Downhole accurate positioning system and method

Abstract

The invention discloses a downhole accurate positioning system and a method. The downhole accurate positioning system comprises general control, transferring devices and a mobile node. The general control is arranged at the outer end of a mine, and is used for collecting and processing downhole information and sending the information to the downhole. The transferring devices are arranged inside the mine at intervals, and an information transmission link is formed. The mobile node is carried by downhole personnel, and the downhole personnel can send and receive the information through the mobile node. The downhole accurate positioning system and the method have the advantages that the transferring devices are arranged along the road of the mine, position information of the transferring devices is stored in the general control, when the transferring devices receive initial information sent by the mobile node which is carried by the personnel, the distances of the transferring devices can be calculated, and specific marks of the transferring devices are added into the information, and the information is sent to the general control through the multiple transferring devices so that the accurate position of the personnel can be judged by the general control. Due to the signals are continuously sent by the mobile node, the geographical position information of each personnel can be known by the general control anytime, and the position of the mobile node can be deduced according to the positions of the transferring devices, and data processing is very convenient.

Description

technical field [0001] The invention relates to the positioning and safety of personnel in mines, in particular to an underground precise positioning system and method. Background technique [0002] With the continuous deepening of my country's economic system reform and the accelerating modernization process, the country has paid more and more attention to coal mine safety, and the supervision has been continuously strengthened. Large and medium-sized coal mines and many small township coal mines have been equipped with a large number of coal mine safety monitoring systems, which have effectively curbed major gas explosions. Accidents happen. However, there is a lack of monitoring of the location information of underground personnel. At present, it is still difficult to manage the personnel entering the well. The rescue of mine personnel after the occurrence lacks reliable location information, which seriously restricts the efficiency of rescue and disaster relief, and lo...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the shortcomings and deficiencies of the above-mentioned prior art, provide an accurate underground positioning system and method, and solve the problem that it is difficult for managers above the mine to know the location information of all underground personnel in real time, and the location information of underground personnel is inaccurate. Defects that make it difficult to rescue after an accident

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