CN104392621A - Road abnormal parking early warning method based on vehicle to vehicle communication and implementation system thereof - Google Patents
Road abnormal parking early warning method based on vehicle to vehicle communication and implementation system thereof Download PDFInfo
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- CN104392621A CN104392621A CN201410692451.6A CN201410692451A CN104392621A CN 104392621 A CN104392621 A CN 104392621A CN 201410692451 A CN201410692451 A CN 201410692451A CN 104392621 A CN104392621 A CN 104392621A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0965—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages responding to signals from another vehicle, e.g. emergency vehicle
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/161—Decentralised systems, e.g. inter-vehicle communication
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Abstract
The invention discloses a road abnormal parking early warning method based on vehicle to vehicle communication and an implementation system thereof, the early warning method includes: using a positioning module to obtain the position information of the moving vehicle; when the vehicle parks for abnormal state, using a wireless communication module for sending abnormal warning message; receiving the abnormal warning message through the wireless communication module by the vehicle moving normally; early adjusting after receiving the abnormal warning voice prompt and text display information by the vehicle moving normally, steering clear of the vehicle having abnormal state. The road abnormal parking early warning system comprises a main controller and a positioning module connected to the main controller for obtaining the position information of the moving vehicle, the wireless communication module used for sending or receiving the abnormal warning message, the voice prompt and voice broadcast module used for the abnormal warning message, and the display module used for displaying the text for the abnormal warning message. The vehicle can send the warning message while parking for abnormal state for reminding the nearby vehicles for adjusting early.
Description
Technical field
The present invention relates to traffic safety and intelligent transportation field, be specifically related to a kind of highway exception parking method for early warning based on truck traffic and realize system.
Background technology
Along with the raising day by day of people's living standard, increasing sharply appears in automobile pollution, and road traffic presents the development trend of human pilot deprofessionaliztion, vehicle highspeed running, city vehicle densification, and traffic hazard takes place frequently becomes a serious social concern.No matter be work, go on a journey or visit friends and relatives, everybody wishes safe driving, safety comes and goes, but the incidence of traffic hazard but remains high all the time.
Cause the reason of traffic hazard to have a lot, speeding, the traffic violation, in driving, energy is not concentrated to wait and all can be caused serious traffic hazard.In addition, if vehicle performance is bad, condition of road surface is bad and lack necessary road safety measure, and the impact etc. of natural conditions and other fortuitous events all likely becomes the origin cause of formation of traffic hazard.
Human pilot can run into a lot of dangerous situation in steering vehicle process, such as highway exception parking, driver because of the exception parking that vehicle trouble, traffic hazard or other reasons cause, very easily causes car rear-end in driving procedure, causes secondary accident and secondary injury.In China, because road conditions is complicated, weather conditions are changeable, the not high reason of human pilot quality, the traffic hazard because exception parking causes often occurs, causes great life and property loss.
The method of tradition reply highway exception parking places warning mark at the vehicle-surroundings of exception parking to detour to remind rear car driver to slow down, collision free.But, at dense fog, sleety weather, to turn round and in the situations such as section of climbing, driver's seat is limited, may Timeliness coverage warning mark, easily cause security incident.In view of this, how to remind driver that the Timeliness coverage exception parking vehicle when driving a vehicle also initiatively provides early warning, reduce or avoid the generation of this type of traffic hazard, for driver and conductor provides safety auxiliary early warning information, ensuring safety to drive becomes the problem that is needed badly solution.
Summary of the invention
The object of the invention is to for above-mentioned the problems of the prior art, a kind of highway exception parking method for early warning based on truck traffic is provided and realizes system, make vehicle when exception parking, outwards can send early warning information and remind neighbouring normal driving vehicle to adjust in advance.
To achieve these goals, the technical scheme that the highway exception parking method for early warning that the present invention is based on truck traffic adopts, comprises the steps:
The first step, obtains the positional information of driving vehicle by locating module;
Second step, when vehicle generation exception parking, outwards sends abnormality warnings information by wireless communication module;
3rd step, the normal vehicle travelled receives abnormality warnings information by wireless communication module;
4th step, the normal vehicle travelled obtains abnormality warnings voice message and text display information, adjusts in advance, thus initiatively gets around the vehicle of exception parking.
