Distance measuring device and method based on sound wave communication

A distance measuring device, a technology of sound wave communication, which is applied in the direction of measuring device, sound wave re-radiation, radio wave measuring system, etc., can solve the problem that it cannot be used to measure the distance between two determined points

Inactive Publication Date: 2015-04-01
NINGBO UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But this way is only effective when measuring the distance between the device and the obstacle, it cannot be used to measure the distance between two certain points

Method used

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  • Distance measuring device and method based on sound wave communication
  • Distance measuring device and method based on sound wave communication
  • Distance measuring device and method based on sound wave communication

Examples

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Embodiment

[0024] Example: such as figure 1 As shown, a distance measuring device based on acoustic wave communication includes a first distance measuring circuit for setting on a moving point and a second distance measuring circuit for setting on a reference point, the first distance measuring circuit includes a first The power module, the first controller 1, the first ultrasonic transmitting circuit 2 and the first ultrasonic receiving circuit 3, the first ultrasonic transmitting circuit 2 and the first ultrasonic receiving circuit 3 are respectively connected with the first controller 1, and the first power module is used In order to provide the working voltage of the first ranging circuit, the second ranging circuit includes a second power supply module, a second controller 4, a second ultrasonic transmitting circuit 5 and a second ultrasonic receiving circuit 6, the second ultrasonic transmitting circuit 5 and the second ultrasonic receiving circuit 6 The two ultrasonic receiving ci...

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Abstract

The invention discloses a distance measuring device and method based on sound wave communication. A first controller drives a first ultrasonic transmitting circuit to send a distance measuring request signal, the first controller records the transmitting moment as T1, a second ultrasonic receiving circuit receives the distance measuring request signal, a second controller records the receiving moment as T2, the second controller drives a second ultrasonic transmitting circuit to send a distance measuring answering signal, and records the transmitting moment as T3, a first ultrasonic receiving circuit receives the distance measuring answering signal, the first controller records the receiving moment as T4, the first controller and the second controller calculate respectively according to the time difference (t1=(T4-T1)) for sending the distance measuring request signal and receiving the answering signal and according to the ultrasonic transmission speed v and the time difference (t1=(T3-T2)) for receiving distance measuring request signal and sending the answering signal, and the distance (D=(t1-t2)v / 2) between a moving point and a reference point is obtained through calculation. The distance measuring device and the distance measuring method have the advantage that the distance measurement between two determined points is realized.

Description

technical field [0001] The present invention relates to a distance measuring device and method, in particular to a distance measuring device and method based on acoustic wave communication. Background technique [0002] The traditional acoustic wave ranging method usually sends a set of ultrasonic signals by a device and records the sending time of the ultrasonic signals. The ultrasonic signals are reflected back by obstacles. The device detects the reflected ultrasonic signals and records the return time of the ultrasonic signals, and then The distance between the device and the obstacle is calculated from the round-trip time difference between the sending time of the ultrasonic signal and the return time of the ultrasonic signal and the transmission speed of the ultrasonic signal. However, this method is only effective when measuring the distance between the device and an obstacle, and cannot be used to measure the distance between two defined points. Contents of the inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S15/08
CPCG01S15/08G01S7/523G01S7/534
Inventor 蓝艇谢建军史旭华李潇邬杨波刘慰
Owner NINGBO UNIV
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