SU1228294A1 - Device for automatic checking of interstation sections of telegraph communication network - Google Patents

Abstract

The invention relates to telecommunications. In relation to the main author. St. No. 1070701 is shortened by the time of consignment 7 trol. The device contains a block of tests for the occupation of sections 1, a block of connections for a free section 2, a distributor of numbers 3, a distributor of commands 4, an identification text analyzer 5, an analyzer of signals 6, a distortion meter 7, a mode setting block 8, an information output block 9, memory block of untested areas 10, sensor of extreme combinations 11, time interval analyzer 12, service signal analyzer 13, block 14, characteristics sensor of sections 15, long-term memory block (BST) d 16, rewriter block formations 17, dates;; Echik predistortion 18, gauge (L to N5 00 th No

Description

error 19, switch 20, autoresponse request sensor 21, quasi-request sensor 22, match block 23, comparison block 24, text sensor 25 ... sensor of control connection 26, sensor of sequential set of combinations 27, directional analyzer (ACH) 28, accumulator response pulses (NLIs) 29, timer 30. Timer-30 provides a periodic start for a specified interval. A control device for a one-time test of areas. The invention relates to telecommunications and can be used on switched telegraphs. Functional communication networks for monitoring inter-station sections of the telegraph network containing discrete communication channels limited by intercom devices (PU) of adjacent switching stations, and is an improvement of the invention in the author. No. 1070701.

The purpose of the invention is to reduce the control time.

Fig. 1 shows a structural electrical circuit of the device of Fig. 2, an example of the implementation of a directional state analyzer.

The device for automatic control of the inter-station sections of the telegraph network of communications contains a block of 1 sample for occupied sites., A block of 2 connections of a free site, a distributor of 3 radar, a distributor of 4 commands, an identification text analyzer 5, an interchange signal analyzer b, a distortion meter 7, block 8 mode settings, information output block 9, memory block of untested sites, sensor 11, extreme combinations, analyzer 12 time intervals, service signal analyzer 13, block 14, lock 15 teristics unit 16 plots a long-term memory, the information rewriting unit 17, the sensor 18 PREV yukazheny, errors meter 19, the switch 20, the sensor 21 request automatic answering kvazizaprosa sensor 22, blo

jieHtm, the numbers of which are recorded in the BJP-16 - the mode of loading the directions. According to the number of the direction coming from the BST t6 to the ACH 28, the threshold for this direction is determined by the number of free sites and is recorded in the NLL 29. Each response pulse from the analyzer 6 reduces the number recorded in NUR 29 by one. The direction is not overloaded at the transition B of the zero of the NDE 29. The result of the direction control is recorded in the ASN 28 '2 Il.

23 matches, comparator block 24, text sensor 25 consisting of sensor 26 of the signals of the test connection of sensor 27 of the sequential dialing

combinations, the analyzer 28 directions, the drive 29 and the timer 30.

Analyzer. The 28 states of the directions (FIG. 2) contain a trigger 31,

a counter 32, a memory block 33, a comparison block 34, a register 35, an adder 36 and an AND 37 element.

The device works as follows

The unit 1 for a sample of the busy sections provides testing for the occupation of the sample chain of the next section intended for control. Block 2 connections free

The site provides a connection to the transmission and reception of the free site to sensors, meters and analyzers, respectively.

The distributor of 3 numbers controls the block 2, switching it to the next control step in accordance with the set mode of operation, determined by the block 8 of setting the modes, the latter providing various control modes, including control

all areas connected to the equipment, control of an arbitrary group of areas, multiple control of one selected area.

35

The distributor of 4 commands together with the distributor of 3 numbers provides installation of equipment for the next control step, control of testing the area for busy and connecting to a free site, control of sensors, meters and analyzers when receiving relevant information from the passive control node, as well as control of block 9 output information about the state of the controlled area.

- The identification text analyzer 5 performs dialysis of the identification text (confirmation of the correctness of connection establishment) from the passive control unit.

The analyzer 6 of the pruning signals provides a sequential analysis of the signals coming from the station during the process of establishing a connection (response pulses, reversal).

Distortion meter 7 measures the distortion in text coming from the passive node.

The memory block 10 of unchecked areas memorizes the areas unchecked during the monitoring session.

