CN103236171A - Traffic early-warning method, information transmitter, information receiver and traffic early-warning system - Google Patents

Traffic early-warning method, information transmitter, information receiver and traffic early-warning system Download PDF

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Publication number
CN103236171A
CN103236171A CN2013101572785A CN201310157278A CN103236171A CN 103236171 A CN103236171 A CN 103236171A CN 2013101572785 A CN2013101572785 A CN 2013101572785A CN 201310157278 A CN201310157278 A CN 201310157278A CN 103236171 A CN103236171 A CN 103236171A
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China
Prior art keywords
information
traffic
traffic prewarning
prewarning
plies
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CN2013101572785A
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Chinese (zh)
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CN103236171B (en
Inventor
李巧妹
李庆忠
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Individual
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Individual
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Priority to CN201310157278.5A priority Critical patent/CN103236171B/en
Priority to PCT/CN2013/076798 priority patent/WO2014176814A1/en
Publication of CN103236171A publication Critical patent/CN103236171A/en
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Publication of CN103236171B publication Critical patent/CN103236171B/en
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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
    • G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
    • G08G1/096766—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission
    • G08G1/096783—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission where the origin of the information is a roadside individual element
    • 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
    • G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
    • G08G1/096733—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place
    • G08G1/096741—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place where the source of the transmitted information selects which information to transmit to each vehicle
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
    • H04H20/55—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for traffic information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
    • H04H20/57—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for mobile receivers

Abstract

The invention relates to a traffic early-warning method, an information transmitter, an information receiver and a traffic early-warning system, belonging to the field of traffic safety. The traffic early-warning method, the information transmitter, the information receiver and the traffic early-warning system are automatically or manually or circularly triggered according to time period. Traffic early-warning information is processed and transmitted by technologies, i.e. the information processing, the radio receiving and transmitting, the directive antenna, the broadcast type communication, the relay retransmission, the alarm display and the like. The propagation path can be widened, the propagation mode can be improved, the propagation distance can be prolonged, and the propagation effectiveness and the information initiative can be improved. The sufficient information sharing among main bodies of the road traffic can be realized. The traffic safety early-warning where the abnormal situation does not form the actual danger, the early-warning distance reaches the furthest kilometer level, and the early-warning time reaches the longest minute level can be provided for vehicle drivers; and a traffic sign facility is used for transmitting the traffic sign information to a receiver on a vehicle through radio wave and transmitting to drivers, and preferably, the receiver transmits an active alarm signal corresponding to the received traffic sign information with the appointed type.

Description

Traffic prewarning method, sender, receiver and traffic prewarning system
Technical field
The present invention relates to the traffic safety field, in particular to a kind of traffic prewarning method, sender, receiver and traffic prewarning system.
Background technology
Road traffic transportation is being born extremely important role in that national economy is in service, it also is the important selection mode that people go on a journey, along with increasing of vehicle population, it is crowded, busy day by day that communications and transportation becomes, the different kinds of roads traffic hazard frequently takes place thereupon, for the generation that avoids traffic accident to greatest extent, take full advantage of the different kinds of roads traffic related information and carry out effective traffic safety early warning and become the urgent problem of pendulum in face of ours.
In the road traffic activity, the different kinds of roads traffic related information is most important to driver's safe driving, and concerning the driver, these road traffic condition information are exactly to have the early warning information that the traffic safety early warning is worth.At present, the source of this category information mainly comprises following approach: 1, road signs, mainly use literal or symbol to transmit guiding, restriction, warning or indication information; 2, the information display board on the road, characteristics are that the font that shows is very big usually, and display modes such as general employing rolling show that the driver often sees the content of discounting breath; 3, motor vehicle breaks down or traffic hazard takes place at road, block traffic and be difficult to mobile, the driver open hazard warning lamp according to the rules and behind car assigned position warning notice is set, also should open clearance lamps and rear lamp simultaneously night; 4. the vehicle drive people judges spacing, weather condition, road traffic situation by naked eyes.In the face of these early warning information, spontaneous, simple traffic safety early warning that the driver can make in order to instruct the driving behavior of oneself, improves traveling security.
Above-mentioned driver's traffic safety early warning behavior is present in its driving behavior naturally, it is the important step that guarantees safe driving, but this early warning behavior has significantly, the limitation that can't overcome: 1, the early warning information circulation way is original, need the driver to rely on naked eyes directly to observe, thereby the early warning information propagation distance is short and can be subjected to visual range inevitably, the visual angle, barrier, travel speed, illuminance, visibility, driver's state of mind, having a strong impact on of factors such as high light when dazzling sunlight or meeting, cause its early warning effect always unreliable, and the pre-warning time that obtains is short, early warning distance is near, and can't make early warning at the traffic outside the viewing area; 2, the coordination system that lacks systems engineering, can't obtain optimized early warning effect, early warning information has no initiative, can only wait for passively that the driver passes through the perception of human body sensory organ, there is not more effective transmit message channel between the main body of generation early warning information and the vehicle drive people, the driver also can't have an accident from car and unusual situation under initiatively other vehicles to the viewing area outside send early warning information or in the normal driving process, receive the early warning information that other traffic participation main bodys are sent outside the viewing area, make the early warning effect have a greatly reduced quality.These limitations of driver's early warning behavior tend to cause a chain of traffic accident frequently to take place, and cause a tremendous loss of lives and property loss, also cause the blocking-up of road traffic simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of traffic prewarning method, sender, receiver and traffic prewarning system, use information processing, transceiving, directional antenna, broadcast operation, relaying is transmitted, technical finesses such as alarm indication are also transmitted traffic prewarning information, widen its route of transmission, improve circulation way, prolong propagation distance, improve the validity of propagation and the initiative of information, realize that sufficient information is shared between each main body of road traffic, form reality before dangerous for the vehicle drive people is provided at abnormal conditions, early warning distance reaches the kilometer level farthest, pre-warning time reaches the traffic safety early warning of minute level most; Realize that simultaneously the traffic sign facility uses dispensing device (sender or traffic prewarning system) to transmit its traffic sign information and show or give the driver with voice broadcast to the receiving trap (receiver or traffic prewarning system) on the vehicle by radiowave, and, alternatively, corresponding to the traffic sign information of the given category of receiving, described receiving trap sends the active alarm signal.
