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Distance detection method of car reversing radar, and device thereof

A technology of reversing radar and distance detection, applied in measurement devices, radio wave measurement systems, reflection/re-radiation of radio waves, etc., can solve the problems of low detection efficiency and low detection accuracy, achieve precise control, save manpower monitoring, Achieve the effect of automated testing

Inactive Publication Date: 2018-02-23
HUIZHOU DESAY SV AUTOMOTIVE
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  • Abstract
  • Description
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Problems solved by technology

[0004] The purpose of the present invention is to provide a distance detection method and device for reversing radar. The technical solution provided by the present invention solves the technical problems of low detection efficiency and low detection accuracy caused by manual measurement for existing distance detection.

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  • Distance detection method of car reversing radar, and device thereof
  • Distance detection method of car reversing radar, and device thereof

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Embodiment Construction

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0017] At present, the car audio system compatible with the distance display and alarm function of the reversing radar needs to detect the consistency between the host identification display distance and the actual distance. The existing reversing radar distance detection process mostly uses manual detection, which has low detection efficiency and poor detection accuracy.

[0018] In order to solve the technical problem of low efficiency of the existing rever...

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Abstract

The invention relates to a distance detection method of a car reversing radar, and a device thereof, which belong to the technical field of car reversing radars. The detection method comprises the steps of moving an obstacle to different positions behind a vehicle to be detected, and obtaining control signal data of a stepping motor; calculating the actual distance value between the obstacle and the vehicle to be detected based on the control signal data; detecting whether the car reversing radar launches the car reversing function or not; obtaining the distance value between the obstacle andthe vehicle to be detected by the car reversing radar if the car reversing radar launches the car reversing function; calculating the absolute value of difference between the obtained distance value and the actual distance value; setting a comparison threshold value, and comparing the absolute value with the comparison threshold value, and stopping the alarm if the absolute value is larger than the comparison threshold value, and conducting on-line calibration on the distance value obtained by the car reversing radar. The invention is advantageous in that the technical problem of the conventional distance detection adopting manual measurement that detection efficiency is low and detection precision is low can be resolved.

Description

technical field [0001] The invention relates to the technical field of reversing radar, in particular to a method and a device for detecting the distance of a reversing radar. Background technique [0002] Reversing radar, that is, "reversing anti-collision radar", also known as "parking assistance device", is mainly composed of ultrasonic sensors, controllers and displays. Car audio refers to the audio system installed in the car. The reason why the system can be called a sound system is that the most basic condition is to have the function of playing back sound. Its anti-interference technology uses choke coils to filter the interference of the power line between the power supply and the audio system to reduce external noise interference. [0003] At present, the car audio system compatible with the distance display and alarm function of the reversing radar needs to detect the consistency between the distance displayed by the host and the actual distance. Contents of t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/93G01S13/08
CPCG01S13/08G01S13/931
Inventor 刘昶李日升
Owner HUIZHOU DESAY SV AUTOMOTIVE
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