Ultra wide band location method and system in coal mine well

Abstract

The invention discloses an ultra wide band location method and an ultra band location system in a coal mine well. The method is a banded cell two-step locating method and comprises the following steps of: dividing a plurality of continuously-overlapped banded locating service cells along a roadway; calculating nominal intervals of all reference points; filtering according to received signal strength (RSS) data by an object; measuring and calculating an area coverage in which the object is located; and obtaining the accurate position of the object by a hybrid location method based on cumulative average weighted processing. The system comprises an upper-layer terminal, a data locating server, a ground monitoring terminal, a switchboard, an intrinsically safe gateway, an intrinsically safe wireless relay, an intrinsically safe reference point terminal and an intrinsically safe location terminal. The ultra wide band location method and the ultra wide band location system have strong anti-reference capability, accurate location, a simple structure of system equipment and low power consumption, are more suitable for the roadway working environment, and meet the requirements of the coal mine well for specific operating environment and safety demand.

Description

technical field [0001] The invention relates to a positioning method and system, in particular to an ultra-broadband precise positioning method and system in underground coal mines. Background technique [0002] Coal is the main energy source in my country, but due to the complex geological conditions of coal fields in my country, harsh production conditions, relatively backward mining technology, and low quality of production personnel, accidents in my country's coal mine production occur frequently, and coal mine safety issues seriously restrict my country's coal industry healthy development. Once an accident occurs, it is difficult for ground personnel to dynamically grasp the distribution and operation conditions of underground personnel in a timely manner. The efficiency of emergency rescue and rescue and safety rescue is low, and the search and rescue effect is poor. Therefore, it is necessary to study the precise positioning method and system of coal mine underground ...

AI Technical Summary

Problems solved by technology

[0009] In order to overcome the above deficiencies, especially to overcome the small coverage of the mine positioning system, poor anti-interference ability, low positioning accuracy, limited number and layout density of positioning reference points in the roadway, limited volume of mine positioning equipment, ultra-wideband signal The problem of serious multipath effect during transmission in the mine roadway, etc., the present invention provides an accurate and real-time ultra-wideband positioning method and system for coal mine underground

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