SU1397951A1 - Device for monitoring the state of objects - Google Patents

Abstract

The invention relates to an automatic control technique, namely, devices for monitoring the status of alarm sensors. The aim of the invention is to increase the accuracy and reliability of the device. The goal is achieved by the fact that a coordinate indicator, two AND elements, and an NOT element are entered into a device containing a pulse generator, a pulse distributor, an amplifier unit, sensors and decoupling elements that form a control matrix, indication blocks that form a matrix of indicators, and analysis blocks. by the number of columns of the control matrix, the horizontal bus short circuit indicators by the number of rows of the control matrix and the short zamizhniki vertical tires, the number of which is equal to Double the number of columns of the control matrix, the pulse distributor is made with an additional output. In addition, the pulse distributor is made of two counters and the AND elements, the signal analysis unit is made of a decoder and the element is NOT, and the display unit is made of a display element, a trigger and a reset key. When triggered in the control matrix of the sensors, the display element is switched on in the corresponding indication block of the display matrix. When a break occurs, the break point is determined by the coordinate indicator, which is located at the beginning of the horizontal and at the end of the vertical light line segments. The short circuit of the control matrix tires is determined by the luminescence of the short circuit indicators of the horizontal tires and the short circuit of the vertical tires. 3 hp f-ly, 4 ill. i (L 00 (cl

Description

one

The invention relates to an automatic control technique, namely, devices for monitoring the status of alarm sensors.

The purpose of the invention is to increase the accuracy and reliability of the device.

Figure 1 shows the diagram of the device; figure 2 - diagram of the signal analysis unit; Fig.3 diagram of the display unit signals; figure 4 - diagram of the pulse distributor.

The device for monitoring the state of objects contains sensors 1, which are made, for example, from switching contacts, and spreading elements 2, forming lines and columns of the control matrix 3, blocks 4 of the indication, forming lines and columns 1 and 1 of the display 5, generator of 6 pulses, distributor 7 pulses, signal analysis units 8, block 9 amplifiers, elements 10 and 11, elements 12, coordinate indicator 13, vertical bus short-circuit indicators 14 and horizontal bus short-circuit indicators 15.

Block 8 analysis of the signals is made of a decoder 16 and the element is NOT 17.

The display unit 4 is made of a reset key 18, a trigger 19 and an indication element 20.

The distributor 7 pulses are made of counters 21 to 22 and elements And 23,

The device works as follows.

When cycling the distributor 7 pulses through a block of 9 amplifiers on the rows of the coitrol matrix 3 receives a pulse of sequential polling. The polling pulses are generated at the outputs of the counter 22 (after recalculation by the counter of 21 pulses coming from the generator of 6 pulses). Paraphase signals are removed from the outputs of the busbars of the columns of the control matrix 3, which are fed to the inputs of the corresponding signal analysis blocks 8. The paraphase signals from the bars of the columns of the control matrix 3 are identified as follows: code 01 - sensor 1 is not activated; code 10 - sensor 1 worked; Code 11 - an interruption of the bus or the circuit connecting the sensor 1 to the bus; Code 00 - one of the buses (or both) is grounded.

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These codes are encrypted by the decoder 16, included in the signal analysis unit 8. A violation signal (on tires, code 01) is generated at the output of the element HE 17 of the signal analysis unit 8 and triggers the trigger 19 of the corresponding display unit 4. The triggering moment of the trigger 19 is gated with a signal from the output of the AND 23 elements of the distributor 7 pulses,

If several sensors 1 are triggered in the control matrix 3, then the triggers 19 are triggered in the corresponding indication 4 blocks of the indication matrix 5.

When a mounting break occurs in the control matrix 3, a signal appears at the output of the corresponding signal analysis unit 8. The signal from the output of the signal analysis unit 8 is fed to the input of one (or several) elements NOT 12. If this signal coincides with the strobe signal from the output of one pulse distributor 7, the gas discharge element of the coordinate indicator 13 turns on. The glow of this element is supported by by triggering when the polling cycle of the reference matrix 3 is repeated. By the glow of certain gas discharge elements of the coordinate indicator 13, the location of the bus failure of the signal acquisition network is determined.

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On the coordinate indicator 13, segments of horizontal and vertical lines are displayed. The cliff is located at the beginning of the horizontal and the end of the vertical lines.

A short circuit of the control matrix 3 tires on the ground is determined when there is no interrogation of sensors 1 (at the time of a pause between interrogation pulses coming from the output of block 9 amplifiers). The zero state of any of the buses at the time of gating from the additional output of the distributor 7 pulses indicates its closure to earth and leads to the triggering of the indicator associated with it. Since the closure of the horizontal bus to the ground leads to the appearance of a zero signal on the vertical busbars through the isolating element 2, the operation of the indicators 14 is prohibited by a signal through the elements 10 and 1 1,

