A system and method for locating moving targets in coal mines

Abstract

The invention discloses a system and method for locating a moving target in a coal mine. According to the conditions of the coal mine roadway lines, the system of the present invention only needs to arrange anchor nodes at each crossing position of the roadway lines, and equip the moving nodes for the coal mine underground moving targets respectively, so as to realize the accurate positioning of the coal mine moving targets; the system investment of the present invention is small , the positioning accuracy is much higher than the traditional section positioning system. The method of the present invention uses a gyroscope and an acceleration sensor to measure the angular displacement and linear displacement of the moving target, and it is necessary to control the error in the calculation process. Due to the section division of the roadway in the coal mine, the distance is relatively short, and the relative displacement data error of the mobile node is large. Small; the absolute position information of the moving target uses ultrasonic positioning, because the speed of ultrasonic propagation is much smaller than radio signals or other electrical signals, therefore, the method of the present invention adopts the TOA based on ultrasonic The absolute position positioning accuracy of the moving target is higher and meets the actual accuracy requirements.

Description

technical field [0001] The invention belongs to the field of mine monitoring and communication, and relates to a system for locating a moving target in a coal mine and a method for locating a moving target in a coal mine. Background technique [0002] The underground geological conditions of my country's coal mines are very complex, the mine roadways are tens of kilometers long, the working environment is harsh, the working locations are scattered, and the mobility of operators and equipment is large. It is often difficult for operators to determine their own location in the coal mine, especially when an accident occurs, it is even more difficult to accurately locate the personnel and mobile equipment at the accident site; in addition, due to the large number of mobile equipment in the coal mine, such as various transportation and loading locomotives are scattered, management It is very inconvenient to get up. Therefore, if an accurate positioning system for operators and m...

AI Technical Summary

Problems solved by technology

It is often difficult for operators to determine their own location in the coal mine, especially when an accident occurs, it is even more difficult to accurately locate the personnel and mobile equipment at the accident site; in addition, due to the large number of mobile equipment in the coal mine, such as various transportation and loading locomotives are scattered, management very inconvenient

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