UWB and ZigBee-based positioning method and system applied to mine

Abstract

The invention discloses a UWB and ZigBee-based positioning method applied to a mine. The UWB and ZigBee-based positioning method comprises the following steps: constructing a ZigBee wireless ad hoc network; measuring the distance between the positioning base station and other positioning base stations within the wireless signal coverage range of the positioning base station by a positioning base station; measuring the distance between the positioning terminal and the plurality of positioning base stations in a wireless signal coverage range by a positioning terminal; and uploading the distancemeasurement result to a server, and calculating the distance measurement result by the server to obtain the accurate position of the positioning terminal. A UWB and ZigBee-based positioning system applied to a mine comprises a positioning terminal, positioning base stations and a server, the positioning terminal is wirelessly connected with the positioning base stations through UWB and ZigBee, and one positioning base station is selected to be connected with the server through the Ethernet and used for uploading distance data to the server; accurate positioning of the mine laneway can be achieved, the technology is simple, equipment installation is convenient and fast, networking is flexible, expansibility is high, and applicability is wide.

Description

technical field [0001] The invention relates to the field of positioning, in particular to a positioning method and system based on UWB and ZigBee applied to mines. Background technique [0002] Commonly used positioning methods for underground personnel positioning in mines include: radio frequency identification technology (RFID), received signal strength indication (RSSI), measured time of arrival (TOA), measured time difference of arrival (TDOA) and other methods. [0003] At present, the number of positioning systems based on radio frequency identification technology (RFID) is the largest in actual use in mines. The use of RFID has the following problems: the positioning accuracy is limited by the distribution density of readers, and only regional positioning can be achieved, and accurate positioning with an error of several meters cannot be achieved; At the same time, due to the limitation of RFID reading and writing speed, it cannot handle the situation that many peop...

AI Technical Summary

Problems solved by technology

[0003] At present, the number of positioning systems based on radio frequency identification technology (RFID) is the largest in actual use in mines. The use of RFID has the following problems: the positioning accuracy is limited by the distribution density of readers, and only regional positioning can be achieved, and accurate positioning with an error of several meters cannot be achieved; At the same time, due to the limitation of RFID reading and writing speed, it cannot handle the situation that many people pass through the card reading system at the same time, and it is easy to miss reading.

However, this scheme only proposes a precise positioning system and positioning method in a single area, which cannot meet the precise positioning requirements in narrow and long spaces such as mine roadways and construction tunnels.

Images