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CN120834836A - vehicle - Google Patents

vehicle

Info

Publication number
CN120834836A
CN120834836A CN202410482528.0A CN202410482528A CN120834836A CN 120834836 A CN120834836 A CN 120834836A CN 202410482528 A CN202410482528 A CN 202410482528A CN 120834836 A CN120834836 A CN 120834836A
Authority
CN
China
Prior art keywords
radiator
feed
feeding
vehicle
vehicle body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202410482528.0A
Other languages
Chinese (zh)
Inventor
邓绍刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN202410482528.0A priority Critical patent/CN120834836A/en
Priority to PCT/CN2024/141926 priority patent/WO2025218241A1/en
Publication of CN120834836A publication Critical patent/CN120834836A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/27Adaptation for use in or on movable bodies
    • H01Q1/32Adaptation for use in or on road or rail vehicles
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0602Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
    • H04B7/0805Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching
    • H04B7/0808Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching comparing all antennas before reception
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
    • H04B7/0805Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching
    • H04B7/0814Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching based on current reception conditions, e.g. switching to different antenna when signal level is below threshold
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
    • H04B7/0825Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with main and with auxiliary or diversity antennas
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24Cell structures
    • H04W16/28Cell structures using beam steering
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30Services specially adapted for particular environments, situations or purposes
    • H04W4/40Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30Services specially adapted for particular environments, situations or purposes
    • H04W4/40Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/44Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Details Of Aerials (AREA)

Abstract

本申请实施例提供一种车辆,用于改善方向图存在天线增益缺陷的现象。车辆包括车体、第一馈电辐射体以及通信组件。第一馈电辐射体安装于框架上。通信组件安装于框架和底盘围设出的空间内或者框架上,通信组件包括:多个馈电辐射体、切换模块和通信模块,多个馈电辐射体的工作频段至少部分相同,多个馈电辐射体中的至少一个为第二馈电辐射体,第二馈电辐射体和第一馈电辐射体的工作频段相同,切换模块的公共端口与通信模块耦合,切换模块的第一端口与第二馈电辐射体耦合,切换模块的第二端口通过线缆与第一馈电辐射体耦合。当第二馈电辐射体存在天线增益缺陷时,第一馈电辐射体可以对该天线增益缺陷进行弥补。

An embodiment of the present application provides a vehicle for improving antenna gain defects in a directional pattern. The vehicle includes a vehicle body, a first feed radiator, and a communication component. The first feed radiator is mounted on a frame. The communication component is mounted within the space enclosed by the frame and chassis, or on the frame. The communication component includes: multiple feed radiators, a switching module, and a communication module. The operating frequency bands of the multiple feed radiators are at least partially the same. At least one of the multiple feed radiators is a second feed radiator, and the second feed radiator and the first feed radiator have the same operating frequency band. The common port of the switching module is coupled to the communication module, the first port of the switching module is coupled to the second feed radiator, and the second port of the switching module is coupled to the first feed radiator via a cable. If the second feed radiator has an antenna gain defect, the first feed radiator can compensate for the antenna gain defect.

Description

Vehicle with a vehicle body having a vehicle body support
Technical Field
The embodiment of the application relates to the technical field of communication, in particular to a vehicle.
Background
Vehicles are typically provided with a communication component, which may be, for example, a car networking terminal box (TELEMATICS BOX, tbox). The car networking terminal box can be connected with a car host of a vehicle, so that the car host of the vehicle can communicate with equipment such as a user terminal, a satellite, a communication base station and the like through the car networking terminal box. In some weak field environments or environments of specific signal incoming waves, the directivity of the communication assembly has antenna gain defects, and the communication performance of the whole vehicle is poor.
Disclosure of Invention
The embodiment of the application provides a vehicle which is used for improving the phenomenon that an antenna gain defect exists in a direction diagram.
In a first aspect, an embodiment of the present application provides a vehicle including a vehicle body, a first feed radiator, and a communication assembly. The vehicle body includes a frame and a chassis connected to each other. The first feeding radiator is mounted on the frame. The communication assembly is arranged on the frame or in a space surrounded by the frame and the chassis, and comprises a plurality of feed radiators, a switching module and a communication module, wherein the working frequency ranges of the feed radiators are at least partially the same, the number of the feed radiators is larger than that of the first feed radiators, at least one of the feed radiators is a second feed radiator, the working frequency ranges of the second feed radiator and the first feed radiator are the same, the distance between the second feed radiator and the at least one first feed radiator is larger than 40cm, the common port of the switching module is coupled with the communication module, the first port of the switching module is coupled with the second feed radiator, and the second port of the switching module is coupled with the first feed radiator through a cable.
Wherein, communication module can install in the space that frame and chassis enclose, and the space that frame and chassis enclose can be used for driving, taking and storing (for example, communication module can install in the trunk that the back lid of frame encloses), or communication module can install in the inside of frame (for example, the frame can include the spoiler, and the spoiler can be hollow structure, and communication module can be located the inside of the spoiler of frame). The first feeding radiator may be mounted on the frame, it being understood that the first feeding radiator may be mounted inside an insulating member in the frame, or the first feeding radiator may be mounted on an outer surface of the frame, or the first feeding radiator may be mounted on an inner surface of the frame. Through the arrangement, when the vehicle is in communication, the plurality of feed radiators of the communication assembly are taken as main materials, the first feed radiator is taken as auxiliary materials, and when the second feed radiator is shielded by the vehicle body and has an antenna gain defect, the first feed radiator can compensate the antenna gain defect, so that the antenna gain defect caused by shielding of the vehicle body is avoided, and the communication performance of the whole vehicle is improved.
In some embodiments, which may include the above embodiments, the communication module includes a control unit, and the communication module has an initial operation state and a first operation state, the control unit is configured to control the switching module to couple the communication module and the second feeding radiator in the initial operation state, and the control unit is further configured to control the switching module to couple the communication module and the first feeding radiator in the first operation state. Through the arrangement, when the vehicle communicates, the second feed radiator is used as a main body, the first feed radiator is used as an auxiliary body to compensate the gain defect generated by the second feed radiator, and the communication performance of the whole vehicle is improved.
In some embodiments, which may include the above embodiments, the communication module further includes a detection unit configured to acquire a signal strength of the first feeding radiator and a signal strength of the second feeding radiator. The communication module is used for switching from the initial working state to the first working state when the signal intensity of the second feed radiator is smaller than the preset value and the signal intensity of the second feed radiator is smaller than the signal intensity of the first feed radiator. Through the arrangement, as the signal intensity of the first feed radiator is stronger than that of the second feed radiator, the communication assembly communicates through the first feed radiator in the first working state, and the communication performance of the whole vehicle is improved.
In some embodiments, which may include the above embodiments, the communication module further includes a detection unit for acquiring relative pose information between the satellite and the vehicle body, the relative pose information being indicative of a position and a pose of the vehicle body relative to the satellite in a plane parallel to a bottom surface of the vehicle. The communication module is used for switching from the initial working state to the first working state according to the relative pose information. Through the arrangement, under the first working state, the communication assembly communicates through the first feed radiator, so that the communication performance of the whole vehicle is improved.
In some embodiments, which may include the embodiments described above, the first feed radiator and the second feed radiator together comprise an omni-directional antenna. Through the arrangement, the first feed radiator and the second feed radiator can jointly form an omni-directional coverage effect, and communication performance of the whole vehicle is improved.
In some embodiments, which may include the above embodiments, a portion of the plurality of feed radiators forms a main set antenna, a portion of the plurality of feed radiators forms at least one diversity antenna, and the first feed radiator and the main set antenna are coupled with the communication module through the switching module. With the above arrangement, when the communication module is coupled with the main set antenna, the communication module can perform signal reception and transmission through the main set antenna, and when the communication module is coupled with the first feeding radiator, the communication module can perform signal reception and transmission through the first feeding radiator.
In some embodiments, which may include the above embodiments, in a plane parallel to the bottom surface of the vehicle, a first feed radiator is used as an antenna and transmits and receives signals in a first coverage area, and a second feed radiator is used as an antenna and transmits and receives signals in a second coverage area, the coverage angle of the first coverage area being smaller than the coverage angle of the second coverage area. Because the coverage angle of the first coverage area is smaller than that of the second coverage area, when the vehicle communicates, the second feed radiator is used as a main body for communication, and the first feed radiator is used as an auxiliary body for compensating the gain defect generated by the second feed radiator, so that the communication performance of the whole vehicle is improved.
In some embodiments, which may include the above embodiments, the frame includes a front cover, a front windshield, a roof structure, a rear windshield, and a rear cover arranged in this order from a head of the vehicle body toward a tail of the vehicle body. The communication assembly is located inside the top structural member, and the first feed radiator is arranged on the front windshield or the rear windshield. Through the distributed arrangement of the first feed radiator and the second feed radiator, when the second feed radiator has an antenna gain defect, the first feed radiator can compensate the antenna gain defect, so that the antenna gain defect caused by shielding of a vehicle body is avoided, and the communication performance of the whole vehicle is improved.
In some embodiments, which may include the above embodiments, the frame includes a front cover, a front windshield, a roof structure, a rear windshield, and a rear cover arranged in this order from a head of the vehicle body toward a tail of the vehicle body. The communication assembly is located on one side of the rear cover, and the first feed radiator is arranged on the front windshield or the top structural member. Through the distributed arrangement of the first feed radiator and the second feed radiator, when the second feed radiator has an antenna gain defect, the first feed radiator can compensate the antenna gain defect, so that the antenna gain defect caused by shielding of a vehicle body is avoided, and the communication performance of the whole vehicle is improved.
In some embodiments, which may include the above embodiments, the communication component includes a car networking terminal box. Through setting up first feed radiator and second feed radiator, when the second feed radiator had antenna gain defect, be located first feed radiator and can compensate this antenna gain defect, can improve the communication performance of car networking terminal box.
In a second aspect, an embodiment of the present application provides a vehicle including a vehicle body, a communication assembly, a first feed radiator, and a second feed radiator. The vehicle body includes a frame and a chassis connected to each other. The communication assembly is arranged in the space enclosed by the frame and the chassis. The first feed radiator and the second feed radiator are mounted on the frame, the distance between the first feed radiator and the second feed radiator is larger than 40cm, the first feed radiator and the second feed radiator are both coupled with the communication assembly, the working frequency bands of the second feed radiator and the first feed radiator are the same, and the first feed radiator and the second feed radiator jointly form an omnidirectional antenna.
Through the arrangement, the first feed radiator and the second feed radiator are mounted on the frame, the first feed radiator and the second feed radiator are prevented from being blocked by the vehicle body, when one feed radiator has an antenna gain defect, the other feed radiator can compensate the antenna gain defect, so that the first feed radiator and the second feed radiator jointly form an omni-directional coverage effect, and the communication performance of the whole vehicle is improved.
