SU1388932A1 - Device for training operators - Google Patents

Abstract

The invention relates to simulators of operators of control systems and can be used to train operators of process control systems in the oil refining, chemical, and other industries. The purpose of the invention is to expand the didactic capabilities of the device. The invention makes it possible to increase the efficiency of teaching process control by increasing the degree of information and ergonomic simulator of a real object. The device contains a block of 1 simulation of real processes, a block of 2 presentation of information, a block 3 of inputting operator response actions, a console 4 teachers, input nodes for setting parameters 17 and parameter standards, which are a block for changing parameters, as well as newly entered block 5 of switches, a block 6 controls the process parameters and block 7 comparisons. 4 il. (L

Description

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The invention relates to simulators of operators of control systems and can be used to train operators of process control systems in the oil refining and chemical as well as other industries.

The purpose of the invention is to expand the didactic capabilities of the device and increase the effectiveness of training by increasing the degree of information and ergonomic similarity to the simulator of a real object.

FIG. 1 shows a diagram of the proposed device; in fig. 2 is a block diagram of a block of modeling real processes; in fig. 3 is a block diagram of switches; pas figs. 4 is a diagram of a process control unit.

The device contains a unit 1 for modeling real processes, a unit 2 for presenting information, a unit 3 for inputting operator response, a control unit 4 for teachers, a unit 5 for switches, a unit 6 for adjusting process parameters, and a block 7 for comparison.

Block 1 of modeling real processes is designed to reproduce the dynamic interrelation of technological parameters, such as temperature, pressure, flow rate, levels in the apparatus.

Unit 2 of presentation of information D) is designed to monitor and record the values of parameters, characterize, their flow of the technological process.

Unit 3 contains switches of 8 control modes, unit 2 - light signaling board 9, unit 3 - control call button 10, unit 2 - switches 11, of; educational and recording devices 12, many. potentiometers 14 and 15, block 2 - a decoder 16. The device also contains input nodes for setting parameters of parameter 17 and standards of parameter 18.

Structurally, blocks 2 to 3 are made in the form of a rack, in the upper part of which four devices 12 and a multimeter 13 are placed, on which you can simultaneously control a group of sigpals characterizing the state of the controlled circuit (process parameter, its nominal value and signals from potentiometer 15 (remote control) and switch 8 control modes. In the middle of the rack is mounted the mnemonic of the technological process, which contains the switches 8, board 9, buttons 10

and potentiometers 14 and salts - installed Block 1 contains

, 5, below - on the switches 11. switches 19,

operational amplifiers 20, replaceable transceivers

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five

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five

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slippers 21, 22-shaping transfer function circuits, resistors 23 and operational amplifiers 24.

Block 5 contains key elements 25.

Block 6 contains electronic PI controllers 26, which include differential amplifiers 27, integrators 28, and summing amplifiers 29. Node 17 contains potentiometers 30.

Nodes 17 and 18 are combined in a process parameter adjustment unit 31.

The device works as follows.

To prepare for the training of operators, process control skills configure unit 1 to reproduce the dynamic interrelationship of the parameters of this process. At the same time, interchangeable jumpers 21 and resistors 23 are installed, as well as tuning the transfer function formation circuits 22. The switches 19 are set to positions corresponding to the type of actuators (normally open or normally closed). Node 18 defines the ranges of allowable changes of process parameters.

In the process of learning, modeling (reproduction) of the interrelation of technological parameters; logical processes is carried out in block 1. Signals from block 3 are received at the input of block 1, depending on the actions performed by the student in simulating process control, and from console 4, imitating change in the flow conditions of the process. For each set of controlling and disturbing influences that enter the input of unit 1, voltages are produced at its output corresponding to the values of the parameters of the technological process.

