SU472361A1 - Telemechanic device - Google Patents

Description

The invention relates to a telemechanic device with a time division of signals synchronized from a single power supply network and cyclic syncing.

Time-separated telemechanic devices are known that use a single power supply network as a clock pulse generator - control point distributors (PU) and controlled points (KP), containing linear nodes and pulse distributors at the transmitting and receiving devices.

However, the operation of such devices is impossible at a certain angle of misalignment of the phases of the supply voltage at the points of connection of the remote control devices PU and KP; The permissible phase mismatch of the supply voltage is 20 °. Such a supply voltage shift is sometimes difficult to achieve due to the dependence of the phase angle on the operation mode of the power supply network.

The purpose of the invention is to reduce the effects of phase mismatches of voltages in the power supply network at the connection points of the telemechanics devices of the transmitting apparatus and the receiving apparatus to the operation of the telemechanics device.

This is achieved by the fact that in the proposed device, the receiving apparatus is equipped with a high frequency pulse shaper and an additional distributor, the high frequency pulse shaper input is connected to the power supply network, and the output is connected to the additional distributor input.

the output of which is connected to the input of the main distributor, and the installation inputs of both valves are connected to the output of the linear node.

The drawing ;; e shows the block diagram of the proposed remote control device.

The proposed telemechanic device contains on the transmitting device a driver 1 clock pulses, the input of which is connected to the power supply network, and the output - with

the input of the distributor 2, the outputs of which are connected to the control unit 3 and the alarm unit 4. The first output of the distributor 2 is connected to the transmitter 5 of the synphating pulse, which once in a cycle generates synphonic pulses entering the communication line 6. The outputs of the control block 3 are connected with a command transmitter 7 generating control signals arriving in the communication line 6. Signal unit 4 input

connected to the output of the alarm receiver 8, the input of which is connected to the communication line 6. On the receiving device to the communication line 6 are connected the inputs of the command receiver 9, the receiver 10 of the sync emution and the output

alarm transmitter 11. One network

power supply is connected to a high frequency pulse shaper 12, the output of which is connected to an additional distributor 13. The first output of the additional distributor 13 is connected to the input of the main distributor 14, and the installation inputs of both distributors are connected to the output of the synphating pulse 10. The outputs of the main distributor 14 are connected to the alarm sensors 15 and the control unit 16. The input of the control unit 16 is connected to the output of the command receiver 9, and the output of the alarm sensor 15 is connected to the input of the alarm transmitter I. The outputs of the control unit 16 are connected to the control objects 17.

The remote control device works as follows.

At the transmitting device, the pulses with the frequency of the first harmonic of the unified power supply network from the output of the pulse generator 1 are fed to the input of the distributor 2, which distributes them at individual prices. The signal from the first output of the distributor 2 is fed to the input of the transmitter 5 of the synphating pulses, which generates synphasizing pulses of duration equal to one period of the frequency of a single network transmitted to the communication line 6.

These pulses are received by the pulse receiver 10 in phase, at the output of which a signal appears that sets the distributor 14 to the state corresponding to the state of the distributor 2, and the additional distributor 13 to the first state. Frequency pulses of a single power supply network are fed to the input of a high frequency 12-pulse generator, which produces the formation of a high-frequency pulse that is a multiple of the main frequency of the supply voltage of a single power supply network. These pulses are fed to the input of an additional distributor 13, whose capacity is equal to the number of high frequency pulses that fit into one period of the main frequency of the single power supply network. Prior to the end of the synphating pulse received by the receiver 10 of the synphating pulse, a signal from the output of the receiver of the synphase pulse is present at the installation inputs of the additional distributor 13, and the distributed pulses not received from the high frequency pulse generator 12 occur. After the termination of the synphating pulse, the signal at the output of the sncephase pulse receiver disappears, and the additional distributor 13 starts operation from the first pulse received at its input from the output of the high-frequency pulse shaper after the synphase pulse ends. At the same time, at its first output, a signal is generated, which is fed to the input of the main distributor 14. Signals at the first output of the additional distributor 13 appear every time after an initial cycle of its operation; since the capacity of the additional distributor 13 is equal to the number of pulses generated by the shaper 12 high frequency pulses during one period of the main frequency of the single power supply network, the signal at the first output

0 of the additional distributor 13 appears with a frequency equal to the frequency of the unified power supply network. In this case, the phase shift between pulses that are not available on the input of the distributor 2 and of the distributor 14 is determined by

5 without taking into account the shift introduced by the communication line, only by the ratio of the frequency of the pulses formed by the high frequency pulse shaper and the frequency of the common power supply network, i.e.

0 please small. Cyclic adjustment of the phases of the pulses fed to the input of the distributor 14 using the pulse sync makes the operation of the telemechanics device independent of changes in the network operation mode

5 power supply.

Subject invention

A telemechanic device containing linear nodes and pulse distributors at 0 transmitting and receiving devices, characterized in that, in order to increase the reliability of the device in operation, the receiving device is equipped with a higher frequency 5 driver and an additional distributor, the higher frequency impeller input is connected to the power supply network and the output - to the input of the additional distributor, the first output of which is connected to the input of the main distributor, and the installation inputs of both distributors us to the output of the line node.

-50l

50g.