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The coal industry is a pillar industry of my country’s national economy and social development, and it plays a pivotal role in my country’s national economy. However, due to the complex coal storage conditions in our country, the low level of coal mine automation, the large number of underground workers, the backward technology used in the production safety monitoring system, the single function, and the management and other factors, the production cost is high and the safety situation is not optimistic, which has seriously affected Sustainable development of the coal industry and social stability.
Aiming at the supervision of underground personnel positioning in coal mines, our company has applied the most advanced radio frequency identification and wireless monitoring technology to develop an underground target positioning and tracking system with independent intellectual property rights and international technology-KJ133 mine personnel positioning safety management system. The system can achieve “full coverage” of signals under various roadway conditions in the underground, and achieve “full, real-time, continuous and accurate positioning and tracking” of underground personnel, vehicles, equipment and other targets, as well as “full coverage” of underground personnel. Real-time two-way wireless communication”. At the same time, the daily safety management function of the system can also be used to manage the safety and attendance of mine personnel.
System principle:
The KJ133 mine personnel positioning safety management system uses radio frequency identification technology and computer communication technology. The central control computer system is set up in the uphole dispatching room, the card inspection system and the attendance system are set up at the wellhead, and the KJF82A mine intrinsic safety type is arranged in the relevant location underground. Card reader station, KJF82A.1 mine-used intrinsically safe wireless transceiver and KGE41A radio frequency locator.
The card-reading substation and the central control computer system are connected through the mining signal cable and optical cable hybrid network or industrial Ethernet ring network. The underground personnel, vehicles, equipment and other targets carry the KGE39A identification card respectively. The system passes through the card-reading substation, The wireless communication between the wireless transceiver and the identification card realizes the target positioning and wireless paging of the identified object, so as to perform tasks such as production command and dispatch, safety monitoring and inspection, personnel verification and attendance, area prohibition control, emergency handling, etc. Provide effective means. The system can simultaneously transmit relevant data to management departments at all levels, providing an important basis for leaders at all levels to supervise, command and make decisions.
(The schematic diagram is as follows)
System functions:
Attendance statistics and report query: including total number of underground personnel, downhole time, number of times, area stay time, daily attendance report, etc.;
Tracking and positioning: including area positioning, ±25m, ±10m precise positioning, tracking, personnel movement routes, etc.;
Two-way paging: including wireless paging from the ground to underground personnel, and wireless calling from underground personnel to the ground for help;
Networked personnel information management: real-time transmission of underground personnel information, and can realize multi-department and multi-level sharing;
Wireless mobile gas monitoring: refers to real-time monitoring and displaying of the gas concentration around underground personnel, and real-time alarm.
Application products:
JCB4 portable methane detection alarm
KGE39A identification card
KGE41A mine radio frequency locator
KJF82A.1 Mine-used intrinsically safe wireless transceiver
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