A multi-wifi fast positioning method and device
A positioning method and technology for positioning devices, which are applied to measurement devices, instruments, and re-radiation, etc., can solve the problems of reducing the amount of calculation, low efficiency of WIFI positioning, and large amount of calculation, so as to reduce the amount of calculation, fast positioning, and improve fault tolerance. rate effect
Active Publication Date: 2022-05-06
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, comprising: obtaining the latitude and longitude coordinates of all WIFIs in a target area; dividing all WIFIs into short-distance WIFIs and long-distance WIFIs according to the signal strength; when the number of short-distance WIFIs is greater than When 1, calculate the first midpoint of all short-distance WIFIs; when the short-distance WIFI exceeds the preset number ratio at the first midpoint, determine the short-distance WIFI with the highest signal strength among the short-distance WIFIs exceeding a certain number ratio as the positioning Point, end positioning; when the short-distance WIFI does not exceed the preset number ratio within the preset distance value range of the first midpoint or when the number of short-distance WIFI is not greater than 1, calculate the second midpoint of all WIFI according to the latitude and longitude coordinates , calculate the average distance between all WIFIs and the second midpoint, if it is judged that there is a short-distance WIFI at a point less than the average distance, select the short-distance WIFI with the highest strength as the positioning point, and end the positioning; otherwise, it is calculated by all WIFIs that are less than the average distance The third midpoint is used as the positioning point, and the positioning is ended.
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