SU1110313A2 - Multichannel control device - Google Patents

Abstract

A DEVICE FOR MULTI-CHANNEL CONTROL according to bus “St.” -№ 426236, which is distinguished by the fact that, for the sake of certainty, the device has a blocking node, made on triggers and elements OR-NOT, the outputs of the first and second elements OR-NOT are connected to the reset inputs of the first and second triggers, respectively, the inverse output of the first trigger and the direct output of the second trigger are connected respectively to the first and second inputs of the third element SH-NON, the output of which is connected to the first input of the first element OR-NOT, the direct output n the first-. the trigger is connected to the counting input of the second trigger and the first input of the second element OR-PE, the second inputs of the first and second elements OR are NOT combined and connected to the first output of the distributor of the third coordinate of the matrix, the counting input of the first trigger and the output of the third element ORINE are connected respectively between the output of the analyzer and the combined inputs of the block of deviations of the information and the emergency-protection node

Description

 The proposed device relates to telemechanics, can be used for multipoint monitoring of parameters of various equipment

- the amplitude-frequency signals of the sensors and is an improvement of the known device according to no. 426236

The device according to aut. Sv No. 426236 contains a multi-channel alternating current switch, the first two inputs of which are connected respectively to the outputs of the distributor of the first coordinate of the matrix and the distributor of the second coordinate of the matrix, the first input of the distributor of the first coordinate of the matrix is connected to the output of the clock generator, whose input

connected to one of the outputs of the circuit, a remote control, the second input of which is connected to the second outputs of the distributors of the first and second coordinates of the matrix, the third inputs of which are connected to each other, and the second

) & Their exits are connected to the first two

00 inputs of the indicator, the third output of the distributor of the first coordinate of the matrix is connected to the first input of the distributor, the divider of the second coordinate of the matrix, the analyzer is connected to the first N input of the emergency protection node and input; Due to the deviations of the information ICT, the output of the last is connected to the second.

/ eye input of the automatic operation control circuit, the second output of which is connected to the second input of the emergency protection node, the distributor of the third coordinate of the sodium | the first input of the second one is connected to the third output of the second coordinate coordinator matpatQii second input - to the second input of the second coordinate distributor, the third - to the third input of the second coordinate distributor of the matrix and the second output of the automatic control circuit, the second input of which is connected to the third output of the third coordinate distributor mat sockets, the second outlet of the distributor of the third coordinate .matrnts is connected to the third input of the switch, the output of which, as well as the third output of the remote control cxej-sh and vy automatic output control circuits are connected respectively to three WMOs .dami anapizatora

The disadvantages of the prototype are that an accidental change in the sensor signal due to a short-term loss of contact in the sensor circuit of the device or due to the occurrence of interference on one of the device's inputs is recorded by the OTKJSO information block as valid.1 the deviation of the sensor signals and is processed by the serving LRM

The purpose of the invention is to increase the reliability

This is achieved by introducing a blocking node into the device for multichannel control: according to driver No. 426236. A node is connected which is connected between the output of the analyzer and the combined inputs of the information deviation unit and the emergency alarm node, the control input of the blocking node is connected to the first distributor output of the third coordinate matrices

The blocking node is made on the triggers and OR-NOT elements, the outputs of the first and second elements are connected to the reset inputs of the first and second triggers, respectively, the inverse output; ; the first trigger and the direct output of the second trigger are connected respectively to the first and second inputs, the third element OR NOT, the output of which is connected to the first input of the first element OR NOT, the direct output of the first trigger 1 is connected to the counting input of the second trigger and the first the input of the second element OR NOT, the second inputs of the first and second elements OR NOT

combined and connected to the control input of the blocking node, the counting input of the first trigger and the output of the third element OR NOT are respectively the information input and the output of the blocking node

