SU1517139A1 - Device for remote monitoring of duplex fixed radio stations - Google Patents

Abstract

The invention relates to radio engineering. The purpose of the invention is to increase the reliability of the control. A device for remote control of duplex stationary radio stations (DSR) / contains a control station (PC) and controlled DSBs. Remote control of the DLS is performed during the control cycle. For testing each DSM, a tone sequence is sent to the transmission line with the RS as a pilot cycle signal, a pilot signal and an alarm. With a healthy DSM, a circuit is made to allow the transmission of an alarm signal by transit from the transmission line to the receiving line. When receiving on the RS from each DSM a tone burst in the form of an alarm control signal, their condition is recorded. If, however, at least one malfunction is detected on any DSM, then the circuit for passing an alarm in transit to this DSB will not be formed and the RS will record its failure according to a generalized parameter. Further fault localization is possible via dedicated communication channels. 3 il.

Description

The invention relates to radio engineering and can be used in station equipment monitoring systems when organizing train radio communication along railways.

The purpose of the invention is to increase the reliability of the control.

FIG. Figure 1 shows the structural electrical circuit of the proposed device; in fig. 2 - voltage plots for work at the control station; in fig. 3 - voltage samples, work on a stationary radio station.

A device for remote monitoring of duplex stationary radio stations contains a generating unit 1, a first 2 and a second 3 receivers, a launch unit 4, an element 5, a distributor 6, a memory block 7, a display block 8, a software block 9, and each stationary radio switch 10 channels, the first II, second 12 and third 13 switches, the first element AND-NOT 14, memory, block 16 selection and connection, the first 17, second 18 and third 19 receivers, generator 20. block

with

21 sets the number of a controlled duplex stationary radio station, the first trigger 22, the radio channel transmitter 23, the antenna unit 24, the radio channel receiver 25, the fourth switch 26, the first 27 and the second 28 radio receivers, And 29, the fourth receiver 30, the first counter 31, the compare block 32 , the first. 33, the second 34 and the third 35 elements OR, the second counter 36, the second element AND-NOT 37, the start block 38, the second trigger 39, the fourth element OR 40 and the distributor 41,

The device works as follows.

Remote monitoring of duplex stationary radio stations is carried out during the control cycle. To check each duplex stationary radio station, a sequence of tone alarms is sent to the transmission line from the control station; ok as a control cycle signal, control signal and alarm signal (Fig 2b). The send cycle number of the control cycle signal indicates the number of the duplex fixed station radio station, the control parcel. - signal is designed to control the first receiver 17, receiving the control signal from the receiving line, and sending an alarm signal is designed to monitor a quarter first receiver 30, prish1mayuschego alarm from the receive line. In addition, the operation of the first 27 and second 28 radio receivers is monitored for each duplex stationary radio station.

receiving the control and alarm signals on the air, the operation of the receiver 25 of the radio channel, the functioning of the transmitter synthesizer 23 of the radio channel, the presence within the tolerances of the output power of the transmitter 23 of the radio channel and the standing wave ratio of the antenna-feeder path, the operation of the selection unit 16 and connection. When this duplex stationary radio station is in good condition, a circuit is made to allow the transit of the alarm signal from the transmission line to the receiving line. In addition, from each duplex stationary radio station, a control signal is sent to the receiving line (FIG. 2c from the output of the generator 20, which is essentially a low-frequency synthesizer).

five

This is necessary to objectively control the frequency of the low-frequency synthesizer of a duplex stationary radio station. When receiving at the control station from each duplex stationary radio station, the tone signal of the control signal (Fig. 2d) and the alarm signal (4ig, 2d) fixes their operability. If any duplex stationary radio station detects at least one malfunction, then the circuit for passing an alarm signal by a trizit on this duplex stationary radio station does not make up and the distribution station detects its failure according to a generalized parameter. Further fault localization is possible with the help of additional devices for transmitting the states of the memory block 15 through special dedicated communication channels.

