SU1437898A2 - Device for assessing occupational fitness of operators of automated control systems - Google Patents

Abstract

The invention relates to automation and computing, can be used to control the quality of the activities of operators in the process of their professional selection or training, and is an improvement of the invention according to the author. No. 936010. The purpose of the invention is to expand the didactic capabilities of the device by imparting to it functions that ensure the consistent testing of complex hypotheses about the classification of the quality of operator activity. The solution of the problem in the device is provided by comparing the computed statistics of the quality of an operator's activity over several cycles of its evaluation with a threshold value. Statistics for each class of operator's performance evaluation is calculated in pulse makers, which are sequentially connected subtractors, a quad and a summing amplifier. The minimum signal selection block is used to determine the most significant statistics. Statistics for this class is compared to a threshold value, which is calculated based on a conversion of pre-entered constants. The comparison of the significant statistics with the threshold value is carried out in the comparator. The signal from the comparator output permits the switching on of the display unit, on which the class number of the operator's quality assessment is displayed. 7 il. B (L 00 h 00 from 00

Description

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1143789

The invention relates to automation n computing, in particular. The quality of the operator’s quality control devices is complementary to the main iwc. No. 936010.

The purpose of the invention is the expansion of the didactic capabilities of the device.

the first constant, the node 32 of the second constant

Block 20 contains (figure 5) indicators 33, elements 34 I.

The max-5um selection unit 25 contains a Sfig.b) diodes and a load resistance and is intended for the maximum voltage acting

by giving it functions, provide-to at its inputs,

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These are consistent testing of complex hypotheses about the classification of the quality of operators.

Figure 1 shows the device; figure 2 - block diagram of the selection of the minimum signal; on fig.Z - diagram pulse shaper; 4 is a block diagram of the input of constants j in FIG. 3 is a block diagram of the display unit; figure 6 is a block diagram of the selection. maximum; Fig 7 is a diagram of the switch

The device (figure 1) contains adders 1 and 2, formers 3 and 4 pulses, quad 5, adder 6, dispenser 7 pulses, switches 8 and 9, dispenser 10 pulses ow, keys 11,12 and 3, block 14 input constants , group of drivers, 15 pulses, block 16 for selection of the minimum signal, group of keys 17, power 30 hoist 18, comparator 19, block 20 INDRG-kationiyz adder 21, amplifier 22, switch 23.

Block 16 is designed to determine the number of the former 15, the output voltage of which is minimal. It contains (figure 2) a group of inverters 24, a group of nodes 25 maximum selection, a group of comparators 26.

The formers 15 are designed to generate stresses proportional to the sum of the squares of the parameter differences determining the operator's performance in this cycle of research and the center value of this class of classification scale of estimates (e.g., 3-point, 5-point and TOD,). The number of formers 15 in a group is determined by the number of classes assigned by the researcher (for example, 3.5, etc.). Each shaper 15 contains (FIG. 3) serially connected subtracting unit 27, quadr 28, summarizing

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amplifier 29.

Input unit 14 (FIG. 4) nodes 30 centers of class of operators,

constants contains level settings

quality of de-tel unit 31 installation

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thirty

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The switch 23 is designed to connect in a certain sequence of resistances in the feedback circuit of the amplifier 22 in order to change its transmission coefficient, synchronously, with the arrival of the switching pulses of the distributor 10. It contains (7) serially connected counter 35, disinfector 36, a group of keys 37, button 38.

After switching on, the device operates as follows.

The following values of stresses are preliminarily determined by the investigator in block 14: in nodes 30, stresses are established proportional to the levels of the centers of the operator's quality classification of the operator; at node 31, a voltage proportional to the value of the first constant is set; node 32 sets a voltage proportional to the value of the second constant.

The discrete signal characterizing the quality of the operator’s performance (its temporal or accuracy characteristics in the implementation) goes to the distributor 10 and through the normally open key I1 to the adder 1, From the output of the adder, since its input is backed up by the corresponding feedback element of the switch 8 A signal equal to the expectation of the input signal after a certain implementation is taken. The input signal is transformed and supplied to adder 2 by means of the generator module 4 and quad block 5 to the adder 2. The output of the adder 2 is relieved of voltage multiplied by a factor by connecting in the feedback circuit of the adder 2 of the corresponding feedback element of the modular floor switch. 9. The adder 6 receives a signal equal to the modulus of the input signal at the output of the adder 1, since the circuit between them includes the formation circuit of the forwarder 3. The adder 6 produces

at the same time building one of the items in a square and extracting the root from the radical expression.

The input signal received by the distributor IO is registered to the distributor 7, which switches the feedback elements of the switches 8 and 9, adders 1 and 2.