The introduction of an additional blocking node makes it possible to fix the occurrence of signals of deviations of the parameters of the sensor signals and allows them to be output to external circuits only after confirmation when sensors are reconnected, which will eliminate random spurious signals, since the generated spurious signals during the first connection cycle will not be acknowledged during the second connection cycle. cycloo In this case, the operation of the prototype device will not be disrupted, all functions will be preserved, the only effect will be an increase in the time of issue of the deviation signal, Thoroe can be offset by higher SKOrOSTIs

Fig.1 is a block diagram of the device; Fig. 2 illustrates an example of the implementation of the blocking assembly; Fig. 3 are time diagrams explaining the operation of the blocking node; FIG. 4-- is an exemplary embodiment of the analyzer; Fig. 5 shows an example of execution of a block in detecting deviations in information; 6 shows an example of the implementation of an automatic control circuit; Fig. O7 is an example of the implementation of a remote control circuit.

The device contains a switch 1, a generator of 2 clock pulses, distributors of the first, second and third coordinates 3-5 of the matrix, respectively, indicator 6, analyzer 7j, unit 8 issued information deviations, alarm node 9, automatic control circuit 10, remote control circuit 11, node 12 BLOCKED

Blocking node 12 contains a double bypass trigger 13, a memory trigger 4, elements 15, 16, 17 OR-NOT "

Sensors whose amplitude and frequency of the signal are determined by the relevant parameters of the monitored equipment are connected to the key cells of switch 1 Switch I consists of several two-coordinate switching matrices, the vertical buses of which are controlled by the first coordinate distributor 3, and the horizontal buses by the second coordinate 4 Output key. 5p

The second cell located at the intersection of the horizontal and vertical tires of the matrix selected by the distributor of the third coordinate 5 is connected to the input of the analyzer 7, which contains amplitude and frequency detectors, counters of the number of deviations, and in case of a deviation of the frequency or amplitude of the sensor signal from a predetermined value, it produces quantitative information on the deviation of the frequency and amplitude of the signals to the block 12, which transmits this information if it is confirmed during the repeated cycle of the counter l block 8 information deviations and alarm node 9; Block displaying information 8 deviations and alarm node 9 send signals to an external circuit in case of accumulation of information on the amplitude and frequency deviation of sensor signals in an amount equal to or greater than the specified one and only after confirmation information node 12 when re-monitoring sensors. The erasing of false information in node 12 occurs at the moment when the last sensor is connected to the signal from the distributor of the third coordinate 5. The operation of node 12 is illustrated by a time diagram (CMOD) on which the following symbols are entered: a - pulses of the bypass end from the distributor of the third coordinate 5; b a deviation signal from the analyzer output 7; in - mm pulses at the direct output of the trigger 13; g - pulses on the direct output of memory trigger 14; d pulses. with the output element 16 SHS-NOT; e - pulses from the output of the element 17 OR-NOT; W -, the signal from the output of the element 15 OR-NEO

On the timeline, two cases are considered.

A - when confirming the signal -c analyzer output (b) when re-bypassing (valid signal), Ti, eo after the next signal of the end of bypass (a), the signal from the output of the coincidence circuit (g) to the input of the output unit of information deviations 8 is output;

B - when a single signal is generated from the analyzer output (b), a signal at the output of the matching circuit (g) is not generated, and the circuit of the confirmation block is set to the initial state 03136

standing by the end of the traversal pulse (a) o

La figo4 shows a block diagram of the analyzer 7, which contains

 shaper 18, generator 19 of imitation signals, frequency detector 20, amplitude detector 2I, counter 22 of the number of frequency deviations,

1Q counter 23 of the number of amplitude deviations

Figo 5 shows a block diagram of a block 8 for outputting information deviations, which contains a trigger

5 24 single frequency deviations, trigger 25 single amplitude deviations, trigger 26 group frequency oscillations, trigger 27 group amphitstude deviation, element 20 28

Fig. 6 shows a block diagram of the automatic control circuit 10, which contains a scatter circuit 29, a memory trigger 30, a single-mode ramp - driver 31,

FIG. 7 depicts a remote control flow chart 11 which contains a one-shot - selector 32, driver 33.