A kind of traffic prewarning method is provided in an embodiment of the present invention, has comprised:
A. information sender is determined and the triggering traffic prewarning information corresponding with described traffic related information according to the traffic related information of input, and described traffic prewarning information triggers by automatic triggering, manual triggers or the time of pressing loop cycle;
B. described information sender is encoded described traffic prewarning information according to predetermined manner, obtains the traffic prewarning baseband signal, uses described traffic prewarning baseband signal that carrier wave is modulated and obtains modulated traffic prewarning signal;
C. described information sender is used the communication mode of broadcast type, and the modulated traffic prewarning signal that modulation is obtained carries out the emission of orientation or omnidirectional with the form of radiowave by emitting antenna;
D. the receiving party receives the modulated traffic prewarning signal that sends with the form of radiowave from specific direction;
E. described receiving party carries out demodulation to described modulated traffic prewarning signal and obtains the traffic prewarning baseband signal;
F. described receiving party decodes to described traffic prewarning baseband signal according to predetermined manner, obtains described traffic prewarning information;
G. the described traffic prewarning information that obtains according to decoding of described receiving party is made corresponding early warning output.
Preferably, after F, described traffic prewarning method also comprises:
H. described receiving party compares described traffic prewarning information with the traffic prewarning information set that needs to transmit, if being included in the described traffic prewarning information that needs to transmit, described traffic prewarning information concentrates, then,
I. successively the relaying that carries out the multilayer number at the described traffic prewarning information of same traffic related information is transmitted so that the hierarchy type topological structure is unidirectional between a plurality of described receiving parties, the maximum number of plies that described traffic prewarning information is transmitted by relaying is setting value.
Preferably, each described receiving party who is in the described hierarchy type topological structure also sends the forwarding number of plies when relaying is transmitted described traffic prewarning information;
Described receiving party under being positioned on one deck is obtaining also obtaining transmitting the number of plies when relaying is transmitted next described traffic prewarning information by radio reception, demodulation, decoding;
It is all different to be arranged in the described forwarding number of plies that the described receiving party on the described hierarchy type topological structure different layers sends, it is then identical to be positioned at the described forwarding number of plies that sends with the described receiving party on one deck, the described forwarding number of plies that described receiving party sends is that the forwarding number of plies that is positioned at the described receiving party's transmission on the last layer adds 1, and the forwarding number of plies that is positioned at the described receiving party's transmission on the ground floor is 1;
If the forwarding number of plies that described receiving party receives equals described setting value, if or described setting value be 0, then described receiving party does not transmit described traffic prewarning information.
Preferably, described traffic prewarning information comprise following any: traffic sign information, traffic control command and guide information, traffic abnormity information, speed information, traffic hazard warning message, vehicle trouble warning information, road surface parking warning information, spacing information warning, meteorological anomaly information, road abnormal information, vehicle abnormality information, transport condition information, special vehicle request give way information, hazardous materials transportation car information warning, calling for help information; And/or,
Preferably, described early warning output comprise following one or more: voice broadcast, literal demonstration, pattern displaying, signal lamp indication, color tips, electric signal output, idle contact output, audible alarm, light warning, vibration alarming.
The embodiment of the invention also provides a kind of above-mentioned each sender of traffic prewarning method that adopts,
Comprise: input and triggering assembly, first processing components, modulation component, emitting module;
Described input and triggering assembly, be used for providing the inputting interface of input traffic related information, and determine and the triggering traffic prewarning information corresponding with described traffic related information that according to the described traffic related information of input described traffic prewarning information is by automatic triggering, manual triggers or the time of pressing loop cycle triggering;
Described first processing components is used for described traffic prewarning information is encoded according to predetermined manner, obtains the traffic prewarning baseband signal;
Described modulation component is used for using described traffic prewarning baseband signal that carrier wave is modulated and obtains modulated traffic prewarning signal;
Described emitting module for the modulated traffic prewarning signal that modulation is obtained, uses the communication mode of broadcast type, carries out the emission of orientation or omnidirectional with the form of radiowave by emitting antenna.
Preferably, described input with trigger assembly comprise following one or more: button, selector switch, communication interface, motoring condition Acquisition Circuit, described motoring condition Acquisition Circuit comprise following one or more: air bag opening signal input interface, speed of a motor vehicle input interface, hazard warning lamp start signal input interface, engine failure indicator signal input interface.
The embodiment of the invention also provides a kind of above-mentioned each receiver of traffic prewarning method that adopts, and comprising: receiving unit, demodulation components, second processing components and output precision;
Described receiving unit be used for to receive the modulated traffic prewarning signal that sends with the form of radiowave from specific direction;
Described demodulation components is used for that described modulated traffic prewarning signal is carried out demodulation and obtains the traffic prewarning baseband signal;
Described second processing components is used for according to predetermined manner described traffic prewarning baseband signal being decoded, and obtains described traffic prewarning information, and makes corresponding early warning output order according to the described traffic prewarning information that obtains;
Described output precision is used for exporting corresponding early warning output according to described early warning output order.
Preferably, described output precision comprise following one or more: voice broadcast assembly, pilot lamp, image-text display, electric signal output precision, idle contact output precision, audible alarm assembly, light alarm assemblies, vibration alarming assembly.
The embodiment of the invention also provides a kind of traffic prewarning system that adopts above-mentioned each described traffic prewarning method,
Comprise: aforesaid sender, aforesaid receiver;
Described traffic prewarning system is fused to organic entity with function and the assembly of described sender and described receiver.
Preferably, described traffic prewarning system comprises that also relaying transmits Control Component;
Described relaying is transmitted Control Component, is used for there is the restriction of the max-forwards number of plies in the described traffic prewarning of control system to the described traffic prewarning information of appointment relaying forwarding.
Preferably, described relaying is transmitted Control Component the described traffic prewarning information that described traffic prewarning system receives is compared with the traffic prewarning information set that needs forwarding, if described traffic prewarning information is included in the described traffic prewarning information that needs to transmit and concentrates, and max-forwards number of plies setting value is greater than 0, then, further, do not transmit the number of plies or transmit the number of plies less than described setting value if do not comprise in the described modulated traffic prewarning signal that described traffic prewarning system receives, then, described relaying is transmitted Control Component and is controlled the described traffic prewarning information of described traffic prewarning system forwards and send the forwarding number of plies simultaneously, the described forwarding number of plies that sends is that the forwarding number of plies that receives adds 1, if do not comprise the forwarding number of plies in the described modulated traffic prewarning signal that described traffic prewarning system receives, then the forwarding number of plies of Fa Songing is 1.
