SU1718809A1 - Device for carrying out proof tests - Google Patents

Abstract

The invention relates to a device for carrying out correction tests. A device for carrying out correction tests relates to psychophysiology. The purpose of the invention is to increase the reliability of the results of experimental studies. The device contains a correction table 1 with applied conductive signs 2, combined into two groups, timer 15, two counters 12 and 13. included between the inputs of the counters and two groups of current-conducting signs, memory block 3, block of drivers 7, two combining blocks 8 and 9. sources of illumination of conductive signs 17 connected to the outputs of the memory block, electrical probe 20. New is the connection between the outputs of the memory block and the third inputs, the counters of the second block of drivers 7, two blocks 8 and 9 of the combining, insertion buttons 19, connected between the common point of the device and the third input of the memory unit. The cells of the memory block are placed on O-triggers, and the counters are reversible, 1 sludge. SO with

Description

00

OE

oh che

The invention relates to psychophysiology and medicine and can be used in studies by the method of correction tests in rehabilitation, vocational guidance and occupational clinics, for example, in determining such a human psychophysiological factor as the speed of information processing.

The speed of information processing during the selection process in most cases is determined by the method of correction tests using a table of Landolt rings.

It is known that, in order to automate the counting of correctly and incorrectly crossed out marks and registering the time in devices, it is proposed to make signs of the proofreading table conductive. In these devices, the conductive signs are electrically connected into groups (according to the orientation of the ring slots), and each group is connected to the input from the entire counter. The subject, by touch with an electric probe connected to the common point of the current-carrying device, changes the potential on it. The resulting pulse is fed to the input of the counter. Moreover, when the specified group of conductive signs is touched, the pulses go to the counter, counting the correct strikeouts, and if not indicated signs are touched, to another counter, counting the incorrect strikeouts. The time marker records the time for striking current marks. The closest to the invention is a device containing a correction table made of translucent dielectric material with written conductors of characters, a memory block having a number of cells equal to the number of conductive signs, and one of the inputs of which is connected to the cable To the sign, the light sources located under each conductive sign and connected by one pin to the output of the corresponding memory cell, the second leads of all the light sources are combined and connected to the switch, It closes them to a common point of the device, a driver, the inputs of each cell of which are connected to the corresponding outputs of the cells of the memory unit, two combining units whose inputs are respectively connected to the outputs of the cells of the former belonging to the same group of current-conducting characters, two counters whose inputs respectively connected to the outputs of the units of the union, the timer in the belt, the button connected to one of the inputs of the timer, the second output of the button is connected to the common

wire, scanned row sensors, connected to another timer input, correction table indicator light, connected to the output of the timer

time, a reset button connected to the second inputs of the counters, the memory unit and to the third time input, the probe connected to the common point of the device.

0 Before the experiment starts, the button turns on the timer, the light indicator on the correction table lights up, which serves as a signal to start the experiment. Subject, look through the line, touch the signs of the indicated type with an electric probe. At the same time, when the touch-probe touches the next crossed out sign, the illuminating source illuminates under the crossed out sign, and the contents of the corresponding

The 0 counter is changed by one. At the end of the table scan, the subject touches the sensor of the last scanned row. In this case, the timer will register the time of viewing the table, and in

5 counters will store the numbers of correctly and not correctly crossed out conductive signs.

A disadvantage of the known device is the distortion of the results of the study, due to the fact that the device does not provide for the correction of erroneous strikes. Such a need may arise both if the electrical probe is accidentally (unintentionally) touched by the conductor of the 5th sign, and if the subject detects an error (in the course of the experiment).

The aim of the invention is to increase the reliability of the results of the research, due to the possibility of correcting erroneous strikethroughs.

The goal is achieved by the fact that a device containing a correction table made of translucent

5 dielectric material with conductive marks applied, a memory block having a number of cells equal to the number of conductive signs and one of the inputs of which is connected to a conductive sign,

0 sources of illumination, located under each conductive sign and connected by one output to the output of the corresponding cell of the memory unit, the second outputs of all the sources of illumination are combined and connected to a switch that closes them — to the zero potential bus, the first group of drivers, the outputs of each cell of which are connected to the corresponding outputs of the cells of the memory block, two combining blocks whose inputs are respectively connected to the outputs of the cells of the former belonging to the same group of conductors c, two counters, the inputs of which are connected to the outputs of the combining blocks, a timer, a button connected to one of the inputs of the timer, the second output of the button is connected to the common wire, sensors of scanned lines connected to another input of the timer, the indicator light of the correction table, connected to the output of the timer, a reset button connected to the second inputs of the counters, a memory unit and to the third input of the timer, an electrical switch connected to the common point of the device, the second group was entered the inputs of each cell of which are connected in parallel to the inputs of cells of the first group of drivers, two combining units whose inputs are respectively connected to the outputs of the cells of the second group of driver that belong to the same group of conductive signs, and the output of each combining unit is connected to the third input of its counter, button correction, closing the third input of the memory unit to the zero potential bus, each cell of the memory unit uses a D-flip-flop, and both counters are reversible. :

