Automatic control system of underground engineering structures

 

(57) Abstract:

Automatic control system of underground engineering structures relates to the mining industry, namely, the controls are underground technological structures and their metrological support. The inventive automatic control system of underground engineering structures contains methane sensors 1, connected to the transducers 2 signals, the power supply unit 9, unit 5 logical processing of the signal, the alarm unit 8 and the frame 10, it entered the device 4 stabilization and the selection signal, unit 6, display unit 7 of the agreement, forming the 3 remote control and alarm methane, and 11 remote Supervisory control equipment, the device logical processing of the signal is made of two blocks, one of which is made of series-connected receiver LEDs 33 optocouplers and transistor, and the other of the diodes, and the device stabilization and extraction of signal from each process area contains three parallel stabilization unit and a selection signal, each of which is made of a stabilizer connected to one of the diagonals of the diode is of the iodines optocouplers the stabilizer device for stabilizing and selection of the connected unit 9 power supply, and the output of the stabilization device and the selection signal is connected to the device 5 logical processing of the signal through the display unit 6 is connected to the mnemonic 10 monitoring and alarm methane and through the block 7 approval to the alarm unit 8, and 11 remote Supervisory control of process equipment contains the logic block 12 and control feeders connected to the block 15 power supply, and the display unit 13 of the feeders, the latter is connected with a mnemonic 14 technological equipment, and the output unit 7 matching remote control and alarm methane connected to the logic block 12 and control feeders remote Supervisory control equipment. 2 Il.

The invention relates to the mining industry, and in particular to automated systems and controls underground technological structures and their metrological support, and can be used in the mining industry, and in any underground engineering structures, in particular in the sewers of Moscow.

Known automatic control system of technological equipment, and the mnemonic [1] Known system bulky and power consuming.

Also known automatic control system of technological equipment containing methane sensors connected to the converters, the power supply connected to the unit receiving and sharing information, coupled with alarm, control units and mnemonic [2] This system is also bulky, consumes a lot of energy with a low reliability due to the use of contact elements.

The aim of the invention is to increase reliability while reducing material and energy consumption.

This is achieved by the fact that it entered the stabilization device and the selection signal, the display unit and unit coordination, forming a remote monitoring and alarm methane content, the remote Supervisory control equipment, the device logical processing of the signal is made of two parts, one of which is made of series-connected receiver LEDs, optocouplers and the transistor, and the other of the diodes, and the device stabilization and extraction of signal from each process area contains three parallel stabilization unit and a selection signal, each of which NAHL which through a resistor and a Zener diode connected to one of the LEDs, optocouplers, the stabilizer device for stabilizing and selection signal is connected to the power supply and the output stabilization and the selection signal is connected to the device logical processing of the signal through the display unit is connected to the mnemonic control and alarm methane, and through the power of negotiation to the alarm unit, and the remote Supervisory control of process equipment contains the logic unit and control feeders connected to the power supply unit and the display unit feeders, the latter is connected with a mnemonic process equipment, and the output of block matching remote control and alarm methane connected to the logic unit and control feeders remote Supervisory control equipment.

In Fig. 1 shows a block diagram of automatic control system of underground engineering structures; Fig. 2 is an example of executing devices 3, 5, 8, and 10.

Automatic control system (ACS) underground engineering structures consists of two systems:

automatic system monitoring and alarm methane content (ASCM);

automatic control systems are technologically the t of the sensor 1 methane, Converter 2 tone, 3 remote control and alarm about the presence of methane containing device 4 stabilization and extraction of signal from each process area, the device 5 logical signal processing, unit 6, display unit 7 of the agreement, block 8 alarm unit 9 power and the mnemonic of the 10 ASCM.

Automatic control system of technological equipment consists of 11 remote Supervisory control equipment, made of block 12 of the logic and control feeders, block 13 status indication feeders, mimic panels 14 AUTO and block 15 power.

