High-precision positioning system based on Beidou UWB technology and application

Abstract

The invention provides a high-precision positioning system based on a Beidou UWB technology. Positioning information from a Beidou positioning and receiving module is received outdoors, position information is determined indoors through an IR-UWB positioning module, and a processor chip transmits useful information to a background server through a GSM communication module and a WiFi module after judgment; the system further comprises a data processing module, one end of the data processing module is connected with a switch, the other end of the data processing module is connected with the WiFimodule or the GSM communication module, the switch sends data of the data processing module to the server, the server is connected with a positioning algorithm module, and the positioning algorithm module is connected with the equipment terminal. According to the defects in the prior art, the invention provides the high-precision positioning system based on the Beidou UWB technology, which is high in precision and convenient to implement, and the application of the high-precision positioning system to roads, railway tunnels and rail transit.

Description

technical field [0001] The invention relates to the technical field of navigation and positioning, in particular to a high-precision positioning system based on Beidou UWB technology and its application. Background technique [0002] Due to the harsh and harsh construction environment of highway and railway tunnels, the high risk factor of the type of work, and the large number of workers, tunnel construction companies are faced with huge management difficulties. An efficient and accurate personnel management and safety management system is urgently needed. It mainly includes personnel attendance, tracking and positioning, post-disaster first aid, daily management, etc. [0003] UWB indoor high-precision positioning system adopts advanced pulse wireless positioning technology. By deploying positioning base stations in advance in tunnels and wearing tags (positioning terminals) for workers, it can realize high-precision real-time positioning of personnel and place them at int...

AI Technical Summary

Problems solved by technology

[0004] However, the existing UWB high-precision positioning system has the following defects: 1. The system and the base station need to be deployed in the monitored area in advance, so that the tag (positioning terminal) can be used normally, and the deployment is complicated; 2. The signal transmission of the tag and the base station, It is necessary to effectively deal with multi-path and other electromagnetic interference, otherwise it will lead to low positioning accuracy and inaccurate position (for this reason, the hardware and firmware development involved must be developed around it) to finally achieve a positioning accuracy of 30cm, or even better High, harsh application conditions; 3, the way of wearing the tag and the power consumption (working hours), to meet the actual needs of customers, the implementation is more complicated, and the operation is inconvenient