SU378926A1 - DEVICE OF TELECOMMUNICATION - TELESIGNALIZATION - Google Patents

Description

one

The invention relates to remote control devices for power supply systems of electric railways and is intended for remote control of the converter station of the overvoltage power supply system.

Known tele-control devices are televisions that contain a high-frequency transmitter and receiver at the control room and controlled points, the outputs of which are connected to the communication line, the frequency selectors whose inputs are connected to the output of the high-frequency receiver, a tone generator, the output of which is connected to one of the inputs of the transmitter , circuits "AND-NOT, amplifiers, at the control room - a time sensor, one of the inputs of which is connected to a clock pulse generator, alarm triggers, one of the inputs to which Frequency control triggers, one outputs of which are connected to the tone frequency generator, the first inputs through the buttons are interconnected, at the controlled point - the delay line, the transmission trigger, the executive relays connected to the output of the frequency voters, the repeater contacts.

These devices are characterized by large capacity, continuous action, large

information flow and require individual communication channels.

The aim of the invention is to simplify and

improving the reliability of the device and

channel utilization efficiency.

This is achieved by the fact that at the control room the first output of the time sensor through the amplifier is connected to the receiver inputs and

the high frequency transmitter, the second output is connected to other inputs of the alarm trigger and to the second inputs of the frequency control trigger, the third output of the time sensor is connected to the third input of one of

frequency control flip-flops, and inputs to another output of the frequency-control flip-flops, the outputs of the alarm triggers are connected to the inputs of the first AND-NOT circuit, at the controlled point, the output of one of the

frequency voters and the contacts of the repeaters relay through the second circuit “AND –NAY are connected to one of the transmission trigger inputs, connected directly and through the delay line to the“ AND –NEA connected

to the outputs of the frequency voters and through the amplifier to the transmitter and receiver of high frequency.

FIG. 1 is a block diagram of a control tower; in fig. 2 is a block diagram of a controlled item. The dispatcher station (DP) contains buttons /, frequency control triggers 2, 3 tone frequencies generator, 4 clock pulses generator, time sensor5 / amplifier 6, RF transmitter 7, RF receiver 5, frequency selectors 9, alarm triggers Yu, AND-N control 11, signal lamps 12 and 13. The controlled point (CP) contains the contacts 14 of the repeater relay, the circuit “AND NOT start 15, the transmission trigger 16, the circuit“ AND-NOT transmission 17, the delay line 18, the pulse servo 19, the RF transmitter 20, RF receiver 21, frequency voters 22, executive relays 23, generator 24. Sending the commands “Enable, Disable or Control the attendant presses button 7. Trigger 2 triggers, generator 5 generates a signal of a given frequency, the carrier frequency signal of the transmitter 7 to the modulator. At the same time, time sensor 5 is set to /, blocked through amplifier 6 the receiver 8 and the transmitter 7 being turned on. When the time sensor moves to the // position, the transmitter 7 is locked, the receiver 8 is unblocked, the triggers 2 are reset, the triggers 10 are also reset, the lamps 12 go out. The health of the communication channel can be checked automatically. Under the influence of the generator 4, the sensor 5 is continuously switched. B. In position n, he switches trigger 2 controls, thereby transferring the command “Control. The duration of the transmission of commands is equal to the time the sensor 5 is in the position of / and is chosen so that the objects have time to switch. The interval between the automatic sending of the command "Control is determined by the time it takes the sensor to go through 5 polons. The signal TU arrives at the CP, is detected in the receiver 21 and through the selector 22 arrives at the relay 23, and the signal "Control - AND-NOT 15, triggers the vehicle. The launch of the vehicle also occurs when the state of objects is izgengey; switching kaptazstoz 14 triggers the circuit "AND-NOT 15, transmission trigger 16, circuit" AND-NOT 17, turning on the transmitter 20 and locking the receiver 21. At the same time, the LELTIE delay 18 is activated, after a specified time, the trigger 16 returns to its original position. Transfer of vehicle is terminated. In order to transmit a vehicle, it is necessary that the reception of the TU command is enriched. This dependence is realized by the connection of the outputs of voters 22 with the scheme "AND-NOT 17. The device can transmit signals" On, "Disabled and" Off; very bad, each signal has its own frequency of oscillators 24. On the AC, the signals of the vehicle are received through receiver 8, the selectors 9 on the trigger 10 and the lamp 12. In the event of a malfunction during the next monitoring, the vehicle signal will not come from the gearbox, the lamps 12 will remain dimmed, the PI-HE // circuit will operate and the lamp 13 will light up. , and due to the small volume Info svyzi channel busy fraction of the time. This creates conditions for using the channel for other purposes and reduces mutual influences on other communication channels. The subject of the invention is a remote control signaling device containing, at the control room and controlled points, a high frequency transmitter and receiver, the outputs of which are connected to the communication line, frequency selectors, the inputs of which are connected to the output of the high frequency receiver, a tone frequency generator, the output of which is connected to one of the inputs the transmitter, the circuit "AND-NOT, amplifiers, at the control room - a time sensor, one of the inputs of which is connected to a clock pulse generator, alarm triggers, one of the inputs in which are connected to the outputs of frequency voters, frequency control triggers, one outputs of which are connected to the tone frequency generator, the first inputs through the buttons are connected to each other, pa controlled by a trigger-line delay, transmission trigger, executive relays connected to the output of frequency voters, relay contacts Repeaters, characterized in that, in order to simplify and improve the reliability of the device in operation and the efficiency of communication, on the dispatch point, the first time sensor output through the amplifier is connected to the high frequency receiver and transmitter inputs, the second output is connected to other alarm trigger inputs and to the second frequency control trigger inputs, the third time sensor output is connected to the third input of one of the frequency control triggers, and inputs to another frequency control trigger output, the outputs of the signaling triggers are connected to the inputs of the first “AND –NE” circuit, at the controlled point, the output of one of the frequency voters and the relay contacts of the repeaters through the second “N – NO: connection} 1 odgpv with inputs from transmission trigger soedikepiogo neposredstvetstso and through a delay line with a circuitry "NAND connected to the outputs of the frequency of voters and through an amplifier to a high frequency transmitter and receiver.

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