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CN111491273A - Communication method for road side unit and vehicle-mounted unit - Google Patents

Communication method for road side unit and vehicle-mounted unit Download PDF

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CN111491273A
CN111491273A CN202010232191.XA CN202010232191A CN111491273A CN 111491273 A CN111491273 A CN 111491273A CN 202010232191 A CN202010232191 A CN 202010232191A CN 111491273 A CN111491273 A CN 111491273A
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vehicle
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parking space
unit
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CN111491273B (en
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傅晓亮
陈惠明
何伟国
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Hubei Fanjing Engineering Construction Co ltd
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Shenzhen Zhongke Chegang Co ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/44—Services 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]
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
    • G07B15/02—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points taking into account a variable factor such as distance or time, e.g. for passenger transport, parking systems or car rental systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/14—Traffic control systems for road vehicles indicating individual free spaces in parking areas
    • G08G1/141—Traffic control systems for road vehicles indicating individual free spaces in parking areas with means giving the indication of available parking spaces
    • G08G1/142—Traffic control systems for road vehicles indicating individual free spaces in parking areas with means giving the indication of available parking spaces external to the vehicles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/03—Protecting confidentiality, e.g. by encryption
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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Abstract

本发明提供了一种用于路侧单元和车载单元的通信方法。包括，基于路侧单元，当目标车位处存在目标车辆时，向车载单元发送基于路侧单元的加密模块进行加密处理后的通信连接请求；基于车载单元，向路侧单元反馈基于通信连接请求的连接结果；基于路侧单元，当车载结果为连接成功时，表明路侧单元与车载单元握手成功，此时，识别车载单元基于车载单元加密模块进行加密处理的的唯一识别信息，并对目标车辆在目标车位的停车时间进行计时。通过发送加密的通信连接请求，且进行加密的唯一识别信息的传输，提高读取信息的可靠性，避免信息泄露，提高其的安全性。

Figure 202010232191

The present invention provides a communication method for a roadside unit and an onboard unit. Including, based on the roadside unit, when there is a target vehicle at the target parking space, sending a communication connection request based on the encryption module of the roadside unit after encryption processing to the vehicle-mounted unit; based on the vehicle-mounted unit, feedback based on the communication connection request to the roadside unit. Connection result; based on the roadside unit, when the on-board result is a successful connection, it indicates that the roadside unit and the on-board unit shake hands successfully. At this time, the unique identification information encrypted by the on-board unit based on the on-board unit encryption module is identified, and the target vehicle is identified. The parking time in the target parking space is counted. By sending an encrypted communication connection request and transmitting the encrypted unique identification information, the reliability of reading information is improved, information leakage is avoided, and its security is improved.

Figure 202010232191

Description

一种用于路侧单元和车载单元的通信方法A communication method for roadside unit and vehicle-mounted unit

技术领域technical field

本发明涉及车辆通信技术领域，特别涉及一种用于路侧单元和车载单元的通信方法。The present invention relates to the technical field of vehicle communication, in particular to a communication method for a roadside unit and a vehicle-mounted unit.

背景技术Background technique

停车场是供车辆停放之场所，现在的停车场有仅画停车格而无人管理及收费的简易停车场，亦有配有出入栏口、泊车管理员及计时收款员的收费停车场。而且，在收费的过程中，需要对车辆身份信息进行识别，并对车辆的停车时间进行记录，但是，一般对车辆的身份信息进行识别的过程中，是通过读卡器和电子标签，直接进行的信息射频读取，其直接读取可能会使得信息泄露，因此，设置了一种基于路侧单元和车载单元的通信方法。The parking lot is a place for vehicles to park. At present, there are simple parking lots with only parking spaces and no management and charging, and there are also paid parking lots with entrance and exit gates, parking administrators and timing cashiers. . Moreover, in the process of charging, it is necessary to identify the identity information of the vehicle and record the parking time of the vehicle. The information is read by radio frequency, and its direct reading may cause information leakage. Therefore, a communication method based on the roadside unit and the on-board unit is set up.

发明内容SUMMARY OF THE INVENTION

本发明提供一种用于路侧单元和车载单元的通信方法，用以通过发送加密的通信连接请求，且进行加密的唯一识别信息的传输，提高读取信息的可靠性，避免信息泄露，提高其的安全性。The present invention provides a communication method for a roadside unit and a vehicle-mounted unit, which is used to improve the reliability of reading information, avoid information leakage, and improve the reliability of reading information by sending an encrypted communication connection request and transmitting encrypted unique identification information. its security.

本发明实施例提供一种用于路侧单元和车载单元的通信方法，包括：An embodiment of the present invention provides a communication method for a roadside unit and a vehicle-mounted unit, including:

基于所述路侧单元，当目标车位处存在目标车辆时，向所述车载单元发送基于路侧单元加密模块进行加密处理后的通信连接请求；Based on the roadside unit, when there is a target vehicle at the target parking space, send a communication connection request encrypted based on the roadside unit encryption module to the vehicle-mounted unit;

基于所述车载单元，向所述路侧单元反馈基于所述通信连接请求的连接结果；Based on the on-board unit, feeding back a connection result based on the communication connection request to the roadside unit;

基于所述路侧单元，当所述车载单元结果为连接成功时，表明所述路侧单元与所述车载单元握手成功，此时，识别所述车载单元基于车载单元加密模块进行加密处理的的唯一识别信息，并对所述目标车辆在所述目标车位的停车时间进行计时。Based on the roadside unit, when the result of the on-board unit is that the connection is successful, it indicates that the roadside unit and the on-board unit have successfully shaken hands. Unique identification information, and time the parking time of the target vehicle in the target parking space.

