SU744705A1 - Device for remote control and indication - Google Patents

Description

The invention relates to telemechanics using, as a communication line, defining power supply networks. The known telemechanic system designed to transmit technological information from objects using the power distribution network of the mine power supply as a communication line. However, when installing the telemechanics equipment and re-installing the electrical equipment of the distribution network, the operation of the control point and the controlled point is disturbed. Besides, . the asynchronous operation of the monitored items complicates the coupling of the hardware to the control computer. A common aggregate telemechanic system (OAST) is also known, which contains the equipment of the controlled point and the equipment of the control point, including the receiving and transmitting units connected to the three-phase distribution network via matching blocks .- I Synchronous operation is controlled by two points of the two pulse generators in a continuous manner L2J hard driving sync. However, with continuous synchronizing with the same control, it is even alone. A noise pulse in the distribution network of the shaft causes a short-term dissynchronization. In addition, the presence of clock pulses generators, control points and controlled points reduces the reliability of the telemechanics equipment. The disadvantages of OAST should also include the continuity of the sending of the syphonic pulses, which significantly impairs the energy performance of the use of intrinsically safe power at a controlled point. The purpose of the invention is to increase the reliability of the device. 11el is achieved by the fact that in the device for remote control and tepesignalization.

on the control point and at the KOTifphnHpyeMOM point, receive-transmitting units, transfer through the corresponding matching units to the three-phase distribution network, enter the control unit, unit, counter, element OR and kchochi, tact, and you will be asked to enter the new control unit, and you will be asked to enter the delivery network. the first key, the code of which is connected to the information input of the second key, the control codes of the transmitter and receiver unit are connected to the input of the pematomero, the output of which is connected to the first input of the counter and the control m input of the second key, the output of which is connected to the first input of the element OR and the second input of the counter, b1; 1 input of which is connected to the control unit BxoTiOM peryiotch) KitKJ4iEi, ifoaoBbie in the course of the receiving and transmitting unit is connected to the second input of the element OR, the output is ftjpbfo bSdvn At the controlled point, a switch, a signal analyzer, a clock generator, an OR element and keys, an information and synchronization output of the transmitter and receiver unit are connected, respectively, with the perVBSB and the second The inputs of the OR element, the output of which is connected to the first input of the anapizaggore signal, the first output of which is connected to the switch, the second output to the control input of the first key, the output of which is connected to the clock input of the receive and transfer of the block, the outputs of the switch are connected to the control inputs, respectively, of the second, third and fourth key, the information inputs of which are connected to the output of the matching unit, the outputs - to the input of the form-triggering clock pulses, the output of which is connected to the information input of the first key and the second input of the anapizagora signal ..,

The drawing shows a functional diagram of the device dp remote control signaling body.

The device contains a transmitting / receiving unit of the I controlled point and a receiving and pressing unit 2 of the control unit, connected to the three-phase distribution network 3 through coherent blocks 4 and 5.

Control Point Equipment there are keys 6 and 7, a decisive block 8, the inputs of which are connected to three control terminals of the output of the second power unit 2 (the output of the envelope of the high-voltage cell, the Sikhr 1 biasing BI.IXOhm and the output of the control unit), and the output of the decoupling bridge 8 is connected. key 7, whose information input is connected to the output of key 6, counter 9, one input of which is connected to the output of key 7, the other to the control input of this key, and the output to the control input of key 6, whose information input is connected to the corresponding t outputs such as are for transmitter and receiver unit 2, OR element 10, one input of which is connected to the output switch 7, the other input - with priemno.-transmitting unit outputs code 2 ,, and the output - to the control input kvdim transceiver unit 2.

The equipment of the controlled item contains analog keys 11,12 and 13,

0 switch 14, the outputs of which are connected to the control inputs of anapogy to terminals 11, 12, and 13, whose information inputs are connected to the corresponding phases of the three-phase distribution network. Through the matching unit 4, the driver 15 clocks, whose input is connected to the analog outputs keys 11,12 and 13, key 16, an information entry that connects

0 not with the output of the clock generator 15 clock pulses, and the output with the clock input of the transmitter and receiver unit 1, the signal analyzer 17, one output of which is connected to the input of the switch 14, the second output to the control input of the key 16, whose information input is connected to the first the input of the signal analyzer 17, the OR element 18, the first input of which is connected to the synchronizing output of the transmitting and receiving unit 1, the second input to the information output of the receiving and transmitting unit 1, and the code to the second input of the analyzer 17 of the signal.

The device works as follows.

