Central Control KSP-3

Centralized mine gas control system includes:

- telemetric exchanges KSP-2C, KSP-3;

- underground part - end devices (sensors, underground exchanges, etc.);

- supply-transmission lines.

Telemetric exchange KSP-3 being part of the safety system and called station part is responsible for:

- Continuous acquisition, processing, visualisation and archiving of signals from measuring sensors and end devices operating in methane and/or coal dust explosion hazard zones to the safe zone; bezpiecznej;

- Signalling of alarm thresholds set and in case of exceeding of the allowable values-switching off supplying of machines and equipment in hazard zones;

- Carrying out controls including calibration of measuring circuits of sensors installed underground;

- Communication of signals about occurred exceedings and alarms to alarm-broadcast systems.

- Communication with facility's equipment (that is gas sensors, environmental parameters sensors, converters and exchanges of binary signals etc.) takes place through supply-transmission lines, using one pair of copper conductors using digital transmission or frequency-coding.

Connected sensors are sending information about measurements few times per second;

Thanks to a programmable trip matrix it is possible to transmit alarms between exchanges operating in one system using Ethernet bus. The KSP-3 cabinet can work with the KSP-2, KSP-2C cabinet in the gas monitoring system and share the monitoring interface (SOLARIS, Zefir, SWµP, Sd2000, etc.) and alarm system ( SAT, STAR, HETMAN, etc.).

System carries out among other things measurements of such parameters of the atmosphere as:

- Methane concentrations in the air;

- Carbon dioxide concentrations in the air;

- Carbon oxide concentration in the air;

- Oxygen concentration;

- Methane concentrations in the demethanization pipelines;

- Air flow speed;

- Air temperature;

- Air humidity;

- Rock mass temperature 

- Absolute pressure;

- Pressure difference;

- Concentration of toxic gases

And allows connection of binary sensors using underground exchanges of binary signals. It also ensures possibility to connect other sensors measuring specified parameters of the mine atmosphere, which design allows sending of signal in the way assumed for the system. One measuring line (pair of conductors) can service signals from 1 to 4 detectors (this number is limited by current efficiency of the line). Thanks to a programmable trip matrix it is possible to transmit alarms between exchanges operating in one system using Ethernet bus.