CN101645204A - Communication device for avoiding risks among vehicles and data processing method thereof - Google Patents
Communication device for avoiding risks among vehicles and data processing method thereof Download PDFInfo
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Abstract
The invention discloses a communication device for avoiding risks among vehicles and a data processing method thereof, belonging to the vehicular communication field. The device comprises a sensor unit, a control unit, a memory unit, a wireless data transmit-receive unit, a display unit, a pre-warning unit, a power supply, a power interface and a reserving communication interface; each unit is connected through data lines and power lines. The sensor unit collects the driving state data of vehicles and transmits the driving state data to the control unit; the data transceiving unit transmits the driving state information to the flank vehicles in real time and synchronously receives driving state information of vehicles; the control unit comprehensively judges the driving state date betweenvehicles to form judging results according to preset conditions, categories of danger and threshold value scope, and sends out control information to the pre-warning unit, and controls the informationtransmission to an opposite side device. In the invention, real time wireless communication among vehicles can be realized; and driving state information of vehicles and dangerous information can bereceived and transmitted mutually. The device can actively remind a driver to avoid danger in advance, thus avoiding traffic accident occurring.
Description
Technical field
The present invention relates to a kind of vehicular communication unit, specifically is a kind of communication device for avoiding risks among vehicles and data processing method thereof.Be specially adapted under the dangerous situation of driving, can send automatically the acousto-optic early warning and note, evade in advance dangerous avoiding risks among vehicles to remind the driver.
Technical background
So far, existing vehicular communication unit adopts the communication means of telephone set or Email, perhaps depend on the services such as location, navigation and data communication of third party's communication network (as GPS, GPRS/CDMA mobile communications network etc.), the intermediate communication link is too much, be difficult to satisfy vehicle needs to judge in real time danger or potential danger because of transport condition is fast changing needs, between the vehicle on the road, lack in real time, independently, wireless messages is linked up and exchanged efficiently.The method that people tackle vehicular traffic danger mainly is driving skills, experience and the reaction capacity that relies on the driver.But, the driver for some catastrophe risks (stifled road of the place ahead scene of a traffic accident of over the horizon, parking, the place ahead and construction, single track let pass, enter fog-zone, other vehicle disobey stop, that inclement weather causes is invisible, moment vehicle-state change) can't predict in advance and a lot of traffic hazards can take place, cause casualties, property loss.How accurately, in time and effectively improve direct information communication, minimizing traffic hazard between vehicle, become a big vehicle driving safety difficult problem.
Summary of the invention
In order accurately, in time and effectively to improve direct information communication, the minimizing traffic hazard between vehicle, the invention provides a kind of communication device for avoiding risks among vehicles and data processing method thereof, be a kind of real time bidirectional radio communication, automatically judge dangerous, initiatively remind the driver to drive with caution and evade the safety feature of danger.Therefore, the field range that can exceed the people is predicted risk in advance, in time reminds the driver to note, evades danger in advance, thereby avoid traffic accident generation.
The present invention realizes with following technical scheme: a kind of communication device for avoiding risks among vehicles, be used to handle and transmit the transport condition data of vehicle, and it is characterized in that, comprising:
-sensor unit is used for the various data of real-time collection vehicle transport condition, and described transport condition data are sent to control module;
-wireless data transceiving unit, keep communicating by letter with described control module, be used to receive the transport condition data that send from the other side's side vehicle, and, realize the bidirectional real-time between described vehicle described status data, control information and other information of vehicles process wireless transmit and reception;
-control module, be used for the transport condition data between the synthetic determination vehicle, under the situation that exceeds the reservation threshold scope, carrying out danger according to pre-conditioned, dangerous kind and threshold values scope studies and judges, form result of determination, send corresponding control information to prewarning unit, and control is to the transmission of the other side's side device;
-storage unit is used to store the needed storage space of this device operation, parameter setting, receives and sends messages, data such as movement locus;
-display unit is used for running status, early warning data and the various text messages such as the rescue that sends from described the other side's side device, traffic management and control of display device;
-prewarning unit is made corresponding acousto-optic early warning action according to the control information that control module sends, and to display unit output early warning information;
-power supply and power interface are used for providing battery and vehicle power supply etc. to import power supplys to described device;
-reservation communications interface unit, be used for communicating by letter with the butt joint of other communication system or equipment, the communication port of the built-in reservation of interface, be used for the butt joint of emergency relief, intelligent transportation management and control and other communication system or equipment, send fault or accident rescue signal, react after the described device of vehicular traffic is received, these distress signals are transmitted the described device of all vehicular traffics.
