SU982061A1 - Pupil examining device - Google Patents

Description

(54) KNOWLEDGE CONTROL DEVICE The invention relates to technical means of training and control and can be used for individual and group control of students 'knowledge in various subjects and courses using an automatic device for group control of students' knowledge, allowing to monitor in real time. for their answers, designed from various signals (numbers, letters, characters, etc.) of an arbitrary outline while ensuring their visual recognition. A device for individual and group control of knowledge by the method of selective response is known, which contains blocks for inputting the responses of students, distributors and display circuits. The student, having received a question, enters into the device either one of several answers offered to him or an answer. No Next, the device compares the question and answer codes, resulting in the assessment of knowledge til. The disadvantage of this device is the impossibility of solving the task due to the fact that, when the TRAINED teacher does not have the ability to follow the course of the decision, the correct answer can be given to a student with a certain degree of probability. .. A device is known that operates according to the principle of a constructed response and contains blocks for entering responses of students, display circuits, coding blocks, comparison blocks, etc. The answer is typed and entered by the learner using a standard keyboard, such as a typewriter. Further, the trainee’s response is compared by element or cumulatively with the reference answer typed on the teacher 2 keyboard. The disadvantages of this device are the poor performance of the task, i.e. the inability to control the course of the response in time, as well as the relatively small number of characters that the keyboard is equipped with. The closest to the invention is a device comprising blocks for inputting trainee responses in the form of a matrix set of buttons, indication circuit, reset circuit, coding blocks for trainee responses, input block

teacher question, teacher coding block, synchronizer, distributor, crawler block. Neni, decisive blocks, and block documentary registration. The device carries out group control of the knowledge using the method of constructing a response from characters, as well as documenting, recording the correctness or validity of the responses of the students 33.

The disadvantages of such a device are a poor solution of the problem due to the inability to control (register) the students' answers, and you can only compare them with the reference ones, a limited number of symbols with which the trainee can construct his answer, since the number of buttons, each of which corresponds to one or several characters, limited, lack of temporary control of responses of students, which also reduces the reliability of the assessment of knowledge.

The purpose of the invention. - expanding the didactic capabilities of the device with increasing reliability of knowledge control.

The goal is achieved by the fact that the device containing the matrix switches, the display units and the sequentially connected recording unit, the synchronization unit and the pulse distributor are entered into a block of OR elements, the output of which is connected to the input of the registration unit, and the inputs are connected to the outputs of the corresponding metric switches, and chains of series-connected pulse formers and pulse distributors, the outputs of which are connected to the inputs of the corresponding matrix switches, the inputs of pulse formers chains are connected to the first output of the pulse distributor and the outputs - to the inputs of the respective display units, the second inputs of the pulse chains valves connected to the second output pulse distributor.

Trainee responses constructed from all sorts of symbols are recorded in real time on a storage medium. In this case, the character outline can be arbitrary.

The device is to be performed in the manner described in order to eliminate the mutual influence of the input blocks of the student trays when they are alternately connected to the writing nodes of the documentary registration unit. Execution of the block of documentary registration as a group of writing nodes located in the form of a two-dimensional matrix, and the connection of each writing node with the corresponding discrete switching elements of input blocks

The trainees' response is necessary for registering characters (both standard and non-standard) on the information carrier in the order and in the rate at which they are entered by the students. The characters on the matrix of discrete switching elements of the trainees input input block and the corresponding display on the information carrier using the matrix of writing nodes should be only visually recognizable, and not necessarily standard.

Formation by the device of impulses of line input and execution of a two-stage impulse distributor with two outputs, when one of the stages has an output level equal to the number of rows of the two-dimensional matrix of the input response block of students, and the writing nodes of the documentary registration block form one row with the number of elements equal to the number of discrete switching elements in the row of the two-dimensional matrix of the trainees response input block, necessary to simplify the construction of the documentary registration block by introducing additional radioelectronic elements. This, in turn, leads to a reduction in the cost of the device while maintaining its functionality.

Formation of impulses of the beginning of input by the device is necessary so that the registration on the information carrier of each input character begins from its first line, regardless of the moment of the beginning of its input by the trainee.

The combination of these distinctive features is sufficient to solve the task, namely; registering in real time the responses of students trained from characters alternately dialed on the matrix of discrete switching elements of the block for inputting the answers of students.

The drawing shows a functional diagram of the proposed device.

The device contains a drive 1, a reducer 2, a synchronization unit 3, a pulse distributor 4, a first step 5 of a distributor 4, a second step 6 of a distributor 4, a block 7 for inputting responses of students, a matrix switch 8 consisting of discrete switching elements, a distributor 9 pulses for line-by-line input shapers 10 pulses (start of input), input buttons 11, display units (input) consisting of control and indicator unit 12 and OR unit 14, registration unit 15, carriage 16, reciprocating mechanism 17, roller 18 , mechanism 19 of step rotation, information carrier 20, registration strip 21, registration zone 22, registration lines 23, output bus 24 of the input start circuit, connection bus 25 of this unit, matrix row connection bus 26, switched off element 27, switched on element 28. Reducer 2, drive 1, node 15, carriage 16, mechanisms 17 and 19 are combined into a registration unit.

