CN103303309B - Rear-end collision anti-collision warning method and system - Google Patents
Rear-end collision anti-collision warning method and system Download PDFInfo
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Abstract
The invention discloses a kind of rear-end collision anti-collision warning method and system, belong to field of automotive active safety.Described system includes: obtain the speed information of current vehicle；The positional information of the current vehicle that receiving world locational system sends, positional information includes: longitude, latitude and ground course angle；Receive speed information and the positional information of other cars in preset range；Judging that current vehicle and other cars are whether on same path, whether current vehicle and other cars travel in the same direction, it is determined that the safe distance of current vehicle and other cars, and calculate the actual range of current vehicle and other cars, compare the size of safe distance and actual range；When current vehicle and other cars on same path, travel in the same direction and actual range less than safe distance time, it is determined that current vehicle can knock into the back with other cars.Technical scheme cost provided by the invention is low, and precision is high.
Description
Technical field
The present invention relates to field of automobile safety, particularly to a kind of rear-end collision anti-collision warning method and system.
Background technology
Knock into the back refer to the vehicle of same lanes trail and during row, the behavior that rear car front bumps against with the front truck tailstock.
In road traffic accident, rear-end collision accounts for 30-40%, in order to effectively prevent the generation of rear-end collision, existing automobile can be installed a kind of rear-end impact early warning system, this system includes: range cells, processor and warning lamp, range cells is used for measuring the distance of this car and front truck, and by the Distance Transmission that records to processor；When the distance recorded is less than safe distance, processor exports alarm command to warning lamp, and warning lamp starts reports to the police.Range cells can be radar range finding sensor or photographic head range unit.
In the process realizing the present invention, inventor have found that prior art at least there is problems in that
On the one hand, radar range finding sensor or photographic head range unit cost are high；On the other hand, when vile weathers such as wet weather, radar range finding sensor or photographic head range unit accuracy of measurement are not high, influential system performance.
Summary of the invention
High in order to solve cost in prior art, and in the vile weathers such as wet weather, the problem that accuracy of measurement is not high, embodiments provide a kind of rear-end collision anti-collision warning method and system.Described technical scheme is as follows:
On the one hand, embodiments providing a kind of rear-end collision anti-collision warning method, described method includes:
Obtaining the speed information of current vehicle, described speed information includes: speed and acceleration；
The positional information of the described current vehicle that receiving world locational system sends, described positional information includes: longitude, latitude and ground course angle；
Receive speed information and the positional information of other cars in preset range；
Longitude according to described current vehicle and other cars described and latitude, judge that described current vehicle and other cars described are whether on same path, ground course angle according to described current vehicle and other cars described, judge whether described current vehicle and other cars described travel in the same direction, velocity information according to described current vehicle and other cars described, determine the safe distance of described current vehicle and other cars described, and according to the longitude of described current vehicle and other cars described and latitude, calculate described current vehicle and the actual range of other cars described, the relatively size of described safe distance and described actual range；
When described current vehicle and other cars described on same path, described current vehicle and other cars described travel in the same direction and described actual range less than described safe distance time, it is determined that described current vehicle can knock into the back with other cars described；
Wherein, the described longitude according to described current vehicle and other cars described and latitude, it is judged that described current vehicle and other cars described whether on same path, including:
Longitude according to described current vehicle and latitude, it is determined that the road residing for described current vehicle；
Longitude according to other cars described and latitude, it is determined that the road residing for other cars described；
Judging that whether the road residing for described current vehicle is identical with the road residing for other cars described, if identical, then described current vehicle and other cars described are on same path；
The described longitude according to described current vehicle and latitude, it is determined that the road residing for described current vehicle, according to the longitude of other cars described and latitude, it is determined that the road residing for other cars described, including:
By the position searching described current vehicle and the longitude of other cars described on electronic chart, latitude is corresponding, it is determined that described current vehicle and the road residing for other cars described.
In a kind of implementation of the embodiment of the present invention, described preset range is the communication range of DSRC.
In the another kind of implementation of the embodiment of the present invention, described method also includes:
Interval other cars described in described preset range on schedule, send described speed information and the positional information of described current vehicle.
In the another kind of implementation of the embodiment of the present invention, described method also includes:
When determining that described current vehicle can knock into the back with other cars described, carry out sound and light alarm.
