SU1251148A1 - Device for transmission of information - Google Patents

Abstract

The invention relates to the field of telemechanics and can be used to control two-position objects. The purpose of the invention is to expand the functionality by introducing remote signaling functions. From the transmitting side, one of the phases of the three-phase AC source is transmitted to the receiving side by switching. Depending on the capacitance of the connected phase, a corresponding phase detector is turned on at the receiving side, which includes an actuating element. In this case, the remote signaling sensor is triggered and by its contacts it turns on the corresponding phase detector on the transmitting side, which turns on the indicator, indicating that the control command has been executed. 2 Il. i (lu sd 4 oo

Description

The invention relates to telemechanics and can be used to control two-position objects.

The purpose of the invention is to expand the functionality by introducing a remote signaling function.

FIG. 1 shows a functional diagram of the device; in fig. 2 - time diagrams of the change of phases A, B, C relative to the zero level "N and interphase

together with BC, which determines the output voltage of the detector, since the thyristor during the period of potential formation VA was maintained in the open state by a current determined by the potential of the aircraft. When connected to element 10, the level N (zero) detectors 12, 12, and 13j do not react to it, because due to the phase shifts A and B, the overlap of the potentials AN and BN is not enough to provide opening currents

voltages AB, BA, AC, C A, BC, CB, C-O thyristor, which are determined by the potentiopluent to the inputs of the phase detectors. The device contains on the transmission side a source 1 of a three-phase alternating voltage, an element 2 of isolation, phase

lam AN and BN and the value of resistor 18; detector 12 will not be able to turn on, because at any time the voltage at the anode-cathode junction is not enough

detectors 3i, Z., 3j and 3l ,, indicators 4., for self-opening of the thyristor 20, and its

4, 4j and 4 / ,, isolation element 5, control key block 6, lock key 7, load element 8, detector 9, receiver 10 and 11 isolation elements on the receiving side, phase detectors 12i, 12, 12 and 12., the actuating electrode is mounted on the zero level N.

When the power is connected (phases A, B, C, N), all detectors remain unconnected, since the second wire of the communication line is fan elements 13i, 132, 13z and 13, the source is 14 ° connected and connected

three-phase alternating voltage, detector 15, load element 16, block 17 tele-alarm sensors.

Each phase detector 3i-3 and 12i-12, contains a resistor 18, a diode 19 and a thyristor 20.

The device works as follows.

The combination of connecting phases A, B, C to the second and third inputs of the phase detectors determines which phase entering each of the first inputs each detector should respond to, since depending on this combination, the three thyristors from the four electrodes are short-circuited. For example, when connected to the phase isolation element C, only detector 12i is turned on, phases A and B are connected to the second and third inputs, the detector anode-cathode of the thyristor 20 is shorted for detector 122, and the detector of the first mode of operation for detector 12e N, and the N level is connected to the first wire of the communication line through the block of 17 sensors. When the switch is turned on (the fourth in the control key block 6) of selecting the first mode of operation, the N level is disconnected from the isolating element 2 (if the requirements of the specified conditions of the blocking key 7, i.e., the circuit controlled by this switch, are opened), since the first

30, the input of detector 12 is connected to phase C permanently, the latter is turned on while disconnecting the N level from the first wire of the communication line, which turns on detector 3, since its first input is permanently connected to phase C.

35 Connection to the element 10 of the phase A or B output of both (combination of operations) with the buttons of the control key block 6 includes detectors 12 A or 12 C, which include the corresponding actuators

Thyristor type 20, detector 12 has a 13g or 13 circuit. This causes the co-control electrode to be connected to the cathode circuit of the thyristor 20, and the detector 12 will begin to form potentials between the inputs: a positive potential of the AC is applied between the first and second inputs of the thyristor electrode 20, between the third and first inputs with a shift determined by the phase shift A, B and C, the positive potential of the VS applied to the anode-cathode of the thyristor is formed, and since the potentials AC and BC sufficiently overlap each other and the magnitude of the resistor 18 provides the opening current, the thyristor 20 will open and be maintained in the open state of the anode-cathode circuit through the resistor 18 (as the AC potential decreases to zero) between the third and second inputs with a shift defined by By phase shift B and A, potential B A is formed,

sticking the corresponding sensors of the tele-alarm system of unit 17 and connecting to the first wire of the communication line of phase A or B, respectively, with this.m, the detector Z or Z operates on the transmitting side,

45 signaling on the indicators 4 or 4zO command reception. The connection to the receiving side of phase C with block 6 turns on detector 12- and turns off detector 12 ;, which selects the first mode of operation. In this case, block 17 connects phase C to the isolation element 11, which turns on detector 3 and turns off detector 3 ;. Turning off, the actuator 13l causes a 6viok 17 to connect the zero level N to the element 11, which additionally blocks the switching of the detector 3 ;. The switched on detector 3 by means of the blocking key 7 connects to the second wire of the communication line a zero level N, additionally blocking

50

together with BC, which determines the output voltage of the detector, since the thyristor during the period of potential formation VA was maintained in the open state by a current determined by the potential of the aircraft. When connected to element 10, the level N (zero) detectors 12, 12, and 13j do not react to it, because due to the phase shifts A and B, the overlap of the potentials AN and BN is not enough to provide opening currents

 thyristor, which are determined by the potentirist, which are determined by the potentials AN and BN and the value of the resistor 18; detector 12 will not be able to turn on, because at any time the voltage at the anode-cathode junction is not enough

the control electrode is mounted on the zero level N.

