SU1348252A1 - Arrangement for remote monitoring of condition of switches and signals - Google Patents

Abstract

The invention relates to railway automation. The purpose of the invention is reliability. The device contains a receiver 16, the output of which is connected to the first input of the trigger 23 and the input of the element 26, the other input of which through the one-shot 28 is connected to the distributor 18 and the input of the reset unit 20, and the output to the inputs of the gate pulse selection and trigger 51 22, the output of which is connected to the input of the counter 46, the other input of which is connected to the second output of the distributor 18. The output of the counter 46 of pulses through the deparator 36 is connected to the input of the switch 32, the output of which is connected to the input of the control unit 34 the health of the sensors 7–9 of the arrows and signals, and the other input — with the output of the imager 31 of the code of the last control object. The output of block 51 is connected to the second input of the trigger 23 and through the pulse counter 47 to the first input of the switch 33 and the INPUT of the reset unit 21. The memory unit 41 is connected to the pulse counter 45, through the switch 33 to the third output of the distributor 18 and the decoder 37 connected to the counter 44 pulses. The output of memory block 41 is associated with block 43 of the indication of the state of arrows and signals, to which receiver 16 is also connected via i (L-VHz Ofteim Commoojm

Description

rpurrepbi 23-25 TI-elements Ullti jO and I 27. Thanks to new elements, the device regularly monitors the healthy state of sensors 7–9 s; tol) shooter and hignov,

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The invention relates to railway automation and can be used to continuously monitor the state of the arrows and the signals and parameters of the auto-lock.

The purpose of the invention is reliability.

The drawing shows a functional diagram of the device telecontrol,

The telecontrol device of railway automation facilities contains a 1 t receiver at each control object: 1kt pulses, an input connected to the output of generator 2 and to line 3 of communication. The output of the receiver 1 clock pulses is connected to one input of the element 4 and through the reset block 5 to the single input of the distributor 6 of the control object, the outputs of which (except for one connected to the input of the generator 2 directly) are connected via sensors 7-9 of the arrows and signals to the input of the generator 2, the driver is connected to the input power supply 11, and the output to another input of the element H 12 and to another input of the trigger 13, the output of the element 12 connected to one input. One input of the second trigger 13 is connected to another input of the el H 4 and to the output of the first trigger 14, the input connected to the auxiliary output of the valve 6 of the control object. Element OR 15 is connected by its inputs to the outputs of elements And 12 and 4, and the output is connected to another input of the distributor 6 of the control object.

At the control room, the device contains a receiver 1 $, a generator of 17 clock pulses connected to the input of the distributor 18 of the control tower, the first output of which is through a linear generator 19

monitoring the reception of information on all obt-forts of control and reliable recording and displaying a larger volume of information on the state of the arrows and signals.

1 W1.

3 is connected to the terminal and to the input of the receiver 16, reset blocks 20 and 21, triggers 22-25, And 26 and 27 elements, one-shot 28 and 29, prohibition element 30 5, the last control object code generator 31, switches 32 and 33, unit 34 for monitoring the health of sensors 7-9 of arrows and signals, decoders 35-37, individual elements 38-40 for monitoring the health of sensors 7-9 of arrows and signals, memory block 41, comparison unit 42, display unit 43 states of arrows and signals, counters 44-47, delay element 48, additional generator 49, driver 50 iruyuschih pulses unit 51 select gate pulse sequence, an OR gate 52.

 The first input of the trigger 23 is connected to the output of the receiver 16 and one input of the third element And 26, its second input is connected to the input of the counter 47 and the output of the gate sequence selection block 51, and the two outputs of this trigger are connected to the first and second inputs of the trigger 24, the third input which is connected to the output of the comparison unit 42.

The three (second to fourth) inputs of the gate sequence selection unit 26 are connected respectively to the three outputs of the gate driver 50, the gate pulses, three of which are connected to the mains.

