SU1709372A1 - Device for training operators - Google Patents

Abstract

The invention relates to simulators for training equipment maintenance and can be used in various electronic equipment for testing equipment monitoring and diagnostics systems. The device contains an operator panel that allows you to set the type code and fault address, a malfunction unit that represents a set of tristable elements, a testing and indication unit that allows you to control the time spent by the operator to search for the malfunction entered by the instructor and the number of attempts made by him. 1 il.

Description

 The invention relates to simulators for training equipment maintenance and can be used in electronic equipment for various purposes, including for testing hardware-software monitoring systems and equipment diagnostics.

A device for training control system operators is known, comprising a teacher’s console, an operator’s console, a control unit, an information presentation unit, a code converter, an average learning time calculator unit, a learning time standard deviation calculator unit, a learning level control unit, an error highlighting unit, an input unit information, time counter, retry counter, registration block, two AND elements, three comparison blocks, the control block containing three registers, a trigger, a decoder, a distributor pulses, memory element, element AND, the unit for calculating the average learning time contains an adder, divider and counter, the unit for calculating the standard deviation contains two memory elements, two comparison elements, a generator, a counter, two adders, a multiplier, a square root extractor, a divider The learning level control unit contains a digital-to-analog converter, a square root extraction element, a divider, a multiplier, and an adder.

However, such a device is quite difficult.

Also known is a simulator of control system operators containing a control unit, a control signal generating unit, a program node, a logic node, an error node, a memory block, a correction unit, an acoustic effect intensity setting unit, a control panel, an algorithm execution control unit information.

acoustic effect selection unit, sound generator, information playback unit, setpoint input unit, counter, the algorithm phase control unit contains a group of pulse shapers, a group of counters and a decoder, the acoustic effect selection unit contains a switch control circuit, a switch and a group of modulators sound signals, the functional circuit of the correction unit contains a decoder, a switch control circuit, a switch, a voltage divider and a reference voltage source,

The disadvantage of this device is its complexity and limited; didactic vozmokhnosti.

The closest to the present invention is a device for training operators, which contains a memory block, the outputs of which are connected to the corresponding inputs of the decoder, information inputs — with the corresponding outputs of the register, synchronous input — with the output of the time counter and the input of the signaling node, and the control input — with the output the first switch, the input of the delay element and the installation input of the time counter, the start input of which is connected to the output of the delay element, the separation elements, the outputs of which are The device’s outputs are connected to one of the inputs of the corresponding comparators, the other inputs of which are the first inputs of the device, and the outputs are connected to the first inputs of the corresponding AND elements, the second inputs of which are connected to the corresponding outputs of the decoder, and the input of responses that is the second input device input.

The disadvantages of this device are the limited range of didactic capabilities (only faults of the type of potential V are entered), one-sided assessment of the operator’s actions (the criterion is only the time of fault finding). At the same time, it is known that faults caused by the influence of potential O are possible. (e.g. short circuit).

The purpose of the invention is to expand the didactic possibilities and increase the accuracy of the device.

The goal is achieved by the fact that in the device for training operators, containing a memory block, the outputs of which are connected to the corresponding inputs of the decoder, the information inputs are connected to the corresponding outputs of the register.

sync-input - with the output of the time counter and the input of the alarm node, and the control input - with the output of the first switch, input of the delay element and the set

the input of the time counter, whose start input is connected to the output of the delay element, the separation elements whose outputs are the corresponding outputs of the device and are connected by the inputs of the corresponding comparators, the other inputs of which are the first input of the device, and the outputs are connected to the first inputs of the corresponding elements AND, the second whose inputs are connected to

5 corresponding outputs of the decoder, and a response input node, the input of which is the second input of the device, analog keys are entered, one inputs of which are connected to the corresponding outputs of the decoder, and outputs to the inputs of the corresponding decoupling elements, the second switch whose inputs are the third and the fourth device inputs, the third switch, the first and second inputs of which are respectively the fifth and sixth inputs of the device, the first OR element, whose inputs are connected to the output am of the respective comparators, the second OR element, whose inputs are connected to the outputs of the corresponding AND elements, and the output is connected to the input of the alarm unit, the pulse shaper, whose input is connected to the output of the first OR element,

5 response counter, the installation and informational inputs of which are connected to the outputs of the first switch and pulse generator, respectively, and the EXCLUSIVE OR elements, the outputs of which are connected to the third inputs of the corresponding AND elements, one input to the output of the third switch, and the other inputs to the output of the second switch and to the corresponding inputs of analog keys.

The drawing shows a functional diagram of the device for training operators.

All the elements of the device in the training scheme are combined into three functional blocks: operator panel 1, unit for forming faults and unit 3 for testing and indication.

Remote control 1 contains register 4, first switch 5, memory block 6, second switch .7, address output 8, control output 9 and input 10, fault signal output 11.

Block 2 contains a decoder 12, analog switches 13, a fault signal input 14, address input 15, control output 16, control outputs 17 and 18.

Block 3 contains control inputs 19, control inputs 20, fault input 21, synchronization output 22, synchronization input 23, comparators 24, EXCLUSIVE OR 25 element, three-input elements AND 26, first elements OR 27, second elements OR 28, element 29 delays, a time counter 30, a signaling node 31, a pulse shaper 32, a response counter 33 (the number of attempts made by the operator to look for a malfunction), a third switch 34 (logic signal switch), an answer input node 35 (current collector) 26, separation elements 3 6,

The device works as follows. .

