SU1150641A2 - Device for checking the level of operator's training - Google Patents

Abstract

1. DEVICE FOR CONTROL OF THE LEVEL OF PREPARATION OF OPERATORS in auth. No. 903940, characterized in that, in order to improve the accuracy of the assessment, sequentially included standard input block, discriminant function generator and recorder are entered into it, the second, third and fourth inputs of the discriminator function generator are connected to the first, second and third outputs of the definition block, respectively operator training level. 2. The device according to claim 1, characterized in that the discriminant function driver contains weighing amplifiers of a positive evaluation, a negative evaluation and operating conditions, the inputs of which are the second, third and first inputs of the imager, and the outputs are connected to the first, second and third, respectively the adder's inputs, the code-analogue converter, whose input is the fourth input of the former, and the output through the error weight amplifier is connected to the quarter-input of the adder, the output of which is connected to the first the input of the comparator, the second input of which is connected to the output of the unit for input of the standards, and the output is the output of the driver. 3. A device according to claim 2, characterized in that the weighing amplifier of positive and negative evaluations contains sequentially connected reference generator, switch and evaluation signal generator, the output of which is the output of the amplifier, and the input of the standards generator is the input of the amplifier.

Description

The invention relates to the technical means of control and can be used to assess the level of training of operators. According to the main auth. No 903940, a device is known for CONTROL of the operator’s training level, which contains a rating indication unit, an operator response input unit, information output unit connected to an analysis unit, a determination unit, -: an operator preparation level, whose inputs are connected to the analysis unit outputs, and codes are connected with the inputs of the evaluation indication unit and the information block, the output of the input unit of the operator’s responses is connected with the input of the analysis unit Cl The disadvantage of this device is the low accuracy of the operator’s estimate, since are taken into consideration instead of operating conditions .ego, among which include the complexity of problems to be solved, and the intensity level at arrival processing tasks, various factors, defining the conditions of occurrence of stress and the like The study of the real activity of the operator taking into account the listed conditions of its functioning is not always possible due to time, technical, cost and other restrictions. Therefore, it is not possible to simply take into account the conditions of the operator's activity by the corresponding changes in the coefficients of the unit determining the level of preparation of the device. In such cases, the operator's level control device must allow correction of the operator's assessment for different conditions of its operation. The purpose of the invention is to improve the accuracy of the assessment by realizing the possibility of correcting the operator's assessment taking into account the conditions of its functioning. This goal is achieved by the fact that sequentially switched on the input block of standards, the discriminator function disc, and the recorder are entered into the device for controlling the level of operator training, the second, third, and fourth inputs of the forcing unit of the fouacod are connected to the first, second, and third outputs of the matching unit operator training level Shaper discriminant. The functions contain weighing amplifiers of positive evaluation, negative evaluation and operating conditions, the inputs of which are respectively the third, third and first enter the former, and the outputs are connected respectively to the first, second and third inputs of the adder, the converter has an analogue input, which is the fourth input of the former; and the output through the weight error amplifier is connected to the fourth input of the adder, the output of which is connected. To the first input of the comparator, the second input of which is connected to the output of the reference input unit s, and the output is the output of the shaper. The weight amplifier of positive and negative evaluations contains, successively, a driver of standards, a key and a driver of evaluation signals whose output is the output of the amplifier, and the input of the driver of the standards is the input of the amplifier. FIG. 1 shows a block diagram of the device; in fig. 2 is a block diagram for determining the level of training; in fig. 3 shows the pattern of discriminant functions; in fig. 4 is a diagram of the weight amplifier of positive and negative ratings. The device contains (Fig. 1) an information block 1, the output of which is connected to one input of the analysis block 2, which is a decoder, another input of which is connected to the output of the operator response input block 3 (a set of keys), the operator preparation level definition block 4 , the evaluation indication unit 5, the operator’s workplace 6, the registrar 7, the unit 8 for inputting standards and the imaging unit 9 of discriminant functions. Block 4 (FIG. 2) contains adders 10 and 11, comparison nodes 12 and 13, adder 14, element 15, reference condition sensor 16 (control), adder 17, and multiplication node 18. The shaper 9 (Fig. 3) contains the weight amplifier 19 positive evaluation, the weight amplifier 20 negative evaluation, weight amplifiers 21 working conditions (operator), the Converter 22 code analog, adder 23, comparator 24, weight

3

amplifier 25 errors and block 26 input standards.

