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Method for identifying abnormal AP in mobile positioning technology

A technology of mobile positioning and identification method, applied in electrical components, wireless communication, network planning and other directions, can solve the problems of mobile positioning accuracy, stability impact, error position, beating, etc., to improve positioning stability and positioning accuracy. Effect

Active Publication Date: 2019-11-19
BEIJING RTMAP TECH
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, among the AP signals that can be detected by the user's mobile phone, there are many WiFi hotspots carried by people, outdoor high-power APs of operators, same-source APs with twin multi-broadcast MACs of the same hardware, and APs caused by store moves. Abnormal AP hotspot signals such as migration, these AP hotspots with relatively unstable positions and inconsistent power and other influencing factors will have a serious impact on the accuracy and stability of mobile positioning, so they are defined as abnormal APs in mobile positioning. Effective detection and identification of abnormal AP signals, resulting in large errors and large position jumps

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  • Method for identifying abnormal AP in mobile positioning technology

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Embodiment Construction

[0016] The technical solution of this patent will be further described in detail below in conjunction with specific embodiments.

[0017] see figure 1 , a method for identifying abnormal APs in mobile positioning technology, the specific steps are as follows;

[0018] Step 1: Identify fake APs: fake APs are also called partial APs, and the MAC broadcasted by them is not a standard IEEE legal number segment, causing disruption to mobile positioning. The identification method of such APs is: by checking the 6 bytes of the MAC Check the specified bit in the MAC address. The specific check bit is the seventh bit of the eight bits in the first byte of the MAC. When this bit is "1", it means that the MAC is a fake MAC, otherwise it is a true MAC;

[0019] Step 2: Identify mobile AP: Mobile AP is also called moving AP, and its real location is constantly changing. The identification method is: by tracking its signal strength RSSI, observe when its signal has a strong RSSI at differe...

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Abstract

The invention discloses a method for identifying an abnormal AP (Access Point) in a mobile positioning technology. The method comprises the following specific steps: step 1, identifying a pseudo AP: performing checking by checking a specified bit in 6 bytes of an MAC (Media Access Control); step 2, identifying the mobile AP: carrying out identifying by tracking the signal strength RSSI of the mobile AP; step 3, identifying homologous APs: fitting an RSSI distribution model of each AP and AP position estimation by processing acquired sample data; 4, identifying the high-power AP: observing whether the RSSI distribution of the AP has several characteristics or not to perform judgement; and step 5, identifying the expired AP: performing analyzing according to the returned data of the user ina continuous period of time. According to the method provided by the invention, the abnormal APs in mobile positioning are effectively classified, and the method for identifying various abnormal APs is provided, so that the abnormal APs in mobile positioning can be effectively identified and eliminated in subsequent calculation, and the positioning stability and positioning precision in WiFi positioning are effectively improved.

Description

technical field [0001] The invention relates to the field of location services, in particular to a method for identifying abnormal APs in mobile positioning technology. Background technique [0002] With the rapid development of mobile Internet, people's demand for various mobile services in daily life also increases, and location service is one of the basic needs. In addition to GPS, Beidou and other satellite positioning systems that provide location services, positioning technology based on Wi-Fi signals (signals broadcast by civilian AP hotspots) is currently one of the mainstream indoor and outdoor positioning technology solutions. In terms of positioning algorithm, it is mainly based on the signal strength RSSI of the AP for distance measurement and positioning, or based on the characteristics of RSSI for fingerprint feature matching. Usually, in more scenarios, the positioning service provider cannot accurately obtain the location of the AP, and can only estimate the...

Claims

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Application Information

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IPC IPC(8): H04W24/04H04W64/00H04W16/20
CPCH04W24/04H04W64/003H04W16/20
Inventor 方灵刘文龙徐连明
Owner BEIJING RTMAP TECH