Mining multi-mode wireless ranging system based on UWB technology

Abstract

The invention discloses a mining multi-mode wireless distance measuring system based on a UWB technology. The mining multi-mode wireless distance measuring system comprises at least two distance measuring sensors. Each distance measuring sensor comprises an embedded processor, a UWB distance measuring module, an onboard antenna, a parameter setting module, an SD card module, a signal output isolation module, a display screen, a buzzer, an SD card module and a power supply module. Aiming at actual working conditions of an underground coal mine, the method can realize the following steps: 1) point-to-point distance measurement, point-to-multipoint distance measurement and multipoint mutual distance measurement; and 2) multiple sets of wireless ranging systems can independently work in the same working area in groups. The distance between the sensors is calculated by adopting a TOF distance measurement algorithm, and distance information or control signals are transmitted to corresponding equipment controllers, so that position sensing between mining and transportation equipment is realized, the functions of linkage control, autonomous following, collision prevention and the like between the equipment are further realized, and the method has great significance in improving the underground automatic production level of a coal mine. The labor intensity of staff is reduced, the labor is reduced, the efficiency is improved, and safe production is realized.

Description

technical field [0001] The invention relates to the technical field of wireless distance measurement in underground coal mines, in particular to a mine-used multi-mode wireless distance measurement system based on UWB technology. Background technique [0002] With the continuous improvement of the degree of mechanization of underground production in coal mines, the production efficiency is getting higher and higher. However, the excavation and transportation equipment on the working face are all driven by professional drivers, and the automatic functions such as position perception, linkage control, and automatic follow-up between the equipment cannot be well realized, the degree of automation is low, and the labor intensity of the staff is high. The number of personnel is large, resulting in high security risks. [0003] In order to realize the above-mentioned automation functions, it is necessary to first solve the problems of precise distance measurement and location awa...

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Problems solved by technology

However, the above-mentioned ranging methods have certain limitations in practical underground applications. Among them, the ultrasonic ranging technology is affected by the unevenness of the underground coal wall, and the multipath effect is obvious. In addition, it is greatly affected by non-line-of-sight, and the ranging accuracy Low; Infrared ranging technology in coal mines is easily blocked by dirt such as coal slime on the light-transmitting glass, resulting in failure to work normally; while WIFI ranging technology is based on the measurement distance of the WiFi signal RSSI method, the ranging accuracy is meter-level and the ranging The distance is limited and cannot meet the ranging needs between devices

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