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a positioning method

A positioning method and a technology for positioning areas, which are applied in the field of signal processing and can solve problems such as poor quality of fingerprint databases

Active Publication Date: 2019-12-13
THE CHINESE UNIV OF HONG KONG SHENZHEN +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, generally only a small number of RSS fingerprints of routes can be obtained in this way, and the quality of the fingerprint database is usually poor

Method used

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Embodiment Construction

[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0040] In order to make the technical solution of the present invention easier to understand, first, a brief introduction is made to the RSS positioning principle on which the technical solution of the present invention is implemented.

[0041] 1. System model and algorithm principle

[0042] Assume that the area to be located where the object to be located (or the object to be located, or the positioning target) is located is as follows figure 1 shown in figure 1In , in order to locate the target in the area to be located, a grid of interest can be defined in advance. There are multiple access points AP (such as WiFi hotspots) in the grid, and the intersection of the grid is the reference point. Among them, the network ...

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Abstract

The invention discloses a positioning method. The method comprises the following steps: determining an area to be positioned, and acquiring signal strength data of a signal transmitting device received by a receiving point located in the area to be positioned to obtain a received signal strength data set of the area to be positioned, wherein the receiving point comprises a sampling point and a reference point; acquiring signal strength data of the signal transmitting device received by an object to be positioned to obtain the received signal strength data of the object to be positioned; and comparing the received signal strength data of the object to be positioned with the received signal strength data set of the area to be positioned to obtain location information of the object to be positioned. By adoption of the above technical scheme, high-precision indoor positioning can be realized, since a cellular mobile network can also implement positioning based on RSS, the scheme is applicable to all positioning systems using RSS as position-related measurement values.

Description

technical field [0001] The invention relates to the field of signal processing, in particular to a positioning method. Background technique [0002] With the introduction of the concept of "Internet +" and the maturity of Internet of Things technology, location-based services are playing an increasingly important role in various aspects such as logistics transportation, production, first aid, positioning, cruise, and query. Many location services are highly dependent on the development of positioning technology, especially indoor positioning technology. Early technologies applied to indoor positioning include Bluetooth, Infrared and Ultra Wideband (UWB). However, using this type of technology to achieve indoor high-precision positioning requires a lot of hardware support, and the signal transmission process is easily interfered by other factors. In recent years, the widespread deployment of Wi-Fi access points has enabled Wi-Fi signals to cover almost any location in each ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/021H04W4/029H04W4/33H04W4/80H04W64/00
CPCH04W4/021H04W4/029H04W4/33H04W4/80H04W64/003
Inventor 尹峰陆彦辉崔曙光罗智泉
Owner THE CHINESE UNIV OF HONG KONG SHENZHEN
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