SU1259322A2 - Device for evaluating work-performance capabilities of operators of automatic control systems - Google Patents

Abstract

The invention relates to technical means for assessing the professional suitability of operators of automated control systems and can be used in controlling the quality of operator training. The purpose of the invention is to improve the accuracy of the integral assessment of the quality of the operator’s performance by implementing in the invention a method of assessing the quality of the operator’s performance according to the homeostatic stability of his work. The purpose of the invention is achieved in that an analog-digital converter, three additional pulse drivers, fourth, fifth, fifth, seventh and eighth adders, third and fourth switches, fourth and fifth keys, and additional pulse distributor with circuit connections causing an increase in the accuracy of the estimate. 2 hp f-ly, 4 ill. and S (L go ate from 00 to 1C Go

Description

The invention relates to automation and computing, in particular to devices for controlling the quality of activity, can be used to control the quality of training or the training of operators of various profiles and is an improvement of the known devices according to Aut. No. 9360) 0.

The purpose of the invention is to improve the accuracy of the assessment.

FIG. 1 shows the structure of the proposed device; in fig. 2 is a diagram of a pulse former; FIG. 3 is a circuit of a pulse distributor; FIG. 4 - diagrams showing the operation of the pulse shaper.

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, third, fifth and the fourth formers 14-16 pulses, respectively, the adder 17 switch 18, analog-digital converter 19, switch 20, adder 21, distributor 22 pulses, adder 23, adder 24, keys 25, switch 26 key 27, adder 28, input bus 29 (data on the intensity of task assignment) and bus 30 for entering response data operator.

Shapers 14-16 contain the converter 31 analog-code, register 32, converter 33 code-analog and adder 34.

The distributor 22 includes a pulse shaper 35, a counter 36, a trigger 37, an AND 38 element, a pulse shaper (write and read) 39 and a push-button switch 40.

The device works as follows:

at once.

The discrete signal (Aj) characterizes the quality of the operator's performance (its temporal and accuracy characteristics) in the i - th experiment of the jth realisation at the intensity of the incoming; Lenin processing tasks equal to A.,

J

enters distributor 10 and, via normally open key 11, to adder 1. From the output of adder 1, since its input is shunted by the corresponding feedback element of Switch 8, the signal proportional to

bi, | Z: b, j ,, U,) H equal J: l

five

0

five

0

five

0

after the i-th experiment j-and the implementation of the input signal h. (/) is converted into a signal b (A) by the modulator forming unit 4 and quad 5 and fed to adder 2. From the output of c.vMMaTopa 2,

 .-f g 2

voltage is -r -2b - (A-i), where

 multiplication by the coefficient / j occurs due to the connection in the feedback circuit of the adder 2 of the corresponding feedback element of the keypad field of the switch 9. The adder 6 receives a signal equal to the signal module hj (АJ at the output of the adder 1, since the circuit between them is included Formation of the modulator module 3. The adder 6 simultaneously performs the construction of one of the components in a square and the extraction of the root from the radicapulum. The voltage at its output after the i-ro experience j and the implementation is proportional to

e, -jU,) - / rr | I, Y. (- - The input signal received by the distributor 10 is registered by the counter and a distributed distributor 7 arrives, which switches the feedback elements of switches 8 and 9, adders 1 and 2 and also sends a signal to the keys 12 and 13, through which the results of the calculation are printed after processing a certain number of experiments of each realization.

The number of experiments and implementations is selected from the condition of ensuring the required reliability of the obtained statistical data.

At the same time, the values of the mathematical expectation h- (Aj) of the standard deviation 6- (A), which characterize the quality of the operator in the j-implementation, from the outputs of the keys 12 and 13 are fed to the inputs of the formers 14 and 16, which after the second implementation (j; 2) determines the magnitudes of changes in the parameters hj (Aj) and 6j (L), i.e.

b, (a) b (,, (a,) and

d6LD) 6 (Lr-6. / L. During the transition from one implementation (J-1) to another j, the intensity of task delivery to processing changes. At the same time, after each J-1 implementation, the counter of the distributor 10 is cleared. As a source of information of the magnitude of the /; serves (as in the known device) a measuring system that provides discrete data that determine the quality of the operator’s work.

The discrete signal, characterizing the value of the parameter, goes through bus 29 to valve 22, where a driver 35, which is a serially connected differentiating chain and pulse intensifier, is recorded in

counter 36. At the same time, a pulse from the output of the imaging unit 35 triggers the flip-flop 37 into a single state, which opens element 38. Then, with all subsequent realizations (), the pulses from the imaging unit 35 pass through the element 38 and arrive at the input of the imaging unit 39.

The shaper 39 generates two time-separated pulses (read and write fig. A). The distance between read pulses I ii is chosen based on the conditions that ensure the absence of mutual distortions of information during recording and reading.

In each implementation, the values of the parameters b j (L j), 6j CAjX / ljB of the former 14-16 are fed to the converter 31, where they are converted into a digital form. At the same time, the values of these parameters are fed to one input of the adder 34, to the other input of which a read pulse (Fig. 4) fed to the register 32 is transmitted through the converter 33, which characterizes the value of these parameters in the previous (j-1) -th implementation. In the process of action of discrete signals h. and & the shaper 39 generates a write pulse (FIG. 4) according to which it performs by overwriting the code values of the parameters h, 6j, (j from the converter 31 to the register 32.

