CN104599493A - Intelligent early warning method for Internet of vehicles - Google Patents
Intelligent early warning method for Internet of vehicles Download PDFInfo
- Publication number
- CN104599493A CN104599493A CN201310525333.1A CN201310525333A CN104599493A CN 104599493 A CN104599493 A CN 104599493A CN 201310525333 A CN201310525333 A CN 201310525333A CN 104599493 A CN104599493 A CN 104599493A
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- Prior art keywords
- mobile node
- information
- node
- acoustic
- early warning
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0965—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages responding to signals from another vehicle, e.g. emergency vehicle
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/161—Decentralised systems, e.g. inter-vehicle communication
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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
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
- H04B10/2513—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion
- H04B10/25133—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion including a lumped electrical or optical dispersion compensator
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2210/00—Indexing scheme relating to optical transmission systems
- H04B2210/25—Distortion or dispersion compensation
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Traffic Control Systems (AREA)
Abstract
The invention relates to the technical field of the Internet of vehicles, and particularly relates to an intelligent early warning method for the Internet of vehicles and a special loss compensation method in a wireless link thereof. A wireless environment-friendly optical or acoustic network is formed between a source node and neighboring nodes to carry out communication. The source node is allowed to transmit the information thereof to the neighboring nodes through a wireless environment-friendly optical or acoustic transmitting system of the source node, and rapid self-organized unidirectional early warning or bidirectional interaction can be carried out between the neighboring nodes so as to prevent the occurrence of pileup and other traffic accidents. A node can transmit the information thereof and collected road condition to a roadside fixed node in a wireless optical/acoustic mode, and then the roadside fixed node is connected to a special intelligent traffic network. A method for quick information loss compensation in the wireless link is further provided. Because information is prone to loss in an optical and acoustic air networks, a loss compensation unit uses an algorithm combining non-supposition blind compensation and high-speed flow shaping to ensure that reliable human-vehicle interaction early warning and communication can still be provided under interference.
Description
Technical field
The invention belongs to automobile industry technical field, the present invention relates to intelligent early-warning method and the specific algorithm of car networking.
Background technology
At present along with road traffic accident has become global public safety problem, the mobile node network as one of intelligent transportation system important foundation proposes under this context request.All there is the problem of electromagnetic pollution in traditional communication network, injures human body and animal not to the utmost, and the normal operation of interference engine and brake system.The basic thought of vehicle-mounted green MANET is that the mobile node in certain communication range exchanges the respective speed of a motor vehicle mutually by acousto-optic, the information such as position, and connection establishment plays the early warning net of a movement automatically.The single-hop communication scope of node only has hundreds of rice to a km, and each node (mobile node) is not only a transceiver, simultaneously or a router.Therefore the mode of multi-hop is adopted data retransmission to farther mobile node.Mobile node MANET can complete information interaction, and emergency is reminded, and sick car is monitored in real time, auxiliary driving function, effectively avoids the collision of the mobile node chain of rings, can utilize roadside node access fixed network in addition, realize traffic control and Information issued etc.
Such as spell case lift-launch information on services for logistic industry exchanges empty wagons with the wind in time, raise the efficiency; For unmanned shopping cart provides navigation Service, increase security; Pulling fleet for void provides void to pull collocation service, reduces carbon discharge capacity.
The present invention just based under above green industry background, a kind of motive objects networking intelligent early-warning communication service method of proposition.
Summary of the invention
The object of the invention is to propose the benefit damage method in the intelligent early-warning method of a kind of car networking and associated wireless link.This object realizes by the following method:
By harmless wireless optical/sound wave transceiver machine, electric signal is converted to light/acoustical signal, light/acoustical signal sent out by atmospheric channel, at receiving end, light/acoustical signal is focused in light/acousto-electric detection device, light/acousto-electric detection device converts light/acoustical signal to electric signal.
According to an aspect of the present invention, source mobile node and near form harmless wireless optical/comprehensive sound/optical-fiber network to carry out early warning communication between mobile node, in network, each node is collected the transport information around self and sends other nodes in network to, and information also can be sent in this network by roadside node.The inventive method can prevent the generation of severe traffic accidents.
Described system comprises: user interface, signal generator, harmless optical sender/acoustic emission terminal, harmless light source/sound source, utilizing emitted light/sound system, receives light/sound system, light/detector of sound, light/sound reception terminal, information process unit, terminal display.
The method of damaging is mended according to the present invention proposes a kind of information in wireless link.All the time the loss of bit or byte all can be there is in the network of wireless optical harmony, particularly easier drop-out in mobile node is run at high speed, traditional re-transmission error correction method is inoperative, and when by the time requiring to retransmit, the object of movement is not often in original place; Traditional not retransmit error correction method also inoperative, because coding limit is due to Doppler effect, is often lost.
The power drives that wireless optical/acoustic transceiver all-in-one can utilize mobile node to produce, without the need to carrying power supply in addition.The optical signal frequency that wireless optical/acoustic transceiver machine produces is adjustable: can covering visible light or invisible light, and invisible light can be nanometer medium ripple, between microwave and infrared between, positioning precision is higher than ordinary radar; Also can cover audible sound or not audible sound, audible sound can not be ultrasound wave or infrasonic wave.Wireless optical/acoustic transceiver all-in-one converts electric signal to light/acoustical signal, and afferent message processing unit, is presented on terminal display after process.Mobile node is in high-speed cruising state, and the information of losing is more than the information of makeing mistakes, and it is essential that benefit of gathering materials on the spot damages function, so information process unit also comprises error correction damage unit with benefit, the error correction realizing information coding damages function with benefit, lowers the bit error rate, improves the reliability of communication.Mending and damaging the core of unit is utilize shaping algorithm to sublate the redundant information of time and space association, space encoder is left for important code section Side marker information, guarantees the integrality of frame structure, so that the blind benefit algorithm of Intelligent Forecasting that implementation of class is gone out walking in the night like bat.