When the power is connected (phases A, B, C, N), all detectors remain unconnected, since the second wire of the communication line is connected and connected

the switch of the first mode of operation is level N, and the level N is connected to the first wire of the communication line through a block of 17 sensors. When the switch is turned on (the fourth in the control key block 6) of selecting the first mode of operation, the N level is disconnected from the isolation element 2 (if the specified conditions of the blocking key 7, i.e., the circuit controlled by this key are open, are met), and so like first

the input of detector 12 is connected to phase C permanently, the latter is turned on while disconnecting the N level from the first wire of the communication line, which turns on detector 3, since its first input is permanently connected to phase C.

Connection to element 10 of phase A or B both (combination of operations) with buttons of the control key block 6 includes detectors 12 a or 12 h, which include the corresponding actuators

elements 13g or 13. This causes the elements 13g or 13 to trigger. This triggers the corresponding sensors of the tele-alarm system of unit 17 and connects to the first wire of the communication line of phase A or B, respectively, the detector Z or G triggers on the transmitting side

45 signaling on the indicators 4 or 4zO command reception. The connection to the receiving side of phase C with block 6 turns on detector 12- and turns off detector 12 ;, which selects the first mode of operation. In this case, block 17 connects phase C to the isolation element 11, which turns on detector 3 and turns off detector 3 ;. Turning off, the actuator 13l causes a 6viok 17 to connect the zero level N to the element 11, which additionally blocks the switching of the detector 3 ;. The switched on detector 3 by means of the blocking key 7 connects to the second wire of the communication line a zero level N, additionally blocking

50

the inclusion of the detector 12, i.e. when disconnecting from the second wire of the phase C communication line, detector 12 does not turn on until detector 3, controlled by detector 12 i, turns off.

Thus, when phase C is disconnected from element 10, detector 12 /, (switching on the first operation mode) is turned on with a time delay determined by the time the detector 12 is turned off, the time of the actuator 13 is turned off, the sensor 17 is activated, the detector 3 is turned off off time with key 7. N level locks from element 10 of the isolator.

Claims (1)

Invention Formula A device for transmitting information, comprising on the transmitting side a control key block, on the receiving side — the first, second, third and fourth actuating elements, the first, second, third and fourth phase detectors, each of which contains a diode and a resistor, characterized in that in order to extend the functionality by introducing a remote signaling function, the first, second decoupling elements, the lock key, the first, second, third and fourth phase detectors, a three-phase source are entered into it on the transmitting side. alternating voltage, first, second, third and fourth indicators, detector, load element, a thyristor whose cathode is connected to the diode anode and the first output of the resistor is inserted into each phase detector of the receiving and transmitting sides; the first drive of the communication line is connected to the transmitting side with the input of the first element of the isolation, the first, second, third and fourth outputs of which are connected to the second terminals of the resistors of the first, second and third phase detectors, respectively, and to the control electrode of the fourth thyristor phase detector, cathodes of diodes of the first, second, third and fourth phase detectors are connected to the first terminals of the first, second, third and fourth indicators, respectively, the first bus of the three-phase voltage source is connected to the first input of the key block of the third phase detector, to the first output of the load element, to the control electrode of the thyristor of the first phase detector and to the second conclusions of the first and fourth indicators, the second bus of the three-phase voltage source inena to a second input of the control keys, to the anode of the thyristor of the fourth and first phase detector to the control electrode of the thyristor of the second phase detector and a second the output of the second indicator, the third bus of the three-phase voltage source is connected to the third input of the control key block, to the cathode of the detector, to the control the thyristor electrode of the third phase detector, the thyristor anode of the second phase detector and the second output of the third indicator; the fourth bus of the three-phase voltage source is connected to the fourth input of the control key block; the cathode of the first phase detector's diode is connected to the fifth control key block inputs whose outputs are connected to the corresponding inputs The second isolation element, the output of which is connected to the second wire of the communication line, the second output of the load element is connected to the control electrode of the thyristor of the fourth phase detector, the anode of the detector is connected to the second output of the fourth phase resistor, the first and second elements are inserted on the receiving side sensors, a load cell, a remote signaling sensor unit and a three-phase alternating voltage source, The second wire of the communication line is connected to the input of the first isolation element, the first, second, third and fourth outputs of which are connected to the second terminals of the resistors of the first, second and third phase detectors respectively and to the control electrode of the fourth phase detector, the first and second cathodes of the diodes , the third and fourth phase detectors are connected to the first terminals of the respective actuators, the first bus of the three-phase alternating voltage source 5 is connected to the control electrode of the thyristor of the first phase detector, the anode of the thyristor of the third phase detector, to the first output of the load element, to the second terminals of the first and fourth executive elements and to the first input of the sensor signaling unit, the second bus of the three-phase alternating voltage source is connected to the anodes thyristors of the first and fourth phase detectors, to the control electrode of the thyristor 5, the second phase detector and the second output of the second actuator and to the second input of the remote signaling sensor unit; the third bus of the three-phase alternating voltage source is connected to the anode of the thyristor of the second phase detector, to the control electrode of the thyristor of the third phase detector, to the cathode of the detector, to the third input of the unit sensors of the telealarm and with the second output of the third actuator, the fourth and the three-phase alternating-voltage source bus is connected to the fourth input of the unit tchikov telesignalization whose outputs are connected with the corresponding the inputs of the second element of the isolation, exit detector, the second output of the element which is connected to the first wire of the load connected to the control of the communication line, the anode of the detector is connected to the nature of the thyristor of the fourth phase detector the second output of the resistor of the fourth factor. SAVSAVSAVSAVSAV LLLAALLALLALLALL ABCA8Cfl dCABCABC