WIFI device positioning methods applicable to small region

Abstract

The invention discloses two WIFI device positioning methods applicable to a small region. According to the two methods, it is assumed that the small region comprises three WIFI base stations which are located at three vertexes of a regular triangle; and a rectangular coordinate system is established by taking a straight line on which the base of the regular triangle is located as an X axis, the straight line passing through one vertex and the middle point of the base as an Y axis and the intersection point of the two straight lines as an origin. A first method is that WIFI devices in the region initiate positioning actively, so that a user holding a WIFI device can obtain the map of the region from the WIFI base stations, and therefore, the user can know the information of the surrounding region and can find out a required place easily. A second method is that the WIFI base stations initiate positioning actively, and the base stations position the WIFI device in the region actively. The methods are more suitable for performing active positioning by the WIFI devices and actively positioning the devices by the base stations in the small region, the layout complexity of the user base stations is reduced, the positioning speed is fast, the positioning is simple, and the accuracy is high.

Description

Technical field [0001] The invention involves a WiFi device positioning method suitable for small areas, which is a positioning technology field. Background technique [0002] There are two main types of positioning technologies: one is the GPS positioning method. This method is to directly interact with satellite to obtain the current latitude and latitude with the support of GPS hardware. Generally, devices (such as mobile phones) support GPS modules.Positioning through GPS, the accuracy is the highest, but its disadvantages are also obvious: 1. Most users do not turn on the GPS module by default;Time; 3. It is easy to be obstructed by obstacles, and the room is almost impossible.The other is the base station positioning method. The base station positioning is generally suitable for mobile phone users. The mobile base station positioning service is also called the mobile location service (LBS-Location Based Service).The location information of the terminal user (latitude and la...

AI Technical Summary

Problems solved by technology

GPS positioning has the highest accuracy, but its disadvantages are also obvious: 1. Most users do not turn on the GPS module by default; 2. It may take a long time from the start of the GPS module to the acquisition of the first positioning data. Time; 3. It is easily blocked by obstacles, and it is almost impossible to use indoors

The other is the base station positioning method. Base station positioning is generally applicable to mobile phone users. The mobile phone base station positioning service is also called mobile location service (LBS--Location Based Service). The location information (latitude and longitude coordinates) of the end user, this method can also be used on mobile phones without GPS modules, it needs to consume traffic, the speed is relatively fast, but the accuracy is very low

[0003] The above two methods can realize the function of user equipment positioning, but both have certain disadvantages, and the above-mentioned base station positioning methods also need the support of mobile operators, and both methods are not suitable for independent device positioning in small areas

Images