SU1742841A1 - Device for monitoring of states of distributed objects - Google Patents

Abstract

The invention relates to a signaling technique and can be used in automated systems for monitoring and controlling technological and production processes for signaling the state of dispersed objects with a common wired communication line. The purpose of the invention is to increase the functional reliability of the device. To do this, the device containing the central console 1, which contains a generator of 3 pulses, a distributor of 5 pulses, executive units 6, delay element D, storage elements 7 and 8, ele ment OR 10 and element 12, linear blocks 2, each of which is made of a D-flip-flop 13, a key element 17 and a sensitive element 1b "The element 9, the element OR 11 and the bus Reset are also entered into the central console 1, and linear unit 2 introduced a D-trigger AND, an element NOT 15 and a key element, 18. The device provides control of the rigidity of the communication line and continuous monitoring of the state of the sensors. 1 il. C /) with

Description

The invention relates to a signaling technique and can be used in automated systems for monitoring and controlling technological and manufacturing processes for signaling the state of dispersed objects with a common wired communication line.

There is a device for alarming, which contains interconnected sensors and a central console, which contains a generator, a distributor, execution units and a power source. This device ensures the activation of the execution unit corresponding to the activated sensor of the state of the monitored object.

The drawbacks of the device are that when the sensor malfunctions, which lead to its false triggering, false activation of the corresponding executive unit occurs, which can also occur if the communication lines with the sensors are faulty. In addition, the device provides for continuous operation of the distributors, which leads to the continuous consumption of energy from the power source and does not allow

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use contact distributors because of their limited resource.

The closest in technical essence and the achieved effect to the proposed is a device for signaling the state of dispersed objects,

The device for monitoring the state of distributed objects contains a central console, which is made of a pulse generator, the output of which is connected to the first input of the pulse distributor, whose outputs, except the last, are connected to the first inputs of the corresponding execution units, the second inputs of which are combined, from the delay element, output which is connected to the first input of the first element OR, of two storage elements and the element AND, linear blocks according to the number of execution units, each linear block is made from the D-flip-flop, the first output of which is connected to the first input of the first key element, from the tires of zero and positive potentials and the sensing element, the output of the central console's pulse generator is connected to the C-input of the first D-flip-flop of the first linear unit. The central panel contains the elements of the Prohibition and the fire detection unit, the clock pulse selector.

The disadvantages of the known device are the lack of monitoring the integrity of the communication line, as well as the lack of continuous monitoring of the state of the sensors, which reduces the reliability of the control of dispersed objects, t o0 when the communication line is broken between the linear units (sensors) and the central console does not react sensors, as there is no signal that triggers the operation of the distributors.

The aim of the invention is to increase the functional reliability of the device.

IN DEVICE FOR CONTROL OF CONTAINMENT

nor distributed objects containing a central console, which is made of a pulse generator, the output of which is connected to the first input of the pulse distributor, the outputs of which, except the last,

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connected to the first inputs of the respective execution units, the second inputs of which are combined, from the delay element, the output of which is connected to the first input of the first OR element, of two storage elements and the AND element, linear blocks by the number of execution units, each linear block is made of the first D- trigger, the first output of which is connected to the first input of the first key element, from the tires of zero and positive potentials and sensitive element, the output of the pulse generator of the Central Panel is connected to C- the input of the first D-flip-flop of the first linear unit, the element NO, the second element OR and the Reset bus are entered into the central console, and the storage elements are made of D-flip-flop and RS-flip-flop, the second D-flip-flop is entered into each linear unit, the element is NOT and the second the key element, in the central console, the output of the pulse generator through the element is NOT connected to the first input of the element AND whose output is connected to the S-input of the RS trigger, the first output of which is connected to the first input of the element OR whose output is connected to the second input of one of the New blocks and to the second input of the pulse distributor, the last output of which is connected to the second input of the AND element and to the second input of the second OR element, the Reset bus is connected to the second input of the first OR element, the output of which is connected to the third input of the pulse distributor, with R-in D trigger and with the R input of the RS flip-flop, the second output of which is connected to the D input of the D flip-flop, the first output of which is connected to the third input of the second OR element and with the input of the delay element, the second output of the D flip-flop is connected to the third input element and in each linear block, the D-inputs of the first and second D-flip-flops are connected respectively to the positive bus and to the zero potential bus, the C-input of the first D-flip-flop is connected to the first input of the second key element and is NOT connected to the C-input of the second D- trigger, the first output of which is connected to the second input through a sensitive element

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the first key element, the second output of the first D-flip-flop is connected to the S-input of the second D-flip-flop, the second output of which is connected to the second input of the second key element, the outputs of the first key elements of the linear blocks are connected to the C-input of the D-flip-flop of the central console, the output of the first of the OR element of which is connected to the R-inputs of the first D-flip-flops of the linear blocks, the output of the second key element of each previous linear block is connected to the C-input of the first D-flip-flop of each subsequent linear block, the output of the second key lementa last line unit is connected to the C input of D-flip-flop central unit