Owing to adopt technique scheme, promptly install with one group of sensor and detect traveling state of vehicle automatically, rely on wirelessly transmitting data to carry out the communication between vehicle, the danger that control module judgement vehicle ' is about to run into, especially contingent road accident, thereby judge whether all vehicles or the state of affairs beyond certain regional Nei Benche constitute dangerous to this car, in vehicle ' or in stopping under the state, if judge dangerous the existence, can send acousto-optic and literal early warning automatically, initiatively remind (both sides) driver to drive with caution, evade forward-and-rearward danger.
A kind of communication device for avoiding risks among vehicles data processing method is characterized in that step is as follows:
Transport condition data from the extracting data vehicle of described sensor unit;
Transport condition data from extracting data the other side's side vehicle of described Transmit-Receive Unit;
Obtain the recognition data of described device;
Obtain data such as rescue that described the other side's side device sends, traffic management and control;
The change in displacement of the three-dimensional coordinate of described device with registration of vehicle is set, and the x axle is represented the left and right displacement of car, and the y axle is represented the front and back displacement of car, and the t axle is represented the variation of time;
The virtual protection scope being set, according to the physical parameters such as length of vehicle, setting the protection domain of vehicle, is the data of one group of virtual vehicle profile, the protected area scope of simulating vehicle.
The invention has the beneficial effects as follows: can realize real-time radio communication between the vehicle by this device, can receive and dispatch vehicle running state information and dangerous information mutually.Be a kind of real time bidirectional communication, automatically judge dangerous, initiatively remind the driver to drive with caution and evade the safety feature of danger.Therefore, the field range that can exceed the people is predicted risk in advance, in time reminds the driver to note, evades danger in advance, thereby avoid traffic accident generation.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the one-piece construction block diagram of communication device for avoiding risks among vehicles;
Fig. 2 is the flow chart of data processing figure of communication device for avoiding risks among vehicles;
Fig. 3 is default early warning data structure and implements illustration;
Fig. 4 is the structural drawing of the default control data of communication device for avoiding risks among vehicles;
Fig. 5 is the figure that function interface manually is set of communication device for avoiding risks among vehicles;
Fig. 6 is the figure of the embodiment of the invention 1;
Fig. 7 is the figure that described communication device for avoiding risks among vehicles protection domain is provided with.
Embodiment
As shown in Figure 1, communication device for avoiding risks among vehicles comprises: sensor unit 100, wireless data transceiving unit 200, control module 300, storage unit 400, display unit 500, prewarning unit 600, reservation communication interface 700, power supply and power interface 800.
Sensor unit 100 is made up of speed pickup 101, acceleration transducer 102, direction sensor 103, angular transducer 104, range sensor 105 and vibration transducer 106.Each sensor of sensor unit is respectively applied for status data such as speed, acceleration, direction and the angle of real-time detection vehicle ' moment and detects vehicle and has or not because of collision and produce violent abnormal vibrations situation.
Wireless data transceiving unit 200 is made up of wireless transmitter module 201 and receiver module 202.Keep communicating by letter with control module 300, be used for the double-direction radio data communication between the described communication device for avoiding risks among vehicles, send transport condition data, information of vehicles and the result data of vehicle in real time to other communication device for avoiding risks among vehicles, and receive transport condition data, information of vehicles and the result data of sending from other communication device for avoiding risks among vehicles in real time.
Storage unit 400 is used to provide described communication device for avoiding risks among vehicles to move needed storage space, store car status data, information of vehicles, result data and default various data.In addition, storage unit 400 is gone back the registration of vehicle driving trace, is recorded in other vehicle that is touched in the stroke in certain period and highway section.
Prewarning unit 600 comprises loudspeaker 601 and warning lamp 602, keeps communicating by letter with display unit 500 with control module 300.Described prewarning unit 600 is made corresponding voice suggestion and caution light early warning action according to the control information that receives, and text early warning information is wherein transferred to display unit 500 and handled.
