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Control method and device for ultrasonic ranging system

A technology of ranging system and control method, applied in radio wave measuring system, measuring device, sound wave re-radiation and other directions, can solve the problems affecting the accuracy of distance measurement, error, affecting the accuracy of ultrasonic ranging, etc. Measurement accuracy, the effect of reducing errors

Active Publication Date: 2020-10-13
NOLO CO LTD
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Problems solved by technology

[0005] However, due to the reflection characteristics of ultrasonic waves, the reflected ultrasonic signals may be received by some or all of the ultrasonic receivers installed on the equipment to be positioned, thus affecting the accuracy of ultrasonic ranging
For example, if figure 1 As shown, in a small space, due to the reflection characteristics of ultrasonic waves, when encountering obstacles such as walls or objects, the reflected ultrasonic signals may be received by multiple ultrasonic receivers installed on the equipment to be positioned. , the device to be positioned uses ultrasonic waves to measure distance, and there will be errors, which will affect the accuracy of distance measurement

Method used

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  • Control method and device for ultrasonic ranging system
  • Control method and device for ultrasonic ranging system
  • Control method and device for ultrasonic ranging system

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Embodiment Construction

[0043] The embodiments of the present application will be described in detail below in conjunction with the accompanying drawings. It should be understood that the embodiments described below are only used to illustrate and explain the present application, and are not intended to limit the present application.

[0044]It should be noted that, if there is no conflict, the embodiments of the present application and various features in the embodiments can be combined with each other, and all are within the protection scope of the present application. In addition, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0045] figure 2 It is a schematic diagram of a control method for an ultrasonic ranging system provided in an embodiment of the present application. In this embodiment, the ultrasonic ranging system may include: an ultrasonic transmitting device an...

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Abstract

The invention discloses a control method and device for an ultrasonic ranging system. The control method includes at least one of the following steps: controlling signal intensity of an ultrasonic signal emitted by an ultrasonic transmitting device according to a target measuring range; determining the intensity threshold of an ultrasonic receiving device for receiving the ultrasonic signal and controlling the ultrasonic receiving device to filter out the received ultrasonic signals with the signal intensity less than the intensity threshold. Therefore, the error of the ultrasonic ranging is reduced, and the accuracy of range measurement is improved.

Description

technical field [0001] The present application relates to but not limited to ultrasonic technology, in particular to a control method and device for an ultrasonic ranging system. Background technique [0002] Ultrasound is a part of the sound wave, which is inaudible to the human ear and has a frequency higher than 20KHZ (kilohertz); the propagation of ultrasonic waves has the characteristics of strong directivity, slow energy consumption, and long propagation distance in the medium, so ultrasonic waves are often used in distance measurement. [0003] An implementation of ultrasonic ranging includes an ultrasonic transmitter and an ultrasonic receiver, and the difference between the time when the ultrasonic receiver receives the ultrasonic signal and the time when the ultrasonic transmitter sends the ultrasonic signal is multiplied by the propagation speed of the ultrasonic signal to obtain Distance between ultrasonic transmitter and ultrasonic receiver. [0004] The metho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S15/08G01S7/52
CPCG01S7/52001G01S15/08
Inventor 张益铭张佳宁张道宁
Owner NOLO CO LTD
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