When an error is detected, the subject, having previously pressed a button, with an electro-probe re-crosses out the sign. In this case, the corresponding cell of the memory unit returns to the initial state, and the contents of the corresponding counter are reduced by one. Consequently, the observed results and random (unintended) strikethroughs are excluded from the result of the experiment, thereby increasing the reliability of the experimental results.

The drawing shows: a block diagram of a device for carrying out correction samples.

The device for correction samples contains a translucent correction table 1 with two groups of 2 conductive signs connected to the first inputs of memory block 3, the number of slots of memory block 3 is equal to the number of conductive signs 2, light sources 4 located under each conductive sign 2 .and connected by one output to the outputs of the corresponding cells of memory block 3, and the second outputs of all sources 4 of the light are connected to the switch 5, the second output of the switch 5 is connected to the zero potential bus, two groups of drivers 6 7. the inputs of each cell of which are connected in parallel and connected to the corresponding outputs of the cells of memory block 3, the number of cells of drivers 6 and 7 is equal to the number of conductive signs 2, blocks 8 and 9 of the union 5 whose inputs are connected to the outputs of those cells of drivers 6 and 7. which belong to the same group of conductive signs 2, blocks 10 and 11 of the combination, the inputs of which are connected to

0 outputs of cells of formers 6 and 7 belonging to another group of conductive signs 2, counter 12, the first and third inputs of which are connected respectively to the outputs of combining blocks 8 and 9,

5 counter 13, the first and third inputs of which are connected respectively to the outputs of blocks 10 and 11 of the combination: sensor 14 scanned lines located at the end of each row of the correction table 1, time indicator 15, one of the inputs of which is connected to the sensors 14 scanned lines, button 16 . Included between the common point of the device and the second input of the timer 15, the indicator light 17

5 correction table connected to the output of the timer 15, a reset button 18 connected to the second inputs of the memory block 3, counters 12 and 13 and to the third input of the timer 15, a correction button 19 connected between the third input of the memory 3 and a zero potential bus, an electro probe 20 used to cross out signs and connected to a zero potential bus.

5 Correcting table 1 is a translucent sheet material (plexiglas), on which the conductive signs 2 are applied in the form of rings having two types of orientation of breaks. Under each smoke, a miniature source of 4 illumination is mounted. Indicator light correction table 17 is located at the top of table 1.

5 A counting trigger with a preset D-trigger is used as the memory location of the memory block 3 (K-triggers can also be used). All R-inputs of the installation in About 3 cell triggers are combined and connected to the reset button 18, counting C-inputs are connected to their conductive signs 2, and D-inputs are combined and connected to the correction button 19. Each cell of the driver 6 generates a pulse at the output for a positive one, the driver 7 for a negative voltage drop at the input of the cells. Counters 12 and 13 are reversible, having an input for summing and subtracting the number of pulses,

The device works as follows.

Before the test, counters 12 and 13, timer 15 and memory block 3 are set by button 18 to the initial state. The indicator light of the correction table 17 and the backlight indicators 4 are off. After the subject is instructed, the experimenter presses button 16. The indicator light of the correction table 17 turns on, which serves as the signal for the subject to start the experiment, the time starts to be the 15 meter of time.

The test probe 20 starts to cross out the signs of the specified type. When the electrical probe 20 touches the conductive sign 2, the voltage drop arrives at the C input of the corresponding cell of the memory unit 3 and sets it to the single state, since the potential of the logical unit acts on all D inputs of the trigger units at the D and C inputs can be obtained by connecting them through a resistor to a power source). At the output of the cell (trigger) of memory block 3, a positive voltage drop will occur, which will trigger the corresponding cell of the former 6. The cells of the former 7 will not generate pulses, since they are only triggered by negative voltage drops. From the output of the cell of the imaging unit 6, the pulse arrives (pass through block 8 or 10) to the first (summing) input of counter 13. The counters 12 and 13 are reversible, having summing and counting inputs (as such counters, you can use E155IE6, K155IE7 chips). The contents of counters 12 or 13 are incremented by one. In the cells of the formers 6 and 7, the K155AGZ microcircuit can be used, having a trigger input with a positive D and a negative D voltage drop. Uniting blocks 8-11 can be performed on chips 155LA7. Having crossed out the first character, the subject crosses out the next one, one is added to the contents of counter 12 or 13, and so on.