30 pulses, detector 34, one-shot 35,

The device works as follows

Frequency signal from the sensor connected by switch 1 to the input

35 of the analyzer 7 (figo4), is fed to the imaging unit 18, which forms from the sinusoidal signal of the sensor, a pulse signal, which is supplied

4Q at the inputs of the frequency 20 and amplitude 21 detectors for analysis and output. When the signal is deviated at 1W frequency and amplitude from the specified parameters to the counters of the number of deviations in frequency 45 to 22 and amplitude 23 and to the output of the block.

When filling counters to a given zng. 1, from their outputs, signals about group deviations are issued,

50 All signals of single and group deviations over one divided channel are transmitted to the input of block 12 for storage and processing, respectively. devices (FIG. 2), after

5 confirmations of the deviation signals prc re-bypassing the monitored sensors, they are transmitted to the information output unit 8 also on one divided channel. When giving the command

The remote control circuit, 11 to the analyzer input, 7 is used to send a command to the input of a form 18, which prohibits sensor signals from it, and to the input of a simulation signal generator 19 that allows it to be sent to the inputs of detectors 20 and 21 of signals imitating deviation signals with a sensor in frequency, amplitude and quantity. As a result, the detectors 20, 2 and; : gchikov 22 and 23o

In this way, a remote test of the operation of the device is carried out. generating all deviation signals. A similar check is periodically performed. Automatically upon receipt of a command from the automatic control circuit 10.

In the initial state, both the trigger 13 and 14 (FIG. 2) are set to the state of the presence of zeros at their direct outputs, at the inputs of element 5, signals 1 and O, while at its output signal O, which goes to the first input of element 16, at the first input of the element 17 also the signal g from the direct output of the trigger 13 appears. At the second inputs of the elements 16 and 17 of the zero pulses of the bypass end (a), single impulses appear at their outputs, which arrive at the reset inputs of the 13 and 14 flip-flops

When the output of the analyzer 7 arrives at the counting input of the double bypass trigger 13 single impulse pulses (b), the trigger 13 triggers, and together with them the trigger 1D since a single impulse from the direct output of the trigger 53 arrives at its counting input, which simultaneously prevents the passage Pulse end bypass (a). to the trigger input of the trigger 14o At the inputs of element 15 there will be a combination of signals O and 1, and on its output the signal O will be saved; the pulse of the bypass end (a) before the beginning of a new measurement cycle will pass through element 16 to the trigger input of trigger 13 and return it to its original state In this case, if in the second control cycle there is no confirmation of the presence of a signal rejected from the analyzer output (case B in fig 13) then the next pulse of the bypass end (a)

will pass to the flush input trigger input 1A, and the circuit will be reset. If the deviation signal from the analyzer output is confirmed in the second control cycle (case A), the thrunger 13 will again trigger and trigger the trigger 14, while at the inputs of the element 15 there will be a combination of O and O signals, and at its output a signal 1 (g), which is fed to the input of the unit 8 for issuing deviations of information for issuing to external circuits

At the first inputs of elements 1b and 17, there will be signals 1 that prohibit the bypassing of the bypass pulses to the reset inputs of the trigger 13 and 14, which will ensure that the signal of the deviation signal is returned. The circuit of the blocking block 12 returns to a similar state. the deviation of pulses to the additional installation inputs of the flip-flops 13 and 14 (in the diagram this connection is not shown),

The deviation signals from the output of the node 12 f figo5} arrive at the input of the corresponding of the triggers deviations 24-. 27, which, when triggered, pick up signals to external circuits through one divided channel and to the inputs of element K .8. When all triggers are triggered. The level of deviations from the output of the element 28 is signaled to the input of the automatic control circuit 50 to return it to the initial state.

