SU1111148A1 - Information input device - Google Patents

Abstract

DEVICE FOR INPUT OF INFORMATION, containing the first, second and third switching elements, clock generator, first trigger, indicator, decoder and counter, the outputs of which are connected to the inputs of the decoder, characterized in that, in order to simplify the scheme of the device, it contains the first and second the OR elements, the three AND elements, the frequency divider, the second trigger and the key block, whose information inputs are connected to the counter outputs, and the outputs are device outputs, the decoder outputs are connected to the indicator inputs. , the output of the clock pulse generator is connected to the first input of the first element AND, the output of the first key is connected to the first input of the first element OR and to the installation input to the unit of the first trigger, the output of the second key is connected to the second input of the first OR element and to the installation input to zero of the first trigger the output of which is connected to the control input of the counter, the output of the third key is connected to the control input of the key unit, the output of the first OR element is connected to the counting input of the second trigger and the second input of the first element This And, the output of which is connected through a frequency divider to the first input of the second element And, and directly connected to the first input of the third element And, non-inverting and inverting the outputs of the second trigger are respectively connected to the second inputs of the second and third elements And whose outputs are connected to the corresponding the inputs of the second element OR, the output of the connected. with counter counting input. sc

Description

1 The invention relates to automation and computer technology and can be used as part of technical training tools during their development, as well as as an input device for information, as a portable console in various devices and systems, where the ease of handling is essential. entering a large number of character codes and characters. A device for inputting information into a training system is known (a system for use in training systems containing tens of workplaces, comprising an input panel made in the form of a sensor matrix, an input symbol generating unit, a feature set forming unit, an encoder connected to a display device ( with the display) and external information processing devices. Such a device allows entering any characters (letters, numbers, signs) on the sensor matrix and performs the functions of A virion with a replaceable value of the SI and L23 keys. / The disadvantage of this device is its complexity. The purpose of the invention is to simplify the device. This goal is achieved by the fact that the device for entering information, containing the first, second and third switching elements, the generator of clock pulses, the first trigger, the indicator, the decoder and the counter, the outputs of which are connected to the inputs of the decoder, the first and second elements of S1I, the three And elements, the frequency divider, the second trigger and the key block whose information inputs are connected are entered The outputs of the counter, and the outputs are outputs of the device, the outputs of the decoder are connected to the indicator inputs, the output of the clock generator is connected to the first input of the first AND element, the output of the first key is connected to the first input of the first OR element, the output of the second key is connected to the second input of the first OR element and to the input of setting the first trigger to zero, the output of which is connected to the control input of the counter, the output of the third key is connected to the control input of the block It, the output 1482 of the first element OR is connected to the counting input of the second trigger and to the second input of the first element AND, the output of which is connected through the frequency divider to the first input of the second element AND, and directly connected to the first input of the third element And, non-inverting and inverting the outputs of the second trigger, respectively connected to the second inputs of the second and third elements And, the outputs of which are connected to the corresponding inputs of the second element OR, the output connected to the counting input of the counter. FIG. 1 shows the scheme of the proposed device; in fig. 2 - diagram of the input block; in fig. 3 - polling pulse generator. The device contains a counter 1, an input block 2, a key block 3, a decoder 4, an indicator 5, counting 6 and control 7 inputs and output 8 of the counter 1, control input 9 of the key block 3, device outputs 10, clock generator 11, driver 12 interrogation pulses, keys 13-15 from first to third, the first trigger 16, the second 17 and the first 18 inputs of the first element SH, the first input 19 of the first element AND, the first element OR 20, the first element AND 21, the second trigger 22, frequency divider 23 , the second and third elements are AND 24 and 25, the second element is OR 26. The device operates as follows BrAZ. According to the signals from input block 2 (Fig. 1), counter 1 completes a sequence of character codes of the alphabet. This sequence of codes appears at the outputs 8 of counter 1, is fed to the decoder 4 and is displayed by indicator 5. As each new pulse arrives at the input 6 of counter 1, the symbol changes. When at the output of counter 1 there is a symbol code that needs to be entered, input 9 sends a signal to block 3, block 3 opens and the symbol code appears at the output 10 of the device. Block 2 input (Fig. 2) works as follows. The generator 11 of such pulses produces a continuous sequence of pulses, for example, with a frequency of 5 Hz. These pulses are fed to the input 19 of the mold 12 survey pulses. If the keys are 13 and 14 block 2 input. 31 TQ pulses from generator 11 are passed to output 6 of the generator of 12 interrogation pulses. The polarity of the signal at the output of the trigger 16 depends on which of the keys 13 or 14 is on. This signal from trigger 16 arrives at input 7 of counter 1 and reverses it. When using the keys 13 or 14. The code of the desired character sets the output of the counter 1, which is displayed on the indicator 5, the keys 13 (or 14) are turned off and the key 15 is turned on, which (Fig. 1) opens 9 in block 9, Keys 13-15 can be implemented, for example, in the form of touch sensors or in the form of micro buttons. Shaper 12 interrogation pulses (Fig. 3) works as follows. Signals from keys 13 or 14 are fed to inputs 17 or 18 of the element OR 20. From the output of this element, the signal goes to element 21 and opens this element to signals from the generator 11 arriving at the input 19. The signals from the output of the element OR 20 also arrive at the counting input of the trigger 22 and activate one of the elements 24 or 25, opening the path of the pulses from the generator. 11 to the output of the element OR 26 or through a divider 23, which can be executed, for example, in the form of a counter on triggers and divides the frequency of the generator pulses, for example, by 4. Such a generator of interrogation pulses with a single switch f keys 13 and 14 provides changing input characters at high speed, for example, 5 characters per second, with double switching on - at a speed, for example, 4 times less. Shaper 1 in the simplest case can be made in the form of a reversible counter, for example, on the K 155 ИЕ6 microcircuit. In this case, when arriving from the pulse input unit 2 from the clock pulse generator at input 6, depending on the polarity of the signal at input 7, the forward or reverse sequence of binary codes of numbers from O to 9 will be generated at the outputs of the microcircuit. The decoder 4, executed, for example, on the 514ID2 chip, converts the binary code into a seven-segment code and the indicator 5 will display the decimal number, the binary code of which is currently taking place at the output of the driver 1. When entering from the key The 1 (FIG. 2) signal of the input opens the keys of block 3 and a number code appears on the outputs 10 of the device. The present invention allows to simplify the known device by eliminating the display and the corresponding algorithm for generating characters of the input alphabet.

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Claims (1)

DEVICE FOR INFORMATION INPUT, containing the first, second and third switching elements, a clock, first trigger, indicator, decoder and counter, the outputs of which are connected to the inputs of the decoder, characterized in that, in order to simplify the circuit of the device, it contains the first and second OR elements, three AND elements, a frequency divider, a second trigger and a key block, the information inputs of which are connected to the counter outputs, and the outputs are device outputs, the decoder outputs are connected to the indicator inputs, output the clock generator is connected to the first input of the first AND element, the output of the first key is connected to the first input of the first OR element and to the installation input to the unit of the first trigger, the output of the second key is connected to the second input of the first OR element and to the installation input to zero of the first trigger, output which is connected to the control input of the counter, the output of the third key is connected to the control input of the key block, the output of the first OR element is connected to the counting input of the second trigger and to the second input of the second AND element, the output of which of keys through a frequency divider to vomu input of second AND and indirectly connected to the first building element and the third, non-inverting and inverting outputs of the flip-flop vtorog respectively connected to second inputs of the second and third AND gates, the outputs of which are connected to respective inputs us second. element OR output connected to the counting input of the counter. SUU „„ 1111148 о t