System and method for positioning moving target under coal mine

Abstract

The invention discloses a system and method for positioning a moving target under a coal mine. The system just needs to arrange anchor nodes at all intersections of roadways according to the condition of the coal roadways, and distributes a moving node for the moving target under the coal mine, thereby achieving the accurate positioning of the moving target under the coal mine. The system is low in investment, and is far higher in positioning precision than a conventional section positioning system. The method employs a gyroscope and an acceleration sensor for measuring the angular displacement and the linear displacement of the moving target, and needs to control errors in a calculation process. Because the roadways under the coal mine are divided into sections, the distances are shorter, and the error of relative displacement data of a moving node is smaller. The method employs the ultrasonic positioning for determining absolute position information of the moving target. Because the propagation velocity of ultrasonic waves is far less than that of a wireless electric signal or other electric signals, the method is higher in positioning precision of absolute position of the moving target based on ultrasonic TOA, and meets the requirements of the actual precision.

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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