The amplifier 19 and 20 are identical and each of them contains (FIG. A) serially connected reference generator 27, a key 28 and evaluation signal generator 29

The device works in the following way.

The test subject is given a problem 1 through block 1, after which he enters the answers through block 3 into block 2, generating a signal about the entered answer and its erroneousness for block 4, which gives a signal of passing or failing to block 5. At the same time, these signals are from one the outputs of block 4 are fed to the inputs of the imaging unit 9 of the discriminant function, and from another output of block 4 to the input of the imaging unit 9 information is received (in the form of a binary code) about the number of errors made by the operator. The researcher, by pressing the corresponding keys of block 8, makes the connections f of the calibrated input voltage of the shaper 9 discriminant functions, the indices of which correspond to the factors determining the conditions of the operator's work. In accordance with the conditions of the operator's work, determined by the set of keys pressed by the block 8, the driver 9 corrects operator's estimates, which is registered in the registrar 7. The operator's estimates of correction can be promptly performed for various conditions of his work in the possible combinations of keys pressed block 8.

Consider the operation of the device for the case of double-bed assessment of the level of operator training.

In this case, the device produces some of the ratios

 + Adp,

(1) w Aj-t-A p,

enfi-en (i-p)

A

, KP20-Pi) - "4Pi {-Pa}

enii-jii-endt

,),)

gn (i-p) -en (i-Pa)

A "

(-PllI "4 (P2)

0641. L

where p is the maximum percentage of errors

for evaluation; R. - minimum error to evaluate

ot is the highest probability that a really poorly trained operator is rated as unprepared,

Q p is the highest probability that a truly unprepared operator is rated as prepared; m - the number of errors when performed. Research Institute of tasks.

The values of the coefficients of magnitudes.

AO, AI, and AG. calculate for npocTbix (fixed) conditions of the operator’s work using formula (1) and are set by the experimenter by means of a baseline sensor 16 (control). The value of n is equal to the number of tasks presented and the value is generated at the output of accumulating adder 17 and is fed to one input of node 18 / multiplication. At the other input node 18 receives a signal about the value of L from the sensor 16 of the reference conditions (control). Signal

equal AdP goes to one input of adders 10 and 11. To another input of adder 10, the signal from sensor 16 is equal to A, and to another input of adder 11 is a signal equal to 5 Ar. From the output of the adder 10, the signal equal to A + AO is fed to one input of the comparison node 12, and from the output of the adder 11, the signal is equal to one input

0 node 13 comparison. The other inputs of nodes 12 and 13 receive a signal equal to the number of erroneous decisions (m) and formed at the output of accumulating accumulator 14. Nodes 12 and 13

5 check the above inequalities. There can be two outcomes: either one of the inequalities is satisfied, or both inequalities are not exceeding. In the first

In the case of a matching circuit, the comparison circuit generates a signal arriving at block 5 of the indication of estimates. If it is a signal from node 2, then block 5 indicates an estimate. Passed, and

