SU581485A1 - Device for monitoring automatic control objects - Google Patents

Description

(54) DEVICE FOR CONTROL OF AUTOMATIC OBJECTS

The proposed device relates to railway automation and remote control and can be used to monitor and early diagnose failures of elements of automatic blocking, track circuits, electrical interlocking and other objects.

A device for monitoring the state of objects of self-blocking and electrical interlocking is known, comprising a transmitter with a master oscillator and distributors connected to the phase rotator of each transmission channel consisting of measurement blocks of parameters of co-controlled objects connected by outputs to a reference unit, at the output of which the phase rotator is turned on through the switch, a receiver with a multiplier and a frequency divider connected to the phase shifter of each receive pot, the output of which is connected to a phase detector connected threshold elements connected to the recording unit 1).

Such devices allow the transmission of the state of monitored objects from signal points to a station and a central post. The transmission is carried out by amplitude manipulation of signals of a certain frequency.

The amount of information transmitted from the objects of the unit, and their state is transmitted

on the recording device in a non-explicit form and requires additional logical processing. Another disadvantage of the device is the lack of constant control over the nominal and iminal parameters of the co-controlled objects and the low reliability of the transmission.

The purpose of the invention is to expand the functional capabilities of the device and increase its reliability in operation.

To do this, in the proposed device, the transmitter contains a clock synchronization unit connected to the output of the master oscillator and the distributor input, and the receiver contains a correction unit connected to the phase detector of each information receiving mode and frequency divider.

FIG. I and 2 are the daiy structures of the transmitter and receiver of the device for monitoring automation objects.

The transmitter (Fig. 1) contains the master

generator I, block 2 clock synchronization,

distributor 3 connected to channels

4.1-4.P, each of which has an input

unit 5 connected to measurement units 6 and 7

parameters, soydiyeyny exits with the block

8 comparisons, at the output of which through the key

9 phase shifter 10 turned on, two matching

block I and 12. Controlled objects, odd 13. I -13. To and even 14. 1 - 14.p, connected to X input blocks of 5 channels 4.

Receiver (fng. 2) contains a kit matching unit 15. connected to a frequency multiplier 16, divider 17 connected to corrective block 18 and to channels 19. 1–19.p, each of which has a phase detector 20 connected to a phase shifter 21 , and through the threshold elements 22, 23 - with the recording unit 24.

Monitored objects 13.1 - I3.K and 14.1 - 14.n are connected via blocks 5 and 5 to blocks 6 and 7, which measure the parameters of the objects and act through the comparison block 8 on the key 9. If the parameters of the object to be contacted are within the specified limits, the key 9 connects the phase shifter 10 to the input of the matching unit 12. Otherwise, the circuit between the phase shifter 10 and the matching unit 12 is open. Thus, key 9 transmits information about the limiting parameters of objects being tested.

Information on the parameters of monitored objects is transmitted using phase-shift keyed signals with their subsequent synchronous detection in the receivers.

The reference signal of the receiver (Fig. 2) is generated using a frequency multiplier 16 and a frequency divider 17 and through the corresponding phasers 21 arrives at the inputs of the corresponding phase detectors 20, channels 19. Phase detectors 20, equalizing the phases of the signals coming from the matching unit 15 and phase shifters 21 , generate signals that through the threshold device 22 and 23 are fed to the recording device 24.

In order to eliminate the phenomenon of reverse operation, the sync signal is extracted, and through the correction unit 18, the output signal of the divider 17 is phased accordingly.

The proposed device makes it possible to make early diagnostics of failures, makes it possible to reduce the number of damages to railway automation devices, to reduce downtime and improve the safety of their movements.

Claims (1)

Invention Formula Device: 1 to control objects of automation, for example, railway, containing a transmitter with a master oscillator and a distributor connected to the phase shifter of each transmission channel consisting of measurement units of parameters of controllable objects connected by outputs to the unit Comparison at the output of which a phase shifter is turned on via a switch, a receiver with a multiplier and a frequency divider connected to the phase shifter of each receive channel, the output of which is connected to a phase detector connected to threshold elements connected to a registering unit, in order to increase reliability the device in operation, the transmitter contains a clock synchronization unit connected to the output of the master oscillator and the distributor input, and the receiver - the correction unit, connected to the phase detector of each channel receiving information and the frequency divider. Sources of information, / | rin tye in heed during the examination: if. Sharikov V. A., Ebel I. I. Frequency Dispatch Control, M., “Transport, 1969, p. 10-13, 89-101.