In some embodiments, which may include the above embodiments, in a plane parallel to the chassis of the vehicle, the first feed radiator is configured to function as an antenna and transmit and receive signals in a first coverage area, and the second feed radiator is configured to function as an antenna and transmit and receive signals in a second coverage area, at least a portion of the coverage angle of the first coverage area and at least a portion of the coverage angle of the second coverage area being at a peripheral angle to each other. Because the coverage angle of at least part of the first coverage area and the coverage angle of at least part of the second coverage area are peripheral angles, the first feed radiator and the second feed radiator form an omni-directional coverage effect together, and the communication performance of the whole vehicle is improved.
In some embodiments, which may include the above embodiments, the distance between the first and second feed radiators is greater than or equal to 1 meter. Through the arrangement, the antenna gain defect caused by shielding of the vehicle body is further avoided, so that the first feed radiator and the second feed radiator jointly form an omni-directional coverage effect, and the communication performance of the whole vehicle is further improved.
In some embodiments, which may include the above embodiments, the frame includes a top portion extending from the head of the vehicle body to the tail of the vehicle body, a first side portion and a second side portion arranged along a first direction, the top portion being located between the first side portion and the second side portion, the first direction being parallel to the chassis of the vehicle and perpendicular to a direction from the head of the vehicle body toward the tail of the vehicle body. The first feed radiator is arranged at the top, and the second feed radiator is arranged at the top. Through all setting up first feed radiator and second feed radiator at the top of automobile body, the signal of the vehicle forward direction is received and sent to one of the two feed radiators of being convenient for, and the signal of the vehicle backward direction is received and sent to the other of the two feed radiators to make first feed radiator and second feed radiator form the effect that the qxcomm technology covered jointly, improve the communication performance of whole car.
In some embodiments, which may include the above embodiments, the roof includes a front cover, a front windshield, a roof structure, a rear windshield, and a rear cover arranged in that order from a head of the vehicle body toward a tail of the vehicle body. The first feed radiator is arranged on the top and comprises a front windshield, a top structural member, a rear windshield and a rear cover. The second feed radiator is arranged on the top and comprises the second feed radiator arranged on one of the front windshield, the top structural member, the rear windshield and the rear cover. Because the first feed radiator and the second feed radiator are not arranged on the front cover of the vehicle body, the first feed radiator and the second feed radiator are beneficial to avoiding influencing the aesthetic property of the whole vehicle and avoiding influencing the windage of the whole vehicle.
In some embodiments, which may include the above embodiments, the frame includes a top portion extending from the head of the vehicle body to the tail of the vehicle body, a first side portion and a second side portion arranged along a first direction, the top portion being located between the first side portion and the second side portion, the first direction being parallel to the chassis of the vehicle and perpendicular to a direction from the head of the vehicle body toward the tail of the vehicle body. The first feed radiator is arranged on the first side part, and the second feed radiator is arranged on the second side part. Through the arrangement, one of the two feed radiators can be mainly used for receiving and transmitting signals in the left direction of the vehicle, and the other of the two feed radiators can be mainly used for receiving and transmitting signals in the right direction of the vehicle, so that the first feed radiator and the second feed radiator jointly form an omni-directional coverage effect, and the communication performance of the whole vehicle is improved.
In some embodiments, which may include the above embodiments, the first side portion includes a first mirror, a first front door, a first rear door, and a first triangular window that are sequentially arranged from a head of the vehicle body toward a tail of the vehicle body, and the second side portion includes a second mirror, a second front door, a second rear door, and a second triangular window that are sequentially arranged from the head of the vehicle body toward the tail of the vehicle body. The first feed radiator is arranged at the first side part and comprises a first feed radiator arranged on one of the first rearview mirror and the first triangular window. The second feed radiator is arranged on the second side part and comprises a second feed radiator arranged on one of the second rearview mirror and the second triangular window. Through the arrangement, one of the two feed radiators can be mainly used for receiving and transmitting signals in the left direction of the vehicle, and the other of the two feed radiators can be mainly used for receiving and transmitting signals in the right direction of the vehicle, so that the first feed radiator and the second feed radiator jointly form an omni-directional coverage effect, and the communication performance of the whole vehicle is improved.
In some embodiments, which may include the above embodiments, the frame includes a top portion extending from the head of the vehicle body to the tail of the vehicle body, a first side portion and a second side portion arranged along a first direction, the top portion being located between the first side portion and the second side portion, the first direction being parallel to the chassis of the vehicle and perpendicular to a direction from the head of the vehicle body toward the tail of the vehicle body. The first feed radiator is arranged at the top, and the second feed radiator is arranged at the first side part or the second side part. Through the arrangement, one of the two feed radiators can transmit and receive signals in the left front direction of the vehicle, the other of the two feed radiators can transmit and receive signals in the right rear direction of the vehicle, or one of the two feed radiators can transmit and receive signals in the right front direction of the vehicle, and the other of the two feed radiators can transmit and receive signals in the left rear direction of the vehicle, so that the first feed radiator and the second feed radiator jointly form an omni-directional coverage effect, and the communication performance of the whole vehicle is improved.
In some embodiments, which may include the embodiments described above, the communication component includes an intelligent cabin domain controller. Through setting up first feed radiator and second feed radiator, can improve the network signal intensity in the whole car, improve network connection's stability and reliability.
Drawings
FIG. 1 is a block diagram of a vehicle according to an embodiment of the present application;
FIG. 2 is a block diagram of a vehicle according to an embodiment of the present application;
FIG. 3 is a block diagram of a communication module according to an embodiment of the present application;
FIG. 4 is a view of a use scenario of a vehicle according to an embodiment of the present application;
FIG. 5 is a view of a use scenario of a vehicle according to an embodiment of the present application;
FIG. 6 is a view of a use scenario of a vehicle according to an embodiment of the present application;
FIG. 7 is a block diagram of a vehicle body position relative to a satellite according to an embodiment of the present application;
FIG. 8 is a block diagram of another vehicle body position relative to satellites according to an embodiment of the present application;
Fig. 9 is a horizontal pattern of a low frequency antenna in a vehicle according to an embodiment of the present application;
fig. 10 is a horizontal pattern of a mid-to-high frequency antenna in another vehicle according to an embodiment of the present application;
FIG. 11 is a block diagram of another vehicle according to an embodiment of the present application;
FIG. 12 is a block diagram of another vehicle according to an embodiment of the present application;
FIG. 13 is a block diagram of another vehicle according to an embodiment of the present application;
FIG. 14 is a block diagram of another vehicle according to an embodiment of the present application;
FIG. 15 is a block diagram of another vehicle according to an embodiment of the present application;
FIG. 16 is a block diagram of another vehicle according to an embodiment of the present application;
FIG. 17 is a block diagram of another vehicle according to an embodiment of the present application;
fig. 18 is a block diagram of another vehicle according to an embodiment of the present application.
Detailed Description
The following description of the technical solutions according to the embodiments of the present application will be given with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments.
Hereinafter, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature.
Furthermore, in the embodiments of the present application, the terms of orientation such as "upper," "lower," "left," "right," "horizontal," and "vertical" are defined with respect to the orientation in which the components in the drawings are schematically disposed, and it should be understood that these directional terms are relative concepts, which are used for descriptive and clarity with respect to each other, and which may be varied accordingly with respect to the orientation in which the components in the drawings are disposed.
In the embodiments of the present application, unless explicitly specified and limited otherwise, the term "connected" is to be construed broadly and may refer to a mechanical or physical connection, i.e., a-to-B connection or a-to-B connection may refer to a fastening member (e.g., screw, bolt, rivet, etc.) between a and B, or a and B may be in contact with each other and a and B may be difficult to separate.
Communication connection may refer to transmission of electrical signals, such as a wireless communication connection and/or a wired communication connection. The wireless communication connection does not require physical intermediaries and does not belong to a connection relationship defining the product architecture.
Coupled, may be understood as directly coupled and/or indirectly coupled, and "coupled connection" may be understood as directly coupled connection and/or indirectly coupled connection. The direct coupling may be referred to as "electrical connection" or "indirect coupling" which is understood to mean that the components are in physical contact and electrically conductive, or may be understood to mean that different components in the circuit configuration are connected by a physical circuit capable of transmitting an electrical signal, such as a copper foil or a wire of a printed circuit board (printed circuit board, PCB), and the two conductors are electrically conductive in a spaced/non-contact manner. In one embodiment, the indirect coupling may also be referred to as capacitive coupling, such as by coupling between a gap between two conductive elements to form an equivalent capacitance to effect signal transmission.
Switching on: the above electrical connection or indirect coupling means may be used to conduct or connect two or more components to perform signal/energy transmission, which may be called on.
The radiator, or antenna branch, is the device in the antenna for receiving/transmitting electromagnetic radiation. In some cases, an "antenna" is understood in a narrow sense as a radiator that converts guided wave energy from a transmitter into radio waves, or converts radio waves into guided wave energy for radiating and receiving radio waves. The modulated high frequency current energy (or guided wave energy) produced by the transmitter is transmitted via the feeder to the transmitting radiator, where it is converted into electromagnetic wave energy of a certain polarization and radiated in a desired direction. The receiving radiator converts electromagnetic wave energy from a certain polarization in a particular direction in space into modulated high frequency current energy which is fed via a feeder to the receiver input.
The radiator (or antenna branch) may include a conductor having a specific shape and size, such as a wire shape, a sheet shape, or the like, and the present application is not limited to a specific shape. In one embodiment, the linear radiator may be simply referred to as a linear antenna. In one embodiment, the linear radiator may be implemented by a conductive bezel, which may also be referred to as a bezel antenna. In one embodiment, the wire-shaped radiator may be implemented by a bracket conductor, which may also be referred to as a bracket antenna. In one embodiment, the wire diameter (e.g., including thickness and width) of the wire radiator, or the radiator of the wire antenna, is much smaller (e.g., less than 1/16 of a wavelength) than the wavelength (e.g., a medium wavelength), and the length may be compared to the wavelength (e.g., about 1/8 of a wavelength, or 1/8 to 1/4, or 1/4 to 1/2, or longer). The main forms of the line antenna are dipole antennas, half-wave element antennas, monopole antennas, loop antennas and inverted-F antennas (also called IFA, inverted F Antenna). For example, for dipole antennas, each dipole antenna typically includes two radiating branches, each branch being fed by a feed from a feed end of the radiating branch. For example, an inverted-F Antenna (Inverted-F Antenna, IFA) may be considered to be a monopole Antenna with the addition of a ground path. IFA antennas have one feed point and one ground point and are referred to as inverted F antennas because of their inverted F shape in side view. In one embodiment, the patch radiator may comprise a microstrip antenna, or patch antenna, such as a planar inverted-F antenna (also known as PIFA, planar Inverted F Antenna). In one embodiment, the sheet radiator may be implemented by a planar conductor (e.g., a conductive sheet or conductive coating, etc.). In one embodiment, the sheet radiator may comprise a conductive sheet, such as a copper sheet or the like. In one embodiment, the sheet radiator may include a conductive coating, such as silver paste or the like. The shape of the sheet radiator includes a circular shape, a rectangular shape, a ring shape, etc., and the present application is not limited to a specific shape. The microstrip antenna generally comprises a dielectric substrate, a radiator and a floor, wherein the dielectric substrate is disposed between the radiator and the floor.
