CN108082035A - A kind of vehicle-to-vehicle communication system based on LED car lamp - Google Patents
A kind of vehicle-to-vehicle communication system based on LED car lamp Download PDFInfo
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- CN108082035A CN108082035A CN201611035605.XA CN201611035605A CN108082035A CN 108082035 A CN108082035 A CN 108082035A CN 201611035605 A CN201611035605 A CN 201611035605A CN 108082035 A CN108082035 A CN 108082035A
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- vehicle
- car lamp
- braking
- led car
- communication system
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- 238000004891 communication Methods 0.000 title claims abstract description 27
- 230000003287 optical effect Effects 0.000 claims abstract description 22
- 230000006855 networking Effects 0.000 abstract description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Optical Communication System (AREA)
Abstract
The present invention relates to car networking and intelligent driving fields, specifically a kind of vehicle-to-vehicle communication system based on LED car lamp, including CAN transceiver, controller, LED driver, LED car lamp, optical receiver and photoelectric converter, the CAN transceiver of transmitting terminal vehicle parses speed, braking and the direction information of CAN message, and coding of controls is sent into message, message controls LED driver that LED car lamp is driven to flicker by low and high level；The optical signal of the speed comprising transmitting terminal vehicle, braking and direction information that the photoconverter of receiving terminal vehicle receives optical receiver is converted to level signal, this level signal is decoded by controller, speed, braking and the direction information of vehicle are parsed, then CAN message is packaged as by CAN transceiver and is sent in the vehicle body CAN bus of receiving terminal vehicle.By the operating status of optical signal transmitted in both directions vehicle between vehicle and vehicle of the present invention, data are accurate and real-time.
Description
Technical field
The present invention relates to car networking and intelligent driving fields, and in particular to using the head lamp and taillight of automobile, uses light
Transmission signal realizes a kind of vehicle-to-vehicle communication system based on LED car lamp of the communication between vehicle and vehicle.
Background technology
Intelligent driving mainly identifies fore-aft vehicle position using radar and camera at present, according to the opposite of nearby vehicle
Regulation speed, braking and direction etc. are come in position.But since vehicle is movement, radar and camera can only all differentiate current shape
State can not be judged in advance, thus the real-time of vehicle control can be caused not high.Current research emphasis is largely all focused on
The precision of radar and the processing capacity of camera image, but the movable information of Adjacent vehicles is only received, it could largely
The real-time that automatically controls of improvement vehicle.Optic communication has the characteristics that light collimation, easily carries out the communication of Adjacent vehicles, and
The relative position for the vehicle that other wireless communication system None- identifieds communicate with.Since LED has the advantages of modulating speed is fast,
As applications of the LED in the head lamp and taillight of automobile is more and more extensive, led to using car light come the information realized between vehicle and vehicle
Letter becomes a kind of possibility.
The content of the invention
The present invention causes intelligence for the motion state that cannot prejudge nearby vehicle by radar and camera in the prior art
Can drive the problem of vehicle control real-time is not high, and research and design one kind can real-time reception nearby vehicle speed, braking and
A kind of vehicle-to-vehicle communication system based on LED car lamp of steering state.
The technical solution adopted by the present invention is：
A kind of vehicle-to-vehicle communication system based on LED car lamp, which is characterized in that be respectively mounted this in the front and rear of vehicle
Communication system, the communication system turn including CAN transceiver, controller, LED driver, LED car lamp, optical receiver and photoelectricity
Parallel operation, the CAN transceiver of transmitting terminal vehicle receive the CAN message of vehicle body CAN bus, and parse speed, braking and turn to letter
Breath, and the above- mentioned information parsed is sent to coding of controls, controller controls the message after coding by low and high level
LED driver driving LED car lamp flicker, the message comprising speed, braking and direction information are sent out by the optical signal sent
It goes；After the optical receiver of receiving terminal vehicle receives the optical signal that transmitting terminal vehicle emissions come, it will be wrapped by photoelectric converter
The optical signal of the speed of the vehicle containing transmitting terminal, braking and direction information is converted to level signal, controller by this level signal into
Row decoding, parses speed, braking and the direction information of vehicle, then is packaged as CAN message by CAN transceiver and is sent to reception
In the vehicle body CAN bus for holding vehicle.