Traffic prewarning method provided by the invention, sender, receiver and traffic prewarning system can reach following beneficial effect:
Traffic prewarning method of the present invention, sender, receiver and traffic prewarning system, the traffic related information that comes out according to concrete traffic conditions abstract is classified as traffic prewarning information, by automatic triggering, manual triggers or the mode that triggers by the time loop cycle trigger traffic prewarning information, use information processing, transceiving, directional antenna, broadcast operation, relaying is transmitted, technical finesses such as alarm indication are also transmitted traffic prewarning information, widen the route of transmission of traffic prewarning information, improve circulation way, prolong propagation distance, improve the validity of propagation and the initiative of information, realize that sufficient information is shared between each main body of road traffic, for being provided at abnormal conditions, the vehicle drive people forms reality before dangerous, early warning distance reaches the kilometer level farthest, pre-warning time reaches the traffic safety early warning of minute level most, the driver assistance people improves traveling security, thereby reduce incidence and the absolute quantity of traffic hazard, reduce casualties and property loss, ensure The coast is clear; Realize that simultaneously the traffic sign facility uses dispensing device (sender or traffic prewarning system) to transmit its traffic sign information and show or give the driver with voice broadcast to the receiving trap (receiver or traffic prewarning system) on the vehicle by radiowave, and, alternatively, traffic sign information corresponding to the given category of receiving, described receiving trap sends the active alarm signal, the application of these information transfer means, can widen the route of transmission of traffic sign information, increase the propagation distance of traffic sign information, improve the communication effect of traffic sign information, improve the traffic sign facility to the guiding of traffic behavior, restriction, warning or indicative function, guarantee driving safety and The coast is clear better.
Description of drawings
Fig. 1 shows the structural representation of traffic prewarning system among the embodiment.
Embodiment
Also by reference to the accompanying drawings the present invention is described in further detail below by specific embodiment.
Embodiment 1:
A kind of traffic prewarning method comprises:
A. information sender is determined and the triggering traffic prewarning information corresponding with described traffic related information according to the traffic related information of input, and described traffic prewarning information triggers by automatic triggering, manual triggers or the time of pressing loop cycle;
B. described information sender is encoded described traffic prewarning information according to predetermined manner, obtains the traffic prewarning baseband signal, uses described traffic prewarning baseband signal that carrier wave is modulated and obtains modulated traffic prewarning signal;
C. described information sender is used the communication mode of broadcast type, and the modulated traffic prewarning signal that modulation is obtained carries out the emission of orientation or omnidirectional with the form of radiowave by emitting antenna;
D. the receiving party receives the modulated traffic prewarning signal that sends with the form of radiowave from specific direction;
E. described receiving party carries out demodulation to described modulated traffic prewarning signal and obtains the traffic prewarning baseband signal;
F. described receiving party decodes to described traffic prewarning baseband signal according to predetermined manner, obtains described traffic prewarning information;
G. the described traffic prewarning information that obtains according to decoding of described receiving party is made corresponding early warning output.
Adopt the sender of above-mentioned traffic prewarning method, comprising: input and triggering assembly, first processing components, modulation component, emitting module;
Described input and triggering assembly, be used for providing the inputting interface of input traffic related information, and determine and the triggering traffic prewarning information corresponding with described traffic related information that according to the described traffic related information of input described traffic prewarning information is by automatic triggering, manual triggers or the time of pressing loop cycle triggering;
Described first processing components is used for described traffic prewarning information is encoded according to predetermined manner, obtains the traffic prewarning baseband signal;
Described modulation component is used for using described traffic prewarning baseband signal that carrier wave is modulated and obtains modulated traffic prewarning signal;
Described emitting module for the modulated traffic prewarning signal that modulation is obtained, uses the communication mode of broadcast type, carries out the emission of orientation or omnidirectional with the form of radiowave by emitting antenna.
Adopt the receiver of above-mentioned traffic prewarning method, comprising: receiving unit, demodulation components, second processing components and output precision;
Described receiving unit be used for to receive the modulated traffic prewarning signal that sends with the form of radiowave from specific direction;
Described demodulation components is used for that described modulated traffic prewarning signal is carried out demodulation and obtains the traffic prewarning baseband signal;
Described second processing components is used for according to predetermined manner described traffic prewarning baseband signal being decoded, and obtains described traffic prewarning information, and makes corresponding early warning output order according to the described traffic prewarning information that obtains;
Described output precision is used for exporting corresponding early warning output according to described early warning output order.
Adopt the traffic prewarning system of above-mentioned traffic prewarning method,
Comprise: aforesaid sender, aforesaid receiver;
Described traffic prewarning system is fused to organic entity with function and the assembly of described sender and described receiver.
Traffic prewarning method of the present invention, sender, receiver and traffic prewarning system, the traffic related information that comes out according to concrete traffic conditions abstract is classified as traffic prewarning information, by automatic triggering, manual triggers or the mode that triggers by the time loop cycle trigger traffic prewarning information, use information processing, transceiving, directional antenna, broadcast operation, relaying is transmitted, technical finesses such as alarm indication are also transmitted traffic prewarning information, widen the route of transmission of traffic prewarning information, improve circulation way, prolong propagation distance, improve the validity of propagation and the initiative of information, realize that sufficient information is shared between each main body of road traffic, for being provided at abnormal conditions, the vehicle drive people forms reality before dangerous, early warning distance reaches the kilometer level farthest, pre-warning time reaches the traffic safety early warning of minute level most, the driver assistance people improves traveling security, thereby reduce incidence and the absolute quantity of traffic hazard, reduce casualties and property loss, ensure The coast is clear; Realize that simultaneously the traffic sign facility uses dispensing device (sender or traffic prewarning system) to transmit its traffic sign information and show or give the driver with voice broadcast to the receiving trap (receiver or traffic prewarning system) on the vehicle by radiowave, and, alternatively, traffic sign information corresponding to the given category of receiving, described receiving trap sends the active alarm signal, the application of these information transfer means, can widen the route of transmission of traffic sign information, increase the propagation distance of traffic sign information, improve the communication effect of traffic sign information, improve the traffic sign facility to the guiding of traffic behavior, restriction, warning or indicative function, guarantee driving safety and The coast is clear better.
Need to prove:
Described sender; receiver; the traffic prewarning system both can be independent device; install or be placed in vehicle and means of transportation particularly on the traffic sign facility; or independent the layout; also can with vehicle control system; vehicle-mounted computer; collision avoidance system; automated driving system; navigator; drive recorder; radar for backing car; warning horn; other mobile units; the means of transportation particularly original function of traffic sign facility etc. merge; manufacture multifunctional equipment; combine together with vehicle or means of transportation, these all are included into invention which is intended to be protected.
Independent that arrange and be provided to described traffic prewarning system, sender or receiver telotism separately on vehicle or the means of transportation, equal, no subordinate concerns each other.By not having center control device or regional center control device in the whole distributed pre-alarming system that separate described traffic prewarning system, sender or receiver are formed jointly in the target alert zone, do not have to concentrate yet, unified reception, the facility of handling and releasing news, described traffic prewarning system, sender or receiver be independent, operation independently separately, coequally, directly transmits information each other.
