SU1635271A1 - Device for measurement of quality of channels for transmission of discrete information - Google Patents

Abstract

The invention relates to telecommunications. The purpose of the invention is to increase the reliability by controlling the entire transmit-receive path. The device contains the first indicator 1, limiter 2, part detector 3, voltmeter 4, shaper 5 time intervals, amplitude detector 6, threshold blocks 7 and 8, block 9 prohibition, meter 10 signal-to-noise ratio, second indicator 11, receiver 12 alarm signal , keys 13-18, shaper 19 signal generator, counter 20, timer 21, alarm sensor 22, trigger 23, voltage sensor 24, current sensor 25, multiply 26, threshold blocks 27 and 28, OR element 29, divider 30 voltages, incident wave 31 and 32 sensors, directional switches 33 and 34, block 3 5, an amplitude detector 36, a switching unit 37, a controlled power amplifier 38, a correspondent signal sensor 39, a feeder 40, a synthesizer 41, a modulator 42, and a frequency amplifier 43. When the Avariya signal appears from the output of receiver 12, the keys 14, 16 and 18 are activated, the indication of signals about the condition of the path is prohibited. 1 il. S (l

Description

the output of the former 19 signal no. counter 20 there is a logical

 g, p4J It - II,

the key 14 is closed, and the prohibition block 9 is in the open state, at the output of the meter 10 signal-to-noise ratio there is a voltage equal to

50

1, which is displayed as an executive command. The terminal equipment is operational. In the presence of a clogged signal or a fault in the receiving path, the executive commands are not displayed until the fault signal disappears or the receive path is restored.

yo

 Ue + Ugj

and

sh

indicator 1 displays the ratio g0,

When interference appears, a voltage appears at the output of the threshold unit 7, according to which driver 19 generates a signal to drive, key 14 from It-II,

1, which is displayed as an executive command. The terminal equipment is operational. In the presence of a clogged signal or a fault in the receive path, the executive commands are not displayed until the fault signal disappears or the receive path is restored.

Monitoring the operability of the communication channel elements on the transmitting side.

The correspondent signal from the output of the signal sensor 39 through the switching unit 37 is fed to the input of the modulator 42, where it modulates the signal of the synthesizer 41. The output signal of the modulator 42 is amplified in the amplifier 43 and the power amplifier 38, is fed to the input of the antenna-feeder device and is radiated to receiving side.

If the amplifier 43 fails, its output will be a signal whose level does not correspond to the established rate. The amplitude of the signal from amplifier 43 from the output of the amplitude detector 36 will be below the trigger threshold of the trigger 23, the output of which will be logical 1 coming to the third input of the OR 29 element, which is displayed as an executive command Alarm Transmitter.

If the power amplifier 38 fails, its output power will not match the specified one. The output signal of the power amplifier 38 is supplied to a voltage sensor 24 and a current sensor 25. At the output of voltage sensor 24 and current sensor 25, video voltage pulses are generated, proportional to the voltage and current at the output of power amplifier 38, respectively. The output voltage of multiplier 26 is determined by the product of the output voltages of sensors 24 and 25. The signal of logical 1 at the output of the noporonio unit 27 will correspond to the case of a power amplifier failure. This signal is displayed as an executive command Transmitter failure.

At the output of the sensor 31, a video voltage pulse is generated, which is proportional to the voltage of the padaklny wave at the output of the power amplifier 38 (input of the antenna-feeder device). At the output of sensor 32, a video voltage pulse is provided, which is proportional to the voltage of the incident wave at the output of the feeder device. In the event of a malfunction in the antenna-feeder device (for example, an increase in active losses associated with aging and wear, breakage of the center wire of the feeder or short circuit on the braid, etc.), the efficiency determined by the divider 30 is below the threshold set by the threshold unit 28, from the output of which the signal of logical 1 is displayed in block 35 as the executive command Transmitter crash. Directional couplers 33 and 34 are used for

one

.

