SU1644195A1 - Object state monitor - Google Patents

Abstract

The invention relates to an automatic control technique, namely, devices for monitoring alarm sensors. The aim of the invention is to improve the noise immunity of the device. For this, a device containing a pulse distributor, which is made of counters and an element I, switching sensors contacts, combined into a control matrix, information processing units, which are made of display unit matrices, signal analysis units, a pulse generator, and elements are entered into the pulse distributor And, and tmristor optocouplers are inserted into each control matrix. When the switching contact of the sensor is triggered, the display element is switched on to the corresponding display units. In addition, the device allows for the classification of open and short circuits. 5 yl

Description

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

The aim of the invention is to improve the noise immunity of the device.

Figure 1 shows the diagram of the device; figure 2 is a functional diagram of the signal analysis unit; FIG. 3 is a functional circuit of the display unit; figure 4 is a functional diagram of the pulse distributor; Fig. 5 shows timing diagrams for the operation of the device.

The device for monitoring the state of objects contains the signal analysis blocks 1, the display blocks 2 included in the information processing units 3, the amplifier block 4, the pulse generator 5, the pulse distributor 6, the inputs 7 of the signal analysis blocks 1, the outputs 8 and 9 of the block 4 amplifiers, switching contacts of 10 sensors and optocouples 11 (thyristor), forming a control matrix 12.

Block 1 analysis of the signals is made of a decoder 13, the element is NOT 14 and the element is MLN 15

The display unit 2 is made of display elements 16, triggers 17 and 18, reset and lock keys 19

The distributor 6 pulses are made of counters 20-22 and elements And 23.

The device for monitoring the state of objects operates as follows.

From outputs 8 and 9 of block 4 of amplifiers, pulses of sequential interrogation produced by distributor 6 of pulses are supplied to LEDs and photo thyristors of optocouplers 11 of control matrices 12 (sensors), respectively. Polling pulses are generated at the outputs of ring meters 22 and 21, recalculated by pulses from the generator 5 after being counted by counter 20. The state of the selected switching contact 10 of the sensor is determined when the signals

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high level dew at the inputs of the LED of the optocoupler 11 and low (zero) level on the corresponding row of the control matrix 12, The terminals of the switching contacts 10 of the control matrices 12 are removed paraphase (when mounted) the signals that are fed to the inputs 7 of the corresponding signal analysis blocks 1 .

The signals to input 7 are identified by blocks 1 as follows: code 01 - there is no switching contact of the sensor 10; code 10 - the switching contact 10 of the sensor has worked; code 11 - assembly breakage of a tire or a junction of a circuit of the switching contact 10 of the sensor to the tire; Code 00 - one of the buses (or both) is grounded:

Codes 00 and 11 indicate mounting faults in the signal collection network.

Codes received at input 7 are decrypted by the decoder 13, which is included in block 1 of signal analysis. The violation signal is generated at the output of the NOT element 14 of block 1 and triggers the corresponding trigger 17 in one of the blocks 2. Codes 00 and 11 are additionally classified as a failure of the switching contacts of the 10 sensors, and an output signal of the element OR 15 is generated. cooldown (of the trigger 18). The latter triggers, during the p-op polling cycle, under the star / s condition in the first poll cycle of the trigger 17. This eliminates the possibility of a false triggering of the trigger 18 due to bounce The contacting contacts of the 10 sensors when they are switched at the moment of action of the corresponding gate pulse.

The condition is accepted that in the first control matrix 12 from one of the sensors 1-2 (the first digit is the row number, the second is the column number), the link is broken on the vertical well, and well, and in the fourth matrix the gauge 3-4 worked. Then, when polling, in the first conditional cycle, triggers of 17 blocks 2 with addresses 1-2 of the first node 3 and 3-4 of the fourth node 3 are signaled, indicating a violation in the respective sensors, and in the second poll cycle, trigger 18 of block 2 with addresses 1-2, indicating a faulty installation. The triggering of the flip-flops 17 and 18 is performed at the time of gating their inputs with pulses coming from the outputs of the And 23 elements of the distributor 6.

With the help of key 19, when it is pressed briefly, triggers 17 and 18 are reset, and with a long press, application is blocked.

In these triggers 17 and 18 of the information, the latter is necessary to block the display when carrying out maintenance and repair work on the device containing the sensor.