The input of the one-shot 28 is connected to the first output of the distributor 18 control station, and its output to another input element And 26, the output connected to the first input of the block 51 selection of gating pulses and one input of the trigger 22, the output connected to one input

5 counters 46 and signal input ele5

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The barring element 30, the control input of which is connected to the output one-way operation 28.

The outputs of block 31 settings connected to the corresponding address inputs of the first switch 32, the information input and output connected respectively to the outputs of the decoder 36 to the input of the block 34.

The setting unit 31 is, for example, a set of removable jumpers connected between the common power supply bus and the corresponding address inputs of the switch 32. Each jumper is awarded a number corresponding to the weight of the address input of the switch 32.

The second output of the distributor 18 is connected to another input of the counter 46 by the outputs connected to the inputs of the second decoder 36. The outputs of the first decoder 35 are connected respectively to the same inputs of elements 38-40, the other inputs of which are connected to the output of the prohibition element 30. One and the other outputs of the counter 47 are connected respectively through a reset unit 21 to the fifth input of the gate sequence selection unit 51 and to the first inputs of the switch 33, the outputs of the memory unit 41 connected to the data inputs and to the same inputs of the comparison unit 42, other inputs connected to the display unit 43 and the outputs of the memory unit 41, the address inputs of the address pulses connected via the counter 45 to the generator output 49 and through the delay element 48 to the input of the counter 44, outputs connected to the inputs of the decoder 37. The first and the second outputs of the decoder 37 are connected respectively to the first and second inputs of the switch 33, the third input of the distributor 18 connected to the third output.

The third output of the decoder 37 is connected to the fourth input of the trigger 24, the first input of the trigger 25 and one input element And 27, another input connected to the output element OR 52, one input connected to the trigger trigger 25. the second input of which is connected to the output of the reset unit 20, the third to the output of the comparison block 42, and the fourth to the output of the trigger 24 connected to the other input of the element OR 52 and through

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one-shot 23 to the input of the memory block 41 of the memory.

Device telecontrol objects. railway automation works as follows.

At the control room, clock pulses appear at the output of the clock 17 at the first output of the distributor 18, the series of which are separated by time intervals. These pulses act on the input of the linear generator 19, as a result of which the clock pulses filled with the frequency fy enter the line (about 3 connections).

At the control object, the clock pulses are sensed by the receiver 1, where they are converted into post-clock pulses and through the element 4 and the element 15 or 15 are fed to another input of the distributor 6, for example, made on the basis of a binary counter. When the first clock pulse is received by the signal from the additional output of the distributor 6, the trigger 14 is set to one, which removes the blockage from the generator 2 of the control object (connection is not shown) and the trigger 13, and And 4 closes. From the first arrival of the control pulse of the driver 10, the trigger 13 is set to one and opens element I 12. At the same time, the control pulses of the driver Yu, for example, with a follow-up period of 0.01 s begin to flow through the element OR 15 to another input of the distributor 6 and this control object begins to transmit information. When the first control pulse arrives, the signal from the distributor 6 is fed directly to the input of the generator 2 and, via line 3, the receiver 16 senses the current pulse with frequency fj, which is used to tune the gate pulse selection unit 51 at the control point. Consequently, the second trigger 13 and the first element And 12 exclude the sending of a training pulse shortened in duration.

The number of information pulses transmitted to the dispatcher station is determined by the number of sensors turned on. In this case, sensors 7-9 are present at the monitoring object. In the general case with t-channel rass-.