The operation of the radio channel receiver 25 can be monitored by any method, for example, by applying a signal to its second input for switching to the function check mode. This signal in the receiver 25 of the radio channel to its first input, connected to the antenna unit 24, is supplied with a high-frequency signal of a calibrated level from the built-in generator. When the receiver 25 is healthy, the signals of the specified levels are fixed at the output of its terminal stage of the intermediate-frequency amplifier and the low-frequency output, and the signal of the generalized health of the receiver 25 (logical 1 signal) is fed to the second output of the radio channel receiver 25. If any stage of the radio channel receiver 25 is faulty, then the voltage sensor does not trigger and the logical output signal is detected at the second output of the radio channel receiver 25

The operation of the synthesizer of the radio channel transmitter 23 can be controlled by any method, for example, by applying a signal from the output of the frequency-phase detector to one of the information outputs of the radio channel transmitter 23, In this case, if there is a frequency lock, t, e, the health of the synthesizer, on this information Output 1 is present, and if there is no frequency lock, t, e, faults syn

at the information output output - signal for switching on the transceiver 23 there is a signal of the O. block of the I unit in the form of control. The control of the presence of a control signal within the limits of the signal (fig. 2h); On the transmitter output power, the fourth output, the signal for switching on the radio channel and the standing of the generating unit 1, can be altered by the alarm signal in the mode of the antenna-feeder path waveform (Fig. 2i)}

carried out by any method, in particular the fifth output - a clock signal for carrying by embedding in the transmitter the control of the operation of the distributor 6

23 radio channel of the reflectometer, signal (fig, 2k); at the sixth output - a signal from the outputs of which carry an informative generalized duplex state of the station on the output power levels of stationary radio stations (Fig, 2n);

The standing wave ratio of the antenna antenna for the seventh output, the signal for the termination of the nuclear path, goes to the inputs of the monitoring cycle (FIG. 2m),

comparators (not shown), and from the output station of the last signals sent to the information output of the launch of the control cycle from the transmitter outputs of the 23 radio channel. If the stroke of the start-up unit 4 has zeroed the output power level exceeds the limiter 6 and results in a single O1-time response, the corresponding state of the cell of the memory unit 7,

the comparator, the signal 1 from the output 20 as a result of which all the latter are ignited goes to the corresponding fault indicators

the general information output of the radio transmitter in display unit 8. By

23 radio channels, otherwise, as the control cycle of this information output passes, the transmit signals of the generalized health of the 23 radio channel are signal stationary 25 radio stations O, If the level is stationary, the corresponding antenna does not exceeds the health

threshold corresponding to each duplex stationary

the comparator, then the signal 1 from the output of the radio station, the signals of freeness of the last signal to the corresponding signal and the signal of the control cycle from the information output of the transmitter of the transmission line (Fig. 3a) are highlighted

23 radio channels, otherwise, respectively, the third receiver, 19 data outputs, the transmitter (FIG, ST), which, in the absence of the radio channel sign 23, a free signal is present, the O. of the first counter 31 is enabled, and the second is in the initial state from the output of genepik 18 (fig, Zv, g), the operations of the monitoring unit 1 are counted which are counted by the first station to the transmission line sent by the switch 31, when it reaches the first account of the free signal of the channel allocated by the switch 31 installed on the block 21 duplex stationary radiostan- Q corresponding number of comparison Qi x 32 via the third receiver 19 or 22 needs to first flip-flop in units that holds the first counter-border 31 in state, which in its zero state. When appearing on a turn, through the fourth element OR

the output of the start block 4, the start signal 40 enables the distributor 41, the control cycle (FIG. 2a). The latency distributor 41 is designed for the idleness of the communication channel, t, and generating the signals necessary for the presence of the signal I on the second remote control of this

element 5, arrives at the first input of a duplex stationary radio station: program block 9 and translates it to the first output, a signal is generated

in the mode of generating the signals needed (cf. FIG.) to switch on the generator for remote control of the dup-20 in the mode of generating emergency stationary radio stations: on the signal, to connect the output to the helix output, a signal is generated for the generator 20 to the input of the second radio switch-on the generator unit 1 from the receiver 28, as well as to zero the formation of the idle signal gc of the counter 36; at the second channel exit (FIG. 2e); at the second output, a signal is formed (FIG. Z) for the switching signal to turn on the generator part of the receiver 25 in the test mode.

unit 1 is in the mode of forming a signal; on the third control cycle (fig, 2); on the track - a signal (flg, Зж) to turn on

generator 20 to the control signal generation mode, for connecting via the third switch 13 the output of the generator 20 to the receiving line towards the control station, for disconnecting the output 25 of the receiver 25 from the receiving line with the fourth switch 26 in order to prevent the passage of noise from the first, the output of the receiver 25 to the receive line to reset the second radio receiver 28 and to make up the third element OR 35 and the second switch 12 of the circuit to pass the control signal in transit from inii transmission in the reception line (FIG Se); at the fourth output, a signal is formed (FIG. 3) for switching on the generator 20 to the mode of forming a pilot signal and for connecting with the first switch 11 the output of the generator 20 to the input of the first radio receiver 27; at the fifth output is the time interval (FIG. 3) required to monitor the fourth receiver 30 and make a circuit to send an emergency stationary radio station) At output 29 of the element 29, signal 1 appears and the selection and connection unit 16 connects the reception line from other duplex fixed radio stations35

signal transit from transmission to the line receiving line (FIG. 3c); on the neck - 30 dy to the reception line in the direction of the ordered output - the signal (fig, Sq) for the attachment station. Trigger the first 22 and second 39 triggers to the zero state,