Display unit 500 keeps communicating by letter with prewarning unit 600 with control module 300, is used to show running status, early warning data and the various text messages such as the rescue that sends from described the other side's side device, traffic management and control of described device.
Reserve communication interface 700, keep communicating by letter, be used for communicating by letter the communication port of the built-in reservation of interface with the butt joint of other communication system or equipment with control module 300.In addition, can transfer vehicle driving trace by spare interface 700 and run into other vehicle and dangerous situation, can be used as the disposal of intelligent transportation control and alert reference and evidence are provided with institute.
Power supply and power interface 800 are used for providing battery and automobile power source etc. to import power supplys to described device.
A kind of data processing method that the present invention relates to is provided with the change in displacement of three-dimensional coordinate with the vehicle of this device of representative use, and the x axle is represented the left and right displacement of vehicle, and the y axle is represented the front and back displacement of vehicle, and the t axle is represented the variation of time.Initial coordinate is (0,0,0), and after the information of sending from the device that begins to receive other vehicle, the coordinate of this car device begins to change the movement locus of minute book car.In case the time interval is in 10 seconds kinds, do not receive other device letter, then coordinate automatic clear.
Constructing communication network method between the mobile object of the present invention is, all vehicles that enter in the described device wireless signal coverage of loading on the vehicle all will be formed a provisional communication network automatically according to device identification code, adopt the networking mode that freely divides into groups, free communication between the each side in the network.Even the device of vehicle has withdrawed from the provisional communication network of some space-time, will keep useful data, spontaneously be delivered to next provisional communication network, perhaps select downwards transmission information automatically according to road driving direction and information value.
Described device also has the function of rescue, automatic or manual sends fault or accident help signal to the device of vehicular traffic, described device by other vehicle is transmitted all vehicular traffics with these distress signals, road or accident rescue unit can transmit and next distress signals by reserving communication interface, receiving by aforementioned vehicular traffic.
Described device of the present invention also is aided with warning function manually is set, and is used for because of under the situation that vehicle breaks down, temporary parking, road or traffic hazard are stopped, and the caution front vehicle notes evading danger.
As shown in Figure 2, when described device power on bring into operation after, begin to send this car integrated data immediately, receive other vehicle integrated data simultaneously, other vehicle data of being run into of record.Submit to control module 300 to handle in the lump above-mentioned data, compare analysis according to default control data and threshold values scope, whether judge dangerous or potential danger, if exist then form kind, degree, the pattern of obtaining this dangerous information immediately, control prewarning unit 600 is sent audible and visible alarm, display unit shows the text message of early warning synchronously, simultaneously, sends early warning information to other vehicle.
As shown in Figure 3, early warning data by status code, device identification code, date and time, classification, content and explanation totally 6 fields form.Content field example wherein is as follows:
" the place ahead X rice has car to stop on the right side, notes dodging! Leading vehicle distance X rice, speed per hour X meter per second.Front truck is left and right to be turned to, zig zag! In the front truck brake hard.The place ahead distance X rice has traffic hazard, and two cars are parked in the scene, is in extreme danger, and please dodge! Back car is prepared to overtake other vehicles from a left side/right side.Back spacing X rice, a speed per hour X meter per second! A left side/right lateral side has car parallel! Traffic hazard: comprise the place ahead scene of a traffic accident, the traffic hazard of this car.This car is promptly stopped, the place ahead has car to stay to stop, this car fault.Stifled road, the place ahead and construction, road have dangerous situation.Inclement weather environment such as enter fog-zone, rain belt, snow.”
As shown in Figure 4, the control data of described device comprises: device identification code, length are 64 bits (8 bytes), and preceding 16 is region code, and back 48 is the device code; Information category is divided into vehicle physical data, vehicle status data, danger, seeks help, alert etc.; Status code is divided into transmission, receives two kinds; Hazard level is divided into 1 grade (extremely), 2 grades (danger), 3 grades (generally), 4 grades (being safe from danger) level Four altogether; Front vehicles is dynamic, be divided into brake, turning, stay stop, accident etc.; Front vehicle is dynamic, is divided into speed-raising, overtakes other vehicles etc.; The early warning control information, length is 3 bits, and whether light, literal early warning action are sounded, warned in (0,1) to correspondence respectively, is " 101 " as code, then representative " control prewarning unit need sound early warning action, display unit need carry out literal and show the early warning action ".