Wherein, the early warning information that the described traffic prewarning system that is equipped with on the vehicle or receiver need the interior described traffic prewarning system of receiving target prewarning area or sender to send just can be finished warning function, simultaneously described traffic prewarning system or sender again described traffic prewarning system or the receiver in the target alert zone send one's own side's information, could satisfy the needs that described traffic prewarning system in the target alert zone or receiver are realized its warning function, isolated described traffic prewarning system, sender or the receiver of separate unit can't be realized warning function alone; And, the early warning information that the described traffic prewarning system that is equipped with on every vehicle or receiver only need described traffic prewarning system in the receiving target prewarning area or sender to send just can be finished warning function, and the realization of its warning function does not need the assisting of other facilities except described traffic prewarning system, sender or receiver.These working methods have determined the distributed nature of the traffic prewarning system be made up of described traffic prewarning method, sender, receiver and traffic prewarning system.
Because only from other vehicles, the traffic prewarning information that traffic such as means of transportation participate in main body just has early warning to be worth concerning the user of described traffic prewarning system, though so function that described traffic prewarning system has transmitted radio signal simultaneously and receives radio signals, but described traffic prewarning system receives only and is provided to other vehicles, on the means of transportation or the independent described traffic prewarning system that arranges, the radio signal that sender sends, and do not receive the radio signal of self sending, the method that realizes is according to different types of traffic prewarning information, adopts the relative position of reasonable Arrangement emitting antenna and receiving antenna respectively, stopping aggregate measures such as reception when selecting suitable transmit-receive position and sender for directional antenna realizes.
Embodiment 2:
A kind of traffic prewarning method comprises the steps:
Step 101, information sender are determined according to traffic related information and triggering traffic prewarning information;
Traffic related information be with relevant traffic conditions abstracts such as road traffic condition, vehicle condition, means of transportation, driving condition after information, such as traffic hazard, vehicle trouble, road congestion, traffic sign information, inclement weather etc.;
Traffic prewarning information comprises the early warning information of corresponding various abstract traffic related information, such as: traffic sign information, traffic control command and guide information, traffic abnormity information, speed information, traffic hazard warning message, vehicle trouble warning information, road surface parking warning information, spacing information warning, meteorological anomaly information, road abnormal information, vehicle abnormality information, transport condition information, special vehicle request give way information, hazardous materials transportation car information warning, calling for help information.Need to prove that traffic prewarning information is not limited to top listed scope, so long as the traffic conditions that maybe may have influence on driving behavior relevant with traffic, can abstract and definite its corresponding traffic prewarning information in classification back.Above-mentioned said unusual all relative normal conditions, people can judge in conjunction with the conventional knowledge of traffic by general knowledge;
Traffic related information obtains by input equipment, and automatic input mode is arranged, and manual input mode is also arranged.Automatically input equipment can be communication interface, motoring condition Acquisition Circuit, this Acquisition Circuit comprises: air bag opening signal input interface, speed of a motor vehicle input interface, hazard warning lamp start signal input interface, engine failure indicator signal input interface, such as: the traffic hazard warning message is imported when air bag is opened automatically by vehicle; Manually input equipment can be button, selector switch etc., manually import traffic prewarning information by the user, such as: traffic sign information, traffic control command and guide information are imported by the traffic administration personnel, road surface parking warning information, the special vehicle request information that gives way are imported by the driver, etc.
Be appreciated that traffic prewarning information does not comprise the detail of traffic conditions, but classification and the general character of concrete traffic conditions are extracted.The traffic prewarning information that relates in each step next all is a kind of early warning information of summary-type, and the recipient just obtains abstract traffic prewarning information, can not obtain the particular content of the corresponding site traffic situation of traffic prewarning information.
Article one, traffic prewarning information has been represented a class traffic related information, such as: the road abnormal information can be corresponding: a series of traffic related informations such as congestion in road, road maintenance, road barricade.
Simultaneously, a traffic related information also can correspondence be determined a plurality of traffic prewarning information, such as: the site traffic accident then can be determined: traffic prewarning information such as road abnormal information, traffic hazard warning message.
The triggering mode of traffic prewarning information has manual triggers, triggers automatically or triggers by the time loop cycle, for the traffic prewarning information of using manual triggers and triggering automatically, namely triggers traffic prewarning information in the input of traffic prewarning information.
Wherein manual triggers can adopt button, selector switch etc., and by manual input, manually mode such as select to import traffic prewarning information in the various traffic prewarning information that preset, described traffic prewarning information is triggered thereupon; Such as: vehicle sails the then traffic prewarning information of manual triggers meteorological anomaly information of fog-zone into; Manual triggers was called for help information when driver and vehicle were in trouble the needs emergency.
Automatically triggering can adopt according to a certain index whether the mode of the value of satisfying the criteria send out traffic prewarning information from movable contact, the traffic prewarning information that is obtained from travel condition of vehicle is used triggering automatically.Such as: safe automobile air bag is opened and can be triggered the traffic hazard warning message automatically.
By the mode that default time cycle circulation triggers, can be the interval time that specific traffic prewarning information setting circulation triggers, reach the predetermined circulation trigger interval time then to trigger this traffic prewarning information.Such as: be installed on sender on the traffic sign facility and reach the predetermined circulation trigger interval time and namely trigger traffic sign information.
The described traffic prewarning information of the same kind that triggers under the different condition also can change, such as: according to the difference of conditions such as the type of road traffic condition, weather condition, vehicle class, vehicle and transport condition, automatically or manually selected to send the described spacing information warnings of different warning distances by the user;
Step 102, information sender are encoded to the traffic prewarning information that triggers according to predetermined manner and are obtained the traffic prewarning baseband signal;
Wherein, traffic prewarning information coding is adopted existing coding techniques, traffic prewarning information is encoded, that is: the traffic prewarning information translation is become the electric impulse signal of regulation, in order to transmit by electric signal.
The predetermined manner of this coding is selected arbitrarily in existing coding techniques, as long as can guarantee that predetermined manner reaches receiving-transmitting sides and shares information when Code And Decode, then can arbitrarily set.
Step 103, information sender are used the encoded traffic prewarning baseband signal that obtains that carrier wave is modulated and are obtained modulated traffic prewarning signal;
The modulated traffic prewarning signal that obtains by modulated process carries the traffic prewarning baseband signal, and then has also just carried traffic prewarning information;
In order to improve anti-multipath propagation effect and the co-channel interference performance of radio signal propagation link in the subsequent step, preferably, modulation technique adopts COFDM technology (COFDM), and this technology is prior art.
