Method and apparatus for detecting vehicle distance

Abstract

The invention relates to a method and device for detecting the car distance. After an image taking unit takes the image information, a processor defines an aim area in the said image information, and then analyses whether there are any objects excessively closed to the said car in the said aim area, if yes, the processor emits an alarm to an alarming unit to inform the driver, in order to relieveof analysing the whole image plane of image information and only analyse whether there are any objects excessively closed to the said car in the said aim area. The invention not only reduces the operation time of the processor and burden to increase the detection speed and accuracy, not go so far as to misoperation or excess action.

Description

technical field [0001] The invention relates to a method and device for detecting vehicle distance, in particular to a method and device for detecting the distance between the vehicle and other vehicles when driving. Background technique [0002] Due to the popularity of cars, the density of vehicles on the road is getting higher and higher, so collision accidents are also emerging in an endless stream. For this reason, many manufacturers have developed many designs for car anti-collision, such as measuring the distance between front and rear cars by ultrasonic or infrared rays , or use an image capture device to capture the images of the vehicles in front of and behind the vehicle. After analyzing the images, the distance between the vehicles in front of and behind the vehicle can be known. When the distance between the vehicles in front of and behind the vehicle is too close, a The warning device warns the driver. [0003] Generally, the method of using an image capture d...

AI Technical Summary

Problems solved by technology

[0005] 1. Since the analysis is generally performed on the entire screen of each image data, it is necessary to identify obstacles and distinguish obstacles from non-obstacles first, so as to avoid false actions of warning devices, but identifying obstacles is often the most time-consuming part. ring

[0006] 2. Since the speed of the vehicle is different, and the time to approach the obstacle will be affected by the speed of the vehicle, if only judging whether the distance between the obstacle and the vehicle is less than the critical setting value, it may cause the driver to react too late or Warning device excessive action

[0008] It can be seen that the above-mentioned existing method and device for detecting vehicle distance obviously still have inconvenience and defects in structure and use, and need to be further improved urgently.

In order to solve the above-mentioned problems, the relevant manufacturers have tried their best to find a solution, but no suitable design has been developed for a long time, and the general products do not have a suitable structure to solve the above-mentioned problems. This is obviously related. The problem that the industry is eager to solve

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