CN107332613B - A kind of intelligent electric motor car V2V communication system based on LED visible light communication - Google Patents
A kind of intelligent electric motor car V2V communication system based on LED visible light communication Download PDFInfo
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- CN107332613B CN107332613B CN201710427873.4A CN201710427873A CN107332613B CN 107332613 B CN107332613 B CN 107332613B CN 201710427873 A CN201710427873 A CN 201710427873A CN 107332613 B CN107332613 B CN 107332613B
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- 230000003287 optical effect Effects 0.000 claims abstract description 37
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- 238000010521 absorption reaction Methods 0.000 claims description 2
- 238000012800 visualization Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005670 electromagnetic radiation Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- 230000004044 response Effects 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/116—Visible light communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/502—LED transmitters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/516—Details of coding or modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
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- Electromagnetism (AREA)
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- General Health & Medical Sciences (AREA)
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Abstract
The intelligent electric motor car V2V communication system based on LED visible light communication that the invention discloses a kind of, including VISIBLE LIGHT EMISSION unit and visible light receiving unit, VISIBLE LIGHT EMISSION unit is some electric signals generated in VCU, the High Speed Modulation visible light issued using vehicle LED is information carrier, electric signal is converted into optical signal, and emits this optical signal to free space；It can be seen that light receiving unit detects visible light using transparent glass formula solar panel, optical carrier is received, information of vehicles is obtained after decoding, and these information are transmitted to VCU.Compared with prior art, present system by optical signal send and receive come so that between vehicle and vehicle establish communicate, easy to operate, no electromagnetic interference, high reliablity.Present system uses acquisition device of the transparent glass formula solar panel as optical signal simultaneously, integrates transparent, keeps out the wind, charging and acquiring signal, greatly reducing the setting of hardware, save hardware cost and the energy.
Description
Technical field
The invention belongs to electric car fields of communication technology, and in particular to a kind of intelligence electricity based on LED visible light communication
Motor-car V2V communication system.
Background technique
With the development of battery technology and the propagation of environmental protection and energy saving theory, electric car is increasingly by the blueness of consumer
It looks at, while being also the project that government supports energetically.The design of electric vehicle is more and more intelligent, other than the intelligence system of bicycle,
Intelligent communication system between vehicle and vehicle is also particularly significant.Communication between vehicle and vehicle can share some data informations, before making
The vehicle of left and right can make correct response according to the information received afterwards.
At present V2V (vehicle-to-vehicle, vehicle-to-vehicle) communication research be mainly used in combination wireless communication technique,
Sensor technology, GPS technology and various radio broadcasting agreements.The use of traditional wireless communication technology is easy to lead to vehicle electronics
The precision instruments such as boat bring electromagnetic interference, and the electromagnetic radiation environment health that driver is in system generation for a long time is easy by shadow
It rings, while the use of radio broadcasting agreement is easy to produce broadcast storm, information leakage and fatigue driving.Visible light communication technology
Based on visible light emitting diode, the light carrier of the imperceptible high speed modulation of the naked eyes issued using taillight before automobile is believed
Number information is modulated and is transmitted, then receives optical carrier using electrooptical devices such as photodiodes and obtains
Information.
LED visible light communication belongs to green communications, and electromagnetic radiation is not present, to personal very safe, synchronous signal light source
Transmission power is high.In visible LED communication system, since communication light source is duplicate irrelevant visible with natural light
Light, therefore under normal circumstances without limiting transmission power；The device that visible light communication system needs than radio frequency system much less, this
Cost will be will be greatly reduced, and the high-luminous-efficiency of LED light source can be ignored the power consumption of data transportation requirements.
In addition, visible light communication technology is just gradually mature, standardized formulation is also being constantly updated and improved；China
A large amount of man power and material is also put into for the research of visible light communication, Tsinghua University and Fudan University etc. are in visible light communication
Aspect all achieves certain research achievement；Along with the arrival of 5G, it is seen that optic communication can undoubtedly become next-generation mainstream communication
Technology.Remarkable progress, researcher's research and development of Michigan State University are also obtained along with the research of transparent solar cell plate
A kind of fully transparent solar concentrator is gone out, it can be by any window or gamma transition at photovoltaic solar cell.