The radiator (or antenna branch) may also comprise a slot or slit formed in the conductor, for example, a closed or semi-closed slot or slit formed in the grounded conductor face. In one embodiment, the slotted or slotted radiator may be referred to simply as a slot antenna or slot antenna. In one embodiment, the radial dimension (e.g., including the width) of the slot or slot of the slot antenna/slot antenna is substantially smaller (e.g., less than 1/16 of a wavelength) than the wavelength (e.g., the medium wavelength), and the length dimension may be comparable to the wavelength (e.g., about 1/8 of a wavelength, or 1/8 to 1/4, or 1/4 to 1/2, or longer) of the length (e.g., the medium wavelength). In one embodiment, a radiator with a closed slot or slit may be referred to simply as a closed slot antenna. In one embodiment, a radiator having a semi-closed slot or slit (e.g., an opening added to the closed slot or slit) may be referred to simply as an open slot antenna. In some embodiments, the slit shape is elongated. In some embodiments, the length of the slot is about half a wavelength (e.g., the medium wavelength). In some embodiments, the length of the slot is about an integer multiple of the wavelength (e.g., one time the medium wavelength). In some embodiments, the slot may be fed with a transmission line connected across one or both of its sides, whereby the slot is excited with a radio frequency electromagnetic field and radiates electromagnetic waves into space. In one embodiment, the radiator of the slot antenna or the slot antenna can be realized by a conductive frame with two ends grounded, and can also be called as a frame antenna, and in this embodiment, the slot antenna or the slot antenna can be regarded as comprising a linear radiator which is arranged at intervals from a floor and is grounded at two ends of the radiator, so that a closed or semi-closed slot or slot is formed. In one embodiment, the radiator of the slot antenna or slot antenna may be implemented by a bracket conductor with both ends grounded, which may also be referred to as a bracket antenna.
Communication band/operating band-whatever the type of antenna, always operates within a certain frequency range (band width). For example, the operating band of the antenna supporting the B40 band includes frequencies in the range of 2300mhz to 240mhz, or that is, the operating band of the antenna includes the B40 band. The frequency range meeting the index requirements can be regarded as the operating frequency band of the antenna. The width of the operating band is referred to as the operating bandwidth. The operating bandwidth of an omni-directional antenna may reach 3-5% of the center frequency. The operating bandwidth of the directional antenna may reach 5-10% of the center frequency. The bandwidth may be considered as a range of frequencies on either side of a center frequency (e.g., the resonant frequency of a dipole), where the antenna characteristics are within an acceptable range of values for the center frequency.
The resonant frequency band and the operating frequency band may be the same or may partially overlap. In one embodiment, one or more resonant frequency bands of an antenna may cover one or more operating frequency bands of the antenna.
End/point "in the first end/second end/feed end/ground end/feed point/ground point/connection point of the antenna radiator is not to be construed narrowly as necessarily being an end point or end physically disconnected from other radiators, but may also be considered as a point or a segment on a continuous radiator. In one embodiment, an "end/point" may include a connection/coupling region on the antenna radiator to which other conductive structures are coupled, e.g., a feed end/feed point may be a coupling region on the antenna radiator to which a feed structure or a feed circuit is coupled (e.g., a region facing a portion of the feed circuit), and a ground end/ground point may be a connection/coupling region on the antenna radiator to which a ground structure or a ground circuit is coupled.
The definitions of collineation, co-planarity, symmetry (e.g., axisymmetric, or centrosymmetric, etc.), parallel, perpendicular, identical (e.g., identical length, identical width, etc.), etc. mentioned in the embodiments of the present application are all intended to be relative to the state of the art and are not strictly defined in a mathematical sense. There may be a deviation in the line width direction between the edges of the two radiating branches or the two antenna elements that are collinear that is less than a predetermined threshold (e.g., 1mm,0.5m, or 0.1 mm). There may be a deviation between the edges of the two radiating stubs or the two antenna elements that are coplanar in a direction perpendicular to their coplanar planes that is less than a predetermined threshold. There may be a deviation of a predetermined angle between two antenna elements parallel or perpendicular to each other. In one embodiment, the predetermined threshold may be less than or equal to a threshold of 1mm, for example the predetermined threshold may be 0.5mm, or may be 0.1mm. In one embodiment, the predetermined angle may be an angle in the range of ±10°, for example, the predetermined angle deviation is ±5°.
The same operating frequency band (also referred to as the same frequency) mentioned in the embodiment of the present application may be understood as any one of the following two cases:
1) The operating frequency band of the first antenna and the operating frequency band of the second antenna comprise the same communications frequency band. In one embodiment, the first antenna and the second antenna are each a subunit in a MIMO antenna system. For example, the operating frequency band of the first antenna and the operating frequency band of the second antenna each include a sub6G frequency band in 5G.
2) The working frequency band of the first antenna and the working frequency band of the second antenna are partially overlapped in frequency. For example, the operating band of the first antenna includes B35 (1.85-1.91 GHz) in LTE, and the operating band of the second antenna includes B39 (1.88-1.92 GHz) in LTE.
Antenna pattern, also known as radiation pattern. Refers to a pattern of the relative field strength (normalized modulus) of the antenna radiation field as a function of direction at a distance from the antenna, typically represented by two mutually perpendicular planar patterns passing through the antenna's maximum radiation direction.
The antenna pattern typically has a plurality of radiation beams. The radiation beam with the highest radiation intensity is called a main lobe, and the rest radiation beams are called side lobes or side lobes. Among the side lobes, the side lobe in the opposite direction to the main lobe is also called the back lobe.
Antenna gain, which is used to characterize the extent to which the antenna radiates the input power in a concentrated manner. In general, the narrower the main lobe of the antenna pattern, the smaller the side lobe, and the higher the antenna gain.
Referring to fig. 1 and 2, an embodiment of the present application provides a vehicle including a communication assembly 10 and a vehicle body 20. Wherein the vehicle body 20 includes a frame 201 and a chassis 202 connected to each other. Wherein the chassis 202 may be used to support, mount the frame 201 to form an overall shape of the vehicle.
The communication module 10 is mounted in a space (e.g., Q in fig. 1) enclosed by the frame 201 and the chassis 202, which space may be used for driving, riding and storing (as shown in fig. 1, the communication module 10 may be located in a trunk enclosed by a rear cover of the vehicle body 20). Or the communication assembly 10 may also be mounted to the frame 201 (e.g., the frame 201 may include a spoiler, which may be a hollow structure, and the communication assembly may be located inside the spoiler of the frame 201).
However, since the material of the vehicle body 20 includes metal, the vehicle body 20 has a certain shielding effect on the antenna of the communication assembly 10 in some weak field environments or in the environments of specific signal incoming waves, so that the antenna of the communication assembly 10 has a gain defect at a part of angles in the directional diagram, the directional diagram of the whole vehicle has an antenna gain defect, and the communication performance of the whole vehicle is poor. For example, OTA (Over-the-Air Technology, or network signal strength inside the vehicle is poor.
In view of this, as shown in fig. 2, the vehicle in the embodiment of the application may include a first feeding radiator 31. The first feeding radiator 31 is mounted on the frame 201. The first feeding radiator 31 may be mounted on the frame 201, and it is understood that the first feeding radiator 31 may be mounted inside the frame 201, or the first feeding radiator 31 may be mounted on an outer surface of the frame 201, or the first feeding radiator 31 may be mounted on an inner surface of the frame 201.
For example, when the first power feeding radiator 31 is provided to a metal part of the vehicle body 20, the first power feeding radiator 31 may be mounted to the vehicle body 20 by adsorption, plugging, screw connection, or the like, so that the first power feeding radiator 31 may be used as an antenna such as a shark fin antenna, a luggage rack antenna, or the like, and in this case, the first power feeding radiator 31 may be mounted to an outer surface of the frame 201. When the first feeding radiator 31 is disposed on the glass of the frame 201, a metal plating film may be disposed on the surface of the glass substrate so that the first feeding radiator 31 may be located on the outer surface or the inner surface of the frame 201, or a metal plating film may be disposed between the two glass substrates so that the first feeding radiator 31 may be disposed inside the frame 201. Further, when the first feeding radiator 31 is mounted inside the frame 201 or on the inner surface of the frame 201, the first feeding radiator 31 may be mounted on an insulating member of the frame 201, such as a plastic member or glass. With the above arrangement, it is advantageous to avoid that the metal parts in the vehicle body 20 shield the first feeding radiator 31, thereby affecting the performance of the first feeding radiator 31.
Of course, the first feeding radiator 31 may be mounted on the vehicle body 20 in other manners, and the mounting form of the first feeding radiator 31 is not limited in the embodiment of the present application.
In an embodiment of the present application, the communication assembly 10 may include a plurality of feed radiators 14. The operating frequency bands of the plurality of feed radiators 14 are at least partially identical. For example, the operating frequency band of one portion of the plurality of feed radiators 14 may be low, medium, and high, and the operating frequency band of another portion of the plurality of feed radiators 14 may be medium and high. The number of the plurality of feeding radiators 14 is greater than the number of the first feeding radiators 31. With the above arrangement, when the vehicle communicates, the communication can be performed mainly by the plurality of power feeding radiators 14 of the communication module 10, and the antenna gain defect generated by the plurality of power feeding radiators 14 can be compensated for by the first power feeding radiator 31 as an auxiliary.
At least one of the plurality of feed radiators 14 is a second feed radiator 32, and the second feed radiator 32 and the first feed radiator 31 have the same operating frequency band. Illustratively, the first feed radiator 31 may be coupled to the communication assembly 10 such that the second feed radiator 32 and the first feed radiator 31 may support the same communication function. The distance between the second feed radiator 32 and the at least one first feed radiator 31 is greater than 40cm. Through the arrangement, a certain distance is reserved between the first feed radiator 31 and the second feed radiator 32, so that the first feed radiator 31 and the second feed radiator 32 can be distributed on the vehicle body 20 in a relatively dispersed manner, and the antenna formed by the first feed radiator 31 and the second feed radiator 32 is favorable for uniform radiation on a directional diagram.
The communication assembly 10 further comprises a switching module 12 and a communication module 11. Wherein a plurality of feed radiators 14 may be connected with the communication module 11 via respective radio frequency paths 13. The common port 12a of the switching module 12 is coupled to the communication module 11, the first port 12b of the switching module 12 is coupled to the second feeding radiator 32, and the second port 12c of the switching module 12 is coupled to the first feeding radiator 31 by means of a cable 40. Wherein the common port 12a of the switching module 12 may be coupled to the communication module via the radio frequency path 13 and the cable 40 may be connected to the first feeding radiator 31 via a corresponding connector 50 (e.g. FAKRA (FAchKReis Automobil) connector).