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It is possible to transfer information about the T-1 parameters to the Gwedeliegeke. At the occurrence of the last control pulse, the distributor 6 returns the trigger 14 n the initial zero

state, black with J trigger 13

the generator 2 blocks - is set to the initial zero. The state and closes the element 12, the control pulses in the distributor 6 is stopped and; and {protollaet to work from taps of the eV through the opened element and 4, in a similar way other objects of the control work in other tactals o6j-.f; KTa which: r is determined by lio iepO; -1 channels of the distributor, connected to the counting input of the trigger 14. th time tskovs number. In d, 1IP11011, HiiTt, batching block 3, discharge exp; batt; the distributor 6 into the initial system of the digital signaling is (one action of the front edge of the clock pulse at the top of one gmchibrator 28); ae 1 C DI hschiyy pulse dsn- TejrbHocTf .i) J and - chpig ,,;. J 0 ,, Ilsae of the beginning of the v. –D. Of that line and 1Т1ul (-, the first tuning iiMiyiyiic frequency generator: f from the next object arrives from line 3. B t inltm.: Om i fi pulse 4O3 / i.e.circumulates through the opening of the yy: wiyu with impulses on G | bottom 1bratcher 2B,) .1leme1t I / b to 51 choices of building igshull

and pa trigger

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The specified H Иг Igtor, tapped the impact on one input (synchronization input), retains the I state, and keeps it in the zero state until the beginning of the next clock pulse. When it receives an impact from the reset unit 20 on the other (setup) input, it results the initial unit C (jc-toe, therefore, single-impactor 28 allowed e1 to isolate a tuning pulse, including block 51, which ensures an increase in reliable received data and information. Trigger 22 at the same time fixes the presence of a tuning pulse in each cycle The trigger trigger 22 is recorded by a counter 46. Three (by the number of supply phases) voltages with a period of 0.0205 are shifted relative to each other by 120 are received at the inputs of the imaging unit 50. However, three pulse sequences with a period of closure are present at its output 0.01s, shifted relative to each other by 120. When the tuning pulse from the receiver 16 through the third element I 26 and the pulse of one of the sequences of the former 50 coincide, the block 51 is triggered. Selected

the sequence of ig-1 pulses from it goes into the gate to the counter 47 with the capacity m, which until the next clock cycle is completely filled and, reset to the initial state with the help of the reset unit 21, returns the block 51 to the initial state. Thus, in each clock cycle, counter 47 enters a series of gating pulses, of which all but one are working. The numbers of these books, owls coincide with the numbers of informational ones. Next, the inmadi enters the indication channels, ka, one of which contains one block 43 of the indication of

s then} -; and arrows and signals, displaying the measure number, i.e. the number of the control object from which information is being eaten, and several indicators, about ;; the numbers of the controlled

0 parameters (not shown).

The recording and display of incoming information is as follows.

Generator 49 address pulses

. produces a sequence of pulses, the frequency of which is k + 1 times higher than the frequency of gating pulses, where k is the number of indicators. At the beginning of each strobe pulse, counters 45 and 44 are reset (the corresponding link is not shown). The binary code from the outputs of the counter 45 is supplied to the address inputs of the memory block 41, made, for example, on the basis of an online memory of a device containing at least k memory cells and is in read mode. Thus, as the counter 45 is filled, for each period of the strobe pulses, the k memory cells of block 41 are scanned. One part of the memory cells (their number is equal to the number of indication channels) is intended for

q tact (numbers of the object of control), and a friend - to record the numbers of controlled parameters.

If in any cycle (for example, a volume) an information name of 0 is transmitted

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pulse, then under the action of the corresponding gate pulse, sent to the second input (synchronization input) of the trigger 23, will be recorded in it 1. After resetting the counter 44 and before the next pulse from the generator 49, the address pulses at the first output of the decoder 37 receive a Wits signal, which will have an impact IQ. fourth input (synchronization input) on the switch, whereby the output of the control unit 18 is connected to the data inputs of the memory unit 41. Under the action of the first successive pulse, coming from the generator 4, at the output of the decoder a signal is generated, which is fed to the input (synchronization input) of the trigger 24 of the first indication channel. and writing in it 1, since 20

trigger 24 is reset. However, prior to resetting trigger 24, trigger 25 will have time to set, since a signal arrives at its first input (synchronization input), and trigger 24 has not yet managed to be reset, and the fourth and third inputs (1 inputs) of trigger 25 arrive 1. Since trigger 25 cocked to reset flip-flop 24, then the signal that energizes block 43 will come from the direct output of flip-flop 25. If later on in this step, trigger 23 is cocked, then trigger 24 will also be cocked and provide further

