Wireless positioning method and device
A technology for wireless positioning and positioning, applied in wireless communication, electrical components, etc., can solve problems such as large error jumps, inability to guarantee the accuracy of positioning results, and large data volumes, so as to improve computing speed and accuracy, and improve concurrency The effect of data processing power
Active Publication Date: 2017-12-12
BEIJING HAN NETWORKS TECH CO LTD
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[0002] At present, the existing wireless positioning technology mainly uses the matching of the acquired wireless signal with tens of thousands of wireless signal characteristic data obtained through measurement in the background database to determine the location of the wireless signal. When a large number of positioning requests appear at the same time, the amount of data that needs to be processed and calculated in the background will be very large
On the other hand, in the whole-field matching process, there will be many wireless signal features at sampling points that are far away from the actual location of the terminal to participate in the matching calculation, and the wireless signal itself has volatility, which makes the distance Sampling points far away from the terminal position will also calculate a relatively high matching degree, so that the accuracy of the positioning result cannot be guaranteed, resulting in a large error jump point (for example, an error greater than 10 meters)
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[0036] Usually, after the mobile terminal turns on Wi-Fi (Wireless Fidelity, a wireless local area network technology), the transmitted wireless signal will be simultaneously monitored by multiple different wireless access points around. The location of the terminal is different, therefore, the wireless signal characteristics of the same mobile terminal monitored by different wireless access points are also different (for example, for different wireless access points, the signal strength of the mobile terminal is different ), in other words, different wireless access points obtain different wireless signal characteristics for the same mobile terminal. In order to better distinguish the wireless signal characteristics obtained by different wireless access points for the same mobile terminal, here, The wireless signal characteristics of the mobile terminal monitored by any wireless access point are called the wireless signal characteristics of the mobile terminal on the side of t...
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The invention provides a wireless location method and device. The wireless location method comprises the following steps: through at least one wireless access point in a predetermined area, wireless signal characteristics of a mobile terminal on the at least one wireless access point side are acquired; a locating position of the mobile terminal in the predetermined area in the least time period is acquired; on the basis of the acquired locating position, wireless access points distributed near the mobile terminal in the predetermined area are determined; according to the wireless signal characteristics of the sampling points in the predetermined area on the certain wireless access point side, sampling points provided with the acquired wireless signal characteristics are acquired; and on the basis of positions of the acquired sampling points, the current position of the mobile terminal in the predetermined area is determined.
Description
technical field [0001] The present application relates to the technical field of mobile communication positioning, in particular to a method and device for wireless positioning based on historical positioning results. Background technique [0002] At present, the existing wireless positioning technology mainly uses the matching of the acquired wireless signal with tens of thousands of wireless signal characteristic data obtained through measurement in the background database to determine the location of the wireless signal. When a large number of positioning requests appear at the same time, the amount of data that needs to be processed and calculated in the background will be very large. On the other hand, in the whole-field matching process, there will be many wireless signal features at sampling points that are far away from the actual location of the terminal to participate in the matching calculation, and the wireless signal itself has volatility, which makes the distan...
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IPC IPC(8): H04W64/00
Inventor 刘图姚力勇任亮
Owner BEIJING HAN NETWORKS TECH CO LTD