5F o rumlula and z o bre te ni

A device for monitoring the state of objects, containing a pulse distributor, which is made of a first counter, the input of which is connected to the first input

0 of the first element And, the first output of the first counter is connected to the second input of the first element And, the second output of the first counter is connected to the input of the second counter, the transfer output of which is connected to the input

5 of the third counter, the third output of the first counter is connected to the third input of the first element And, control matrices, each of which is made up of switching contacts of sensors, in each control matrix in each column the first and second terminals, switching contacts of sensors, respectively, are combined, information processing nodes by the number of control matrices, each node

5 information processing is made in the form of a matrix of display units, in each information processing unit in each column the first and second inputs of the display units, respectively, the third inputs are combined

0 display units in each information processing unit are combined, the fourth inputs of display units in each information processing unit are integrated line by line, the first outputs of the switching contacts of the last 5 sensors of the same name columns of control matrices are connected to the first inputs of the same name signal analysis units, the first outputs of which are connected to the first inputs first display units

0. of the same name columns of information processing units, the second outputs of the switching contacts of the last sensors of the like columns of the control matrices are connected to the second inputs of the like inputs

5 signal analysis units, the second outputs of which are connected to the second inputs of the first display units of the same name columns of information processing units, a pulse generator, whose output is 0 keys to the input of the first pulse distributor counter, the outputs of the third counter of which are connected to the third inputs of one of the display units of the same processing nodes information, the entrances of one of the display units of the same name rows of information processing units are combined, in order to increase the noise immunity awns device therein in each control matrix incorporated by optocouplers

the number of switching contacts of the sensors, and I elements, the number of which is one less than the rows in the information processing unit, are added to the pulse distributor. The same-named inputs, except for the fourth, And elements are combined, the outputs of the first group of the second counter are connected to the four-way inputs And, in each control matrix, the first terminals of the optocouplers are connected to the third terminals of the switching contacts of the sensors of the same name, the second terminals of the optocouplers in each control matrix are combined line by line, third opt conclusions

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the rons in each control matrix are combined, the fourth pins of the optocouplers of the control matrices are combined, the outputs of the second group of the second pulse distributor counter are connected to the third pins of one of the optocouplers of the same lines of the control matrices, the outputs of the third counter of the pulse distributor are connected to the third pins of one of the optocouplers of the same control matrices, outputs elements and the pulse distributor are connected to the fourth inputs of one of the indication blocks of the same line of one of the info processing nodes mation.

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Block 5 output Flea 4L3J output Block 1Ј921 output

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Claims (1)

Claim A device for monitoring the state of objects, containing a pulse distributor, which is made of a first counter, the input of which is connected to the first input of the first element And, the first output of the first counter is connected to the second input of the first element And, the second output of the first counter is connected to the input of the second counter, transfer output which is connected to the input of the third counter, the third output of the first counter is connected to the third input of the first element And, control matrices, each of which is made of switching contacts of the sensor c, in each control matrix in each column the first and second conclusions of the switching contacts of the sensors are respectively combined, information processing nodes by the number of control matrices, each information processing node is made in the form of a matrix of indication blocks, in each information processing node in each column the first and second the inputs of the display units are respectively combined the third inputs of the display units in each information processing unit are combined, the fourth inputs of the display units in each information processing unit are combined They are row-wise, the first conclusions of the switching contacts of the last sensors of the same name columns of the control matrices are connected to the first inputs of the same blocks of signal analysis, the first outputs of which are connected to the first inputs of the first blocks of the display of the same columns of information processing nodes, the second conclusions of the switching contacts of the last sensors of the same columns of the control matrix are connected to the second inputs of the same inputs of the blocks of signal analysis, the second outputs of which are connected to the second inputs of the first blocks in the displays of the same columns of information processing nodes, a pulse generator, the output of which is connected to the input of the first counter of the impudent distributor, the outputs of the third counter of which are connected to the third inputs of one of the display units of the same information processing nodes, the fourth inputs of one of the display blocks of the same name information processing nodes are combined, characterized in that, in order to increase the noise immunity of the device, optocouplers are introduced into each control matrix by the number of switching sensor responses. and the And elements, the number of which is one less line in the information processing unit, in the pulse distributor, are entered in the pulse distributor. The same inputs, except for the fourth, And elements are combined, the outputs of the first group of the second counter are connected to the fourth inputs of the same And elements, in each the first matrix of optocouplers is connected to the third conclusions of the switching contacts of the same sensors, the second conclusions of the optocouplers in each control matrix are combined line by line, the third conclusions of the optocouplers in each control the integral matrix are combined, the fourth outputs of the optocouplers of the control matrices are combined, the outputs of the second group of the second counter of the pulse distributor are connected to the second outputs of one of the optocouplers of the same rows of control matrices, the outputs of the third counter of the pulse distributor are connected to the third outputs of one of the optocouplers of the same control matrices, outputs of the elements And the pulse distributor is connected to the fourth inputs of one of the display units of the same name lines of one of the information processing nodes. · V Ψ it blocks 2 b Block 5 output Block output 9693 You are block code 969.23 Block 9.33 output Block output 969.93 G Block output 968.Ί3 Block output 968.23 Block 968.33 output Block output 968.93 Block input 2613 J ---- 1 ----- 1——1 ---- 1 ---- L Entrance. block B2623 Blockade Entrance 2633 Block Entrance 2693 Trigger output 176 1.22 Trigger output 18 s 123 Trigger output. 18639) The outputs of the failed T7i18 triggers. Figure 5