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Outdoor auxiliary positioning method, system and device based on optical tag

A technology of auxiliary positioning system and positioning equipment, which is applied in the direction of location information-based services, electrical components, wireless communication, etc. It can solve the problems of inability to perform positioning and difficult positioning, and achieves the avoidance of weak or disturbed positioning signals and simple operation , high precision effect

Active Publication Date: 2018-02-23
SHAANXI WHYHOW INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] It is difficult to locate when the outdoor satellite positioning signal is weak or interfered
Or in the case of high positioning accuracy requirements, the existing satellite signal positioning cannot meet the requirements. In order to solve the problem that positioning cannot be performed in this case, it is necessary to provide an outdoor auxiliary positioning method, which has strong anti-interference ability , and the positioning accuracy is high

Method used

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  • Outdoor auxiliary positioning method, system and device based on optical tag
  • Outdoor auxiliary positioning method, system and device based on optical tag
  • Outdoor auxiliary positioning method, system and device based on optical tag

Examples

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Effect test

Embodiment 1

[0055] The specific process of the outdoor auxiliary positioning method of the present invention is:

[0056] refer to figure 1 , figure 2 , image 3 and Figure 4 , the outdoor auxiliary positioning method based on light tags of the present invention comprises the following steps:

[0057] 1) Arrange N light tag anchor points within the scope to be located, then set light tags on the light tag anchor points, and then obtain the geographic latitude and longitude information P of each light tag anchor point, where P={(x 1 ,y 1 ),…., (x i ,y i ),..., (x N ,y N)}, where (x i ,y i ) is the latitude and longitude coordinates of the i-th light label anchor point;

[0058] 2) The camera on the device to be positioned 1 collects the image information of the light tags on any two light tag anchor points, and the distance s between the device to be positioned 1 and the first light tag anchor point 4 is obtained 1 and the distance s between the device to be positioned 1 and ...

Embodiment 2

[0070] The operation process of the auxiliary positioning method in the present invention in a specific scenario is as follows:

[0071] An area is subject to strong electromagnetic signal interference and cannot obtain satellite positioning signals. User U needs to perform positioning in this area. Assume that the reference side length of the optical tag is 1 meter, and the focal length of the camera of the mobile terminal held by the user is 30 mm: In order to realize the positioning in this area Positioning, the positioning process is as follows: First, lay out two optical tag anchor point facilities in the area, named A and B respectively, and the serial numbers are 00 and 01, and the coordinates of the two anchor points are determined as: A: (10,10), B :(110,210), upload the data to the positioning server 3 for storage; image acquisition is performed on the anchor point A, and the length of the image forming the anchor point A is 0.3mm, and the light tag data of the anchor...

Embodiment 3

[0073] The operation process of the outdoor auxiliary positioning system in the present invention in a specific scenario is as follows:

[0074] A certain area is subject to strong electromagnetic signal interference and cannot obtain satellite positioning signals. User U needs to perform positioning in this area. Upload to the positioning server for storage; the positioning device collects images of anchor points A and B respectively, and obtains the distance between user U and A and B; user U has advanced the coordinate data of anchor point A and anchor point B from the positioning server After downloading, bring the distance between U and A and B into formula (1) to get the absolute coordinates of user U's location, and it's over.

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Abstract

The present invention discloses an outdoor auxiliary positioning method, system and device based on an optical tag. The method comprises the following steps: arranging at least two optical tag anchorpoints within a to-be-positioned range, wherein each optical tag anchor point displays ID information thereof, and a camera on a to-be-positioned device acquires the ID information displayed by each optical tag anchor point; obtaining geographical position information of each optical tag anchor point by using the ID information; measuring a distance between the to-be-positioned device and each optical tag anchor point by the optical tag; and calculating geographical position information of the to-be-positioned device according to the geographical location information of each optical tag anchorpoint, and the distance between the to-be-positioned device and each optical tag anchor point. The method, system and device provided by the present invention can realize outdoor positioning, and have high anti-interference ability and high positioning accuracy.

Description

technical field [0001] The present invention relates to an outdoor auxiliary positioning method, system and equipment, in particular to an outdoor auxiliary positioning method, system and equipment based on optical tags. Background technique [0002] It is difficult to locate when the outdoor satellite positioning signal is weak or interfered. Or in the case of high positioning accuracy requirements, the existing satellite signal positioning cannot meet the requirements. In order to solve the problem that positioning cannot be performed in this case, it is necessary to provide an outdoor auxiliary positioning method, which has strong anti-interference ability , and the positioning accuracy is high. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide an outdoor auxiliary positioning method, system and equipment based on optical tags. The method, system and equipment can realiz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/02H04W4/021H04W64/00
CPCH04W4/021H04W4/023H04W64/00
Inventor 王晓东方俊李江亮
Owner SHAANXI WHYHOW INFORMATION TECH CO LTD
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