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Fingerprint matching-based wireless positioning method and device

A wireless positioning and fingerprint technology, which is applied in location information-based services, digital data authentication, etc., can solve problems such as wrong positioning results and reduced positioning reliability, and achieve the effect of improving reliability and high accuracy

Active Publication Date: 2014-12-03
BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] However, the existing fingerprint database update method in wireless positioning obtains the positioning result by calculating the similarity between the fingerprint feature and all the fingerprint data stored in the fingerprint database, which is easy to produce wrong positioning results, which leads to the reliability of positioning. reduction of

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  • Fingerprint matching-based wireless positioning method and device
  • Fingerprint matching-based wireless positioning method and device

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Embodiment Construction

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0042] The technical solution of the present invention can be applied to various mobile communication networks (i.e. wireless wide area networks), for example, Global System for Mobile Communications (Global System for Mobile Communications, GSM) network, General Packet Radio Service (General Packet Radio Service, GPRS) Network, Code Division Mult...

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Abstract

The invention provides a fingerprint matching-based wireless positioning method and a device. Through signal strength values of any two wireless access devices indicated by fingerprint features included in a positioning request message, screening is carried out in a fingerprint database to acquire first candidate fingerprint data, and thus according to the fingerprint features, matching is carried out in the first candidate fingerprint data to acquire the positioning result of the terminal. As matching is carried out in the first candidate fingerprint data after screening according to the fingerprint features rather than directly in all fingerprint data stored by the fingerprint database according to the fingerprint features, the accuracy rate of the positioning result in the matching mode is high, and reliability of positioning is improved.

Description

【Technical field】 [0001] The present invention relates to location service (Location Based Service, LBS) technology, in particular to a wireless positioning method and device based on fingerprint matching. 【Background technique】 [0002] In mobile communication networks such as Wideband Code Division Multiple Access (WCDMA) networks, the positioning platform can obtain fingerprint data, that is, wireless access devices, such as base stations (NodeB) or wireless compatibility certification (Wireless Fidelity (Wi-Fi for short) access point (Access Point, AP), etc., location information, identification information and signal strength value (Received Signal Strength Indication, RSSI), provide location services based on fingerprint matching to the terminal. For example, the terminal scans at least one surrounding fingerprint feature, that is, the Media Access Control (MAC) address of at least one Wi-Fi AP and the corresponding RSSI, and uses the MAC address of the at least one Wi...

Claims

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Application Information

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IPC IPC(8): H04W4/02G06F21/32
Inventor 张传明
Owner BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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