SU764141A2 - Device for checking validity of data transmitted along wire communication channels - Google Patents

Description

one

The invention relates to telecommunications engineering and can be used in transmitting signals over wired communication channels.

On the main. Avt, ev, 5625265

A device for monitoring the reliability of information transmitted over wired communication channels, containing a test signal analyzer, the first output of a second through 0 counter, zeros is connected to the input of the signal analyzer of the counter. Zero, the second output of the test signal analyzer is connected to zero, the third output 5 of the test signal analyzer is connected to the first input of the block through the serially connected counter numbers from the NIBK and the switching unit, and to the first and second inputs-20 yes The analyzer's "test signals" are connected, respectively, to the second output of the zero counter and the first output; the signal analyzer of the zero counter, the second output of which is connected to Vhb25 do k block of impulse noise fixation, a. also, a time relay, a block of the signal of the control signal, an interval of control, a trigger for recording the error signal and a trigger for writing the error signal, a block of selection 30

the error signal front, while the relay is connected to the second input of the control unit and the first input of the error signal writing trigger, respectively, and the output of the switching unit is connected via the serially connected error signal writing trigger and a blocking unit of the front of the error signal to the third input of the display unit connected to the output of the fixing unit | pulse noise, in this case the output of an additional unit of zero setting is connected to the control inputs of the Leu time sensor, the chisel counter side, the error signal recording trigger and the error signal charging trigger.

However, the known device has a lack of accuracy of control, in the conditions of the admissibility of packets of errors of a given length.

The purpose of the invention is to improve the accuracy of control, in the conditions of the admissibility of error bursts of a given duration.

For this purpose, in the device for controlling the reliability of information transmitted over wired channels of St. hello the analyzer contains test signals, the output of which is connected to the input of the analyzer of the signals of the counter of zeroes, the second output of the analyzer of test signals is connected to the input of the unit to zero, the third output of the analyzer of test signals through the sequential number of the switch and the switching unit connected to the first input of the display unit, and to the first and second inputs of the analyzer of test signals, a second zero counter output and a first analog output are connected, respectively the zero counting signals, the second output of which is connected to the input of the impulse noise fixing unit, as well as the time relay, the control unit for the delay of the end-to-control signal, the trigger for recording the error signal and the trigger for describing the error signal, the block for selecting the front of the error signal, the time relay through the delay unit of the signal of the end of the monitoring interval is connected respectively to the second input of the indicating unit and the first input of the error signal flushing trigger, and the output of the switching unit is connected via serially connected the trigger of the sig record recording, a bit error, an error signal cancellation trigger and an error signal edge selection block to the third input of the display unit connected to the output of the impulse noise fixation block, at the same time to the control inputs of the time relay, error count counter, trigger record The error signal and the error signal trigger trigger are connected to the output of the additional installation unit to zero, the counter lock block is entered. Error numbers, with the additional output of the zero counter signal analyzer output via the block block, the number counter errors are connected to the input of the prohibition of the counter of the number of errors and the output of the setting unit to zero is connected to the input of the delay unit of the monitoring interval signal. ; The drawing shows the structural scheme of the proposed device. The device for verifying the reliability of information transmitted over wired communication channels contains analyzer 1 test signals, counter 2 zeros, analyzer 3 signals of the counter zero, unit 4 is set to zero, counter 5 is the number of errors, unit b of switching, block 7 of indication block 8 of fixation impulse noise, p. le 9 times, block 10 of the delay of the monitoring interval end signal, trigger 11 for recording the error signal, trigger 12 for writing off the error signal, block 13 for selecting the leading edge of the error signal, additional block 14 for setting to zero, block 15 for blocking the counter for the number of errors. The device works as follows. Random, a sequence of binary signals from the transmitting side is fed to the input of the analyzer 1 test signals. In the absence of errors in the input sequence, a signal appears at the output of counter 2 zeros, which puts analyzer 1 into stand-alone mode. After switching on the appl & atura using blocks 4 and 14, the counter 5 is set to the number of errors, the display unit 7, the time relay 9 and the triggers 11, 12. Then, in the presence of errors, the latter are counted by the counter 5 in the time interval determined by the time relay 9. In the absence of impulse noise, but in the presence of the number of errors in the input sequence above a predetermined value from the output of counter 5, an error signal arrives at the triggers 11,, 12 and block 13. Two cycles before the end of the monitoring interval, the error signal goes to display 7, where signal avarie. If the number of errors in the input sequence does not exceed a predetermined value, but is greater than another value, also specified, then an error signal is sent from counter 5 to display unit 7, where a Warning signal is generated at the end of the monitoring interval. If the input sequence is affected by continuous pulses of interference, such that during two clocks from the counter 2 zero output, the analyzer 3 does not receive a single signal, then the output of the last signal acts on the analyzer 1 input, which switches to the input mode sequences. Block 8 counts the number of signals from the output of the analyzer 3. The will duration of impulse noise exceeds a predetermined value, then the output of block 8 receives a signal to the display unit 7, where it generates an Avariy with a signal from Block 10, triggers 11, 12 and block 3 serve for separate fixing impulse noise and loss of authenticity using the same display unit 7, as well as providing operational control with fixing errors at the subsequent interval and error generation at the previous monitoring interval. The operations necessary for this are realized as an error signal delay using the triggers 11, 12, block 13, and the delay of the signal of the end of the inerval channel using the block 10.

Claims (1)

Claim A device for monitoring the reliability of information transmitted over wired communication channels, according to ed. St. No. 56292b, characterized in that, in order to increase the accuracy of control, under conditions of permissible bursts of errors of 20 specified lengths, an error counter counter block is introduced, while the additional output of the zero counter analyzer through the error counter counter block is connected to the counter inhibit input the number of errors, and the output of the zero unit is connected to the input of the delay unit of the signal at the end of the monitoring interval. VNIIPI Order 6303/50 Circulation 729 Subscription Branch of PPPPatent, Uzhgorod, Project 4,