Step 104, information sender is used the communication mode of broadcast type, and the modulated traffic prewarning signal that modulation is obtained carries out the emission of orientation or omnidirectional with the form of radiowave by emitting antenna;
The communication mode that uses broadcast type is in order to realize that sufficient information shares, and the early warning information that sends is passed to full detail take over party in the target alert zone, thereby improve the trustworthiness of early warning, prevents false dismissal.
This radiowave adopts the radiation pattern of orientation or omnidirectional, directed selected direction be the direction of advancing with vehicle as with reference to, and omnidirectional refers on all directions, the radio wave intensity is the same, there is not directivity, it is in order to improve the target of early warning that different traffic prewarning information adopts orientation or theaomni-directional transmission respectively, reduces and even stops false-alarm and false dismissal.Such as: traffic sign information sends to direction to the car, and the special vehicle request information that gives way sends to direction of traffic, and the transmission of calling for help information is then non-directional.
It is pointed out that information sender in emission during radiowave, by the difference of the kind of its entrained early warning information, select respectively to use the share channel of planning in advance or monopolize channel.Such as: the traffic hazard warning message is used the share channel emission, and traffic control command and guide information, traffic sign information are used and monopolized the channel emission;
Preferably, be easy to handle electronic signal in order to make electronic circuitry involved, the carrier wave in the step 103 is selected lower frequency for use, uses the difference frequency technology then, is the frequency of the channel of planning in advance with the carrier frequency shift of modulated traffic prewarning signal;
The difference frequency technology adopts prior art to implement;
The emission of radiowave adopts existing technology to implement.
Step 105, the receiving party receives the described modulated traffic prewarning signal that sends with the form of radiowave from specific direction;
Specific direction be the direction of advancing with vehicle as with reference to, the traffic conditions that exists on the different directions of direction as reference of advancing with vehicle or take place is different to the threaten degree that safety traffic was constituted of vehicle, purpose corresponding to the traffic safety early warning, pay close attention to the traffic prewarning information that specific direction sends targetedly and can make the early warning that has more availability, such as, receive the traffic hazard warning message that send in the place ahead, receive the special vehicle request of sending at the rear information that gives way, receive calling for help information that all directions send etc., all be specific aim and the trustworthiness in order to improve early warning, reduce false-alarm and false dismissal situation.
Preferably, be easy to handle electronic signal in order to make electronic circuitry involved, use the difference frequency technology that the carrier frequency shift of the modulated traffic prewarning signal that receives is lower frequency;
The reception of radiowave adopts existing technology to implement.
Step 106, the receiving party carries out demodulation to modulated traffic prewarning signal and obtains the traffic prewarning baseband signal;
Existing techniques in realizing is adopted in demodulation, and by demodulation, the entrained traffic prewarning baseband signal of modulated traffic prewarning signal obtains reappearing.
Step 107, the receiving party decodes to the traffic prewarning baseband signal according to predetermined manner and obtains traffic prewarning information;
Decoding is the inverse process of coding, use existing techniques in realizing, the predetermined manner of decoding is the mode corresponding with the predetermined manner of coding in the step 102, by decoding, be that specific electric impulse signal converts corresponding traffic prewarning information to the traffic prewarning baseband signal, thus the transmission that between information sender and receiving party, realizes traffic prewarning information with share.
Step 108, the traffic prewarning information that the receiving party obtains according to decoding are made corresponding early warning output;
Early warning output comprises various demonstrations or warning, such as: voice broadcast, literal demonstration, pattern displaying, signal lamp indication, color indication, electric signal output, idle contact output, audible alarm, light warning, vibration alarming etc. are that the driver uses described traffic prewarning method to obtain the direct link of early warning information.
Above-mentioned early warning output is divided into the early warning output that the driver is sent and the early warning output that mobile unit is sent.The early warning output that the driver is sent comprises: actively early warning, such as: light is reported to the police, acoustic alarm, effect is to send alarm signal, it is a kind of behavior of initiatively pointing out, can cause user's concern in outstanding mode, and accept concrete information, their startup is removed corresponding to user's instruction or the arrival of Preset Time corresponding to the arrival of information; Passive early warning, such as: signal lamp indication, picture and text show do not have initiative, need the user independently to observe just and can obtain information, and the disappearance corresponding to information is removed in coming into force corresponding to the existence of information of these early warning.The early warning that mobile unit is sent comprises electric signal output, idle contact output etc., and effect is to cooperate, link with the mobile unit with other functions, triggers it and enters duty, to realize the systematization control to traffic safety.
Because traffic prewarning information is corresponding to various traffic conditions, the different traffic conditions that exist on the road or take place are different to the threaten degree that the safety traffic of vehicle constitutes, therefore different traffic prewarning information also are distinguishing to the significance level of traffic safety, for this reason, purpose corresponding to the traffic safety early warning, different characteristics and effect with various early warning outputs, at the different types of traffic prewarning information that receives, the receiving party can select to make the combination of wherein a kind of early warning output or multiple early warning output to the driver, to improve validity and the dirigibility of early warning, obtain optimized early warning effect.
Embodiment 3:
Step 101-107 among the continuity embodiment 2, traffic safety there is the forewarning function of the traffic prewarning information of direct important meaning in order more to give full play to part, amplify the early warning effect, the receiving party bears and carry out the obligation that relaying is transmitted after receiving this type of traffic prewarning information, between a plurality of described receiving parties, successively described traffic prewarning information is carried out the forwarding of multilayer number so that the hierarchy type topological structure is unidirectional, along with successively carrying out that relaying is transmitted, this type of traffic prewarning information is further propagated into farther place, thereby make the receiving party who receives forwarding information increase early warning distance, and then obtaining longer pre-warning time, the safety benefit that the traffic safety early warning brings is more remarkable.
But, if traffic prewarning information is forwarded to unlimited distance, the early warning of this information is worth and will be reduced to zero, and whole pre-alarming system had a negative impact, cause a large amount of false-alarms, reduce the trustworthiness of early warning, therefore, for preventing that the advantage that relaying is transmitted from being abused, the maximum number of plies of being transmitted by relaying at the traffic prewarning information of same traffic related information is limited, thus the propagation distance farthest that the restricting traffic early warning information is transmitted by relaying.
3 receiving parties of supposition participate in transmitting among this embodiment, are respectively receiving party A, receiving party B, receiving party C, and the default max-forwards number of plies is the 2(setting value), namely traffic prewarning information allows to be forwarded at most 2 layers.
Step 201, receiving party A receives modulated traffic prewarning signal, its demodulation, decoding are only obtained traffic prewarning information, do not obtain transmitting the number of plies, so can determine that this information that the information sender of this early warning information sends is the information of himself determining and triggering, rather than the information of transmitting, that is: this traffic prewarning information was not forwarded;
Step 202, receiving party A compares the traffic prewarning information that obtains with the traffic prewarning information set that needs to transmit;
If this traffic prewarning information is included in the traffic prewarning information that needs to transmit and concentrates, then carry out step 203.