The first input (1 input) of this trigger from trigger 23 is supplied 1. At the same time, the one-shot 29 produces a short pulse that enters the recording input of memory 41 of block 41 and periodically excites block 43. and puts the latter into recording mode. If in this cycle the trigger 23 does not, as a result, write the number of the cycle to its cell with the address 0001, the code of which is fed from the third output of the distributor 18 of the control room to the first (set-point) simultaneous input of the reset signal.

will be cocked (there is no information), then trigger 24 will not be cocked, and at the end of the measure the trigger will also be reset.

but trigger 21 is activated (link not shown). After the end of the short pulse, the memory unit 41 goes into a read mode and the code of the recorded clock number is fed to the information inputs of all the display units. In this case, single signals from the third output of the decoder 37 directly and from the output of the trigger 24 through the OR element 52 are fed to both inputs of the AND element 27, with the result that of all the indicators only the indicator 43 of the first indication channel is energized.

At the beginning of the next cycle, block 20 resets trigger 23, affecting its third (setting) input, and trigger 25, affecting its other (setting) input.

By analogy, recording is carried out in subsequent display channels. At repeated arrivals of the fifth cycle, whenever a signal is extracted at the second output of the decoder 37, a single signal also appears at the output of the comparison block 42, since the code of the number of the clock from the outputs of the switch 33 is fed to the single inputs of the comparison block 42, and on others - the code

the same number from the outputs of the memory block 41. Moreover, at the very beginning of the cycle, the trigger 23 has not yet been cocked, therefore the prohibiting potential is applied to the first input (1-input) of the trigger 24, and to its second and third inputs (K-input) - allowing, in view of which the signal arriving on

fourth input (sync input),

trigger 24 is reset. However, prior to resetting trigger 24, trigger 25 will have time to set, since a signal arrives at its first input (synchronization input), and trigger 24 has not yet managed to be reset, and the fourth and third inputs (1 inputs) of trigger 25 arrive 1. Since trigger 25 cocked to reset flip-flop 24, then the signal that energizes block 43 will come from the direct output of flip-flop 25. If later on in this step, trigger 23 is cocked, then trigger 24 will also be cocked and provide further

periodic excitation of the block 43. If in this cycle the trigger 23 is not the first (set) input, the reset signal is received.

periodic excitation of the block 43. If in this cycle the trigger 23 is not the first (set) input, the reset signal is received.

will be cocked (there is no information), then trigger 24 will not be cocked, and at the end of the measure the trigger will also be reset.

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which will lead to the termination of excitation of block 43.

Similarly, the recording of numbers of monitored parameters in the memory cells of block 41 is carried out. Before writing to these cells, the third output of the decoder 37 produces a signal that switches the switch 33 into a mode in which the information at the data inputs of the memory block 41 comes from other outputs of the counter 47.

The monitoring of the operability of the device of control objects is performed as follows.

During normal operation of devices of all control objects in each clock cycle, under the action of the leading edge of the tuning impulse, trigger 22 will be triggered, the signal from the output of which acts on the signal input of the inhibit element 30, the control input of which receives a signal from the output of the one-shot 28. the inputs of the prohibition element 30 at the beginning of each clock cycle of single signals, and then zero signals leads to the fact that at its output during

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of the entire clock pulse and the next E11 terminal, zero potential will be present. When receiving a tuning pulse from the last control object, for example, the fourteenth (when the last clock pulse is in the series), the fourteenth output of the decoder 36 shows a single potential through the switch 32 (the address inputs with weights of codes 2.4 and 8 by means of the driver 31 connected to a common power supply bus, i.e., block 31 is set to fourteen control objects) B1; light-1 block 34. Individual display elements 38-40, the number of which is equal to the number of control objects, are switched off during the whole time . In the long (m interval at the third output / hex of the distributor 18, a single impulse occurs, under the action of which the counter 46 is set to the initial zero state and the block 34 is turned off.