Described positional information comprises the latitude and longitude coordinates of driving vehicle.
Described abnormality warnings information comprises the latitude and longitude coordinates of exception parking vehicle and the reason of exception parking.
Adopt the form of broadcast when the abnormality warnings information of described exception parking vehicle is outwards sent by wireless communication module, received by wireless communication module when the normal vehicle travelled arrives in range of receiving.
The present invention is based on the highway exception parking early warning system of truck traffic, comprise master controller, and the locating module for obtaining driving vehicle positional information to be connected with main control, for sending or receive the wireless communication module of abnormality warnings information between car car, for carrying out the voice broadcast module of voice message to abnormality warnings information, for carrying out the display module of text display to abnormality warnings information.
Described wireless communication module is provided with diversity antenna.
Described wireless communication module is by vehicle-mounted 5V DC power supply.
The CC1101 wireless communication module that described wireless communication module adopts Chipcon company to produce.
Described voice broadcast module comprises speech chip and loudspeaker.
Described master controller connects and is used for controlling the button that wireless communication module initiatively sends warning message under bend crossing or Emergency avoidance situation.
Compared with prior art, the present invention is based on the highway exception parking method for early warning of truck traffic, first by the positional information of locating module Real-time Obtaining driving vehicle, when vehicle generation exception parking, outwards sending abnormality warnings information by wireless communication module, after this warning message, there is abnormality warnings voice message and text display information in the automobile receiver of neighbouring normal traveling in car, driver adjusts thus in advance, thus initiatively gets around the vehicle of exception parking.The present invention is applicable to various vehicle, fill up the blank of highway exception parking early warning, by voice message and text message display, reach the object of double shield, ensure driver in the visual field during unopen or visual fatigue prominent front exception parking of meeting carry out corresponding adjustment early, improve the security of road.
Further, abnormality warnings information of the present invention is outwards sent by the form of broadcast, makes the vehicle in range of receiving on any direction all can collect signal, causes early warning to lose efficacy after preventing vehicle lane change because braking distance is too short.
The highway exception parking early warning system that the present invention is based on truck traffic presents with the form of embedded equipment, can either as independently intelligent vehicle-carried equipment use, and also can merge with existing guider, installation form is versatile and flexible.By taking master controller as core, carry locating module, wireless communication module, voice broadcast module and display module, realize the quick validity that exception parking warning message gathers, solve the potential safety hazard that highway exception parking brings, for driver and conductor provides the auxiliary early warning information of safety, ensure the safety coefficient of driving path.
Further, wireless communication module of the present invention is provided with diversity antenna, the diversity antenna of high-gain increases the transmission and reception scope of radio communication mold block signal, and the penetration capacity of signal is strengthened.
Further, wireless communication module of the present invention is by vehicle-mounted 5V DC power supply, and structure is simple, and easy for installation, cost is low, and cost performance is good.
Further, the CC1101 wireless communication module that wireless communication module of the present invention adopts Chipcon company to produce, its main circuit will be set as at 433MHz, CCl101 is integrated with highly configurable modulator-demodular unit, support different modulation formats, its data transmission rate is the highest can reach 500kb/s, by opening the forward error recovery option be integrated on modulator-demodular unit, performance can be made to get a promotion.In transmit state, its emissive power can be programmed and be regulated, and maximum transmission power reaches+10dBm, and receiving sensitivity can reach-110dBm, and antijamming capability is strong, and power consumption is lower.