优选地，所述路侧单元包括：Preferably, the roadside unit includes:

车辆感知模块、车辆识别模块、车辆信息后台通讯模块、路侧单元加密模块和算法；Vehicle perception module, vehicle identification module, vehicle information background communication module, roadside unit encryption module and algorithm;

所述车辆感知模块，用于感知所述目标车位处是否有目标车辆；the vehicle perception module, configured to perceive whether there is a target vehicle in the target parking space;

所述车辆识别模块，用于当所述车辆感知模块感知到存在目标车辆时，基于所述车辆信息后台通讯模块，发送通过路侧单元加密模块进行加密处理的所述通信连接请求，同时，基于所述车辆信息后台通讯模块，接收所述车载单元反馈的连接结果，当握手成功时，识别所述车载单元的唯一识别信息；The vehicle identification module is configured to send the communication connection request encrypted by the roadside unit encryption module based on the vehicle information background communication module when the vehicle perception module perceives the existence of the target vehicle, and at the same time, based on the The vehicle information background communication module receives the connection result fed back by the vehicle-mounted unit, and when the handshake is successful, identifies the unique identification information of the vehicle-mounted unit;

所述路侧单元加密模块，还用于对所述车辆识别模块识别的唯一识别信息进行解密处理；The roadside unit encryption module is further configured to decrypt the unique identification information identified by the vehicle identification module;

所述算法，用于当所述路侧识别单元加模块进行解密处理时，对所述目标车位处的目标车辆的停留时间进行计时，并对计时时长进行时间校正，获得最终停车时间。The algorithm is used for timing the staying time of the target vehicle at the target parking space when the roadside identification unit plus module performs decryption processing, and performing time correction on the timing duration to obtain the final parking time.

优选地，所述车载单元包括：车辆识别码、车辆识别码收发模块、车在单元加密模块；Preferably, the vehicle-mounted unit includes: a vehicle identification code, a vehicle identification code transceiver module, and a vehicle-in-unit encryption module;

所述车辆识别码，用于存储所述目标车辆的唯一标识码；the vehicle identification code for storing the unique identification code of the target vehicle;

所述车载单元加密模块，用于对所述车载单元进行加密处理的通信连接请求进行解密处理，并将解密处理后的通信连接请求传输到所述车辆识别码收发模块；The vehicle-mounted unit encryption module is configured to decrypt the communication connection request encrypted by the vehicle-mounted unit, and transmit the decrypted communication connection request to the vehicle identification code transceiver module;

所述车辆识别码收发模块，用于当握手成功时，基于所述车载单元加密模块，对存储的所述唯一标识码进行加密处理，并将加密处理后的唯一标识码发送到所述车载单元。The vehicle identification code transceiver module is used to encrypt the stored unique identification code based on the vehicle-mounted unit encryption module when the handshake is successful, and send the encrypted unique identification code to the vehicle-mounted unit .

优选地，所述路侧单元，还包括：路侧单元供电模块，用于对所述车辆感知模块、车辆识别模块、车辆信息后台通讯模块、路侧单元加密模块和算法提供电能。Preferably, the roadside unit further comprises: a roadside unit power supply module for providing power to the vehicle perception module, vehicle identification module, vehicle information background communication module, roadside unit encryption module and algorithm.

优选地，所述车载单元，还包括：车载单元供电模块，用于对所述车辆识别码、车辆识别码收发模块、车载单元加密模块提供电能。Preferably, the on-board unit further includes: a power supply module for the on-board unit, which is used to provide power to the vehicle identification code, the vehicle identification code transceiver module, and the on-board unit encryption module.

优选地，还包括：Preferably, it also includes:

基于监测模块对预设区域中的所有目标车位进行监测，并将监测结果传输到所述目标车辆对应的目标用户的用户端进行显示；Monitor all target parking spaces in the preset area based on the monitoring module, and transmit the monitoring results to the user terminal of the target user corresponding to the target vehicle for display;

其中，所述目标车辆与所述用户端进行预先通信绑定。Wherein, the target vehicle and the user terminal are pre-communicated and bound.

优选地，基于监测模块对预设区域中的所有目标车位进行监测的同时，还监测所述目标车位的进入线对应的区域范围内是否存在目标车辆；Preferably, while monitoring all the target parking spaces in the preset area based on the monitoring module, it also monitors whether there is a target vehicle within the area corresponding to the entry line of the target parking space;

若存在，确定所述目标车辆的车辆信息，同时，对所述目标车辆中的目标驾驶员进行监测，基于驾驶员数据库，确定所述目标驾驶员的驾驶信息；If there is, determine the vehicle information of the target vehicle, at the same time, monitor the target driver in the target vehicle, and determine the driving information of the target driver based on the driver database;

根据所述监测模块的监测范围，对所述目标车辆的运动状态进行监测获取，并基于监测获取的运动状态对所诉驾驶信息进行修正；According to the monitoring range of the monitoring module, monitor and obtain the motion state of the target vehicle, and revise the driving information based on the motion state obtained by monitoring;

获取所述目标区域中的目标车位分布图，将基于监测模块获取的目标车位的监测结果，对占据车位进行显著性标注，并将显著性标注的目标车位分布图发送到所述用户端进行显示；Obtain the target parking space distribution map in the target area, mark the occupied parking spaces based on the monitoring results of the target parking spaces obtained by the monitoring module, and send the significantly marked target parking space distribution map to the user terminal for display ;

同时，当监测的区域范围内的目标车辆的车辆个数小于所述预设区域对应的空闲车位时，根据所述目标车辆与所述空闲车位的实际距离，自动向所述目标驾驶员推荐显著性标注的目标车位分布图中的第一空闲车位，且所述目标驾驶员按照所述推荐的第一空闲车位进行停车；At the same time, when the number of target vehicles within the monitored area is less than the number of free parking spaces corresponding to the preset area, according to the actual distance between the target vehicle and the free parking space, automatically recommend significant the first vacant parking space in the target parking space distribution map marked with sex, and the target driver parks according to the recommended first vacant parking space;