Further, the controller uses Manchester's code to the speed of transmitting terminal vehicle, braking and direction information
It is encoded.
Further, clock frequency >=200HZ of the Manchester's code.
Further, which is characterized in that the CAN message further includes the fault-signal of vehicle.
Further, the LED car lamp is the head lamp or taillight of vehicle.
Compared with prior art, the present invention apparently has the advantages that：
1st, by being respectively mounted the communication system in the front and rear of front and rear two vehicle, the taillight of front truck and rear car are passed through
Head lamp realizes bidirectional optical, another so as to which the speed of two vehicles, braking and steering indicating light information are transferred to mutually by optic communication
Side, what vehicle directly obtained is the vehicle operating information in nearby vehicle CAN bus, and data are accurate, and real-time is good.
2nd, due to use Manchester's code clock frequency >=200Hz so that LED car lamp is sent out by car light flicker
During optical signals, the flicker of human eye None- identified car light.
3rd, the head lamp of vehicle and taillight are using LED light, compared with common car light fast response time (nanosecond), suitable for vehicle
The object that grade quickly moves, it is not easy to burn out, disclosure satisfy that and send the operating status of vehicle by optical signal in time
Demand.
Description of the drawings
Fig. 1 is schematic diagram of the embodiment of the present invention；
Fig. 2 is front truck and rear car communication scheme.
In figure, 1, CAN transceiver, 2, controller, 3, LED driver, 4, photoelectric converter, 5, optical receiver, 6, LED vehicles
Lamp.
Specific embodiment
In order to which technical problem solved by the invention, technical solution and advantageous effect is more clearly understood, below in conjunction with
Accompanying drawings and embodiments, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
In the description of the present invention, it is to be understood that term " radial direction ", " axial direction ", " on ", " under ", " top ", " bottom ",
The orientation or position relationship of the instructions such as " interior ", " outer " are based on orientation shown in the drawings or position relationship, are for only for ease of and retouch
It states the present invention and simplifies description rather than instruction or imply that signified device or element must have specific orientation, with specific
Azimuth configuration and operation, therefore be not considered as limiting the invention.In the description of the present invention, unless otherwise indicated,
" multiple " are meant that two or more.
The vehicle-to-vehicle communication system based on LED car lamp as depicted in figs. 1 and 2, is respectively mounted in the front and rear of vehicle
The communication system.Referring to Fig. 1, communication system includes CAN transceiver 1, controller 2, LED driver 3, LED car lamp 6, light-receiving
Device 5 and photoelectric converter 4, the CAN transceiver 1 of transmitting terminal vehicle receive the CAN message of vehicle body CAN bus, and parse speed,
Braking and direction information, and the above- mentioned information parsed is sent to controller 2 and is encoded, controller 2 leads to the message after coding
Excessively high low level control LED driver 3 drives LED car lamp 6 to flicker, and the message comprising speed, braking and direction information passes through hair
The optical signal gone out is sent；After the optical receiver 5 of receiving terminal vehicle receives the optical signal that transmitting terminal vehicle emissions come, lead to
It crosses photoelectric converter 4 and the optical signal of the speed comprising transmitting terminal vehicle, braking and direction information is converted into level signal, control
This level signal is decoded by device 2, is parsed speed, braking and the direction information of vehicle, then is packaged by CAN transceiver 1
It is sent to for CAN message in the vehicle body CAN bus of receiving terminal vehicle.
Above-mentioned current vehicle is transmitting terminal vehicle, and when rear car is receiving terminal vehicle, front truck is by back light by front truck by CAN bus
On vehicle running state information rear car is sent to by optic communication；When rear car is transmitting terminal vehicle, front truck is receiving terminal vehicle
When, rear car sends the vehicle running state information in rear car CAN bus to front truck by head lamp by optic communication, and front truck is with after
Vehicle two-way communication.Wherein vehicle running state information may include speed, braking, steering and vehicle trouble signal etc..
Wherein controller 2 encodes the speed of transmitting terminal vehicle, braking and direction information using Manchester's code,
And clock frequency >=200HZ of Manchester's code, so when LED car lamp 6 generates optical signal transmission by flickering, human eye is not
It may feel that the flicker of LED car lamp 6.
