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Ranging method and ranging device

A distance measuring method and technology of a distance measuring device, which are applied in the field of distance measurement and can solve the problems of low measurement accuracy and the like

Inactive Publication Date: 2018-08-31
TP-LINK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a distance measuring method and a distance measuring device, which can solve the existing technical problem of low measurement accuracy in calculating the distance of the object to be measured by the terminal through the image distance, thereby improving the accuracy of the distance measurement of the terminal

Method used

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Embodiment Construction

[0062] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0063] combine figure 1 , Image 6 and Figure 7 As shown, a distance measurement method according to a preferred embodiment of the present invention includes the following steps:

[0064] S1, detect and obtain the first state angle when the terminal is at the first position B; under the first state angle, the terminal can capture the point to be measured at the position A1 through the camera, and the captured point is at the positi...

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Abstract

The invention relates to the technical field of ranging, and discloses a ranging method and a ranging device, which comprises the following steps of: calculating the angle Alpha1 between the line A1Band the line BC by detecting a first state angle and a second state angle when the terminal is at the first position B, calculating the angle theta1 between the line A1C and the line BC by detecting athird state angle and a fourth state angle when the terminal is in the second position C, obtaining a distance x from the first position B to the second position C, finally, the distance LA1B betweenthe point to be measured at the position A1 and the first position B is calculated by alpha1, theta1 and x so as to avoid the problem of low measurement accuracy caused by calculating the distance ofthe object to be measured by the image distance, thereby improving the accuracy of the measurement distance of the terminal.

Description

technical field [0001] The present invention relates to the technical field of ranging, in particular to a ranging method and a ranging device. Background technique [0002] At present, terminals such as mobile phones or mobile tablets usually have functions such as shooting and surfing the Internet. With the development of technology, more and more terminals also have the function of ranging. When the existing terminal measures the distance, the object distance (that is, the distance between the terminal and the object to be measured) is generally converted by the mathematical relationship between the image distance when the camera is focused and the focal length of the lens, but the accuracy of this distance measurement method is compared. Low, especially when the object to be measured is far away from the camera, the change of the image distance is extremely insignificant, resulting in a low measurement accuracy for calculating the distance of the object to be measured by...

Claims

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Application Information

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IPC IPC(8): G01C3/18
CPCG01C3/18
Inventor 梁晓东
Owner TP-LINK
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