SU1363496A2 - Apparatus for remote monitoring of communication line regenerators - Google Patents

Abstract

The invention relates to telecommunications. The purpose of the invention is to improve the accuracy of monitoring the detection of error packets at the outputs of controlled regenerators. The device contains at the terminal station 1 driver (F) 2 remote control commands and receiver 3 control signal, and at each intermediate station 4 - remote control channel 5, channel 6 telecontrol. control channel 7, controlled regenerators 8, block 9 keys, shift register 10, switch 11, peak detector 12, code violation detector 13, one-shot (0) 14, STI-HE element 15, OR element 16, key 17, control generator 18 signal. In order to increase accuracy, serially connected pulse counter 20, pulse series F 21 and an additional element OR NOT 19 are entered at each intermediate station. The first error detected by O 14, through element 19 removes the setting signal from the input P of counter 20, and it starts counting incoming impulses of errors. In case of 8 error packets with the number N equal to or greater than the capacity of the counter 20 at the output of the controlled regenerator, it will overflow, logical 1 from its output (L 14)

Description

starts F 21, and the latter, in turn, O 14. The signal from the O 14 output, as in the case of single errors, interrupts the signal from the generator 18, and the logical 1 from the output of F 21 controls the frequency of the generator 18, changing it case b1

The invention relates to telecommunications and can be used to control the linear paths of digital transmission systems.

The purpose of the invention is to improve the control accuracy by detecting a packet of errors at the outputs of controlled regenerators.

The drawing shows a structural electrical circuit device,

The telecontrol device of the link regenerators contains, at the terminal station 1, the driver of 2 remote control commands and the receiver 3 of the control signal, and at each intermediate station 4 - the remote control channel 5, the telecontrol channel 6, the control channel 7, controlled regenerators 8, the key block 9, register 10 shift, switch 11, peak detector 12, serially connected detector 1 3 code violations, one-shot 14, element RSHI-HO 15, element OR 16, key 17, generator 18 of control signal, additional element OR-NOT 19, counts 20 and a pulse shaper 21 a series of pulses.

The telecontrol device of the link regenerators operates as follows.

During normal operation, all the telecontrol nodes at end station 1 and intermediate station 4 are de-energized and do not affect the digital signal transmission. If it is necessary to check the regenerators 8, one of the intermediate stations 4 turns on the shaper 2 remote control commands at the terminal station 1 and commands are sent to the remote control channel 5 to switch the switch 11,

lazy error packs. A series of n pulses of a modified frequency of the generator 18 is recorded by the receiver 3 in the form of a signal that a packet of errors has passed, the number of which in it is equal to or greater than the capacity of the counter 20, 1 sludge.

operating according to the following algorithm: the first command switches on the first step of the switch 11, the second command switches both steps, on the third command the second step at this intermediate station 4 and the first step of switch 11 at the next intermediate station remain on. When the first stage of the switch 11 is turned on, the resolution signal is applied to the shift register 10 and the OR element 16 thereby unambiguously monitors the controlled regenerators 8 of this intermediate station 4. To halve the length of the shift register 10 and reduce the required number of commands to control the controlled regenerators 8 in the intermediate The stations 4 are divided into two groups, the choice of which is determined by the presence or absence of a signal at the output of the second stage of the switch 11 supplied to the block 9 of the keys.

