SU1226512A1 - Device for switching trainee panels - Google Patents

Abstract

The invention relates to a teaching technique and can be used in accounting information input / output devices. The purpose of the invention is to expand the didactic capabilities of the device. The invention is based on the exclusion of students' adaptation to the presented information by controlling the duration of selectable switching channels by introducing into the device a series-connected frequency divider and a control unit, as well as series-connected elements OR OR. I zp f-ly, 2il. ND BE SP s;)

Description

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The invention relates to automation and computing, in particular, devices for selecting channels when transmitting educational information to students, and S information input / output devices and B training devices can be used.

The purpose of the invention is to disseminate the didactic capabilities of the device by eliminating the adaptation of students, by controlling the duration of the selected switching channels.

Pa Fig, 1 shows a block diagram of the device; 2, time diagrams of his work.

The device for switching the learners' consoles contains 1ltivivatpop 1, element I 2, element GSHI 3, shifting register 4, trigger 5, shaper b of pulses (initial state setting) consisting of generator 7, element I-fflll 8 and element I 9, as well as frequency divider 10, control unit 11, consisting of element P 12, element ШШ 13, тнггера 14 and element ШШ 15,

The device works as follows.

In the initial state, at the input of the register 4 and the TP input of the divider 10 there are signals of logic 1. On the leading edge of the positive pulse of the multivibrator 1, the divider 10 records information from the device input, and on the falling edge of the same pulse, a percapal is selected. After the nerve channel has been selected by the signal of logical O from the inverse of the trigger code 5, through the element 15, the divider -10 is converted to counting, and element 2 is blocked, prohibiting the passage of 4 pulses to the register 4 from the r-multivibrator 1,

The selection of subsequent channels for switching 1m is performed alternately by the pulse itself1 of the counter overflow in divider 10, the occurrence of which is determined by the previously recorded information in it, which determines the duration of the switching. On the trailing edge of the overflow pulse, trigger 14 is set, setting the divider 10 to the input information mode. The next impulse from the privilege on the improbable front writes this information into the divider 10 and through the elements 12 and 13 sets the trigger 14 to the zero state than del212

The body 10 is switched to the counting mode. Further, the operation of the circuit device is similar to that described.

Thus, the proposed device allows controlling the duration of switching of various channels, which eliminates the adadition of trainees when performing training exercises on training psychophysiological qualities and HOBjimaeT reliability of the estimates obtained and the quality of training.

Claims (1)

Invention Formula 1, A device for switching learning consoles, containing a multivibrator, a shift register, whose outputs are the corresponding outputs 1-1 of the device, and the first input and output connect respectively to the output and the first trigger input, the second input is connected to the output of the pulse former, connected to the second input of the shift register, the second output of which is connected to the first input of the driver of nmnus, which is so that, in order to expand the didactic capabilities of the device, later Well-connected frequency divider and control unit, the output of which is connected to the first input of the frequency divider, and a series of elements Hn element IinH output: expensively connected to the third, the shift register input and the second input of the pulse former, and the second input to the splitter output frequencies, whose 1H1 information inputs are the corresponding inputs of the device, and the second input is connected to the output of the multivibrator, connected to the second input of the control unit and the first input of the And element, the second input of which is Connected to the trigger output, connected to the third input of the control unit, the fourth input of which is connected to the output of the pulse former, 2, the apparatus according to claim 1, characterized in that in it the control unit contains the AND element in series, the first OR element, the trigger and the second OR element, the output and second input of which are respectively:: one and the third input of the block, second entrance 3I 2265 I 24 the trigger is the first input of the block the second input of the block, the second ka the first input of the element AND the input of the first element OR is connected with trigger output, and the second input a quarter block inlet. a quarter block inlet. 1 channel LG1JPJ1J1J1JTЛJ UTЛJЛJ Editor O. Bugir Compiler A, Charles Tehred V. Kadar Proof-reader S. Cherni Order 2138 / 5G Circulation 455 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhhorod, Projecto st., 4