On the other hand, the embodiment of the present invention additionally provides a kind of rear-end collision collision warning systems, and described system includes:
Acquisition module, for obtaining the speed information of current vehicle, described speed information includes: speed and acceleration；
Locating module, for the positional information of the described current vehicle that receiving world locational system sends, described positional information includes: longitude, latitude and ground course angle；
Receiver module, for receiving speed information and the positional information of other cars in preset range；
Processing module, for the longitude according to described current vehicle and other cars described and latitude, judge that described current vehicle and other cars described are whether on same path, ground course angle according to described current vehicle and other cars described, judge whether described current vehicle and other cars described travel in the same direction, velocity information according to described current vehicle and other cars described, determine the safe distance of described current vehicle and other cars described, and according to the longitude of described current vehicle and other cars described and latitude, calculate described current vehicle and the actual range of other cars described, the relatively size of described safe distance and described actual range；When described current vehicle and other cars described on same path, described current vehicle and other cars described travel in the same direction and described actual range less than described safe distance time, it is determined that described current vehicle can knock into the back with other cars described；
Wherein, described processing module, specifically for:
Longitude according to described current vehicle and latitude, it is determined that the road residing for described current vehicle；
Longitude according to other cars described and latitude, it is determined that the road residing for other cars described；
Judging that whether the road residing for described current vehicle is identical with the road residing for other cars described, if identical, then described current vehicle and other cars described are on same path；
Described processing module, specifically for:
By the position searching described current vehicle and the longitude of other cars described on electronic chart, latitude is corresponding, it is determined that described current vehicle and the road residing for other cars described.
In a kind of implementation of the embodiment of the present invention, described acquisition module includes: Controller Area Network BUS, and described Controller Area Network BUS is connected with the velocity sensor of described current vehicle.
In the another kind of implementation of the embodiment of the present invention, described receiver module includes: DSRC unit.
In the another kind of implementation of the embodiment of the present invention, described system also includes:
Sending module, for interval other cars described in described preset range on schedule, sends described speed information and the positional information of described current vehicle.
In the another kind of implementation of the embodiment of the present invention, described system also includes:
Alarm module, for when described processing module determines that described current vehicle can knock into the back with other cars described, carrying out sound and light alarm.
The technical scheme that the embodiment of the present invention provides has the benefit that
By obtaining speed information and the positional information of current vehicle, and receive speed information and the positional information of other cars in preset range, judge that current vehicle and other cars are whether on same path, judge whether current vehicle and other cars travel in the same direction, compare the size of the current vehicle safe distance with other cars and actual range, when current vehicle and other cars are on same path, travel in the same direction, and actual range less than safe distance time, determine that current vehicle can knock into the back with other cars, avoid the high cost using radar range finding sensor or photographic head range unit to cause, and prior-warning device precision is high, ensure that automotive safety.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in the embodiment of the present invention, below the accompanying drawing used required during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the rear-end collision anti-collision warning method flow diagram that the embodiment of the present invention one provides；
Fig. 2 is the rear-end collision anti-collision warning method flow diagram that the embodiment of the present invention two provides；
Fig. 3 is the structural representation of the rear-end collision collision warning systems that the embodiment of the present invention three provides；
Fig. 4 is the structural representation of the rear-end collision collision warning systems that the embodiment of the present invention four provides.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment one
Embodiments providing a kind of rear-end collision anti-collision warning method, referring to Fig. 1, the method includes:
Step 101: obtaining the speed information of current vehicle, this speed information includes speed and acceleration.
Step 102: receiving the positional information of GPS (GlobalPositioningSystem, the global positioning system) current vehicle sent, this positional information includes: longitude, latitude and ground course angle.Wherein, for the object of motion (automobile in the present embodiment), in the positional information that GPS sends except including longitude and latitude, also include the movement direction angle of moving object, i.e. above-mentioned ground course angle.
Step 103: receive speed information and the positional information of other cars in preset range.
Step 104: according to the longitude of current vehicle and other cars and latitude, judge that current vehicle and other cars are whether on same path, ground course angle according to current vehicle He other cars, judge whether current vehicle and other cars travel in the same direction, velocity information according to current vehicle He other cars, it is determined that the safe distance of current vehicle and other cars, and according to the longitude of current vehicle and other cars and latitude, calculate the actual range of current vehicle and other cars, compare the size of safe distance and actual range；When current vehicle and other cars on same path, current vehicle and other cars travel in the same direction and actual range less than safe distance time, it is determined that current vehicle can knock into the back with other cars.
