SU1172037A1 - Device for checking equipment of repeater stations - Google Patents

Abstract

A DEVICE TO CONTROL EQUIPMENT OF RADIO STATIONS, containing the first switch in the transmission, whose inputs are the first inputs of the device for controlling the equipment of radio relay stations, the first synchronization unit, the outputs of which are connected to the control inputs of the first switch, and the reception connected to the second synchronization unit, the clock output of which is connected to the input of the first synchronization unit through the first communication channel, the distributor and the display unit, with the first information input The display unit is connected to the output of the first switch through the second communication channel, characterized in that, in order to expand the functionality by providing an assessment of specific parameter values, the display unit is made in the form of two AND elements and two display element matrices whose control inputs are combined and are the control inputs of the display unit, the information input of each matrix of display elements is connected to the output of the corresponding element AND, the inputs of the elements AND are respectively the first , the fourth, second and third information inputs of the display unit, the sensor of reference levels, the first output of which is connected to one of the inputs of the first switch, are connected to the device; the second switch and the voltage converter are connected in series, the second output of the reference sensor levels are connected to one of the inputs of the second switch, the remaining inputs of which are the second inputs of the device for monitoring the equipment of radio relay stations, and the control inputs are second The switch is connected to the outputs of the first synchronization unit, at the reception — serially connected converter time interval — the digital code whose input is connected to the output of the voltage converter — the time interval through the third communication channel and the comparison unit whose output is connected to the second information input of the display unit , the switch, the inputs of which are connected to the corresponding outputs of the distributor, the unit (L tolerances, the outputs of which are connected to the other inputs of the comparison unit, and the inputs to the outputs synchronization unit, self-control unit, serially connected memory block and indicator, while the control input of the memory block is connected to the output of the switch, information inputs are connected to the transmitter outputs, time interval - a digital code, | С which are connected to the information inputs of the self-control block, the additional input of which is connected to the output of the first switch through the second communication channel, the control input of the self-control unit is connected to the corresponding output of the distributor, the first output is connected It is connected to the auxiliary input of the indicator and to the third information input of the display unit, the fourth information input of which is connected to the second output of the self-monitoring unit. 2. The device according to claim 1, characterized in that the self-control unit comprises a series-connected AND multi-input element, the first trigger and the first multivibrator, the output of which is the first output of the self-control unit, is sequentially connected

Description

stucco second trigger and second multivib; a), the output of which is the second output of the self-control unit, the inverter unit, wherein the clock inputs of the first and second triggers are combined and are the control input of the self-control unit, the input of the second trigger is an additional

the input of the self-control unit, with one group of inputs of the multi-input element And and the inputs of the inverter unit being the inputs of the corresponding self-control unit signals, the other group of inputs of the multi-input element I connected to the outputs of the inverter unit.

one

The invention relates to radio engineering, specifically to the field of radio relay communication systems, and can be used for remote or local centralized control over the operation of equipment of radio relay stations, as well as radio transmitting and radio receiving stations, repeaters, etc.

The purpose of the invention is to enhance the functionality by providing an assessment of specific parameter values.

Fig. 1 shows the structural electrical circuit of the device for monitoring the equipment of radio relay stations; in fig. 2 is a structural electrical circuit of the display unit; in fig. 3 is a structural electrical block diagram of self control; in fig. 4 - an example of the implementation of the device using a special processor; in fig. 5 is a structural electrical interface circuit; in fig. 6 - timing diagrams for the operation of the device.

The device contains (Fig. 1) the first switch 1, the first synchronization unit 2, the second synchronization unit 3, the first communication channel 4, the distributor 5, the indication unit 6, the second communication channel 7, the reference level sensor 8, the second switch 9, the converter 10 voltage-time interval converter 11 time interval — digital code, third communication channel 12, comparison unit 13, switch 14, tolerance unit 15, self-checking unit 16, memory unit 17, indicator 18.

The display unit 6 contains (FIG. 2) the first matrix 19 of the display elements, the second matrix 20 of the display elements, the first element And 21, the second element And 22.

The self-control unit 16 contains (FIG. 3) the My-input element I 23, the first trigger 24, the first multivibrator 25, the second trigger 26, the second multivibrator 27, the inverter unit 28.

A device for monitoring the equipment of radio relay stations operates as follows.

The inputs of the first switch 1 device (Fig. 1) are connected to the outputs of the signal sensors placed on the station

which give discrete signals (“O or“ 1). The first switch 1 alternately supplies these signals to the input of the second communication channel 7 (Fig. 6B).

The second switch 9 alternately supplies analog converter signals to the input of the converter 10, taken from measuring sensors located in the monitored equipment (Fig. 6, B). From the master of the second synchronization unit 3 to the slave first synchronization unit 2

5, the clock pulses are transmitted on the first channel 4 (FIG. 6, A), as well as the initial setting pulse "Reset.

