CN210234803U - Vehicle collision avoidance system - Google Patents
Vehicle collision avoidance system Download PDFInfo
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- CN210234803U CN210234803U CN201920460728.0U CN201920460728U CN210234803U CN 210234803 U CN210234803 U CN 210234803U CN 201920460728 U CN201920460728 U CN 201920460728U CN 210234803 U CN210234803 U CN 210234803U
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Abstract
The utility model discloses a vehicle collision avoidance system, including anticollision host computer and ultra wide band module, the anticollision host computer include the master control module circuit and with the ultra wide band orientation module circuit that the master control module circuit is connected, ultra wide band orientation module is used for receiving the ultra wide band signal that the ultra wide band module sent, master control module is used for handling ultra wide band orientation module handles the ultra wide band signal that the ultra wide band orientation module received. The utility model provides a vehicle is prevented system adopts the ultra wide band module to send ultra wide band signal, has higher measurement accuracy, receives environmental impact less, handles ultra wide band signal through the host system circuit of anticollision host computer, when the personnel that carry the ultra wide band module are close to vehicle collision avoidance system, provides dangerous warning information to prevent that personnel are injured.
Description
Technical Field
The utility model relates to a vehicle collision avoidance system.
Background
Currently, the transportation industry does not involve much for intelligent transportation, but from the development trend of the whole industry, intelligent transportation is a very promising direction, and the safety problem in this direction is very important, how to realize stable and accurate distance measurement, and the safety alarm when providing the people around the vehicle to approach is provided to prevent the people from being injured, which is an important precondition for vehicle intelligence.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve personnel's safe problem, provide a vehicle collision avoidance system.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
the vehicle anti-collision system comprises an anti-collision host and an ultra-wideband module, wherein the anti-collision host comprises a main control module circuit and an ultra-wideband positioning module circuit connected with the main control module circuit, the ultra-wideband positioning module is used for receiving ultra-wideband signals sent by the ultra-wideband module, and the main control module is used for processing the ultra-wideband signals received by the ultra-wideband positioning module.
According to the utility model discloses an embodiment, the anticollision host computer still includes audible alarm circuit, audible alarm circuit connects the host system circuit, audible alarm circuit include audible control circuit and with the sound generating mechanism that audible control circuit connects.
According to the utility model discloses an embodiment, host system still includes light alarm circuit, light alarm circuit includes first triode and alarm lamp, the base of first triode is connected the luminous signal end of host system circuit, establish ties between the collecting electrode of first triode and the power end the alarm lamp.
According to the utility model discloses an embodiment, the master control module circuit still includes external control circuit, external control circuit includes second triode and relay, the base of second triode is connected the control signal end of master control module circuit, establish ties between the collecting electrode of second triode and the power connection end the relay.
According to an embodiment of the present invention, the number of the external control circuits is plural.
According to the utility model discloses an embodiment, the host system circuit still includes reset circuit, reset circuit includes the third triode, the base of third triode is connected the reset control signal end of host system circuit, the collecting electrode of third triode is as the reset signal end.
According to the utility model discloses an embodiment, host system carries out signal transmission through connecting CAN interface circuit.
According to the utility model discloses an embodiment, the master control module circuit includes power supply circuit, power supply circuit includes multichannel DC/DC circuit.
According to the utility model discloses an embodiment, anticollision host computer still includes isolating circuit, isolating circuit adopts optical coupler.
According to the utility model discloses an embodiment, the anticollision host computer still includes the pilot lamp array, the pilot lamp array includes a plurality of emitting diode, and is a plurality of emitting diode establishes ties respectively to each working circuit in.
The utility model provides a vehicle is prevented system adopts the ultra wide band module to send ultra wide band signal, has higher measurement accuracy, receives environmental impact less, handles ultra wide band signal through the host system circuit of anticollision host computer, when the personnel that carry the ultra wide band module are close to vehicle collision avoidance system, provides dangerous warning information to prevent that personnel are injured.