The Chinese patent of Publication No. CN105978990A propose a kind of automobile based on visible light communication see it is logical in real time
Letter system and communication means, including several optical transmitter and receivers, controller, information write-in device, information read device and memory lead to
Cross the sending and receiving to help people to establish with the people in other vehicles and communicate or " dialogue " in real time of optical signal, final energy
It is enough by language or it is other be more clear in a manner of prompt driver.The communication system is also based on visible light, but for light
Reception need to increase new device, to design new control module, need to put into larger cost on hardware, and for connecing
After receiving the signal that other vehicles transmit, emergency reaction cannot be directly made.The system only meets between vehicle and vehicle simultaneously
Communication function, in terms of energy storage without reference to.
Summary of the invention
In view of above-mentioned, the present invention provides a kind of intelligent electric motor car V2V communication system based on LED visible light communication, light
It receives and uses transparent glass formula solar panel, integrate signal acquisition and charging, light emitting uses the front and back LED vehicle of automobile
Lamp in case of emergency makes directly make a response under intelligent electric motor car is unattended, the generation to avoid traffic accident.
A kind of intelligent electric motor car V2V communication system based on LED visible light communication, the VCU with intelligent electric motor car
(Vehicle Control Unit, control unit for vehicle) is connected, which includes that VISIBLE LIGHT EMISSION unit and visible light connect
Receive unit；Wherein, the VISIBLE LIGHT EMISSION unit be used for by electric signal caused by VCU about speed, direction, with front and back vehicle
The modulates informations such as distance, body dimensions and GPS coordinate are loaded onto visible light, and then are sent out using LED car lamp to surrounding
It penetrates；The visible light receiving unit is used to detect the visible light of surrounding and is demodulated to obtain week to collected optical carrier
The traffic state information of vehicle is enclosed, and sends these information to VCU.
Preferably, the visible light receiving unit uses transparent glass formula solar panel, i.e., will be before and after intelligent electric motor car
The cowl of left and right is adapted as transparent glass formula solar panel, which had both been used as adopting for optical carrier
Acquisition means, while also as the absorption plant of luminous energy, so that the power-supply system for intelligent electric motor car charges.
Further, the transparent glass formula solar panel includes optical receiver and demodulator, when solar panel
Optical receiver receives the optical carrier issued from LED car lamp, then is translated into electric signal, then by demodulator by the electricity
Signal is converted into coded data, and then is sent to VCU by CAN bus.
Further, the visible light receiving unit includes PIN type optical detector, amplifier, filter and demodulator；
Wherein, PIN type optical detector is used to detect the visible light of surrounding and converts micro current signal for collected optical carrier,
Amplifier then amplifies the micro current signal, and filter is then filtered amplified micro current signal, and demodulator is then
Filtered micro current signal is demodulated to obtain the traffic state information of surrounding vehicles, and then is sent to by CAN bus
VCU。
Further, after the VCU carries out respective handling analysis to the information that visible light receiving unit provides, vehicle-mounted aobvious
Visualization display surrounding vehicles and its relevant information in display screen, and prompt and pre- is carried out by intelligent sound according to these information
It is alert, and mandatory control in case of emergency is carried out to vehicle.
Further, the VISIBLE LIGHT EMISSION unit includes LED modulation drive module and LED car lamp；Wherein, VCU will
It carries the electric signal of speed, direction and front-and-rear vehicle distance from information such as, body dimensions and GPS coordinates and passes through CAN bus and transmit
LED is given to modulate drive module, LED modulation drive module is using the visible light that LED car lamp is issued as carrier and by telecommunications
Relevant information modulation in number is loaded onto visible light, and then LED car lamp is driven to be emitted to surrounding.
Compared with prior art, the present invention is based on the intelligent electric motor car V2V communication systems of LED visible light communication is believed by light
Number send and receive come so that between vehicle and vehicle establish communicate, easy to operate, no electromagnetic interference, high reliablity.This hair simultaneously
Bright system uses acquisition device of the transparent glass formula solar panel as optical signal, collects transparent, keeps out the wind, charges and acquire letter
It number is integrated, greatly reduces the setting of hardware, save hardware cost and the energy.
Detailed description of the invention
Communication schematic diagram of the Fig. 1 between intelligent electric automobile of the present invention.
Fig. 2 is that the information of intelligent electric automobile of the present invention transmits schematic diagram.
Fig. 3 is the design diagram of intelligent electric automobile of the present invention.
Specific embodiment
In order to more specifically describe the present invention, with reference to the accompanying drawing and specific embodiment is to technical solution of the present invention
It is described in detail.
