SU1667138A2 - Control systems operators trainer - Google Patents

Abstract

The invention relates to automation and computing and can be used in devices for training operators of process control systems. The aim of the invention is to expand the didactic capabilities of the device by introducing into the device a unit 11 for monitoring the admissibility of the operator’s decisions, which allows the operator to train the process control that includes the assembly, checking its actions for validity, i.e. on the possibility of implementing the decision made by the operator. 9 il.

Description

The invention relates to automation and computing, can be used in devices for training operators of the process control system and is an improvement of the invention according to the car no. 1249568.

The purpose of the invention is to expand the didactic capabilities of the device by providing the possibility of training the operator of the process control including the assembly, checking its actions for admissibility, i.e. on the possibility of implementing the decision made by the operator, by modeling the process, including the assembly operation, as well as by comparing the operator’s decision with some set of solutions that can be implemented at this state of the technological process

FIG. t depicts the proposed device, a general view: FIG. 2-9 are diagrams of, respectively, a simulation unit of a real process flow,

a divider, a minimum selection block, a divider, a smooth process simulation block, an initial conditions setting block and a comparison block divider.

The device contains (Fig. 1) operator panel 1, unit 2 for simulating the real process flow, display unit 3, unit 4 for modeling the smooth process run, unit 5 for comparison, unit 6 for estimating unit 7 for specifying the criterion, unit 8 for measuring the parameters for real course the technological process, the unit 9 setting the smooth process parameters, the unit 10 setting the initial conditions and the unit 11 controlling the admissibility of operator decisions consisting of adders 12, threshold elements 13 and keys 14.

Unit 2 for modeling the actual process flow (Fig. 2) consists of subunits 15, the structure of each of which is similar to that of unit 2 in a known device. Each subunit 15

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designed to produce a signal proportional to the intensity of the release of the corresponding part. In addition, unit 2 includes sub-units 16 of modeling the assembly of a single product. Each of the subunits 16 is made in the form of subunits 17. consisting of a key 18, an integrator 19 and a divider 20 connected in series. In addition, the subunit 16 is connected in series with the subunit 17 to a minimum selection block 21 and a differentiator 22.

The key 18 is designed to pass a signal to the first input of the integrator 19 only when the part is used in assembling the product. The integrator 19 serves to obtain a signal proportional to the number of parts of a selected type that have arrived in the assembly of products of this type in the past time. The divider 20 divides the signal from the output of the integrator 19 in accordance with the applicability of a particular part in the corresponding product (the divider circuit 20 is shown in Fig. 3). Unit 21 provides a signal proportional to the number of products of the corresponding type, which can be assembled from parts received in the past tense. An example implementation of block 21 is shown in FIG. 4. Differentiator 22 is designed to produce a signal proportional to the output intensity of the assembled products of a certain type.

The operator panel 1 in the proposed device contains dividers 23. They serve to divide the signal, proportional to the intensity of the arrival of a part of this type, into parts proportional to the receipt of such parts by the assembly of the selected product.

Block 4 of the smooth process simulation (Fig. 6) contains subunits 24, the device of which is similar to the device of block 4 in the known device. Each subunit 24 is designed to receive a signal proportional to the intensity of the planned release of parts of a selected type. In addition, unit 4 contains subunits 25 of modeling the planned progress of the assembly process of a single product. Each of the subunits 25 includes subunits 26, each of which contains a key 27 connected in series, an integrator 28 and a divider 29. The subunit 25 also contains a minimum selection block 30 and a differentiator 31 connected in series with the subunit 26.

In addition, unit 4 simulates a planned process flow.

also includes dividers 32. An example implementation of the divider 32 is shown in FIG. 7

The adder 12 is designed to receive a signal proportional to the sum of the intensity of the receipts of parts of this type of assembly of various products. The threshold element 13 serves to receive a signal about the inadmissibility of the operator's decision if the determined intensity of the arrival of parts of any part on the assembly is greater than the intensity of its manufacture.

The keys 14 cut off the signal coming from the console 1 in the case of

5 inadmissibility of solutions of the operator.

Block 10 in the proposed device contains a button 33 with latching and the source 34 of the signal (Fig. 8). The signal source 34 is designed to receive a reference signal. Buttons 33 pass or not pass a signal to the control inputs of keys 27 of block 4 and keys 18 of block 2. If a certain sprinkle is pressed, the selected part is used when assembling the selected product.

A device for training control system operators operates as follows.

