SU1255996A1 - System for checking parameters - Google Patents

Abstract

The invention relates to computing can be used to verify the technical composition of units and devices. The purpose of the invention is to increase the reliability of the control. The system contains an electronic computer, a control panel, a printing unit, a measurement unit of monitored parameters, a stimulus generator, three control units, a pulse counter unit, a memory unit, an interface, an information interchange unit, a interface unit, a photo reader, a control unit potential interrupt handling unit. Improving the reliability of control is achieved through continuous monitoring of the presence of potential. The dial on the o6i3eKTa body of the control, the presence (absence) of the potential on the tires of the object of control, exclusion. influence of random failures of the program for checking the object of control. 5 il. (LJ JV s od

Description

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20

The invention relates to computing and can be used to check the technical condition of electronic device blocks.

The purpose of the invention is to increase the reliability of the control.

Figure 1 presents the block diagram of the system of control parameters | in fig. 2 -. diagram of the block of pulses; FIG. 3 is a diagram of the first control unit; FIG. 4 is a diagram of the second control unit j in FIG. 3; a diagram of the processing and interrupt unit.

The system for controlling parameters (Fig. 1} contains an electronic computing machine 1, a remote control 2, a printing unit 3, a measurement parameter measuring unit 4, a generator. 5 stimulating signals, a switch 6, the first monitoring unit 7 (tolerance unit the control unit), the pulse counter unit 8, the memory block 9, the second control unit 10 (the continuous monitoring unit for the state of the control object circuits), the interface 11, the third control unit 12 (the control unit for the absence of potential on the housing and control object tires), block 13 exchange of information ationation, interfacing unit 14, photo reader 15, control potential block 16, interrupt processing unit 17, control object 18, inputs and outputs of interrupt processing unit, 19-26, computer interface buses 27-30.

The pulse counting unit 8 (FIG. 2) comprises a pulse generator 31, a frequency divider 32, a frequency selection node 33 and n nodes. pulse counts, each of which consists of three counters 35, 35, 35 and majority element 36.

The first control unit 7 (FIG. 3) contains a record register 37, a register 38

dug, register 53. reference states, first register 54 masks.

Interrupt processing unit 17 (Fig. 5) contains interrupt register 55, second mask register 56, interrupt signal generating element 57, display node 58, and a stop signal generating element. There are two main lines to the mainframe, the computer is using the interface card 48.

Pulse counting unit 8 (Fig. Consists of n metering nodes, each of which can operate in the Timer mode and in the Count mode. In the Timer mode, the counter triggers a program interrupt signal after a specified time interval has elapsed. The configuration is made for an interval According to the interrupt signal generated by the i-th meter node, the control is transferred to the corresponding processing program of this interrupt. After its execution, the check program can be continued.

current time count from the moment of the meter start. Interrogation of the state of the counter is performed by software. Each node of the counters for increasing the reliability of work is made according to the majority scheme, two out of three and contains three pulse counters.

The first unit 7 (control) tolerance control resistance (Fig. 35 is designed to determine whether the values of the resistance of the inverted circuit are within a predetermined tolerance. The operation of block 7 is based on the flow of controlled circuits by a defined current at a predetermined voltage specified by current source 41, which is a low-power current source with additional control of the resistance value

thirty

40

reading, the first element 39 is galvanized. Node 44 tolerance control

. in isolation, current control node 40., current source 41, reference resistance node 42, selection node 43

 measuring range, control unit 44, resistance, second galvanic isolation element 45 50, switching node 46, element 47 OR. The communication with the computer mains is made through the interface pair 48. The second control unit 10 (Fig. 4) contains a self-check register 55 49, the third isolation element 50, the comparison node 51, the press control formation 52 provides control of the resistance value between the terminals. check the chain. The block is built according to the principle of comparing the input 44 connected through the resistance switching node 46 with the resistance range selected at node 43. The result of the control with la 44 through the galvanic isolator 45 and the element 47 OR and then through the interface card 48 the electronic computer 1 is read out. The controlled circuits are connected with

dug, register 53. reference states, first register 54 masks.

Interrupt processing unit 17 (FIG. 5) contains interrupt register 55, second mask register 56, interrupt signal generating element 57, display unit 58, stop signal generating element 59. Communication with highways, computers occurs through the interface card 48.

