SU393766A1 - IA1t ^ ~, - -I ^ -Library_1 *! & A.M. Cl. G 09L 7 / 02UDK 371.67 (088.8) - Google Patents

Description

DEVICE FOR CONTROL OF KNOWLEDGE OF STUDENTS

one

The invention relates to the field of automation and computing and can be used in educational institutions in the study of complex schemes of automation, computing, pneumatic, hydraulic and other types of schemes.

Devices are known for controlling student knowledge.

However, such devices

they do not allow to o-limit the place of the error made in the response code and one (each) question;

they do not provide for an independent formulation of the answer, since they use the method of formulating the answer based on the choice of the exact answer "from several correct and incorrect answers stored in the memory of the device and issued to the controlled one;

they evaluate the answer to one Volros only by a two-point system, i.e. “there is an answer and“ there is no answer, and in order to assess knowledge of a two-point system, they need to ask a few questions;

do not allow to detect an error in the fire on the question related to the violation of the sequence of input of the code of the response code (for example, and answer to such questions as: to show the signal path to the control points in a given pattern or .i work, etc.)

The schemes of these devices are relatively complex.

The purpose of the invention is to develop a device circuit that, while being relatively simple, expands the functionality of the device and improves the control efficiency when studying the operation of circuits by automation, computing technology and workflow when the sequence of inputting response code bits is to be followed. In this case, the device must determine the number of bits in the multi-bit constructive answer code, in which the error is suppressed.

In the proposed device, this goal is achieved by the fact that "it contains an error localization unit in the response, one input of which is connected to the software switching unit, and the other to the input unit of the response code, and its output connected to the display unit by the response assessment unit. The error localization block in the response is made in the form of channels according to the number of bits of the response code, which contain successively connected cells: control, analysis of the correctness of the answer in this code bit. Moreover, the output of the control cell of each channel is connected to the input of the response analysis cell and to

the input of the control channel of the examining channel, and the output circuits I of the analysis circuit are connected to one of the inputs of the two-code AND circuit controlled by the second: input by a software switching unit whose output is connected to the trigger input of the generating cell.

FIG. 1 shows a block diagram of the device in FIG. 2 - a functional block diagram of the localization of errors in response.

The proposed device contains a block for entering the response code /, a software switching unit 2, a fault localization unit in response 3, a display unit 4, a response evaluation unit 5, control circuit cells 6, response correctness analysis circuit cells in this bit of response code 7, “And S and a pulse generator 9.

The device works as follows.

The student dials (inserts) sequentially, bit by bit, starting from the senior, the prepared response code in block I. Block 2 for one of the IZ programs specified by IB, generates single signals sequentially at the first, second, etc. output of the block , if the answer is correct, and with a violation of this sequence, if the answer is incorrect.

From the second output of the block I. At the input of each bit of the response COD, a pulse is sent to the block 3. The block analyzes each digit of the response code and sends a signal to blocks 4 and 5 that there is no error code in this bit (yes) .

The unit works as follows.

In the initial state of the cells 6 and 7, the unit is written in the first digit, in the following states - zero.

If there is no error in the response code, or, pressing the input button, the signal from the output of the block / goes oneV to the inputs of blocks 2 and 3. Cell 6 changes to the state "O, and its output appears" 1, which translates the cell 7 of the first (previous) bit into the “O” state, and the cell 5 and 7 of the subsequent bit — into the “1.

Upon transition of cell 7 from state "1 to state i" 0, at its Output it appears "1, simultaneously with which to the second input of cell 5 it receives" 1 from the output of block 2. The signal "1 from cell output 8 starts the generator of pulses 9, and the light in the block 4 lights up (the signal “There are no IB errors in this bit).

If this error is allowed.

THAT the signal “1 from block 2 does not arrive at the second input of cell 8.

At the output of cell 8 will be "Oh, the pulse generator 9 does not start, the light does not light up. This means that “There is an error. The signal “1 from the output of the cell 6 writes“ 1 to the cells 5 and 7 of the next order.

When you enter the next digit of the response code, the process is repeated. So, the cells of the cells 5 and 7, after entering the response code for this bit, go to the state O, re-entry is excluded.

This makes it possible to detect errors associated with the violation of the required input sequence of the response code by bits.

After entering all the bits of the response code, those bits of the generator 9 cells that were not made an error (are in generation mode) are running. In block 4, the bulbs in those bits where an error is made are not hot. In block 5, the set of signals from block 4 determines an estimate of the response according to a certain algorithm and outputs it in a predetermined form (for example, by indication) to the training unit.

Subject invention

Claims (2)

1. A device for monitoring students' knowledge, containing a block for entering the response code, the output of which is connected to a software switching unit, a display unit, and a response evaluation unit, characterized in that, in order to increase the efficiency of monitoring knowledge and expanding the functionality of the device, the error localization block in the response is entered into it, one input of which is connected to the software switching unit, and the other to the input code of the response code, and its output is connected to the display unit and the response evaluation unit . 2. The device according to claim 1, characterized in that, in order to determine the error in each the discharge of the response code, the error localization block in the response is made in the form of channels according to the number of bits of the response code, which contain successively connected control cells, analyzing the correctness of the answer in this the discharge of the response code, the AND circuit and the pulse generator, the output of the control cell of each channel connected to the input of the response analysis cell and to the input of the control cell of the subsequent channel. L,