Anti-collision method and system under different vehicle conditions

An anti-collision system and vehicle condition technology, applied in anti-collision systems, traffic control systems of road vehicles, traffic control systems, etc., can solve problems such as ineffectiveness, large amount of calculation, delayed accident warning, etc.

Active Publication Date: 2015-04-22
四川九洲投资控股集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the transmission and acquisition of information can be fast and accurate, it cannot be timely, targeted and effective
First of all, vehicle safety information does not have the distinction of risk levels, which will lead to the failure of timely delivery of vehicle information that is most likely to cause collisions or safety accidents, delaying early warning of accidents
Secondly, the frequency, content and method of sending and receiving vehicle information under different vehicle conditions cannot be differentiated, making vehicle collision avoidance warnings untargeted
Finally, by se

Method used

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  • Anti-collision method and system under different vehicle conditions
  • Anti-collision method and system under different vehicle conditions
  • Anti-collision method and system under different vehicle conditions

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Experimental program
Comparison scheme
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Embodiment 1

[0081] The embodiment of the present invention needs to install a Beidou module, a sensor module, a DSRC OBU module supporting the 802.11p wireless communication protocol, and a microprocessor MCU module on the vehicle;

[0082] Among them, the Beidou module is used to receive vehicle location information and Beidou timing information;

[0083] The sensor module is used to obtain the acceleration and speed information of the vehicle in real time;

[0084] The OBU module is used to realize the establishment of communication links and bidirectional reliable data transmission between moving vehicles;

[0085] The MCU module is used for vehicle system time calibration, vehicle running trajectory calculation, running trajectory collision detection and early warning signal output.

[0086] Those skilled in the art can know that the Beidou module is used to provide position and timing information, and can be replaced by a GPS system module, a Galileo system module, or a GLONASS syst...

Embodiment 2

[0091] Embodiments of the present invention also provide an anti-collision system, see appendix Figure 4 . The system involves one or more vehicles, and each vehicle includes a vehicle condition judgment module, a trajectory calculation module and a collision detection module. The vehicle condition judging module is used to judge the current condition of the own vehicle, and determine the trajectory calculation amount and the trajectory calculation period of the own vehicle accordingly. The trajectory calculation module is used to simplify and extract the vehicle running state information such as speed, acceleration, position, time point, etc. into trajectory point data, and broadcast the trajectory data. The collision detection module is used to receive trajectory data broadcast by other vehicles, and perform collision detection calculation in combination with its own trajectory data.

Embodiment 3

[0095]An embodiment of the present invention provides a method for judging a vehicle condition, where the vehicle condition specifically includes a safe vehicle distance requirement, a current vehicle speed, and the like. In the method of this embodiment, according to the existing requirements for safe vehicle distance (such as appendix Figure 5 The threshold value of the highway safety sight distance shown) and the current vehicle speed are judged, thereby determining the trajectory calculation amount of the own vehicle and the trajectory calculation period. The implementation of the method can complete more accident early warning processing with less network throughput.

[0096] In order to meet the requirements of safe vehicle distance, the present invention defines the trajectory calculation amount and information transmission period for various vehicle speeds as follows:

[0097] Table 1 Trajectory calculation standards at different vehicle speeds

[0098] Veh...

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Abstract

The invention discloses an anti-collision method and system under different vehicle conditions, and belongs to the technical field of vehicle safety. The method includes the steps that the vehicle conditions are judged according to the vehicle speed and the corresponding safety distance, and the trajectory calculation quantity, the trajectory computing cycle, and the information sending cycle are determined according to the different vehicle conditions, vehicle trajectories are calculated according to the trajectory calculation quantity, the trajectory computing cycle and vehicle running states, the vehicle trajectories are periodically broadcast, anti-collision detection is conducted through the comparison between the vehicle trajectory of one vehicle and the vehicle trajectories of other vehicles, and if it is detected that a collision possible occurs, an early warning signal is output. The anti-collision method and system under the different vehicle conditions can achieve distinguishing of different risk levels of the vehicles through a vehicle condition determination strategy, targeted anti-collision warming for dangerous vehicles can be conducted, information transmission amount can be reduced through scattering the trajectory calculation to each vehicle, the decision making early warning speed test is improved, the occurrence of the vehicle collision is effectively prevented, and traffic accidents are reduced.

Description

technical field [0001] The invention relates to the field of computers and communications, and in particular to a collision avoidance method and system under different vehicle conditions. Background technique [0002] my country is a country with frequent traffic accidents. Traffic accidents will cause huge personal casualties and property losses every year. How to predict, warn and effectively prevent traffic accidents has always been a focus of research on related issues. With the continuous development of communication and mapping technology, on the one hand, based on the existing Beidou satellite navigation system, accurate and real-time acquisition of car-related information has become possible; With the gradual formation of technology), the information interaction between vehicles has become more rapid and convenient. In addition, the Internet of Vehicles gradually formed on the basis of the two provides effective information support for automobile collision avoidance...

Claims

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Application Information

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IPC IPC(8): G08G1/16
CPCG08G1/166G08G1/167
Inventor 陈莞吕昱申及徐锦亮唐勇
Owner 四川九洲投资控股集团有限公司
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