Accompanying drawing explanation
Fig. 1 is the traffic diagram of intelligent vehicle of the present invention networking
Fig. 2 is harmless wireless optical/sound communication figure detailed between mobile node of the present invention
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
All light sources of car 112 shown in Fig. 1 are closed, when it near car 104 time, car 112 can only be arrived according to SHAPE DETECTION by car 104.System of the present invention do not installed by car 106, but it has daylight and penetrates (weak lamp) system, the system of current period engineering installed by vehicle 104, vehicle 112 can be passive detected by vehicle 104, vehicle 106 can initiatively be detected by vehicle 104 more accurately, send the moderate sound by the engine horn of four direction, time close to each other between vehicle, remind each car driver.Car 108 is equipped with the shooting of the second stage of the project and acoustic systems and can read GPS information, and car 108 can communicate with car 104, and can GPS be provided to serve to car 104 in greasy weather situation.Car 102 is equipped with the AS of the third stage of the project, can not only communicate with car 104, can also communicate with roadside node 110, otherwise it also can relay weather conditions to car 108 by car 104, vehicle 102 is not when the greasy weather sees road conditions, and the road conditions video that can be provided by vehicle 108 carrys out safety traffic.Vehicle 102 adds the void that can realize vehicle 102 in the vehicle group that vehicle 108 guides and pulls automatic cruising.Vehicle 108 sharing video frequency information also removes the part that vehicle 102 can see, because intermediate node vehicle 104 does not have acoustic systems can not process a large amount of data messages, vehicle 102 can use intelligent correction to damage function with benefit, lower the bit error rate, make the communication of this system all reliable under all climatic conditions.
Vehicle body shown in Fig. 2 there are five acoustical generators, four engine loudspeaker are positioned on left front respectively, right front, left back, right back reminds each side to send a car and people, and the 5th is positioned on bottom car, and road pavement produces strong surface acoustic wave, with other vehicle greasy weather urgency communication, communications band copies the coded system of wolf pack distress call frequency.
Vehicle body has five photoreceptors, four respectively by left front, right front, left back, right back sensation each side sends a car and people, and the 5th is positioned in car, with anti-theft feature is provided.Photoreceptor can be simple eye formula, or compound eye type, is used for judgement to carry out thing velocity and distance; Each side's photoreceptor and acoustical generator directly to connection, come thing speed larger or distance nearer, sounding is stronger, and association algorithm can be mantis algorithm; Sound adds Doppler effect based on engine primary sound or simulated engine; The latter is more practically applicable to emerging electric motor car, and electric automobile accident rate is the twice of common car now, and the present invention calls on before the year two thousand twenty, for wideling popularize of New-energy electric vehicle clears away key obstacle.
In unmanned process, ant synergetic can be used, record path; Pull in process in void, wild goose synergetic can be used, regulate the speed.All based on light in two kinds of situations, sound is deposited, improves reliability.
By reference to the accompanying drawings enforcement of the present invention is done as detailed below:
According to the above, just the present invention can be realized.Other changes make in the case of without departing from the spirit and scope of protection of the present invention those skilled in the art and amendment, be still included within scope.
Claims (7)
1. the intelligent early-warning method of a car networking, the method comprises: be in the mobile node in a network, roadside stationary nodes, the harmless wireless optical that mutual communication mobile node carries/road surface acoustic communication system, each mobile node is furnished with non-directional object detecting device.
2. method as claimed in claim 1, communicates by the wireless optical of no electromagnetic pollution/ground surface elastic wave between mobile node, good confidentiality, and transinformation is large, disturbs little to the electronic equipment of mobile node itself.
3. method as claimed in claim 1, fast automatic networking between mobile node, can complete information interaction, and emergency is reminded, and auxiliaryly drives function, effectively avoids the collision of the mobile node chain of rings.
4. method as claimed in claim 1, in network and each node also can be used as router, adopt multi-hop that information is sent to farther movement or stationary nodes.
5. method as claimed in claim 1, mobile node is furnished with comprehensive object detecting device, adopts high-precision aiming follow-up service system, realizes the automatic cross-layer docking of optics/acoustic sensor.
6. method as claimed in claim 1, mobile node can collect self information and acoustic information around, when low visibility such as greasy weathers, these surface acoustic wave information is passed to the vehicle of surrounding, prevents the generation of traffic hazard.
7. method as claimed in claim 7, the sense and control technique methods such as mobile node can utilize bionical encryption algorithm, such as mantis, bat, ant, honeybee, wolf pack improve the reliability of system, reduce manufacturing cost.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310525333.1A CN104599493A (en) | 2013-10-30 | 2013-10-30 | Intelligent early warning method for Internet of vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310525333.1A CN104599493A (en) | 2013-10-30 | 2013-10-30 | Intelligent early warning method for Internet of vehicles |
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| Publication Number | Publication Date |
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| CN104599493A true CN104599493A (en) | 2015-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310525333.1A Pending CN104599493A (en) | 2013-10-30 | 2013-10-30 | Intelligent early warning method for Internet of vehicles |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647819A (en) * | 2013-12-06 | 2014-03-19 | 镇江市星禾物联科技有限公司 | Information loss compensation method in wireless link |
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- 2013-10-30 CN CN201310525333.1A patent/CN104599493A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647819A (en) * | 2013-12-06 | 2014-03-19 | 镇江市星禾物联科技有限公司 | Information loss compensation method in wireless link |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150506 |