SU1444860A1 - Apparatus for examining traineesъ knowledge - Google Patents

Abstract

The invention relates to the technical means of group control of knowledge in various disciplines. The purpose of the invention is to simplify the device by reducing the number of communication lines with a decrease in the labor intensity of electrical installation. The goal is achieved in that the known device containing the teacher 1 and the student 2 consoles, the switch 17 of the consoles, the indicators controlling the answers 10 and the correctness of the answers 15, the coding switches 19 and the answers 20, the power block 16, the generator 3, the question switch 18, the block 4 matching, limiting element 5, detector 6, key 7, amplifiers 8 direct current, keys 9, and the console 2 of the student additionally contains selective amplifiers 11, detectors 12, amplifiers 13 direct current and keys 14. 1 sludge. G V P (L S 4 4 00 sp

Description

one

The invention relates to automation, in particular to knowledge control devices, and can be used for programmed training in various subjects.

The purpose of the invention is to simplify the device by reducing the number of communication lines, reducing the labor intensity of electrical installation work when equipping classrooms with knowledge control devices and ensuring the mobility of control devices.

The drawing shows the structure of the proposed device.

The device contains a remote control 1 teacher and rolls 2 trainees The console 1 includes a generator 3 (five sound frequencies), a matching unit 4, a limiting element 5 (resistor), a detector 6, a key 7 (electronic), a dc amplifiers 8, keys 9 (thyristor), response control indicators 10.

The remote control 2 contains selective amplifiers 11, detectors 12, amplifiers 13 direct current, switches 14, indicators 15 of the correct answers. The remote control 1 contains a power supply unit 16, a switchboard of 17 remote controls, a switch of 18 questions. The remote control 2 contains switches for encoding answers 19 and entering answers 20.

The pa6rjfaeT device is as follows.

In advance, in the consoles 2, 5 tickets are installed and the switches 19 encode the correct answers. Each ticket contains a question and 5 answers, one of which is correct. The trainees set the correct suggested answers.

To check the accuracy of the response, the teacher by one of the switches of the switch 17 connects the remote control 1 to the tested remote control 2 of the student and alternately through the switch 18 sends him five signals of different frequencies. With the correct answers, the group of switches 19 and 20 are turned on in series and through them sound signals are sent to the inputs of the selective amplifiers 11. Of the amplified signals, the detectors 12 select a constant voltage, which is amplified by the amplifiers 13 and acts on clumps 14, including indicators 15. At the moments of switching on indicators 1-5

0

five

0

it develops T / ls signals on element 5, acting on detector 6. Of these signals, detector 6 isolates a constant voltage that acts on key 7. When opening key 7 through it, the inputs of amplifiers 8 receive a constant voltage amplified only by the amplifier B, to which the supply voltage is supplied from the switch 18. The increased voltage acts on the switch 9, which turns on the indicator 10.

Thus, when checking answers on consoles 1 and 2, indicators 10 and 15 (only correct answers) are automatically illuminated. If the test response is incorrect, there is no signal at the output of its selective amplifier 11, the indicator 15 is not illuminated, the pulse signal does not appear in the console 1 and the indicator 10 is also not illuminated.

Claims (1)

25 claims A device for monitoring students' knowledge, containing student consoles, each of which contains response correctness indicators, response input switches and response coding switches, the inputs of which are connected to the outputs of the corresponding response input switches, a remote control switch, a power supply unit and response control indicators, characterized in that In order to simplify the device by reducing the number of communication lines, the device includes a detector. five 0 five one input of which is connected to the first output of the power supply unit, a restrictive element, one view of which is connected to the first output of the power supply unit, and another output to another input of the detector and outputs of the response coding switches, a key whose input is connected to the output of the detector, matching unit, outputs which are connected to the corresponding inputs of the switch panel, DC amplifiers, one inputs of which are connected to the output of the key, a group of keys whose inputs are connected to the outputs of the corresponding amplifiers of the constant Current, and the outputs - with the inputs of the corresponding control indicators of answers, the generator and the switch of questions, the input of which is connected to the second 144А860 To the output of the power supply unit, the inputs are connected to the first outputs of the corresponding r-groups of inputs of the switch of the interrogating detectors, and the keys, one of which are connected to the corresponding outputs of the gene-inputs of which are connected to the first amplifiers, the outputs of the first group of the questions switch- to the corresponding constant current, and the first outputs - to the neutral inputs of the matching unit, and to one of the inputs of the corresponding indicators of the second group of outputs of the switches, the correctness of the answers, the other questions - to the other inputs There are sampling amplifiers, corresponding dc amps, dc-amplifiers, key currents, and the learner's console contains answers and indicators of correct answers; there are selective amplifiers, one connected to the second output of the block whose inputs are connected to the corresponding ones, and the second outputs selective switch output of consoles, amplifiers, permanent amplifiers, detectors, the inputs of which are connected to 15 currents, keys and indicators of the right to the first outputs of the corresponding and the second outputs of the detectors - with selective Amplifiers, amplifiers of the corresponding DC switch, one inputs of which are the answers.