Step 203, the traffic prewarning information of receiving party A are carried out the first time and are transmitted;
Concrete operations are: receiving party A determines oneself for transmitting for the first time, determines that then the forwarding number of plies that oneself will send is 1;
Receiving party A encodes traffic prewarning information and the forwarding number of plies (1) according to predetermined manner, modulation obtains the modulated traffic prewarning signal that oneself needs transmission;
Receiving party A uses the communication mode of broadcast type, modulated traffic prewarning signal is carried out the emission of orientation or omnidirectional with the form of radiowave by emitting antenna.
Step 204, receiving party B receives the modulated traffic prewarning signal that is sent by receiving party A, and its demodulation, decoding are obtained traffic prewarning information and transmit the number of plies (1);
Step 205, receiving party B compares the traffic prewarning information that obtains with the traffic prewarning information set that needs to transmit,
This traffic prewarning information is included in the traffic prewarning information that needs to transmit and concentrates;
Simultaneously, the forwarding number of plies (1) that receives is less than the default max-forwards number of plies (2), so, carry out step 206.
Step 206, the traffic prewarning information of receiving party B are carried out the second time and are transmitted;
Concrete operations are: receiving party B determines that according to the forwarding number of plies (1) that receives the forwarding number of plies that oneself will send is 2;
Receiving party B encodes traffic prewarning information and the forwarding number of plies (2) according to predetermined manner, modulation obtains the modulated traffic prewarning signal that oneself needs transmission;
Receiving party B uses the communication mode of broadcast type, modulated traffic prewarning signal is carried out the emission of orientation or omnidirectional with the form of radiowave by emitting antenna.
Step 207, receiving party C receives the modulated traffic prewarning signal that is sent by receiving party B, and its demodulation, decoding are obtained traffic prewarning information and transmit the number of plies (2);
Step 208, receiving party C compares the traffic prewarning information that obtains with the traffic prewarning information set that needs to transmit,
This traffic prewarning information is included in the traffic prewarning information that needs to transmit and concentrates;
But, the max-forwards number of plies (2) that the forwarding number of plies (2) that receives equals to preset, receiving party C does not transmit this traffic prewarning information.
So far finished the relaying at the default max-forwards number of plies of the traffic prewarning information of same traffic related information has been transmitted.
By that analogy, can realize that the max-forwards number of plies of presetting is the relaying forwarding of the situation of other numerical value.In this manner, the max-forwards number of plies of being transmitted by relaying at the traffic prewarning information of same traffic related information is that the max-forwards number of plies that can be preset limits, thereby be controlled at the traffic prewarning information of the same traffic related information propagation distance farthest after relaying is transmitted, can not occur propagating into the situation of unlimited distance with one at the traffic prewarning information of same traffic related information, thereby guarantee the trustworthiness that traffic prewarning is exported.
Forwarding for performing step 201-208, described traffic prewarning system comprises that also relaying transmits Control Component, this described relaying is transmitted Control Component, be used for the described traffic prewarning information that described traffic prewarning system receives is compared with the traffic prewarning information set that needs forwarding, if described traffic prewarning information is included in the described traffic prewarning information that needs to transmit and concentrates, and max-forwards number of plies setting value is greater than 0, then, further, do not transmit the number of plies or transmit the number of plies less than described setting value if do not comprise in the described modulated traffic prewarning signal that described traffic prewarning system receives, then, described relaying is transmitted Control Component and is controlled the described traffic prewarning information of described traffic prewarning system forwards and send the forwarding number of plies simultaneously, the described forwarding number of plies that sends is that the forwarding number of plies that receives adds 1, if do not comprise the forwarding number of plies in the described modulated traffic prewarning signal that described traffic prewarning system receives, then the forwarding number of plies of Fa Songing is 1.
Need to prove, following one deck transmit the number of plies be last layer transmit the number of plies add 1 mode be one for example, following one deck is transmitted the number of plies can determine that on the basis that last layer is transmitted the number of plies this all belongs to protection scope of the present invention according to setting means.
Embodiment 4: be the sender of example with the traffic mark board
A kind of sender, as traffic mark board, what have the ordinary road traffic mark board is used for show label pattern, the panel of literal and pattern, the literal of traffic sign, be integrated with a sender described in the embodiment 1 and solar power supply apparatus simultaneously at the back side of pattern, literal, the directional transmitting antenna of sender is installed in the side of sign board, the direction that the direction directional bea con board panel of antenna has the one side of pattern and literal to face, this traffic mark board can send traffic sign information to vehicle by radiowave;
The traffic administration personnel select the traffic sign information consistent with this traffic sign pattern, word content as the work at present information of this sender in being preset in the traffic sign information of sender inside by button, the circulation sender time interval is set simultaneously, this is preferably 10 seconds at interval, and receiver served as interval its work at present information of directive sending concrete traffic sign information of this traffic sign just with 10 seconds namely behind the connection power supply;
The vehicle that is equipped with receiver described in the embodiment 1 or traffic prewarning system is in the coverage of sailing the modulated traffic prewarning signal that this traffic sign sends into the time, receive the traffic sign information that it sends, and this traffic sign information shown by image-text display, yellow indicator lamp is glittering simultaneously, notes the traffic sign information of its demonstration to cause the driver.If what receiver or traffic prewarning system were received is the traffic sign information that traffic safety is had direct important meaning, also send prompt tone by hummer, alternatively, receiver or traffic prewarning system can also give the driver with voice broadcast with the traffic sign information that receives;
Solar power supply apparatus adopts existing techniques in realizing;
This traffic mark board sends to described traffic prewarning system or receiver vehicle on the communication mode of broadcast type with its traffic sign information by radiowave, realize that the traffic sign facility transmits its traffic sign information and shows or give the driver with voice broadcast to the receiving trap on the vehicle by radiowave, and, corresponding to the traffic sign information of the given category of receiving, receiving trap sends the active alarm signal;
This traffic mark board can be widened the communication effect of the route of transmission of traffic sign information, the propagation distance that increases traffic sign information, raising traffic sign information, improve the traffic sign facility to guiding, restriction, warning or the indicative function of traffic behavior, guarantee driving safety and The coast is clear better.
Next, the present invention will by a structure more specifically device describe the traffic prewarning system described in this embodiment 1 in detail:
Embodiment 5:
A kind of traffic prewarning system is divided into as lower module (shown in Figure 1) power module, load module 2, information processing, control module 3, modulation module 4, radio transmission and receiver module (radio-frequency module) 5, output module 6 on the function.In this system, first processing components, second processing components, relaying are transmitted Control Component and are synthesized information processing, control module 3, modulation component and demodulation components synthesize modulation module 4, emitting module and receiving unit synthesize radio transmission and receiver module (radio-frequency module) 5, input is load module 2 with triggering assembly, and output precision is output module 6.