Using switches 8, the student sets the control mode for the relevant process parameters: direct remote control of the actuating mechanisms or automatic control according to the PI law. In the first case, the control signal to unit 1 is fed through a switch, 8 directly from the remote control potentiometer 15. When the process parameter is automatically regulated, the control signal to block 1 is received via switch 8 from the output of the corresponding controller 26. Signals from the potentiometers 14 and output from block 1 are sent to the inputs of the regulators 26. The regulators 26 adjust the settings by means of the potentiometers 30. on potentiometers 14 and 15, the learner controls the change in process parameters.

The values of the most important process parameters, selected with the help of the AND switches, are continuously measured and recorded by the instruments 12. All process parameters can be alternately monitored by calling the trainee on the multi-display device 13. The call is made by pressing the corresponding call button 10 on the control, signal from which comes through the decryption formula of the invention. A device for training operators, containing a teacher’s console, the output of which is connected to one input of a simulation block of real n otsessov unit pred detection information input unit and the operator response unit change parameter settings, characterized in that, in order Rasschirennaya didactic device capabilities introduced therein

RATOR 16 to the device 13, causing the switch unit to appear in Yu, the required scale adjustment unit, as well as to block 5, through the process parameters and the comparison unit, the cut of which connects to the device 13 the output of which is connected to the first input , the characteristic of the information presentation unit, the first one that controls the operation of the controlled contour of the control loop — with one output of the lithification change block: the process parameter, its nominal parameter set- tings, and the second input with the ruling value, the control signals. In the case of the output of a parameter of a process from the range of its allowable change at the output of block 7, a signal appears causing the corresponding display 9 to glow.

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connected to the second input of the information presentation unit, the teacher’s console input, the first input of the switch unit and the first input of the process parameter control block, the output of which is connected to the input of the operator response input block, the second input with another output of the parameter setting change block, and the third input — with the first processors connected to the second input of the information presentation unit, the teacher’s console input, the first input of the switch unit, and the first input of the process control unit and whose output is connected to an input unit input operator response, the second input - to the other block output change parameter settings, and the third input - to a first vyUstroystvo intended for training operators of process plants, equipped with a centralized management and control systems. It allows the flow of the response controller to be controlled by the progress of the response input unit connected to the second input.

switch unit, the third input of which is connected to the second output of the operator response input unit connected

a large number of process parameters, while the measurement And registration of all process parameters is carried out using only four

- to the third input of the presentation block -. I DJI71C 1, JUiVl ULU. t if4Jf J -IV, 1 UI -JJ .. -, -, -,

devices 12 and one multiscale pr-formation, the fourth input of which is the combination 13. The proposed structure of the device, which provides information and ergonomic similarity to real objects, makes it possible to reduce its dimensions and cost.

The use of the invention makes it possible to increase the efficiency of training in process control.

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The output of the switch block, the fourth and fifth inputs of which are connected to the third and fourth outputs of the operator response input block, the other input of the simulation module of real processes is connected to the fourth output of the operator response block input.

Claims (1)

An apparatus for training operators, comprising a teacher’s control unit, the output of which is connected to one input of a simulation module of real processes, an information presentation unit, an operator response input input unit and a parameter change setting unit, characterized in that, in order to extend the didactic capabilities of the device, entered into it a switch unit, a process parameter control unit and a comparison unit, the output of which is connected to the first input of the information presentation unit, the first input to one output of the parameter setting change block, and the second input to the output of the real-time simulation module a switch unit, a process parameter control unit and a comparison unit, the output of which is connected to the first input of the information presentation unit, the first input to one output of the parameter setting change block, and the second input to the output of the real-time simulation module connected to the second input of the information presentation unit, the teacher’s console input, the first input of the switch unit and the first input of the process parameter control block, the output of which is connected to the input of the operator response input block, the second input with another output of the parameter setting change block, and the third input - with the first output of the operator response input block connected to the second input to the third input of the presentation unit –JJ .. -, -, - ,, formations, the fourth entrance of which is compound5 The output of the switch block, the fourth and fifth inputs of which are connected to the third and fourth outputs of the operator response input block, the other input of the simulation module of real processes is connected to the fourth output of the operator response block input.