Sensors 1 methane through the converters 2 signal two-way electrical communication connection with the device 4 stabilization and the selection signal, the output of which is connected to the device 5 logical signal processing, and the output of the latter through the block 6 display connected to the mnemonic of the 10 ASCM and through the block 7 approval to the unit 8 signaling. The output unit 7 coordination is connected to the logic block 12 and control feeders, the output of which is connected to the feeders of the fan 16, pump 17, working lights 18 and emergency lighting 19, feeder 16, 17 and 18 through the respective control boards 20, 21 and 22 are connected to teleseries 26 directly.

At each technological area of the collector is installed on three of the methane sensor 1, so each device 4 stabilization and allocation signal contains three stabilizer 27, diode rectifier bridge 28 and optocouplers 29. And one of the LEDs 30 optocoupler 29 included in one of the diagonals of the diode rectifier bridge 28 through resistor 31 and diode 32. Other LEDs 33 optocoupler 29 are connected in series and together with the transistor 34 to form the first block OR device 35 5 logical signal processing and its the second block 36 is made on the diodes 37.

Unit 7 matching is performed on the transistor 38, switch 39 of the manual and automatic modes.

The logic block 12 and control feeders contains diodes 40, 41, 42 and 43, transistors 44, 45, 46, 47, 48, 49 and diodes 50, 51, 52 and 53.

Example of ACS underground engineering structures in automatic mode, when the methane concentration is 1% CH4(emergency mode).

When the concentration of methane in underground engineering structures more threshold sensors (1% CH4) direct component (DC voltage) at the output of the stabilizer 27 disappears. Thus the photocurrent through consistently VK is OR 35) is closed. The voltage on the emitter disappears. Transistor switch block 6 of the display is closed (not shown) and a voltage of +12 V is supplied to the LEDs mimic the 10 ASCM indicating the presence of methane in the control zone.

The same signal the Presence of methane delivered to the base of transistor 38 unit 7 approvals made under the scheme emitter repeater and transmits the signal to the input of the control unit feeders, switches off the pump and working lights and includes fans and emergency lighting. This happens as follows. The signal from the emitter of transistor 38 through diodes 40 and 41 is supplied to the bases of transistors 44 and 45. They appear, therefore, to the collectors of these transistors voltage close to "0". Voltage to the feeders 16 and 17 is not supplied and there is a power working lighting and pumps. The signal from the emitter of transistor 38, passed through the diodes 42 and 43, is supplied to the bases of transistors 46 and 48, which open and close the transistors 47 and 49 (keys-inverters and diodes 52 and 53, the voltage will turn on emergency lighting and through the feeder 19 and the control panel 22 to switch on the fan 26.

In addition, the emitter of the transistor 38 of the block matching 7 signal will go to the block 8 signaling, dicale status feeders 15, 16, 17 and 18 and through the key elements (not shown) transmit the signals to the LEDs 14 mnemonic AUTO.

The methane sensors, transducers parameters, blocks stabilization and siren produced NGOs "Krasny Metallist" ,Konotop, Ukraine.

AUTOMATIC CONTROL SYSTEM of UNDERGROUND ENGINEERING STRUCTURES containing methane sensors connected to the signal converters, power supplies, device logical processing of the signal, the alarm unit and the mnemonic, characterized in that it introduced the stabilization device and the selection signal, the display unit and unit coordination, forming a remote monitoring and alarm methane content, the remote Supervisory control equipment, the device logical processing of the signal is made of two parts, one of which is made of series-connected receiver optocoupler LEDs and transistor, and the other of the diodes, and the device stabilization and extraction of signal from each process area contains three parallel stabilization unit and a selection signal, each of which is made of a stabilizer connected to one of the diagonals of the diode rectifier bridge, the other is ilization device stabilization and the selection signal is connected to the power supply, and the entrance of the stabilization device and the selection signal is connected to the device logical processing of the signal through the display unit is connected to the mnemonic control and alarm methane, and through the power of negotiation to the alarm unit, and the remote Supervisory control of process equipment contains the logic unit and control feeders connected to the power supply unit and the display unit feeders, the latter is connected with a mnemonic process equipment, and the output of block matching remote control and alarm methane connected to the logic unit and control feeders remote Supervisory control equipment.

 

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