If an error is detected or the touchpad is accidentally touched by the touchpad 20, the test subject can correct it. For what him. it is necessary to press the correction button 19 and repeatedly cross out (correct) the incorrectly crossed out conductive sign 2. In this case, the zero potential is applied to all D-inputs of the trigger cells of the memory block 3. The voltage drops arriving at the C inputs of the triggers arising from crossing the characters set the trigger of the corresponding cell to the initial state ng. (Low potential at the output of the cell). The backlight indicator 4 illuminating this sign will go out. The negative differential in the corresponding cell of the imaging unit 7 generates a pulse, which through block 9 or 11 of the combination will go to the third (subtractive) input of the counter 12 or 13. The contents of the counter 12 or 13 will decrease by one. At the end of the experiment (viewing the table), the subject crosses out the sensor 14 crossed out lines (last line), the timer 15 indicates the time spent viewing the table, and the contents of counters 12 and 13 correspond to the number of correctly and incorrectly crossed out characters. Switch 5 is used to turn off the source 4 light, if necessary,

The use of the proposed device in vocational guidance and professional selection rooms allows one to more accurately determine the psycho-physiological qualities of the subjects and give more accurate recommendations on the choice of profession, which will lead to lower training costs (associated with retraining), higher productivity and more rational use of human resources.

Formula of the invention The device for carrying out proof-reading samples, containing a timer, a correction table with conductive signs electrically combined into two groups, and sensors of scanned lines connected in series with the first input of a timer, two counters, a memory block, the first group shapers, two combining blocks, the input of each cell of the memory block is median with a corresponding conductive sign, and the output is at the input of the corresponding cell of the shaper block whose outputs corresponding to one group of current signs is connected to the outputs of the first combination unit, and the outputs of the cells of the driver unit corresponding to another group of current signs are connected to the inputs of the second combination unit, the output of each combination unit is connected to the input of the corresponding counter, the sources of the lighting of the current characters, the first inputs which are connected to the point of zero potential, and the second - to the outputs of the corresponding cells of the memory unit, the light indicator of the correction table, connected to the output of the timer EIW reset button connected to

the second. the inputs of the memory unit, the timer and the counters, a button connected to the third input of the timer, an electrical probe connected to the zero potential bus, characterized in that, in order to increase the reliability of the research results by making it possible to correct erroneous punctures, the second group of shapers, the third and fourth combining blocks and the correction button are entered, with the inputs of each cell of the second shaper block connected in parallel to the inputs

0

cells of the first block of formers, and the outputs of the cells of which correspond to the first group of conductive signs are connected to the inputs of the third combination unit, the outputs of the cells of which correspond to the second group of conductive signs are connected to the inputs of the fourth combination block, the outputs of the third and fourth blocks of the combination are connected to the third input of the corresponding counter, the correction button is connected to the zero potential bus and to the third input of the memory block.

Claims (1)

Claim A device for conducting proof tests, containing a timer, a correction table with conductive signs electrically combined in two groups, and scanned line sensors, connected in series with the first input of the timer, two counters, a memory unit, the first group of formers, two combining units, an input each cell of the memory block is connected to the corresponding conductive sign, and the output is connected to the input of the corresponding cell of the block of formers, the outputs of which correspond to one group of the current lead signs, connected to the outputs of the first combining unit, and the outputs of the cells of the shaper block corresponding to another group of conductive signs, are connected to the inputs of the second combining unit, the output of each combining unit is connected to the input of the corresponding counter, the illumination sources of the conductive signs, the first inputs of which are connected zero potential point, and the second - with the outputs of the corresponding cells of the memory unit, the indicator light of the correction table connected to the output of the timer, reset button, connect ennaya to the second. inputs of the memory block, timer and counters, button connected. to the third input of the timer, zelkt-. a probe connected to a bus of zero potential, characterized in that, in order to increase the reliability of the research results by providing the possibility of correcting erroneous strikethroughs, a second group of formers, a third and fourth combining unit and a correction button are introduced into it, and the inputs of each cell of the second formers unit connected parallel inputs ¹⁰ cells pervogo.bloka formers, and the outputs of which cells corresponding to the first group of conductive marks, are connected to the inputs of the third block Ob of the connections, which outputs the cell corresponding to the second group of conductive marks, connected with the fourth combiner inputs, the outputs of the third and fourth combining units 10 are connected to the third input of the corresponding counter correction button is connected to zero potential bus and the third input of the storage unit.