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Distance measuring method, equipment, device and storage medium

A distance measurement and distance technology, applied in the field of mobile terminals

Active Publication Date: 2018-12-18
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present application provides a distance measurement method, device, equipment and storage medium, which can solve the problem of distance between obstacles and the touch screen when the front panel of a mobile terminal such as a smart phone or a tablet computer with a touch screen is not provided with an infrared distance sensor. The problem of measuring the distance between

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  • Distance measuring method, equipment, device and storage medium
  • Distance measuring method, equipment, device and storage medium
  • Distance measuring method, equipment, device and storage medium

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Embodiment Construction

[0090] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0091] figure 1 It is a block diagram of a terminal provided in an exemplary embodiment of the present application. The terminal may be a smart phone or a tablet computer, and the terminal includes: a sound wave generator 120 , a sound wave receiver 140 , a processor 160 and a memory 180 .

[0092] The sound wave generator 120 is configured to output sound signals. Schematically, the composition of the acoustic wave generator 120 refers to figure 2 The sound wave generator 120 includes a signal exciter 11, a digital-to-analog converter (Digital Analog Converter, DAC) 12 and a signal transmitter 13, and the signal transmitter 13 includes but not limited to at least one of a horn, an earpiece and an ultrasonic transmitter. The ...

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Abstract

The application discloses a distance measuring method, an equipment, a device and a storage medium, relates to the field of mobile terminals. The distance measuring method comprises the following steps that: an acoustic wave generator transmits a band pass noise signal to a predetermined direction; an acoustic wave receiver receives a mixed signal, extracts a feature of the mixed signal to obtaina spatial feature quantity, and finally performs acoustic wave interference analysis according to the spatial feature quantity to obtain an obstacle distance in the predetermined direction. Accordingto the distance measuring method, the equipment, the device and the storage medium, after acoustic waves are transmitted through acoustic wave devices such as microphones and earphones, distance measurement between a terminal and the obstacle is realized by utilizing the acoustic wave interference analysis, and the distance between the terminal and the obstacle can also be measured, when a front panel of the terminal is not provided with a distance sensor.

Description

technical field [0001] The embodiments of the present application relate to the field of mobile terminals, and in particular to a distance measuring method, device, equipment and storage medium. Background technique [0002] Mobile terminals such as smart phones and tablet computers are provided with touch screens. Taking a smart phone as an example, when the user's face is close to the touch screen, the touch screen will automatically turn off; when the user's face is away from the touch screen, the touch screen will automatically light up. [0003] In the related art, an infrared distance sensor is arranged on the top of the front panel of the smart phone, and the infrared distance sensor is used to transmit a first infrared signal to the front of the front panel of the smart phone, and then receive a second infrared signal reflected back when encountering the user's face, According to the amplitude variation between the first infrared signal and the second infrared signa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S15/08
CPCG01S15/08
Inventor 史润宇
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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