Further, master controller of the present invention connects for controlling the button that wireless communication module initiatively sends warning message under bend crossing or Emergency avoidance situation; On the one hand because bend crossing geographical environment varies, so the visual field of driver and conductor often can be blocked, cause driver and conductor cannot learn the driving situation at bend mouth place, be easy to cause between motor vehicle, motor vehicle and bicycle, traffic hazard between motor vehicle and pedestrian, if driving vehicle sends a warning message towards periphery when intersection, informing has vehicle to please note safety herein at the vehicle of the bend crossing other end, will reduce the generation that even can avoid traffic accident; On the other hand, because current automobile pollution increases sharply, the load of road overloads, when the vehicle that emergency tender, fire truck, police service car etc. perform emergency condition is advanced on crowded road, press the button sending warning message, public vehicles receive warning message, have emergency vehicle to occur near learning, dodge accordingly so make, well ensured the traffic capacity of road.
Accompanying drawing explanation
Fig. 1 main control chip peripheral circuit diagram of the present invention;
Fig. 2 GPS chip periphery of the present invention circuit diagram;
Fig. 3 wireless communication module peripheral circuit diagram of the present invention;
Fig. 4 TFT touch screen modular peripheral of the present invention circuit diagram;
The System's composition block diagram of Fig. 5 voice broadcast module of the present invention;
The peripheral circuit diagram of Fig. 6 speech chip of the present invention;
Fig. 7 car inter-vehicle communication of the present invention structured flowchart;
Fig. 8 early warning system structured flowchart of the present invention;
Fig. 9 main program flow chart of the present invention;
In accompanying drawing: 1-master controller; 2-wireless communication module; 3-locating module; 4-voice broadcast module; 5-display module.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
See Fig. 1,2,3,4,6, the highway exception parking early warning system that the present invention is based on truck traffic comprises main control chip, and Master control chip connects GPS chip, wireless communication chips, TFT touch screen module and speech chip.
Master control chip is adopted as the STM32 based on ARM Cortex-M3 kernel of the custom-designed high-performance of Embedded Application, low cost, low-power consumption, coordinates each module work by Master control chip, the master control function of completion system.
GPS chip adopts the NEO-5Q master chip of u-blox company of Switzerland, for system provides position coordinates, speed and directional information.
CC1101 wireless communication chips is the up-to-date high performance chips of Chipcon company, its main circuit will be set as at 433MHz, CCl101 is integrated with a highly configurable modulator-demodular unit, and support different modulation formats, its data transmission rate reaches as high as 500 kb/s.By opening the forward error recovery option be integrated on modulator-demodular unit, performance can be made to get a promotion.In transmit state, emissive power can be programmed adjustment, and its maximum transmission power reaches+10dBm, and receiving sensitivity can reach-110dBm, antijamming capability is strong, and power consumption is lower, mutual as truck traffic module in charge car workshop information of 433M wireless communication chips in this programme.
Speech chip adopts SYN6288, SYN6288 by asynchronous serial communication mode, receives text data to be synthesized, realizes the conversion of Text To Speech.This module is paster encapsulation, hardware interface is simple, low-power consumption, tone color limpid mellow and full, intelligibility is high.Conclusion is sent to speech chip by single-chip microcomputer in time, carries out corresponding voice warning.
TFT touch screen module is resistive touch LCD display, be provided with six virtual keys in this programme, practical function has respectively: the switching that interface Chinese and English switches, interface background change, font size are arranged, exception parking travels with normal, bend intersection, Emergency avoidance.Also be provided with the display interface of display longitude and latitude and abnormality warnings information simultaneously.
See Fig. 5, speech chip adopts SYN6288, SYN6288 inside comprises voice synthetic module, serial ports transceiver module and speech line output module, the asynchronous serial communication of control signal is carried out by serial ports transceiver module and controller, by speech line output module, voice signal is delivered to loudspeaker through power amplifier, finally realizes voice broadcast.
See Fig. 7, the locating module 3 for obtaining driving vehicle positional information that the highway exception parking early warning system that the present invention is based on truck traffic comprises master controller 1 and is connected with master controller 1, locating module 3 will send to master controller 1 from car gps data; For sending or receive the wireless communication module 2 of abnormality warnings information between car car, abnormality warnings information comprises the latitude and longitude coordinates of exception parking vehicle and the reason of exception parking; For carrying out the voice broadcast module 4 of voice message to abnormality warnings information, for carrying out the display module 5 of text display to abnormality warnings information, exception parking vehicle display module 5 shows longitude and latitude, speed, course etc. from car, normal driving vehicle display module 5 shows front distance exception parking and parking reason, and the voice broadcast module 4 of normal driving vehicle carries out voice broadcast to display text.