ten

20

635271

branch part of the energy from the feeder 40. If at least one element of the radio transmitter fails from the output of the element OR 29, the logical 1 signal arrives at the second control input of the switching unit 37, thereby disconnecting the sensor 39 of the correspondent signal from the modulator input 42 and connecting the sensor to this input 22. In addition, the logical 1 from the output of the element OR 29 starts the timer 21. The duration of the time interval of the timer 21 is selected based on the reliability of the registration of the Alarm signal at the receiving

to the side. After this time interval has elapsed from the output of timer 21, the signal arrives at the first control input of block 37 and connects sensor 39 of the signal to the input of the modulator 42. In addition, the output signal of timer 21 can be used to turn off the high voltage of the radio transmitter. The high voltage is switched on again at the end of the restoration of the failed elements of the radio transmitter.

The unit 11 prodniznngnn to display a signal about the state of the elements of the radio transmitting device.

On the receiving side, the Avariy signal is allocated by receiver 12, whose input is connected to the intermediate frequency output of the monitored radio receiver. When the Avari 1 signal appears from the output of receiver 12, logical 1 arrives at the third input of the health indicator 11 and is displayed as an executive command. An emergency radio transmitter. In addition, this signal closes the switches 13, 16 and 18, prohibiting the indication of signals about the state of the elements of the cannula-forming equipment on the receiving side and thereby increasing the reliability of the control.

25

thirty

35

4C

45

Formulas

the invention

A device for measuring the quality of the discrete information transmission channel, which contains on the receiving side a first indicator, a serially connected time interval generator, a counter, a first key and a second indicator, an amplitude detector connected in series, the first threshold unit, a block driver, a second key, a limiter, frequency detector and volchmeter, po116

Consequently, the interlocked block, the signal-to-noise ratio meter, the second threshold block and the third key, the output of which is connected to the second input of the second indicator, the second output of the signal conditioner clogged to the first input of the interdiction unit, the output of the signal-to-noise ratio n-meter In the first indicator, the first input of the receiving side of the device is the second input of the prohibition unit, the second input is the amplitude input

eight

The transmitter’s first output of the transmitting side of the device is the output of the switching unit, which is connected to the modulator input of the monitored transmitter, the third input of the switching unit is connected to the output of the alarm sensor, the fourth input is connected to the output of the OR element, the second output of the transmitting side of the device is the output of the timer, which is connected to the input of the power amplifier of the controlled transmitter, the successor

vector, the third entry is bto. but connected amplitude detector,

trigger and display unit, the second input of which is connected to the output of the first threshold unit, the input of the amplitude detector is the second input of the transmitting part of the device, which is connected to the output of the frequency amplifier of the monitored transmitter, the output of the trigger is connected to the second input of the element OR, serially: first directional the tap, the first sensor is the falling

swarm the entrance of the second key, the fourth RFPDOM from the second floor (even-1, about 1 and about 1-1 14 ii with the fact that with the purpose of .. penppgeyin; overt the control of the whole of the transmit-receive path, the fourth and fifth keys are entered on the receiving side and the Llan signal receiver and the sixth key connected in series, the output of which is connected to another third key, the voltmeter output is connected via the fourth key to the second input of the first indicator, the third key output is connected to another pass of the first key through fifth key, receiver input with Signal Avari 1 is combined with the second input of the prohibition block, and the output is connected to the third inputs of the first and second indicators and to the second inputs of the fourth and fifth keys, the output of the signal conditioner is connected to another input of the sixth key and to the third input of the fourth key, the second output of which connected to the fourth input of the first indicator, and an alarm signal sensor, a current sensor, a voltage sensor connected in series, a multiplier, a first threshold unit, an OR element, a timer, and a switching unit The second input of which is the first input of the transmitting side of the device, which is connected to the output of the sensor signal of the correspondent monitor 20