The pulse counting unit 8 (FIG. 2) consists of n metering nodes, each of which can operate in the Timer mode and in the Count mode. In Timer mode, the counter triggers a program interruption signal after a specified time interval has passed. The interval setting is programmed. According to the interrupt signal triggered by the ith meter node, control is transferred to the corresponding processing program for this interrupt. After it has been interrupted, the test program can be run. In account mode is made

current time count from the moment the meter starts. The polling of the state of the counter is done in software. Each node of the counters for increasing the reliability of work is made according to the majority scheme, two out of three and contains three pulse counters.

The first block 7 (control) tolerance control resistance (Fig. 3) is designed to determine whether the resistance values of the tested circuit are within the specified tolerance. The operation of block 7 is based on the flow around a controlled circuit with a certain current at a certain voltage, set by the current source 41, which is a low-power current source with tolerance control of the resistance

The control provides a control of the resistance value between the back-up test wires. Block 7 is built on the principle of comparing a node 44 connected to the input through a resistance switching node 46 with the resistance range selected at node 43. The result of the control from node 44 through the galvanic isolation 45 and the element 47 OR and then through the interface card 48 is read into the electronic computer 1. The controlled circuits are connected with

using the node 46 switching, built on the matrix type. The current control unit 40 is designed to detect the fact of overcurrent and, in this case, signal 6 in interrupt unit 17. The self-test of unit 7 provides a check of the operability of the resistance control unit 44 on all resistance ranges with the help of 42 reference resistances selected in the node. The self-check of the register register row 38 is carried out by writing information to the register bit 37 and reading it through the OR element 47, the read register 38 and the interface card 48 in the computer 1. The test is carried out when the control unit 40 is connected with open contacts node 46 switching. Checking the switch and cable network contacts is carried out with the control unit 18 turned off. Switch 6 for troubleshooting type

potential on the hull removes pi

such from the elements of the tolerance control unit 7 of the resistance.

The second control unit 10 (Fig. 4) provides continuous and discrete monitoring of the state (presence or absence of voltage) of the circuits of the control object 18. The galvanic isolation node 40 provides galvanic isolation of controlled circuits relative to the power supply sources of the control circuit. This node also provides a discrete software polling of the state of the circuits, and is a sixteen-bit register operating in the scans mode. The register of 40 reference states is a sixteen-bit register with information storage and operates in write and read modes. It is programmatically tuned to the reference state of the monitored circuits of the object 18. Comparison node 51 is designed to compare the state of the monitored circuits with their reference state. The mask register 54 is a sixteen-bit register with information storage and operates in the write and read modes. It is programmatically adjusted to allow and prohibit state monitoring - NIN circuits. In the initial state (on power-up) control is prohibited. Node 52 forming interruptions Yu 15 20

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0 5 0 5 0 5

It generates an output interrupt signal if the actual state of the information in the comparison node 51 about the state of the controlled circuit does not correspond to its reference state recorded in the register 53 of the reference states, provided that the circuit control is enabled, this corresponds to the information recorded in register 54 masks.

The self-test node 40 consists (not shown) of the self-test register and the switching elements. The self-check register is a 16-bit write subscriber that controls the switching of the switching elements. The switching elements simulate input signals corresponding to the state of the circuits of the test object.

Remote control 2 is intended. to perform the following functions: to ensure the input of information and to visually monitor the input of information on digital indicators / to ensure the setting of operation modes to ensure the time count from the moment the system is turned on, to display it} to provide visual monitoring of information.

Unit 4 of measurement of monitored parameters provides measurement of DC voltages of positive and negative polarity, amplitude values of alternating voltages of different polarities, effective and average values of variable periodic voltages of arbitrary shape, resistance, repetition period (T), phase shift (H ), sinusoidal stresses, repetition period (T), pulse duration (t), phase shift (H) periodic polarity, duration of the h -th period (T,) sinusoidal voltage Or a periodic sequence of pulses of positive (negative) polarity, the duration of the nth pulse of a periodic sequence of pulses of negative (positive) polarity, counting the number of pulses of positive and negative polarity, the frequency of the pulses of positive and negative polarity.

The stimulating signal generator 5 is a generator for generating signals of various

Forms with program-set, 1, and mi parameters.