As shown in Figure 5, the following function button that manually is provided with of described device configuration: 1 silent status, close the prewarning unit function; Device will enter the low-power power modes, promptly close the light warning function of prewarning unit, the display terminal of display unit, sensor unit sensor and the vibration transducer operation of only keeping at a distance; Page turning on 2 information; Page turning under 3 information; 4 traffic hazards comprise the place ahead scene of a traffic accident, the traffic hazard of this car; 5 stay and to stop, and are divided into that this car is promptly stopped, situations such as the place ahead has car to stay to stop, this car fault; 6 road conditions are divided into stifled road, the place ahead and construction, road has dangerous situation etc.; 7 weather are divided into inclement weather environment such as enter fog-zone, rain belt, snow; 8 seek help.
The present invention will become clearly from the following description, and Fig. 6 is one particular embodiment of the present invention.
As shown in Figure 6, the control module 300 of car A1 judges according to current (in the provisional communication network range) other vehicle running state (dynamically) information whether vehicle exists following danger under current state: road ahead has traffic hazard, causes the road impassability; There is parked vehicles in the place ahead, and the relative velocity between Ben Che and the front vehicles is excessive; There is the car zig zag in the place ahead, if this car continues can cause (secondary) traffic hazard with present speed and direction running; The rear has the relative velocity of car and Ben Che excessive; The rear has car to turn to or prepares overtakes other vehicles, if this car turns to toward this direction again, can cause back car brake too late; This car left and right sides has car to travel, because the driver exists certain left back survey and right back survey vision blind area when observing backward.If judge dangerous the existence, prewarning unit 600 is sent the acousto-optic early warning automatically, initiatively reminds both sides driver to drive with caution, evade forward-and-rearward danger.
Road is two-way six-lane among Fig. 6, has 12 automobiles illustrated, and the vehicle of the up side in road right side has A1～A7, and the descending vehicle in left side has B1～B5, supposes that car A5 is fault or interim the stop.In this present space-time environment, being the center with the A1 car has formed a provisional communication network N 1 according to the coverage of wireless signal, the vehicle that wherein enters network N 1 has A1～A5, B1～B4, these 9 cars can by described device automatically and the A1 car carry out double-direction radio real-time Communication for Power and exchanges data, A6, A7 and B5 car then are in outside the network N 1, they can't be directly and the A1 car carry out information communication because they all are in outside the wireless signal coverage of installing described in the A1 car.If A1 this moment prepares to overtake other vehicles, it at first should evade the obstruction danger of A4, if A1 begins to have overtaken other vehicles, A4 and A2 can receive this early warning information simultaneously, should finish as early as possible between A4 and the A2 and overtake other vehicles to sail out of the zone that danger exists.A1 can receive that the place ahead has car to overtake other vehicles simultaneously, the breakneck early warning information of overtaking other vehicles again, and the driver on the A1 car should avoid continuing to overtake other vehicles this moment as far as possible, and the A2 that overtakes other vehicles again awaits a favorable opportunity.This moment is for car A5, its stop especially can form great latent defect danger to A2～A5 car under abominable, the complicated meteorological condition or when exceeding back vehicle driver's field range, the car-mounted device of A5 can for example initiatively send " I stop on the right side at your the place ahead X rice, note dodging! " early warning information.
Rear-end collision has taken place in the vehicle A8 and the A9 that suppose the place ahead simultaneously, at this moment is that the casual network at center can cover the A5 car with A9, does not but cover A1.And the only self-dependent provisional communication network of A1 car also can not received the peril field alert information M1 that this is very important at present: " the place ahead distance X rice has traffic hazard, and two cars are parked in the scene, is in extreme danger, and please notes to dodge and succour! ".In this case, the information linking function of described device will be had an effect, information M1 has been real-time transmitted to A5, A5 is by the information transmission and then forwarding information M1 to the A1 car of described device, A1 is synthetic through information, can accurately obtain the dangerous situation in the place ahead, reduce the speed of a motor vehicle as early as possible, suitably dispose.
