SU1120393A1 - Teaching-aid information input device - Google Patents

Abstract

1. DEVICE FOR INPUT: EDUCATIONAL INFORMATION, containing consistently included response input block, encoder and educational information display unit, characterized in that, in order to expand the didactic capabilities of the device, a sequentially included code converter and a block of I elements whose output is connected are introduced into it with the second input, the home of the encoder, and the input converter of the codes is connected to the second output of the response input unit. (L /

Description

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2, The device according to claim.

It is necessary that in it the response input block contains dialing elements connected directly and via keys to the corresponding power buses, and the key inputs are connected to the one-shot output.

The invention relates to technical means of teaching and controlling knowledge of students and can be used in the development of training devices and systems, as well as an input device in various information devices and systems. Manipulatory input devices are known, for example, with a keyboard with a constant key value, like a typewriter or a display. The disadvantage of such devices is a significant increase in the input response time for leads that have not undergone lengthy training in working with such devices. Input devices with a variable key value are known, in which the number of keys usually does not exceed 10–12 instead of 75–90 in devices with a constant key value. ; With each new question, the keys are assigned a new value, for example, by projecting from an optical carrier LI, 2j, or by changing patterns with the values of the keys superimposed on the keyboard. Yes I. Such input devices are convenient for individual learning machines, but during the transition to training systems with a large number of workplaces, the mechanical change of key values is difficult. The closest to the invention is a device in which the answer of the student is entered element by element with the help of tracing characters on the matrixes of discrete switching elements on the console of the input of answers. In addition to the response input console, this device contains indication and registration blocks, as well as a distribution box and isolation blocks 4. A disadvantage of the known device is the lack of standardization of the entered response elements, so that they can be classified, for example, into correct and erroneous only by a teacher, and not using automatic comparing devices, as is the case, for example, in device 2. The purpose of the invention is not to expand the didactic capabilities of the device. The goal is achieved by the fact that a device containing a code converter and a block of I-elements, the output of which is connected to the second input of the encoder, is inserted into the device containing the sequentially connected response input block, and the input of the code converter is connected to the second output block input responses. The response input block contains dialing elements connected directly and via keys to the corresponding power buses, and the key inputs are connected to the one-shot output. The f-ia of Fig. 1 shows the structure of the proposed device for entering training information / Fig, 2 is a functional block diagram of the input of answers, FIG. 3 is an electrical circuit of the block for inputting answers, FIG. 4 is an electrical diagram of a code converter; FIG. 3 is an electrical block diagram of the AND elements, serving for the character set for the three first letters of the alphabet. The complete table of attribute sets for Russian characters, numbers and characters from the elements formed by the code converter is presented in Table. l); Fig. 6 illustrates the possible implementation of the encoder circuitry for the KOI-7 7-bit code presented in Table 2.

Table 1 A device for inputting training nn formations (Fig. 1) contains a response input block 1 comprising a set of input cells and memory combined into a matrix 2. Input and memory slots are connected via buses 3 to converter 4 inputs, the outputs of which are connected to inputs of block 5 of elements I. The outputs of block 5 are connected to encoder 6, which converts the set of features into the code of signs. Outputs 7 of encoder 6 are external to this device and can be connected, for example, with a comparison system of the training system. Outputs