Interrupt processing unit 1 (Fig. 5) is designed to process interrupt requests and transmit an interrupt signal to electronic computer 1. Interrupt register 55 is designed to record and store interrupt requests from electronic computer 1 from any of the blocks connected to it (7, 8 , 10, 12) systems. Mask register 56 is designed to dynamically set the interrupt request priority service. Interrupt signal generating element 57 implements a modulo-adder function, Interrupt Register 55 and Mask Register 56 are software accessible. The connection of these registers with the interface 1 1 pos1; is established using bi-directional buses. The information recorded in mask register 56 may prohibit or enable program interruption on requests that arrive in the corresponding. 55 bits of interrupt allocation. When a non-masked interrupt request is received, the interrupt signal generating element 57 generates a signal that goes from the output to the electronic computer 1. Upon receiving this signal, the electronic computer 1 stops executing the main program, goes to the fixed address of the interrupt service program and executes this program. At the same time, a signal is generated in the electronic computer 1, which is fed to the input of the interrupt processing unit to the stop signal generating element 59. The signals at the corresponding and input blocks are present during the implementation of the interrupt program and are removed by the last command of this program. If a request for a corresponding input, i.e., an interrupt request from an electronic computer arrives at the time of implementation of the interrupt processing program, the stop signal generation element generates a stop signal of the electronic computer 1, and the interrupt signal indication node 58 generates a signal arriving at console 2 indication of the failure of the corresponding device in the electronic computer 1.

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The third control unit 12 is designed for continuous monitoring of the potential of the power source on the tires of the test object and on the body of the test object and the monitoring system. A potential hit on the control object tires is an emergency situation.

The interfacing unit 14 (cross) is designed to provide the connection of KOMMyTatopa 6 with a particular control object 18. The introduction of block 14 makes it possible to easily adapt the connection of the electrical circuits of the switch 6 with a particular object 18. control. It includes (not shown) normalizers, which provide the conversion of the levels of input signals to the levels perceived by the block 4 of meters and the corresponding switching fields, connected, for example, by a specific wiring or terminal connections.

The system works as follows.

Before starting work, paper is installed in the printing unit 3, and a punched tape is installed in the photo reader 15. On the remote control 2, the Start button is pressed, as a result of which the start trigger of the electronic computer 1 is set to the operation enable state. From the memory block 9, the following are retrieved and sequentially executed: "Electronic computer test" test task, Interface 11 test test, Interrupt processing unit test test 17, Control unit enable program 12. On the remote control 2, the transparency is entered. Entering the verification code, after which, using the remote control buttons 2, the verification volume code of the object 18 of the control or its units is entered. After this, information is read from the punched tape installed in the photo-reading device 15 and the read information is loaded into the random access memory of the electronic computer 1. From this point on, the control of the monitoring object 18 or its units, i.e., self-test, starts. Consider the case of checking the control object 18 (one check cycle). Checking the control object 18 is carried out in accordance with the timing diagram shown in FIG. 7, B

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The torus 6 from the electronic computer 1 is a set of codes that ensure the connection of the power supply 16 through the switch 6 and the interface 14 to the control object 18. In block 13 of the exchange from the electronic computer 1 enters the set

. codes that ensure loading into the object 18 of the control of the program the bringing of the object 18 of the control to the initial state and its execution. Next, the switch 6 from the electronic machine 1 enters a set of codes ensuring the connection of the corresponding blocks (4, 5, 7, 10 and 13) through the switch 6 and the interface block 14 to the control object 18. Block 5 receives a set of codes from the electronic computer 1, which enable its connection and generation of stimulating effects on the control object 18, and blocks 4 and 7 ensure its switching on, measurement of the parameters of the control object 18, and recording the measurement results into random access memory. Machines 1. Next, the switch 6 is supplied with a set of codes that ensure disconnection of blocks 4, 5 and disconnection of the communication circuits of these blocks through blocks 6 and 14 with the object 18 of the control. After that, the electronic computer 1 compares the results obtained using the unit 4 for measuring control parameters with the reference values entered previously from the punched tape. If the measurement result is within the limits set by the reference values, the electronic computer 1 issues commands to turn on the printing unit 3 and prints the system check rate with simultaneous switching on the remote 2 of the norm banner if the measurement result falls outside the set reference values (a signal is received Not normal), then the inspection cycle of object 18 of control is repeated. At the same time, if during the repeated check of object 18 of the control a signal is received Not the norm, then the printing unit 3 produces a print indicating the coordinates of the specific location of the program in which the Not the norm is received, printing the results of the intentions obtained during the first and second not the norm parameter printing instructions to the human operator

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on the actions to eliminate non-faults Refusal in the object 18 of the control and the inclusion of a transporant on the console 2. In the case that the Norm is obtained during the repeated check of the object 18 of the control, then the third repetition of the check of the object 18 of the control is performed the results decide on the state of the object 18 of the control.