The sensor 11 of extreme combinations transmits special combinations of the 1:20 or 1:63 type to provide control of the time of the driving circuits of the transitional devices of the switching stations limiting the inter-station segment,

The time interval analyzer 12 monitors the duration of the response pulses from the adjacent switching station and the intervals between them.

Classical signal analyzer 13 is designed to receive service signals, which are formalized text of a single format, generated by sensors of adjacent switching stations at various stages of connection.

Block 14 is designed to block the inter-office site from being occupied by any connection until the site parameters are normal.

The sensor 15 of the characteristics of the sections is designed to form and transmit to the passive control node encoded information about the type of the monitored section and the nominal wiring speed for this section.

The non-volatile memory unit 16 is designed to store information about areas necessary for security.

establishing control compounds and conducting a cycle of control.

The information rewriting unit 17 provides for the change of information stored in the non-volatile memory unit 16.

The predistortion sensor 18 introduces a predistortion in the text in the case of control of code dependent gx channels. } 0 The error meter 19 provides error control in the QKS text received from the passive control node, Switch 20 is a conventional electronic switch and 15 provides switching of equipment operation modes from the monitoring of areas between reference stations for 1 monitoring of sites for reference stations and stations of small capacity 0 (substations).

The auto answer request sensor 21 generates a combination consisting of a pair of Digit and D characters (MTK-2 code) or a KTM / 0/5 combination (5 MTK-5 code), upon reception of which the telegraph answering machine is started.

The quasi-request sensor 22 generates text, which is a sequence of telegraph combinations that differ from an auto-answer request by one element, which is distorted in such a way that the TA receiver with non-compliant correcting ability accepts a quasi-request as an auto-answer request. With 5 vol. Information on the reduction of the correcting ability of the receiver is the receipt of an auto answer.

To control areas operating MTK-2 at a speed of 50 or 100 Bod, the quasi-request contains groups consisting of seven pairs of combinations: B,

five

0

five

iTTll and

d and d

AND, NUMBERS, NUMBERS,

To control areas operating MTK-5 at a speed of 200 Bod, the group contains eight combinations: KTM- / 0/5 ji Е Е О / О НЕТ 1/5; NO 1/5, 0/13 /.

 The match block 23 checks the match of the number of transmitted combinations of an auto reply request with the number of received auto replies. Comparison unit 24 compares

5 text of incoming auto-answers with a given one, representing a sequence of 20 telegraph signs, moreover, at 1,2,3,4 and 20 positions

Auto-replies are constantly transmitted the same service characters.

The text sensor 25 transmits signals to the assistive node in order to establish a control connection, the identification text recommended by CCITT, the text QKS and the output signal.

When monitoring inter-station sites between reference stations, the device performs a monitoring cycle, during which the control connection signals sensor 26 is in operation during the establishment of the control connection, and after the control connection is established, the sensor 27 of the sequential set of combinations forms the text QKS. The switching sequence of these sensors is determined by the distributor of 4 commands.

When switching to the next step and receiving information from block 16 of the long-term memory that the area between the reference station and the small capacity station (substation) and the number of its telegraph apparatus (TA) equipment is monitored, the device establishes a control connection with this A TA equipped with a regenerator in order to eliminate the influence on the result of monitoring the parameters of a given TA, the establishment of a connection between the control device and the TA technique is carried out similarly to the establishment of a control connection between the device m and the passive node control. After the connection is established, the command distributor 4 commands the switch 20 to connect the auto-response request sensor 21 and the quasi-request sensor 22, as well as the block 23

block 24 as well ..

The auto answer request sensor 21 sends an auto answer request combination to the TA side. When receiving an auto response from the TA tachnik, the comparison unit 24 informs the distributor of 4 commands that allows the transducer 21 to transmit the auto call answer j combinations distorted by alternately extending or shortening the start files with the help of Predistortion sensor 18 is equal to the correcting ability of the TA regenerator minus the allowable distortions imparted by the monitored section.

When transmitting each regular combination of request auto answer sensor

five

0 5 o

0

21 informs the comparison block 24 and the match 23 block, which first analyzes the auto-responses for errors: the text of which determines the quality of the sections containing code-dependent channels, and the second compares the number of transmitted auto-response requests with the number of incoming auto-answers. When errors are fixed in the text of the auto-responses or when there is no response to the transmitted request of the auto-answer, the match block 23 or the comparison block 24 informs about. In this case, the command distributor 4, which controls the blocking unit 14 and the information output unit 9, the first of which blocks the section and the second one fixes a malfunction code.

