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An Indoor Positioning Method

An indoor positioning and satellite signal technology, applied in positioning, instruments, measuring devices, etc., can solve the problems that cannot meet the accuracy requirements, and the positioning accuracy depends on the size of the coverage area, etc., to achieve the advantages of easy promotion and use, convenient positioning, and strong practicability Effect

Inactive Publication Date: 2019-05-14
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the disadvantage is that the positioning accuracy depends largely on the distribution of base stations and the size of the coverage area. Sometimes the positioning error will exceed one kilometer, which cannot meet the accuracy requirements of actual use.

Method used

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  • An Indoor Positioning Method
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Embodiment 1

[0030] Such as figure 1 As shown, a kind of indoor positioning method of the present invention comprises the following steps:

[0031] Step 1, k satellite signal transmitters are arranged indoors, and satellite signal receivers are arranged at the position of the target point to be positioned indoors; wherein, the value of k is a natural number not less than 4;

[0032] In this embodiment, take k=4;

[0033] Step 2, establish a space Cartesian coordinate system indoors, and measure the coordinates of k satellite signal transmitters in the space Cartesian coordinate system; wherein, the coordinates of the i-th satellite signal transmitter in the space Cartesian coordinate system for (w i0 ,w i1 ,w i2 ), i is a natural number from 1 to k, w i0 is the x-coordinate of the i-th satellite signal transmitter in the space Cartesian coordinate system, w i1 is the y-coordinate of the i-th satellite signal transmitter in the space Cartesian coordinate system, w i2 is the z-coordin...

Embodiment 2

[0054] Such as figure 2 As shown, a kind of indoor positioning method of the present invention comprises the following steps:

[0055] Step 1, k satellite signal transmitters are arranged indoors, and satellite signal receivers are arranged at the position of the target point to be positioned indoors; wherein, the value of k is a natural number not less than 4;

[0056] Step 2, establish a space Cartesian coordinate system indoors, and measure the coordinates of k satellite signal transmitters in the space Cartesian coordinate system; wherein, the coordinates of the i-th satellite signal transmitter in the space Cartesian coordinate system for (w i0 ,w i1 ,w i2 ), i is a natural number from 1 to k, w i0 is the x-coordinate of the i-th satellite signal transmitter in the space Cartesian coordinate system, w i1 is the y-coordinate of the i-th satellite signal transmitter in the space Cartesian coordinate system, w i2 is the z-coordinate of the i-th satellite signal transm...

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Abstract

The invention discloses an indoor positioning method, comprising the steps of: 1. arranging k satellite signal transmitters indoors, and arranging satellite signal receivers at the positions of target points to be positioned indoors; 2. establishing a spatial rectangular coordinate system indoors, And measure the coordinates of k satellite signal transmitters in the space Cartesian coordinate system; three, obtain the pseudo-range observation value between k satellite signal transmitters and indoor target points to be positioned; four, satellite signal receivers k The pseudo-range observation value between the satellite signal transmitter and the indoor target point to be positioned is sent to the data processing device; five, the data processing device is based on the coordinates of the k satellite signal transmitters in the space Cartesian coordinate system, and the k satellite signal transmitters The pseudo-range observation value between the indoor target point to be positioned and the distance between the satellite signal receiver and the k satellite signal transmitters are used to obtain the coordinates of the indoor target point to be positioned in the space Cartesian coordinate system. The invention is convenient to realize and has high positioning precision.

Description

technical field [0001] The invention belongs to the technical field of indoor positioning, and in particular relates to an indoor positioning method. Background technique [0002] With the rapid development of science and technology, Beidou as an outdoor positioning technology has been initially applied in many fields, but because the Beidou signal cannot be completely transmitted indoors, it cannot be directly applied to indoor positioning. technology field. But nowadays, the practicability and necessity of indoor positioning in some specific occasions has become increasingly significant, such as quickly locating the location of goods in an empty indoor warehouse, and positioning obstacles in relatively open indoor spaces such as underground parking lots, etc. , if fast and accurate positioning can be achieved, it will be of great practical significance, so the broad prospects of indoor positioning are gradually being discovered by people. In recent years, some people hav...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W64/00G01S5/10
CPCG01S5/10H04W64/00
Inventor 黄观文李时俊张勤
Owner CHANGAN UNIV