Multi-WIFI rapid positioning method and device
A positioning method and technology of positioning device, which are applied to measurement devices, use re-radiation, instruments, etc., can solve the problems of reducing the amount of calculation, large amount of calculation, low efficiency of WIFI positioning, etc., to reduce the amount of calculation, improve the fault tolerance rate, fast The effect of positioning
Active Publication Date: 2020-06-05
蔡小雨
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[0005] The invention provides a multi-WIFI rapid positioning method, by dividing WIFI into short-distance WIFI and long-distance WIFI, combining the distance between each point and the midpoint to quickly eliminate wrong points and calculate the distance through latitude and longitude, so as to solve the existing multi-WIFI The positioning scheme has a large amount of calculation, which leads to the technical problem of low WIFI positioning efficiency, which greatly reduces the calculation amount and improves the fault tolerance rate at the same time, thereby realizing the rapid positioning of multiple WIFI
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[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0032] Please refer to Figure 1 to Figure 3 , the preferred embodiment of the present invention provides a multi-WIFI fast positioning method, including:
[0033] S1. Obtain the latitude and longitude coordinates of all WIFIs in the target area.
[0034] S2. Detect the signal strength of all the WIFIs, and divide all the WIFIs into short-distance WIFIs and long-distance WIFIs according to the magnitude of the signal strengths; in this embodiment, when the signal ...
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The invention discloses a multi-WIFI rapid positioning method. The method comprises the following steps: obtaining longitude and latitude coordinates of all WIFI in a target area; dividing all the WIFI into short-distance WIFI and long-distance WIFI according to the size of the signal intensity; when the number of the short-distance WIFI is greater than 1, calculating a first midpoint of all the short-distance WIFI; when the proportion of the short-distance WIFI at the first midpoint exceeds a preset number proportion, determining the short-distance WIFI with the maximum signal intensity in the short-distance WIFI exceeding a certain number proportion as a positioning point, and ending positioning; when the short-distance WIFI does not exceed a preset quantity proportion in a preset distance value range of the first midpoint or the quantity of the short-distance WIFI is not greater than 1, calculating second midpoints of all the WIFI according to the longitude and latitude coordinates,calculating the average distance between all the WIFI and the second midpoints, and if it is judged that short-distance WIFI exists in the points smaller than the average distance, selecting the short-distance WIFI with the maximum intensity as a positioning point, and ending positioning; otherwise, calculating a third midpoint as a positioning point through all the WIFI of which the average distance is smaller than the average distance, and ending the positioning.
Description
technical field [0001] The invention relates to the technical field of communication positioning, in particular to a multi-WIFI fast positioning method and device. Background technique [0002] WiFi real-time positioning is a technology that uses the existing wireless network, cooperates with WIFI tags and related terminal equipment such as positioning equipment, WIFI mobile phones, PDAs, laptops, etc., and then combines the corresponding positioning algorithm to determine the location of related items to be located. . How to quickly and accurately calculate the position of the item to be located through different wifi numbers and different signal strengths has always been the research direction of the industry. [0003] In the prior art, the method of positioning by wifi is mainly divided into single wifi positioning and multi-wifi positioning; among them, multi-wifi positioning needs to calculate the position according to the signal conditions of multiple wifi in the posi...
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IPC IPC(8): G01S11/06
CPCG01S11/06
Inventor 蔡小雨
Owner 蔡小雨