The inputs of the distributor 5 receives the address codes of control points of the second

0 of the synchronization unit 3 (the control point is a two-dimensional characteristic that determines the position or place of the corresponding sensor in the system being monitored and the type of parameter being monitored - voltage, signal level, signal

5 fires, etc.).

At the same time, on the corresponding outputs of the distributor 5, zero-level pulses appear alternately (Fig. 6, D), which control the operation of the display unit 6, providing coordinate "sweep of information, and the inclusion of the display elements is carried out while simultaneously receiving signals to the information inputs 1 , 4 and 2, 3 respectively (logic

5 "And). In this case, the matrix 19 or 20 of the display elements can operate according to the principle of dynamic indication or contain a memory cell for each display element.

At the output of the Converter 10 (Fig. 1)

0, pulse width modulated signals are generated. On the output pitch of the converter 11, a code is generated whose value corresponds to the value of the parameter being monitored.

To increase the reliability of the control, the system provides for the introduction of calibration levels into a sequence of discrete and analog signals. The calibration signals, along with the rest of the signals, pass the entire control path (communication channels, converters), and are distorted by interference; therefore, checking these signals in block 16 makes it possible to assess the correct functioning of the system components (communication channels, converters, synchronization blocks).

At the second output of sensor 8, a calibration analog level is formed (corresponds, for example, to "100%), and at the first output, a control discrete level (for example," O). The input bus of the block 16 (Fig. 3) is branched inside the block 16 as follows. The code bits from the output of the converter 11 are fed to the AND 23 input input element 23 directly if they must be equal to "1 in the calibration signal, or through inverter unit 28 if these bits are equal to" O in the calibration signal.

At the moment the calibration signal passes at the output of the multi-input element I 23, it appears "1 if the code is normal, or" O if it does not. This signal is recorded in the first trigger 24 by the pulse Record, which is removed from the auxiliary output of the distributor 5, and the state of the first trigger 24 does not change until the next monitoring cycle.

The first multivibrator 25 generates an intermittent “Error control with a period of 1 + 2 s, if its input is level“ O. The “Control error” signal causes the corresponding alarm and measurement indicators to flash in block 6 and indicator 8.

The test of the control discrete bit is performed similarly. At the moment of its occurrence, the output of the second communication channel 7 is recorded in the second trigger 26 (FIG. 3), which controls the second multivibrator 27.

At the outputs of the first synchronization unit 2 (Fig. 1), a code of addresses of control points is generated. These signals switch the first switch 1 and the second switch 9.

Discrete signals pass through the first switch 1 (two-level: "O or" 1 in Fig. 6, B), and (through the second switch 9 - analog, Fig. 6, C). The discrete signals are transmitted via the second communication channel 7 and are fed to the display unit 6. The analog signals in the converter 10 are subjected to conversion to pulse-width modulated pulses (Fig. 6, D), which provides increased noise immunity when transmitting the control information via the third channel 12.

The latitude-modulated signal is converted into a digital code in the I converter. The data code obtained in this way is used for two types of information processing: tolerance assessment, sampling measurements.

The tolerance estimate is performed in block 13, where two binary numbers are subtracted: the parameter value and the tolerance value for this parameter. The values of the up to start-up synchronously come from a block of 15 tolerances.

The result of the comparison is expressed by one binary bit ("1 is less than the tolerance," O is greater or equal) and is fed to the display unit 6 for display.

For selective measurements, the data code is rewritten into the register of the memory block 17 and displayed on the indicator 18.

The recording is controlled by applying the corresponding pulse, taken from one of the outputs of the distributor 5, to the control input of the memory block 17. This is done using switch 14, set it to

5 position corresponding to the selected control point.

The capabilities of the proposed device for monitoring radio relay equipment greatly expand when the processing of control signals

 It is manufactured using a computer (special processor, Fig. 4).

In this case, the interface unit 29. interface, special processor 30 and display unit 31 perform the functions of comparison unit 13, tolerance unit 15, self control unit 16 and display unit 6 together, as well as additional functions, such as comparing data codes with upper values tolerances; comparison of data with tighter tolerances, besides the main ones, in this case tendencies to deterioration of parameters can be detected in advance and measures taken to prevent possible equipment failures; data can be stored, recorded on an external printing device, subjected to statistical processing.

The interface block 29 (Fig. 5) operates as follows.

The special processor 30 issues an address code to the control input bus of block 29.

0 control points, which is fed to the inputs of the block 32 match. In this case, special processor 30 is in standby mode. At the moment when the issued code coincides with the current address code arriving at the clock input bus, block 32 outputs a pulse, through which the data code arriving at the information input bus is written to register 33.