Formula of Invention

1. Device for monitoring the state of objects, containing a pulse generator, the output of which is connected to the input of the pulse distributor, the outputs of the first group of outputs of which are connected to the first terminals of the connecting elements of the corresponding rows of the control matrix through the amplifier unit, the second outputs of the switching elements are connected to the first terminals the corresponding sensors of the control matrix, the second and third terminals of the sensors of the columns of the control matrix are connected respectively to the first and second inputs of the corresponding Signal analysis units, the first outputs of which are connected to the first inputs of the display units of the corresponding columns of the display matrix, the outputs of the second group of outputs of the pulse distributor are connected to the second inputs of the display units of the corresponding rows of the display matrix, in order to improve the accuracy and reliability of the device, elements are entered NOT by the number of columns of the control matrix, indicators, short circuits of horizontal tires by the number of rows of the control matrix, indicators a vertical bus connection, the number of which is equal to twice the number of columns of the control matrix, a coordinate indicator and two elements, and the pulse distributor is made with an additional output, the second and third terminals of the sensors of the last row of the sensor matrix are connected to the first inputs of the corresponding short-circuit indicators of vertical tires, the second the conclusions of the signal analysis blocks through the elements are NOT connected to the corresponding inputs of the first group of inputs of the coordinate indicator; the outputs of the second group are of the pulse distributor moves are connected to the corresponding inputs of the second group of inputs of the coordinate indicator, the additional output of the pulse distributor is connected to the first input of the first element I and to the first inputs of the short e-0 indicators

five

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the horizontal busbars, the outputs of the amplifier unit are connected to the second inputs of the corresponding short circuit indicators of the horizontal buses and to the inputs of the second element I, the output of which is connected to the second input of the first element I, the output of which is connected to the second inputs of the short circuit indicators of the vertical buses.

2. A device according to claim 1, characterized in that the pulse distributor is made of two counters and AND elements, the number of which is one more than the number of outputs of the second group, the input of the first counter is the input of the distributor and is connected to the first inputs of the AND elements, the first and second the outputs of the first counter are connected respectively to the second and third inputs of the AND elements, the third output of the first counter is connected to the input of the second counter, the first group of outputs of which is the first group of outputs of the distributor, the outputs of the second group nN counter outputs are connected to fourth inputs of respective AND gates, the outputs of which, except the last one, are the second group of outputs of the distributor, the output of the last AND gate is an additional output of the distributor.

3. The device according to Clause 1, about tl and - that the block of signal analysis is executed from the decoder

and the NOT element, the first and second inputs of the decoder are respectively the first and second inputs of the block, the first output of the decoder is connected to the input of the element NOT whose output is the first output of the block, the second output of the decoder is the second output of the block.

I

4. The device according to Claim 1, which is based on the fact that the display unit is made of an indication element, a trigger and a reset key, the first and second inputs of the trigger are respectively the first and second inputs of the block, the output of the reset key is connected to the third the trigger input, the output of which is connected to the input of the display element.

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Claims (4)

claims, A device for monitoring state objects, containing a pulse generator, the output of which is connected to the input of the pulse distributor, the outputs of the first group of outputs of which are connected through the amplifier block to the first outputs of the decoupling elements of the corresponding rows of the control matrix, the second conclusions of the decoupling elements are connected to the first conclusions of the corresponding sensors control matrix, the second and third conclusions of the sensors of the columns of the control matrix are connected respectively to the first and second input of the corresponding signal analysis blocks, the first outputs of which are connected to the first inputs of the display blocks of the corresponding columns of the display matrix, the outputs of the second group of outputs of the pulse distributor are connected to the second inputs of the display blocks of the corresponding rows of the display matrix, characterized in that, in order to increase the accuracy and reliability of the device, elements NOT entered into it by the number of columns of the control matrix, indicators. horizontal bus short circuit by the number of rows of the control matrix, vertical bus short circuit indicators, the number of which is equal to twice the number of columns of the control matrix, a coordinate indicator and two And elements, and the pulse distributor is provided with an additional output, the second and third sensor outputs of the last row of the sensor matrix are connected to the first inputs of the corresponding vertical bus short circuit indicators, the second outputs of the signal analysis blocks through the elements are NOT connected to the corresponding inputs of the first group of inputs of the coordinate indicator, the outputs of the second group of outputs of the pulse distributor are connected to the corresponding inputs of the second group of inputs of the coordinate indicator, the additional output of the pulse distributor is connected to the first input of the first element Nick to the first inputs of the indicators for short circuiting horizontal buses, the outputs of the amplifier block are connected to the second the inputs of the respective horizontal bus short-circuit indicators and with the inputs of the second AND element, the output of which dklyuchen to the second input of the first AND gate whose output is connected to second inputs of short circuit indicators vertical buses. 2. The device according to claim 1, characterized in that the pulse distributor is made of two counters and elements And, the number of which is one more than the number of outputs of the second group, the input of the first counter is the input of the distributor and connected to the first inputs of the elements And, the first and second outputs the first counter are connected respectively to the second and third inputs of AND elements, the third output of the first counter is connected to the input of the second counter, the first group of outputs of which is the first group of outputs of the distributor, the outputs of the second group s counter outputs are connected to fourth inputs of respective AND gates, the outputs of which, except the last one, are the second group of outputs of the distributor, and the output of the last element is optional 'output distributor. 3. The device according to claim 1, wherein the signal analysis unit is made of a decoder and an element NOT, the first and second inputs of the decoder are respectively the first and second inputs of the unit, the first output of the decoder is connected to the input of the element NOT, the output which is the first output of the block, the swarm of the decoder output is the second output of the block. second-hand 4. The device according to claim 1, characterized in that the display unit is made of an indication element, a trigger and a reset key, the first and second inputs of the trigger are respectively the first and second inputs of the block, the output of the reset key is connected to the third input of the trigger, the output of which is connected to the input of the indication element.