Due to the fact that the time for a single inspection of the control object 18 can be calculated with great accuracy and for the purpose of protecting against accidental failures and looping the program when the electronic computer 1 crashes, at the start of the check of the control object 18 in the unit The 8 counters record the control time for the execution of this clock. If the checkout time of the control object 18 in this clock exceeds the counter set in block 8, then from the pulse counter block 8, the interrupt signal is sent to the interrupt processing block 17, which is ziruet issue in an electronic computer 1 interrupt signal by which. The execution of work on the verification of the control object 18 in the given cycle and the repeated execution of the verification check of the control object 18 is stopped. During the inspection of the control object 18, the control unit 12 is connected with the help of the switch 6 and the interface of the unit 14 to the corresponding nodes of the control object 18 and provides continuous potential control. If in any tact of the check of the object 18 of the control unit, the control unit 12 records the fact of potential occurrence, then the register 42 of the unit 17 records information on the operation of the control unit 12. If at the same time in the mask register register 56 of the block 17 there is no ban on the formation of an interrupt according to the control block 12 (Mask), then the block 17 generates the Interrupt signal entering the electronic computer 1. Upon receiving this signal, the electronic computer proceeds to the program first interrupt processing, and further to that part of this program, which provides interrupt processing by control unit 12. The location of the potential event is determined as follows. In register 43 masks in block 17 is entered ipfor9

In the meantime, the information about the block 12 is disguised from the control block, from the control block 12, whereby the interrupt signal from the interrupt processing block 17 to the computer 1 is stopped. Then, sequentially, using the switch 6, alternate power is removed from the respective blocks of them (4,5,7,10,13) and the analysis of the state of the register register 42 of the block 17 fixing the processing fact of the block 12 . If, when the power is turned off, from any of the listed blocks associated with the object 18 of the control, the information in the register register 42 disappears, then this indicates that this device is a source of potential, i.e. it is faulty. This activates the print unit 3 and prints instructions to the operator for corrective measures. If the potential does not disappear as a result of power removal from the blocks (4, 5, 7, 10, 13), this indicates a malfunction of the control unit 12. In this case, the printing unit 4 is turned on and the operator is instructed to take corrective actions. Similarly, for the control unit 12, the work is also carried out when the signal from the control unit 10 is received in block 17. The system operates when any signals appear on the circuit of the control object 18 is executed in the following sequence; when the control unit 10 controls the sig- nal along a controlled circuit from the control object 18 through the switch 6, the control unit 10 outputs a signal to the register 42 of the processing block 17, interrupts. Next, a transition is made to the interrupt handling program for the control unit 10 and the execution of this program, including the definition of a specific circuit along which the signal came and a printout of information to the operator about the troubleshooting actions.

Thus, the proposed system improves the reliability of the decision on the state of the obtuktek control by means of continuous monitoring of the presence of potential on the body of the control and control system, due to the constant monitoring of the presence (or absence) of potential on the tires

9610

the control object, as well as by eliminating the influence of random program failures that occur during the execution of the control object verification program. In this case, the reliability of the control is increased by an amount proportional to the probability of occurrence of this class of faults.

In addition, the time required to find and eliminate a malfunction is reduced, which is achieved by applying the principle of disconnecting the power when a potential occurs on the body of the control object or the body of the control system, as well as by documenting the result of the check with recommendations for eliminating the problem.

formula of invention

A system for controlling parameters, containing a switch, a connecting control input with an output of a control potential block, and an electronic computer connected by an output. Recording via the interface bus. Recording to the first information inputs of the control panel, the measuring unit of monitored parameters and the generator of stimulating signals, and Reading through the interface bus Reading to the first information outputs of the control panel and measuring unit of monitored parameters, characterized in that Improvements in the control reliability, a memory block, a print unit, a photo-changer, a pulse counter block, three control blocks, an interrupt handling block, and an information exchange block connected by the output are read via the interface bus Read with the first information outputs of the first and second blocks control, switch, stimulus generator, pulse counters block, interrupt handling unit and with information outputs of the photo reader and print unit, and the first insulating input through the interface bus Recording - with the first data inputs of the three control units switch fotoschityvayuschego device .pechati unit, the pulse counter block and the first Infor-