Thus, the normal operation of the devices of all control objects in the display area is controlled by non-continuity gel switching by turning on the display unit 34 with elements 38-40 turned off.

In the event of a malfunction. For example, at the control object, the device’s operation until the second clock pulse will be similar to that described. When the second clock pulse arrives, the one-shot 28 will normally turn on, but due to a fault at the second control object, the trigger 27. will not trip. and, consequently, at the output of the prohibition element 30, according to a single pulse, the element 39 (element of the second control object) turns on, since at the second output of the decoder 35 at this moment there is zero potential. In this case, the counter 46 will not calculate a single pulse, and therefore its outputs will contain a code corresponding to the number of control objects reduced by one (in general, reduced by the number of unworkable control objects). Consequently, the codes at the output of the counter 46 and at the address inputs (determined by the driver 31) of the switch 32 do not match, block 34 does not turn on.

Thus, the fault on any control object is fixed

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At the control room, switching on the corresponding individual control element with the block 34 turned off.

Claims (1)

Invention Formula A telecontrol device for the state of arrows and signals containing a distributor installed in the control room, the input of which is connected to the output of a clock pulse generator ICOB, a one-shot, a delay element, a gate generator, a pulse sequence selection unit, pulse counters, reset blocks, triggers , the unit for monitoring the health of sensors of the state of arrows and signals, the unit for indicating the state of arrows and signals, the elements of and the output of one of which is connected to the input of the display unit with This is not the arrows or signals, the comparison unit and the receiver, whose input is connected to the communication line, and the output to the first input of the first 1rigger and the first input of the second element I, the output of which is connected to the first input of the second trigger and the first input of the selection unit ps of the sequence gating pulses, the other three, the gates of the gating pulses connected to the output of the gating device, and the output to the V-ry input of the first trigger and the input of the first pulse counter, the output of which through the reset unit is connected to the fifth strobe pulses, the second input of the second element H is connected via a one-shot to the first output of the distributor connected to the input of the second reset unit, the output of which is connected to the third input of the first trigger, two outputs of which are connected to the two inputs of the third trigger, connected by an input the output of the comparison unit, and to the second input of the second trigger, the output of which is connected to one input of the second pulse generator, the other input of which is connected to the second output of the distributor, characterized by then, with the purpose povsh1eni reliability, it is provided an additional pulse generator, additional pulse counters, decoders, the last object code generator II134 control, switches, an additional one-shot and a trigger, an OR element and a memory unit, address inputs connected to the outputs of the first additional pulse counter, the input connected to the output of the additional pulse generator connected through a delay element to the input of the second additional pulse counter, outputs of the connected to the inputs of the first decoder, the first and second drives of which are connected respectively to the first and second inputs of the first switch, the third input of which is connected The third to the second output of the first pulse counter, and the output to the data input of the memory unit and one input of the comparison unit, another input connected to the output of the memory unit connected to the input of the indicator indicating the state of arrows and signals, but Editor M. Kelemesh Compiled by I. Abramova Tehred I.Popovich Proofreader A.Zimokosov Order 5157/19 Circulation 455 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 12 The third drive of the first decoder is connected to the 4eTBepTONry input of the third trigger, the first input of the additional trigger and the first input of the first element AND, the second input of which is connected to the output of the OR element, one input of which is connected to the output of the additional trigger, the second input connected to the output of the second reset unit, the third input - to the output of the comparison unit, and the fourth - to the output of the third trigger connected to another input of the OR element and, through an additional one-shot, to the recording input of the memory unit, and the second input second decoder connected to an output of the first pulse counter, and the output - to one input of the second switch, the other input connected to the output of the last course of control object, and the output - to the control unit serviceability state sensor switches and signals.