Fig. 3l shows the diagrams of the operation in the control cycle for the second radio receiver 28, in Fig. 3m for the first radio receiver 27, in Fig. 3n for the first receiver 17, in Fig. For the fourth receiver 30,

The selection and connection unit 16 from the state of the first 17 and fourth 30 receivers and the first 27 and second 28 radio receivers, as well as from the signal levels at the first output of the radio channel receiver 25 controls the selection 16 and the connections are counted by the second counter 36, the output signal which (FIG, Zo) through the third element OR 35 constitutes a circuit for passing an alarm signal in transit from the transmission line to the reception line (Fig, 3c) through the second switch 12,

The signals from the fifth and sixth outputs of the distributor 41 are fed to the control inputs of the memory unit 15 and bring its cells to the zero state, while the signals from the output 45

the first receiver 17 through the first element OR 33, from the output of the first radio receiver 27, from the output of the second radio receiver 28, from the output of the fourth receiver 30 through the second element OR 34, from the output of the second counter 36 and from the second output of the radio channel receiver 25 when they are triggered the control cycle goes to the installation inputs of the memory block 15 and returns its cells to a single state, as a result of which, at the output of the first AND 14 element, an O signal appears that characterizes the health of this duplex station.

switch 10 channels, which connects to the reception line side of the control station or the reception line from other duplex stationary radio stations, or the second output of the receiver 25 radio channel (Fig, 3 п, р). Until the radio receiver 28 is triggered, the selection and connection unit 16 connects the reception line from other duplex stationary radio stations to the reception line towards the control station. After transferring the generator 20 to the mode of generating an emergency call signal coming through the first com

The mutator 11 to the input of the second radio receiver 28, the last one is triggered, as a result of which the selection and connection unit 16 connects the first output of the radio channel receiver 25 to the reception line towards the control station. Then, the second radio receiver 28 returns to its original state, and the selection and connection unit 16 connects the reception line from other duplex stationary radio stations to the reception line towards the control station. After the first trigger

the radio receiver 27, and in the presence of a tone signal at the output of the first switch 11, the selection and connection unit 16 again connects the second output of the radio channel receiver 25 to the receiving line towards the control station. After the fourth receiver 30 is triggered and if there is a signal O at the output of the first element AND-HE 14 (in the case of a given duplex stationary radio), the output of the element I 29 is signal 1 and the selection and connection unit 16 connects the receive line from the other duplex stationary radio station

Diy to the reception line in the direction of the station. Triggering

Diy to the reception line in the direction of the station. Triggering

ka 16 selection and connection are counted by the second counter 36, the signal from the output of which (FIG. 3) through the third element OR 35 constitutes a circuit for passing the alarm signal by passing from the transmission line to the receiving line (fig. 3c) through the second switch 12,

The signals from the fifth and sixth outputs of the distributor 41 are fed to the control inputs of the memory unit 15 and bring its cells to the zero state, while the signals from the output of the first

the first receiver 17 through the first element OR 33, from the output of the first radio receiver 27, from the output of the second radio receiver 28, from the output of the fourth receiver 30 through the second element OR 34, from the output of the second counter 36 and from the second output of the radio channel receiver 25 when they are triggered the control cycle goes to the installation inputs of the memory block 15 and returns its cells to a single state, as a result of which, at the output of the first AND 14 element, an O signal appears that characterizes the serviceability of this duplex station

stationary radio station. If at least one of the cells of the memory block 15 remains in the zero state, then at the output of the first element AND-NE 14 a signal I appears, which indicates the malfunction of this duplex stationary radio station. At the same time, at the second input of the element AND 29 there is a signal t) and the result of the state of the fourth receiver 30 is not received at the input of the block 16 for selection and connection.