The circuit of each functional module constitutes and specifically working method is as follows:
Described power module offers the required working power of described traffic prewarning system, is made up of 12V direct supply input interface, 12V/5V voltage conversion circuit, chargeable lithium cell, lithium cell charging control circuit.Power module picks out the 12V direct supply from the independent loop in the car insurance box, the power supply that the operation of the described traffic prewarning of confession system is required and the charge power supply of described chargeable lithium cell, have an accident at vehicle and cause described traffic prewarning system to lose under the abnormal conditions of 12V direct supply etc., be its power supply by described chargeable lithium cell, externally send reliably to guarantee accident information.
Described load module 2 is made up of keyboard, car status information acquisition interface circuit.Keyboard comprise accident sender, vehicle trouble sender, meteorological anomaly sender, the unusual sender of road, the unusual sender of transport condition, special vehicle request give way sender, hazardous materials transportation car sender, call for help senders such as sender and start button and stop buttons such as sender, audible and visual alarm signal relief, be used for the work that the end user manually intervenes described traffic prewarning system.Described car status information acquisition interface circuit comprises speed of a motor vehicle input interface, air bag opening signal input interface, hazard warning lamp start signal input interface, engine failure indicator signal input interface, and all input interface circuits all use optical coupling isolation circuit to prevent scurrying into of external interference signals.The function of described load module 2 be the described traffic prewarning of control system sender, stop news, alarm signal noise reduction etc.
Described information processing, control module 3 are made up of microprocessor, storer and auxiliary circuit, be responsible for handling the information of described load module 2 inputs and it is outputed to described modulation module 4, also handle described modulation module 4 signal transmitted simultaneously and it is transferred to described output module 6, if the information of receiving is the warning category information directly related with traffic safety, described information processing, control module 3 will be controlled the automatic relay of described system immediately and transmit this warning category information, to increase the warning distance of this warning category information.Described information processing, control module 3 also are responsible for the operation control of described traffic prewarning system.
Described modulation module 4 is made up of modulation, demodulator circuit and medium-frequency generator circuit etc., the responsible data that described signal processing module 3 is transmitted to intermediate-freuqncy signal (preferably, the frequency of described intermediate-freuqncy signal is selected 30MHz for use) modulate and be transferred to described radio transmission and receiver module (radio-frequency module) 5, also the described radio transmission of demodulation and receiver module (radio-frequency module) 5 receive the intermediate-freuqncy signal that generates after the radiofrequency signal and the data transmission that demodulation is come out are arrived described signal processing module 3 simultaneously.The modulation of signal, demodulation mode adopt coded orthogonal division modulation (COFDM), to improve anti-multipath propagation effect and co-channel interference performance.
Described radio transmission and receiver module (radio-frequency module) 5 comprises RF transmit-receive circuit, antenna, be responsible for the modulated intermediate-freuqncy signal that described modulation module 4 transmission are next and radio-frequency (RF) local oscillator signal (preferably, select superhigh frequency band for use) launched by described antenna behind the difference frequency, the radiofrequency signal difference frequency that also described antenna is received is intermediate-freuqncy signal and is transferred to described modulation module 4 simultaneously.Described antenna has directivity, is made up of forward facing antenna and rearward-facing antenna, and rearward-facing antenna is emitting antenna, is used for described traffic prewarning system and sends information to the rear of vehicle, and forward facing antenna is receiving antenna, is used for receiving the information that front vehicles is sent.
Described output module 6 is by output interface, LCD, pilot lamp, audio drive circuitry and loudspeaker are formed, be responsible for to show or receive and information after each modular circuit processing with the described traffic prewarning of voice broadcast system, the duty that shows described traffic prewarning system, send the audible and visual alarm signal and start optional interlocking equipment (as thermal camera by described output interface corresponding to the warning category information that receives, the forward direction radar, collision avoidance system, automated driving system etc.), realize the control of traffic safety early warning system and vehicle safety, cooperation between the emergency action system, and then reach the optimization that causes the traffic safety intervention effect.Described output interface circuit uses optical coupling isolation circuit to prevent scurrying into of external interference signals.
The mode that described traffic prewarning system starts sender comprise according to default vehicle condition condition start automatically sender, by the user manually boot sender, by default time cycle loop start sender.By radiowave, transmit information with the communication mode of broadcast type between the separate described traffic prewarning system individuality; To the modulation system of carrier wave, preferably, use coded orthogonal division modulation (COFDM), to improve anti-multipath propagation effect and co-channel interference performance; By the difference of the early warning information classification that sends, select by the share channel planned in advance respectively or monopolize the channel sender.
The information that described traffic prewarning system receives is shown by pilot lamp or display screen after the internal logic judgment processing or gives the end user with voice broadcast, receive the information of particular types (preferably, receive the warning category information directly related with traffic safety) time, described traffic prewarning system sends audible and visual alarm and this warning category information is transmitted in automatic relay to the end user immediately, to increase its warning distance, when the distributed pre-alarming system that the described traffic prewarning system in the target alert zone forms is transmitted a concrete described information at relaying, its max-forwards number of plies is subjected to the restriction (purpose is the maximum distance that the restriction early warning information is transmitted to a distant place, in order to avoid cause false-alarm) of artificial predefined numerical value.
In the ken that those of ordinary skills possess, present embodiment can also make a variety of changes under the prerequisite that does not break away from aim of the present invention, for example: described traffic prewarning system both can manufacture information receiving function, message sending function in the device of one, also can manufacture the device of message sending function, the split of information receiving function, i.e. sender, receiver; Described traffic prewarning system can manufacture independent device, install or be placed on vehicle and the means of transportation, or independent the layout, also can with vehicle control system, vehicle-mounted computer, collision avoidance system, automated driving system, navigator, drive recorder, radar for backing car, warning horn, other mobile units, means of transportation particularly the original function of traffic sign facility etc. merge, manufacture multifunctional equipment; The modulation system of carrier signal also can adopt other modulation systems that is fit to; The frequency of carrier wave can be selected the proper frequency of appropriate authority approval for use.