The malfunction address code is entered using register 4 and the first switch 5 in block 6 and the type of fault is set using switch 7. From address output 8, through input 15 of block 2, the fault address code goes to decoder 12, which includes one of the analog switches 3, connected from output 11 via input 14 of block 2, to fault status to control outputs 17 and 18, this signal goes to the equipment under study, impeding its normal functioning.

Simultaneously, the pulse signal of the switch 5 through output 9 is fed to the input 23 of unit 3. This signal goes directly to the reset input of counters 30 and 33, and through the element 29 of the delay to the start input of counter 30. The latter starts counting the time from the moment the fault is entered into the equipment.

After the appearance of an interfering signal at the output 18 of unit 2, malfunctions are observed in the operation of the equipment, which can be fixed by means of instrumentation control.

The learner needs to localize the source of interference and determine the type of malfunction: Constant zero or Constant unit, which requires him to fully know the work of the equipment under study, skills and abilities to operate it, including the ability to use measuring and diagnostics tools.

When a suspected circuit is detected and the type of fault is determined, the trainee establishes the type of the supposed malfunction of the switches 34 and switches the test potential En to the suspected point using the node 35. If the suspected circuit is galvanically connected to block 2, the test voltage is applied to the corresponding input 20 of block 3, acting on one of the comparators 24. In this case, the inverse inputs of all the comparators 24 are supplied with a threshold voltage Eo. 5 Voltage values are selected from

conditions

,,

whereE $ and EF-values of logical signals of the studied equipment, -,

Епр - the maximum permissible magnitude of the amplitude of the signals of the interaction of the logic circuits of the studied equipment, which includes a simulator.

5 Since the test voltage Ep is higher than; level Eo, then a single signal appears at the output of the corresponding comparator, which through the element OR 27 and the driver 32 enters the counters 33, increasing its state by one attempt at troubleshooting.

At the same time, the unit from the output of the comparator 24 is fed to one of the inputs of the three-input element And 26, to the other

5 whose input receives the control signal from the decoder 12 through the output 16 of block 2 and the input 19 of block 3. The third input of element 26 also receives a signal from the output of element EXCLUSIVE OR 25, the output of which receives a single value only when switch 7 The view and switch 34 are set to the same state (zero or one). When three single signals appear at the inputs of the And 26 element, which is possible if the node 35 is correctly switched and the switch 34 is correctly set, the output signal through the OR 27 element. arrives at the stop input of counter 30,

Q fixes the time spent on the search and to the input of the node 31, signaling to the operator and the correct localization of the place and type of malfunction. The same signal through the output 22 of block 3 is fed to the input 10 of the remote 1, - and

5 as a result of zeroing the block 6, the interference with the normal functioning of the equipment disappears.

If the student incorrectly connected the probe of node 35, then the comparator 24 does not

Claims (1)

l switches due to the presence of a zero signal from input 20, and if the fault type was set incorrectly by switch 34, then element 26 does not switch due to a zero signal from the output of element EXCLUSIVE OR 25. In both cases, the counter 30 stops and the node 31 does not operate, and only the next attempt will be registered by the counter 33. Thus, the possibility of quickly traversing all the checkpoints in order to trigger an alarm about the end of the search for a fault without an elaborate search algorithm is excluded. This device allows studying the functioning of electronic equipment as part of a system into which faults are introduced not only in the type of logical unit, but also in the type of logical zero, provides a more objective control of the student’s level of training, not only by the time spent on fault localization, but also by the number of attempts taken by him to troubleshoot (number of replies). The latter excludes the possibility of finding a malfunction by thoughtless but quick search of possible options. The application of the invention allows to expand the didactic capabilities of the device and contributes to a deeper training of operators. . In addition to training the operators on the operation of electronic equipment, the simulator can be used to debug, monitor and test systems for hardware and software monitoring and diagnostics. Claims An operator training device comprising a memory block whose outputs are connected to the corresponding inputs of the decoder, information inputs to the corresponding register outputs, synchronized input to the time counter output and alarm node input, and a control input to the output of the first switch, input the delay element and the installation input of the time counter, the start input of which is connected to the output of the delay element, the separation elements, the outputs of which are the corresponding outputs of the device and are connected to one input of the corresponding comparators, the other inputs of which are the first input of the device, and the outputs are connected to the first inputs of the corresponding AND elements, the second inputs of which are connected to the corresponding outputs of the decoder, and the input node of the answers, whose input is the second input of the device, characterized by the fact that, in order to expand the didactic possibilities and increase the accuracy of the device, analog keys are entered into it, some of the inputs of which are connected to the corresponding outputs of the decoder, the outputs are with the inputs of the respective separation elements, the second switch, whose inputs are the third and fourth inputs of the device, respectively, the third switch, the first and second inputs of which are the fifth and sixth inputs of the device, respectively, the first OR element, whose inputs are connected to the outputs of the corresponding comparators, the second element OR, whose inputs are connected to the outputs of the corresponding elements And 5 output-with the input of the alarm node, pulse shaper, whose input is connected to the output One of the first element OR, the response counter, the setup and information inputs of which are connected to the outputs of the first switch and pulse generator, respectively, and the EXCLUSIVE OR elements, the outputs of which are connected to the third inputs of the corresponding elements AND, some inputs to the output of the third switch, and the other inputs to the output of the second switch and to the corresponding inputs of the analog switches. rr one