Table 2 S of the encoder 6 is connected to the input of the block 9 for displaying educational information formed on the basis of a display located together with block 1 at the student’s workplace. Response input block 1 contains the input and memory 2 cells combined into the matrix. Block 1 can be made (Fig. 2) in the form of keys 10, with the help of which elements are introduced, for example X, -X- ,. characters of the input alphabet. Each key contains elements of the first set of semiconductors, which memorize excited cells, for example, before the complete generation of character codes in the encoder 6 and the transfer of these codes to the display of block 9 and to external circuits. The most convenient and reliable is a block made on the sensor elements (Fig. 3). Each cell 2 contains a key 10, made in the form of contacts of a touch sensor, and a set element 11 consisting of interconnected transistor 12 and a trinistor 13, the glow lamp 14 can be used as a load. The output of cell 2 is the common connection point between the switches of transistor 12, the thyristor 13 and the incandescent bulb 14, the second electrode of which is connected to one of the contacts of the sensor, is combined with the analog electrodes and contacts of the other cells and is connected to the power source via switch 15 that is connected with the output of the one-shot 16. Converter 4 (figure 4) contains the inputs by the number of cells 2, which through logic elements And 17, logic elements OR 18 or directly connected to the outputs of the signs so as to highlight the har kternye features characters with minimal ogran1gcheniem their writing. Such conditions are satisfied, for example, by the electrical circuit shown in Fig. 4, which corresponds to the matching functions corresponding to the input signals. Transducer outputs; 4 are connected to the same inputs of block 5, which contains logical elements AND 19, which are used to form frequently encountered signs, logical elements AND 20 to form characters, the inputs of which directly or through logical elements AND 19 and inverters 21 are connected with the inputs of block 5 in such a way that a set of features is implemented for the most frequently occurring characters of the input answer language in accordance with the input signals and Table. 6. If necessary, sets of signs of other characters, for example, the Latin alphabet, can be similarly formed. Outputs A, B, C, etc. block 5 is connected to the same inputs of the encoder 6, which can be made in the form of a set of diode assemblies (6) that implement the function: A 1100001, B 110001 O, 8 1110111, G 1100111, D 1100100, etc. (Table 2) Outputs 7 and 8 of the encoder 6 are connected to external devices via logic gates And 22 and to a display, which can be standard or specialized, made, for example, on the base of a VP-100 TV and operational memory, control device and. character generator based on the ROM. The device for entering training information works as follows. The student enters his answer by element-wise path. Draws, for example, with a finger, images of letters, numbers, etc. in block 1. In this case, certain cells 2 of the input-and-memory are excited. The signals from the excitation of the cells 2 are sent to the converter 4. When entering a character, certain outputs of the converter 4 are excited, corresponding to this symbol, i.e. In converter 4, a certain set of features is generated using logic elements AND I7 AND OR 18, which is fed to block 5, where using logic elements 19 and 20 and inverters 21, it is determined which character enters, learning. In this case, one of the outputs of block 5 is excited, the signal from which is fed to the encoder 6, which generates a code corresponding to the signal. This exit code 8 arrives at the display of block 9, on the screen of which it induces. If the character is entered correctly, a signal is sent from the keys 15 of block 1, which is fed to the input of the encoder 6, the corresponding logic elements 22 are opened and, via output 7, the signal about the entered response element is transmitted, for example, to the comparison device of the training system. In case of an incorrect input, a reset signal is inputted using keys 15, which de-energizes the power supply circuit of cells 2 of block I. The supply of commands to transfer information to external circuits and reset a previously inserted element can be performed automatically, for example, by commands from the single-shot 16, which specified intervals sequentially the signal at the input of the encoder 6, and then the reset signal

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the previous record on block 1, after which block 1 is ready to perceive the next character, which is written as follows. When the finger touches the keys O, a current appears in any of the cells 2 in the base circuit of transistor 12, which causes a current pulse through transistor 2. In this case, the triistor 13 is triggered, the indicator light (cells) 14 is lit and gives a signal through one of the outputs of unit 1 .

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The operation of the converter 4 and block 5, as well as the encoder 7, is fully characterized by the functions described in the description, which are implemented by standard logic elements

Compared with the known, the proposed device has greater ease of entering information, the accuracy of which input is controlled by the display and can be transferred to external devices for further processing.

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Claims (2)

1. DEVICE FOR INPUT EDUCATIONAL INFORMATION, containing sequentially included response input unit, an encoder and a training information display unit, characterized in that, in order to expand the didactic capabilities of the device, sequentially connected code converter and an element block And, the output of which is connected to the second input of the encoder, and the input of the code converter is connected to the second output of the response input unit. with SS V SU,., 1120393 • 2. The device according to claim 1, wherein the response input unit comprises dialing elements connected directly via keys and with corresponding power buses, and the key inputs are connected to the output of a one-shot.