Method of establishing coordinate system between base stations in positioning system

Abstract

The invention discloses a method, apparatus, device of measuring the distance between base stations, and a positioning system based on the distance measuring method. The method of measuring the distance between base stations includes the steps: utilizing a synchronization signal to trigger a first timing module to start timing and trigger a distance measuring signal emission module to emit a distance measuring signal; utilizing the synchronization signal to trigger a second timing module to start timing; utilizing the distance measuring signal to trigger the first timing module and the second timing module to stop timing; and by means of the interval from the time when the first timing module is triggered by the synchronization signal to start timing to the time when the first timing module is triggered by the distance measuring signal to stop timing, and the interval from the time when the second timing module is triggered to start timing by the synchronization signal to the time when the second timing module is triggered to stop timing by the distance measuring signal, obtaining the distance between the first base station and the second base station. The invention also discloses a method of establishing a coordinate system between base stations in a positioning system. According to the technical scheme of the method of establishing a coordinate system between base stations in a positioning system, the cost of manpower and material resources for measurement can be saved and the positioning accuracy can be improved.

Description

technical field [0001] The present disclosure relates to wireless communications, and more particularly, the present disclosure relates to the fields of ranging and positioning. Background technique [0002] Short-range, high-precision wireless indoor positioning technology is widely used in dense urban areas and indoor closed spaces. Indoor positioning systems usually need to deploy base stations in the area to be positioned to locate the target position in the area to be positioned. The commonly used positioning algorithms in the existing indoor positioning technology include time-of-arrival (TOA) positioning and time-difference-of-arrival (TDOA) positioning. In the process of calculating the target position, the above-mentioned algorithms need to use the coordinate position of the base station based on a specific coordinate system to solve The position of the target relative to that particular coordinate system. This requires the positioning system to establish a coordi...

AI Technical Summary

Problems solved by technology

[0005] The method of using the distance between base stations to establish a coordinate system solves the problem of huge labor costs, limited by the layout environment of base stations and Due to the influence of instrument measurement error and human error, etc., the problem of poor accuracy

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