SU1314365A2 - Device for evaluating work-performance capabilities of operators of automatic control systems - Google Patents

Abstract

The invention relates to the means of quality control of the operations of automatic control system operators. The purpose of the invention is to improve the accuracy of the device when assessing the quality of an operator’s performance by obtaining an integral estimate for a given set of tasks performed by him, many of which correspond to the character of the operator’s activity in a real control system. The integral estimation is formed on the basis of the use of the dichotomous method by successively storing in the memory register the repetitive quality value of the response by the operator of the next task and comparing this value with the results of a similar assessment of the subsequent task from the specified set. The integral curve is defined as the maximum of the specified weighted estimates of the operator’s performance of a given set of tasks. The device contains adders 1, 2. shapers 3, 4 pulses, quad 5, adder 6, distributor 7 control of their pulses, switches 8, 9, distributor 10 of control of their pulses, keys 11, 12, 13, block 14 maximum signal, analog-to-code converter 15, AND unit 16, register 17, code-analog converter 18, amplifier 19, control pulse generator 20, counter 21, recorder 22, delay block 23, reset pulse driver 24. 3 il. I (L co i co Ci ate Guo

Description

The invention relates to automation and computing, in particular, to devices for controlling the quality of operator activity.

The purpose of the invention is to improve the accuracy of the device with an increase in the efficiency of the device by giving it functions that provide a calculation of the integrated assessment of the quality of the operator’s work.

FIG. 1 shows the general structure of the device; in fig. 2 is a control pulse driver circuit; in fig. 3 is a block diagram of the selection of the maximum signal.

The device (Fig. 1) contains adders 1 and 2, shapers 3 and 4 pulses, quad 5, adder 6, distributor 7 control pulses, switches 8 and 9, distributor 10 control pulses, keys 11 -13, block 14 of the selection signal, analog-to-code converter 15, AND 16 block, register 17, analog-to-code converter 18, adjustable amplifier 19, shaper of a control unit of a pulse, counter 21, recorder 22, delay block 23, a reset pulse shaper 24.

Shaper 20 (FIG. 2) contains a decipher 25, a key block 26, a weight amplifier block 27, and a reference voltage source 28.

Block 14 (Fig. 3) contains the limiting resistors, the load resistance, two diodes of the position in the drawing (not shown).

The device works as follows. Previously, the researcher adjusts the gain factors of the respective weight amplifiers 24 to the positions that determine the values of the relative importance coefficients of the tasks solved by the operator in the selected sequence of their presentation to the operator. Then the operator is presented with the first task, the execution of which requires the operator to implement several implementations characterized by the time or accuracy characteristics of their execution.

The discrete signal, which characterizes the quality of the operator’s performance (its time or accuracy characteristic in the implementation), goes to the distributor 10 and through the normally open d key 11 to the adder 1. From the output of the adder 1, since its input is shuffled with the corresponding element connection of the switch 8, a signal is taken proportional to h /

1 i

 Y, 2 hi and equal to mathematically

Denmark input after j-x implementations. The input signal, by means of the formation circuit of the modulator 4 and the quad 5, is squared and fed to

adder 2. From the output of adder 2, the voltage -D- is removed. S h, where a lot1 1

a factor

the connection in the feedback circuit of the adder 2. of the corresponding feedback element of the dial floor of the switch 9. The adder 6 receives a signal equal to the signal module hj at the output of the adder 1, since the circuit forming the former 3 is included in the circuit between them. simultaneously produces one of the items squared and the extraction of the root from the radical expression. The voltage at its output after the j-th implementation is proportional to the value

0

five

0

five

0

five

0

five

but,-

one

.

Chg

J-1 s

The input signal received in the distributor 10 is registered by a register counter and is fed to the distributor 7, which switches the feedback elements of the commutator 8 and 9, the adders 1 and 2, and also goes to the keys 12 and 13, through which printing results 1 after processing each implementation.

