SU926775A1 - Device for remote monitoring of unattended regenerative repeaters - Google Patents

Description

(54) DEVICE FOR REMOTE

CONTROL UNUSEDABLE REGENERATIVE

one

The invention relates to communication technology, in particular, to monitoring the operability of signal transmission means, and can be used on digital communication backbones for remote control of unattended regenerative translators.

A device for remote control of regenerative translators along a loop is known, comprising a test signal sensor consisting of a frequency divider with a constant division factor and a serially connected master oscillator, a pulse former, a frequency divider with a variable division factor, a triad former, a module the triad phase torus and the output stage, the output of the clock pulse generator is also connected to the additional inputs of the triad form: the triad and the output stage, and tlD test sample analyzer.

A disadvantage of the known device is the considerable duration of the TRANSLATORS.

2

tests requiring selective measurements of voltage levels and subsequent analysis of the results of the 1X results.

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

The goal is achieved by the fact that in a device for remote control unsupervised regenerative translators, containing a test signal sensor, consisting of a frequency divider with a constant division factor and serially connected master oscillator, clock generator, frequency divider with variable division factor, triad generator modulator of the triad phase and the output stage, Moreover, the clock pulse generator is also connected to the additional inputs of the a triad and an output cascade, and a test signal analyzer, in the test signal sensor, a frequency divider with a nocTOHHHbiN dividing factor is connected between the output of a variable dividing frequency terminal and an additional input of the triad phase modulator, which also connects the test analyzer trigger input to a signal containing in addition polarity separation, trigger d by separate start, the first and second three-input elements And, the first and second pulse counters Short pulse generator, AND-NOT element, And two-input element and display unit, the input of the polarity separation node is connected to the analyzer input of the test signal, and its first to the second outputs under the key respectively to the trigger inputs with separate start and to the second inputs of the first and the second three-input elements And, the first inputs of which are connected to the trigger outputs with separate start, and to the third inputs - the corresponding outputs of the counting trigger whose inverse output is also connected to the input, ate short pulses, the output of which is connected to the installation inputs of the first and second pulse counters, the outputs of the first and second three-input elements and are connected respectively to the counting inputs of the first and second pulse counters, the outputs of which are higher / bit connected to separate AND-NOT, the output of which is connected: with the output of a double-in element I, with / another input, which is connected to the output of the short pulse generator, the output of the two-input element I is connected to the display unit.

In addition, the display unit is made in the form of a series-connected pulse expander, a control key and a light indicator.

FIG. 1 shows a functional diagram of the device for remote control of maintenance-free regenerative translators ;; in fig. 2 - time diagrams of signals at various / points of the circuit.

A device for remote monitoring of unattended regenerative transporters includes a probe 1 sensor and a test signal analyzer 2. At 9TM, the sensor 1 of the test signal consists of a master oscillator 3, a driver of 4 clock pulses, a frequency divider 5 with a variable division factor.

triad frequency generator, triad generator 6, triad phase modulator 7, which triads invert triad after half the control frequency period, output stage 8, used to generate a three-level signal with standard pulse parameters and match the device output with a line, and frequency divider 9 with a constant division factor providing the reference frequency (triad inversion frequency). The analyzer 2 of the test signal contains the node 10 of the polarity of the input signal, the trigger 11 with separate start, three-input elements And 12 and 13, the counting trigger 14, shaper 15 short pulses, counters 16 and 17 pulses, element AND-HE 18, two-input element And 19 and an indication unit 20, which consists of a pulse expander 21, an indicator control key 22 and a light indicator 23.

The device for remote control of maintenance-free regenerative translators works as follows.

Claims (2)