当监测的区域范围内的目标车辆的车辆个数等于所述预设区域对应的空闲车位时，对所述空闲车位的地理位置进行智能判断，获得与所述空闲车位相关的地理优势信息；When the number of vehicles of the target vehicle within the monitored area is equal to the free parking space corresponding to the preset area, intelligently judge the geographic location of the free parking space, and obtain geographical advantage information related to the free parking space;

且根据所述地理优势信息和修正后的驾驶信息，自动向所述目标驾驶员推荐显著性标注的目标车位分布图中的第二空闲车位，且所述目标驾驶员按照所述推荐的第二空闲车位进行停车；And according to the geographical advantage information and the revised driving information, the second vacant parking space in the target parking space distribution map marked with significance is automatically recommended to the target driver, and the target driver follows the recommended second parking space. Free parking spaces for parking;

当监测的区域范围内的目标车辆的车辆个数大于所述预设区域对应的空闲车位时，基于车辆信息和时间轴向与空闲车位个数相等的前预设数目个用户端推荐对应的第三空闲车位，所述目标驾驶员按照所述推荐的第三空闲车位进行停车；When the number of target vehicles within the monitored area is greater than the number of free parking spaces corresponding to the preset area, the first preset number of user-side recommendations corresponding to the number of free parking spaces based on the vehicle information and the time axis Three free parking spaces, the target driver parks according to the recommended third free parking space;

其中，在推荐空闲车位之前，确定所述空闲车位中是否存在观测对象，若存在，对所述观测对象进行预警警示。Wherein, before recommending a free parking space, it is determined whether there is an observation object in the free parking space, and if there is, an early warning warning is given to the observation object.

优选地，所述目标车辆驶入对应的空闲车位的过程中，还包括：Preferably, the process of driving the target vehicle into the corresponding free parking space further includes:

获取所述目标车辆的修正后的驾驶信息，并根据所述驾驶信息判断所述目标车辆是否可被正常停放到所述空闲车位；Acquiring the corrected driving information of the target vehicle, and judging whether the target vehicle can be normally parked in the free parking space according to the driving information;

Figure BDA0002429604900000041
Figure BDA0002429604900000041

其中，S表示目标车辆可被正常停放到空闲车位的停放值；δ表示监测获取的运动状态值，且取值范围为[0,1]，当δ为0时，表示所述目标车辆对应的驾驶员的驾驶技术低；当δ为1时，表示所述目标车辆对应的驾驶员的驾驶技术高；|H|表示未对驾驶信息进行修正之前，对应的驾驶信息的驾驶指标矩阵的驾驶特征值；Among them, S represents the parking value of the target vehicle that can be normally parked in the free parking space; δ represents the motion state value obtained by monitoring, and the value range is [0, 1], when δ is 0, it indicates that the target vehicle corresponds to The driving skill of the driver is low; when δ is 1, it means that the driving skill of the driver corresponding to the target vehicle is high; |H| represents the driving characteristics of the driving index matrix of the corresponding driving information before the driving information is corrected. value;

当所述停放值S大于预设值时，表明所述目标车辆可被正常停放到所述空闲车位，此时对所述空闲车位的边界点进行监测，并实时向所述用户端推送提醒所述目标车辆的车辆边界与所述边界点之间的距离；When the parking value S is greater than the preset value, it indicates that the target vehicle can be normally parked in the free parking space. At this time, the boundary point of the free parking space is monitored, and a real-time push notification is sent to the user terminal. the distance between the vehicle boundary of the target vehicle and the boundary point;

当所述停放值S等于或等于预设值时，如果基于所述用户端接收到所述目标驾驶员输入的指导指令时，基于所述目标车辆的当前位置点A(x,y)和所述空闲车位的位置点集合B(x,y)，获取所述目标车辆的方案值X；When the parking value S is equal to or equal to the preset value, if the user terminal receives the guidance instruction input by the target driver, based on the current position point A(x, y) of the target vehicle and all The location point set B(x, y) of the free parking space, and the solution value X of the target vehicle is obtained;

Figure BDA0002429604900000042
Figure BDA0002429604900000042

其中，n表示位置点集合B中位置点的总个数，且i是n个位置点中的第i个位置点；Bi(x,y)表示第i个位置点对应的坐标点；

Figure BDA0002429604900000043
表示n个位置点对应的平均坐标点；θ-θi表示所述目标车辆对应的当前位置点A与对应的位置集合B中的第i个位置点之间的角度差值；Among them, n represents the total number of location points in the location point set B, and i is the ith location point in the n location points; B i (x, y) represents the coordinate point corresponding to the ith location point;
Figure BDA0002429604900000043
represents the average coordinate point corresponding to n position points; θ-θ i represents the angle difference between the current position point A corresponding to the target vehicle and the i-th position point in the corresponding position set B;

根据所述方案值X，在停车数据库中，调取与所述方案值X相关的停车方案，并向所述用户端推送与所述指导指令相关的停车方案。According to the plan value X, the parking plan related to the plan value X is retrieved from the parking database, and the parking plan related to the guidance instruction is pushed to the client.

本发明的其它特征和优点将在随后的说明书中阐述，并且，部分地从说明书中变得显而易见，或者通过实施本发明而了解。本发明的目的和其他优点可通过在所写的说明书、权利要求书、以及附图中所特别指出的结构来实现和获得。Other features and advantages of the present invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description, claims, and drawings.

下面通过附图和实施例，对本发明的技术方案做进一步的详细描述。The technical solutions of the present invention will be further described in detail below through the accompanying drawings and embodiments.