In some embodiments, the switching module 12 may comprise a mechanical switching switch, such as a single pole, three throw switch, with three switching terminals of the single pole, three throw switch for connecting the communication module 11, the first feeding radiator 31 and the second feeding radiator 32, respectively. Or in some embodiments the switching module 12 may further comprise an electronic switching switch, for example three switching paths consisting of switching tubes, and the three switching paths are used for connecting the communication module 11, the first feeding radiator 31 and the second feeding radiator 32, respectively.
Through the above arrangement, when the second feeding radiator 32 has an antenna gain defect, the first feeding radiator 31 can compensate the antenna gain defect, which is beneficial to avoiding the antenna gain defect generated by shielding of the vehicle body 20 and improving the communication performance of the whole vehicle.
In some examples, the communication assembly 10 may include a car networking terminal box (TELEMATICS BOX, tbox). The car networking terminal box can be connected with a car host of a vehicle, so that the car host of the vehicle can communicate with devices such as a user mobile terminal, a satellite, a vehicle, roadside equipment, a communication base station and the like through the car networking terminal box. By arranging the first feeding radiator 31 and the second feeding radiator 32, when the second feeding radiator 32 has an antenna gain defect, the first feeding radiator 31 can compensate the antenna gain defect, and the communication performance of the car networking terminal box can be improved. For example, the telephone can be improved from the failure to call to the successful call, and the vehicle audio-visual entertainment system can be changed from a cartoon to a smooth one.
In some embodiments, the internet of vehicles terminal box may include a cellular antenna to enable information interaction with an off-board TSP (TELEMATICS SERVICE Platform) through a cellular base station. In some embodiments, the Internet of vehicles terminal box may also include a global satellite navigation system (global navigation SATELLITE SYSTEM, abbreviated GNSS) antenna, hereinafter abbreviated satellite antenna, to enable Beidou satellite navigation system ((beidou navigation SATELLITE SYSTEM, abbreviated BDS) navigation or Global positioning System (global positioning system, abbreviated GPS) navigation, and correspondingly, the Vehicle-specific microcomputer controller may enable positioning and navigation functions of the Vehicle through the telematics processor.
In some embodiments, the first feed radiator 31 and the second feed radiator 32 may together constitute an omni-directional antenna. Here, an "omni-directional antenna" is understood to mean a radiation that is uniform from 0 ° to 360 ° in the horizontal pattern and at least partially in the vertical pattern. For example, when the first and second feeding radiators 31 and 32 are both used as a cellular antenna or a V2X antenna, uniform radiation of 70 ° to 90 ° is exhibited in a vertical pattern, and when the first and second feeding radiators 31 and 32 are both used as a satellite 80 antenna, uniform radiation of 0 ° to 80 ° is exhibited in a vertical pattern. Through the arrangement, the first feed radiator 31 and the second feed radiator 32 can jointly form an omni-directional coverage effect, and communication performance of the whole vehicle is improved.
In some embodiments, as shown in fig. 2 and 3, the communication module 11 may have an initial operation state and a first operation state, and the communication module 11 may include a control unit 115, and the control unit 115 may be configured to control the switching module 12 to couple the communication module 11 and the second feeding radiator 32 in the initial operation state. The control unit 115 may also be used to control the switching module 12 to couple the communication module 11 and the first feeding radiator 31 in the first operating state. Wherein the control unit 115 of the communication module 11 may send a control signal to the switching module 12 to control the first port 12b and the second port 12c of the switching module 12 to be connected or disconnected so that the communication module 11 is coupled with the second feeding radiator 32 or the communication module 11 is coupled with the first feeding radiator 31.
Illustratively, during communication of the vehicle, in an initial operating state, the control unit 115 may control the first port 12b of the switching module 12 to be connected, and the control unit 115 may control the second port 12c of the switching module 12 to be disconnected to couple the communication module 11 with the second feeding radiator 32. In the first operating state, the control unit 115 may control the second port 12c of the switching module 12 to communicate, and the control unit 115 may control the first port 12b of the switching module 12 to be disconnected to couple the communication module 11 with the first feeding radiator 31. Through the arrangement, when the vehicle communicates, the second power supply radiator 32 is used as a main part, the first power supply radiator 31 is used as an auxiliary part to compensate the gain defect generated by the second power supply radiator 32, and the communication performance of the whole vehicle is improved.
In some embodiments, the communication module 11 may further comprise a detection unit 113, the detection unit 113 further being configured to obtain the signal strength of the first feeding radiator 31 and the signal strength of the second feeding radiator 32. Wherein the detection unit 113 may be coupled to the control unit 115, the communication module 11 may acquire radio frequency signals from the first and second feeding radiators 31 and 32 such that the detection unit 113 acquires the signal strength of the first feeding radiator 31 and the signal strength of the second feeding radiator 32. The communication module 11 is configured to switch from the initial operation state to the first operation state when the signal strength of the second feeding radiator 32 is smaller than a preset value and the signal strength of the second feeding radiator 32 is smaller than the signal strength of the first feeding radiator 31.
Here, the "preset value" may be understood as a minimum value of signal intensity at which the second feeding radiator 32 can secure the stability of the communication connection. The signal strength may be represented by a parameter RSRP (REFERENCE SIGNAL RECEIVING Power), which is an average value of signal powers received on all REs (resource elements) carrying cell (cell) reference signals on a specified measurement band, where a larger value of RSRP indicates a stronger effective signal received by an antenna.
In some examples, as shown in fig. 4, the signal strength at the second feed radiator 32 is poor in a low-field environment or a network-free environment, such as an underground garage, tunnel, suburban, highway in remote areas, etc. (e.g., RSRP less than-105 dBm) where the signal is poor. Or in some other examples, when the incoming wave direction of the base station signal is blocked by the vehicle body 20, the signal strength of the second feeding radiator 32 is also poor. For example, as shown in fig. 5, when the second power feeding radiator 32 is disposed in a trunk defined by the rear cover of the vehicle body 20, the signal strength of the second power feeding radiator 32 is poor (the broken line in fig. 5 indicates that the signal strength of the vehicle forward wave is poor) when the incoming wave direction of the base station signal is directed to the head of the vehicle. Of course, the poor signal strength of the second feeding radiator 32 is not limited to the above two cases, and the embodiment of the present application is not limited thereto.
In the initial operation state, the control unit 115 controls the switching module 12 to couple the communication module 11 and the second feeding radiator 32, and the detection unit 113 may acquire the signal strength of the second feeding radiator 32. When the signal intensity received by the second feeding radiator 32 is poor, the signal intensity of the second feeding radiator 32 acquired by the detection unit 113 is smaller than a preset value. The control unit 115 controls the switching module 12 to couple the communication module 11 and the first feeding radiator 31, and the detection unit 113 may acquire the signal strength of the first feeding radiator 31. When the signal intensity of the second feeding radiator 32 is smaller than the signal intensity of the first feeding radiator 31, the communication module 11 is switched from the initial operation state to the first operation state, and the control unit 115 controls the switching module 12 to continue to couple the communication module 11 and the first feeding radiator 31.
Through the above arrangement, since the signal intensity of the first feeding radiator 31 is stronger than that of the second feeding radiator 32, in the first working state, the communication assembly 10 communicates through the first feeding radiator 31, which is beneficial to improving the communication performance of the whole vehicle.
In some other examples, the communication module 11 also has a second operating state, in which the control unit 115 may also be used to control the switching module 12 to couple the communication module 11 and the second feeding radiator 32. The communication module 11 is further configured to switch from the first operating state to the second operating state when the signal strength of the second feeding radiator 32 is less than a preset value and the signal strength of the second feeding radiator 32 is greater than the signal strength of the first feeding radiator 31.
As described in the above embodiment, when the signal intensity of the second feeding radiator 32 acquired by the detection unit 113 is smaller than the preset value, the control unit 115 controls the switching module 12 to couple the communication module 11 and the first feeding radiator 31, and the detection unit 113 may acquire the signal intensity of the first feeding radiator 31. When the signal intensity of the second feeding radiator 32 is greater than the signal intensity of the first feeding radiator 31, the communication module 11 is switched from the first operation state to the second operation state, and the control unit 115 controls the switching module 12 to couple the communication module 11 and the second feeding radiator 32.
In some other examples, as shown in fig. 6, in a medium-high field environment (e.g., RSRP greater than-105 dBm), and the incoming wave direction of the base station signal has multiple directions, the base station signal may not be obscured by the vehicle body 20. At this time, in the initial operation state, the control unit 115 controls the switching module 12 to couple the communication module 11 and the second feeding radiator 32, and the detection unit 113 may acquire the signal strength of the second feeding radiator 32. Since the signal strength of the second feeding radiator 32 acquired by the communication module 11 is greater than or equal to the preset value, the control unit 115 controls the switching module 12 to continue to couple the communication module 11 and the second feeding radiator 32. Through the above arrangement, advantages of good OTA performance and MIMO (Multiple-input Multiple-output) advantages of the Multiple feed radiators 14 inside the communication module 10 are advantageously exerted, and low time delay and high efficiency of communication are ensured.
Based on the above-described embodiments, the first feeding radiator 31 and the second feeding radiator 32 can each be used as a cellular antenna so that the first feeding radiator 31 and the second feeding radiator 32 can communicate with a base station. Or the first and second feed radiators 31 and 32 may each be used as an antenna for the satellite 80 so that the first and second feed radiators 31 and 32 can communicate with the satellite 80.
In some examples, the communication module 11 further includes a detection unit 113, where the detection unit 113 is configured to obtain relative pose information between the satellite 80 and the vehicle body 20, where the relative pose information is configured to indicate a position and a pose of the vehicle body 20 relative to the satellite 80 in a plane parallel to a bottom surface of the vehicle.
The position and posture of the vehicle body 20 relative to the satellite 80 in a plane parallel to the vehicle bottom surface (for example, a plane P in fig. 7) can be represented by a distance and azimuth B (azimuth) of the vehicle body 20 relative to the satellite 80, as shown in fig. 3 and 7. For example, the detection unit 113 may include IMU (Inertial Measurement Unit) sensors, and the communication module 11 may obtain current latitude and longitude information of the vehicle, and calculate a pitch angle a (elevation) of the vehicle with respect to the satellite 80 according to the latitude and longitude information. Here, the pitch angle a refers to an angle by which the vehicle body 20 rotates upward or downward from a reference plane (e.g., a plane parallel to the vehicle bottom surface in the embodiment of the present application) with respect to the satellite 80, and may range from-90 to 90 degrees, for example. Further, the detection unit 113 may calculate the azimuth angle B of the vehicle with respect to the satellite 80 from the pitch angle a of the vehicle with respect to the satellite 80. The azimuth B refers to an angle of rotation of the vehicle body 20 clockwise or counterclockwise from a reference direction (e.g., a direction in which the tail of the vehicle body 20 points toward the head of the vehicle in the embodiment of the present application) with respect to the satellite 80, and may range from 0to 360 degrees, for example.