The drawing shows a diagram of the proposed device about

The device contains a central console 1 and linear blocks 20 The central console contains a generator of 3 pulses, a delay element 4, a distributor of 5 pulses, executive units 6, two storage elements in the form of a D-flip-flop 7 and an RS-flip-flop 8, an element of HE 9, and elements of OR 10 and 11, element 12 and bus. Reset (not shown) “Linear units 2 contain D-triggers 13 and 14. element 15, element 15, sensitive element 16, key elements 17 and 18, and tires of zero and positive potentials

The device contains a central console, which is made of a pulse generator, the output 3 of the pulse generator is connected to the first input of the distributor 5 pulses, the outputs of which, except the last, are connected to the first inputs of the corresponding execution units 6, the second input of which is combined, from the delay element 4, which output connected to the first input of the first element OR 10} of the two storage elements 7 and 8 and the element 12, the linear block 2 by the number of execution blocks 6, each linear block 2 is made of the first D-flip-flop 13 , the first output of which is connected to the first input of the first key element 17, from the tires of zero and positive potentials and the sensitive element 16, the output of the generator 3 pulses of the central console 1 is connected to

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16 With the input of the first D-flip-flop 13 of the first linear unit 2, in the central console 1, the output of the generator 3 pulses through the element NOT 9 is connected to the first input of the element 12, the output of which is connected to the S-input RS of the trigger 8, the first output of which is connected with the first input of the element OR 11, the output of which is connected to the second input of one of the execution units 6 and to the second input of the distributor 5 pulses, the last output of which is connected to the second input of the element 12 and the second input of the second element OR 11, the reset bus is connected to the second first entry element OR 10, the output of which is connected to the third input of the distributor 5 pulses, with the R-input of D-flip-flop 7 and with the R-input of RS-flip-flop 8, the second output of which is connected to the D-input of D-flip-flop 7, the first output which is connected to the third input of the second element OR 11 and to the input of the delay element 4, the second output of the D-flip-flop 7 is connected to the third input of the I12 element, in each linear block the D-inputs of the first 13 and second 14 D-flip-flops are connected respectively to the positive bus and with the tire of zero potentials, the C input of the first D-flip-flop 13 is connected to the the output of the second key element 18 and through the element 15 is connected to the C-in of the second D-flip-flop 14, the first output of which through the sensitive element 16 is connected to the second input of the first key-element 17, the second output of the first D-flip-flop 13 is connected to the S-input the second D-flip-flop 14, the second output of which is connected to the second input of the second key element 18, the outputs of the first key elements 17, linear blocks

2 are connected to the C-input of the D-flip-flop 7 of the central console 1, the output of the first element OR 10 of which is connected to the R-inputs of the first D-flip-flops 13 line units 2, the output of the second key element 18 of each previous linear block 2 is connected to the C-input of the first D -trigger 13 of each subsequent linear block 2, the output of the second key element 8 of the last linear block 2 is connected to the C-input of the D-trigger 7 of the central console 1 "

The device works as follows.

In the initial state, the triggers 7 and 8 and the distributor 5 pulses of the central console 1 and the D-trigger 13 in the linear blocks 2 are set to the zero state. The D-trigger 14 of these blocks is set to 1 with the help of a Log signal ,. 1 from the inverse output of the D-flip-flop 13 Signal O from the output of the element OR 11 executive units 6 are locked, and the distributor 5 pulses allowed the counting of clock pulses from the direct output D-three - ger 14 the signal is fed to the input of the sensitive element 16,

Consider the operation of the device when the sensitive element 16 in the linear blocks 2 is open .. In this case, the key element 17 is locked and at its output the Log signal, 0 "The key element 18 is also locked with the signal from the inverse output of the D-flip-flop 14 and at its output also Signal signal is present

Moreover, the peripheral pulse distributor is made according to a sequential register scheme, the bits of which are D-flip-flops 13 and 14 of linear blocks 2 and for each bit of which 1 m is recorded alternately at the leading edge of the clock pulse. When the first clock pulse arrives from the pulse generator 3, signal Log.1 appears at the first front of the pulse distributor 5 at the first output pulse, and the D-flip-flop 13 of the first linear unit 2 transits into a single state. Since the key element 17 is locked, then at its output there is a signal Log „O.

At the trailing edge of the first clock pulse arriving through the inverter 15 to the counting input of the D-flip-flop 13 of the first linear unit 2, it goes to the zero state, the key element 18 is unlocked by the inverse output of the flip-flop 14, but the Log signal remains at its output .O, since

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at its second input at this moment of time there is a signal Log. ABOUT.