The choice of the controlled regenerator 8 within the group is determined by submitting the appropriate command from the driver 2 remote control commands on channel 7 to the input of the shift register 10. Thus, the control output of the desired controlled regenerator 8 is connected to the inputs of the peak detector 12 and the detection of 13 code violations. During normal operation of the controlled regenerator 8 (the presence of pulses at its output and the absence of code violations), all the inputs of the OR 16 element are sent to signals that, passing through it, open the key 17, and the signal of the generator 18 through the key 17 is fed to channel 6 via a telecontrol and fixed at the end station 1 receiver 3, in the absence of pulses at the control output of the controlled regenerator 8, the peak detector 12 generates a signal which, through the OR 16 element, locks the key 17, thereby interrupting the signal of the generator 18, the reception being generated 3. ICOM Kaschhoe code violation in the controlled regoodnovibratora control output 14, as in the cases of single errors, interrupts the signal generator 18. In this case, the output 1 5 shaper 21 controls the frequency generator 18, it varies in the case of the occurrence of burst errors. Simultaneously with the launch of the one-shot 14c of the second output of the generator 21 of the series of the oscillator 8, the duration of which 13 violations of the code detected by the pulse detector triggers one-time-equal to the duration of the series of pulses, the rator 14 and locks the key 17 which interrupts the signal from the generator 18, which is fixed at the terminal station 1 to the receivers 3. The duration of the pulses at OR-NOT 19 appears O, at its

the output is 1, the counter 20 is zeroed out and the device returns to the original error of the controlled regenerator 8-20 state. A series of n pulses was reliably fixed by the receiver 3. The changed frequency of the generator 18 is fixed by the receiver 3 at the window station 1 as a signal about the passage of an error packet, the number of which in 25 is equal to or greater than the capacity of the counter 20.

through the element 19 OR-NOT 19 supports the level O at the input R of the counter 20, which eliminates its reset. After 15 ends of a series of pulses at both inputs of an additional element

the output of the one-shot 14 is selected such that even a single

At the same time, in the initial state or in the absence of errors at the output of the regenerator 8, O is present at the output of the one-shot 14, 1 at the output of the additional element

19OR DOES NOT support counter 20 in the zero state. Single errors are simultaneously applied to both the input of the one-shot 14 and the input.

From the counter 20. The first error recorded by the one-shot 14, through the element of the IPI-HE 19 removes the installation signal from the input P of the counter 20 and it starts counting the error pulses arriving at its input. If the counter 20 does not overflow during the pulse at the output of the one-shot 14, then after the end of this pulse the counter

20 will be reset to zero via an OR-NOT 19 element. When a controlled regenerator 8 set of errors appears at the output with the number N equal to or greater than the capacity of the counter 20, the last formula of the invention is a telecontrol of the regenerator of the communication line by auth. No. 1007205, characterized in that, in order to increase the control accuracy by detecting error packets at the outputs of the controlled re-.

35 generators, at each intermediate station serially connected pulse counter, pulse series generator and an additional element OR NOT, whose output is

40 is connected to the first input of the pulse counter, the second input of which is connected to the output of the pulse counter, the third input to the output of the code violation detector, while the other is executed, 1 from its output starts the g pulse generator cycle pulse shaper 21 pulse series 21, connected to Additional inputs are a one-shot 14, the output of which also has a series of n pulses, the number of which is determined by the driver 21. The output signal

Editor T. Lazarenko

the control signal generator and the one-shot, the output of which is connected to another input of the additional element W-NOT.

Compiled by A. Seselkin

Tehred M. Khodanich Proof-reader V. But ha

Order 6382/55 Circulation 636 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

the one-shot 14, as in the case of single errors, interrupts the signal from the generator 18. In this case, 1 from the output of the former 21 controls the frequency of the generator 18, changing it in case of an error packet. Simultaneously with the launch of the one-shot 14c of the second output of the former 21 series of pulses, the duration of which is equal to the duration of the series of pulses, OR NOT 19 appears O, on its

through the element 19 OR-NOT 19 supports the level O at the input R of the counter 20, which eliminates its reset. After the end of a series of pulses at both inputs of an additional element

Claims (1)

Claims of the Invention Telecontrol device for regenerators of a communication line according to auth. No. 1007205, characterized in that, in order to increase the control accuracy by detecting error packets at the outputs of the controlled re-. 35 generators, at each intermediate station serially connected pulse counter, pulse series generator and an additional element OR NOT, whose output is 40 is connected to the first input of the pulse counter, the second input of which is connected to the output of the pulse counter, the third input is connected to the output of the code violation detector, while the other course of the pulse shaper is connected to the additional inputs