Drawings
FIG. 1 is a schematic diagram of a vehicle collision avoidance system of an embodiment;
FIG. 2 is a pin diagram of a main control module circuit of the vehicle collision avoidance system of the embodiment;
FIG. 3 is a pin diagram of an ultra-wideband positioning module circuit of the vehicle collision avoidance system of the embodiment;
FIG. 4 is a functional schematic of a vehicle bumper system of an embodiment;
FIG. 5 is a pin diagram of an audible alarm circuit of the vehicle collision avoidance system of an embodiment;
FIG. 6 is a schematic circuit diagram of a light warning circuit of the vehicle collision avoidance system of an embodiment;
FIG. 7 is a schematic electrical circuit diagram of an external control circuit of the vehicle bumper system of the embodiment;
FIG. 8 is a schematic electrical circuit diagram of another external control circuit of the vehicle bumper system of the embodiment;
FIG. 9 is a circuit schematic of a reset circuit of the vehicle collision avoidance system of an embodiment;
FIG. 10 is a schematic circuit diagram of a CAN interface circuit of the vehicle collision avoidance system of an embodiment;
FIG. 11 is a schematic electrical circuit diagram of a power circuit of the vehicle bumper system of the embodiment;
FIG. 12 is a schematic electrical circuit diagram of an isolation circuit of the vehicle collision avoidance system of the embodiment;
FIG. 13 is a schematic circuit diagram of an indicator light circuit of the vehicle collision avoidance system of an embodiment;
fig. 14 is a pin diagram of a dip of a vehicle bumper system according to an embodiment.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings:
as shown in fig. 1 to 3, this embodiment provides a vehicle collision avoidance system, including collision avoidance host and Ultra Wide Band (UWB) module, collision avoidance host and Ultra wide band module are separated in physical connection, and a collision avoidance host can correspond a plurality of Ultra wide band modules, and as shown in fig. 1, the Ultra wide band module can be made into the form of personnel card so as to be convenient for personnel to use, and can adopt TOF mode to carry out distance measurement work through Ultra wide band technology, the collision avoidance host includes a main control module circuit and an Ultra wide band positioning module circuit connected with the main control module circuit, as shown in fig. 2, the main control module circuit can adopt 32C8T6Mini chip and the pin schematic diagram of the UWB chip in fig. 3, the Ultra wide band positioning module is used for receiving the Ultra wide band signal sent by the Ultra wide band module, and the main control module is used for processing the Ultra wide band signal received by the Ultra wide band positioning module.
The ultra-wideband (UWB) can also be called as pulse radio, the UWB modulation adopts fast ascending and descending pulses with the pulse width of ns level, the frequency spectrum covered by the pulses is from direct current to GHz, the RF frequency conversion required by the conventional narrow-band modulation is not needed, and the pulses can be directly sent to an antenna for emission after being formed. The pulse peak-to-peak time interval is in the order of 10-100 ps. The spectral shape can be adjusted by the very narrow duration monopulse shape and antenna loading characteristics. UWB signals are sparsely distributed on the time axis, their power spectral density is quite low, and RF can transmit multiple UWB signals simultaneously. UWB signals, like baseband signals, may employ OOK, antipodal pulse keying, pulse amplitude modulation, or pulse position modulation. UWB differs from conventional wireless systems that convert baseband signals to wireless Radio Frequencies (RF) and can be viewed as a baseband propagation scheme on RF that can reach 100Mb/s data rates with very low spectral density within a building. UWB wireless communication is a communication method that uses pulses with extremely short time intervals (less than 1ns) without using a carrier, and is also called impulse radio (ImpulseRadio), time domain (TimeDomain), or carrierless (CarrierFree) communication. Compared with the common Binary Phase Shift Keying (BPSK) signal waveform, the UWB scheme transmits many pulses smaller than 1ns without using cosine wave for carrier modulation, so that the communication scheme occupies a very wide bandwidth, and has the characteristic of general spread spectrum communication because the power density of the frequency spectrum is very small. UWB enables data transmission rates of hundreds of Mbit/s to Gbit/s over a range of about 10 meters by transmitting extremely low power signals over a wide frequency spectrum. UWB has many advantages such as strong anti-interference performance, high transmission rate, extremely wide bandwidth, small power consumption, and small transmission power, and is mainly applied to the fields of indoor communication, high-speed wireless LAN, home network, cordless telephone, security detection, position measurement, radar, and the like.
Referring to fig. 4 and 5, in order to provide a warning, the anti-collision host further includes an audio alarm circuit, the audio alarm circuit is connected to the main control module circuit, a model XFS5152Voice chip can be adopted, information can be sent and received to the main control module circuit through the ports RX _3 and TX _2, the audio alarm circuit includes an audio control circuit and a sound generating device connected to the audio control circuit, the sound generating device can be accessed through SPK-and SPK +, when a person carrying the ultra-wideband module approaches the anti-collision host, the person can send out an audio alarm according to a set value in a graded manner, so as to provide danger warning information.
