Rear car approaching rate analysis system

A rear vehicle and analysis system technology, which is applied in the field of rear vehicle approach rate analysis systems, and can solve the problem that drivers cannot accurately understand the approach state of rear vehicles.

Active Publication Date: 2019-07-12
深圳昌恩智能股份有限公司
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  • Claims
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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

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  • Rear car approaching rate analysis system
  • Rear car approaching rate analysis system

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Embodiment Construction

[0015] Embodiments of the analysis system for approaching speed of rear vehicles of the present invention will be described in detail below with reference to the accompanying drawings.

[0016] Rearview mirrors have a horizon problem, which refers to the range that the mirror surface can reflect. The industry has the formulation of the three elements of the horizon, that is, the distance between the driver's eyes and the rearview mirror; the size of the rearview mirror and the radius of curvature of the rearview mirror. There is a certain relationship between these three elements. When the distance and size of the rearview mirror are the same, the smaller the radius of curvature of the mirror surface, the larger the horizon reflected by the mirror surface. When the curvature radii of the mirror surfaces are the same, the larger the size of the mirror surface, the larger the field of view reflected by the mirror surface.

[0017] At the same time, the rearview mirror also has ...

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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...

Claims

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Application Information

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IPC IPC(8): G01P3/36G06T5/40G06T5/00G06T7/90
CPCG01P3/36G06T5/002G06T5/40G06T2207/30248G06T7/90
Inventor 梁惠兰赵晨
Owner 深圳昌恩智能股份有限公司
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