When the second clock pulse arrives at the second output pacnpt of the divider 5 of the pulses of the central console 1, the state of the D-flip-flops 13 and 14 of the first linear unit 2 does not change and the output of the key element 18 at the leading edge of the second clock appears signal, com. the leading edge of the clock pulse is repeated; In this case, the D-flip er 13 of the second linear block 2 goes into one state, and the D-flip-flop 14 goes to zero. Further operation of the second linear block 2 is similar to the work of the first linear block 2 "The operation of all subsequent linear blocks 2 is similar,

When the K-th clock pulse arrives, the K-th linear unit 2 is triggered. At the leading edge of the K + 1-st clock pulse, the Log.1 signal arrives at the first input on the K + 1-th output of the distributor 5 pulses of the central console 1 element And 12; Moreover, if the communication line between the central console 1 and the last line unit 2 is not interrupted, the signal Log, 1 from the output of the key element 18 of the last line unit 2 is fed to the counting input of the D-flip-flop 7, which goes into one state, as its D-input is present a signal Log.1 from the inverse output of the RS flip-flop 8. At that, the element AND 12 is signaled by the Log signal. From the inverse output of the D-flip-flop 7 is locked, if the communication line is disconnected, the element 18 misses the counting input of the D-flip-flop 7, which therefore does not Change is its condition, and cash CHI- Log 1 with inverted output D-flip-flop 7 is supplied to the second input element u12. At the trailing edge of the K + 1-th clock pulse, the LoGo signal from the output of the element NOT 9 enters the third input of the element 12. At the same time, the signal from Log.1 from the output of the element 12 enters the input S of the installation in 1 trigger 80

The transition of the trigger 8 in the single state indicates the presence of

breaking the communication line between the last frost block 2 and the central I ultrasound 1. The Log signal from the direct output of the trigger 8 through the OR 11 element is fed to the input of the distributor 5 pulses, prohibiting its counting, and the Log.O signal from the inverted trigger output 8 enters the B-input of B flip-flop 7, thereby prohibiting its transfer to a single state.

Transfer of the device to the working mode after the elimination of a line break in the connection between the last line unit 2 and the central console 1 is carried out by sending a Reset signal (Log 1) through the OR element 100

Consider the operation of the device, if in one of the linear blocks 2, as an example, the sensitive element 16 is closed. In this case, the klue element 17 is open and at its output there is a signal Log. O, coming from the direct output of the trigger 13. When the first clock pulse arrives from the generator 3 pulses, a Lo M signal appears at its first front on the first output of the pulse distributor 5 , and the D-flip-flop 13 of the first linear unit 2 goes into a single state. Since the key element 17 is open, then a Log 1 signal is received at its output, coming from the direct output of the D-flip-flop 13. This signal is fed through the communication line to the counting input of the D-flip-flop 7 which goes into one state, since at its D-input there is a signal | GLG, 1, coming from the inverse output of the RS flip-flop 8 "

In this signal Log. H from the direct output of the D-flip-flop 7 through the element OR 11 prohibits the counting of clock pulses by the distributor 5 pulses and allows the activation of the first execution unit 6, which fixes the state of the first output of the distributor 5 pulses. At the same time signal Log. H from the direct output of the D-flip-flop 7 is fed to the input of the delay element k, the output of which is a LoH signal. After the delay time has expired. This signal sets the central remote control 1 and the linear blocks 2 to The cycle is repeated until the sensitive element 16 of the first is opened,

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linear block 2, t ° e „not satisfied - I cause the closure of the sensitive element 16 in the first linear block 2.

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Claims (1)

Invention Formula A device for monitoring the state of distributed objects, comprising a central console, which is made of a pulse generator, the output of which is connected to the first input of the pulse distributor, the outputs of which, except the last, are connected to the first inputs of the corresponding execution units, the second inputs of which are combined from the delay element, the output of which is connected to the first input of the first OR element, from two storage elements and the AND element, linear blocks by the number of execution units, each linear block — you Complete from the first D-flip-flop, the first output of which is connected to the first input of the first key element, from the buses of zero and positive potentials and the sensing element, the output of the pulse generator of the central console is connected to the C-input of the first D-flip-flop of the first linear unit, characterized in that in order to increase the functional reliability of the device, into it in the central 5 the control panel introduced the element NOT, the second element OR and the bus Reset, and the storage elements are made of D-trigger and RS-trigger, the second D-trigger, the element NOT and the second key element are inserted into each linear unit, the generator output in the central console pulses through the element is NOT connected to the first input of the AND element, the output of which is connected to the S-input of the RS flip-flop, the first output of which is connected to the first input of the OR element, the output of which is connected to the second input of one of the execution units and to the second input of the pulse distributor, after the bottom output of which is connected to the second input of the AND element and to the second input of the second OR element, the reset bus is connected to the second input of the first 5 of the OR element, the output of which is connected to the third input of the pulse distributor, with the R-input of the D-flip-flop and with the R-input of the RS-flip-flop, the second output 0 five 0