The embodiment of the present invention is by obtaining speed information and the positional information of current vehicle, and receive speed information and the positional information of other cars in preset range, judge that current vehicle and other cars are whether on same path, judge whether current vehicle and other cars travel in the same direction, compare the size of the current vehicle safe distance with other cars and actual range, when current vehicle and other cars are on same path, travel in the same direction, and actual range less than safe distance time, determine that current vehicle can knock into the back with other cars, avoid the high cost using radar range finding sensor or photographic head range unit to cause, and prior-warning device precision is high, ensure that automotive safety.
Embodiment two
Embodiments providing a kind of rear-end collision anti-collision warning method, referring to Fig. 2, the method includes:
Step 201: obtaining the speed information that the velocity sensor of current vehicle records, this speed information includes speed and acceleration.
Step 202: receiving the positional information of the GPS current vehicle sent, this positional information includes: longitude, latitude and ground course angle.
Step 203: receive speed information and the positional information of other cars in preset range.
Step 204: according to the longitude of current vehicle and other cars and latitude, judge that current vehicle and other cars are whether on same path, ground course angle according to current vehicle He other cars, judge whether current vehicle and other cars travel in the same direction, velocity information according to current vehicle He other cars, it is determined that the safe distance of current vehicle and other cars, and according to the longitude of current vehicle and other cars and latitude, calculate the actual range of current vehicle and other cars, compare the size of safe distance and actual range；When current vehicle and other cars on same path, current vehicle and other cars travel in the same direction and actual range less than safe distance time, it is determined that current vehicle can knock into the back with other cars.
Wherein, step 204 includes following two implementation:
First kind of way:
The first step, according to the longitude of current vehicle and other cars and latitude, it is judged that whether current vehicle and other cars, on same path, when current vehicle and other cars are on same path, perform second step, otherwise terminate this flow process.Second step, the ground course angle according to current vehicle He other cars, it is judged that whether current vehicle and other cars travel in the same direction, when current vehicle and other cars travel in the same direction, perform the 3rd step, otherwise terminate this flow process.3rd step, velocity information according to current vehicle He other cars, determine the safe distance of current vehicle and other cars, and according to the longitude of current vehicle and other cars and latitude, calculate the actual range of current vehicle and other cars, the relatively size of safe distance and actual range, when actual range is less than safe distance, it is determined that current vehicle can knock into the back with other cars.
In first kind of way, the first step can also be judge whether current vehicle and other cars travel in the same direction, or compare the size of safe distance and actual range, the content of second step and the 3rd step also changes therewith, but the condition must invariably being fulfilled for the first step just can carry out second step, meet second step and just can carry out the 3rd step.
The second way:
The first step, according to the longitude of current vehicle and other cars and latitude, it is judged that whether current vehicle and other cars are on same path.Second step, the ground course angle according to current vehicle He other cars, it is judged that whether current vehicle and other cars travel in the same direction.3rd step, the velocity information according to current vehicle He other cars, it is determined that the safe distance of current vehicle and other cars, and according to the longitude of current vehicle and other cars and latitude, calculate the actual range of current vehicle and other cars, compare the size of safe distance and actual range.4th step, when current vehicle and other cars on same path, current vehicle and other cars travel in the same direction and actual range less than safe distance time, it is determined that current vehicle can knock into the back with other cars.
In second in mode, between the first step, second step and the 3rd step, there is no precedence relationship.
What deserves to be explained is, when there is many other cars in preset range, above-mentioned steps 204 is not only suitable for judging other cars every time, is also applied for judging many other cars every time.
Specifically, the above-mentioned longitude according to current vehicle and other cars and latitude, it is judged that current vehicle and other cars whether on same path, including:
Step one, according to the longitude of current vehicle and latitude, it is determined that the road residing for current vehicle；
Step 2, according to the longitude of other cars and latitude, it is determined that the road residing for other cars；
Step 3, judging that whether the road residing for current vehicle is identical with the road residing for other cars, if identical, then whether current vehicle and other cars are on same path.
