SU1020993A2 - Device for monitoring communication system un-attended amplifictation stations - Google Patents

Abstract

I. DEVICE FOR THE CONTROL OF SERVICABLE AMPLIFIED SYSTEMS ITEMS by author. St. No. 860323, which is based on the fact that, in order to simplify the device by using one serviced reinforcement station for controlling unattended reinforcement points w. A remote control channel, a channel definition block, an OR element and (rn-l) circuits, each of which contains an additional modulator connected in series, an additional band-pass filter, a detector and a threshold element, are entered into it at the served amplifying station. : the outputs of the threshold elements of each circuit and the output of the emergency unit are connected to the corresponding inputs of the channel definition unit, the first inputs of additional modulators of each chain are connected to the first output of the control signal generator, the second inputs are connected to the corresponding teleservice channels, and the outputs of the Circassian detectors The OR element is connected to the third modulator input. 2. The device according to claim 1, in connection with the fact that the module is made; on two differential transformers, the secondary winding taps of the first differential transformer are connected to the secondary taps of the second differential transformer, the front diodes, and the middle taps are the first modular input, the primary windings of the first and second differential transformers are the second input and the modulator output comp. The secondary secondary branch wiring (:: the windings of the first differential transformer are connected to the common bus through the first resistor, and the secondary rtorog of the differential transformer through the second resistor is connected to the third modulator input) through the first resistor.

Description

The invention relates to a communication technique t may be used); to control unattended amplifying points (NUP) cable lines, On the main bus. St. No. 860323, a device for monitoring unattended reinforcement stations of communication systems is known, which contains servicing. control signal generator, band-pass filter and alarm unit at the maintenance-free amplifier point fault sensors connected to a notification signal generator, the output of which is connected to the teleservice channel, at the servicing amplifier point modulator, notification signal analyzer and command sensor, the first output of the control signal generator is connected to the input of the modulator, the other input of which is connected to the teleservice channel, the output of the modulator through a series band-pass filter and a signal analyzer connected to the notification unit tion signal input and the second output of the generator control signal commands the sensor is connected to the other inputs ana recuperators notification signal C11. However, the known device cannot control m communication lines, i.e. To control the NUP, each communication line requires its own terminal set (serviced amplifying point) containing a number of complex blocks (notification signal analyzer, control pulse generator, command sensor), labor-intensive in manufacturing and tuning. The purpose of the invention is to simplify the device by using one serviced booster point to control unattended booster points of the m telecom service channels. To achieve this goal, a device for monitoring unattended amplifying points of communication systems, containing a control signal generator, a bandpass filter and an alarm unit at a serviced amplification station, and fault sensors connected to a channel signal generator at a maintenance-free amplifying center. Teleservice on serviced booster 3. the modulator, the notification signal analyzer and the command sensor, the first output of the control signal generator is connected to the modulator input, the other input of which is connected to the teleservice channel, the modulator output is connected via a series-connected bandpass filter and the signal analyzer to the block inputs signaling, and the second output of the generator of control signals through the sensor of commands is connected to other inputs of the signal analysis analyzer, the block of determination of the channel, the OR element and (t-1) circuits, each and of which contains a series-connected additional modulator, an additional band-pass filter, a detector and a threshold element, the outputs of the threshold elements of each circuit and the output of the signaling unit are connected to the corresponding inputs of the channel definition unit, the first inputs of the additional modulators of each circuit are connected to the first output of the control generator signals, the second inputs are connected to the corresponding channels of the teleservice, and the outputs of the detectors through the element OR are connected to the third input of the module a. In addition, the modulator is provided with two differential transformers, the secondary winding taps of the first differential transformer are connected to the secondary taps of the second differential transformer via diodes, and their middle taps are the first input of the modulator, the primary windings of the first and second differential transformers are the second input and the modulator output, respectively, the average secondary discharge of the first differential transformer through the first resistor is connected to the common bus, and the secondary branch of the secondary winding of the differential transformer through the second resistor is connected to the third input of the motor. FIG. 1 shows the structural electrical circuit of the proposed device; in fig. 2 shows an example of the reaization of a channel definition unit; in fig. 3 - a basic electrical circuit of the modulator. The device contains on the servicing amplifying point (OUP) 1 block

2 alarms, command command sensor 3, notification signal analyzer 4 consisting of analysis cells, modulator 6, control signal generator 7, band-pass filter 8, block 9; channel definition, element OR 10, additional modulators 11, additional band-pass filters 12, detector 13, threshold elements H, teleservice channels, NUP, each of which contains transmitters, -17-J4 faults, and a notification signal generator 18.

