Indoor positioning system and method based on WLAN wireless signal strength

Abstract

The invention provides an indoor positioning system based on WLAN wireless signal strength. The system is characterized by comprising a C / S system structure comprising 1) an intelligent terminal device, 2) a WLAN wireless connecting point, and 3) a server side positioning supporting platform; the intelligent terminal device, the WLAN wireless connecting point and the server side positioning supporting platform form the C / S system structure. The system has the advantages that (1) the problem that the current outdoor positioning technology, in particular the GPS technology cannot provide indoor positioning service, can be solved, the indoor navigation service can be provided to a user, and the sudden indoor events can be effectively handled; (2) location-based related services can be provided according to the indoor positioning, and the potential commercial value of an indoor market can be explored; therefore, the indoor navigation service can be provided to the user, the sudden indoor events can be assisted to be handed, the indoor market commending and advertisement launching can be accurate and effective, and as a result, large economic benefit is brought.

Description

technical field [0001] The invention relates to an indoor positioning method, in particular to an indoor positioning system and method based on WLAN wireless signal strength. Background technique [0002] In recent years, with the rapid deployment of wireless communication networks and the increasing popularity of smart terminal devices (such as smart phones, tablet computers, and wearable devices, etc.), user context information, especially location information, has become more and more important. For example, Based on location information, it is possible to realize vehicle navigation in indoor parking lots or provide personalized shopping guide services for commodities in large shopping malls; it is also possible to provide a series of marketing services based on location information, such as recommending discounted products for users in department stores or offering discounted products in exhibition halls. Visitors promote products on display, etc. The future is the era ...

AI Technical Summary

Problems solved by technology

However, most of the current indoor positioning algorithms based on WLAN use the wireless AP access point received signal strength (RSSI for short) as the fingerprint feature vector for positioning. The complexity of the indoor environment makes fingerprint collection based on RSSI have device heterogeneity. , that is, the RSSI fingerprint information collected by different devices in the same indoor location may be quite different, which greatly reduces the positioning accuracy based on the WLAN indoor positioning algorithm.

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