See Fig. 8, highway exception parking warning system of the present invention comprises normal vehicle operation system n-back test and vehicle abnormality system n-back test; Normal vehicle operation system n-back test module comprises information display module, message processing module and information acquisition module; Information display module exports voice messaging and liquid crystal on-screen-display message, and message processing module exports car vehicle headway and the relative position with abnormal car, and information acquisition module inputs data that abnormal car sends and from car gps data.Vehicle abnormality system n-back test module comprises information issuing module, information issuing module export difference in functionality with identifier from car gps data and liquid crystal display display longitude, speed, course information.
See Fig. 9, the present invention is based on the highway exception parking method for early warning of truck traffic, comprise the steps:
The first step, obtains the positional information of driving vehicle by locating module 3;
Second step, judges whether vehicle exception parking, bend crossing or Emergency avoidance situation occur, and controls wireless communication module 2 outwards send abnormality warnings information by membrane keyboard;
3rd step, if the normal vehicle travelled receives abnormality warnings information by wireless communication module 2, will calculate accident distance, if do not receive abnormality warnings information, then show self present co-ordinate position and will return second step and proceed judgement;
4th step, within judging whether the normal vehicle travelled arrives alarm distance, carrying out security warning and returning second step proceeding to judge as entered alarm distance, if do not enter alarm distance, carrying out danger warning and returning second step proceeding to judge.
System and device is provided with three major functions:
Exception parking: for a certain reason, such as mechanical fault, the situation of driver and conductor individual causes vehicle abnormality to stop to vehicle, and this can cause serious threat to the vehicle that surrounding normal travels.If abnormal vehicle can send " notice " exception parking warning message to surrounding vehicles when exception parking, surrounding vehicles driver and conductor after receiving warning message can make corresponding change and initiatively avoid abnormal vehicle.Example one, vehicle abnormality stops and sends exception parking warning message (latitude and longitude coordinates, parking reason etc.), the neighbouring normal vehicle travelled can receive this information, processed by controller, the relative distance between car vehicle and exception parking vehicle, relative position must be come from, and then report the information of " there is parking at, 50 meters, front " by the mode of voice and text.
Bend crossing: when vehicle travels in bend crossing; because bend crossing geographical environment varies; so the visual field of driver and conductor often can be blocked; cause driver and conductor cannot learn the driving situation at bend mouth place, be easy to cause between motor vehicle, motor vehicle and bicycle, traffic hazard between motor vehicle and pedestrian.If can send a warning message towards periphery when vehicle is in intersection, informing has vehicle to please note safety herein at the vehicle of the bend crossing other end, can reduce the generation that even can avoid traffic accident.Example two, as long as vehicle drives to bend crossing, can use bend crossing warning function, and now, if there is vehicle at bend place, system can report the information of " there is vehicle meeting in front " by the mode of voice and text.
Emergency avoidance: because current automobile pollution increases sharply, the load of road overloads.But can seem particularly inconvenience when the vehicle of the execution emergency conditioies such as emergency tender, fire truck, police service car is advanced on crowded road simultaneously.If be therefore equipped with early warning system of the present invention on these emergency vehicles, after the button of Emergency avoidance pressed by this kind of vehicle, public vehicles can be cautioned information, have emergency vehicle to occur making and dodge accordingly near learning.This warning message of current setting only has this type of vehicle to have the right to use, and has therefore well ensured the implementation capacity of Emergency avoidance.Example three, if rear has emergency vehicle to use Emergency avoidance function, front public vehicles early warning system can report the information of " there is emergency vehicle at rear, please notes and dodges " by the mode of voice and text.
Wireless communication module performance is as follows:
(1) static properties;
Condition is: A, B, C 3 is static, between in a distance.