With continued reference to fig. 6, the main control module further includes a light alarm circuit, the light alarm circuit includes a first light emitting diode Q0 and an alarm lamp, a base of the first triode Q0 is connected to a light emitting signal terminal PB12 of the main control module circuit, the alarm lamp is connected in series between a collector of the first triode Q0 and a power connection terminal, a 12V power supply can be adopted, the alarm lamp can be respectively and correspondingly connected to ALA + and ALA _ G, and a light emitting diode L50 connected in series between the power supply and the collector of the first triode Q0 can display an operating state of the alarm lamp.
As shown in fig. 7, the main control module circuit further includes an external control circuit, the external control circuit includes a second triode Q1 and a relay, a base of the second triode is connected to an external control signal terminal PB13 of the main control module circuit, the relay is connected in series between a collector of the second triode Q1 and a power connection terminal, a 12V power supply can be adopted, the relay is respectively and correspondingly connected to DO2+ and DO2-, and a light emitting diode L51 connected in series between the power supply and the collector of the second triode Q1 can show a working state of the relay.
Further, as shown in fig. 8, the number of the external control circuits is plural, and the external control circuits correspond to the second triode Q1 and the relay connected thereto, and another triode Q2 is adopted, the base thereof is connected to the external control signal terminal PB14, and another relay is correspondingly connected to DO2+ and DO2 — respectively, which can also perform the function of external control, thereby realizing multi-path control.
As shown in fig. 9, the main control module circuit further includes a reset circuit, the reset circuit includes a third transistor Q3, a base of the third transistor is connected to the reset control signal terminal PB15 of the main control module circuit, and a collector of the third transistor Q3 is used as the reset signal terminal RST, that is, one end of the collector of the third transistor Q3 is used as the reset signal.
As shown in fig. 10, the main control module performs signal transmission by connecting to a CAN interface circuit, and is connected to the outside through 2 lines by using a TJA1050T chip, the communication medium may be a twisted pair, a coaxial cable, or an optical fiber, the communication rate may reach 1mb/s, and the CAN bus interface integrates the functions of a physical layer and a data link layer of a CAN protocol, and CAN complete framing processing of communication data, including bit stuffing, data block encoding, cyclic redundancy check, priority discrimination, and the like.
As shown in fig. 11, the main control module circuit further includes a power circuit, where the power circuit includes multiple DC/DC circuits, such as converting the primary circuit into 12V, and then converting the primary circuit into 3.3V and 5V, respectively, to meet the requirements of different devices in the system for different voltages.
As shown in fig. 12, further, the host computer further includes an isolation circuit, the isolation circuit uses an optical coupler LO1/LO2 to form a switching value signal, and converts the electrical signal at the input end into an optical signal using light as a medium, and then converts the optical signal into an electrical signal after coupling the optical signal to the output end.
As shown in fig. 13, in combination with the above circuit, the host further includes an indicator light array, the indicator light array includes a plurality of light emitting diodes, the plurality of light emitting diodes are respectively connected in series to each working circuit, the working circuit may be one of the above circuits, and as for any other circuit with a certain function or function, a light emitting diode may be connected in series to indicate, and no limitation is imposed on what kind of working circuit is specifically.
As shown IN fig. 14, IN the present embodiment, each signal can be connected to the dual IN-line pin to facilitate the connection process of the signal, and the voltage to be measured can be input between AI _ IN1 and AI _ IN and GND respectively and is within 30 VDC; if COM is connected to GND and DI is 25V, it represents input 1, and if COM is connected to 24V and DI is 0V, it represents input 1; 12V relay can be connected between DO2+ and DO2-, and 5V relay can be connected between DO3+ and DO 3-; CAN _ H and CAN _ L CAN be used as CAN communication interfaces.
The vehicle collision avoidance system's of this embodiment measurement accuracy can reach 5cm, receives all ring edge borders influence less, at concrete implementation in-process, can directly set for fork truck's safe crashproof distance through the app interface, and functions such as volume of reporting to the police, broadcast pronunciation. Through adopting UWB ultra wide band communication technique, realize the transmission of data through sending and receiving nanosecond or shorter pulse, two modules of range finding can start to generate independent time stamp respectively before starting the range finding, and module A can produce an accurate time stamp TA1 when starting the range finding request signal, and module B sends out response signal when receiving the signal, and module A receives the return signal of range finding at TA 2. From this, the distance S ═ C [ (TA2-TA1) - (TB2-TB1) ] between the two modules can be calculated. Based on the determination principle, for example, a collision avoidance host comprising a communication processing unit and an alarm unit is fixed on the vehicle through the embodiment, and the personnel around the vehicle is provided with an ultra-wideband module, and when the determined distance is less than the set distance of the module, the communication processing unit can send alarm data and trigger the vehicle alarm unit to alarm. The alert levels of the alert unit may also be alarmed in different levels depending on the distance between the vehicle and the ranging target.