Based on the above arrangement, as shown in connection with fig. 8, the first feeding radiator 31 can be used as an antenna and transmit and receive signals in the first coverage area M1 in a plane parallel to the vehicle bottom surface. In the present embodiment, "vehicle bottom surface" may be understood as a plane in which the chassis 202 of the vehicle is located, or "a plane parallel to the vehicle bottom surface" may be understood as a plane parallel to the running plane of the vehicle. In the embodiment of the application, the "coverage area" can be understood as that when the antenna is a cellular antenna, the gain of the antenna in the coverage area can be more than-5 dBi, the minimum gain value of the antenna in the coverage area is-8 dBi, and when the antenna is a satellite antenna, the gain of the antenna in the coverage area can be more than-5 dBi.
The communication module 11 is configured to switch from the initial operating state to the first operating state according to the relative pose information. For example, the first feeding radiator 31 may be disposed on the front windshield 212 of the vehicle body 20, the first coverage area M1 may be in a region in front of the vehicle body 20, and a coverage angle of at least part of the first coverage area M1 may be 90 °. Here, the detection unit 113 can obtain the position of the satellite 80 with respect to the first feeding radiator 31 based on the relative pose information. When the orthographic projection of the satellite 80 in a plane parallel to the vehicle floor is located in the first coverage area M1, the first feeding radiator 31 transmits and receives signals in the first coverage area M1.
In the initial operating state, the control unit 115 controls the switching module 12 to couple the communication module 11 and the second feeding radiator 32, and the detection unit 113 may obtain the current longitude and latitude information of the vehicle, thereby obtaining the azimuth B of the vehicle body 20. That is, the position and posture of the satellite 80 with respect to the vehicle body 20 in a plane parallel to the bottom surface of the vehicle body 20 can be acquired, that is, the detection unit 113 can acquire the relative posture information. For example, in the initial operating state, the satellite 80 is located directly in front of the vehicle body 20 in a plane parallel to the bottom surface of the vehicle body 20 (i.e., the azimuth angle B of the vehicle body 20 with respect to the satellite 80 is 0 degrees), and the orthographic projection of the satellite 80 in the plane parallel to the bottom surface of the vehicle is located in the first coverage area M1. At this time, the communication module 11 is switched from the initial operation state to the first operation state according to the relative pose information, and the control unit 115 controls the switching module 12 to couple the communication module 11 and the first feeding radiator 31 so that the communication module 10 communicates with the satellite 80 through the first feeding radiator 31.
Through the above arrangement, in the first working state, the communication assembly 10 communicates through the first feeding radiator 31, which is beneficial to improving the communication performance of the whole vehicle.
For example, the second feeding radiator 32 may be provided at one side of the rear cover 215 of the vehicle body 20, and the second feeding radiator 32 is used as an antenna and transmits and receives signals in the second coverage area M2 in a plane parallel to the vehicle bottom surface. In some examples, the communication module 11 may also have a second operating state, in which the control unit 115 may also be used to control the switching module 12 to couple the communication module 11 and the second feeding radiator 32. The communication module 11 may be further configured to switch from the first operating state to the second operating state according to the relative pose information. The second coverage area M2 may be an area rearward of the vehicle body 20, and at least part of the second coverage area M2 may have a coverage angle of 270 °, for example. Through the arrangement, the second coverage area M2 and the first coverage area M1 can form omni-directional coverage, so that the communication performance of the vehicle is improved.
As the vehicle travels, the position and attitude of the vehicle relative to the satellites 80 also changes. The detection unit 113 may acquire current latitude and longitude information of the vehicle, and further acquire the azimuth B of the vehicle body 20. In a plane parallel to the bottom surface of the vehicle body 20, the satellite 80 is positioned right of the vehicle body 20 (i.e., the vehicle body 20 has an azimuth angle B of 90 degrees relative to the satellite 80), and the satellite 80 can be transformed from being positioned in the first coverage area M1 to being positioned in the second coverage area M2. At this time, the communication module 11 is in a second operation state from the first operation state according to the relative pose information, and the control unit 115 controls the switching module 12 to couple the communication module 11 and the second feeding radiator 32 so that the communication module 10 communicates with the satellite 80 through the second feeding radiator 32.
Based on the above-described embodiments, the first feeding radiator 31 and the second feeding radiator 32 can each be used as an antenna for the satellite 80, so that the first feeding radiator 31 and the second feeding radiator 32 can communicate with the satellite 80.
Fig. 9 is a horizontal direction diagram of a Low Band (LB) antenna in a vehicle according to an embodiment of the present application, and fig. 10 is a horizontal direction diagram of a Mid-High Band (MHB) antenna in another vehicle according to an embodiment of the present application. The broken lines in fig. 9 and 10 are used to indicate the radiation directions in which communication is performed using only the plurality of feeding radiators 14 in the communication module 10, and the solid lines in fig. 9 and 10 are used to indicate the radiation directions in which communication is performed using the plurality of feeding radiators 14 and the first feeding radiator 31 in the communication module 10. Wherein when the vehicle communicates using only the plurality of feeding radiators 14 in the communication module 10 and the communication module 10 is disposed at one side of the vehicle tail, the vehicle is shielded by the vehicle body 20, and the front (azimuth B range is 90 ° to 270 °) has an antenna gain defect. As shown in fig. 9, the antenna gain curve of the low frequency antenna is around azimuth B225 ° (as at position 1 in fig. 9), where the antenna minimum gain is only-23 dBi, and as shown in fig. 10, the antenna gain curve of the medium and high frequency antenna is around azimuth B196 ° (as at position 1 in fig. 10), where the antenna minimum gain is only-21 dBi. When the vehicle communicates using the plurality of feed radiators 14 and the first feed radiator 31 in the communication module 10, the antenna gain of the low frequency antenna is approximately-8 dBi around the azimuth angle B225 ° (as at position 2 in fig. 9), as shown in fig. 9, and the antenna gain of the medium and high frequency antenna is approximately-7 dBi around the azimuth angle B196 ° (as at position 2 in fig. 10).
Further, when the vehicle communicates using only the plurality of feeding radiators 14 in the communication module 10 and the communication module 10 is disposed on one side of the vehicle tail, the front (azimuth B ranges from 90 ° to 270 °) has an antenna dead spot. For example, among the plurality of feed radiators 14 of the communication module 10, the antenna stub of the low frequency antenna may have a duty ratio of 25/180, and the antenna stub of the medium and high frequency antenna may have a duty ratio of 20/180. When the communication assembly 10 in the vehicle communicates through the first feeding radiator 31, the antenna dead spot can be improved.
Further, when the vehicle uses only the plurality of feeding radiators 14 in the communication assembly 10 for communication, and the communication assembly 10 is disposed on one side of the vehicle tail, the minimum EIRP (Equivalent Isotropic Radiated Power, equivalent omni-directional radiation power) of the whole vehicle is low, wherein the minimum EIRP of the low frequency antenna may be-0.5 dBm, and the minimum EIRP of the medium and high frequency antenna may be 0.6dBm. When the communication assembly 10 in the vehicle communicates through the first feed radiator 31, the minimum EIRP of the low frequency antenna may be 11.7dBm and the minimum EIRP of the medium and high frequency antenna may be 9.9dBm.
In summary, the first feeding radiator 31 and the second feeding radiator 32 can jointly form an omni-directional coverage effect, so that the communication performance of the whole vehicle is improved.
In some embodiments, portions of the plurality of feed radiators 14 may form a main set antenna, portions of the plurality of feed radiators 14 may form at least one diversity antenna, and the first feed radiator 31 and the main set antenna may be coupled with the communication module 11 through the switching module 12. Wherein, the main set antenna can have the function of receiving and transmitting signals, and the diversity antenna can have the function of receiving signals. With the above arrangement, when the communication module 11 is coupled with the main set antenna, the communication module 11 can perform reception and transmission of signals through the main set antenna, and when the communication module 11 is coupled with the first feeding radiator 31, the communication module 11 can perform reception and transmission of signals through the first feeding radiator 31.
In some embodiments, the first feed radiator 31 is configured to act as an antenna and transmit and receive signals within the first coverage area M1, and the second feed radiator 32 is configured to act as an antenna and transmit and receive signals within the second coverage area M2 in a plane parallel to the bottom surface of the vehicle, the coverage angle of the first coverage area M1 being smaller than the coverage angle of the second coverage area M2.
Illustratively, the first feed radiator 31 may be for use as a first antenna, which may be a directional high gain antenna, and which may transmit and receive signals within the first coverage area M1. Similarly, the second feed radiator 32 may be used as a second antenna, which may be a directional high gain antenna, and which may transmit and receive signals within the second coverage area M2.
In some examples, the coverage angle of the coverage area may be adjusted by adjusting the feed radiator 14. For example, the feed radiator 14 may be beamformed, or a metal member may be provided on the vehicle body 20 and may have a reflection effect on the radiation beam of the feed radiator 14, or the installation angle of the feed radiator 14 itself may be changed.
Because the coverage angle of the first coverage area M1 is smaller than that of the second coverage area M2, when the vehicle communicates, the second feed radiator 32 is used as a main part, and the first feed radiator 31 is used as an auxiliary part to compensate the gain defect generated by the second feed radiator 32, so that the communication performance of the whole vehicle is improved.
Or in some other examples, the second feed radiator 32 may be used as a second antenna, which may also be an omni-directional antenna, and which may transmit and receive signals within the second coverage area M2. At this time, the coverage angle of the first coverage area M1 is smaller than that of the second coverage area M2.
In some embodiments, the distance between the first feeding radiator 31 and the second feeding radiator 32 may be greater than or equal to 1 meter. For example, the distance between the first feeding radiator 31 and the second feeding radiator 32 may be 1 meter, 1.2 meters, 1.3 meters, or 1.5 meters. Through the arrangement, the antenna gain defect caused by shielding of the vehicle body 20 is further avoided, so that the first feed radiator 31 and the second feed radiator 32 jointly form an omni-directional coverage effect, and the communication performance of the whole vehicle is further improved.
As shown in fig. 11, the frame 201 may include a top portion 21, a first side portion 22, and a second side portion 23, the top portion 21 extending from a head of the vehicle body 20 to a tail of the vehicle body 20, the first side portion 22 and the second side portion 23 being arranged along a first direction, the top portion 21 being located between the first side portion 22 and the second side portion 23, the first direction Y being parallel to a chassis 202 of the vehicle and perpendicular to a direction from the head of the vehicle body 20 toward the tail of the vehicle body 20. The direction from the head of the vehicle body 20 to the tail of the vehicle body 20 may be, for example, the X direction in fig. 11.
Illustratively, the roof 21 may include a front cover 211, a front windshield 212, a roof structural member 213, a rear windshield 214, and a rear cover 215 arranged in this order from the head of the vehicle body 20 toward the tail of the vehicle body 20.