5 if from node 13, I did not pass. In the second case, the nodes 12 and 13 produce signals acting on the inputs of the element And 15, which, in turn. I works out. a signal to continue the tests for unit 1. Signals from nodes 12 and 13 are fed to the appropriate weight amplifier 19 or 20 to form the results of the estimates. The signals from nodes 12 and 13 open the keys 28 and a reference voltage is applied to the inputs of the adjustable amplifiers 19 (20), which is amplified and fed to the inputs of the adder 23. The inputs of the adder 23 also receive voltages proportional to the number of errors made by the operator and the number of working conditions (from the outputs of weighing amplifiers 21 operator working conditions). . The gains of the weight amplifiers 19, 20, 21 and 25 are set proportional to the coefficients of the discriminant function, calculated in advance by the researcher according to the well-known training sample. In this case, the discriminant on a function is considered as an integral estimate of the operator. Its arguments are the factors: the assessment of the operator's activity under simple (fixed) conditions, the number of errors he made while performing the task, as well as factors determining the conditions of the operator’s work (for example, the intensity of task arrival, the intensity of the operator’s work, and environmental characteristics etc.), accounting for which in the device is carried out by pressing the corresponding set of keys of block 8 and setting gain factors for the weight amplifiers 21. When you press the key of block 8, the source of reference voltage p It is connected to the input of the corresponding weight amplifier. Similarly, according to the values of the coefficients of the discriminant function, the gains of the amplifiers 19, 20 and 25 are preset. The correctly calculated discriminant function changes its sign from positive to negative when the vector of its arguments passes from a state that is evaluated positively ( Grade 14 Surrendered) to the state clothed negatively (Grade Not Pass). Thus, by changing the coefficients of the amplifiers 21 and pressing the key of the block 8, the researcher provides a change in the value of the discriminant function of the operator's evaluation modulated at the output of the adder 23. The correction of the operator's estimate is realized by comparing the magnitude of the voltage at the output of the adder 23 with the reference voltage of the block 26. The magnitude of the reference voltage is set in advance and corresponds to the simulated value of the discriminant function equal to zero. In this case, the signal taken from the output of the comparator 24, indicating that the voltage of the adder 23 is greater than the reference voltage, corresponds to the estimate Passed. Otherwise, not passed. The adjusted score is displayed on the registrar 7. In the event of a change in the perception of the influence of various operating conditions of the operator on the assessment of the quality of its activity, the calculation of the coefficients of the discriminant function of the assessment of the operator is based on a new training set. For the case of a P-point evaluation, the sensor 16 sets the i + baseline control, while block 4 will consist not of two chains (Fig. 2), but of I chains, and the discriminant functions generator 9 will contain formation chains. The invention has a greater efficiency in determining the level of preparation, as it gives the opportunity to quickly carry out the correction of the operator's assessment, taking into account the various conditions of his work. The need for such information in some cases is dictated by the fact that some of the characteristic words of the functioning of the system cannot be recreated in economic or other terms.

by 19.5

T

CO 2

on 29 V

on 20. s

with. 2

FIG. 2

l

Jl

28)

25

i7 7

".four

FIG.

Claims (3)

1. DEVICE FOR MONITORING THE LEVEL OF PREPARATION OF OPERATORS by ed. No. 903940, characterized in that, in order to improve the accuracy of the assessment, it is equipped with sequentially included unit for inputting standards, a discriminator of functions and a registrar, the second, third and fourth inputs of the generator of discriminant functions connected respectively to the first, second and third outputs of the block determine the level of training of the operator. 2. The device according to claim 1, characterized in that the discriminant function generator comprises weight amplifiers of positive evaluation, negative evaluation and operating conditions, the inputs of which are the second, third and first inputs of the former, respectively, and the outputs are connected respectively to the first, second and third the adder inputs, a code-analog converter, the input of which is the fourth input of the driver, and the output through the weight error amplifier is connected to the fourth input of the adder, the output of which is connected to the first input to a device, the second input of which is connected to the output of the input unit of standards, and the output is the output of the shaper. 3. The device according to p. 2, characterized in that the weight amplifier of the positive and negative evaluations contains serially connected shaper of standards, the _key and shaper of evaluation signals the output of which is the output of the amplifier, and the input of the shaper of standards is the input of the amplifier. 1 11