SU830487A1 - Remote control and indication device - Google Patents

Description

(54) DEVICE OF TELEVISION AND TELESIGNALIZATION

channel switch connected to the second inputs of the first switching unit.

The drawing shows a block diagram of the proposed device.

The device comprises a channel switch 1, a first switching unit 2, a decoder 3, a delay unit 4, controllable transmitters, a telecontrol unit 6, a second switching unit 7, a tele-alarm unit 8.

The device works as follows.

In the initial position, the remote control channel 10 through the switch 1 channels connects to the input of the remote control unit 6, and the output of the remote signaling unit 8 is connected to the remote signaling channel 9; the radio transmitters 5 are turned off, signaling about this from the radio transmitters 5 via the second switching unit 7, the television signaling unit 8, the channel switch 1 is fed to the television signaling channel 9 and to the control room. The transmission cycle of the remote signaling signals is determined by the number of controlled radio transmitters 5.

When the “Decentralized control” command is received, the signal goes to the decoder 3, from the first output of which a code message is sent to the first input of the first switching unit 2, which connects each information channel 11 to the corresponding (fixed) radio transmitter 5.

When you select the Select Object (for example No. 1) command, the decoder 3 outputs a control signal to the second switching unit 7, which connects the control circuit of the selected radio transmitter 5 (No. 1) to the corresponding chain (No. 1) of the remote control unit 6, and signaling circuits - to the corresponding circuit (No. 1) of the remote signaling unit 8, from whose output through switch 1 via channel 9 of the remote signaling system to the control room.

When receiving a command to rebuild the radio transmitter 5 (for example, No. 1), it goes via the remote control unit 6 directly to the selected object.

The signaling signal that the selected radio transmitter 5 (No. 1) is turned on at the working frequency is transmitted via channel 8 of the tele-alarm system to the control center, where the terminal equipment is connected to the selected information channel 11 and information is exchanged.

If it is necessary to transfer the selected radio transmitter 5 (No. 1) to the spare fixed frequency, a remote control command is sent. Radio transmitter 5 (No. 1) "Turn off, which goes through the remote control block 6 to the delay block 4, which turns off the transmitter 5 (No. 1).

Next, the selected radio transmitter 5 (No. 1) is transferred to a spare fixed frequency, it is put back into operation (including high voltage by the High command and connecting the output device by the Radiation command), and the information exchange is continued. Upon completion of the work, a command is sent to the telecontrol unit 6 to turn off the radio transmitter 5 (No. 1). This command, via a delay block 4, is sent to transmitter 5 (no. 1), which turns it off. Information that the transmitter 5 (No. 1) is turned off comes from transmitter 5 (No. 1) via the second switching unit 7, the remote signaling unit 8, the switch 1 via channel 9 to the control room. After completion of the operation, the device returns to its original state, as described above.

When the command "Centralized control" arrives, this command goes to the remote control unit 6 and then to the decoder 3 and the first switching unit 2, where all the radio transmitters 5 are connected to the same information channel 11.

Next, make the selection of operating frequencies. When the command "Switch on the radio transmitters from the telecontrol unit 6 to the 5th delay block 4 is received, the control signal is received, according to which the block 4 switches on the selected transmitters 5.

The TV signaling of switching on the transmitters comes through the second switching unit 7 and the remote signaling unit 8, switch 1 and channel 9 to the control room, where they connect the terminal equipment to the information channel and begin transmission.

The radio transmitters 5 are turned off in the same way as described for one object. The difference is only in giving commands to all radio transmitters and the turn-off signals come from all radio transmitters. After shutdown, the device returns to its original state. 0 When giving a command about the need for session radio communication, the code arriving at the telecontrol unit 6 contains additional information about the number of saens, interruptions, the duration of each session of interruptions, the duration of each communication session, the time of switching on and off of radio transmitters 5.

This command is decrypted by block 6, issued to delay block 4 and stored in it, after which, according to a predetermined sequence diagram 50, the sessions are switched on, switched off and held.

Upon execution of the cyclogram. The device again, in a similar manner, returns to the initial state.

The use of the proposed device 55 makes it possible to significantly reduce the hardware of the telemechanics. With the presence of ten radio transmitters and the transmission of TU-TC commands at a speed of 1200 B, the telemetry instrumentation is reduced by more than eight times (compared to individual telecontrol remote control).

Claims (2)

1. USSR author's certificate number 551685, cl. G 08 C 19/28, 1975. 2. USSR author's certificate No. 562847, cl. G 08 S. 15/06, 1976 (prototype).