In the case of common-mode operation of the control point, and the controlled point from the signal analyzer 17, the key 16 receives a control signal opening it. Switch 14 is in a state in which a corresponding analog switch, for example 11, connects one of the phases of the three-phase distribution network 3 via matching unit 4, to receive and transmit unit 2 of the control station, to the driver 1 5 clocks. The clock pulses go to the signal analyzer 17 at the receiving-overwhelming unit 1 of the controlled point via the public key 16. The receiving and transmitting unit 1 of the controlled point generates synchronizing and information signals, which are overeat in the form of a nth high-frequency signal through the matching unit 4 to the three-phase distributor network 3. At the control point, the transmitted signals are allocated in the matching unit 5 and, after processing in the transmitting and receiving unit 2, the clock signal and the high-frequency envelope the signal comes to the decisive block. In addition, from the receiving-transmitting unit 2 to the decision-making unit 8, a control tact signal is sent, and to the key 6, a syncing signal. The output signal of the decision block 8 closes the key 7 and sets the counter 9 to zero. The zero state of counter 9 corresponds to the open state of key 6, But since the key 7 is closed, the sync signal to the OR 10 element is not received. In this case, the control point and the controlled point are phased and the device operates in the transmission mode, information (normal mode). During non-phase-shift operation of the control point and controlled pusts, which is possible, for example, at the commutations of the distribution network 3, the signal analyzer 17 unlocks the control signal that closes the key 16. Thus, the clock pulses into the transceiver. unit 1 controlled item is not received. In this case, from the transmitting-receiving unit 1, a non-manipulated high-frequency signal is transmitted to the three-phase distribution network 3 through the matching unit 4. The decisive block 8 receives the high-frequency signal envelope and the control cycle signal from the transceiver transducer unit 2 of the control point. The decision block 8 issues a command to turn on the syncation mode, and the key 7 is opened. From the key 7 output, the unnumbered signal arrives at the input of counter 9 and the element OR 10. The sequence of sync pulses from the output of the element OR 10 is fed to the receiving and transmitting control input unit 2. From the output of the transceiver unit 2 of the control point, through the matching unit 5, the manipulated and nt.iroKC-frequency signal is transmitted to the three-phase distribution network 3. At the monitored point, an interchange signal is allocated in matching unit 4 and after processing in the hot-forwarding unit 1, the sequence of the in-phase pulses through the OR 18 element enters the signal analyzer 17, where they are compared with the clock pulses. The signal analyzer 17 outputs a switch 14 from the switch ramp. A corresponding phase is connected to the shaper 15 with a corresponding anapog key to compare the signal in the analyzer 17. Thus, one of the three phases of the distribution network 3 is selected. When the switch 14 is set to a position in which the required phase from the signal analyzer 17 is connected to the i 5 clock pulses, the control signal opens to the key 16. From the output of the key 16 on the receiving-transmitting unit 1 of the controlled point receives clock pulses. From the transmitting / receiving unit 1, the synchronizing and information signals are transmitted through the matching unit 4 to the three-phase network 3. At the control point, the decision block 8 generates a control signal that closes the key 7, sets the counter 9 to the zero state and returns the remote control and remote signaling device to its initial state for a certain time, 1x) to sync the control point and the control point; the acquisition of the common-mode does not reach, for example, due to the tightness of the communication canapa, from the counter 9 to the key 6 a control signal is received, which closes it, the transmission of the synthesis signal is stopped. Thus, in the inventive device, the synchronizing mode is performed only when the common operation of the control center and the controlled point is disturbed (when switching, the distribution network), which eliminates the influence of interference on the synchronization during the transmission of information, thereby increasing the reliability of the device. Claims of the invention The device for remote control and video signaling, the control unit and the control unit receiving and receiving units, connected through the corresponding matching power supply to the three-phase distribution network, in order to increase the reliability of the device, a decision block was entered at the control center; the counter, the OR element and the keys, the clock outputs of the transceiver unit are connected to the information Q

the input of the first key, the output of which is connected to the information input of the second key, the control outputs of the transmitting and receiving unit are connected to the input of the pern) unit, the output of the KOTojporO is connected 5 to the first input of the counter and the control input of the second key, which is connected to the first key, the input of the OR element and the second input of the counter, connected to the control input of the primary key, the code outputs of the receiving and transmitting unit are connected to the second input of the OR element, the output of which is connected to the controlling input of the receiving and transmitting unit On the controlled point, a switch, a signal analyzer, a clock pulse generator, an OR element and keys were entered, an information and synchronization output of the receiving and transmitting unit connected to the first and second inputs of the IL-1 output terminal which is connected to the first input of the signal analyzer, the first output of which is connected to the switch, the second output to the control input of the first key, the output of which is connected to the clock input of the receiving-transmitting unit, the outputs KOMMjrratopa connected to the control inputs of the corresponding -retarded second, third and fourth key data inputs coupled to an output of the matching unit, the outputs from the input of the clock pulse, the output of which is connected to the data input of the first switch and the second input of the signal analyzer.

Sources of information taken into account in the examination

1. Damhesho N.P. et al. Remote control equipment in the systems of supervisory control and control of coal mines. M., TsNEIUgop, 1975, p. 39

2.Demchenko N.P. et al. Tepmechanik equipment in the systems of dispatching control and management of coal mines,

M., TsNEIUgol, 1975, p. 53 (prototype).

Claims (1)

Claim A device for remote control and remote signaling, containing at the control point 7 744 705 8 The transceiver units connected to the three-phase distribution network through the corresponding matching units, sang at the controlled point, drank it by the fact that in order to $ 'increase the reliability of the device, a decision block was introduced into it at the control point; a counter, an OR element and keys, the clock outputs of the transceiver block are connected to the information input of the first key, the output of which is connected to the information input of the second key, the control outputs of the transceiver block are connected to the input of the deciding block, the output of which is connected 15 to the first input of the counter and the control input of the second switch, the output of which is connected to a first input of OR · th second input of the counter, the output of which is connected to the control input ₂ Gross carrying q th key code outputs transceiver unit Cpd enes to the second input of the OR gate, whose output is connected to the control input of the transceiver unit; at the controlled point 25, a switch, a signal analyzer, a clock driver, an OR element and keys, an informational and a synchronizing output of a transmitter-receiver unit are connected respectively to the first and second inputs of the OR element, the output of which is connected to the first input of the signal analyzer, the first output of which is connected to the switch, the second output - with the control input of the first key, the output of which is connected to the clock input of the transceiver unit, the outputs of the switch are connected to the control inputs of respectively the second, third and fourth key data inputs coupled to an output of the matching unit, the outputs from the input of the clock pulse, the output of which is connected to the data input of the first switch and the second input of the signal analyzer.