The intelligent electric motor car V2V communication system based on LED visible light communication that the invention proposes a kind of, so that vehicle and vehicle
It can be communicated by the system between, as shown in Figure 1.The communication system includes VISIBLE LIGHT EMISSION unit and visible light-receiving
Unit, it is seen that light emitting unit is used for that (information entrained by these electric signals to include some electric signals generated in automobile VCU
But be not limited to: the speed of automobile, direction, at a distance from the vehicle of front and back, bodywork height and width, GPS information etc.) sent out with vehicle LED
High Speed Modulation visible light out is information carrier, electric signal is converted into optical signal, and emit this optical signal to free space；
It can be seen that light receiving unit for detecting to photoelectric information, receives optical carrier, obtained after decoding vehicle essential information and
Traffic information, and these information are transmitted to the VCU of electric car, so that automobile is made corresponding operation according to the information received.
Wherein, it is seen that light emitting unit includes LED modulation drive module and LED transmitting module (i.e. LED car lamp), vehicle
VCU is encoded into electric signal for traffic information is simple and quick, and the electric signal after coding reaches LED modulation drive module through CAN bus
It is loaded on vehicle-mounted LED lamp and is modulated to visible light signal.
Visible light receiving unit uses transparent glass formula solar panel in present embodiment, i.e., before electric vehicle,
The transparent mode solar panel is all installed below with side, this transparent solar battery panel can be used as adopting for optical signal
Acquisition means, while can also be charged by absorbing optical signal to electric vehicle.
Transparent glass formula solar panel includes optical receiver and demodulator, is sent out when optical receiver is received from LED car lamp
Optical signal is then converted into electric signal by optical signal out, is then converted coded data for the electric signal by demodulator, is passed through
CAN bus is sent to the VCU of intelligent electric motor car.
As shown in Fig. 2, the specifying information transmission process of present embodiment V2V communication system is as follows:
(1) the information collection stage: vehicle in use, in addition to essential informations such as the width of vehicle and high and models
Outside, it there is also some action messages (change of such as speed, the conversion in direction, GPS positioning information etc.), these information are can be real
Shi Bianhua's, and the change of a certain driving information will affect the change that the vehicle behavior enclosed in same a road section last week is travelled with it
It is dynamic.In the present embodiment since intelligent electric automobile control system is fairly simple, VCU module controls the behavior of vehicle, this
A little information are encoded via VCU correlation module.
(2) information transmission phase: after VCU encodes information, being transmitted to LED by CAN bus and modulate drive module,
And launched by LED car lamp.
(3) information receives the stage: using visible light receiving unit, that is, transparent glass formula solar panel acquisition front truck or
It is the visible light that rear car is sent, which can be converted into collected optical signal electric signal, and electricity
Signal reaches in the control circuit of VCU, and electric vehicle is made to make certain prompt or emergency operation.Glass type solar panel removes
It is connected with the control module of VCU outer, is also connected with the power supply source of intelligent electric motor car, receives and convert same meeting signal
When, it can also charge the battery.
As shown in figure 3, present embodiment intelligent electric automobile includes the solar automobile for being mounted on place of keeping out the wind immediately ahead of vehicle body
Window 1 is mounted on subsequent solar energy vehicle window 2, is mounted on the solar energy vehicle window 3 of side and is mounted on vehicle body rear and front end
LED car lamp 4 and 5.LED car lamp 4 and 5 emits the visible light signal for being loaded with information of vehicles to free space, preceding solar automobile
Window 1 can receive the optical signal sent from front vehicles, and rear solar energy vehicle window can receive the light sent from vehicle below
Signal, the optical signal that vehicle window 3 then receives the vehicle of the left and right sides or rear ramp vehicle is sent.
The above-mentioned description to embodiment is for that can understand and apply the invention convenient for those skilled in the art.
Person skilled in the art obviously easily can make various modifications to above-described embodiment, and described herein general
Principle is applied in other embodiments without having to go through creative labor.Therefore, the present invention is not limited to the above embodiments, ability
Field technique personnel announcement according to the present invention, the improvement made for the present invention and modification all should be in protection scope of the present invention
Within.