25

JO

35

40

45

50

the waves, the voltage divider and the second threshold unit, the output of which is connected to the third inputs of the OR element and the display unit, the inputs of the current, voltage and first directional coupler sensors are the third input of the transmitting part of the device and connected to the output of the power amplifier of the monitored transmitter, the second output the first directional coupler is the third output of the transmitting part of the device and is connected to the input of the controlled feeder, the second directional coupler and the second g are connected in series The incident wave detector, the output of which is connected to the second input of the voltage divider, the input of the second directional coupler is the fourth input of the transmitting side of the device and is connected to the output of the controlled feeder, the fourth output of which is the second output of the second directional coupler.

the waves, the voltage divider and the second threshold unit, the output of which is connected to the third inputs of the OR element and the display unit, the inputs of the current, voltage and first directional coupler sensors are the third input of the transmitting part of the device and connected to the output of the power amplifier of the monitored transmitter, the second output the first directional coupler is the third output of the transmitting part of the device and is connected to the input of the controlled feeder, the second directional coupler and the second g are connected in series The incident wave detector, the output of which is connected to the second input of the voltage divider, the input of the second directional coupler is the fourth input of the transmitting side of the device and is connected to the output of the controlled feeder, the fourth output of which is the second output of the second directional coupler.

Claims (1)

Formula invented A device for measuring the quality of discrete information transmission channels, comprising at the receiving side a first indicator, a serially connected time interval shaper, a counter, a first key and a second 55 indicator, a serially connected amplitude detector, a first threshold block, a clogged signal shaper, a second key, a limiter, a frequency detector and a voltmeter, 7 consequently connected to a block of prohibition, a signal-to-noise ratio meter, a second threshold block and a third switch, the output of which is connected to the second input the second indicator, the second output signal shaper clogged connected to the first input of the prohibition meter output signal / noise ratio is connected to the first input of the first indicator, the first input | the receiving side of the device is the second input of the prohibition block, the second input is the input of the amplitude detector, the third input is the second input of the second key, the fourth input is the second input of the counter, about 't a and h' u 1Ц е <с so that, in order to to increase reliability by means of the mins for the entire transceiver path, the fourth and fifth keys and the signal receiver are connected in series on the receiving side. Alarm τϊ is the sixth key, the output of which is connected, to the other input one third to 25 of its key, the output of the voltmeter is connected through the fourth key to the second input of the first indicator, the output of the third key is connected to another input of the first key through the fifth key, the input jq of the alarm receiver is combined with the second input of the inhibit block, and the output is sub-connected to the third inputs of the first and second indicators and to the second inputs of the fourth and the fifth key, ^ the output of the driver of the clogging signal is connected to another input of the sixth key and to the third input of the fourth key, the second output of which is connected to the fourth input of the first indicator, and a signal sensor is introduced on the transmitting side la alarm, current sensor, series-connected voltage sensor, multiplier, first threshold block, OR element, timer and switching block, the second input of which is the first input of the transmitting side of the device, which is connected to the output of the signal sensor of the correspondent of the monitored transmitter, the first output of the transmitting device side is the output of the switching unit, which is connected to the input of the modulator of the controlled transmitter, the third input of the switching unit is connected to the output of the alarm sensor, four the first input is connected to the output of the OR element, the second output of the transmitting side of the device is a timer output that is connected to the input of the power amplifier of the monitored transmitter, an amplitude detector, a trigger, and a display unit connected in series, the second input of which is connected to the output of the first threshold block, the amplitude detector input is the second input of the transmitting part of the device, which is connected to the output of the frequency amplifier of the controlled transmitter, the trigger output is connected to the second input of the element Serially connected first directional coupler, first! an incident wave sensor, a voltage divider and a second threshold unit, the output of which is connected to the third inputs of the OR element and the display unit, the inputs of the current sensors, voltage and the first directional coupler are the third input of the transmitting part of the device and connected to the output of the power amplifier of the controlled transmitter, the second output of the first directional coupler is the third output of the transmitting part of the device and is connected to the input of the controlled feeder, the second directional branch is connected in series l and a second sensor of the incident wave, whose output is connected to the second input of the voltage divider, the second input of the directional coupler is a fourth input of the transmission device side and connected to the output of controlled feeder fourth output which is the second output of second directional coupler.