Channel definition block 9 (FIG. 2 contains AND-NE 19 elements:} - 19, 20, inverter 21, triggers 22 ,, - 22, and indicators, .... Module 6 1 Fig. 3) contains two differential transformers 24, two diodes 25 and two resistors 26 and 27

The device works as follows.

Each of the yes tele service channels is used to monitor the unattended l6i-l6 booster points. On each LLP there are To sensors 17: | -17- faults and the generator 18 of the notification signal, and the sensors 17.7v of faults are connected to the generator 18 of the notification signal, the output of which is connected to the corresponding telecom service.

In the inserted circuit, an additional modulator 11 and an additional band-pass filter 12 are designed to convert notification signals coming from the service channel 15 to an intermediate signal.

The detector 13 selects the envelope of the intermediate frequency signal.

At the input of the modulator 11 connected to the channel 15 of the teleservice, a notification signal arriving from each PtOro of the LLLS may have three states: a normal signal, a sinusoidal signal of a certain frequency; urgent alarm no signal; non-urgent alarm signal - a sinusoidal signal modulated by rectangular pulses of various duration, depending on the nature of the damage:

The signal at the output of the detector 13, in accordance with the signal at the input of the modulator 11, can have three states: logical O 1 normal signal) J logical 1 (emergency alarm); rectangular pulses (non-urgent alarm).

The threshold element I is intended to issue a command to the channel definition block 9 only if there is an emergency signal (urgent or non-emergency) at its output.

Element OR 10, if there are signals,

all her inputs 1

  f

corresponding to the logical O, forms at its output a signal that also corresponds to the logical O,

When the signal changes at least at one of the inputs of the element OR.10, a similar signal is reproduced at its output.

The channel definition block 9 is designed to determine the number of the fault. th channel teleservice.

If malfunctions occur, one of the LLP 16 telecommuting channels, the terminal set located on the PMU 1, fixes the LLN number 16: and the nature of the fault. From the output of the signaling unit 2, a signal is sent to the input of the channel definition unit 9. In this case, in block 9, an alarm is triggered, fixing a faulty i

0 channel 15 teleservice. The signal in block 2 for supplying to block 9 is removed from the indicator of the general alarm, which is triggered when any type of damage occurs.

5 tera on any of the IUP 16. If a fault occurs on one of the additional service channels 152 V5m®®, a signal appears at the output of the corresponding detector 13

0 accidents, the size and shape of which is determined by the nature of the damage. A similar signal from the output of the element OR 10 is fed to the third input of the modulator 6,

five

To the first input of the modulator 6, the carrier frequency is fed from the generator 7, to the second input - a notification signal from the channel 15 of the teleservice.

At the output of the modulator 6, it forms 50 with a frequency-modulated signal fed to the band-pass filter 8.

In the absence of damage in the teleservice channels, the third input of the modulator 6 receives 55 a signal corresponding to a logical O. In this case, the modulator 6 controls only the signal received at the second input.

, five , . ,

When damage occurs in one of the channels of teleservice, a signal corresponding to logical 1, or a signal representing a sequence of square impulses, i.e. a signal that changes its state from 1 to -d spasmodically with a certain periodicity.

During the period of hitting the third input of the signal corresponding to logical 1, the diodes 25 of the modulator are locked and the attenuation of the modulator 6 increases dramatically.

Thus, in the presence of damage in channels 15 -, - 15.-at the output of the modulator 6, either completely, there is no signal, or there is a signal modulated by rectangular pulses. Since the common carrier frequency from the generator 7 of control signals is supplied to the main modulator 6 and to the additional modulators 11, the terminal set is evaluated simultaneously with m of the same name. NUP 16 in channels 15L-15 is a teleservice and records the number of NUP 16 in which the damage occurred. The number of the damaged channel 15. The teleservice is determined by the channel determining unit 9.

In the absence of damage in the channels, the inputs of the elements of block 9 from block 2 and threshold elements 1 receive signals corresponding to logical O. In this case, the outputs of the elements AND NOT 19: -19 will be 1, the outputs of the O triggers will not t.