附图说明Description of drawings

附图用来提供对本发明的进一步理解，并且构成说明书的一部分，与本发明的实施例一起用于解释本发明，并不构成对本发明的限制。在附图中：The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and are used to explain the present invention together with the embodiments of the present invention, and do not constitute a limitation to the present invention. In the attached image:

图1为本发明实施例中一种用于路侧单元和车载单元的通信方法的流程图；1 is a flowchart of a communication method for a roadside unit and a vehicle-mounted unit in an embodiment of the present invention;

图2为本发明实施例中路侧单元的结构图；2 is a structural diagram of a roadside unit in an embodiment of the present invention;

图3为本发明实施例中车载单元的结构图；3 is a structural diagram of a vehicle-mounted unit in an embodiment of the present invention;

图4为本发明实施例中不同地理位置的停车优势的示意图。FIG. 4 is a schematic diagram of parking advantages in different geographic locations in an embodiment of the present invention.

具体实施方式Detailed ways

以下结合附图对本发明的优选实施例进行说明，应当理解，此处所描述的优选实施例仅用于说明和解释本发明，并不用于限定本发明。The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.

本发明实施例提供一种用于路侧单元和车载单元的通信方法，如图1所示，包括：An embodiment of the present invention provides a communication method for a roadside unit and an on-board unit, as shown in FIG. 1 , including:

步骤1：基于所述路侧单元，当目标车位处存在目标车辆时，向所述车载单元发送基于路侧单元加密模块进行加密处理后的通信连接请求；Step 1: Based on the roadside unit, when there is a target vehicle at the target parking space, send a communication connection request encrypted based on the roadside unit encryption module to the vehicle-mounted unit;

步骤2：基于所述车载单元，向所述路侧单元反馈基于所述通信连接请求的连接结果；Step 2: based on the on-board unit, feeding back the connection result based on the communication connection request to the roadside unit;

步骤3：基于所述路侧单元，当所述车载单元结果为连接成功时，表明所述路侧单元与所述车载单元握手成功，此时，识别所述车载单元基于车载单元加密模块进行加密处理的的唯一识别信息，并对所述目标车辆在所述目标车位的停车时间进行计时。Step 3: Based on the roadside unit, when the result of the on-board unit is that the connection is successful, it indicates that the roadside unit and the on-board unit have successfully shaken hands. At this time, it is recognized that the on-board unit is encrypted based on the on-board unit encryption module. The processed unique identification information, and the parking time of the target vehicle in the target parking space is counted.

上述通信连接请求是为了建立路侧单元和车载单元的通信连接。The above communication connection request is for establishing a communication connection between the roadside unit and the vehicle-mounted unit.

上述唯一识别信息，可以是车辆车牌号。The above-mentioned unique identification information may be the vehicle license plate number.

上述技术方案的有益效果是：用以通过发送加密的通信连接请求，且进行加密的唯一识别信息的传输，提高读取信息的可靠性，避免信息泄露，提高其的安全性。The beneficial effects of the above technical solutions are: by sending an encrypted communication connection request and transmitting the encrypted unique identification information, the reliability of reading information is improved, information leakage is avoided, and its security is improved.

本发明实施例提供一种用于路侧单元和车载单元的通信方法，如图2所示，所述路侧单元包括：An embodiment of the present invention provides a communication method for a roadside unit and a vehicle-mounted unit. As shown in FIG. 2 , the roadside unit includes:

车辆感知模块、车辆识别模块、车辆信息后台通讯模块、路侧单元加密模块和算法；Vehicle perception module, vehicle identification module, vehicle information background communication module, roadside unit encryption module and algorithm;

所述车辆感知模块，用于感知所述目标车位处是否有目标车辆；the vehicle perception module, configured to perceive whether there is a target vehicle in the target parking space;

所述车辆识别模块，用于当所述车辆感知模块感知到存在目标车辆时，基于所述车辆信息后台通讯模块，发送通过路侧单元加密模块进行加密处理的所述通信连接请求，同时，基于所述车辆信息后台通讯模块，接收所述车载单元反馈的连接结果，当握手成功时，识别所述车载单元的唯一识别信息；The vehicle identification module is configured to send the communication connection request encrypted by the roadside unit encryption module based on the vehicle information background communication module when the vehicle perception module perceives the existence of the target vehicle, and at the same time, based on the The vehicle information background communication module receives the connection result fed back by the vehicle-mounted unit, and when the handshake is successful, identifies the unique identification information of the vehicle-mounted unit;

所述路侧单元加密模块，还用于对所述车辆识别模块识别的唯一识别信息进行解密处理；The roadside unit encryption module is further configured to decrypt the unique identification information identified by the vehicle identification module;

所述算法，用于当所述路侧识别单元加模块进行解密处理时，对所述目标车位处的目标车辆的停留时间进行计时，并对计时时长进行时间校正，获得最终停车时间。The algorithm is used for timing the staying time of the target vehicle at the target parking space when the roadside identification unit plus module performs decryption processing, and performing time correction on the timing duration to obtain the final parking time.

上述对计时时长进行时间校正，是为了确保获取时间的准确性。The above-mentioned time correction for the timing duration is to ensure the accuracy of the obtained time.

上述反馈的连接结果，例如是握手成功，或握手失败。The connection result fed back above, for example, is that the handshake is successful, or the handshake fails.

上述技术方案的有益效果是：通过对通信连接请求进行加密和对唯一识别信息进行解密，提高其信息的安全性，提高通信传输的安全性。The beneficial effects of the above technical solutions are: by encrypting the communication connection request and decrypting the unique identification information, the security of its information and the security of communication transmission are improved.

