AOA base station positioning method and device based on Bluetooth

Abstract

The invention is suitable for the technical field of communication, and provides an AOA base station positioning method and device based on Bluetooth, and the method comprises the steps: obtaining a phase value corresponding to an antenna at a home terminal; the number of the antennas being at least four; the phase value being determined by a received signal broadcasted by a to-be-detected object;and calculating the position information of the to-be-detected object based on the phase value corresponding to each antenna and a preset position calculation strategy. According to the method, the position information of the to-be-detected object can be determined through the phase value corresponding to each antenna and the preset position calculation strategy, single-base-station positioning is realized, data of multiple base stations do not need to be calculated, the positioning speed is improved, and the number of deployed base stations is reduced. Moreover, when the position informationis acquired, the direction angle which is an intermediate variable can be skipped, and the phase difference is directly converted into coordinates, so that the positioning precision is improved.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a Bluetooth-based AOA base station positioning method and device. Background technique [0002] At present, Bluetooth technology is constantly evolving from the original version, the transmission rate is increasing, the power consumption is decreasing, the compatibility performance is continuously improving, and the application is becoming more and more extensive. At present, the latest Bluetooth 5.1 standard introduces the Angle of Arrival / AoA / Angle of Departure (AoD) feature. The Bluetooth 5.1 device perceives the arrival / transmission direction of the transmitting node signal, and calculates the distance between the receiving node and the transmitting node. relative bearings or angles, and then use triangulation or other means to calculate the position of the unknown node. [0003] However, in the actual use environment of this positioning technology, a singl...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a Bluetooth AOA-based base station positioning method and terminal to solve the problems in the prior art that the positioning accuracy is affected by factors such as the geometric layout of the positioning base station, the geographical location of the positioning base station, and the non-horizontal plane between the positioning base stations. Influence, low positioning accuracy

Moreover, the solution algorithm for multi-location base stations is more complicated, and the positioning is also time-consuming.

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