When damage occurs in the channel 15jf teleservice, the input of the element AND-NOT 19i from block 2 is fed 1, to the inputs of the elements AND-IIE 190-190 at the outputs of the elements AND-NOT T, at the output of the element AND-NOT 20, at the output of the trigger 22 - 1 which goes to the second input of the element is NOT. Thus, at the output of the element IS-NE 19, O appears, at the output of the trigger 22; - 1, the indicator 23l is activated, which indicates the presence of damage in the channel 15 ,.

In case of damage in one of the channels S SfftTenQo6cny} K BaHMa, for example, 452 from the output of the threshold element 1 of this channel, M. arrives at the input of the AND-NOT 19p element.

209936

. In addition, the end set records the number of the damaged NUP 16, which triggers the general alarm indicator in block 2 and, 5 therefore, the input of the NAND element 19w also arrives 1.

Thus, at both inputs of the element AND-NOT 192 ° they go 1, move 19 - O, at the output of the trigger 10 22 - 1, which leads to the triggering of the indicator 232.

In this case, the outputs of the elements AND-NOT 19., and 19 will be present logical O and indicators 23j ,, t5 233-23 will not light.

The technical and economic efficiency of the use of the proposed invention is to increase the efficiency of the use of the device. This is explained as follows.

In practical terms, at the hubs, one end set of the served amplifying point, containing complex group blocks, is used to estimate -5 tele-service channels (communication lines), i.e. He can control the number of LLP 5 times. Than the prototype.

Up to two damages 30 per year can occur on one controlled LLP, and ten damages to five LLP.

The maximum recovery time of a damaged LCP does not exceed 10 hours.

35 The probability of the simultaneous occurrence of two damages during any 10-hour period at ten damages per year is, as shown by the calculation, a value of 40 of the order of 0.00013, i.e. practically zero. Thus, the reliability and reliability of the proposed device is not worse than the prototype. :

45 When monitoring NUP of five communication lines - with the help of one terminal set, the efficiency of use of terminal monitoring equipment increases almost 8 5 times. 50 Let us evaluate the increase in the efficiency of use of the entire device. In the device for control of the NUP-one line-LINK there is an end set and n sets of LLP. Complexes J5 you nUP contain simple nodes: one. frequency generators and fault sensors.

The PMO (terminal) set contains a multi-clock control generator

signals I according to the number of generators of the notice of LLP), which changes its frequency according to a specific, given program, and complex blocks for collecting processing and analyzing information coming from each LUP,

 The degree of increase in the efficiency of use of the proposed device; fla di in comparison with the prototype can be estimated by the formula

, . -. ...... ..

four

HEUP and + and.

where K- is the weight coefficient of individual parts of the device, taking into account the functions performed, the complexity of the nodes.

labor costs for maintenance, etc. t is the weight ratio of the terminal set Kgjj, f, 0.7; weight ratio of all kits.

for cd „yo o.3) i;

m is the number of communication lines}

Cd - correction factor

taking into account the introduction of additional units into the device,. .: -:

with t "5 K.1,5. For a magnitude of 2.0, Thus, the efficiency of the proposed device for controlling LLP with a communication quantity of m 5 is not less than 2 times higher than that of the prototype.

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Claims (2)

1. DEVICE FOR CONTROL OF UNAUTHORIZED AMPLIFICATION ITEMS ’COMMUNICATION SYSTEMS by ed. St. No. 860323, characterized in that, in order to simplify the device by using one serviced amplification point for monitoring the maintenance-free amplification points m of the television service channels, a channel determination unit, an OR element and (t-1) circuits are introduced into it at the served amplification point , each of which contains an additional modulator, an additional bandpass filter, a detector and a threshold element connected in series, moreover, the outputs of the threshold elements of each circuit and the output of the alarm unit are connected to the corresponding the corresponding inputs of the channel definition unit, the first inputs of additional modulators of each circuit are connected to the first output of the control signal generator, the second inputs are connected to the corresponding tele-service channels, and the outputs of the detectors are connected via the OR element to the third input of the modulator .. 2. The device according to π. 1, it follows from the fact that the modulator is made on two differential transformers, and the taps of the secondary winding of the first differential transformer are connected to the secondary taps of the second differential transformer through diodes and the middle taps are the first input of the modulator, the primary the windings of the first and second differential transformers are the second input and output of the modulator, respectively, '', vein, the average tap of the secondary winding of the first differential transformer through the first resistor Inonii common bus, and the average discharge of the secondary winding of the second differential • differential transformer via a second resistor connected to the third input of the modulator.