本发明实施例提供一种用于路侧单元和车载单元的通信方法，如图3所示，所述车载单元包括：车辆识别码、车辆识别码收发模块、车在单元加密模块；An embodiment of the present invention provides a communication method for a roadside unit and a vehicle-mounted unit. As shown in FIG. 3 , the vehicle-mounted unit includes: a vehicle identification code, a vehicle identification code transceiver module, and a vehicle-in-unit encryption module;

所述车辆识别码，用于存储所述目标车辆的唯一标识码；the vehicle identification code for storing the unique identification code of the target vehicle;

所述车载单元加密模块，用于对所述车载单元进行加密处理的通信连接请求进行解密处理，并将解密处理后的通信连接请求传输到所述车辆识别码收发模块；The vehicle-mounted unit encryption module is configured to decrypt the communication connection request encrypted by the vehicle-mounted unit, and transmit the decrypted communication connection request to the vehicle identification code transceiver module;

所述车辆识别码收发模块，用于当握手成功时，基于所述车载单元加密模块，对存储的所述唯一标识码进行加密处理，并将加密处理后的唯一标识码发送到所述车载单元。The vehicle identification code transceiver module is used to encrypt the stored unique identification code based on the vehicle-mounted unit encryption module when the handshake is successful, and send the encrypted unique identification code to the vehicle-mounted unit .

上述车辆识别码，一般可理解为电子标签。The above vehicle identification code can generally be understood as an electronic tag.

上述技术方案的有益效果是：通过对通信连接请求进行解密和对唯一识别信息进行解加密，提高其信息的安全性，提高通信传输的安全性。The beneficial effects of the above technical solutions are: by decrypting the communication connection request and decrypting the unique identification information, the security of its information and the security of communication transmission are improved.

本发明实施例提供一种用于路侧单元和车载单元的通信方法，所述路侧单元，还包括：路侧单元供电模块，用于对所述车辆感知模块、车辆识别模块、车辆停留时间计算模块、车辆信息后台通讯模块、时间校正模块和路侧单元加密模块提供电能。An embodiment of the present invention provides a communication method for a roadside unit and a vehicle-mounted unit. The roadside unit further includes: a roadside unit power supply module, which is used for the vehicle perception module, the vehicle identification module, the vehicle stay time The computing module, the vehicle information background communication module, the time correction module and the roadside unit encryption module provide power.

优选地，所述车载单元，还包括：车载单元供电模块，用于对所述车辆识别码、车辆识别码收发模块、车在单元加密模块提供电能。Preferably, the on-board unit further includes: a power supply module for the on-board unit, which is used to provide power to the vehicle identification code, the vehicle identification code transceiver module, and the on-board unit encryption module.

上述技术方案的有益效果是：上述设置供电模块，是为了保证路侧单元与车载单元可以正常的工作。The beneficial effects of the above technical solutions are: the above-mentioned setting of the power supply module is to ensure that the roadside unit and the vehicle-mounted unit can work normally.

本发明实施例提供一种用于路侧单元和车载单元的通信方法，还包括：An embodiment of the present invention provides a communication method for a roadside unit and a vehicle-mounted unit, further comprising:

基于监测模块对预设区域中的所有目标车位进行监测，并将监测结果传输到所述目标车辆对应的目标用户的用户端进行显示；Monitor all target parking spaces in the preset area based on the monitoring module, and transmit the monitoring results to the user terminal of the target user corresponding to the target vehicle for display;

其中，所述目标车辆与所述用户端进行预先通信绑定。Wherein, the target vehicle and the user terminal are pre-communicated and bound.

上述监测结果，例如为，目标区域A中存在有a1、a2、a3、a4这四个停车位，对每个停车位的当前停车情况进行监测，当a1、a3停车时，监测结果为，a1、a3停车，a2、a4未停车。The above monitoring results, for example, there are four parking spaces a1, a2, a3, and a4 in the target area A, and the current parking situation of each parking space is monitored. When a1 and a3 are parked, the monitoring result is, a1 , a3 stops, a2, a4 do not stop.

上述用户端，例如是手机端、或者车载端。The above-mentioned user terminal is, for example, a mobile terminal or a vehicle terminal.

上述技术方案的有益效果是：通过对目标车位进行监测，便于目标用户及时了解停车位的占用情况，通过与用户端进行预先通信绑定，是为了便于将监测结果传输到该用户端，便于用户及时查看，并及时提醒用户。The beneficial effects of the above technical solutions are: by monitoring the target parking space, it is convenient for the target user to know the occupancy of the parking space in time, and by pre-communication binding with the user terminal, it is convenient to transmit the monitoring results to the user terminal, which is convenient for the user. Check in time and remind users in time.

本发明实施例提供一种用于路侧单元和车载单元的通信方法，Embodiments of the present invention provide a communication method for a roadside unit and a vehicle-mounted unit,

基于监测模块对预设区域中的所有目标车位进行监测的同时，还监测所述目标车位的进入线对应的区域范围内是否存在目标车辆；While monitoring all target parking spaces in the preset area based on the monitoring module, it also monitors whether there is a target vehicle within the area corresponding to the entry line of the target parking space;

若存在，确定所述目标车辆的车辆信息，同时，对所述目标车辆中的目标驾驶员进行监测，基于驾驶员数据库，确定所述目标驾驶员的驾驶信息；If there is, determine the vehicle information of the target vehicle, at the same time, monitor the target driver in the target vehicle, and determine the driving information of the target driver based on the driver database;

根据所述监测模块的监测范围，对所述目标车辆的运动状态进行监测获取，并基于监测获取的运动状态对所诉驾驶信息进行修正；According to the monitoring range of the monitoring module, monitor and obtain the motion state of the target vehicle, and revise the driving information based on the motion state obtained by monitoring;

获取所述目标区域中的目标车位分布图，将基于监测模块获取的目标车位的监测结果，对占据车位进行显著性标注，并将显著性标注的目标车位分布图发送到所述用户端进行显示；Obtain the target parking space distribution map in the target area, mark the occupied parking spaces based on the monitoring results of the target parking spaces obtained by the monitoring module, and send the significantly marked target parking space distribution map to the user terminal for display ;