At the same time, recording is made into one of the bits of the register 33 of a discrete signal from the output of the second channel 7, which arrives at the input of the interface unit 29. The special processor 30 receives this data and provides the following address code, etc. The special processor 30 is made, for example, on the basis of a micro-computer.

Block 31 (Fig. 4) is made in the form of a television display on which a table of states of monitored parameters is formed.

The capabilities of the system can be significantly expanded if a printing device and a block of long-term memory (for example, a magnetic disk drive) are connected to the special processor 30.

In addition to the parameter table, a mnemonic diagram can be formed on the display reflecting the structure of the monitored equipment.

The proposed device can be used for telecontrol with one main station (for example, a node) equipment located at several intermediate stations dispersed along a radio relay line.

In this case, each intermediate station, containing the first switch 1, the first synchronization unit 2, the second switch 9, the converter 10 and the sensor 8 (Figs. 1 and 4), is connected by two separate communication channels 7.1-7 and 12.1-12, where and is the number of monitored stations (corresponds to the second channel 7 and the third communication channel 12 in Figs. 1 and 4) and one common synchronization channel (corresponds to the first channel 4 in Fig. 1

and 4) with the main station where the remaining units of the device are located.

At the same time, the first communication channel 4, passing through the entire monitored section of the radio relay line, must have a separate output at each intermediate station, which ensures simultaneous feeding of synchronizing signals to the units of the device located at different stations.

The control signals from the intermediate stations are processed at the main station alternately, which is realized by introducing two additional switches (not shown), with the outputs of channels 7.1-7p being connected to the corresponding inputs of the first additional switch.

switch, and the outputs of channels 12.1 - 12 "to the inputs of the second additional switch, the output of which is connected to the input of the converter 11 time interval - a digital code. Exit first

An additional switch is connected to the inputs of the display unit 6 and the self-control unit 16 (Fig. 1) or to the input of the interface unit 29 (Fig. 4).

Additional switch control slots are merged and connected

to the output bus of the second synchronization unit 3.

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Exercise S.

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Claims (2)

DEVICE FOR MONITORING EQUIPMENT OF RADIO-RELAY STATIONS, containing the first switch on the transmission, the inputs of which are the first inputs of the device for monitoring the equipment of radio relay stations, the first synchronization unit, the outputs of which are connected to the control inputs of the first switch, and the second series synchronization unit is connected in series, the clock output which is connected to the input of the first synchronization block through the first communication channel, the distributor and the display unit, while the first information input is and the display is connected to the output of the first switch through the second communication channel, characterized in that, in order to expand the functionality by providing an assessment of specific parameter values, the display unit is made in the form of two And elements and two matrixes of display elements, the control inputs of which are combined and are control inputs of the display unit, the information input of each matrix of display elements is connected to the output of the corresponding element And, the inputs of the elements And are respectively the first, fourth, the second and third information inputs of the display unit, the reference level sensor is introduced into the device for transmission, the first output of which is connected to one of the inputs of the first switch, the second switch and the voltage converter are connected in series — time interval, while the second output of the reference level sensor is connected to one from the inputs of the second switch, the remaining inputs of which are the second inputs of the device for monitoring the equipment of radio relay stations, and the control inputs of the second switch are connected inens with the outputs of the first synchronization unit, at the reception - a series-connected converter the time interval - a digital code, the input of which is connected to the voltage converter output - the time interval through the third communication channel and the comparison unit, the output of which is connected to the second information input of the display unit, switch, inputs which is connected to the corresponding outputs of the distributor, a tolerance block, the outputs of which are connected to other inputs of the comparison unit, and the inputs to the outputs of the second synchronization unit and, a self-monitoring unit, a memory unit and an indicator connected in series, while the control input of the memory unit is connected to the output of the switch, the information inputs are connected to the outputs of the converter a time interval is a digital code that are connected to the information inputs of the self-monitoring unit, the additional input of which is connected to the output of the first switch through a second communication channel, the control input of the self-monitoring unit is connected to the corresponding output of the distributor, the first output is connected to an additional input the torus and to the third data input of the display unit, the fourth information input of which is connected to the second output of the self-monitoring unit. 2. The device according to π. 1, characterized in that the self-monitoring unit contains a series-connected multi-input element And, the first trigger and the first multivibrator, the output of which is the first output of the self-monitoring unit, the second trigger and the second multivibrator sequentially connected 1172037, the output of which is the second output of the self-monitoring unit, the inverter unit, while the clock inputs of the first and second triggers are combined and are the control input of the unit self-monitoring, the input of the second trigger is the additional input of the self-monitoring unit, while one group of inputs of the multi-input element And the inputs of the inverter unit are inputs of corresponding signals of the self-monitoring unit, another group of inputs of the multi-input element And is connected to the outputs of the inverter unit.