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| Monitoring and Control for Environment and Personnel Safety of Mine |
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Model KJ95N Integrated Monitoring and Control System for Coal Mine is our newly-developed system by use of advanced technologies of computer network, ARM and EMC anti-interfering based upon our previous monitoring and control systems for coal mine. The system can monitor and display various parameters of environment and production for coal mine and realize functions of alarm and control as well as monitor and display methane drainage process. It is suitable for small, medium/large-scaled coal mines.
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The system conforms to AQ6201-2006 General Technical Requirements of Safety Monitoring and Control System for Coal Mine and related industrial standards. |
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The system can monitor and display the environmental parameters such as methane, air flow, negative pressure, carbon monoxide, smoke, temperature, air-door and so on, and has functions of failure locking, alarming, local or remote over-limit power-off, etc. |
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The system can monitor and display the production parameters such as coal level of bunker, water level of sump, air pressure of air compressor, count of skip bucket, start/stop of electromechanical equipments, and has function of failure alarming. |
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The system can monitor and display methane drainage process. |
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The system has function of information indication and guide, displaying event plan, related parameters and lifesaving routine guide, sending voice alarm in coal mine wide. |
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The system software has functions of parameters setup, control, page editing, display of forms, curves, histogram and analog diagram, printing and inquiring. |
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Advanced technology with various transmission modes such as transmission interfaces, optical terminal for data, industrial Ethernet, etc. |
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Simple and reliable transmission network with standard network transmission protocol, high transmission rate, low error (less than 10-8) and long non-repeater transmission distance. |
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Good compatibility and openness of the system software which is based upon Microsoft COM/DCOM technology and client/server structure. |
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On-site calibration and setup of sensors and general management and maintenance of Intrinsically Safety UPS. |
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All the main devices of the system have passed related electromagnetic compatibility test. |
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Main technical parameters |
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System Capacity: 128 outstations |
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Transmission Media: Cable, optic fiber cable |
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Transmission rate: 1200 bps |
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Transmission distance between the surface center and outstations:  15 km(cable), 20 km(optical fiber cable)
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Transmission distance between outstation and sensors: 2km |
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Analogue sensor signal: 200 1000 Hz and other signal of non-standard system |
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On-off sensor signal: non-potential contact signal, level signal |
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Executive time for methane over-limit cutting and air-door and electricity closedown:  2 s |
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Power Supply: Surface central station is powered by AC220 V/Underground device is powered by AC 127/380/660 V |
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