同时，当监测的区域范围内的目标车辆的车辆个数小于所述预设区域对应的空闲车位时，根据所述目标车辆与所述空闲车位的实际距离，自动向所述目标驾驶员推荐显著性标注的目标车位分布图中的第一空闲车位，且所述目标驾驶员按照所述推荐的第一空闲车位进行停车；At the same time, when the number of target vehicles within the monitored area is less than the number of free parking spaces corresponding to the preset area, according to the actual distance between the target vehicle and the free parking space, automatically recommend significant the first vacant parking space in the target parking space distribution map marked with sex, and the target driver parks according to the recommended first vacant parking space;

当监测的区域范围内的目标车辆的车辆个数等于所述预设区域对应的空闲车位时，对所述空闲车位的地理位置进行智能判断，获得与所述空闲车位相关的地理优势信息；When the number of vehicles of the target vehicle within the monitored area is equal to the free parking space corresponding to the preset area, intelligently judge the geographic location of the free parking space, and obtain geographical advantage information related to the free parking space;

且根据所述地理优势信息和修正后的驾驶信息，自动向所述目标驾驶员推荐显著性标注的目标车位分布图中的第二空闲车位，且所述目标驾驶员按照所述推荐的第二空闲车位进行停车；And according to the geographical advantage information and the revised driving information, the second vacant parking space in the target parking space distribution map marked with significance is automatically recommended to the target driver, and the target driver follows the recommended second parking space. Free parking spaces for parking;

当监测的区域范围内的目标车辆的车辆个数大于所述预设区域对应的空闲车位时，基于车辆信息和时间轴向与空闲车位个数相等的前预设数目个用户端推荐对应的第三空闲车位，所述目标驾驶员按照所述推荐的第三空闲车位进行停车；When the number of target vehicles within the monitored area is greater than the number of free parking spaces corresponding to the preset area, the first preset number of user-side recommendations corresponding to the number of free parking spaces based on the vehicle information and the time axis Three free parking spaces, the target driver parks according to the recommended third free parking space;

其中，在推荐空闲车位之前，确定所述空闲车位中是否存在观测对象，若存在，对所述观测对象进行预警警示。Wherein, before recommending a free parking space, it is determined whether there is an observation object in the free parking space, and if there is, an early warning warning is given to the observation object.

在该实施例中，基于监测模块对预设区域中的所有目标车位进行监测的同时，还监测所述目标车位的进入线对应的区域范围内是否存在目标车辆，是为了后续推荐空闲车位提供数据基础；In this embodiment, while monitoring all target parking spaces in the preset area based on the monitoring module, it also monitors whether there is a target vehicle in the area corresponding to the entry line of the target parking space, in order to provide data for subsequent recommendation of free parking spaces Base;

确定车辆信息，是为了后续车辆数量多余空闲车位的情况下，按照目标车辆进入预设区域的先后顺序，对车辆分配车位，便于有效管控。Determining the vehicle information is for the purpose of allocating parking spaces to the vehicles according to the order in which the target vehicles enter the preset area when the number of subsequent vehicles exceeds the vacant parking spaces, so as to facilitate effective management and control.

通过确定目标驾驶员的驾驶信息，同时获取监测范围内的驾驶状态，对驾驶员的驾驶信息进行修正，便于有效的为用户推送相关的空闲车位，因此空闲车位的位置方向不同，停车的难易程度不同，因此，通过获取驾驶信息，为推送空闲车位，显得更加实用，提高用户体验效果。By determining the driving information of the target driver, at the same time obtaining the driving status within the monitoring range, and correcting the driving information of the driver, it is convenient to effectively push the relevant free parking spaces for the user. Therefore, the positions and directions of the free parking spaces are different, making it difficult to park. The degree is different. Therefore, by obtaining driving information, it is more practical to push free parking spaces and improve the user experience.

获取目标区域中的目标车位分布图，对占据车位进行显著性标注，是为了便于直观看到空闲车位，当然，在此过程中，用户可以不按照推动的空闲车位的位置进行停车，提高其停车的灵活性。Obtaining the distribution map of the target parking spaces in the target area, and marking the occupied parking spaces with significance is to facilitate the intuitive view of the free parking spaces. Of course, in this process, the user can park according to the position of the free parking spaces pushed to improve the parking space. flexibility.

通过对空闲车位相关的地理优势进行相应的判断，是为了方便更好的为目标车辆分配相适应的车位，确保驾驶员可以安全停车。By making a corresponding judgment on the geographical advantages related to the free parking spaces, it is to facilitate and better allocate suitable parking spaces for the target vehicle and ensure that the driver can park safely.

如图4所示，存在不同地理位置的停车位，a1，a2，a3，a4，且基于预设区域c和目标车辆的位置d,可视为停车位a1>a2>a3>a4；As shown in Figure 4, there are parking spaces in different geographic locations, a1, a2, a3, a4, and based on the preset area c and the position d of the target vehicle, it can be regarded as a parking space a1>a2>a3>a4;

其中，箭头方向表示行驶方向。Here, the direction of the arrow indicates the direction of travel.

该实施例中，观测对象可以是人等，进行预警警示，是为了提醒观测对象离开该区域。In this embodiment, the observation object may be a person or the like, and the warning is performed to remind the observation object to leave the area.

该实施例中，第一空闲车位、第二空闲车位、第三空闲车位都是基于目标车辆的个数和空闲车位的数量的对比分析进行区别开来的。In this embodiment, the first free parking space, the second free parking space, and the third free parking space are all distinguished based on the comparative analysis of the number of target vehicles and the number of free parking spaces.