The master oscillator 3 of sensor 1 of the test signal generates a sinusoidal clock signal (Fig. 2c1), which driver 4 converts into a sequence of pulses with durations equal to half the period of the clock frequency (Fig. 2U. Pulse sequence (Fig. 2B) is fed to frequency divider 5 The division ratio of which can be varied within (usually from 4 to 11.) The signal from the output of divider 5 (Fig. 26) is fed to the main input of the triad 6 generator, to the executive input of which is fed sequentially The clock of the pulses. At the output of the imager, the 6 triads form a sequence of two pulses (the time shift between the pulses of the two is 2 clock periods) with a triad frequency (Fig. 2 g), and at its second output - a sequence of single pulses with the same frequency ( Fig. 2E) delayed with respect to the first pulses of the sequence at the first output for a clock period. The pulse sequences from the outputs of the triad generator 6 arrive at the corresponding signal inputs of the triad phase modulator 7, and its additional control INPUT supplies an equally important pulsed control frequency signal (Fig. 26) from the output of frequency divider 9 with a constant division factor, which will divide the frequency of the triad sequence. In the triad phase modulator 7, the input pulse sequences are switched from the triad generator 6 between the first and second triad phase modulator 7 outputs with the control frequency, as a result of which a triad signal is generated at the output of the first modulator of the triad phase 7 (Fig. 2b) The output is a signal (Fig. 2). These signals are fed to the corresponding main inputs of the output stage 8, which forms a three-level test signal (Fig. 2 and), fed to the tested linear path. For normalization of the output signals and f By the duration, the additional input of the output stage 8 comes in an impulse sequence} (Fig. 2B) from the output of the 4 clock pulse generator. The signal (Fig. 2 k) from the output of the station linear path regenerator returns through the loop in the checked regenerative the translator, in general, distorted and phase-shifted relative to the test signal on the transmission (Fig. 2 and), is fed to the input of the polarity separation node Yu, the analyzer of the test signal 2, on the first and second outputs of the node 10 and polarities formed unipolar pulse sequence (Fig. 2 l, m), respectively, which correspond to the pulses of the positive and negative polarities of the input signal (Fig. 2 K). These successively, the pulses are fed to the corresponding inputs of the trigger 11 with separate start, which is triggered from the falling edges of the pulses. The signal (Fig. 2N) from the direct output of the trigger 11 with separate start goes to the first input of the first three-input element I 12, and the signal (Fig. 2 O) from the inverse output of the trigger 11c to separate start to the first input of the second three-input element fi 13. Pulse sequences are supplied to the second inputs of the three-input elements AND 12 and 13, respectively (Fig. 2 m, l from the second and first outputs of the polarity separation unit 10, and to the third inputs of the three input elements 12 and 13 are pulses (Fig. 2p) And inverse (Fig. 2p), respectively, in strokes of the counting trigger 14, which divides into two control frequencies, arriving at it from divider 9 with a constant division factor of sensor 1 of the test signal, as a result of which the pulse durations (Fig. 2n, p) at the corresponding outputs of the counting trigger 14 are equal the triad inversion frequency period. In the case of triads at the input of the polarity separation unit 10, two or more pulses appear at its first or second outputs, in the interval of which by the opposite output there are no pulses, Performan trehvhodovogo which the inputs of AND 12 has a convergence admission triads negative polarity, and at the inputs of AND gate 13 trehvhodovogo - positive polarity. The signals arriving at the third inputs of the three-input elements And 12 and 13 from the counting 14, set the time intervals for counting the number of triads equal to the inversion frequency period. The pulses from the output of the three-cell element I 12 (Fig. 26) are fed to the counter 16 pulses, and the pulses from the output of the three-input element I 13 to the counter 17 pulses. The nominal value of the capacitance of each pulse counter is determined by the ratio O of the division factor of divider 9 with a constant division factor. Since in a real linear path, even with serviceable regenerative translators, some malfunctions can occur, and at the boundaries of the triad frequency change, signal distortion should be allowed for the possible deviation of the actual number of pulses from the nominal value (in the order of 3-5%) For this purpose, pulse counters must be performed with an appropriate capacity reserve and their states should be read only from certain higher discharge counters. The signals from the corresponding bits of the counters 16 and 17 of the pulses are fed to the inputs of the NAND element. At the end of the counting interval of the triad of both polarities, equal to two periods of their inversion frequency, pulses appear on the output of the shaper 15 short pulses (Fig. 2 tons) at the moments of the falling edges of the pulses entering the shaper 15 short pulses from the HtroepcHoro output of the counting figger 14, Short: v outputs from the output of 15 short pulses are fed to the second input of the element AND 19 at the starting input of which the output of the signal of the element 18 arrives (fig. 2 IF by the time of the short impulse from the driver 15 short their pulses at least one of the counters 16 and 17 of the pulses was not filled, the output element And 19 forms a pulse of the same duration that the pulse expander 2 (for example, the waiting multi vibrator) 21 of the display unit 20 starts. Immediately c from the output of the expander 21 pulses (fcg, 2ph), having a duration sufficient for fixing it with the help of the light bar D1-1kator 23, 1393. The control key 22 causes the 6fiTfcTBaHi-je light 23 of the indicator (e.g., incandescent bulb or LED) to turn on. mean lawsuit voltage yeny1-atelkogo with 5gnala. This case is presented in fig. 2: the triads of positive reception at the reception have Nska, in the form of the third pulse disappearing (Fig. 2k), as a result of which the counting 5-1-1c 17 pulses do not fill during the counting period, the signal level at the output of element 18 (phg: 2 ) is maintained high (the case of a normal one, the pulse counter is shown on Fig. 11 at the dotted line), which ultimately leads to the triggering of the light signal. 23. After the end of the total counting period, the counters 16 and 17 pulses to the zero position, which is carried out back their front short pulse supplied to the adjusting inputs of counters 16 and 17impulsov output shaper 16 short pulses. The described signal of the incoming signal is periodically repeated. The proposed device, according to the known, allows to shut the npoxiecc telecontrol. Claims i. The device, for remote control, does not serve the 1x HbfX regenerative translators, contains a test signal sensor, consisting of a frequency divider with a constant division factor and serially connected master oscillator, a clock generator, a frequency division with a variable division factor, a triad generator, the triad phase modulator and the output stage, the output of the clock generator is also connected to the additional inputs of the triad generator and the output stage, and A test signal attorney, characterized in that, in order to reduce the test time, in the test signal sensor, a frequency divider with a constant kf dividing factor is connected between the output of the frequency divider with a variable dividing factor and the auxiliary input of the triad phase modulator, the auxiliary input of which is also connected to the input counting trigger of the test signal analyzer, the content of which is also a field separation node, a trigger with separate start, the first and second three-input elements And / first the second pulse counters, the shaper of short pulses, the NAND element, the two-input element AND and the display unit, the npHjeM input of the polarity separation node is connected to the analyzer input of the test signal, and its first and second outputs are connected respectively to the trigger inputs with separate start and to the second the inputs of the first and second three-input elements And, to the first inputs of which are connected the trigger outputs with separate start, and to the third inputs - the corresponding outputs of the counting trigger, the 1st output of which also connects with short pulse pulse inlet output. which is connected to the installation inputs of the first and second pulse counters, the outputs of the first and second three-input elements And are connected respectively to the counting inputs of the first and second pulse counters, the outputs of the higher bits of which are connected to separate inputs of the AND-NOT element, the output of which is connected to the input of the two-input element And, with the other input of which the output of the short pulse pulse former is connected, the output of the two-input element I is connected to the chassis dipstick. 2. The device according to claim 1, wherein the display unit is made in the form of serially connected pulse extender, control and light indicator. Sources of information taken into account in the examination of IfBonpocH radio electronics. Seri TPS. VPLO, 1973, p.5v-62 (prototype). ;