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Triangle centering algorithm based locating method and device

A positioning method and technology of a positioning device, which are applied in the field of positioning, can solve the problem of low accuracy of base station-assisted positioning, and achieve the effects of wide use, high positioning speed and low cost.

Inactive Publication Date: 2018-02-23
南京市睿云享智能科技有限公司
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AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a positioning method and device based on the triangular centering algorithm to solve the technical problem of low base station auxiliary positioning accuracy in the prior art

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  • Triangle centering algorithm based locating method and device
  • Triangle centering algorithm based locating method and device
  • Triangle centering algorithm based locating method and device

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no. 1 example

[0039] As the first embodiment of the present invention, a positioning method based on a triangle centering algorithm is proposed, such as figure 1 As shown, it includes: Step S1: Calculate the distance between the locator and the three base stations. That is, at first calculate the distances S1, S2, and S3 between the current position of the locator and the three nearest base stations: the first base station, the second base station, and the third base station; in this embodiment, the following formula is used to calculate the locator Distance from base station:

[0040] s=10 ((ABS(RSSI)-W) / (10×n)) …………(1)

[0041] Among them, s is the distance between the locator and the base station, ABS (RSSI) is the absolute value of the received signal strength, W is the absolute value of the power consumed by the locator sending signals to the base station per meter, and n is the loss coefficient on the way. Usually the assignment range of W is 45-49dBm (decibel milliwatt); the assig...

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Abstract

The invention discloses a triangle centering algorithm based locating method and device, and relates to the field of locating methods. The triangle centering algorithm based locating method comprisesthe steps of calculating distances between a locator and three base stations; obtaining base station coordinate information; calculating distances among the three base stations; calculating directionvalues of the locator relative to the three base stations; verifying the direction value of the locator relative to the three base stations to obtain final positioning information. By adopting the technical scheme, as the three base stations and the triangle centering algorithm are adopted, the outdoor positioning error can be reduced to within 50 m in an outdoor environment without any GPS signal; meanwhile, the triangle centering algorithm based locating method and device have the locating speed faster than that of the former base station assistant location technique, have lower cost and canbe widely used.

Description

technical field [0001] The invention relates to the field of positioning methods, in particular to a positioning method and device based on a triangle centering algorithm. Background technique [0002] Indoor positioning can be assisted by WIFI equipment, while outdoor positioning is usually achieved by GPS, but GPS positioning is easily blocked and causes signal loss, and the reliability is not strong. Therefore, a system based on communication base station auxiliary positioning appears, but this system The accuracy has not been high, affecting users. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a positioning method and device based on a triangular centering algorithm, so as to solve the technical problem of low base station assisted positioning accuracy in the prior art. [0004] In order to solve the problems of the technologies described above, the technical solution of the present invention is: [0005]...

Claims

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Application Information

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IPC IPC(8): H04W64/00G01S5/14
Inventor 潘祖方
Owner 南京市睿云享智能科技有限公司
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