An indoor positioning method, device and computing device

Abstract

The embodiments of the present invention provide an indoor positioning method and device and a computing device. The indoor positioning method is applied to the computing device of an indoor positioning system. The indoor positioning system further comprises a to-be-tested terminal and N base stations, wherein N is an integer larger than 1; the method comprises the following steps: receiving strength indicator values RSSI of N received signals sent by the to-be-tested terminal, wherein the N RSSIs are strength indication values of signals sent by N base stations to the to-be-tested terminal; and selecting n RSSIs in a preset range in the N RSSIs, wherein n is an integer larger than 1 and not greater than N; according to the n selected RSSIs, determining n distance values between the n basestations corresponding to the n RSSIs and the to-be-tested terminal respectively; and determining the position coordinates of the to-be-tested terminal according to the n distance values and the n RSSIs. According to the technical scheme in the invention, the positioning precision for positioning the to-be-tested terminal can be improved.

Description

technical field [0001] The present invention relates to the technical field of indoor positioning, in particular to an indoor positioning method, device and computing equipment. Background technique [0002] At present, the technology widely used in indoor positioning is wireless sensor network technology, which is widely used in positioning services in conference centers, airports, stadiums, etc. Received Signal Strength Indication (RSSI) is a positioning technology that measures the distance between the base station and the terminal to be tested by the strength of the signal received by the terminal to be tested, and then performs positioning calculations based on the corresponding distance data. A positioning method commonly used in wireless sensor network technology. [0003] In the prior art, when using RSSI to locate the terminal under test, the commonly used method is: the terminal under test receives signals transmitted by N base stations, and sends the received N s...

AI Technical Summary

Problems solved by technology

However, in practical applications, there may be large errors in the RSSI received by the terminal under test from the N base stations. For example, an error occurs during signal transmission and the RSSI is very small or very large. Another example is that the computing device receives the RSSI of the terminal under test. , the received RSSI does not match the actual value due to data transmission errors, etc.

Therefore, when the prior art locates the terminal under test based on the RSSIs received by the terminal under test from N base stations, the positioning accuracy is low

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