The actuator 1 is connected via a gearbox 2 to the block 3, the mechanism 17 for reciprocating the carriage 16 and the mechanism 19 for the stepped rotation of the roller. Unit 3, made, for example, in the form of a synchrodisk with a photoelectric driver, generates pulses arriving at the distributor 4, made, for example, in the form of a counter with a decoder. The outputs of the first stage 5 (lower bits) of the distributor 4 are connected to the information inputs of the line-in input circuit, the valves 9 which are a group of controlled gates. The outputs of the second stage 6 (high bits) of the distributor 4 are connected via input start circuits of drivers 10, equipped with input start buttons 11, to control inputs of line-by-line circuits, input of corresponding distribution valves 9. The outputs of the latter are connected to inputs of a matrix of discrete switching elements of switches 8 made in the form of buttons with independent fixation. One of the outputs of the row-by-line input of the distributor 9 through the node 12 is connected to the indicator 13. The outputs of the switches 8 through the block 14, fulfilled, for example, in the form of a diode scheme OR, are connected to the registration node 15, made, for example, as a group of controlled writing nodes. As writing units, for example, ball rods with an electromagnetic clamping device to the information carrier 20 can be used. The number of writing nodes of node 15 is equal to the number of buttons in the row of the switch matrix

8 (i.e. 4 according to the drawing). Green 15 is fixed on the carriage 16, which reciprocates. Writing nodes move over media 20, for example

paper tape, which, in turn, is pulled in steps in the direction of the arrow during the return stroke of the carriage 16. The tape moves across the direction of movement of the carriage 16 by means of a roller 18 connected to mechanism 19. The information carrier 20 is divided into recording strips 21, on each of which recorded information coming in

from the corresponding block 7 input, answers. Each registration strip 21 is divided into registration zones 22, in each of which one symbol is registered. Zone 22 registration

5 contains 23 registrations, in each of which, using the writing nodes 15 of the block, a part (one line) of the input character is fixed.

The matrix of buttons with independent latching switch 8 posted

on the remote control unit 7 input answers, where is the same button 11 input and indicator 13, performed, for example on the led. The symbol intended for input is dialed on the matrix of the buttons of the switch 8 by alternately pressing the latter, Visually pressed button 28 differs from non-pressed 27, for example, backlight.

The device works as follows.

After telling the students about the next question, the teacher includes

5, the device and the registration unit 15 starts scanning the information carrier 20 across the registration strips 21. Since the mechanism 17 is rigidly connected through the gearbox 2 to the block 3,

l each position of the writing nodes of node 15 in lines 23 corresponds to a well-defined number of pulses received by this time to the distributor 4. The number of output tires 26 of the first stage 5 of the distributor 4

 equal to the number of rows of the matrix of commuting elements of the switch 8 plvos the number of lines of the gap between the registration bands 21, and the number of outputs of the second stage 6 is equal to the number of blocks

0 7 input answers. When the distributor 4 is connected with the bus 25 of the next block 7 for entering responses, the valves of its interrogation scheme of the distributors 9 are open, and

5 using the bus 26, the rows of push-button contacts are alternately connected. The output signals from the switch 8 through the block 14 arrive at the node 15 of the registration. Since the clocks of switches 8 that are closed to 0 correspond to the writing node pressed to the information carrier 20, and open clocks to an incomplete saty, when node 15 passes through the corresponding zones 22

5 registrations in each of its line 23 points are fixed in accordance with the location of the pressed 28 and non-measured 27 buttons of the switch 8.

Similarly, the registration of characters entered from other

0 blocks 7 of input answers, as the writing nodes pass over the corresponding registrant zones.

In order for the registration of characters in the corresponding zone to begin after the student clicks the button

li and the initial lines of the input character were not lost, the signal on the output bus 24 of the input start circuit of the drivers 10 is formed only if button 11 is pressed before the selection signal arrives on the bus 25, which comes from the second stage of the distributor 4. If 11 is pressed during the next selection signal of this input block 7, the enabling signal via bus 24 to the control input of the distributor 9 is received only at the next connection signal of this input block 7, i.e. on the next direct drive carriage 16.

Simultaneously with the beginning of the input of the symbol using the distributor 9, the signal from the output of the circuit of the beginning of the input of the imaging device 10 is supplied to the node 12, made for example in the form of a pulse expander. Node 12 provides a short-term (up to 1 s) turn-on of indicator 13, which signals the learner about the end of the registration of the character INPUTED by it.

Thus, the proposed device expands the functionality and increases the reliability of the knowledge control in that it provides automatic rpynro control of the students' knowledge and allows you to monitor in real time the course of the responses constructed from various arbitrary characters.

In view of the documented responses of students, it is possible to further analyze the information received in order to make additions and changes to the educational process.

The proposed device, equipped with a group of sensors placed on special simulators, allows

to carry out effective, monitoring of training for various work operations, the device is easier to use, which reduces the additional psychological burden on the examinee.

Claims (3)

1. Accepted by Japan No. 54-9927, cl. G 09 In 7/07, published in 1979.. . 2. Authors testimony of the USSR № 183499, cl. G 09 B 7/07, 1966. 3. Pupil knowledge control system. - Radio, 1978, 1, p.4549 (prototype). . W R I r  Jht , 44.1x1 t IS