The results of the calculations of the parameter li, /, when the j-th implementation of the k-ii task (k, n) comes from the output of the key 13 on the input of the amplifier 19, the gain factor of which is set in accordance with the control signals received from the outputs of the formate; 1 20 equal to I / a. The signal equal to H / / from the output of amplifier 19 is fed to one input of block 14, to another input of which the output of converter 18 relieves voltage equal to the maximum value of the expected value of the operator's performance when performing previous tasks. This voltage is digitized.

After performing a specified number of implementations in the next task, the distributor 10 generates a signal that closes the first key 11 and indicates the termination of the test. On this signal, the elements AND 16 of the block are opened and the code value of the magnitude of the maximum voltage taken from the output of the block 14 is written into the register 17.

Thus, after completion of the tests, the output voltage of the converter 18 will form a voltage corresponding to the maximum of the weighted value of the expectation of task execution time.

After termination of the data acquisition at the moment of termination of the lock key 11 of the pulse, the signal block 23 is triggered, which forms the pulse of the unit in the counter 21. In accordance with the new

The driver 20 generates control signals that ensure that the coefficient of the amplifier 19 is set to be inversely proportional to the magnitude of the importance factor of the next task. Further, the cycle of operation of the device is repeated. After completing the job, the researcher resets the counter 21 and register 17 by pressing a button in the imaging unit 24.

The shaper 20 (Fig. 2) works as follows. The code value of the next task number, intended for presentation to the operator, goes from counter 21 to decoder 25. In accordance with the code value of the input number, decoder 25 opens one of the keys 26. Through the public key 26, the voltage of the source 28 goes to the input of the corresponding a weight amplifier 27 at the output of which a voltage is formed providing the change in the coefficient of amplifier 19 corresponding to the importance factor of the task. In the initial state, when the counter 21 is zero, and the operator is presented First, the task, the amplifier 19 has a gain equal to / a. A subsequent change of the code of the number recorded in the counter 21 causes the keys 26 to operate sequentially. Thus, the total number of keys 26 in the assembly and the weight amplifiers 27 is em (n - 1 ).

Block 14 works as follows. When two voltages arrive at the inputs of the unit 14 due to the action of the feedback circuit, one of the diodes at the input of which the lower voltage acts will be inhibited and the maximum voltage will be allocated to the load resistance.

Thus, the proposed device allows, based on a consistent dichotomous process of comparing the weighted results of the operator’s work in solving various types of tasks, to form a comprehensive assessment of its performance in terms of the mathematical expectation of the quality of work corresponding to a given specialization. The complexity of such a complex assessment allows more

reliably judge the quality of the operator's activities when performing a set of functional tasks related to the proposed professional activity.

This, in turn, makes it possible to increase the efficiency of the professional selection of operators and eliminate the errors of professional selection related to the lack of professional testing of candidates. Similar evaluation is similar

A set of devices can also be performed to estimate the parameter of the standard deviation of the quality of an operator's work.

15

Claims (1)

Invention Formula A device for assessing the professional suitability of the operators of automated control systems according to the author. St. o No 936010, characterized in that, with the aim 0 increases the accuracy of the device, a maximum signal extraction unit, an analog-code converter, an AND block, an input register, a code converter — an analog, an amplifier, a driver for a control pulse, a counter, a recorder, a delay block, and a reset pulse driver are entered. connected to the register and counter installation inputs, the information input of which is connected to the output of the delay unit, and the output to the input 0 of the control pulse generator, the output of which is connected to the control input of the amplifier, the information input of the amplifier is connected to the output of the third key, and the output to the first input of the maximum signal extraction unit, the second input 5 of which is connected to the output of the code-analogue converter, and the output - to the input of the analog-code converter, the output of which is connected to the first input of the block of elements P, the output of which is connected to the register's input, and the second input, with the first output of the main distributor. of the control pulses connected to the input of the delay unit, the register output is connected to the input of the code-analogue converter, the output of which is connected to the recorder's input. 18 Ri 13  f Thebes. 3 fie. 2