上述技术方案的有益效果是：通过按照不同的车辆数目与空闲车位数目的对比分析，依据不同的数据基础进行相应的推荐，提高了停车的效率，进一步的提高车辆与路侧单元的通信效率。The beneficial effects of the above technical solutions are: through comparative analysis according to the number of different vehicles and the number of free parking spaces, and corresponding recommendations are made according to different data bases, the efficiency of parking is improved, and the communication efficiency between vehicles and roadside units is further improved.

本发明实施例提供一种用于路侧单元和车载单元的通信方法，所述目标车辆驶入对应的空闲车位的过程中，还包括：An embodiment of the present invention provides a communication method for a roadside unit and an on-board unit. During the process of driving the target vehicle into a corresponding free parking space, the method further includes:

获取所述目标车辆的修正后的驾驶信息，并根据所述驾驶信息判断所述目标车辆是否可被正常停放到所述空闲车位；Acquiring the corrected driving information of the target vehicle, and judging whether the target vehicle can be normally parked in the free parking space according to the driving information;

Figure BDA0002429604900000101
Figure BDA0002429604900000101

其中，S表示目标车辆可被正常停放到空闲车位的停放值；δ表示监测获取的运动状态值，且取值范围为[0,1]，当δ为0时，表示所述目标车辆对应的驾驶员的驾驶技术低；当δ为1时，表示所述目标车辆对应的驾驶员的驾驶技术高；|H|表示未对驾驶信息进行修正之前，对应的驾驶信息的驾驶指标矩阵的驾驶特征值；Among them, S represents the parking value of the target vehicle that can be normally parked in the free parking space; δ represents the motion state value obtained by monitoring, and the value range is [0, 1], when δ is 0, it indicates that the target vehicle corresponds to The driving skill of the driver is low; when δ is 1, it means that the driving skill of the driver corresponding to the target vehicle is high; |H| represents the driving characteristics of the driving index matrix of the corresponding driving information before the driving information is corrected. value;

当所述停放值S大于预设值时，表明所述目标车辆可被正常停放到所述空闲车位，此时对所述空闲车位的边界点进行监测，并实时向所述用户端推送提醒所述目标车辆的车辆边界与所述边界点之间的距离；When the parking value S is greater than the preset value, it indicates that the target vehicle can be normally parked in the free parking space. At this time, the boundary point of the free parking space is monitored, and a real-time push notification is sent to the user terminal. the distance between the vehicle boundary of the target vehicle and the boundary point;

当所述停放值S等于或等于预设值时，如果基于所述用户端接收到所述目标驾驶员输入的指导指令时，基于所述目标车辆的当前位置点A(x,y)和所述空闲车位的位置点集合B(x,y)，获取所述目标车辆的方案值X；When the parking value S is equal to or equal to the preset value, if the user terminal receives the guidance instruction input by the target driver, based on the current position point A(x, y) of the target vehicle and all The location point set B(x, y) of the free parking space, and the solution value X of the target vehicle is obtained;

Figure BDA0002429604900000111
Figure BDA0002429604900000111

其中，n表示位置点集合B中位置点的总个数，且i是n个位置点中的第i个位置点；Bi(x,y)表示第i个位置点对应的坐标点；

Figure BDA0002429604900000112
表示n个位置点对应的平均坐标点；θ-θi表示所述目标车辆对应的当前位置点A与对应的位置集合B中的第i个位置点之间的角度差值；Among them, n represents the total number of location points in the location point set B, and i is the ith location point in the n location points; B i (x, y) represents the coordinate point corresponding to the ith location point;
Figure BDA0002429604900000112
represents the average coordinate point corresponding to n position points; θ-θ i represents the angle difference between the current position point A corresponding to the target vehicle and the i-th position point in the corresponding position set B;

根据所述方案值X，在停车数据库中，调取与所述方案值X相关的停车方案，并向所述用户端推送与所述指导指令相关的停车方案。According to the plan value X, the parking plan related to the plan value X is retrieved from the parking database, and the parking plan related to the guidance instruction is pushed to the client.

上述技术方案的有益效果是：通过确定停放值，初步判断目标车辆是否可被正常停放到空闲车位，且通过对停放值S大于预设值对应的目标车辆的停放过程进行点与点的监测，并进行有效的提醒，通过计算停放值S等于或等于预设值对应的方案值，确定对应的停放方案，并推送用户端，可以有效的避免在停车过程中遇到的障碍，提高停车安全性，为后续进行车辆与路侧单元中之间的通信连接提供可靠基础。The beneficial effects of the above technical solutions are: by determining the parking value, it is preliminarily judged whether the target vehicle can be normally parked in a free parking space, and by performing point-to-point monitoring on the parking process of the target vehicle corresponding to the parking value S greater than the preset value, And make an effective reminder, by calculating the parking value S equal to or equal to the preset value corresponding to the scheme value, determine the corresponding parking scheme, and push the user terminal, which can effectively avoid obstacles encountered in the parking process and improve parking safety. , which provides a reliable basis for the subsequent communication connection between the vehicle and the roadside unit.