In some examples, the communication assembly 10 may be located inside the top structure 213. For example, as shown in fig. 11, the roof structure 213 may include a first cross member 2131, a roof glass 2135, and a spoiler 2136 arranged in this order from the head of the vehicle body 20 toward the tail of the vehicle body 20, the roof structure 213 may further include a first luggage rack 2137 and a second luggage rack 2138 arranged along the first direction Y, the roof glass 2135 may be positioned between the first luggage rack 2137 and the second luggage rack 2138, and both the first luggage rack 2137 and the second luggage rack 2138 may be positioned between the first cross member 2131 and the spoiler 2136. The communication assembly 10 may be disposed inside the spoiler 2136 or the communication assembly 10 may be disposed within a metal plate positioned between the backdrop glass 2135 and the spoiler 2136.
In some other examples, the communication assembly 10 may also be located on one side of the back cover 215. Based on the above arrangement, the first feeding radiator 31 may be provided on the front windshield 212 or the roof structure 213. In some embodiments, the structure of the top structural member 213 may be as described in the above embodiments, and will not be described herein. When the first feeding radiator 31 is provided to the top structural member 213 in the above-described embodiment, the first feeding radiator 31 may be located on one of the first cross beam 2131, the roof glass 2135, the first luggage rack 2137, the second luggage rack 2138, and the spoiler 2136.
Or in some other embodiments, as shown in fig. 12, the structure of the top structural member 213 may further include a first cross member 2131, a second cross member 2132, and a third cross member 2133 that are sequentially arranged from the head of the vehicle body 20 toward the tail of the vehicle body 20. Wherein, the first beam 2131 may be an a-pillar beam, the second beam 2132 may be a B-pillar beam, and the third beam 2133 may be a C-pillar beam. The top structural member 213 may also include a sheet metal member disposed between the first and second cross beams 2131, 2132, and a sheet metal member disposed between the second and third cross beams 2132, 2133. When the first feeding radiator 31 is disposed on the top structural member 213, the first feeding radiator 31 may be located on one of the first beam 2131, the second beam 2132 and the third beam 2133.
Of course, the installation position of the first feeding radiator 31 is not limited to the above-described embodiment, and the embodiment of the present application does not specifically limit the installation position of the first feeding radiator 31.
In summary, through the distributed arrangement of the first feeding radiator 31 and the second feeding radiator 32, one of the two feeding radiators 14 is convenient to transmit and receive signals in the forward direction of the vehicle, and the other of the two feeding radiators 14 is convenient to transmit and receive signals in the backward direction of the vehicle, when the second feeding radiator 32 has an antenna gain defect, the first feeding radiator 31 can compensate the antenna gain defect, which is beneficial to avoiding the antenna gain defect generated due to shielding of the vehicle body 20, and improving the communication performance of the whole vehicle.
The embodiment of the present application also provides another vehicle, and referring to fig. 13 and 14, the vehicle may include a first feeding radiator 31 and a second feeding radiator 32. The first and second feeding radiators 31 and 32 may be mounted on the frame 201. As described in the above embodiment, the first and second feeding radiators 31 and 32 are mounted on the frame 201, it is understood that the first and second feeding radiators 31 and 32 may be mounted inside the frame 201, or the first and second feeding radiators 31 and 32 may be mounted on the outer surface of the frame 201, or the first and second feeding radiators 31 and 32 may be mounted on the inner surface of the frame 201. The mounting manner of the first feeding radiator 31 and the second feeding radiator 32 may be as described in the above embodiments, and will not be described herein. By mounting the first and second feeding radiators 31 and 32 on the frame 201, it is advantageous to avoid the vehicle body 20 from shielding the first and second feeding radiators 31 and 32.
Wherein both the first feed radiator 31 and the second feed radiator 32 are coupled to the communication assembly 10. Here, the feeding point of the first feeding radiator 31 and the feeding point of the second feeding radiator 32 may each be coupled with a radio frequency chip within the communication assembly 10. The second feed radiator 32 and the first feed radiator 31 have the same operating frequency band, and the first feed radiator 31 and the second feed radiator 32 together constitute an omni-directional antenna. The omni-directional antenna may be understood as described in the above embodiments, and will not be described here again.
Wherein the distance between the first feeding radiator 31 and the second feeding radiator 32 is greater than 40cm. Through the arrangement, a certain distance is reserved between the first feed radiator 31 and the second feed radiator 32, so that the first feed radiator 31 and the second feed radiator 32 can be distributed on the vehicle body 20 in a relatively dispersed manner, and the antenna formed by the first feed radiator 31 and the second feed radiator 32 is favorable for uniform radiation on a directional diagram.
Through the above arrangement, when one feed radiator 14 has an antenna gain defect, the other feed radiator 14 can compensate for the antenna gain defect, so that the first feed radiator 31 and the second feed radiator 32 jointly form an omni-directional coverage effect, and the communication performance of the whole vehicle is improved.
For example, in some examples, the communication assembly 10 may include a cockpit domain controller (Cockpit Domain Controller, CDC), the first feed radiator 31 may be coupled with the communication module 11 in the cockpit domain controller through a first radio frequency path 13, and the second feed radiator 32 may be coupled with the communication module 11 in the cockpit domain controller through a second radio frequency path 13. The cabin domain controller may be connected to the internet of vehicles terminal box by a cable 40 so that the cabin domain controller may implement data interaction with the internet of vehicles terminal box. With continued reference to fig. 14, the cabin domain controller may also include other components. For example, the cabin domain controller may further include a GNSS (Global Navigation SATELLITE SYSTEM) antenna and a GNSS module, the GNSS antenna being coupled with the GNSS module to enable positioning of the entire vehicle. And, the cabin domain controller may also include a Wi-Fi/BT module that may be used to implement a communication connection with an in-vehicle audio system, display system, or the like. By arranging the first feeding radiator 31 and the second feeding radiator 32, the network signal intensity in the whole car can be improved, and the stability and reliability of network connection are improved.
Further, the cabin domain controller may be further coupled to an Ultra Wideband (UWB) module, and the first and second power feeding radiators 31 and 32 may identify a key located near the vehicle body 20, or the first and second power feeding radiators 31 and 32 may detect a living body located in the vehicle body 20, so that the vehicle may implement man-machine interaction inside and outside the vehicle, for example, unlock the vehicle and start the engine when the key or the living body approaches the vehicle.
In some embodiments, in a plane parallel to the chassis 202 of the vehicle, the first feed radiator 31 may be configured to act as an antenna and transmit and receive signals within the first coverage area M1, the second feed radiator 32 may be configured to act as an antenna and transmit and receive signals within the second coverage area M2, and at least a portion of the coverage angle of the first coverage area M1 and at least a portion of the coverage angle of the second coverage area M2 may be at a peripheral angle to each other. Here, the "coverage area" may be understood as that when the antenna is a cellular antenna, the gain of the antenna in the coverage area may be above-5 dBi, and the minimum gain value of the antenna in the coverage area is-8 dBi, and when the antenna is a satellite 80 antenna, the gain of the antenna in the coverage area may be above-5 dBic.
Illustratively, the first feed radiator 31 may be for use as a first antenna, which may be a directional high gain antenna, and which may transmit and receive signals within the first coverage area M1. Similarly, the second feed radiator 32 may be used as a second antenna, which may be a directional high gain antenna, and which may transmit and receive signals within the second coverage area M2.
For example, the coverage angle of the first coverage area may be 180 °, the coverage angle of the second coverage area M2 may be 180 °, and the two coverage areas may cover 360 ° after being superimposed. Or the coverage angle of the first coverage area may be 180 °, the coverage angle of the second coverage area M2 may be 270 °, the first coverage area M1 and the second coverage area M2 may have overlapping areas, and the two coverage areas may overlap to cover 360 °. Because the coverage angle of at least part of the first coverage area M1 and the coverage angle of at least part of the second coverage area M2 are peripheral angles, the first feeding radiator 31 and the second feeding radiator 32 jointly form an omni-directional coverage effect, and the communication performance of the whole vehicle is improved.
Or in some examples the first feed radiator 31 may be used as a first antenna, which may also be an omni-directional antenna. Similarly, the second feed radiator 32 may be used as a second antenna, which may also be an omni-directional antenna. In this case, the first antenna and the second antenna may together form an omni-directional antenna.
In some embodiments, the distance between the first feeding radiator 31 and the second feeding radiator 32 may be greater than or equal to 1 meter. For example, the distance between the first feeding radiator 31 and the second feeding radiator 32 may be 1 meter, 1.2 meters, 1.3 meters, or 1.5 meters. Through the arrangement, the antenna gain defect caused by shielding of the vehicle body 20 is further avoided, so that the first feed radiator 31 and the second feed radiator 32 jointly form an omni-directional coverage effect, and the communication performance of the whole vehicle is further improved.
As shown in fig. 13 and 15, the frame 201 may include a top portion 21, a first side portion 22, and a second side portion 23, the top portion 21 extending from a head of the vehicle body 20 to a tail of the vehicle body 20, the first side portion 22 and the second side portion 23 being arranged along a first direction Y, the top portion 21 being located between the first side portion 22 and the second side portion 23, the first direction Y being parallel to a chassis 202 of the vehicle and perpendicular to a direction from the head of the vehicle body 20 toward the tail of the vehicle body 20. Illustratively, the roof 21 may include a front cover 211, a front windshield 212, a roof structural member 213, a rear windshield 214, and a rear cover 215 arranged in this order from the head of the vehicle body 20 toward the tail of the vehicle body 20.
In some embodiments, the first feeding radiator 31 may be disposed at the top 21, and the second feeding radiator 32 may be disposed at the top 21. By arranging the first feeding radiator 31 and the second feeding radiator 32 on the top 21 of the frame 201, one of the two feeding radiators 14 is convenient to transmit and receive signals in the forward direction of the vehicle, and the other of the two feeding radiators 14 is convenient to transmit and receive signals in the backward direction of the vehicle, so that the first feeding radiator 31 and the second feeding radiator 32 jointly form an omni-directional coverage effect, and the communication performance of the whole vehicle is improved.
Further, as shown in FIGS. 13 and 15, the first feeding radiator 31 may be provided on the top 21, including a first antenna may be provided on one of the front windshield 212, the top structural member 213, the rear windshield 214, and the rear cover 215. Similarly, a second feed radiator 32 may be provided on the roof 21, including a first antenna may be provided on one of the front windshield 212, the roof structure 213, the rear windshield 214, and the rear cover 215. Since neither the first feeding radiator 31 nor the second feeding radiator 32 is disposed on the front cover 211 of the frame 201, it is advantageous to avoid the first feeding radiator 31 and the second feeding radiator 32 from affecting the aesthetic property of the whole vehicle and from affecting the windage of the whole vehicle.
When the first feeding radiator 31 and the second feeding radiator 32 are both disposed on the top 21, the first feeding radiator 31 and the second feeding radiator 32 may be disposed on different structural members of the top 21, so as to ensure a certain distance between the first feeding radiator 31 and the second feeding radiator 32, thereby ensuring the effect of transmitting and receiving signals of the omni-directional antenna formed by the first feeding radiator 31 and the second feeding radiator 32 together. For example, when the first feeding radiator 31 is located on the front windshield 212 of the roof 21, the second feeding radiator 32 may be located on the roof 21 of the frame 201 other than the front windshield 212, for example, the second feeding radiator 32 may be located on one of the roof structural member 213, the rear windshield 214, and the rear cover 215.
