Automatic calibration method and device for installation angle of collision early warning radar

Abstract

The invention discloses an automatic calibration method and device for the installation angle of a collision early warning radar. The method specifically comprises the steps that radar data fed back by an on-the-way target detected by an installed radar and traveling tracks based on different data sources are collected in the traveling process of a vehicle, first calibration is conducted on the installation position of the radar through the two sets of traveling tracks with the different sources, and second calibration completed based on the radar detection data is put forward; when the collected radar detection data meet the quantity requirement, a second calibration result is stored; and if the radar detection data quantity does not meet the precision requirement due to the fact that thedata quality fed back by the on-the-way target is poor or the target quantity is insufficient, the second calibration can be omitted, and a first calibration result is stored. Thus, according to thecalibration mode, a specific space and a specific station do not need to be set, the calibration mode does not depend on specific auxiliary facilities, auxiliary tools and other conditions, the calibration mode can be suitable for various manufacturer vehicle types, and therefore the radar position calibration operation can be completed efficiently, economically and conveniently.

Description

technical field

[0001] The invention relates to the field of vehicle electronic equipment, in particular to a method and device for automatically calibrating the installation angle of a collision warning radar. Background technique

[0002] With the continuous development of society, the number of car ownership is also increasing. At the same time, the surge in accidents brought about by the increase in vehicles has seriously endangered people's lives and property safety. In recent years, driving safety has been paid more and more attention, and intelligent driving assistance systems have become the main selling point of major automakers. As an important part of the intelligent driving assistance system, the millimeter wave radar is one of the main sensors of the vehicle environment perception function. It detects the surrounding area by emitting electromagnetic waves, for example, it can detect the distance, relative speed and orientation of the target in the front area, a...

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