CN103647819A - Information loss compensation method in wireless link - Google Patents
Information loss compensation method in wireless link Download PDFInfo
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- CN103647819A CN103647819A CN201310649881.5A CN201310649881A CN103647819A CN 103647819 A CN103647819 A CN 103647819A CN 201310649881 A CN201310649881 A CN 201310649881A CN 103647819 A CN103647819 A CN 103647819A
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Abstract
The invention relates to the field of the car networking application technology, especially to an information loss compensation method in a wireless link. According to the method, a wireless environment protection optical or acoustic network is formed between a source node and neighboring nodes to carry out communication; the source node is allowed to transmit information of the source node to the neighboring nodes by a wireless environment protection optical or acoustic transmitting system of the node itself; and rapid self-organized unidirectional early warning or bidirectional interaction can be carried out between the neighboring nodes, so that traffic accidents like pileups and the like can be prevented. A node can transmit the information of the node itself and the collected road condition to a roadside fixed node by a wireless optical/acoustic way; and the roadside fixed node is then connected to a special-purpose intelligent traffic network. Because an information loss phenomenon occurs easily in optical and acoustic networks, the loss compensation unit uses an algorithm of combination non-supposition blind compensation and high-speed flow shaping, thereby ensuring reliable providing of human-vehicle interaction early warning and communication with interference.
Description
Technical field
The invention belongs to wireless 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, as the mobile node network of one of intelligent transportation system important foundation, under this context request, propose.All there is the problem of electromagnetic pollution in traditional communication network, injures not to the utmost human body and animal, and disturb the normal operation of engine and brake system.The basic thought of vehicle-mounted green MANET is that the mobile node in certain communication range exchanges the speed of a motor vehicle separately mutually by acousto-optic, the information such as position, and connect automatically the early warning net of setting up a movement.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, while or a router.Therefore the mode that adopts multi-hop 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, and the auxiliary function of driving is effectively avoided a chain of collision of mobile node, can utilize in addition roadside node access fixed network, realizes traffic control and information issue etc.
Such as exchange in time empty wagons with the wind for logistic industry, spell case lift-launch information on services, raise the efficiency; For unmanned shopping cart provides navigation Service, increase fail safe; For void, pulling fleet provides void to pull collocation service, reduces carbon discharge capacity.
The present invention is just under the green industry background based on above, 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 a kind of wireless link.This object realizes by the following method:
By harmless wireless optical/sound wave transceiver machine, the signal of telecommunication is converted to light/acoustical signal, light/acoustical signal is sent out by atmospheric channel, at receiving terminal, light/acoustical signal is focused in light/acousto-electric detection device, light/acousto-electric detection device converts light/acoustical signal to the signal of telecommunication.
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 self transport information around and sends other nodes in network to, and information also can be sent in this network by roadside node.The inventive method can be prevented the generation of severe traffic accidents.
Described system comprises: user interface, and 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.
According to the present invention proposes a kind of information in wireless link, mend the method for damaging.In the network of wireless optical harmony, all can there is the loss of bit or byte all the time, easier drop-out in mobile node is run at high speed particularly, traditional re-transmission error correction method is inoperative, and the object moving when by the time requiring to retransmit 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 carrying in addition power supply.The optical signal frequency that wireless optical/acoustic transceiver machine produces is adjustable: can covering visible light or invisible light, invisible light can be nanometer medium ripple, between microwave and infrared between, positioning precision is higher than ordinary radar; Can cover audible sound or audible sound not, audible sound can not be ultrasonic wave or infrasound yet.Wireless optical/acoustic transceiver all-in-one converts the signal of telecommunication to light/acoustical signal, and afferent message processing unit, is presented on terminal display after processing.Mobile node is at high-speed cruising state, and the information of losing is more than the information of makeing mistakes, and it is essential that the benefit of gathering materials on the spot is damaged function, so information process unit also comprises error correction and mends damage unit, realize the error correction of information coding and damage function with benefit, lower the error rate, improve the reliability of communication.The core of mend damaging unit is to utilize the shaping algorithm redundant information of time and space association of sublating, and space encoder is left for to 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 networking of the present invention
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 shown in Fig. 1 112 are closed, and when it is near car 104 time, car 112 can only be arrived according to SHAPE DETECTION by car 104.Car 106 is not installed system of the present invention, but it has daylight and penetrates (weak lamp) system, vehicle 104 is installed the system of current period engineering, vehicle 112 can be passive by vehicle 104, detected, vehicle 106 can initiatively be detected by vehicle 104 more accurately, engine horn by four direction sends the moderate sound, when between vehicle mutually near time remind each car driver.Car 108 is equipped with shooting and the acoustic systems of the second stage of the project and can read GPS information, and car 108 can be communicated by letter with car 104, and can in greasy weather situation, to car 104, provide GPS service.Car 102 is equipped with the AS of the third stage of the project, not only can communicate by letter with car 104, can also communicate by letter with roadside node 110, otherwise it also can relay weather conditions to car 108 by car 104, vehicle 102 is not in the situation that the greasy weather sees road conditions, and the road conditions video that can provide by vehicle 108 drives safely.In the vehicle group that vehicle 102 adds vehicle 108 to guide, can realize the void of vehicle 102 and pull automatic cruising.Vehicle 108 sharing video frequency information are also removed 102 parts that can see of vehicle, 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 and mend damage function, lower the error rate, make the communication of this system all reliable under all climatic conditions.