It is possible to further by the position searching current vehicle and the longitude of other cars on electronic chart, latitude is corresponding, so that it is determined that current vehicle and the road residing for other cars.
Specifically, the velocity information according to current vehicle He other cars, it is determined that the safe distance of current vehicle and other cars, it is possible to be the corresponding relation according to the speed preset and safe distance, it is determined that the safe distance that current vehicle speed is corresponding.
Above-mentioned preset range can be the communication range of DSRC (DedicatedShortRangeCommunication, DSRC), and communication range is typically in 100-1000m.What deserves to be explained is, except the positional information receiving the transmission of other cars and speed information, the method can also include, and sends positional information and the speed information of current vehicle to other cars in preset range.
Further, the method also includes: interval is to other cars in preset range on schedule, sends speed information and the positional information of current vehicle.
Step 205: when determining that current vehicle can knock into the back with other cars, carry out sound and light alarm.
The embodiment of the present invention is by obtaining speed information and the positional information of current vehicle, and receive speed information and the positional information of other cars in preset range, judge that current vehicle and other cars are whether on same path, judge whether current vehicle and other cars travel in the same direction, compare the size of the current vehicle safe distance with other cars and actual range, when current vehicle and other cars are on same path, travel in the same direction, and actual range less than safe distance time, determine that current vehicle can knock into the back with other cars, avoid the high cost using radar range finding sensor or photographic head range unit to cause, and prior-warning device precision is high, ensure that automotive safety.
Embodiment three
Embodiments providing a kind of rear-end collision collision warning systems, referring to Fig. 3, this system includes:
Acquisition module 301, for obtaining the speed information of current vehicle, this speed information includes speed and acceleration；
Locating module 302, for receiving the positional information of the GPS current vehicle sent, this positional information includes: longitude, latitude and ground course angle；
Receiver module 303, for receiving speed information and the positional information of other cars in preset range；
Processing module 304, for the longitude according to current vehicle and other cars and latitude, judge that current vehicle and other cars are whether on same path, ground course angle according to current vehicle He other cars, it is judged that whether current vehicle and other cars travel in the same direction, the velocity information according to current vehicle He other cars, determine the safe distance of current vehicle and other cars, and according to the longitude of current vehicle and other cars and latitude, calculate the actual range of current vehicle and other cars, compare the size of safe distance and actual range；When current vehicle and other cars on same path, current vehicle and other cars travel in the same direction and actual range less than safe distance time, it is determined that current vehicle can knock into the back with other cars.
The embodiment of the present invention is by obtaining speed information and the positional information of current vehicle, and receive speed information and the positional information of other cars in preset range, judge that current vehicle and other cars are whether on same path, judge whether current vehicle and other cars travel in the same direction, compare the size of the current vehicle safe distance with other cars and actual range, when current vehicle and other cars are on same path, travel in the same direction, and actual range less than safe distance time, determine that current vehicle can knock into the back with other cars, avoid the high cost using radar range finding sensor or photographic head range unit to cause, and prior-warning device precision is high, ensure that automotive safety.
Embodiment four
Embodiments providing a kind of rear-end collision collision warning systems, referring to Fig. 4, this system includes:
Acquisition module 401, locating module 402, receiver module 403 and processing module 404.
Wherein, acquisition module 401, for obtaining the speed information that the velocity sensor of current vehicle records, this speed information includes speed and acceleration；
Locating module 402, for receiving the positional information of the GPS current vehicle sent, this positional information includes: longitude, latitude and ground course angle；
Receiver module 403, for receiving speed information and the positional information of other cars in preset range；
Processing module 404, for the longitude according to current vehicle and other cars and latitude, judge that current vehicle and other cars are whether on same path, ground course angle according to current vehicle He other cars, it is judged that whether current vehicle and other cars travel in the same direction, the velocity information according to current vehicle He other cars, determine the safe distance of current vehicle and other cars, and according to the longitude of current vehicle and other cars and latitude, calculate the actual range of current vehicle and other cars, compare the size of safe distance and actual range；When current vehicle and other cars on same path, current vehicle and other cars travel in the same direction and actual range less than safe distance time, it is determined that current vehicle can knock into the back with other cars.