Obviously, those of ordinary skill in the art should be understood that, described each module of the present invention of above-mentioned several embodiment or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the memory storage and be carried out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for the person of ordinary skill of the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (11)

1. a traffic prewarning method is characterized in that, comprising:
A. information sender is determined and the triggering traffic prewarning information corresponding with described traffic related information according to the traffic related information of input, and described traffic prewarning information triggers by automatic triggering, manual triggers or the time of pressing loop cycle;
B. described information sender is encoded described traffic prewarning information according to predetermined manner, obtains the traffic prewarning baseband signal, uses described traffic prewarning baseband signal that carrier wave is modulated and obtains modulated traffic prewarning signal;
C. described information sender is used the communication mode of broadcast type, and the modulated traffic prewarning signal that modulation is obtained carries out the emission of orientation or omnidirectional with the form of radiowave by emitting antenna;
D. the receiving party receives the modulated traffic prewarning signal that sends with the form of radiowave from specific direction;
E. described receiving party carries out demodulation to described modulated traffic prewarning signal and obtains the traffic prewarning baseband signal;
F. described receiving party decodes to described traffic prewarning baseband signal according to predetermined manner, obtains described traffic prewarning information;
G. the described traffic prewarning information that obtains according to decoding of described receiving party is made corresponding early warning output.
2. traffic prewarning method according to claim 1 is characterized in that,
After F, described traffic prewarning method also comprises:
H. described receiving party compares described traffic prewarning information with the traffic prewarning information set that needs to transmit, if being included in the described traffic prewarning information that needs to transmit, described traffic prewarning information concentrates, then,
I. successively the relaying that carries out the multilayer number at the described traffic prewarning information of same traffic related information is transmitted so that the hierarchy type topological structure is unidirectional between a plurality of described receiving parties, the maximum number of plies that described traffic prewarning information is transmitted by relaying is setting value.
3. traffic prewarning method according to claim 2 is characterized in that,
Each described receiving party who is in the topological structure of hierarchy type described in the claim 2 also sends the forwarding number of plies when relaying is transmitted described traffic prewarning information;
Described receiving party under being positioned on one deck is obtaining also obtaining transmitting the number of plies when relaying is transmitted next described traffic prewarning information by radio reception, demodulation, decoding;
It is all different to be arranged in the described forwarding number of plies that the described receiving party on the described hierarchy type topological structure different layers sends, it is then identical to be positioned at the described forwarding number of plies that sends with the described receiving party on one deck, the described forwarding number of plies that described receiving party sends is that the forwarding number of plies that is positioned at the described receiving party's transmission on the last layer adds 1, and the forwarding number of plies that is positioned at the described receiving party's transmission on the ground floor is 1;
If the forwarding number of plies that described receiving party receives equals described setting value, if or described setting value be 0, then described receiving party does not transmit described traffic prewarning information.
4. according to each described traffic prewarning method of claim 1-3, it is characterized in that,
Described traffic prewarning information comprise following any: traffic sign information, traffic control command and guide information, traffic abnormity information, speed information, traffic hazard warning message, vehicle trouble warning information, road surface parking warning information, spacing information warning, meteorological anomaly information, road abnormal information, vehicle abnormality information, transport condition information, special vehicle request give way information, hazardous materials transportation car information warning, calling for help information;
And/or,
Described early warning output comprise following one or more: voice broadcast, literal demonstration, pattern displaying, signal lamp indication, color tips, electric signal output, idle contact output, audible alarm, light warning, vibration alarming.
5. one kind is adopted each the sender of traffic prewarning method of claim 1-4, it is characterized in that,
Comprise: input and triggering assembly, first processing components, modulation component, emitting module;
Described input and triggering assembly, be used for providing the inputting interface of input traffic related information, and determine and the triggering traffic prewarning information corresponding with described traffic related information that according to the described traffic related information of input described traffic prewarning information is by automatic triggering, manual triggers or the time of pressing loop cycle triggering;
Described first processing components is used for described traffic prewarning information is encoded according to predetermined manner, obtains the traffic prewarning baseband signal;
Described modulation component is used for using described traffic prewarning baseband signal that carrier wave is modulated and obtains modulated traffic prewarning signal;
Described emitting module for the modulated traffic prewarning signal that modulation is obtained, uses the communication mode of broadcast type, carries out the emission of orientation or omnidirectional with the form of radiowave by emitting antenna.
6. sender according to claim 5 is characterized in that,
Described input with trigger assembly comprise following one or more: button, selector switch, communication interface, motoring condition Acquisition Circuit, described motoring condition Acquisition Circuit comprise following one or more: air bag opening signal input interface, speed of a motor vehicle input interface, hazard warning lamp start signal input interface, engine failure indicator signal input interface.
7. one kind is adopted each the receiver of traffic prewarning method of claim 1-4, it is characterized in that,
Comprise: receiving unit, demodulation components, second processing components and output precision;
Described receiving unit be used for to receive the modulated traffic prewarning signal that sends with the form of radiowave from specific direction;
Described demodulation components is used for that described modulated traffic prewarning signal is carried out demodulation and obtains the traffic prewarning baseband signal;
Described second processing components is used for according to predetermined manner described traffic prewarning baseband signal being decoded, and obtains described traffic prewarning information, and makes corresponding early warning output order according to the described traffic prewarning information that obtains;
Described output precision is used for exporting corresponding early warning output according to described early warning output order.
8. receiver according to claim 7 is characterized in that,
Described output precision comprise following one or more: voice broadcast assembly, pilot lamp, image-text display, electric signal output precision, idle contact output precision, audible alarm assembly, light alarm assemblies, vibration alarming assembly.
9. a traffic prewarning system that adopts each described traffic prewarning method of claim 1-4 is characterized in that,
Comprise: as claim 5 or 6 described senders, as claim 7 or 8 described receivers;
Described traffic prewarning system is fused to organic entity with function and the assembly of described sender and described receiver.
10. traffic prewarning according to claim 9 system is characterized in that,
Also comprise relaying forwarding Control Component;
Described relaying is transmitted Control Component, is used for there is the restriction of the max-forwards number of plies in the described traffic prewarning of control system to the described traffic prewarning information of appointment relaying forwarding.
11. according to claim 9 or 10 described traffic prewarning systems, it is characterized in that,
Described relaying is transmitted Control Component the described traffic prewarning information that described traffic prewarning system receives is compared with the traffic prewarning information set that needs forwarding, if described traffic prewarning information is included in the described traffic prewarning information that needs to transmit and concentrates, and max-forwards number of plies setting value is greater than 0, then, further, do not transmit the number of plies or transmit the number of plies less than described setting value if do not comprise in the described modulated traffic prewarning signal that described traffic prewarning system receives, then, described relaying is transmitted Control Component and is controlled the described traffic prewarning information of described traffic prewarning system forwards and send the forwarding number of plies simultaneously, the described forwarding number of plies that sends is that the forwarding number of plies that receives adds 1, if do not comprise the forwarding number of plies in the described modulated traffic prewarning signal that described traffic prewarning system receives, then the forwarding number of plies of Fa Songing is 1.
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