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Ultrasonic radar distance calibration system and method

A calibration system, ultrasonic technology, applied in the field of sensors, can solve the problems of low calibration accuracy, achieve the effect of overcoming the large size requirements of the site, improving detection accuracy and reliability, and eliminating the effects of environmental factors

Pending Publication Date: 2021-08-03
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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Problems solved by technology

[0005] The main purpose of the present invention is to provide a system and method for ultrasonic radar distance calibration, which aims to solve the technical problem of low calibration accuracy in the prior art due to the influence of the environment

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  • Ultrasonic radar distance calibration system and method
  • Ultrasonic radar distance calibration system and method
  • Ultrasonic radar distance calibration system and method

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Embodiment Construction

[0057] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0058] refer to figure 1 , figure 1 It is a structural block diagram of the first embodiment of the ultrasonic radar distance calibration system of the present invention.

[0059] The ultrasonic radar distance calibration system includes: a radar module 10, a control module 30 and a detection module 20 connected in sequence;

[0060] In this embodiment, the radar module 10 is configured to emit a first ultrasonic signal.

[0061] It should be noted that this embodiment is used for the link of ultrasonic radar distance calibration. Before the ultrasonic radar is installed on the vehicle, multiple ultrasonic radars to be installed on the vehicle are calibrated through this embodiment, such as figure 2 Since the distance between the ultrasonic radar probe to be calibrated in the radar module 10 and the wave-emitting ...

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Abstract

The invention belongs to the technical field of sensors, and discloses an ultrasonic radar distance calibration system and method. The system comprises a radar module, a detection module and a control module; the radar moduletransmits a first ultrasonic signal; the detection module converts the first ultrasonic signal into a trigger signal and sends the trigger signal to the control module; the control module is used for timing and generating a wave transmitting signal when preset flight time is reached, and the detection module is used for transmitting a second ultrasonic signal when receiving the wave transmitting signal; the radar module receives the second ultrasonic signal transmitted by the detection module and calculates a test distance according to the second ultrasonic signal; and the control module obtains a calibration result according to the test distance and a preset simulation test distance. Through the above mode, the automatic calibration of an ultrasonic radar is realized, and the ultrasonic radar is calibrated through the simulated ultrasonic flight time generated by the control module, so that the influence of environmental factors in the detection process is eliminated, and the detection precision and reliability in the ultrasonic radar distance calibration process are improved.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to an ultrasonic radar distance calibration system and method. Background technique [0002] With the continuous growth of my country's car ownership, the advanced driving assistance function of smart cars has gradually become a standard configuration. Ultrasonic radar is an important sensor for the advanced assisted driving function of smart cars, and thus has high requirements for the accuracy of ultrasonic radar. [0003] Therefore, in order to assist the function in driving, it is necessary to calibrate the distance measurement of the ultrasonic radar after the vehicle is offline to ensure the accuracy of the distance measurement of the ultrasonic radar. The traditional ultrasonic radar distance calibration process is to calibrate multiple ultrasonic radars one by one after installing the ultrasonic radar on the vehicle. However, in this method, the ultrasonic radar is easy to...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/52
CPCG01S7/52004G01S7/52006
Inventor 宋绍文姜家如罗传东
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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