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Offline positioning method based on the wireless hot spot

A technology of wireless hotspots and positioning methods, applied in the computer field, can solve problems such as increasing network overhead and increasing the burden on servers, and achieve the effect of continuous and realistic data, efficient and real-time positioning algorithms and positioning strategies

Inactive Publication Date: 2017-05-31
王洋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] (3) Although the WiFi signal is collected on the user side, the positioning calculation is performed on the server side, which not only increases the burden on the server, but also increases the network overhead

Method used

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  • Offline positioning method based on the wireless hot spot
  • Offline positioning method based on the wireless hot spot
  • Offline positioning method based on the wireless hot spot

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Embodiment Construction

[0064] The technical scheme of the present invention provides a positioning method based on a wireless hotspot (AP). Specifically, the positioning method may be based on a multi-point WiFi-AP, and realize offline indoor positioning. The principle of the technical solution of the present invention is to use the terminal to scan and collect the signal strength of a plurality of known surrounding APs, and calculate the terminal's own position according to the signal strength information and the AP position information. Among them, the positioning method may include pre-loading the map in the early stage to realize offline positioning of the terminal, scanning and collecting AP signal strength data in real time, preprocessing the data in real time to filter out noise, filtering the data to smooth the data, secondary processing and filtering of the data, and The multi-point AP joint positioning is realized by using the processed signal strength and the location information of the AP...

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Abstract

The invention provides an offline positioning method based on the wireless hot spot, which comprises the following steps:scanning the wireless hot spot around the device and getting the hot spot parameter, at least the hot spot position and the positioning signal strength are obtained based on the hot spot parameter; if the number of the wireless hot spot around the device is 1, the hot spot position of the output is the position of the device; if the number if the wireless hot spot is 2, the device location is mapped to the line between the corresponding position of the two wireless hot spot, and the mapping position is taken as the position of the device; if the number of the wireless hot spot around the device is greater than or equal to 3, the device position is mapped to the connection between the corresponding position of the two wireless hot spot and the centroid of the corresponding mapping position is used as the position of the device. The offline positioning method based on the wireless hot spot realizes the quick positioning of the user side.

Description

technical field [0001] The invention relates to the technical field of computers, in particular to an offline positioning method based on wireless hotspots. Background technique [0002] When it comes to positioning and navigation, the most famous is the GPS global positioning system of the United States, and China has also launched its own Beidou navigation system. However, satellite positioning signals cannot penetrate buildings and can only be used in outdoor environments. Once indoors, satellite positioning cannot be used because the signal attenuates too fast. [0003] In recent years, in order to solve the "last mile" problem of outdoor positioning and navigation, technology giants and research institutions have carried out a lot of research in the field of indoor positioning technology, such as assisted GPS (A-GPS) based on mobile communication networks, pseudolite (Pseudolite) , wireless local area network (WLAN), radio frequency tag (RFID), Zigbee, Bluetooth (Bluet...

Claims

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Application Information

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IPC IPC(8): H04W64/00H04W4/02
CPCH04W64/00H04W4/023
Inventor 王洋叶周
Owner 王洋
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