All information on the actual and planned characteristics of the controlled process, on disturbances (deviations), criteria and estimates of the quality of process control is transmitted to the instrumentation of the display unit. Before the start

5, the instructor from block 9 by moving the knobs of the potentiometers sets the signals corresponding to the planned course of technological processes. In addition, it establishes in what proportions the intensity of the intake of each part between the assembled products (by moving the potentiometer knobs included in the 32) g dividers, to the planned assembly is distributed.

5 Prior to the beginning of the learning process with the signal of the unit 10, the instructor sets the keys 18 and 27 to the closed or open state. The closed state corresponds to the case when this part is used

0 when assembling a specific product

From block 7, the instructor, by switching with the help of the switch keys, sets the signals corresponding to the selected evaluation criteria and coming in

5, the evaluation unit 6 simultaneously sets the function of display criteria of each part for each product by moving the potentiometer knobs included in dividers 20 and 29. In addition, the instructor, by moving the potentiometer knobs calibrated in terms of the characteristics of technological processes, from unit 10 sets the signals proportional to the initial conditions of the technological process In the process of learning, signals from the outputs of the subunits 15, corresponding to the outputs of the last operation of the technological route, are sent to the console 1 operator On dividers 23. These signals are proportional to the intensities m oazlichnyh species proceeds parts for assembly products. The operator, moving the sliders of the potentiometers included in the dividers 23, sets the distribution of the intensities of incoming parts between the assembled products. The outputs of the dividers 23 generate signals proportional to the intensities of the arrival of parts of the selected type on the assembly of a product of this type, the incoming ia inputs of adders 12. The inverse inputs of adders 12 receive signals from the outputs of blocks 2. If the specified summing condition is not met, then the output of the threshold element 13, a signal is generated, which is fed to the display unit 3 as an indication to the operatope that the distribution of the input intensities specified by rotation of the sliders of the potentiometers included in the divider 23 the parts between the assembled products are underpermitted / stimulated, since the intensity of the arrival of the part in this case would be less than the intensity of its use in assembling products. The operator in this case, with the help of potentiometer sliders must specify another solution.

If the operator's decision is admissible, the signal is fed to the input of the key 18 of the corresponding subunit 17, which is included in unit 2 for modeling the real course of the technological process. If the key is open, a signal is formed at its output that is fed to the input of integrator 19. For each of the integrators 19 before the learning process begins, the instructor sets initial values. During the training, the outputs of the integrators 19 generate a signal proportional to the number of parts of the selected type received assembly of products of this type for the past tense. Signals are fed to the inputs of dividers 20 to specify the uses of parts in products, the outputs of which form signals proportional to the number of products of this type, for the manufacture of which there would be enough parts of a certain type. These signals are fed to the inputs of the minimum selection block 2. Signals are generated at the outputs of the blocks 21. proportional to 5 quantities of products of this type, which were collected over the past tense. These signals arrive at the inputs of differentiators 22. The outputs of which form signals proportional to the intensity of the output of the assembled products. These signals are fed to the input of the comparison unit 5. The operator, analyzing the data on the display unit 3, can judge the consequences of his controlling influences on the progress of the actual assembly process. In this case, the planned assembly process serves as a reference process. Its simulation is carried out in block 4.

The operation of block 1 differs from the analog block in a known device in that the division of signals is carried out not by the operator from the console 1, but by using dividers 32 in block 4. Thus, the use of the proposed device allows the operator to train not only the processors, but also assembly operations, check the admissibility of operator decisions when distributing parts between assembled products, which expands

0 didactic capabilities of the device and allows you to improve the qualifications of the student

Claims (1)

Invention Formula 5 Operator training device control systems by evt sv. 1249568, characterized by that. that, in order to expand the didactic capabilities of the device, a block of operator control solutions is introduced into it, consisting of adders, keys and threshold elements, the inputs of which are connected to the outputs of the corresponding totalizers, and the outputs - with the corresponding inputs of the display unit and 5 control inputs of the corresponding keys, the information inputs of which are connected to the corresponding outputs of the operator’s console and to the information inputs of the corresponding totalizers, the outputs are connected to the corresponding control inputs of the real process simulation unit, the control outputs of which are connected to the corresponding inputs of the operator’s console and with the control inputs of the corresponding adders. figl phi.2 2 / Ucn Iffa.tO about- tf b F FIG. H At the entrance fa. 21 FIG. five one Nabihod & l. 22 to s / i. ft Fig 5 I I J i i C1 I I jj Editor A. Ogar Compiled by A. Karlov Tehred M. Morgental / 2 mxn Outputs 2 FIG. eight to the inputs of J ff / ioxa 4 (pus. 9 Proofreader M.Kucher va