After several implementations by the command from the distributor 10 for the time required to register the quality of the operator’s work, the keys 12 and 13 are opened. From the output of the key 12, the voltage proportional to the mathematical expectation of the quality of the operator’s work is removed, and from the output of the key 13 who is rejected. At the same time, the input key 11 is closed at the same time. This completes the first cycle of assessing the quality of the operator’s work. Number of implementations In each cycle, the choice is made based on the conditions to ensure the required accuracy of the estimate. .

The measured quality parameter (in this case, its expectation) in each measurement cycle is fed to the inputs of the formers 15 Each of the formers 15 for several cycles of measurement of the quality of operator activity generates a voltage proportional to the calculated sum.

The amplifier 18 is designed to match the output resistances of the keys 17 with the input resistance of the comparator 19.

Further, the minimum voltage is compared in the comparator 19 with the voltage generated by the adder 21.

To form this voltage, the summing input cVMMaTOpa 21 is supplied from node 32, and the subtracting input is supplied from the output of amplifier 22. The multiplication by cycles is measured by switching the resistances in the feedback circuit of amplifier 22 by switching switch 23, which switches feedback resistances at the end of each measurement cycle on the signals from the distributor 10,

Thus, the triggering of compaptopa 19 indicates that the required amount of testing has been achieved in order to make the final decision on

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Fikatsii quality operator's activity. The control voltage of the comparator 19 is supplied to the second inputs of the elements 34 of the block 20, the first inputs of which are supplied, the control voltage from the corresponding outputs of the block 16. The outputs of the elements 34 are connected to the inputs of the corresponding indicators 33. Thus, the presence of a control signal exit. RATOR 19 triggers the indicator, the number of which will correspond to the number of driver 15, the output voltage of which is minimal. In accordance with the entered criterion, this number will determine the quality class of the operator’s activity, which is evaluated in this case by the value of the mathematical expectation of the characteristics of its activity.

Block 16 works as follows1-1M way. The voltage from each shaper 15 is fed to the inputs of the corresponding inverters 24. The inverted voltages from the outputs of the inverters 24 are fed to the first inputs of the respective comparators 26, to the second inputs of which voltage is supplied from the outputs of the corresponding nodes 25. The nodes 25 separate the maximum voltage from voltages arriving at their inputs. Each node 25 contains 22 diodes connected in parallel on a common load. Due to the presence of feedback through resistance on Him, the maximum voltage among all sources connected to the inputs of the diodes is distributed. The inputs of the nodes 25 are connected to the outputs of all inverters 24, the numbers of which are different from the selected ones.

Thus, the voltage from this inverter 24 in the comparator 26 is compared with the maximum value of the voltages at the inputs of all the other inverters 24. The comparator 26 is activated if the voltage at the input of the corresponding inverter 24 is minimal. Further, the control voltage of the inverter 26 is used to turn on the keys 17 and the indicators 20.

The switch 23 operates as follows.

Switching impulses coming from distribute 10 after realizing the measurement of the quality of activity

thirty

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The operator is counted by the counter 35, the outputs of which are connected to the decoder 36, which includes certain keys 37. Thus, each number of the counter 35 will correspond to the inclusion of a certain key 37, which closes the resistance corresponding to the pulse number of the amplifier 22. After the comparator triggers 19 and displaying information on block 20, the researcher presses the button 38. At this voltage, the external source enters the obnuyushchy input of the counter 35, returning it to its original state.

Thus, the device makes it possible to effectively solve complex problems of classifying the quality of an operator’s work. The high efficiency of application of the device is due to the fact that the assessment of the quality class of the operator’s work is carried out according to statistical criteria that provide a strictly optimal number of measurement cycles of selected quality indicators. On the other hand, the efficiency of application of the device is due to the ability to quickly change the numerical characteristics of the centers of the operator's assessment classes.

Claims (1)

Invention Formula A device for assessing the professional suitability of operators of automated control systems according to the author. No. 936010, distinguished by 5 0 5 0 five In order to expand the didactic capabilities of the device, a task level training unit, a group of pulse drivers, a minimum signal selection unit, a group of keys, a first amplifier, a comparator, a display unit, a fourth adder, a second amplifier, and the third switch, the first and second inputs of which are connected respectively to one of the outputs of the first pulse distributor and to the output of the second amplifier, and the output to the first output of the constant input block and the input of the second amplifier, the output of which Connected to the first input of the fourth adder, the second input, which is connected to the second output of the training level setting block, and the output is connected to one comparator input, the comparator output is connected to the input of the display unit, and the other input is connected to the output of the first amplifier the corresponding keys of the group, one inputs of the pulse shapers of the group are connected with the output of the second key, the second inputs with the corresponding outputs of the group of the training level setting block, and the outputs with the first inputs of the corresponding boiling key group and the corresponding inputs of the signal minimum selection unit, the outputs of which are connected to second inputs of sootvetstvuyuodih key group and the group to respective inputs of the indication unit 29.1 29.L 29.1 777, J4. 77.1,3.1 nff, 3.f ( FIG. 2 26L26.L26.K Fig.z four. LLZ.B 9U2.7 i } -38