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High precision wireless indoor positioning method and system

An indoor positioning, high-precision technology, applied in the field of positioning, can solve the problems of low positioning accuracy, inability to accurately locate, and small positioning range, and achieve the effect of simple protocol, safe implementation, and simple and convenient application

Inactive Publication Date: 2018-07-20
戚震宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the defects of inability to accurately locate indoors, low positioning accuracy, and small positioning range in the prior art, the present invention provides a high-precision wireless indoor positioning method

Method used

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  • High precision wireless indoor positioning method and system
  • High precision wireless indoor positioning method and system
  • High precision wireless indoor positioning method and system

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Embodiment Construction

[0029] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but are not intended to limit the present invention.

[0030] The high-precision wireless indoor positioning method and system of the present invention calculate the distance between the point to be measured and the fixed point by measuring the time of wireless signal transmission in the air, and measure the spatial position of the point to be measured by the three-point positioning method . In the present invention, the point to be measured is the transmitting end, and the fixed point is the receiving end. The transmitting end is set in a mobile device, such as a mobile phone, and is used to send wireless signals to the receiving end and receive wireless signals returned from the receiving end. The receiving end can be set a...

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Abstract

The invention discloses a high precision wireless indoor positioning method and system. The method comprises the following steps that S1, a transmitting end sends wireless signals according to time T and frequency f; S2, a receiving end receives the wireless signals according to time T<J1> and frequency f<J1>; S3, the received wireless signals are amplified at the receiving end; S4, the receiving end sends the amplified wireless signals according to time T<J2> and frequency f<J2>; S5, the transmitting end receives the returned wireless signals according to time T<AJ> and frequency f<AJ>;and S6, the relative distance and relative speed between the transmitting end and the receiving end are calculated, wherein the relative distance is a product of propagation speed of the wireless signals and propagation time between the transmitting end and the receiving end. According to the method and the system, the indoor positioning precision and an indoor positioning coverage range can be greatly improved.

Description

technical field [0001] The invention belongs to the field of positioning, in particular to a high-precision wireless indoor positioning method and system. Background technique [0002] Outdoor positioning systems are mainly represented by a global positioning (Global Position System, GPS) system and a Beidou positioning system. However, due to various technical limitations, indoor positioning has not yet mature application solutions. Among them, due to the radio frequency used, GPS and Beidou systems cannot receive relevant signals indoors, and their positioning probability indoors is 0. Moreover, various short-range wireless communication technologies such as infrared, Bluetooth, WiFi, mobile communication base stations (2G, 3G, 4G), etc., have higher indoor positioning accuracy than GPS, but their coverage is very small. For example, the positioning information released by Bluetooth through iBeacon can only reach a maximum of 30m, and the coverage of the average position...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/33H04W64/00G01S13/74
CPCG01S13/74H04W64/006
Inventor 戚震宇
Owner 戚震宇
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