A decentralized beacon positioning system

Abstract

The present invention provides a decentralized beacon positioning system, including: a plurality of fixed beacons, and mobile beacons, characterized in that the fixed beacons are in the calibration mode or the base station mode, when in the calibration mode When in the mode, establish a distance information table and store the distance information between the fixed beacon and the surrounding fixed beacons; when in the base station mode, provide ranging information and distance information tables for the mobile beacon; the mobile beacon is in the calibration mode Or positioning mode, when in the calibration mode, establish a map information table and store the origin information of the coordinate system set by the mobile beacon, and the spatial coordinates of the fixed beacon communicating with it in this coordinate system; when in the base station mode When , use the ranging information, distance information table and map information table of the fixed beacon communicating with it to locate itself and the fixed beacon communicating with it, use the positioning result of the fixed beacon to update the map information table, and output its own positioning information.

Description

technical field [0001] The invention relates to the field of beacon positioning, in particular to a decentralized beacon positioning system. Background technique [0002] The beacon positioning system refers to a system that obtains the three-dimensional or two-dimensional spatial coordinates of the beacon through communication between beacons for use by other devices. The beacon positioning system includes two parts: fixed beacons and mobile beacons. Fixed beacons are mounted on walls, ceilings, or other mounting surfaces in the environment to provide location fiducial information. The mobile beacon is installed on the user equipment, receives fixed tag signals, calculates the current spatial coordinates, and provides them to the user equipment. The process of the beacon positioning system can be divided into two parts: mapping and positioning; the so-called mapping refers to the establishment of a coordinate system, and the spatial coordinates of all fixed beacons in thi...

AI Technical Summary

Problems solved by technology

[0005] 1. The stability is poor. Once there is a problem with the central node, the system will be paralyzed and cannot be used normally;

[0006] 2. The scalability is poor. Any changes in the system need to be changed through the central node. The larger the network scale, the higher the cost of changes;

[0007] 3. The deployment is complicated, requiring professionals to initialize the entire positioning network, and the quality of initialization directly determines the positioning accuracy;

[0008] 4. The coverage area is limited, and the signal coverage of the central node determines the scope of use of the system;

[0009] 5. The throughput is small, and the throughput capacity of the central node limits the number of users within the coverage area

Images