System for driving track identification and data acquisition device thereof

Abstract

The invention discloses a system for traveling track identification and a data acquisition device of the system. The data acquisition device comprises a processor, a first acquisition module, a locating module, a second acquisition module and a storage module. The first acquisition module is used for acquiring control instruction information, response message information and vehicle condition information through a CAN bus of a vehicle, wherein the control instruction information is sent by an electronic control system of the vehicle to an executable unit, and the response message information and the vehicle condition information are sent by the executable unit to the electronic control system; the locating module is used for obtaining position information and driving direction information of the vehicle; the second acquisition module is used for acquiring fault information of the vehicle from a vehicle diagnostic system; and the storage module is controlled by the processor to be used for storing the information acquired by the first acquisition module, the locating module and the second acquisition. Through implementation of the technical scheme, an active operation behavior of a driver, vehicle conditions and fault conditions of all systems of the vehicle obtained before and after accidents can be restored, and the factor of manual intervention in the accidental evaluation process can be reduced, so that a traffic accidental evaluation result or insurance claims are more accurate and reasonable.

Description

technical field [0001] The invention relates to the field of intelligent transportation, in particular to a system for identifying driving tracks and a data acquisition device thereof. Background technique [0002] Driving trajectory identification refers to describing the movement status of the accident vehicle before the accident, including the driving speed, movement trajectory, driver measures, etc., and also describing every process of the accident vehicle when the accident occurred, and the risk-avoiding measures taken by the driver Wait, completely reproduce the whole process of the accident. [0003] At present, when appraising traffic accidents or insurance claims, it mainly relies on on-site survey results after the accident, and uses physical formulas to calculate and restore vehicle operating condition parameters, such as "Technical Appraisal of Vehicle Speed ​​in Typical Traffic Accident Forms" issued by the Ministry of Public Security The speed calculation met...

AI Technical Summary

Problems solved by technology

[0004] (1) It is difficult to guarantee the accuracy of on-site survey data, which may lead to errors in the calculation of vehicle operating condition data;

[0005] (2) Using the formula to restore the vehicle operating condition data, the correctness is doubtful;

[0006] (3) Only part of the working condition data can be restored, mainly the instantaneous speed of the car and the braking distance

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