The roof structure 213 may have different structural components due to the different types of vehicles. In some embodiments, as shown in fig. 13, the vehicle may be a sedan type. The roof structure 213 may include a first cross member 2131, a second cross member 2132, and a third cross member 2133 arranged in this order from the head of the vehicle body 20 toward the tail of the vehicle body 20. Wherein, the first beam 2131 may be an a-pillar beam, the second beam 2132 may be a B-pillar beam, and the third beam 2133 may be a C-pillar beam. The top structural member 213 may also include a first sheet metal member disposed between the first and second cross beams 2131, 2132, and a second sheet metal member disposed between the second and third cross beams 2132, 2133.
The first feeding radiator 31 may be disposed on one of the first, second and third beams 2131, 2132 and 2133 when the first feeding radiator 31 is disposed on the top structural member 213, and the second feeding radiator 32 may be disposed on one of the first, second and third beams 2131, 2132 and 2133 when the second feeding radiator 32 is disposed on the top structural member 213. As in the previous embodiments, the first and second feed radiators 31, 32 may be located on different structures of the top structure 213. For example, when the first feeding radiator 31 is located on the first beam 2131 of the top structural member 213, the second feeding radiator 32 may be located on the top structural member 213 of the frame 201 other than the first beam 2131, for example, the second feeding radiator 32 may be located on the second beam 2132 or the third beam 2133.
In some embodiments, as shown in fig. 15, when the vehicle is of the SUV (sport utility vehicle) type, the roof structure 213 may include a first cross beam 2131, a roof glass 2135, and a spoiler 2136 arranged in this order from the head of the vehicle body 20 toward the tail of the vehicle body 20, the roof structure 213 may further include a first luggage rack 2137 and a second luggage rack 2138 arranged along the first direction Y, the roof glass 2135 may be positioned between the first luggage rack 2137 and the second luggage rack 2138, and both the first luggage rack 2137 and the second luggage rack 2138 may be positioned between the first cross beam 2131 and the spoiler 2136.
When the first feeding radiator 31 is located at the top structural member 213, the first feeding radiator 31 may be disposed on one of the first beam 2131, a portion of the roof glass 2135 near the first beam 2131, the first luggage rack 2137, the second luggage rack 2138, a portion of the roof glass 2135 near the spoiler 2136, and the spoiler 2136. When the second feeding radiator 32 is located at the top structural member 213, the second feeding radiator 32 may be disposed on one of the first beam 2131, a portion of the roof glass 2135 near the first beam 2131, the first luggage rack 2137, the second luggage rack 2138, a portion of the roof glass 2135 near the spoiler 2136, and the spoiler 2136. As in the previous embodiments, the first and second feed radiators 31, 32 may be located on different structures of the top structure 213. For example, when the first feeding radiator 31 is located on the first beam 2131 of the top structural member 213, the second feeding radiator 32 may be located on the top structural member 213 of the frame 201 other than the first beam 2131, for example, the second feeding radiator 32 may be located on one of the spot glass 2135 near the first beam 2131, the first luggage rack 2137, the second luggage rack 2138, the spot glass 2135 near the spoiler 2136, and the spoiler 2136.
In some embodiments, as shown in fig. 16 and 17, the first feeding radiator 31 may be disposed at the first side 22, and the second feeding radiator 32 may be disposed at the second side 23. The first side portion 22 may include a first rear mirror 221, a first front door 224, a first rear door 225, and a first triangular window 223, which are sequentially arranged from the head of the vehicle body 20 toward the rear of the vehicle body 20, and similarly, the second side portion 23 may include a second rear mirror 231, a second front door 234, a second rear door 235, and a second triangular window 233, which are sequentially arranged from the head of the vehicle body 20 toward the rear of the vehicle body 20. Through the above arrangement, one of the two feeding radiators 14 can be mainly used for receiving and transmitting signals in the left direction of the vehicle, and the other of the two feeding radiators 14 can be mainly used for receiving and transmitting signals in the right direction of the vehicle, so that the first feeding radiator 31 and the second feeding radiator 32 jointly form an omni-directional coverage effect, and the communication performance of the whole vehicle is improved.
In some embodiments, the first feed radiator 31 is disposed on the first side 22, including the first feed radiator 31 disposed on one of the first mirror 221 and the first triangular window 223, and the second feed radiator 32 is disposed on the second side 23, including the second feed radiator 32 disposed on one of the second mirror 231 and the second triangular window 233. The first rearview mirror 221 may be a left rearview mirror of the frame 201, the second rearview mirror 231 may be a right rearview mirror of the frame 201, or the first rearview mirror 221 may be a right rearview mirror of the frame 201, and the second rearview mirror 231 may be a left rearview mirror of the frame 201. The feed radiator is arranged on the rearview mirror, and can be understood as being arranged in the shell of the rearview mirror. The triangular window may be substantially triangular, or may be other shapes, which are not limited in this embodiment of the present application. The first and second triangular windows 223 and 233 may be triangular windows adjacent to the C-pillar of the frame 201 to avoid the first and second feeding radiators 31 and 32 from blocking the line of sight of the main driver or co-driver.
For example, the first and second feeding radiators 31 and 32 may be symmetrically disposed with respect to the central axis S of the vehicle body 20. For example, as shown in fig. 16, when the first feeding radiator 31 is disposed at the first rear view mirror 221, the second feeding radiator 32 may be disposed at the second rear view mirror 231. Or as shown in fig. 17, when the first feeding radiator 31 is disposed at the first triangular window 223, the second feeding radiator 32 may be disposed at the second triangular window 233. By the above arrangement, the regularity of the distribution positions of the first and second feeding radiators 31 and 32 on the vehicle body 20 is further improved, and the assembly efficiency of the first and second feeding radiators 31 and 32 is improved.
In some embodiments, as shown in fig. 18, a first feeding radiator 31 is disposed at the top 21 and a second feeding radiator 32 is disposed at the first side 22 or the second side 23. As in the above-described embodiments, the first feeding radiator 31 may be disposed on one of the front windshield 212, the roof structure 213, the rear windshield 214, and the rear cover 215, and the second feeding radiator 32 may be disposed on one of the first rear mirror 221, the first triangular window 223, the second rear mirror 231, and the second triangular window 233.
Through the above arrangement, one of the two power feeding radiators 14 can transmit and receive signals in the left front direction of the vehicle, the other of the two power feeding radiators 14 can transmit and receive signals in the right rear direction of the vehicle, or one of the two power feeding radiators 14 can transmit and receive signals in the right front direction of the vehicle, and the other of the two power feeding radiators 14 can transmit and receive signals in the left rear direction of the vehicle, so that the first power feeding radiator 31 and the second power feeding radiator 32 jointly form an omni-directional coverage effect, and the communication performance of the whole vehicle is improved.
The foregoing is merely illustrative of the embodiments of the present application, and the present application is not limited thereto, and any person skilled in the art will recognize that changes and substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (19)

1.一种车辆,其特征在于,包括:1. A vehicle, comprising: 车体,所述车体包括相互连接的框架和底盘;a vehicle body comprising a frame and a chassis connected to each other; 第一馈电辐射体,安装于所述框架上;A first feeding radiator is mounted on the frame; 通信组件,安装于所述框架上,或者安装于所述框架和所述底盘围设的空间内,所述通信组件包括:多个馈电辐射体、切换模块和通信模块,所述多个馈电辐射体的工作频段至少部分相同,所述多个馈电辐射体的数量大于所述第一馈电辐射体的数量,所述多个馈电辐射体中的至少一个为第二馈电辐射体,所述第二馈电辐射体和所述第一馈电辐射体的工作频段相同,所述第二馈电辐射体和至少一个所述第一馈电辐射体之间的距离大于40cm,所述切换模块的公共端口与所述通信模块耦合,所述切换模块的第一端口与所述第二馈电辐射体耦合,所述切换模块的第二端口通过线缆与所述第一馈电辐射体耦合。A communication component is installed on the frame or in the space enclosed by the frame and the chassis, the communication component comprising: a plurality of feed radiators, a switching module, and a communication module, the operating frequency bands of the plurality of feed radiators being at least partially the same, the number of the plurality of feed radiators being greater than the number of the first feed radiators, at least one of the plurality of feed radiators being a second feed radiator, the second feed radiator and the first feed radiator having the same operating frequency band, the distance between the second feed radiator and at least one of the first feed radiators being greater than 40 cm, the common port of the switching module being coupled to the communication module, the first port of the switching module being coupled to the second feed radiator, and the second port of the switching module being coupled to the first feed radiator via a cable. 2.根据权利要求1所述的车辆,其特征在于,所述通信模块包括控制单元,且所述通信模块具有初始工作状态和第一工作状态,所述控制单元用于,在所述初始工作状态下,控制所述切换模块使所述通信模块和所述第二馈电辐射体耦合;所述控制单元还用于,在所述第一工作状态下,控制所述切换模块使所述通信模块和所述第一馈电辐射体耦合。2. The vehicle according to claim 1, characterized in that the communication module includes a control unit, and the communication module has an initial working state and a first working state, the control unit is used to, in the initial working state, control the switching module to couple the communication module and the second feeding radiator; the control unit is also used to, in the first working state, control the switching module to couple the communication module and the first feeding radiator. 3.