Wherein, processing module 404 is operationally, it is possible to have following two implementation:
First kind of way:
The first step, according to the longitude of current vehicle and other cars and latitude, it is judged that whether current vehicle and other cars, on same path, when current vehicle and other cars are on same path, perform second step, otherwise terminate this flow process.Second step, the ground course angle according to current vehicle He other cars, it is judged that whether current vehicle and other cars travel in the same direction, when current vehicle and other cars travel in the same direction, perform the 3rd step, otherwise terminate this flow process.3rd step, velocity information according to current vehicle He other cars, determine the safe distance of current vehicle and other cars, and according to the longitude of current vehicle and other cars and latitude, calculate the actual range of current vehicle and other cars, the relatively size of safe distance and actual range, when actual range is less than safe distance, it is determined that current vehicle can knock into the back with other cars.
In first kind of way, the first step can also be judge whether current vehicle and other cars travel in the same direction, or compare the size of safe distance and actual range, the content of second step and the 3rd step also changes therewith, but the condition must invariably being fulfilled for the first step just can carry out second step, meet second step and just can carry out the 3rd step.
The second way:
The first step, according to the longitude of current vehicle and other cars and latitude, it is judged that whether current vehicle and other cars are on same path.Second step, the ground course angle according to current vehicle He other cars, it is judged that whether current vehicle and other cars travel in the same direction.3rd step, the velocity information according to current vehicle He other cars, it is determined that the safe distance of current vehicle and other cars, and according to the longitude of current vehicle and other cars and latitude, calculate the actual range of current vehicle and other cars, compare the size of safe distance and actual range.4th step, when current vehicle and other cars on same path, current vehicle and other cars travel in the same direction and actual range less than safe distance time, it is determined that current vehicle can knock into the back with other cars.
In second in mode, between the first step, second step and the 3rd step, there is no precedence relationship.
What deserves to be explained is, when there is many other cars in preset range, above-mentioned processing module 404 is not only suitable for judging other cars every time, is also applied for judging many other cars every time.
Specifically, processing module 404 can according to the longitude of current vehicle and latitude, it is determined that the road residing for current vehicle；Longitude according to other cars and latitude, it is determined that the road residing for other cars；Judging that whether the road residing for current vehicle is identical with the road residing for other cars, if identical, then whether current vehicle and other cars are on same path.Processing module 404 can pre-set electronic chart, by the position searching current vehicle and the longitude of other cars on electronic chart, latitude is corresponding, so that it is determined that residing road.
Specifically, processing module 404 can according to the velocity information of current vehicle He other cars, it is determined that the safe distance of current vehicle and other cars, it is possible to be the corresponding relation according to the speed preset and safe distance, it is determined that the safe distance that current vehicle speed is corresponding.
Preferably, acquisition module 401 includes: CAN (ControllerAreaNetwork, controller local area network) bus, CAN is connected with the velocity sensor of current vehicle.Velocity sensor is for measuring speed and the acceleration of current vehicle.
Preferably, receiver module 403 includes: DSRC unit.Above-mentioned preset range can be the communication range of DSRC, and communication range is typically in 100-1000m.
Further, this system also includes: sending module 405, for interval on schedule to other cars in preset range, sends speed information and the positional information of current vehicle.
Further, this system also includes: alarm module 406, for when processing module 404 judges that current vehicle can knock into the back with other cars, carrying out sound and light alarm.
The embodiment of the present invention is by obtaining speed information and the positional information of current vehicle, and receive speed information and the positional information of other cars in preset range, judge that current vehicle and other cars are whether on same path, judge whether current vehicle and other cars travel in the same direction, compare the size of the current vehicle safe distance with other cars and actual range, when current vehicle and other cars are on same path, travel in the same direction, and actual range less than safe distance time, determine that current vehicle can knock into the back with other cars, avoid the high cost using radar range finding sensor or photographic head range unit to cause, and prior-warning device precision is high, ensure that automotive safety.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can be completed by hardware, can also be completed by the hardware that program carrys out instruction relevant, described program can be stored in a kind of computer-readable recording medium, storage medium mentioned above can be read only memory, disk or CD etc..