Thus, at the output of drivers 14–16, after the first implementation, discrete sig

, 50

five

0

cash equal to the increment of the parameters h. , 6-, ilj in j-implementation compared with (J-1) -th.

The value of the difference from the speed of the driver 15 enters the converter 19. The value of the difference dD.

J

converter 19 is digitized. The code signals determining the magnitude of the difference are fed to the inputs of switches 18, 20 and 26, which, in accordance with the code value dA; switch the scale resistances in the feedback loops of the adders 17, 21, and 24.

Simultaneously:; but the signals of the differences Ц and US - from the output of the formers 14 and 16 are fed to the inputs of the adders 17 and 21.

Due to the connection in the feedback circuits of the adders 17 and 21 of the corresponding feedback resistances by the switches 18 and 20, signals equal to are output from the outputs of the adders 17 and 21

.B, (. AL

DD:

And uh

aj

a 6; (BUT,)

YES ;

those. the rate of change of the quality indicators of the operator.

These signals are sent to the adder 23, the adder 23 produces their squaring and weight summation.

From the output of the adder 23 signal equal to g- 1 2 2 °

1.4.b

is fed to the input of the adder 24, in which the switch 26 connects feedbacks from the signals of the converter 19, which in each realization produces a signal at the output equal to

2 D A j j (J --5 - GT

 1 j ° 2 j

Signals equal to otj (Aj) A / j over t realizations when examining the quality of an operator in conditions of a change in the intensity of tasks arriving for processing in the range from Л „„ to А, arrive at adder 28, where

is the sum of the form Y ot-j (A j) uAj, which approximately characterizes the level

homeostatic stability of the operator in the system.

The results of the calculations are made through the key 27, which is opened by the signal from the distributor 22 after examining the work of the operator in terms of the intensity of tasks in the range from / Key 27 is unlocked by the signal removed from the last bit of the counter 36 after the trainings implementations have expired. At the time of completion of the work on the signal of the counter 36, the key 25 is closed and the device is turned off.

Thus, the invention provides an increase in the reliability of the evaluation of the efficiency of human-machine information processing systems. Its main advantage over the existing evaluation devices is that it provides a calculation of the integral quality of the human-machine systems (SMM), taking into account the entire dynamic range of assigned to the processing operator tasks. This makes it possible to eliminate gross errors in the comparative evaluation of several variants of the organization of man-machine systems having different structures. The known devices for evaluating the efficiency of the EFM provide for obtaining the indicated data on the effectiveness only with a specific value of the parameters of the intensity of incoming tasks for processing, i.e. under certain conditions of system operation. Any change in the conditions of the System Operation leads to a change in the particular performance indicators. Due to the substantial non-linearity of the dependence of particular efficiency indicators of real FMS on the conditions of their operation, the use of existing evaluation devices can lead to ambiguity of the obtained results, which is unacceptable in a comparative assessment of several man-machine systems (for example, when choosing the most efficient version of FMS).

The invention makes it possible to increase the reliability of the results and conclusions of engineering and psychological studies related to the analysis of the effectiveness of man-machine systems and the search for the most rational structures,

The economic feasibility of using the proposed device is determined by the humidity of a rational solution of organizational problems, the management of the SMP, allowing to increase labor productivity by 10-15%.

Claims (3)

1. A device for assessing the professional suitability of operators of automated control systems according to author. No. 936010, characterized in that, in order to improve the accuracy of the estimate, a third pulse generator, a fourth adder and a third switch, the output of which is connected to the input of a fourth adder, a fourth pulse generator, a fifth, and five fourth switch whose output is connected with the input of that adder, the sixth adder. The first and second inputs of which are connected to the outputs of the fourth and fifth adders, respectively, serially connected pulse distributor and fourth key and serially connected fifth pulse shaper, analog-to-digital converter, fifth switch, seventh adder, eighth adder and fifth key, output which is an additional output of the device, and the second input is connected to the second output of the pulse distributor, the third output of which is connected to the first inputs of the third, fourth and nth pulse drivers I whose second inputs are connected to the outputs of the second, third and fourth switches, respectively, the output of the analog-digital converter is connected to the second inputs of the third and fourth switches, the output of the sixth adder is connected to the input of the seventh adder, the output of which is connected to the second input of the fifth switch , the inputs of the pulse distributor and the fourth key are connected to the input bus of the device 2. The device according to claim 1, which is based on the fact that, in it, the third, fourth and fifth pulse shapers contain successively The included analog converter, code, register, analog code converter and adder, the output of which is the output of the driver, the second and third register inputs and the second input of the code analog converter are the code input of the driver, and the converter analog input and the second input adder - the second input shaper, 3. The device according to claim 1, differs to the fact that in it the pulse distributor contains the first connected in series A pulse and counter, the output of which is the first and second outputs of the distributor 1, and successively connected switch, trigger, element And and the second pulse generator, the outputs of which are the third output of the distributor, the second trigger input is connected. to the output of the first pulse shaper, connected to the second input of the element Ij, the switch output is connected to the second input: the transducer input of the first pulse shaper is the input of the distributor. 1