Above-mentioned desirable embodiment according to the invention is enlightenment, and by above-mentioned description, relevant staff is complete
Can various changes and amendments be carried out without departing from the scope of the technological thought of the present invention'.This invention it is technical
Scope is not limited to the content on specification, it is necessary to determine its technical scope according to right.
Claims (5)
1. a kind of vehicle-to-vehicle communication system based on LED car lamp, which is characterized in that it is logical to be respectively mounted this in the front and rear of vehicle
Letter system, the communication system include CAN transceiver (1), controller (2), LED driver (3), LED car lamp (6), light-receiving
Device (5) and photoelectric converter (4), the CAN transceiver (1) of transmitting terminal vehicle receives the CAN message of vehicle body CAN bus, and parses
Go out speed, braking and direction information, and the above- mentioned information parsed is sent to controller (2) coding, controller (2) will encode
Message afterwards controls LED driver (3) that LED car lamp (6) is driven to flicker by low and high level, comprising speed, braking and turns to letter
The message of breath is sent by the optical signal sent；The optical receiver (5) of receiving terminal vehicle receives transmitting terminal vehicle emissions
After the optical signal to come over, by photoelectric converter (4) by the optical signal of the speed comprising transmitting terminal vehicle, braking and direction information
Level signal is converted to, this level signal is decoded by controller (2), parses speed, braking and the direction information of vehicle,
CAN message is packaged as by CAN transceiver (1) again to be sent in the vehicle body CAN bus of receiving terminal vehicle.
2. the vehicle-to-vehicle communication system according to claim 1 based on LED car lamp, which is characterized in that the controller (2)
The speed of transmitting terminal vehicle, braking and direction information are encoded using Manchester's code.
3. the vehicle-to-vehicle communication system according to claim 2 based on LED car lamp, which is characterized in that described Manchester
Clock frequency >=200HZ of coding.
4. the vehicle-to-vehicle communication system according to claim 1 based on LED car lamp, which is characterized in that it is characterized in that, institute
State the fault-signal that CAN message further includes vehicle.
5. the vehicle-to-vehicle communication system according to claim 1 based on LED car lamp, which is characterized in that the LED car lamp
(6) it is the head lamp or taillight of vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611035605.XA CN108082035A (en) | 2016-11-22 | 2016-11-22 | A kind of vehicle-to-vehicle communication system based on LED car lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611035605.XA CN108082035A (en) | 2016-11-22 | 2016-11-22 | A kind of vehicle-to-vehicle communication system based on LED car lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108082035A true CN108082035A (en) | 2018-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611035605.XA Pending CN108082035A (en) | 2016-11-22 | 2016-11-22 | A kind of vehicle-to-vehicle communication system based on LED car lamp |
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| CN (1) | CN108082035A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110497846A (en) * | 2019-09-10 | 2019-11-26 | 福建省汽车工业集团云度新能源汽车股份有限公司 | Vehicle signal lamp system, automotive control system and intelligent automobile |
| CN110562129A (en) * | 2019-08-26 | 2019-12-13 | Oppo（重庆）智能科技有限公司 | Vehicle information transmission method and device, storage medium and vehicle |
| CN111169475A (en) * | 2020-01-15 | 2020-05-19 | 北京汽车集团有限公司 | Vehicle collision early warning device and method and vehicle |
| CN111757568A (en) * | 2019-03-29 | 2020-10-09 | 首尔半导体株式会社 | Intelligent LED device and LED control system for vehicle comprising same |
| CN111934762A (en) * | 2020-08-17 | 2020-11-13 | 南京嘉视信电子有限公司 | LED tunnel lamp with optical communication function and optical communication system based on LED tunnel lamp |
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| CN111757568A (en) * | 2019-03-29 | 2020-10-09 | 首尔半导体株式会社 | Intelligent LED device and LED control system for vehicle comprising same |
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| CN111934762A (en) * | 2020-08-17 | 2020-11-13 | 南京嘉视信电子有限公司 | LED tunnel lamp with optical communication function and optical communication system based on LED tunnel lamp |
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