Method and device for reducing the probability of learning the wrong straight-line direction of a vehicle

Abstract

Embodiments of the present invention disclose a method and device for reducing the probability of learning a wrong straight-line direction of vehicle driving. The method includes: when it is determined that the driving state of the vehicle is a straight-line driving state, obtaining the The three-dimensional coordinates output by the vehicle's three-axis acceleration sensor; based on the M three-dimensional coordinates output by the three-axis acceleration sensor in the first period, a first straight line indicating the vehicle's straight driving is generated; based on the N three-dimensional coordinates output by the three-axis acceleration sensor in the second period coordinates to generate a second straight line indicating that the vehicle is traveling straight; fitting the first straight line and the second straight line to generate a modified third straight line indicating that the vehicle is traveling straight. Embodiments of the present invention also disclose a corresponding device for reducing the probability of learning the wrong vehicle straight line direction. The technical solution provided by the embodiment of the present invention is beneficial to obtain a correct indication of the straight line direction of vehicle driving, thereby improving the accuracy of subsequent vehicle driving state identification.

Description

technical field [0001] The invention relates to the field of vehicle monitoring, in particular to a method and device for reducing the probability of learning a wrong straight-line direction of a vehicle. Background technique [0002] With the development of society and the improvement of people's living standards, more and more people own cars, and the increase in the number of cars also leads to an increase in traffic accidents. In the process of handling traffic accidents, the driving state when an accident occurs is a very An important analysis method, which can be used to analyze whether the driving behavior is illegal, and the driving state includes rapid acceleration, rapid deceleration, sharp turn, etc. On the other hand, with the development of the Internet of Vehicles industry, vehicle-mounted terminals based on vehicle OBD (On-Board Diagnostics) interfaces are increasingly used in vehicle UBI (Usage Based Insurance). Its main function is to collect vehicle conditi...

AI Technical Summary

Problems solved by technology

[0003] In the technology of using three-axis acceleration for sharp turn detection, it is very important to learn the correct fitting line used to indicate that the vehicle is driving straight, otherwise, in the subsequent identification process of the vehicle's driving state, the driving state of the vehicle will be falsely reported. Phenomenon, in the prior art, the fitting straight line learned for the first time is generally directly used to represent the straight-line driving direction of the vehicle. There will be errors in the straight line, resulting in the inability to correctly indicate the straight line direction of the vehicle, which will lead to a low accuracy rate of subsequent vehicle driving state recognition

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