SU924880A1 - Device for remote monitoring of communication channel - Google Patents

Description

one

The invention relates to radio engineering and can be used in systems for the remote monitoring of the performance of networks and channels of telegraph communication, subscriber lines, indicators of quality of communication.

A device for telecontrol of a communication channel is known, comprising a series-connected pulse generator, a frequency divider, a pulse distributor and a recording unit, the signal inputs of which are the signals of the control parameters of the communication channel, and the series-connected coding unit whose input is connected to the second output of the splitter frequency, keypad and indicator, with the second arm of the keypad being connected to the channel input of telecontrol 1.

However, the known device has a small allowable number of monitored parameters of the communication channel.

The purpose of the invention is to increase the permissible number of monitored parameters of the communication channel without increasing the bandwidth of the telecontrol channel.

To achieve this goal, a serially connected counter, an encoder and a storage device are entered into a known telecontrol device, the second output of the pulse distributor connected to the input of the counter, the second output of which is connected to the second input of the storage unit whose output is connected to the second input of the coding unit , and the outputs of the registration unit are connected to the corresponding signal inputs of the encoder.

The drawing shows a structural block diagram of the proposed device.

Claims (1)

The device for telecontrol of the communication channel contains a generator of 1 pulses, a divider 2 frequencies, a distributor of 3 pulses, a recording unit, an encoder 5, a counter 6, a storage unit 7, a coding unit 8, a manipulator 9, an indicator 10. The device works as follows. Generator 1 generates a sequence of pulses that are a multiple of the frequencies of the manipulation of the output signals of the device, directed to the control center for input into the computer. From the output of generator 1, the pulses are fed to the input of frequency divider 2, which reduces the frequency of the pulses to the manipulation speed and the speed of the distribution of the polling pulses of the 5a-toroi signal, which are fed to the distributor 3. k. . If there is a failure in the controlled point, signal 1 is received from the corresponding output of the block, and signal O. in the absence of the output signals of block k, are fed to the input buses of the encoder 5, which provides marking only for the failure inputs. The number of input buses of the encoder 5 is equal to the number of checkpoints of the device control, and the number of bits in the output code combination H of the encoder 5 is determined (for a binary marking code) by the formula H (So, for n 02k, H 1, i.e. 1024 dec tichnyh coda combinations). The speed of reading code combinations from the encoder 5 is determined by the signals from counter 6, from which the signals of the interrogator 7 also come, with a reduced frequency. The accumulator 7 also receives output signals from the izfrarator 5. The accumulation of code combinations allows transmitting alarm signals only when they are repeated — i.e. in case of sustained failure. The output signals of the accumulator are extracted only when the failure of any number of monitored elements is detected, and always in the form of a binary code combination of constant length. In the absence of failure to confirm the failure of the signals from the output of the drive 7 is not received. Since the output signals of accumulator 7 do not contain redundancy, to transmit them over communication channel 0 to the control center, the signals are encoded with a security code in coding unit 8 and then sent to manipulator 9, which provides coupling of signals to the communication channel. An additional manipulator output 9 is connected to the indicator 10, which provides an alarm at the device installation point. The economic efficiency of the proposed device is determined by the sum of the useful effects, the performance of the telecontrol system increases at a fixed control center bandwidth, by transmitting signals only about failures; the cost of communication channels is reduced, with a fixed number of control elements; the required amount of computer memory and machine time are reduced. The invention The device for the telecontrol of a communication channel, comprising a series-connected pulse generator, a frequency divider, a pulse distributor and a recording unit, the signal inputs of which are the signals of the control parameters of the communication channel and the series-connected coding unit, whose input is connected to the second and divider output frequency, the manipulator and the indicator, and the second output of the manipulator is connected to the channel input of the telecontrol | aeol, which you can use to increase the number of monitored communication channel parameters without increasing the telecontrol channel capacity, a serially connected counter, an encoder and a storage device are entered into it, while the second output of the pulse distributor is connected to the input of the counter, the second output of which is connected to the second input of the storage device whose output is connected, with the second input of the coding block, and the outputs of the registration block are connected to the corresponding signal inputs of the encoder. Sources of information taken into account during the examination 1. Japan patent No., cl. 96/2 C 16, 1978 (prototype).