Lane judgment method based on latitude and longitude acquisition points and positioning device thereof

Abstract

The invention discloses a lane judgment method based on latitude and longitude acquisition points. Multiple reference points are set on a target road, and a principal coordinate matrix of the target rod and a sub-coordinate matrix of each lane are acquired; the lane in which a target vehicle is positioned is determined, the coordinate values of all the reference vehicles in the adjacent lanes of the lane in which the target vehicle is positioned are collected, and actual distance between the target vehicle and the reference vehicles is acquired through matrix calculation; and whether the target vehicle can change lane is judged by comparing the actual distance and safe distance. Meanwhile, the invention also discloses a positioning device applied to the method. Advantages of the method are that the method has higher reliability in comparison with that of an independent GPS and has better road fault tolerance in comparison with that of radar so that degree of safety is higher, data feedback is more rapid, and whether the vehicle can change lane is prejudged through establishment of a vehicle latitude and longitude matrix coordinate system and differential correction of precision of submitted distance calculation.

Description

technical field [0001] The invention relates to a positioning method and a positioning device, in particular to a method and a positioning device for determining the position of a lane on which a vehicle is traveling. Background technique [0002] With the development of the economy, the ownership of automobiles is increasing rapidly. At the same time, automobile accidents also occur frequently, and automobile rear-end collision is one of the main traffic accidents. [0003] When it comes to car rear-end collision accidents, on complex roads, the main cause is poor control of the distance between vehicles, or because the car in front suddenly changes lanes and the car behind does not have time to slow down. Therefore, it is particularly important to judge the position of vehicles in a certain road. If the situation of vehicles in adjacent lanes can be determined in advance, preparations can be made for lane changes in advance and the possibility of rear-end collisions can be...

AI Technical Summary

Problems solved by technology

[0005] For radar measurement, it mainly uses radar to perform wide-range ranging, so as to provide drivers with a certain driving reference, but it is limited by road conditions, and some guardrails and other objects on the driveway can easily affect the normal operation of the radar. Work;

[0006] For GPS positioning, as we all know, GPS has high requirements for signal. In some road sections where GPS signal is not very good, GPS positioning will have a large positioning offset, and the reliability of data is very low.

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