SU760103A1 - Programmed monitoring device - Google Patents

Description

The invention relates to the field of automation and computing and can be used in control devices.

Known software control devices, for example, a device containing a control program block, a control block, a block for specifying input actions, a comparator, a comparison circuit, a block of standards [1].

The disadvantage of this device is the low accuracy of the control. In addition, analyzing signals at one output or a group of you · ^ί0 moves in a known device requires drawing up a new control program, which entails additional time and complicates the process of analyzing sigals and diagnosing malfunctions of the test object.

Of the known, the closest to the proposed is a program control device containing a software control unit, input action setting blocks, an input commutator, an output switch, a word switch, a comparison circuit, the output of the program control block being connected to the control inputs of the input air conditioner blocks. .

2,

actions and comparison circuits, the output of which is connected to the input of the programmed control unit, the outputs of the input action block of the actions through the input switches are connected to the inputs of the control object, the outputs of which are connected to the inputs of the output switch, the output of the word switch is connected to the first information input of the comparison circuit [21.

<However, the device does not provide the necessary accuracy of dynamic control, due to the lack of possibility to set exact time parameters of input signals and their relative position to one another, to implement tests with high frequency, as well as to accurately analyze time signals of the output response of the control object.

The aim of the invention is to eliminate these disadvantages, i.e. increased reliability and reduced monitoring time.

This goal is achieved by the fact that in the device containing the program control unit, the input action specifying units, the input commutator, the output switch, commutator 760103.

word torus, comparison circuit, with the output block ·

~ Ka software control is connected to the control inputs of the input parameters and the comparison circuit, the output of which is connected to the input of the program control unit, you; the inputs of the input action parameters through the inputs switch are connected to the inputs of the test object, the outputs of which are connected with the inputs of the switch of the outputs, the output of the switch of words is connected to the first information input of the comparison circuit, the controlled pulse generator, the amplitude-time discriminator, the output register are added reaction, a memory block, the outputs of the switch of outputs are connected ₁₅ to the corresponding inputs of the amplitude-time discriminator, the outputs of which are connected to the inputs of the register of the output reaction, the outputs of which are connected to the corresponding inputs of the switch of words, the control ₂ θ auxiliary input of which is connected to the control input the storage unit and output of the program control unit and output - with the second data input of the comparison circuit, the pulser v'tod managed soedi- ₂₅ nen with vyh'odom program control unit, outputs - to specify the inputs of the input blocks impacts block programmatically -go'upravleniya amplitude and time-dis. criminator, the first control input of which is ₃₀

connected to the output of the software control unit, which is also connected to the control input of the output reaction register, the second equating inputs of the amplitude-time discriminator are connected to the corresponding ₃₅ outputs of the input action setting blocks.

In addition, each block for specifying input actions contains buffer registers, a register of input actions, a master register, a group of AND-OR elements, a driver of signal parameters and a controlled voltage source, and the control inputs of the buffer registers, the register of input actions and the master register are the control input of the block , the outputs of the buffer registers are connected to the corresponding inputs of the register! input influences and master register, the outputs of the register of input influences are connected to the first group of inputs of the shaper parameterization of signals, the second group of inputs of which are connected to the outputs of the elements of the I-YLI group, the first inputs of which are connected to

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are the master inputs of the block, the outputs

signal conditioner are

the block outputs, and the input is connected to the first output’Dbm of a controlled voltage source, the control input of which is connected to the control input of the block, and the second output is the control output of the block.

FIG. 1 shows a block diagram of the proposed software control device; FIG. 2 is a functional block diagram of the input actions.

The device contains a control object 1, a software control unit 2, a switch of 3 inputs, a switch of 4 outputs, a block of 5 specifying input effects, an amplitude-time discriminator 6, a controlled pulse generator 7, a memory block 8, a buffer register 9, a register of 10 input impacts, a driver And the parameters of the signals, which sets the register 12, the block 13 of the elements of AND-OR, the controlled voltage source 14, the register 15 of the output reaction, the switch'16 words, the comparison circuit 17.

The device works as follows.

Before the inspection of the control object 1 is started, the control program is entered into the program control unit 2, and the switch of the 3 inputs and the switch 4 of the outputs are set to the corresponding connections of the objects of the control object to the blocks 5 specifying the input actions and 6 amplitude-time discriminator.

The switch 3 inputs and switch 4 outputs together represent полю x K - pole,

where K ’= (m + n);

L - the total number of contacts of the object 1 control;

η is the number of inputs; w - the number of outputs.

Moreover, switches 3 and 4 allow you to split all ί contacts of the control object 1 into groups according to functional and amplitude-time signs. Therefore, the test can be realized in one or several memory calls to the program control unit 2, which leads to a reduction in the required memory size for storing tests and to the realization of tests with a higher frequency. In addition, any signal from the software pulse generator 7 can be fed to any input of the control object 1, which makes it possible to dispense with the implementation of complex cyclograms of input actions by a smaller number of channels from a controlled generator of 7 pulses.