Claims (4)
1. a kind of intelligent electric motor car V2V communication system based on LED visible light communication, is connected with the VCU of intelligent electric motor car,
Be characterized in that: the communication system includes VISIBLE LIGHT EMISSION unit and visible light receiving unit；Wherein, the VISIBLE LIGHT EMISSION list
Member for by electric signal caused by VCU about speed, direction and front-and-rear vehicle distance from, body dimensions and GPS coordinate information
Modulation is loaded onto visible light, and then is emitted using LED car lamp to surrounding；The visible light receiving unit is for detecting week
The visible light that encloses simultaneously demodulates collected optical carrier to obtain the traffic state information of surrounding vehicles, and these are believed
Breath sends VCU to；
The visible light receiving unit uses transparent glass formula solar panel, the i.e. glass that keeps out the wind by intelligent electric motor car all around
Glass plate is adapted as transparent glass formula solar panel, which had both been used as the acquisition device of optical carrier, simultaneously
Also as the absorption plant of luminous energy, so that the power-supply system for intelligent electric motor car charges；
The transparent glass formula solar panel includes optical receiver and demodulator, when the optical receiver of solar panel receives
The optical carrier issued from LED car lamp, then be translated into electric signal, then convert coding for the electric signal by demodulator
Data, and then VCU is sent to by CAN bus.
2. intelligent electric motor car V2V communication system according to claim 1, it is characterised in that: the visible light receiving unit
Including PIN type optical detector, amplifier, filter and demodulator；Wherein, PIN type optical detector be used for detect around can
Light-exposed and convert micro current signal for collected optical carrier, amplifier then amplifies the micro current signal, filter
Wave device is then filtered amplified micro current signal, and demodulator then is demodulated to obtain week to filtered micro current signal
The traffic state information of vehicle is enclosed, and then VCU is sent to by CAN bus.
3. intelligent electric motor car V2V communication system according to claim 1, it is characterised in that: the VCU is to visible light-receiving
After the information that unit provides carries out respective handling analysis, visualization display surrounding vehicles and its related letter on vehicle-carrying display screen
Breath, and prompt and early warning are carried out by intelligent sound according to these information, and mandatory control in case of emergency is carried out to vehicle
System.
4. intelligent electric motor car V2V communication system according to claim 1, it is characterised in that: the VISIBLE LIGHT EMISSION unit
Drive module and LED car lamp are modulated including LED；Wherein, VCU will carry speed, direction and front-and-rear vehicle distance from, vehicle body ruler
Very little and GPS coordinate information electric signal sends LED to by CAN bus and modulates drive module, and the LED modulates drive module
It is loaded onto visible light using the visible light that LED car lamp is issued as carrier and by the relevant information modulation in electric signal, in turn
Driving LED car lamp is emitted to surrounding.
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| CN201710427873.4A CN107332613B (en) | 2017-06-08 | 2017-06-08 | A kind of intelligent electric motor car V2V communication system based on LED visible light communication |
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| CN107911168A (en) * | 2017-11-30 | 2018-04-13 | 南京协众汽车空调集团有限公司 | A kind of car plate authentication method and device based on car light |
| CN108449136A (en) * | 2018-03-30 | 2018-08-24 | 厦门盈趣汽车电子有限公司 | Information communication system based on car bulb |
| CN109147391A (en) * | 2018-09-06 | 2019-01-04 | 南京邮电大学 | Based on visible light communication intelligent transportation system and alarm method and spacing keeping method |
| CN111034229A (en) * | 2018-09-30 | 2020-04-17 | 深圳市大疆创新科技有限公司 | Information processing method, device, carrier and storage medium |
| CN109861753A (en) * | 2019-02-25 | 2019-06-07 | 深圳第三代半导体研究院 | Based on InGaN microns of LED photovoltaic detector arrays and its application |
| CN109768830A (en) * | 2019-03-07 | 2019-05-17 | 西安电子科技大学 | Vehicle-mounted visible light communication receiving end device based on photovoltaic cell |
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| CN112437054B (en) * | 2020-11-11 | 2022-11-11 | 广州天行健汽车科技有限公司 | Vehicle ad hoc network safety control method based on optical transmission |
| CN112423057A (en) * | 2020-11-26 | 2021-02-26 | 湖北大学 | Vehicle-mounted visible light data communication system |
| CN114915338B (en) * | 2021-02-07 | 2023-12-08 | 中国联合网络通信集团有限公司 | Vehicle communication method and device |
| CN113037382A (en) * | 2021-03-24 | 2021-06-25 | 新疆大学 | Hybrid multi-beam visible light link communication system and method for motorcade interconnection |
| CN114268369A (en) * | 2021-12-20 | 2022-04-01 | 东南大学 | Inter-vehicle network communication system based on visible light |
| CN116155380B (en) * | 2023-04-24 | 2023-07-18 | 长春希达电子技术有限公司 | Vehicle-mounted optical communication signal transmitting device, signal communication device and vehicle |
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