Result: internodal data transmission accuracy 100%, maximum delay is less than 10ms, and transmission range is 300m to the maximum, and communication is stable.
Therefore, static properties meets application requirement.
(2) dynamic property;
Condition is: A, B, C are at low speed, between in a distance.
Result: internodal data transmission accuracy 99%, maximum delay is less than 100ms, and transmission range is 220m to the maximum, and communication is stable.
Table 1 is GPS module debug results table
From table 1, data can find out that on highway, GPS module debugging is short for rear positioning time, and renewal rate is fast, and positioning precision is high, and limiting velocity reaches 500m/s.
Table 2 is voice broadcast module synthetic effect table
Can find out that the naturalness of voice broadcast, sharpness, correctness, intelligibility are higher from table 2 data.
Present system presents with embedded equipment, can as independently intelligent vehicle-carried equipment use, also can merge with existing guider, early warning with navigation both be fused to vehicle and passenger safety provides strong guarantee, therefore the program has a wide range of applications and Trend of Industrialization on motor vehicle.The program is intended to the potential safety hazard that solution highway exception parking brings.By excavating the demand of early warning system, the function of design early warning system; Use the informationization technologies such as GPS global location, radio communication, Intelligent voice broadcasting, when vehicle abnormality stops, driver and conductor can issue exception parking information (GPS longitude and latitude, exception parking reason etc.), proximate vehicle car-mounted terminal receives abnormal information in time, exactly by low time delay, highly reliable wireless communication module, and in conjunction with self car body data (GPS longitude and latitude, speed etc.), according to the warning algorithm embedded in advance, for driver and conductor provides safety auxiliary early warning information, ensure safety driving further.
Claims (10)
1., based on a highway exception parking method for early warning for truck traffic, it is characterized in that, comprise the steps:
The first step, obtains the positional information of driving vehicle by locating module (3);
Second step, when vehicle generation exception parking, outwards sends abnormality warnings information by wireless communication module (2);
3rd step, the normal vehicle travelled receives abnormality warnings information by wireless communication module (2);
4th step, the normal vehicle travelled obtains abnormality warnings voice message and text display information, adjusts in advance, thus initiatively gets around the vehicle of exception parking.
2. the highway exception parking method for early warning based on truck traffic according to claim 1, is characterized in that: described positional information comprises the latitude and longitude coordinates of driving vehicle.
3. the highway exception parking method for early warning based on truck traffic according to claim 1, is characterized in that: described abnormality warnings information comprises the latitude and longitude coordinates of exception parking vehicle and the reason of exception parking.
4. the highway exception parking method for early warning based on truck traffic according to claim 1, it is characterized in that: the form adopting broadcast when the abnormality warnings information of described exception parking vehicle is outwards sent by wireless communication module (2), received by wireless communication module (2) when the normal vehicle travelled arrives in range of receiving.
5. the highway exception parking early warning system based on truck traffic, it is characterized in that: comprise master controller (1), and the locating module (3) for obtaining driving vehicle positional information to be connected with master controller (1), for sending or receive the wireless communication module (2) of abnormality warnings information between car car, for carrying out the voice broadcast module (4) of voice message to abnormality warnings information, for carrying out the display module (5) of text display to abnormality warnings information.
6. the highway exception parking early warning system based on truck traffic according to claim 5, is characterized in that: described wireless communication module (2) is provided with diversity antenna.
7. the highway exception parking early warning system based on truck traffic according to claim 5 or 6, is characterized in that: described wireless communication module (2) is by vehicle-mounted 5V DC power supply.
8. the highway exception parking early warning system based on truck traffic according to claim 7, is characterized in that: the CC1101 wireless communication module that described wireless communication module (2) adopts Chipcon company to produce.
9. the highway exception parking early warning system based on truck traffic according to claim 5, is characterized in that: described voice broadcast module (4) comprises speech chip and loudspeaker.
10. the highway exception parking early warning system based on truck traffic according to claim 5, is characterized in that: described master controller (1) connects and is used under bend crossing or Emergency avoidance situation, control the button that wireless communication module (2) initiatively sends warning message.
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