The communication device for avoiding risks among vehicles protection domain is provided with figure as shown in Figure 7.Described device is provided with a virtual protection domain according to the physical parameters such as length of vehicle, is the data of one group of virtual vehicle profile, the protected area scope of simulating vehicle.These group data submit to control module 300 as the foundation of carrying out danger judging between the vehicle of travels down.
Apparatus of the present invention can extensively be useful for various vehicles.
Claims (7)
1. communication device for avoiding risks among vehicles is used to handle and transmit the transport condition data of vehicle, it is characterized in that, comprising:
-sensor unit is used for the various data of real-time collection vehicle transport condition, and described transport condition data are sent to control module;
-wireless data transceiving unit, keep communicating by letter with described control module, be used to receive the transport condition data that send from the other side's side vehicle, and, realize the bidirectional real-time between described vehicle described status data, control information and other information of vehicles process wireless transmit and reception;
-control module, be used for the transport condition data between the synthetic determination vehicle, under the situation that exceeds the reservation threshold scope, carrying out danger according to pre-conditioned, dangerous kind and threshold values scope studies and judges, form result of determination, send corresponding control information to prewarning unit, and control is to the transmission of the other side's side device;
-storage unit is used to store the needed storage space of this device operation, parameter setting, receives and sends messages, data such as movement locus;
-display unit is used for running status, early warning data and the various text messages such as the rescue that sends from described the other side's side device, traffic management and control of display device;
-prewarning unit is made corresponding acousto-optic early warning action according to the control information that control module sends, and to display unit output early warning information;
-power supply and power interface are used for providing battery and vehicle power supply etc. to import power supplys to described device;
-reservation communications interface unit, be used for communicating by letter with the butt joint of other communication system or equipment, the communication port of the built-in reservation of interface, be used for the butt joint of emergency relief, intelligent transportation management and control and other communication system or equipment, send fault or accident rescue signal, react after the described device of vehicular traffic is received, these distress signals are transmitted the described device of all vehicular traffics.
2, communication device for avoiding risks among vehicles according to claim 1 is characterized in that: described sensor unit comprises that the vehicle ' speed of moment that detects, acceleration, direction, angle state parameter and detection vehicle have or not the various sensors that produce unusual high vibration situation because of collision.
3, communication device for avoiding risks among vehicles according to claim 1, it is characterized in that, described control module is made up of data acquisition module and data processing module, data acquisition module is used for gathering the vehicle running state data of described sensor unit, and submits to data processing module further to handle data; Data processing module carries out danger according to default dangerous kind and threshold values scope to be studied and judged, and the result is studied and judged in danger exports described prewarning unit and described Transmit-Receive Unit to, and control is to the transmission of the other side's side device.
4, communication device for avoiding risks among vehicles according to claim 1 is characterized in that: device also is provided with the manual operation button, in the situation that vehicle trouble, temporary parking, congestion in road or disastershutdown occur, warns front vehicle fast and notes dodging.
5, communication device for avoiding risks among vehicles according to claim 1, it is characterized in that: each vehicle is formed a provisional communication network automatically by this device, free two-way communication between each device in the network, even some devices have withdrawed from the provisional communication network of some space-time, device will keep data, spontaneously be delivered to next provisional communication network,, transmit information automatically optionally according to road driving direction and information value.
6, communication device for avoiding risks among vehicles according to claim 1, it is characterized in that, also comprise: kill engine at vehicle, the speed of a motor vehicle be zero or certain hour that silent status manually is set at interval after, described device will enter the low-power power modes, promptly close the light warning function of prewarning unit, the display terminal of display unit, sensor unit sensor and the vibration transducer operation of only keeping at a distance.
7, a kind of communication device for avoiding risks among vehicles data processing method is characterized in that step is as follows:
Transport condition data from the extracting data vehicle of described sensor unit;
Transport condition data from extracting data the other side's side vehicle of described Transmit-Receive Unit;
Obtain the recognition data of described device;
Obtain data such as rescue that described the other side's side device sends, traffic management and control;
The change in displacement of the three-dimensional coordinate of described device with registration of vehicle is set, and the x axle is represented the left and right displacement of car, and the y axle is represented the front and back displacement of car, and the t axle is represented the variation of time;
The virtual protection scope being set, according to the physical parameters such as length of vehicle, setting the protection domain of vehicle, is the data of one group of virtual vehicle profile, the protected area scope of simulating vehicle.
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