The utility model provides a vehicle is prevented system adopts the ultra wide band module to send ultra wide band signal, has higher measurement accuracy, receives environmental impact less, handles ultra wide band signal through the host system circuit of anticollision host computer, when the personnel that carry the ultra wide band module are close to vehicle collision avoidance system, provides dangerous warning information to prevent that personnel are injured.
The embodiments of the present invention are only used for illustration, and do not limit the scope of the claims, and other substantially equivalent alternatives that may be conceived by those skilled in the art are within the scope of the present invention.
Claims (10)
1. The vehicle anti-collision system is characterized by comprising an anti-collision host and an ultra-wideband module, wherein the anti-collision host comprises a main control module circuit and an ultra-wideband positioning module circuit connected with the main control module circuit, the ultra-wideband positioning module is used for receiving ultra-wideband signals sent by the ultra-wideband module, and the main control module is used for processing the ultra-wideband signals received by the ultra-wideband positioning module.
2. The vehicle collision avoidance system of claim 1, wherein the collision avoidance host further comprises an audio alarm circuit, the audio alarm circuit is connected to the main control module circuit, and the audio alarm circuit comprises an audio control circuit and a sound generating device connected to the audio control circuit.
3. The vehicle anti-collision system according to claim 1, wherein the main control module further comprises a light alarm circuit, the light alarm circuit comprises a first triode and an alarm lamp, a base of the first triode is connected with a light-emitting signal end of the main control module circuit, and the alarm lamp is connected in series between a collector of the first triode and a power connection end.
4. The vehicle collision avoidance system of claim 1, wherein the main control module circuit further comprises an external control circuit, the external control circuit comprises a second triode and a relay, a base of the second triode is connected to an external control signal terminal of the main control module circuit, and the relay is connected in series between a collector of the second triode and the power connection terminal.
5. The vehicle collision avoidance system of claim 4, wherein the number of the external control circuits is plural.
6. The vehicle collision avoidance system of claim 1, wherein the master control module circuit further comprises a reset circuit, the reset circuit comprises a third transistor, a base of the third transistor is connected to the reset control signal terminal of the master control module circuit, and a collector of the third transistor serves as the reset signal terminal.
7. The vehicle collision avoidance system of any one of claims 1 through 6, wherein the master control module is connected to the CAN interface circuit for signal transmission.
8. The vehicle collision avoidance system of any of claims 1 through 6, wherein the master control module circuit comprises a power circuit comprising a multi-way DC/DC circuit.
9. The vehicle collision avoidance system of any one of claims 1 to 6, wherein the collision avoidance host further comprises an isolation circuit, the isolation circuit employing an optical coupler.
10. The vehicle collision avoidance system according to any one of claims 1 to 6, wherein the collision avoidance host further comprises an indicator light array comprising a plurality of light emitting diodes, each of the plurality of light emitting diodes being connected in series to each of the operating circuits.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920460728.0U CN210234803U (en) | 2019-04-08 | 2019-04-08 | Vehicle collision avoidance system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920460728.0U CN210234803U (en) | 2019-04-08 | 2019-04-08 | Vehicle collision avoidance system |
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| CN210234803U true CN210234803U (en) | 2020-04-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112053523A (en) * | 2020-08-20 | 2020-12-08 | 北京宸控科技有限公司 | Underground anti-collision method |
| CN113570907A (en) * | 2021-09-23 | 2021-10-29 | 深圳华云时空技术有限公司 | UWB-based pedestrian and vehicle anti-collision method and system in tunnel |
-
2019
- 2019-04-08 CN CN201920460728.0U patent/CN210234803U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112053523A (en) * | 2020-08-20 | 2020-12-08 | 北京宸控科技有限公司 | Underground anti-collision method |
| CN113570907A (en) * | 2021-09-23 | 2021-10-29 | 深圳华云时空技术有限公司 | UWB-based pedestrian and vehicle anti-collision method and system in tunnel |
| CN113570907B (en) * | 2021-09-23 | 2021-12-17 | 深圳华云时空技术有限公司 | UWB-based pedestrian and vehicle anti-collision method and system in tunnel |
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Address after: 201612 room 603, building 5, Keji oasis, 1158 Zhongxin Road, Songjiang District, Shanghai Patentee after: Guoyixian Intelligent Technology (Shanghai) Co., Ltd Address before: 201612 room 603, building 5, Keji oasis, 1158 Zhongxin Road, Songjiang District, Shanghai Patentee before: GUOYIXIAN INTELLIGENT TECHNOLOGY (SHANGHAI) Co.,Ltd. |
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