Shown in Fig. 2, on vehicle body, there are five acoustical generators, four engine loudspeaker are positioned on respectively left front, right front, left back, right back reminds each side to send a car and people, and the 5th is positioned on car bottom, and road pavement produces strong surface acoustic wave, with other vehicle greasy weather urgency communication, communications band is copied the coded system of wolf pack distress call frequency.
On vehicle body, there are five photoreceptors, press in left front respectively for four, right front, left back, right back sensation each side sends a car and people, and the 5th is positioned in car, uses and anti-theft feature is provided.Photoreceptor can be simple eye formula, or compound eye type, is used for judgement to come thing speed and distance; Each side's photoreceptor and acoustical generator be directly to connection, comes that thing speed is larger or distance is nearer, and sounding is stronger, and association algorithm can be mantis algorithm; Sound be take engine primary sound or simulated engine and is added Doppler effect as main; The latter is more practically applicable to emerging electric motor car, and electric automobile rate of failure 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 cleared away key obstacle.
In unmanned process, can use ant synergetic, record path; In void, pull in process, can use wild goose synergetic, regulate the speed.In two kinds of situations, all take light as main, sound, for applying, improves reliability.
By reference to the accompanying drawings enforcement of the present invention is done as detailed below:
According to the above, just can realize the present invention.Other variations and modification that those skilled in the art is made in the case of without departing from the spirit and scope of protection of the present invention, within being still included in protection range of the present invention.
Claims (7)
1. the information in wireless link is mended the method for damaging, the method comprises: the mobile node in a network, roadside stationary nodes, harmless wireless optical/road surface sound wave communication system that communication is carried with mobile node each other, each mobile node is furnished with non-directional object detecting device.
2. method as claimed in claim 1, the wireless optical/ground surface elastic wave with no electromagnetic pollution between mobile node communicates, good confidentiality, transinformation is large, to the electronic equipment of mobile node itself, disturbs little.
3. method as claimed in claim 1, fast automatic networking between mobile node, can complete information interaction, and emergency is reminded, and the auxiliary function of driving is effectively avoided a chain of collision of mobile node.
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 be collected self information and acoustic information around, the in the situation that of the low visibility such as greasy weather, these surface acoustic wave information is passed to vehicle around, the generation of prevention traffic accident.
7. method as claimed in claim 7, mobile node can utilize bionical encryption algorithm, such as mantis, bat, ant, honeybee, the sense and control technique methods such as wolf pack improve the reliability of systems, reduce manufacturing cost.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310649881.5A CN103647819A (en) | 2013-12-06 | 2013-12-06 | Information loss compensation method in wireless link |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310649881.5A CN103647819A (en) | 2013-12-06 | 2013-12-06 | Information loss compensation method in wireless link |
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| CN103647819A true CN103647819A (en) | 2014-03-19 |
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| CN201310649881.5A Pending CN103647819A (en) | 2013-12-06 | 2013-12-06 | Information loss compensation method in wireless link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105245293A (en) * | 2015-11-20 | 2016-01-13 | 福州市智聚物联科技有限公司 | Vehicle Internet of things system applying new-generation sound wave communication technology |
| CN108736159A (en) * | 2017-04-18 | 2018-11-02 | 柏思科技有限公司 | By multiple external antennas the system and method that auxiliary aims at are provided for Radio Link |
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| WO2002086814A1 (en) * | 2001-04-23 | 2002-10-31 | Hrl Laboratories, Llc | An on-line method for self-organized learning and extraction of fuzzy rules |
| CN102756748A (en) * | 2012-07-31 | 2012-10-31 | 上海中科高等研究院 | Train anticollision system on basis of sound wave communication and anticollision method thereof |
| CN104599493A (en) * | 2013-10-30 | 2015-05-06 | 史玉回 | Intelligent early warning method for Internet of vehicles |
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2013
- 2013-12-06 CN CN201310649881.5A patent/CN103647819A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002086814A1 (en) * | 2001-04-23 | 2002-10-31 | Hrl Laboratories, Llc | An on-line method for self-organized learning and extraction of fuzzy rules |
| CN102756748A (en) * | 2012-07-31 | 2012-10-31 | 上海中科高等研究院 | Train anticollision system on basis of sound wave communication and anticollision method thereof |
| CN104599493A (en) * | 2013-10-30 | 2015-05-06 | 史玉回 | Intelligent early warning method for Internet of vehicles |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105245293A (en) * | 2015-11-20 | 2016-01-13 | 福州市智聚物联科技有限公司 | Vehicle Internet of things system applying new-generation sound wave communication technology |
| CN105245293B (en) * | 2015-11-20 | 2017-03-08 | 福州睿创纺织科技有限公司 | A kind of vehicle Internet of things system of application a new generation sound wave communication technology |
| CN108736159A (en) * | 2017-04-18 | 2018-11-02 | 柏思科技有限公司 | By multiple external antennas the system and method that auxiliary aims at are provided for Radio Link |
| CN108736159B (en) * | 2017-04-18 | 2021-03-02 | 柏思科技有限公司 | System and method for providing assisted aiming for wireless links through multiple external antennas |
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Application publication date: 20140319 |
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