Rear car approaching rate analysis system

Abstract

The invention relates to a rear car approaching rate analysis system, which comprises a car door mirror, a mirror support, frame-by-frame analysis equipment and on-site early warning equipment, wherein the car door mirror is arranged on a car door of a car, is provided with a wide-angle mirror body and is used for reflecting a rear scene of the side of the car; the mirror support is used for fixing the car door mirror on the car door of the car, and the shape of the mirror support is designed to restrain an eddy current generated on the side of the moving car; the frame-by-frame analysis equipment is used for determining a car object with the fastest change rate of a depth of field value from a deep direction to a shallow direction based on acquisition results of the depth of field valuesof the car objects in a plurality of continuous high-value analysis areas on a time axis by car capture equipment, and taking the change rate of the depth of field value of the determined car object from the deep direction to the shallow direction as a to-be-analyzed rate; and the on-site early warning equipment is connected to the frame-by-frame analysis equipment and is used for sending a rapidapproaching signal when the to-be-analyzed rate is over-limited, and otherwise sending a normal approaching signal. Through the system, a situation that a driver of the car is distracted is prevented.

Description

technical field [0001] The invention relates to the field of vehicle monitoring, in particular to a rear vehicle approach rate analysis system. Background technique [0002] The rearview mirror is a tool for the driver to directly obtain external information such as the rear, side and bottom of the car while sitting in the cab seat. For the convenience of the driver's operation, to prevent the occurrence of driving safety accidents, and to ensure personal safety, all countries have stipulated that rearview mirrors must be installed on cars, and all rearview mirrors must be able to adjust their direction. [0003] The rearview mirror outside adjustment method is to adjust the angle of view by directly adjusting the position of the mirror frame or mirror surface by hand in the parking state. This method is time-consuming and laborious, and it is difficult to complete it conveniently at one time. It is very inconvenient to adjust in situations such as driving and rainy days by...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem that the driver cannot accurately understand the approaching state of the rear vehicle in the prior art, the present invention provides an analysis system for the approaching speed of the rear vehicle, which separately analyzes the cyan component, magenta component, yellow component and black component of the pixels. To analyze the change situation, to output the most prominent areas of each component change; it is especially critical to introduce vehicle capture equipment and frame-by-frame analysis equipment to analyze the vehicle object with the fastest approaching speed in the rear, so that when its approaching speed exceeds the limit, Send out a fast approaching signal to realize an effective reminder to the driver

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