SU1251151A1 - Device for reception of telecontrol commands - Google Patents

Abstract

The invention relates to the field of automation and can be used to control the voltage of power transformers through remote control channels. The purpose of the invention is to increase credibility. Commands are transmitted in two cycles. In the first cycle, the command is transmitted by a direct code and is stored in the memory block. In the second cycle, the command is transmitted in the inverse code, and the B comparison block is compared with the command in the forward code received from the memory block. In the case of corresponding commands, the start-up unit and the synchronization unit permit the passage of a received command from the memory unit to the execution unit, on which a reset pulse is preliminarily generated. 1 hp f-ly, 1 ill. 1CHE SL

Description

The invention relates to automation and can be used to control the voltage of power transformers through remote control channels.

The purpose of the invention is to increase credibility.

The drawing shows the functional diagram of the device.

The device comprises a command receiving unit 1, a memory unit 2, a comparison unit 3.

The passage of the received command for execution in block 7.

In order to increase the reliability of operation of the telecontrol command receiving device, the executive unit 7 contains two groups of on-off, polarized relays. These relays have two windings. The first relay coils are paralleled and receive a reset signal from block 5. As a result, all relays occupy

commands, unit 4 start-up, unit 5 synchro-10 initial position for receiving a new infor15

the unit, the decoder 6 commands, the executive unit 7, the executive unit 7 contains the first and second groups of polarized relays and 9, -9k, groups of transistor switches Ift-10 and Hi-PC.

The device works as follows.

The control signal in the form of a six-bit binary code with a transceiver, its telemechanical unit 12 is fed to the command receiving unit 1. In order to increase the reliability of the received information, the transmission of commands is carried out in two cycles.

In the first cycle, the command is transmitted by a direct code with simultaneous transmission of the "Record" signal, by which a given command from the command receiving unit 1 is received in block 2, where it is stored.

In the second cycle, the command is transmitted by an inverse code, and from block 1 it goes to block 3 of the command comparison, where a bitwise comparison of the inverse code with the direct one is stored in memory block 2.

When the direct and inverse code match, the comparison unit 3 outputs a signal to the start unit 4.

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formations.

The decoder 6 commands consists of two (each for its own group of settings) bit multiplexers, which, depending on the command received from block 2 of the memory, give permission to trigger one electronic key from each group. As a result, they occupy a stable (operating) position with one relay in each group and close the corresponding contacts. Relay 8i-8k. controls the “Coarse Settings” controller, and the 9t-9k controller controls the “Exactly.

A "Start-up" signal on unit 4 is supplied from a remote control transceiver unit for a certain intermediate time, and then removed.

Block 5, having received a signal from the trigger block, becomes self-blocking at the time of receiving and processing the command. After the relay is cleared by Q, block 5 is unlocked and returns to its original position to receive new information. The signal from the second windings of the two triggered relays is removed, but they remain in the specified operating position and the contacts in the remote change circuit of the automatic controller settings are closed.

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To provide a short-term 35 (only for the period of receiving and testing a telecontrol command) operating mode of the device, which reduces power consumption, increases the reliability of operation and eliminates false positives, simultaneously with the command code, the signal "Start received from the receiving and transmitting remote control unit in block 4 start. This block, performed on the logic elements, when the start signal arrives at it and the signal about the reliability of the received command from block 3 starts the synchronization block 5 by applying a supply voltage to it.

Block 5 is a clock that provides synchronization

Block 5, having received a signal from the trigger block, becomes self-blocking at the time of receiving and processing the command. After the relay is cleared by Q, block 5 is unlocked and returns to its original position to receive new information. The signal from the second windings of the two triggered relays is removed, but they remain in the specified operating position and the contacts in the remote change circuit of the automatic controller settings are closed.

Claims (2)

1. A device for receiving telecontrol commands containing a command receiving unit, the first output of which is connected to the input of the memory unit, the first output of which is connected to the first input of the command comparison unit, the output of which is connected to the first input of the starting unit, the second output of the command receiving unit is connected to the second input of the command comparison unit, the second output of the memory unit is connected to the first input of the command decoder, the inputs of the input unit and the control of the entire operation of the device. The 50 m commands are the first inputs of the device. In case of a correct reception of the command command, characterized in that, in order to plow the control, the block 5 generates a valid signal, the block is entered into it Cash "Reception of information, incoming asynchronization and executive unit, control point. Simultaneously, the 5th inlet block of the starting block is connected to the input of the block generates a reset signal of the previous information synchronization, the first output of which is a submation, which enters the execution unit 7, and then generates a signal arriving at the decoder 6 commands and allowing 55 Key to the second input of the command decoder, the first and second outputs of which are connected respectively to the first and second The passage of the received command for execution in block 7. In order to increase the reliability of operation of the telecontrol command receiving device, the executive unit 7 contains two groups of on-off, polarized relays. These relays have two windings. The first relay coils are paralleled and receive a reset signal from block 5. As a result, all relays occupy starting position for taking a new in formations. The decoder 6 commands consists of two (each for its own group of settings) bit multiplexers, which, depending on the command received from block 2 of the memory, give permission to trigger one electronic key from each group. As a result, they occupy a stable (operating) position with one relay in each group and close the corresponding contacts. Relay 8i-8k. controls the “Coarse Settings” controller, and the 9t-9k controller controls the “Exactly. A "Start-up" signal on unit 4 is supplied from a remote control transceiver unit for a certain intermediate time, and then removed. Block 5, having received a signal from the trigger block, becomes self-blocking at the time of receiving and processing the command. After the relay triggers, unit 5 is unlocked and returns to its original position to receive new information. The signal from the second windings of the two triggered relays is removed, but they remain in the specified operating position and the contacts in the remote change circuit of the automatic controller settings are closed. Invention Formula 1. A device for receiving telecontrol commands containing a command receiving unit, the first output of which is connected to the input of the memory unit, the first output of which is connected to the first input of the command comparison unit, the output of which is connected to the first input of the starting unit, the second output of the command receiving unit is connected to the second input of the command comparison unit, the second output of the memory unit is connected to the first input of the command decoder, the inputs of the command receiving unit are the first inputs of the synchronization, the first output of which is under Key to the second input of the command decoder, the first and second outputs of which are connected respectively to the first and second the inputs of the execution unit, the second output of the synchronization unit is connected to the third input of the execution unit, the first and second outputs of which are respectively the first and second outputs of the device, the third output of the synchronization unit is the third output of the device, the second input of the startup unit is the second input of the device. 2. The device according to claim 1, characterized in that the executive unit contains the first and second groups of polarized relays, the first and second groups of transistor switches, the emitters of which are connected to the zero potential bus, the first terminals of the first and second windings of the first and second polarized relays groups are connected to the power bus, the second terminals of the second windings of each polarized relay of the first and second groups are connected to the collectors of the corresponding transistor switch of the first and second groups, respectively, whose bases are the first and second inputs of the execution unit, the second terminals of the first windings of the first and second polarized relays connected to the third input of the execution unit; the first terminals and interconnected second terminals of the closing contacts of the polarized relays of the first group are the first outputs The signals of the execution unit, the first and interconnected second conclusions of the closing contacts of the polarized relays of the second group are the second outputs of the execution unit.