At the start address of the control program, the program control unit 2 issues the following control information about the control mode to the actuators; in a controlled oscillator 7 pulses, the code that determines the temporal position of the signal for fixing the reaction of the test object 1, the temporal parameters of the output signals of the block 5, specifies the input effects, the frequency of the tests by the block 2 of program control; in block 8 '

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5 7601

the memory sets information about the numbers of the analyzed outputs of the test object 1; in block 5 of the task of input effects - information that determines the amplitude values of the signals of input effects and the expected values of ₅ amplitudes of the signals of the output reactions of the test object, as well as the supply voltage applied to the test object.

Then, from the program control unit 2, the input actions command blocks 5 are issued with the information of the command for generating a parallel vector of input actions and, according to one of the commands containing a special feature in the operation code, this vector is fed to the test object. 15

Next, we consider the operation of block 5 of the task of input effects. Information from program control unit 2 is written into buffer registers 9. One of them is ₂₀ to store information about an input to which the signal of program control unit 2 is transmitted to the register 10 of input actions, and further through the signal shaper 11 and a switch parameters 3 'inputs ₂₅ is given to control object 1. In this case, the moment of input actions input is determined by a controlled pulse generator 7.

Another buffer register 9 in conjunction with the master register 12 can perform functions similar to those described above. In this case, the information from the buffer register 9 is copied to the master register 12, and then through one of the elements of the block 13 I-YLI elements, the driver 11 of the signal parameters and the switch 3 inputs is fed to the control object 1.

In addition, in the impulse mode, the polarity of the pulse signals is sent to the master register 12 via this buffer register 9, which will be fed under the control of the signals of the program control unit 2 from the pulse generator 7 to the corresponding inputs of the AND-13 block 13, and then to the driver 11 of the signal parameters, which generates the amplitude values of the signals of the input actions using a controlled voltage source 14, the information about the parameters to which is supplied from the program block 2 of the board.

The signals of the output response of the control object 1 through the switch 4 outputs arrive at block 6 of amplitude-time discrimination, which converts them to a level. logical zero or one according to the parameters of selection, and then stored in the register 15 of the output reaction. In this case, the register 15 is written the logical value ("0" or "1") of the output signal, if its value

lies within the prescribed limits or inverse meaning otherwise. The information recorded in the register alternately according to the signals of the program control unit 2 is fed by the switch 16 words to the comparison circuit 17. In parallel with the selection by the switch 16 words of information of the next group of bits of the output response register 15, the memory unit 8 is addressed to the corresponding address and the information about the output numbers of the test object 1 is monitored, which are analyzed in this test, and the reference circuit 17 is supplied with information corresponding to the reference one ( expected) reaction of the object 1 control.

The comparison circuit 17 generates an output signal informing the program control unit 2 of the conformity or non-conformity of the analyzed information to the norm. In the case of non-compliance, the output elements of the test object, the reference reaction and the analyzed outputs of the test object are displayed on the display elements of the program control unit 2, and the program control unit 2 calls the program for processing the detected error. In the absence of a malfunction signal, the execution of the main control program continues — supplying input actions and analyzing the information received from the control object 1 to the final address of the main control program.

The proposed device provides high-quality control of the test object due to the possibility of setting its inputs with a complex time cyclogram of input actions, as well as at the expense of amplitude-time discriminations, minimizing the output response of the control object, which allows analyzing the output signals of arbitrary shape, including pulses.

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Claims (2)

Claim . 1. A software control device comprising a software control unit, input action setting blocks, an input switch, an output switch, a word switch, a comparison circuit, the output of the program control block being connected to control inputs of the input action blocks and a comparison circuit whose output is connected to the input Software control unit, the outputs of the blocks of input actions through the input switch are connected to the inputs of the test object, the outputs of which are connected to the inputs of the switch output s, words output switch connected to the first input of the comparison circuit chnformatsionnym, characterized in that, in order to increase dosto760103 'Fidelity and decrease control time, it comprises a controllable pulse generator, amplitude-time discriminator output register response, a memory unit, wherein the switch vyhoD1 outputs are connected to corresponding inputs ₅ stvuyuschimi amplitude-time discriminator which outputs are connected with the ) the inputs of the output reaction register, the outputs of which are connected to the corresponding inputs of the word switch, the control input of which is connected to the control input of the memory block and the output of the program control unit, and the output to the second information input of the comparison circuit, the input of the controlled pulse generator β ka 'software control, and outputs - with za-. giving the input setting unit input actions program control unit and the time-amplitude discriminator, first control input connected to the house ₂₀ The yields program control unit sOednnennym also to a control input register output response, the second control inputs ‘Amplitude-time discriminator is connected to the corresponding outputs of blocks for 25 Denmark input actions. 2. Device by π. 1, that is, that each block of input task Impacts contains buffer registers, input effects register, a master register, a group of AND-OR elements, a signal parameter generator and a controlled voltage source, the control inputs of the buffer registers, the input effects register and the master register are the control input of the block, the outputs of the buffer registers are connected to the corresponding inputs the register of input effects and the master register, the outputs of the register of input effects are connected to the first group of inputs of the driver of signal parameters, the second group which inputs connected to the outputs of the AND-OR group, the first inputs of which are connected to outputs of the master register and the second inputs is a predetermined input unit, the output of the signal parameters are the outputs, and connected to the first input. output controlled voltage source. the control input of which is connected to the control input of the block, and the second output is the control output of the block.