显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, provided that these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims (8)

1. A communication method for a roadside unit and an on-board unit, comprising:
based on the road side unit, when a target vehicle exists at a target parking space, sending a communication connection request which is encrypted by a road side unit encryption module to the vehicle-mounted unit;
feeding back a connection result based on the communication connection request to the road side unit based on the on-board unit;
and on the basis of the road side unit, when the vehicle-mounted result is that the connection is successful, the road side unit and the vehicle-mounted unit are indicated to handshake successfully, at the moment, the unique identification information encrypted by the vehicle-mounted unit on the basis of an encryption module of the vehicle-mounted unit is identified, and the parking time of the target vehicle in the target parking space is timed.
2. The communication method of claim 1, wherein the roadside unit comprises:
the system comprises a vehicle sensing module, a vehicle identification module, a vehicle information background communication module, a road side unit encryption module and an algorithm;
the vehicle sensing module is used for sensing whether a target vehicle exists at the target parking space;
the vehicle identification module is used for sending the communication connection request encrypted by the road side unit encryption module based on the vehicle information background communication module when the vehicle sensing module senses that the target vehicle exists, receiving a connection result fed back by the vehicle-mounted unit based on the vehicle information background communication module, and identifying unique identification information of the vehicle-mounted unit when the handshake is successful;
the road side unit encryption module is also used for decrypting the unique identification information identified by the vehicle identification module;
and the algorithm is used for timing the staying time of the target vehicle at the target parking space when the roadside identification unit encryption module performs decryption processing, and performing time correction on the timing duration to obtain the final parking time.
3. The communication method according to claim 1, wherein the on-board unit includes: the vehicle identification code, the vehicle identification code transceiving module and the vehicle-mounted unit encryption module are arranged in the vehicle;
the vehicle identification code is used for storing the unique identification code of the target vehicle;
the vehicle-mounted unit encryption module is used for decrypting the communication connection request encrypted by the vehicle-mounted unit and transmitting the decrypted communication connection request to the vehicle identification code transceiving module;
and the vehicle identification code transceiving module is used for encrypting the stored unique identification code based on the vehicle-mounted unit encryption module and sending the encrypted unique identification code to the vehicle-mounted unit when the handshake is successful.
4. The communication method of claim 2, wherein the road side unit further comprises: and the road side unit power supply module is used for providing electric energy for the vehicle sensing module, the vehicle identification module, the vehicle information background communication module, the road side unit encryption module and the algorithm.
5. The communication method according to claim 3, wherein the on-board unit further includes: and the vehicle-mounted unit power supply module is used for supplying electric energy to the vehicle identification code, the vehicle identification code transceiving module and the vehicle-mounted unit encryption module.
6. The communication method of claim 1, further comprising:
monitoring all target parking spaces in a preset area based on a monitoring module, and transmitting a monitoring result to a user side of a target user corresponding to the target vehicle for displaying;
and the target vehicle and the user side are subjected to pre-communication binding.
7. The communication method according to claim 6, wherein a monitoring module is used for monitoring all target parking spaces in a preset area and simultaneously monitoring whether a target vehicle exists in an area range corresponding to an entrance line of the target parking spaces;
if the target vehicle exists, determining vehicle information of the target vehicle, monitoring a target driver in the target vehicle, and determining driving information of the target driver based on a driver database;
monitoring and acquiring the motion state of the target vehicle according to the monitoring range of the monitoring module, and correcting the driving information based on the motion state acquired by monitoring;
acquiring a target parking space distribution map in the target area, performing significance marking on occupied parking spaces based on a monitoring result of the target parking spaces acquired by a monitoring module, and transmitting the significance marked target parking space distribution map to the user side for displaying;
meanwhile, when the number of the target vehicles in the monitored area range is smaller than the number of the free parking spaces corresponding to the preset area, automatically recommending a first free parking space in the target parking space distribution map marked with significance to the target driver according to the actual distance between the target vehicle and the free parking spaces, and parking the target driver according to the recommended first free parking space;
when the number of the target vehicles in the monitored area range is equal to the number of the idle parking spaces corresponding to the preset area, intelligently judging the geographic positions of the idle parking spaces, and acquiring geographic advantage information related to the idle parking spaces;
automatically recommending a second free parking space in the target parking space distribution map marked with significance to the target driver according to the geographic advantage information and the corrected driving information, and parking the target driver according to the recommended second free parking space;
when the number of the target vehicles in the monitored area range is larger than the number of the idle parking spaces corresponding to the preset area, recommending corresponding third idle parking spaces based on vehicle information and a user side with the number of the idle parking spaces equal to the number of the idle parking spaces in the axial direction of time, and parking the target driver according to the recommended third idle parking spaces;
before recommending the free parking space, determining whether an observation object exists in the free parking space, and if so, carrying out early warning and warning on the observation object.
8. The communication method according to claim 7, wherein the target vehicle drives into the corresponding vacant parking space, further comprising:
acquiring corrected driving information of the target vehicle, and judging whether the target vehicle can be normally parked to the vacant parking space according to the driving information;
Figure FDA0002429604890000031
s represents a parking value that the target vehicle can be normally parked to an idle parking space; the motion state value obtained through monitoring is represented, the value range is [0,1], and when the value range is 0, the driving technology of a driver corresponding to the target vehicle is low; when the value is 1, the driving skill of the driver corresponding to the target vehicle is high; | H | represents a driving characteristic value of a driving index matrix of corresponding driving information before the driving information is not corrected;
when the parking value S is larger than a preset value, the target vehicle can be normally parked to the free parking space, at the moment, the boundary point of the free parking space is monitored, and the distance between the vehicle boundary reminding the target vehicle and the boundary point is pushed to the user side in real time;
when the parking value S is equal to or equal to a preset value, if a guiding instruction input by the target driver is received based on the user side, acquiring a scheme value X of the target vehicle based on a current position point A (X, y) of the target vehicle and a position point set B (X, y) of the free parking space;
Figure FDA0002429604890000041
wherein n represents the total number of position points in the position point set B, and i is the ith position point in the n position points; b isi(x, y) represents a coordinate point corresponding to the ith position point;
Figure FDA0002429604890000042
representing average coordinate points corresponding to the n position points; theta-thetaiRepresenting the angle difference between the current position point A corresponding to the target vehicle and the ith position point in the corresponding position set B;
and calling a parking scheme related to the scheme value X in a parking database according to the scheme value X, and pushing the parking scheme related to the guidance instruction to the user side.
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