根据权利要求2所述的车辆,其特征在于,所述通信模块还包括检测单元,所述检测单元用于,获取所述第一馈电辐射体的信号强度和所述第二馈电辐射体的信号强度;3. The vehicle according to claim 2, wherein the communication module further comprises a detection unit, wherein the detection unit is configured to obtain the signal strength of the first feeding radiator and the signal strength of the second feeding radiator; 所述通信模块用于,在所述第二馈电辐射体的信号强度小于预设值,且所述第二馈电辐射体的信号强度小于所述第一馈电辐射体的信号强度时,从所述初始工作状态切换至所述第一工作状态。The communication module is configured to switch from the initial working state to the first working state when the signal strength of the second feeding radiator is less than a preset value and the signal strength of the second feeding radiator is less than the signal strength of the first feeding radiator. 4.根据权利要求2所述的车辆,其特征在于,所述通信模块还包括检测单元,所述检测单元用于获取卫星和车体之间的相对位姿信息,所述相对位姿信息用于表示在平行于所述车辆底面的平面内,所述车体相对卫星的位置和姿态;4. The vehicle according to claim 2, wherein the communication module further comprises a detection unit, wherein the detection unit is configured to obtain relative position information between the satellite and the vehicle body, wherein the relative position information is configured to represent the position and attitude of the vehicle body relative to the satellite in a plane parallel to the bottom surface of the vehicle; 所述通信模块用于,根据所述相对位姿信息,从所述初始工作状态切换至所述第一工作状态。The communication module is used to switch from the initial working state to the first working state according to the relative posture information. 5.根据权利要求1-4中任一项所述的车辆,其特征在于,所述第一馈电辐射体和所述第二馈电辐射体共同构成全向天线。5 . The vehicle according to claim 1 , wherein the first feeding radiator and the second feeding radiator together constitute an omnidirectional antenna. 6.根据权利要求1-5中任一项所述的车辆,其特征在于,所述多个馈电辐射体中的部分形成一个主集天线,所述多个馈电辐射体中的部分形成至少一个分集天线,所述第一馈电辐射体与所述主集天线通过所述切换模块与所述通信模块耦合。6. The vehicle according to any one of claims 1 to 5, characterized in that some of the multiple feed radiators form a main antenna, some of the multiple feed radiators form at least one diversity antenna, and the first feed radiator and the main antenna are coupled to the communication module through the switching module. 7.根据权利要求1-6中任一项所述的车辆,其特征在于,在平行于所述车辆的底面的平面内,所述第一馈电辐射体用于作为天线使用并收发第一覆盖区域内的信号,所述第二馈电辐射体用于作为天线使用并收发第二覆盖区域内的信号,所述第一覆盖区域的覆盖角度小于所述第二覆盖区域的覆盖角度。7. The vehicle according to any one of claims 1 to 6, characterized in that, in a plane parallel to the bottom surface of the vehicle, the first feed radiator is used as an antenna and transmits and receives signals within a first coverage area, and the second feed radiator is used as an antenna and transmits and receives signals within a second coverage area, and the coverage angle of the first coverage area is smaller than the coverage angle of the second coverage area. 8.根据权利要求1-7中任一项所述的车辆,其特征在于,所述框架包括由所述车体的车头向所述车体的车尾依次排布的前盖、前挡风玻璃、顶部结构件、后挡风玻璃以及后盖;8. The vehicle according to any one of claims 1 to 7, wherein the frame comprises a front cover, a front windshield, a top structure, a rear windshield, and a rear cover arranged in sequence from the front of the vehicle body to the rear of the vehicle body; 所述通信组件位于所述顶部结构件内部,所述第一馈电辐射体设置于所述前挡风玻璃或所述后挡风玻璃上。The communication component is located inside the top structure, and the first feeding radiator is arranged on the front windshield or the rear windshield. 9.根据权利要求1-7中任一项所述的车辆,其特征在于,所述框架包括由所述车体的车头向所述车体的车尾依次排布的前盖、前挡风玻璃、顶部结构件、后挡风玻璃以及后盖;9. The vehicle according to any one of claims 1 to 7, wherein the frame comprises a front cover, a front windshield, a top structure, a rear windshield, and a rear cover arranged in sequence from the front of the vehicle body to the rear of the vehicle body; 所述通信组件位于所述后盖的一侧,所述第一馈电辐射体设置于所述前挡风玻璃或所述顶部结构件上。The communication component is located on one side of the rear cover, and the first feeding radiator is arranged on the front windshield or the top structural member. 10.根据权利要求1-9中任一项所述的车辆,其特征在于,所述通信组件包括车联网终端盒子。10. The vehicle according to any one of claims 1 to 9, characterized in that the communication component comprises a vehicle networking terminal box. 11.一种车辆,其特征在于,包括:11. A vehicle, comprising: 车体,包括相互连接的框架和底盘;the vehicle body, comprising the interconnected frame and chassis; 通信组件,安装于所述框架和所述底盘围设的空间内;A communication component is installed in the space enclosed by the frame and the chassis; 第一馈电辐射体和第二馈电辐射体,安装于所述框架上,所述第一馈电辐射体和所述第二馈电辐射体之间的距离大于40cm,所述第一馈电辐射体和所述第二馈电辐射体均与所述通信组件耦合,第二馈电辐射体和第一馈电辐射体的工作频段相同,且所述第一馈电辐射体和所述第二馈电辐射体共同构成全向天线。A first feed radiator and a second feed radiator are installed on the frame, the distance between the first feed radiator and the second feed radiator is greater than 40 cm, the first feed radiator and the second feed radiator are both coupled to the communication component, the second feed radiator and the first feed radiator have the same operating frequency band, and the first feed radiator and the second feed radiator together constitute an omnidirectional antenna. 12.根据权利要求11所述的车辆,其特征在于,12. The vehicle according to claim 11, characterized in that 在平行于所述车辆的底盘的平面内,所述第一馈电辐射体用于作为天线使用并收发第一覆盖区域内的信号,所述第二馈电辐射体用于作为天线使用并收发第二覆盖区域内的信号,至少部分所述第一覆盖区域的覆盖角度与至少部分所述第二覆盖区域的覆盖角度互为周角。In a plane parallel to the chassis of the vehicle, the first feed radiator is used as an antenna to transmit and receive signals within a first coverage area, and the second feed radiator is used as an antenna to transmit and receive signals within a second coverage area. The coverage angle of at least part of the first coverage area and the coverage angle of at least part of the second coverage area are mutually angled. 13.根据权利要求11或12所述的车辆,其特征在于,所述第一馈电辐射体和所述第二馈电辐射体之间的距离大于或者等于1米。13 . The vehicle according to claim 11 , wherein a distance between the first feeding radiator and the second feeding radiator is greater than or equal to 1 meter. 14.根据权利要求11-13中的任一项所述的车辆,其特征在于,所述框架包括顶部、第一侧部以及第二侧部,所述顶部由所述车体的车头延伸至所述车体的车尾,所述第一侧部和所述第二侧部沿第一方向排布,所述顶部位于所述第一侧部和所述第二侧部之间,所述第一方向平行于所述车辆的底盘,且垂直于由所述车体的车头指向所述车体的车尾的方向;14. The vehicle according to any one of claims 11 to 13, wherein the frame comprises a top portion, a first side portion, and a second side portion, the top portion extending from the front of the vehicle body to the rear of the vehicle body, the first side portion and the second side portion being arranged along a first direction, the top portion being located between the first side portion and the second side portion, the first direction being parallel to the chassis of the vehicle and perpendicular to a direction from the front of the vehicle body to the rear of the vehicle body; 所述第一馈电辐射体设置于所述顶部,且所述第二馈电辐射体设置于所述顶部。The first feeding radiator is disposed on the top, and the second feeding radiator is disposed on the top. 15.根据权利要求14所述的车辆,其特征在于,所述顶部包括由所述车体的车头向所述车体的车尾依次排布的前盖、前挡风玻璃、顶部结构件、后挡风玻璃以及后盖;15. The vehicle according to claim 14, wherein the roof comprises a front cover, a front windshield, a top structure, a rear windshield, and a rear cover arranged in sequence from the front of the vehicle body to the rear of the vehicle body; 所述第一馈电辐射体设置于所述顶部,包括:所述第一馈电辐射体设置于所述前挡风玻璃、所述顶部结构件、所述后挡风玻璃以及所述后盖中的一个上;The first feeding radiator is arranged on the top, comprising: the first feeding radiator is arranged on one of the front windshield, the top structure, the rear windshield and the rear cover; 所述第二馈电辐射体设置于所述顶部,包括:所述第二馈电辐射体设置于所述前挡风玻璃、所述顶部结构件、所述后挡风玻璃以及所述后盖中的一个上。The second feeding radiator is arranged on the top, including: the second feeding radiator is arranged on one of the front windshield, the top structure, the rear windshield and the rear cover. 16.根据权利要求11-13中的任一项所述的车辆,其特征在于,所述框架包括顶部、第一侧部以及第二侧部,所述顶部由所述车体的车头延伸至所述车体的车尾,所述第一侧部和所述第二侧部沿第一方向排布,所述顶部位于所述第一侧部和所述第二侧部之间,所述第一方向平行于所述车辆的底盘,且垂直于由所述车体的车头指向所述车体的车尾的方向;16. The vehicle according to any one of claims 11 to 13, wherein the frame comprises a top portion, a first side portion, and a second side portion, the top portion extending from the front of the vehicle body to the rear of the vehicle body, the first side portion and the second side portion being arranged along a first direction, the top portion being located between the first side portion and the second side portion, the first direction being parallel to the chassis of the vehicle and perpendicular to a direction pointing from the front of the vehicle body to the rear of the vehicle body; 所述第一馈电辐射体设置于所述第一侧部,且所述第二馈电辐射体设置于所述第二侧部。The first feeding radiator is disposed on the first side portion, and the second feeding radiator is disposed on the second side portion. 17.根据权利要求16所述的车辆,其特征在于,所述第一侧部包括由所述车体的车头向所述车体的车尾依次排布的第一后视镜、第一前车门、第一后车门以及第一三角窗,所述第二侧部包括由所述车体的车头向所述车体的车尾依次排布的第二后视镜、第二前车门、第二后车门以及第二三角窗;17. The vehicle according to claim 16, wherein the first side portion comprises a first rearview mirror, a first front door, a first rear door, and a first triangular window arranged in sequence from the front of the vehicle body to the rear of the vehicle body, and the second side portion comprises a second rearview mirror, a second front door, a second rear door, and a second triangular window arranged in sequence from the front of the vehicle body to the rear of the vehicle body; 所述第一馈电辐射体设置于所述第一侧部,包括:所述第一馈电辐射体设置于所述第一后视镜和所述第一三角窗中的一个上;The first feeding radiator is provided on the first side portion, comprising: the first feeding radiator is provided on one of the first rearview mirror and the first triangular window; 所述第二馈电辐射体设置于所述第二侧部,包括:所述第二馈电辐射体设置于所述第二后视镜和所述第二三角窗中的一个上。The second feeding radiator is arranged on the second side portion, including: the second feeding radiator is arranged on one of the second rearview mirror and the second triangular window. 18.根据权利要求11-13中的任一项所述的车辆,其特征在于,所述框架包括顶部、第一侧部以及第二侧部,所述顶部由所述车体的车头延伸至所述车体的车尾,所述第一侧部和所述第二侧部沿第一方向排布,所述顶部位于所述第一侧部和所述第二侧部之间,所述第一方向平行于所述车辆的底盘,且垂直于由所述车体的车头指向所述车体的车尾的方向;18. The vehicle according to any one of claims 11 to 13, wherein the frame comprises a top portion, a first side portion, and a second side portion, the top portion extending from the front of the vehicle body to the rear of the vehicle body, the first side portion and the second side portion being arranged along a first direction, the top portion being located between the first side portion and the second side portion, the first direction being parallel to the chassis of the vehicle and perpendicular to a direction from the front of the vehicle body to the rear of the vehicle body; 所述第一馈电辐射体设置于所述顶部,且所述第二馈电辐射体设置于所述第一侧部或所述第二侧部。The first feeding radiator is disposed on the top, and the second feeding radiator is disposed on the first side or the second side. 19.根据权利要求11-18中任一项所述的车辆,其特征在于,所述通信组件包括智能座舱域控制器。19. The vehicle according to any one of claims 11 to 18, wherein the communication component comprises an intelligent cockpit domain controller.
CN202410482528.0A 2024-04-19 2024-04-19 vehicle Pending CN120834836A (en)

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