The measurement of the distortions introduced by the section containing the code-independent channel is carried out with the aid of a meter 7 of distortions in the text of the incoming auto-responses.

In case of a positive control result for the in-depth control of the site, the command dispenser 4 includes a quasi-request sensor 22. Information on the site non-compliance with the norms in this case is the presence of an automatic response from the TA technician.

Timer 30 provides a periodic start for a predetermined time interval of the monitoring device for a single check of the sections of directions, the numbers of logs 1Y in block 16 of the long-term memory — the direction load estimation mode.

The distributor of 4 commands together with the distributor of 3 numbers ensures installation of the equipment at the next control step, control of testing the area for occupancy and connecting to a free area for registering by the analyzer 6 signals of the response of the response pulse from the control panel of the adjacent station, which denotes the operability of the tested section .. At the same time, the areas whose parameters, for example, the level of distortions, are out of allowable limits, are blocked by the device according to the basic invention and subsequently, before they are restored and are perceived as an occupied by the. During the monitoring period of the inter-station sites according to the basic invention, only a site failure is possible, the presence of which can be determined by attempting to establish connection on this site before receiving a response pulse from the control station adjacent to the station.

According to the direction number received from the long-term memory unit 16 in the directional condition analyzer 28, the threshold for this direction is determined by the number of free sections at which this direction is read overloaded and written to the drive 29 of response pulses.

Each response pulse, coming from the analyzer of 6 switching signals, reduces the number recorded in the drive 29 of response pulses by one. The transition to zero of the accumulator 29 of response pulses indicates that during the test of this direction the number of free sections is greater than the threshold, i.e. direction is not overloaded. The result of the directional control (overloaded - not overloaded) is recorded in the analyzer 28 of the state of the directions, further verification of this direction is stopped, and the distributor of 4 commands together with the distributor of 3 numbers provide similar operations for the next order of the order number. This is a one-time round-trip by the monitoring device, after which the device waits for a start signal from timer 30 to repeat the bypass.

If the number of overload conditions recorded as a result of the latter. Of these, Bypasses, exceeds the preset threshold, the number of this direction comes to the information output unit 9. The absence of the transmission of this number to the information output unit 9 in subsequent rounds indicates that the direction has left the overload state.

The analyzer 28 state directions works as follows.

Upon receipt from the distributor 3 of the signal number of the start of checking the direction, trigger 31 is set to 1 and enables operation of the counter 32 connected to the address bus of the memory block 33. From the exit

2282948

memory 33, the numbers of the directions are alternately read and the accompanying service information is a threshold number of free sections, at which this direction is not

overloaded, and information about the state of the directions during the last K rounds. If the number read from block 33 matches

) 0 direction with the number received from the non-volatile memory unit 16, the signal from the comparator unit 34 sets the trigger 31 to O, stopping the counter 32, to the drive

15 29, the threshold number of free sections is given, and the directions for the last (K-1) rounds are in the second К-and register bits 35. The result of the direction control is written to the first digit of register 35. The adder 36 sums the number overload conditions for the last K rounds in case of exceeding the specified threshold allows the transfer

2J through the element And 37 of information about the liev direction in the information output block 9. The new state of register 35 is recorded in memory block 33.

thirty

Claims (1)

Invention Formula A device for automatic control of inter-station sites of the telegraph network by auth.St. No. 1070701, characterized in that, in order to reduce the monitoring time, an analyzer, directional states, a drive and a timer, with a clock input, are introduced. the storage device is connected to the output of the signal analyzer; the information input is connected to the first output of the directional state analyzer, the second output of which is connected to the input of the information output unit, the output of the storage unit is connected to the clock input of the storage unit and the second input of which is connected to the output of the non-volatile memory unit, the third input is connected to the first output of the number allocator, and the timer output is connected to the second input of the number allocator. W From 16 Editor N. Kishtulints Compiled by N. Mesh Shna Tehred N. Bonkalo Proofreader M. Samborska 2298/59 Circulation 624 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab. 4/3 Production and printing company, Uzhgorod, st. Project, 4 Fm. 2