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Distance measuring method and distance measuring device

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

Inactive Publication Date: 2018-08-28
TP-LINK
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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

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  • Distance measuring method and distance measuring device
  • Distance measuring method and distance measuring device

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Embodiment Construction

[0066] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0067] combine figure 1 , Image 6 with Figure 7 As shown, a distance measuring method in a preferred embodiment of the present invention includes the following steps:

[0068] 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 position A1 through the camera, and the captured The image of the point to be measured at position A1 is located at ...

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Abstract

The invention relates to the technical field of distance measurement and discloses a distance measuring method and a distance measuring device. The distance measuring method comprises the following steps: obtaining a first state angle when a terminal is positioned in the first position B point and a second state angle when the terminal is positioned in the second position C point through detection, and calculating the rotating angle beta1 of the terminal changed from the first state angle to the second state angle according to the first state angle and the second state angle; calculating an included angle alpha 1 between a line segment A1B and a line segment BC according to first track information and first state angle information; obtaining distance x from the first position B point to the second position C point; and finally calculating distance LA1B between a to-be-measured point positioned in the position A1 and the first position B point through alpha 1, beta 1 and x to avoid theproblem of low measuring precision caused by the fact that the distance of a to-be-tested object is calculated through image distance, so that the terminal measuring distance precision is improved.

Description

technical field [0001] The invention relates to the technical field of distance measurement, in particular to a distance measurement method and a distance measurement 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 science and technology, more and more terminals also have the function of distance measurement. When the existing terminal measures the distance, it generally converts the object distance (that is, the distance between the terminal and the object to be measured) through the mathematical relationship between the image distance when the camera focuses and the focal length of the lens, but the accuracy of this distance measurement method is relatively high. Low, especially when the object to be measured is far away from the camera, the change of the image distance is very insignificant, resulting in low measurement accuracy for...

Claims

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Application Information

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IPC IPC(8): G01C3/22
CPCG01C3/22
Inventor 梁晓东
Owner TP-LINK
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