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (9)
1. a rear-end collision anti-collision warning method, it is characterised in that described method includes:
Obtaining the speed information of current vehicle, described speed information includes: speed and acceleration；
The positional information of the described current vehicle that receiving world locational system sends, described positional information includes: longitude, latitude and ground course angle；
Receive speed information and the positional information of other cars in preset range；
Longitude according to described current vehicle and other cars described and latitude, judge that described current vehicle and other cars described are whether on same path, ground course angle according to described current vehicle and other cars described, judge whether described current vehicle and other cars described travel in the same direction, velocity information according to described current vehicle and other cars described, determine the safe distance of described current vehicle and other cars described, and according to the longitude of described current vehicle and other cars described and latitude, calculate described current vehicle and the actual range of other cars described, the relatively size of described safe distance and described actual range；
When described current vehicle and other cars described on same path, described current vehicle and other cars described travel in the same direction and described actual range less than described safe distance time, it is determined that described current vehicle can knock into the back with other cars described；
Wherein, the described longitude according to described current vehicle and other cars described and latitude, it is judged that described current vehicle and other cars described whether on same path, including:
Longitude according to described current vehicle and latitude, it is determined that the road residing for described current vehicle；
Longitude according to other cars described and latitude, it is determined that the road residing for other cars described；
Judging that whether the road residing for described current vehicle is identical with the road residing for other cars described, if identical, then described current vehicle and other cars described are on same path；
The described longitude according to described current vehicle and latitude, it is determined that the road residing for described current vehicle, according to the longitude of other cars described and latitude, it is determined that the road residing for other cars described, including:
By the position searching described current vehicle and the longitude of other cars described on electronic chart, latitude is corresponding, it is determined that described current vehicle and the road residing for other cars described.
2. method according to claim 1, it is characterised in that described preset range is the communication range of DSRC.
3. method according to claim 1, it is characterised in that described method also includes:
Interval other cars described in described preset range on schedule, send described speed information and the positional information of described current vehicle.
4. the method according to any one of claim 1-3, it is characterised in that described method also includes:
When determining that described current vehicle can knock into the back with other cars described, carry out sound and light alarm.
5. rear-end collision collision warning systems, it is characterised in that described system includes:
Acquisition module, for obtaining the speed information of current vehicle, described speed information includes: speed and acceleration；
Locating module, for the positional information of the described current vehicle that receiving world locational system sends, described positional information includes: longitude, latitude and ground course angle；
Receiver module, for receiving speed information and the positional information of other cars in preset range；
Processing module, for the longitude according to described current vehicle and other cars described and latitude, judge that described current vehicle and other cars described are whether on same path, ground course angle according to described current vehicle and other cars described, judge whether described current vehicle and other cars described travel in the same direction, velocity information according to described current vehicle and other cars described, determine the safe distance of described current vehicle and other cars described, and according to the longitude of described current vehicle and other cars described and latitude, calculate described current vehicle and the actual range of other cars described, the relatively size of described safe distance and described actual range；When described processing module judge described current vehicle and other cars described on same path, described current vehicle and other cars described travel in the same direction and described actual range less than described safe distance time, it is determined that described current vehicle can knock into the back with other cars described；
Wherein, described processing module, specifically for:
Longitude according to described current vehicle and latitude, it is determined that the road residing for described current vehicle；
Longitude according to other cars described and latitude, it is determined that the road residing for other cars described；
Judging that whether the road residing for described current vehicle is identical with the road residing for other cars described, if identical, then described current vehicle and other cars described are on same path；
Described processing module, specifically for:
By the position searching described current vehicle and the longitude of other cars described on electronic chart, latitude is corresponding, it is determined that described current vehicle and the road residing for other cars described.
6. system according to claim 5, it is characterised in that described acquisition module includes: Controller Area Network BUS, described Controller Area Network BUS is connected with the velocity sensor of described current vehicle.
7. system according to claim 5, it is characterised in that described receiver module includes: DSRC unit.
8. system according to claim 5, it is characterised in that described system also includes:
Sending module, for interval other cars described in described preset range on schedule, sends described speed information and the positional information of described current vehicle.
9. the system according to any one of claim 5-8, it is characterised in that described system also includes:
Alarm module, for when described processing module determines that described current vehicle can knock into the back with other cars described, carrying out sound and light alarm.
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| CN103818348A (en) * | 2014-03-12 | 2014-05-28 | 李建彪 | Automobile safety management system and automobile safety management method |
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| CN105469617A (en) * | 2014-08-20 | 2016-04-06 | 中兴通讯股份有限公司 | Driving safety assisting method and driving safety assisting device |
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