Dynamic detection and filtering method for invalid AP in WIFI indoor positioning system

Abstract

The invention discloses a dynamic detection and filtering method for invalid AP in a WIFI indoor positioning system. The method comprises detection and filtering, wherein (1) Detection comprises the following specific steps of: receiving, storing and forwarding UDP message related to positioning information RSSI by a gateway part of a WIFI indoor positioning server, analyzing the UDP message on the same day at the time requiring less indoor positioning each day, taking a MAC address of wireless equipment as a unique identification, collecting the quantity of the positioning message of the same equipment and the connection condition of the wireless equipment and the AP, automatically generating an invalid AP table on the same day and dynamically updating the overall invalid AP according to certain strategy dynamics; (2) filtering comprises the following specific steps of: on the basis of the overall invalid AP table, filtering the UDP message of the invalid AP on the gateway part, screening the message used for positioning and sending to WIFI indoor positioning engine. According to the invention, the problems of much more invalid data stored by the original WIFI indoor positioning system and high calculating pressure of the positioning engine can be solved and the physical storage pressure and positioning of data and the calculating pressure based on the behavioral analysis of the position can be relieved.

Description

technical field [0001] The invention belongs to the field of WIFI indoor positioning, and more specifically relates to a dynamic detection and filtering method for invalid APs in a WIFI indoor positioning system. Background technique [0002] In recent years, with the increase of mobile devices and the rapid development of wireless positioning technology, Location Based Service (Location Based Service, LBS for short) is more and more closely related to people's work and life. The global positioning system can provide good positioning accuracy outdoors, but in cities with dense buildings, especially indoors, because satellite signals cannot penetrate buildings, the signals reaching indoors are limited and weak, resulting in inability to locate. The average person spends 80% of their time indoors, so "the last 100 meters of mobile Internet service" has become a hot research topic. Currently commonly used indoor positioning technologies include WIFI, Bluetooth, infrared, RFID,...

AI Technical Summary

Problems solved by technology

[0005] The technology of the present invention solves the problem: overcoming the current problems of many invalid WIFI indoor positioning messages, large amount of invalid data stored, high calculation pressure of the positioning engine, and untimely response to positioning requests, and provides a dynamic monitoring system for invalid APs in the WIFI indoor positioning system. Detection and filtering method, this method can effectively and dynamically detect invalid APs, filter out invalid data in a timely manner in the gateway part of the positioning server, avoid invalid calculations by the positioning engine, and improve the response of mobile device positioning requests in a timely manner

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