SU317093A1 - DEVICE FOR TELECOMMUNICATION AND TELESIGNALIZATION WITH ALL-UNION PAY-TECH1 {51 '^ [SHY1 | LIBRARY - Google Patents

Description

This invention relates to the field of telemechanics.

Telecontrol and remote signaling devices are known, which include dispatching and controlled stations with linear transmitters and receivers connected to a communication line, drivers that have outputs connected to the inputs of transmitters, amplitude discriminators whose inputs are connected to outputs of linear receivers, discriminators of the duration of signal pulses, trigger inhibitor, distributor, distributor start-up unit, phase-shifting unit, one of the inputs of which is connected to the output of the clock generator, c We lock, and each controlled point - discriminators sinfaziruyuschih duration and cycle pulses trigger and resolution counter.

In the proposed device, in order to increase reliability in its operation, at controlled points, the output of the discriminator of the duration of cyclic pulses is connected to one of the inputs of the enable and disable triggers and to the reset input of the counter, the output of the discriminator of the duration of the first-pulse pulses starting the distributor, two other inputs of the starting circuit of the distributor are connected to the outputs of the counter and clock generator, the discriminator output of the signal impulse ov is connected to one of the inputs of the phase-shifting unit, the other input of the phase-shifting unit is connected to the output of the blocking circuit, the output of the enable trigger is connected to the inputs of the discriminator of the duration of signal and synphating pulses,

the output of the counter is connected to the input of the discriminator of the duration of the signal pulses.

The drawing shows a functional diagram of the device.

It contains at the control point (DP) and at controlled points (CP) linear transmitters 1, linear receivers 2, drivers 3 and 4, amplitude discriminators 5, discriminators of duration of signal pulses 6, prohibition triggers 7, distributors 8, blocks of starting distributor 9, phase-shifting blocks 10, blocking circuits 11, 12 and 13, clock generators 14, coincidence circuits 15 and 16, executive relays 17, executive blasts 18 and keys 19.

In addition, at monitored points, the device contains counters 20, resolution triggers 21, discriminators, and duration-cycle duration-cycle pulses 23.

The pulse distributor on the DP continuously generates, through the distributor, the cyclic pulse series. The distributor start-up unit at the beginning of each cycle automatically launches the distributor, which successively switches its cells under the influence of a clock generator operating from a 50 Hz mains supply.

The output pulses of the distributor go to the driver and then to the linear transmitter, which represents the thyristor relay, which in turn sends the pulses of a given level to the communication line.

In this case, the pulses that are sent to the communication line have a duration equal to or a multiple of the half-periods of the mains voltage. This is achieved by switching on the linear Transmitter with impulses from the distributor corresponding to positive half-periods, and switching off from the cells corresponding to negative half-periods.

At the beginning of each cycle of the work of the distributor, a pulse is sent to the communication line that differs from all other ones by the longest duration - a cyclic pulse. With this impulse, all KPs are brought to their initial state. Next, a first synphating pulse is sent to start the KPI distributor. After it, a series of command pulses can be sent to the communication line, each of which has a minimum duration and corresponds to positive half-periods. These parcels are not intended for the transmission of control commands to the control station and can be carried out if the operators include the corresponding command keys. After working off the part of the distributor, intended for the formation of commands sent to the CP |, a second wide synphating impulse is sent to the communication line, designed to start the CNG. Then a second series of command pulses can be sent to the communication line, similar to those sent after the first wide pulse. This second pulse train is designed to transmit control commands to KP2. All impulses sent from the PD receive the linear receivers of the controlled points. With the help of level discriminators and discriminators of duration, the uROVN is checked and then the duration of the pulses received from the communication line.

The cyclic pulse selected in each cycle performs a control reset of the in-pulse counters and enables the enable trigger and the ban on the reception of subsequent pulses.

dividers launch the latter at the required points in time. Thus, the counters are elements that select the address of sending and forwarding instructions. After starting the appropriate distributors, the latter switch their cells siphropno with the distributor DP. This is achieved by feeding the circuits of the movement of pulses from the same network of irregular current by means of clock generators.

The command pulses sent from the PD receive the phase diagram of the phase-shifting unit, which prepares them for a temporary coincidence. Further, preparative impulses arrive at the coincidence circuit.

in the case of coincidence in time of the command pulse coming from the PD with the pulse of a certain distributor cell, the corresponding executive relay, switching actuator (electromagnetic relays, contactors, contactless circuits) are turned on.

The executive relay is reset by a similar coincidence circuit, triggered on the condition that it arrives at it at a certain moment of time from the distributor and stops the arrival of the command pulse DP. Sending the signaling impulses from the CP to the DP in the opposite direction is similar to sending command pulses.

Thus, the sending of command and signal pulses in the communication line is interleaved.

Subject invention

A device for telecontrol and remote signaling, which, at the control room and monitored points, contains linear transmitters and receivers connected to the lines. ban, distributor,

the distributor triggering unit, the phase-shifting unit, one of the inputs of which is connected to the output of the clock generator, the blocking circuit, and at each controlled point - the discriminators. The synchronizers of the common and cyclic pulses, the resolution trigger and the counter, characterized in that increase the reliability of the device, in it on controlled pupkts output dpcriminator duration

cyclic pulses are connected to one of the inputs of the enable and disable triggers and to the reset input of the counter, the output of the discriminator of the duration of the synphating pulses is connected to the input of the counter and with (day

other inputs of the distributor start circuit are connected to the outputs of the counter and the clock generator, the output of the discriminator of the duration of the signal pulses is connected to one of the inputs of the phase-shifting unit, the other input of the phase-shifting unit

Connected to the output of the blocking circuit, the output of the enable trigger is connected to the inputs of the discriminator of the duration of the signal and synphating pulses, the output of the counter with the input of the discriminator of the duration of the signal pulses.