SU1283983A2 - Device for remote monitoring - Google Patents

Abstract

The invention relates to telecommunications and is an improvement of the invention in an. No. 873424. The purpose of the invention is to increase the accuracy of the control. The device contains at the terminal transmitting point 2 a receiver 3 telecontrol signals, filters 4, amplitude detectors 5, binary counters 6, shaper 7 reset signals, a parallel-serial converter 8, and an indicator 9. In each regeneration signal (RP) 10 contains a failure detector 11, a key 12, a generator 13, a p-position frequency manipulator 14 connected to the output of the regenerator 15, an input amplifier 17, an output amplifier 18, selectors. Pulses 20, 28, elements OR 21, 27, an inverter 22, sawtooth generator ( GPN) 23, threshold block 24 and single-stable multivibrators 25, 26. A quasitromatic signal with alternating polarity of pulses arrives via transmission line 16. Detection of failures, expressed in excess of the module of the algebraic sum of linear signal symbols or in the appearance of pauses with a duration exceeding the normalized, is performed in each TL 10 and at the final receiving point 1; At the time of registration of failures, the telecontrol signal through the switch 12 and the amplifier 18 enters the telecontrol line 19 and further to the receiver 3 telecontrol signals. 1 il. (L with N5 eo: o eo & 9 1H

Description

The invention relates to telecommunications, can be used to control the linear paths of digital transmission systems (DSP) information, and is in addition to the main author. No. 873424.

The purpose of the invention is to increase the accuracy of the control.

The drawing shows a structural electrical circuit of a remote control device.

The remote control device contains, at the terminal DSC transmitter terminal 2 connected to the final receiving point 1 DSP receiver 3 telecontrol signals, filters 4j amplitude detectors 5, binary counters 6, shaper 7 reset signals, parallel-to-serial converter 8, indicator 9, and at each regeneration point 10 there is a fault detector 11, a key 12, a generator 13, a p-position frequency manipulator 1A connected to the output of the regenerator 15 connected to the transmission line 16, an input amplifier 17, an output amplifier 18, connected to the remote control line 19, the first pulse selector 20, the first element 21, the inverter 22, the saw-tooth voltage generator (FPG) 23, the threshold unit 24, the first and second single-stable multivibrators 25 and 26, the second element OR 27, the second selector 28 pulses.

The device works as follows

In the case of monitoring a linear path of a DSP using a quasi-troich (three-level) signal with alternating polarity of pulses, the detector 11 for faults of a quasi-trivial signal reacts to faults leading to an increase in the magnitude of the linear signal sum modulus. The principle of operation of such detectors is known

walls and is widely used in various devices and systems of technical diagnostics of the linear path.

A circuit consisting of functional blocks 17–25 and 28 serves to detect pauses of a linear signal with a duration exceeding the normalized one. A quasi-linear linear signal from the output of the regenerator 15 enters the input of the amplifier 17c times

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the divided load, from the first output of which the inverted (inverted) linear signal is taken, and from the second - the non-inverted signal. Both signals are then fed to pulse selectors 20 and 28, which separate the positive polarity pulses from the three-level signal. Both sequences of positive pulses are combined by the first element OR 21, and the total pulse sequence is fed to the inverter 22, the function of which is the inversion of the signal polarity, whereby all pauses, i.e. signal regions with a level of O are converted into positive pulses with a level of 1.

The pulses from the output of the inverter 22 are fed to the input. The start of the FPG 23. The overrun of the output voltage of the FPG 23 occurs at the moments of the supply of positive triggering pulses to its input. After the termination of the triggering pulses, the output voltage of the FPG 23 drops to zero. Thus, the amplitude of the sawtooth voltage is directly proportional to the duration of the trigger pulses. For starting pulses with a duration exceeding a predetermined amplitude of the output signal of the FPG 23 exceeds a certain value. The threshold unit 24 connected to the output of the FPG 23 produces

5 selection of output pulses of HPN 23 with amplitude exceeding the normalized. The output pulses of the threshold unit 24, with a significant variation in duration, arrive at the trigger input of the first single-stable multivibrator 25. The latter generates pulses with a given amplitude and duration. The second one-stable works in a similar way.

 multivibrator 26, which generates pulses with the same parameters in the case of the launch of an error-triggering 11 faults, the signals from the outputs of one-stable

0 multivibrators 25 and 26 are summed by the second element OR 27 and are sent to key 12. Detection of failures expressed in excess of the module of the algebraic sum of linear signal symbols or in the appearance of pauses with a duration exceeding the normalized one is performed in the control station 10 and terminal

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receiving point 1. The p-Position frequency manipulator 14, the generator 13 and the key 12 form a telecontrol signal - l, which is a sinusoidal oscillation with a frequency determined by the number of the regeneration point, having pauses of a given duration, formed at the moments of failure recording. From the output of each key 12, the signal through the output amplifier 18 enters the remote control line 19 and to the receiver input 3 telecontrol signals included in the final transmitting point 2. Received telecontrol signals are asserted by filters 4, detected by a pound detectors 5 and processing binary counters 6, forming

Remote control device for auth.st. No. 873424, characterized in that, in order to improve f5 sheno; accuracy of control, serially connected input amplifiers, the first pulse selector, the first OR element, the inverter, gene pulses, which are then fed to the parallel-serial conversion, are introduced at each regeneration point - 20 rarator of sawtooth voltage, driver 8 and horn block on shaper 7, and the first one-stable reset, which after the end of the signal-processing cycle, the telecontrol, which consists in counting the number of failures

The result of comparing the result with the normalized, 25th input of the first OR element, a chain variable, results in binary counts from a series of connected 6 sensors and a parallel-sequential single-stable multivibrato converter 8 to the initial state. Parallel-sequential

Converter 8 converts p-30 and the first key input, and the output pulse sequences carrying the amplifier, connected between the output information on the status of n regenerative line sections, into a single signal whose parameters meet the standards.

multivibrator, the second pulse selector connected between the other output of the input amplifier and the second

RA and the second element OR, between the output of the fault detector

key and the corresponding input of the remote control line, and the input of the amplifier is connected to the output

The lagged device can also be used to monitor a linear path of a circuit using a monopulse or relative monopulse linear signal, while its failure is detected by registering pauses longer than the normalized one.

Claims (1)

10 claims Remote control device auth.St. No. 873424, characterized in that, in order to increase the accuracy of the counter, at each regeneration point, serially connected input amplifier, the first pulse selector, the first OR element, the inverter, the sawtooth generator, the threshold block, and the first odnostabil- rafter saw, threshold unit, and the first one-stage the input of the first element OR, a chain of series-connected second monostable multivibrate multivibrator, the second pulse selector connected between the other output of the input amplifier and the second the input of the first element OR, a chain of series-connected second monostable multivibrate RA and the second element OR, between the output of the fault detector and the first input of the key, and the output amplifier connected between the output key and the corresponding input of the remote control line, and the input of the input amplifier is connected to the output necessary for normal operation of the in- 35 of the regenerator, and the second input of the second dictator 9. In addition to the control of the DSP, the OR element is connected to the output using the quasi-triple signal of the forward one-stable multivibrator.