At the end of the monitoring cycle of all the distributors from the distributor of the third coordinate 5 of the matrix, a pulse is output to the counting circuit 29 (FIG. 6), when filled, the memory trigger 30 is triggered, which outputs a signal to the analyzer 7 to prevent the sensor signals from passing through the imaging unit 18 and for the generation of imitation signals by the generator 19 of the imitation signals, as well as to the installation inputs of the executive elements of the alarm signaling unit 9 for prohibiting the output of signals from the emergency protection circuit The element deviation And 28 is given a signal to set the circuit 29 and the memory trigger 30 to the initial state, while from the output of the memory trigger 30 a signal is fed to the input of the one-vibrator-former 31, which generates the impulse to set the initial state of the coordinate distributors 3, 4 , 5, and also the signal of prohibition on the operation of the node 9 of the emergency protection and the initial state of

In the remote control of the device, pulse signals are received at the circuit input (FIG. 7), which | Q tilts for one time the presence of the one-vibrator selector 32 into a state in which it outputs a signal to the single-pulse 35 to generate reset pulses to the initial state (5 coordinate distributors 3, 4, 5 and gives permission for the passage of input pulses through the pulse shaper 33 to the clock pulse generator 2, which is synchronized by these pulses. Thus, remotely accurate addressing is performed Sensors with anomalous signals that are switched on to be monitored When the input pulses exceed the frequency of the detector’s response, the signal from the analyzer 7 is output from it, prohibiting the passage of sensor signals through the driver 18 and allowing the generation of imitation signals by the generator 1 9. the output of signals to external devices is not prohibited, then by extracting the deviation signals, the formation and issuance of 35 deviation signals

Generator 2 sets the switching speed and sensor monitoring time. Actual pulses are fed to the input of the distributor of the third coordinate 5c. 40 The distributors of the first, second and third coordinates work sequentially from each other. In the case of remote control, the frequency of the generator of active pulses can be set by 45 external generators, and it is possible to verify the settings of the analyzer in an external command to the input of the remote control circuit 11

To indicate the address of any sensor at the moment of its control, the switching potentials from the coordinate distributors are sent to the address indicator block 6o

The impulse from the third distributor, coordinates 5, which connects the last supervising sensor, is fed to the input of the automatic control circuit 10, the recalculation circuit of which provides time delay, after its discharge to the analyzer 7 input, signals simulating the deviations of the sensor signals in amplitude and frequency are sent, and the input of the alarm node 9 receives a signal prohibiting the output of the signal to the external circuit

When all elements of the unit 8 for outputting information deviations are triggered, the return signal of the automatic control circuit 10 to the initial state is generated in it by a coincidence circuit, and in the circuit 10, the initial state condition of the distributors of the first, second and third coordinates 3-5 and the node 9 alarms

The introduction of blocking node 2 and additional links into the device for multichannel monitoring improves the reliability of information about deviations of sensor signal parameters, eliminates the issuance of spurious emergency protection signals and reduces the cost of service personnel to process information.

A device for multichannel monitoring with an information confirmation block favorably differs from the prototype base device, since randomly generated deviation signals are not output at the device output, the reliability of emergency protection signals is increased, and labor costs for information processing are reduced.

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Claims (1)

<claim-text> DEVICE FOR MULTICHANNEL CONTROL on autor.St No. 426236, characterized in that, </ claim-text> </ li> </ ul> <claim-text> in order to increase reliability, a blocking node is inserted in the device, executed on triggers and OR-NOT elements, the outputs of the first and second elements OR-NOT'are connected to the reset inputs of the first and second triggers, respectively, the inverse output of the first <sup> 2 </ sup> __ of the first trigger and the direct output of the second trigger are connected respectively to the first and second inputs of the third element OR NOT, the output of which is connected to the first input of the first element OR NOT, the direct output of the first trigger is connected to the counting input of the second trigger and first entry ohm of the second element OR NOT, the second inputs of the first and second elements OR are NOT connected and connected to the first output of the distributor of the third matrix coordinate, the counting input of the first trigger and the output of the third element ORINE are connected respectively between the output of the analyzer and the combined inputs of the output unit and the node emergency protection. </ claim-text> <claim-text> The proposed device relates to telemechanics, can be used for multipoint monitoring of parameters of various equipment on the amplitude-frequency signals of sensors and is an improvement </ claim-text>