Method and system for detecting traffic accidents

A technology for traffic incidents and incidents, applied in the field of traffic incident detection and vehicle-to-road communication, can solve problems such as road damage, cumbersome installation process, and difficulty in ensuring real-time performance, and achieve the effect of reducing installation costs and avoiding the installation process.

Active Publication Date: 2015-07-01
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] According to the above introduction, it can be seen that the sensor detection method in the prior art needs to install sensors on the road, and the density of the sensors is required, but on the road without sensors, it is impossible to detect traffic incidents; in addition, after installing the coil The sensor also needs to destroy the existing roads, so the installation process is relatively cumbersome and the cost is relatively high; if the camera is used for shooting, the video files captured by the camera are generally large, so the transmission and processing of the video files require a certain amount of time. time, making it difficult to guarantee real-time requirements
In the existing traffic incident detection method based on user sharing, each user is required to actively collect and upload information, so it is difficult to ensure that each user can actively collect and upload information; After the data information, it is also necessary to determine the general location of the traffic incident, but for the traffic incidents where the location is relatively remote, it is difficult to determine the location of the traffic incident

Method used

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  • Method and system for detecting traffic accidents

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0089] Embodiment 1. Detection of traffic jam events.

[0090] In a preferred embodiment of the present invention, the confirmation of whether a traffic event occurs and the type of the traffic event that occurs can be:

[0091] When the actual average driving speed of each vehicle on the detected road section is less than the preset first threshold, and the number of vehicles with a driving speed of 0 on the detected road section is less than the preset second threshold, then it is judged that the detected A traffic jam occurred on the road section;

[0092] Or, when the driving speed of the vehicle exceeding the preset first ratio on the detected road section is less than the preset first threshold, and the duration exceeds the preset first time threshold, it is determined that a vehicle has occurred on the detected road section. traffic jam event.

[0093] Preferably, in a specific embodiment of the present invention, before judging that a traffic jam event has occurred o...

Embodiment 2

[0119] Embodiment 2, detection of traffic accidents.

[0120] The characteristics of road traffic accidents are: the driving speed of a certain vehicle suddenly decreases to 0, and the state of driving speed will continue for a period of time, and the driving speed of one or several vehicles around the vehicle also suddenly decreases. is 0. The road conditions in front of the car will not change, and the speed of the vehicle behind the car will slow down. Therefore, the traffic accident event can be detected according to the characteristics of the above traffic accident event.

[0121] For example, in a preferred embodiment of the present invention, the confirmation of whether a traffic event occurs and the type of the traffic event that occurs may be:

[0122] When at least two vehicles on the detected road section stop suddenly (that is, the driving speed drops to 0 and stop) and the duration of the stop exceeds the preset second time threshold, and the distance between th...

Embodiment 3

[0129] Embodiment 3, detection of a vehicle failure event.

[0130] In a preferred embodiment of the present invention, the confirmation of whether a traffic event occurs and the type of the traffic event that occurs can be:

[0131] When the driving speed of at least one vehicle on the detected road section gradually drops to 0 and stops, and there is no other vehicle stopping within the preset first distance from the stopped vehicle (that is, the driving speed of other vehicles around the stopped vehicle has a certain decrease but not decrease to 0 and stop), it is determined that a vehicle failure event has occurred on the detected road section, that is, the stopped vehicle has a failure and has stopped.

[0132] In the technical solution of the present invention, the value of the above-mentioned first distance may be preset according to actual application conditions. For example, in a preferred embodiment of the present invention, the first distance may be 5 meters.

[0...

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Abstract

The invention provides a method and system for detecting traffic accidents. The method comprises the steps: real-timely acquiring state information of vehicles and transmitting vehicle identification information and acquired state information to a traffic information centre; and the traffic information centre confirms whether traffic accidents happen or confirms the type of the happened traffic accidents according to the received vehicle identification information and state information. By adopting the invention, the required acquired and transmitted data information is relatively simple and the requirement to wireless transmission is relatively low, so that the data transmission real-timeliness and the transmission speed can be protected well; moreover, the installation of other information acquisition and transmission systems on the vehicles is not needed, so that the tedious installation process is avoided and the installation cost is reduced.

Description

technical field [0001] The present application relates to the technical fields of vehicle-road communication and traffic event detection, and in particular to a method and system for detecting traffic events. Background technique [0002] With the continuous development of our country's transportation industry, the number of automobiles keeps increasing, which brings huge pressure to road resources and also causes many traffic accidents. [0003] Traffic events refer to events that occur aperiodically and reduce the traffic capacity of a road, such as traffic accidents, breakdown parking, scattered goods, road maintenance, vehicles going against the road, lane changes, speeding, slow speed, stop, traffic jams, etc. Since traffic events have a great impact on people's travel, it is of great significance to accurately detect traffic events. [0004] At present, the methods of traffic incident detection frequently used in the prior art can be roughly divided into two categorie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01G08G1/052G08G1/127
CPCG08G1/0108G08G1/052G08G1/127
Inventor 张喆赵婷婷丁迅刘祎杨景
Owner CHINA MOBILE COMM GRP CO LTD
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