Method for judging accident doubt on basis of vehicle-mounted travelling data recorder

A driving recorder and vehicle speed technology, which is applied in the direction of registration/indication of vehicle operation, instruments, registration/indication, etc., can solve problems such as accident data with no practical significance, and achieve the effect of increasing the usable value

Active Publication Date: 2014-03-26
XIAMEN YAXON NETWORKS CO LTD
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Problems solved by technology

[0005] To sum up, because the traditional method of recording suspicious accident points does not carry out correlation analysis and filtering on the collected data according to the characteristics of the vehicle accident and the changing law of the vehicle’s driving speed before it stops, the recorder saves a large amount of suspicious accident data that has no practical significance.

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  • Method for judging accident doubt on basis of vehicle-mounted travelling data recorder
  • Method for judging accident doubt on basis of vehicle-mounted travelling data recorder
  • Method for judging accident doubt on basis of vehicle-mounted travelling data recorder

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Embodiment Construction

[0031] The invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0032] As a specific embodiment, a method for judging suspicious points of an accident based on a vehicle-mounted travel recorder of the present invention includes the following steps:

[0033] Step 1: During the running of the vehicle, use T 0 (milliseconds) to collect vehicle speed data at intervals as the speed collection value, and store the speed collection value in the cache. The speed data in the positioning module is obtained, and the collection interval is T 0 The range of values ​​is 10-200 milliseconds. The smaller the collection interval, the more accurate the statistics of the speed of subsequent vehicles. It should be determined according to the specific processing capacity of the terminal of the driving recorder, and generally not greater than 200 milliseconds. figure 2 and Figure 4 Medium collection interval T 0 for 200 ms, figure 1 an...

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Abstract

The invention relates to the technical field of vehicle accident early warning, in particular to a method for judging accident doubt on the basis of a vehicle-mounted travelling data recorder. The urgency degree of vehicle speed change before parking is analyzed by calculating the standard deviation of speed values collected by the travelling data recorder before vehicle parking, recorded data of non-accident parking are further filtered in combination of different characteristics of speed change of normal parking and accident parking, and the available value of accident doubt data of the recorder is improved. The method can effectively filter recorded data of normal parking, and the recorder can store more effective accident doubt data.

Description

technical field [0001] The invention relates to the technical field of early warning of vehicle accidents, in particular to a method for judging doubtful points of an accident based on a vehicle travel recorder. Background technique [0002] With the increase of vehicles, traffic accidents are also increasing year by year, and driving recorders are being widely used as effective evidence and data for accident records, accident judgments, remote assistance, and responsibility judgments. The traditional way of judging and recording the suspicious points of the accident of the driving recorder is simply to record the speed and signal data of the vehicle 20 seconds before it reaches a standstill after the vehicle stops. This method only relies on the change of the vehicle from the running state to the stationary state to judge whether there is an accident suspect point. The method obviously has the following disadvantages: [0003] The judgment conditions are too loose, and mos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07C5/08
Inventor 郑振贵刘伟峰许振坪郭亚松唐磊林德辉
Owner XIAMEN YAXON NETWORKS CO LTD
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