The control cycle can be started directly on this duplex stationary radio station. For this, the signal from the output of the starting block 38 puts the second trigger 39 into a single state, which, in turn, through the fourth element OR 40 allows the operation of the distributor 41, then the device works the same as described, except that the operation of the first 17 and fourth 30 receivers is not monitored, and the return of the corresponding cells of the memory 15 to the single state is effected by a signal from the output flip-flop 39 through the first 33 and second 34 elements OR,

Claims (1)

Invention Formula A device for remote monitoring of duplex stationary radio stations, containing the first and second receivers INPUTS; which are connected to the reception line, the display unit, the generator unit, the output of which is connected to the transmission line, the start-up unit and the AND element sequentially connected, the first receiver on each fixed radio station, the generator and the first switch connected in series, the unit to set the number of the controlled duplex stationary radio stations, the second and third receivers, whose inputs are connected to the transmission line, and the outputs to the first and second inputs of the first counter, whose output is connected to the first input of the comparison unit, the second input of which is connected to the output of the installation unit of the number of a controlled duplex stationary radio station, the first trigger, the second and third switches, the first I-UNE element, the radio channel transmitter, whose input is connected to the line re3 39 ten jg 5 20 25 30 35 Q 50 55 cottages, an antenna unit whose input is connected to the transmitter output of a radio channel, a radio channel receiver, information input and the first output of which are connected respectively to the output of the antenna unit and the second input of the first switch, channel switch, the output of which is connected to the reception line, are sequentially connected to the fourth receiver and element And, characterized in that, in order to increase the reliability of the control, a distributor, a program block, first, second, third, fourth and fifth outlets are introduced at the control station The odes of which are connected respectively with the first, second, three and fourth inputs of the generator block and the control input of the distributor, the memory block, and the information input and output of which are connected respectively to the distributor, the sixth output of the program block and the input of the display unit, the outputs of the first and second receivers are connected respectively to the first and second inputs of the program block, the seventh output of which is connected to the setup input of the start block, the second input and output of the AND element are connected respectively, with the first output of the program block and with the installation inputs of the pamlti block, the distributor and the program block, and on each stationary radio station, the first, second, third and fourth elements of 1SH1, serially connected start block and the second trigger, whose output is connected to the first inputs of the first, the second and fourth elements OR, the block of choice and connection, the first and second inputs of which are connected respectively to the first output of the first receiver and to the output of the first switch, the memory block first th, second, third and fourth inputs and the output of which are connected respectively, but with the control outputs of the transmitter of the radio channel, the second output of the receiver of the radio channel and the input of the first AND-NOT element, the second counter, the second AND-NOT element, the first one the input and output of the boiler are connected respectively to the first output of the receiver of the radio channel and to the first input of the channel switch, the distributor, first, second, traP1 the fifth, fourth, fifth and sixth outputs of which are connected respectively to the fifth, sixth, seventh, eighth, ninth and tenth inputs of the memory block, the first and second radio receivers, whose inputs are connected to the output of the first switch, the first output of the distributor with the installation inputs of the generator, the first switch and the second counter, the control input and the output of which are connected respectively to the output of the selection and connection unit and the first input of the third OR element and the eleventh input of the memory block, the twelfth and trine The tenth inputs of which are connected respectively to the outputs of the first and second OR elements, the second output of the distributor is connected to the second input of the radio channel receiver, the third output of the distributor is connected to the control input of the fourth switch, to the second installation input of the generator, to the second input of the third OR element, the output of which is connected to the control input of the second switch, and with the control input of the third switch, the information input of which is connected to the output of the generator, and the output of the third switch with union of a receiving line, the fourth distributor output connected to the third input of the installation of the generator and to the second setting input of the first kom17139 12 the mutator, the seventh output of the distributor is connected to the second inputs of the first and second triggers, the first input and the output of the first trigger are connected respectively to the output of the comparison unit and the first input of the second AND-NOT element, the second input and output of which are connected respectively to the output the first element AND-NOT and the second input element AND, the output of which is connected to the third input of the selection and connection unit, the fourth input of which is connected to the output of the first radio receiver and to the fourteenth input of the memory unit, the fifteenth input of which is connected to the output of the second radio receiver the input of the selection and connection unit, the output of which is connected to the control input of the channel selector, the second input of which is connected to the receiving line of other duplex stationary radio stations, the information input and the output of the second comm Tatorey respectively connected to the transmission line and the first input of the receiver, sec whose output is connected to the second input of the first OR gate, the fourth input of the receiver, whose output is connected to the second input of the second SHS element, with the second input of the channel switch, the output of the first trigger is connected to the BTOiioMy input of the fourth OR element, the output of which is connected to the input of the distributor, Phage.1