by the input input of the processing unit connected by the second and third information inputs, respectively, to the Outputs Record of Interruptions and Disables Interruptions of the electronic computer, the address input through the interface bus The address to the output output of the pulse counter unit, the address output of the electronic computer, the address input of three control units - to the address input of the communication unit, to the address inputs of the switch, photo reader, control panel and measurement unit parameters, the fourth information input - to the second information output of the first control unit, the second information output - to the second, information input of the control panel, the third and fourth information outputs - to the inputs Interrupt, Stop the electronic computer, information information input - to the second. information output of the pulse counter block, controlling the input via the interface bus Control to the control inputs of the three control units, to the control output of the electric Ma- shchny ronnoy computer, to the control inputs of the switch fotoschityvayuschego device, a printer unit, a generator stimulatory signals, remote control, pulse counters measuring unit and controlled by the parameter block, and a sixth data input - to

output of the third control unit connected by the second information input to the first output of the control object associated with the first input and the second 5 output with the second information input and the first outputs of the information exchange unit, and the second inputs and the third outputs respectively with the first inputs and outputs

10 interface blocks connected by the second inputs to the second information outputs of the switch, connected by the third information outputs to the second information inputs 15 of the first control unit, the fourth information outputs to the second information inputs of the unit to measure the monitored parameters, the fifth information outputs to the second 20 information inputs of the stimulation signal generator, neck information output - with the second information input of the second control unit, first, second “ 5- and 4th control outputs, respectively, with the second control inputs of the displacement unit of the monitored parameter, the first and second control units and with the second control input of the information exchange unit, and the second information input with the second information output of the control unit I parameters, and the controlling

5 The output of the control panel is connected To the Start input of the electronic computer connected with the input-output bus Memory with inputs-outputs of the memory block.

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Compiled by A.Lishansky Editor P.Kossey Tehred I., Hodani Corrector A.Obruchar

Order 4822/47 Circulation 836 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

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Claims (1)

Claim A system for monitoring parameters, comprising a switch connected to a control input with an output of a block of control potential and an electronic computer connected to an output. Record via an interface bus. Record to the first information inputs of a control panel, a block for measuring controlled parameters and a stimulating signal generator, and an output Read through an interface reading to the first information outputs of the control panel and the unit for measuring controlled parameters, characterized in that, in order to To increase the reliability of control, a memory block, a print block, a photo-reading device, a pulse counter block, three control blocks, an interrupt processing block, and an information exchange unit connected by an output are read into it. Reading through the interface bus Reading with the first information outputs of the first and second control units, switch, stimulating generator, pulse counter unit, interrupt processing unit and with the information outputs of a photo reader and print unit, and the first one th input through an interface bus Recording - with the first data inputs of the three control units switch fotoschityvayuschego device, a printer unit, the pulse counter block and the first Infor- eleven 1 2 by the input of the interrupt processing unit, connected by the second and third information inputs respectively to the Interrupt Record ”outputs and the Prohibition of interruption of the electronic computer, by the address input via the interface bus Address - to the address output of the pulse counter block, the address output of the electronic computing ma-10 bus, the address input of the three control units - to the address input of the information exchange unit, to the address inputs of the switch, photo reader, control panel and control unit parameters, the fourth information input - to the second information output of the first control unit, the second information output - to the second information input of the control panel, the third and fourth information outputs - respectively to the Interrupt, Stop electronic computer inputs, and the fifth information input - to the second information output of the pulse counter unit, controlling the input via the interface bus Control to the control inputs of the three control units, to the control output of the electric computer, to the control inputs of the switch, photosensitive device, print unit, stimulating signal generator, control panel, unit of pulse counters and unit for measuring controlled parameters, and the sixth information input to the output of the third control unit connected by the second information input to the first output of the object control associated with the first input and second output with the second information input and the first outputs of the information exchange unit, and the second inputs and third outputs, respectively specifically with the first inputs and outputs of the interface unit, connected by the second inputs to the second information outputs of the switch, connected by the third information outputs with the second information inputs 15 of the first control unit, the fourth information outputs with the second information inputs of the unit for measuring controlled parameters, the fifth information outputs with 20 the second information inputs of the stimulating signal generator, the second information output - with the second information input of the second control unit, the first, second, third, third and fourth control outputs, respectively, with the second control inputs of the block of movement of the monitored parameter, the first and second control units and with the second 30 control input of the information exchange unit, and the second information input with the second information output of the block measuring controlled parameters, and the control panel output 35 connected to the Start input of an electronic computer connected by an input-output bus Memory with inputs / outputs block memory. FIG. 4 29 2526 27262330 Fi g. 5 '