SU849277A1 - Pupil examining device - Google Patents

Description

The invention relates to computer technology, and in particular to technical means of monitoring students' knowledge, and can be used in any form of individual and group lessons.

Devices are known for monitoring the trainees Nij knowledge ^5, in which encoding is carried out by means of tickets responses with holes at positions corresponding to the best otvetamG · /!

»However, such devices have a complex circuit and aa high cost due to the fact that the input of responses and coding are made in separate blocks. The closest in technical essence to the proposed an apparatus in which the input responses and coding functions are combined, whereby it greatly simplified diagram umenshi- _χ were cost and dimensions.

In this device, coding is carried out by cutting out on the ticket fields a section corresponding to the correct answer. Tickets are placed in cassettes with contactors (response input units) [2].

The device has the following disadvantages;

in the 'control' mode, you can correctly respond by turning on all the contactors in the cartridge;

if the response circuit is broken, the correct answer is perceived as incorrect;

in the 'self-control of knowledge' mode, the device consumes significant power, since the indicators are lit in all questions to which the correct answers are given.

This does not allow to carry out the device in a portable form with small battery power.

In addition, the presence of cassettes with response input blocks limits the amount of training information, complicates the device and creates inconvenience when working in all modes.

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

This object is achieved heme that device containing indicator responses, connected via one response control switch with a single output power supply, connected through another revised ₅ breakers control responses to the indicator responses result, two groups of answers input switches, a key and an OR gate, introduced nizksyay frequency generator coupled to the input key, detecting the responses th through an OR gate connected with the result indicator responses through _(switch input responses of one group - the other output of the power supply, via a series connection perek- 15 lyuchateli input responses other groups and key - with another power supply output.

In FIG. 1 schematically shows the proposed device; in FIG. 2 groups of answer input switches. 20

The device contains contacts 1, intended for entering correct and incorrect answers, contactors 2, contacts 3 and 4 of correct and incorrect answers, encoding card 5, indicators 6 of answers, indicator ^ 5 indicator 7 of the result of answers, element OR 8, key 9, interrupting the power supply, supplying correct answers, low-frequency generator 10, power supply 11, response control switches 12 and 13. Contacts 1 together with contacts 3 form the switches for entering answers of one group, and with contacts 4 - switches for entering answers of another group (positions are not shown in the drawing).

The device operates as follows.

In the control mode, contacts 1 are in the upper position, contactors

2. shifted to the starting position. Between 40 contacts 1 and contacts 3 and 4, an encoding card 5 (ticket with questions) is installed.

The student alternately answers the 1st, 2nd, etc. questions (closes by means of ⁴⁵ contactors 2 those answers in questions that he considers to be true). Through the holes in the encoding card 5, one of the contacts 3 or 4 (depending on the answer) closes to contacts 1. ⁵⁰

If the answer is correct, contacts 1 are closed to contacts 3, if not, to contacts 4. After answering all the questions, the student turns on switch 13. If all the answers were correct, then block 11 is connected to indie-55 kagor 7 via key 9 (which opens periodically and closes from the signals coming from the 'generator 10), contacts 1 (correct answers) and the element OR 8. Indicator 7 is lit with a flashing light. If one of the answers is incorrect, from block 11 directly to the indicator 7 through contacts 1 (incorrect answers) and the OR element 8, a constant voltage is supplied, the indicator 7 is lit with a constant light. The place of errors (questions in which errors were made) are controlled by the glow of indicators 6 with the button of switch 12 pressed.

In the self-control mode *, the encoding hack 5 is set, switch 13 is turned on. The student answers questions in the same way as in the control mode *.

The result is monitored by indicator 7.

If indicator 7 lights up continuously, the student turns off the last answer entered and answers the same question again and so on until the correct answer is given. After the correct answer to all questions, the student, according to the numbering on the next ticket, installs the corresponding coding card 5 and answers the 1st, 2nd, and so on. questions.

The proposed device can operate in the mode of 'self-control' and 'control * of knowledge, while the power consumption of the indicators is reduced, which allows you to create a portable countermeasuring device with a small-sized power source.

Claims (2)

1. Author's certificate СХХЗР N 301730, cl. G 09 B 7 / OO, 1972. 2. USSR author's certificate number ZO2740, cl. Q O9 B 7 / OO, 1972 (prototype). question 5 question