RU1508825C - Data input device - Google Patents

Abstract

The invention relates to the field of automation and computer engineering and is intended for input into a computer; -: data sources coming from a sensor; The aim of the invention is to increase the speed of the device. The device contains an N-HE element 1,,, counter 2, a memory unit 3, a decoder 4, an I 5 element, a switch 6, triggers 7 and 8. An array of information from the sensor , completely. is accumulated in the memory unit 3, A service word is generated in the device, which contains the information about the length of this array. If input is entered: EH, the service word is transmitted first. word, and then the words of the array from the sensor. Thus, using the device in the computer saves time on the analysis of the ready signal and determining the end of the data array (which reduces the input time. 1 nl.

Description

The invention relates to the field of automation and computer engineering and is intended for inputting data arrays coming from a sensor into a computer.

The aim of the invention is to increase the speed of the device | The drawing shows the function; the device is a block diagram

The device contains an AND-NOT element 1 counter 2, a memory unit 3, a decoder 4, an AND 5 element, a switch 6, triggers 7 and 8, inputs 9-12, outputs 13 and 14,

The device operates as follows

Before starting work, the device is set to its initial state. To do this, it installs with nuyeru urozen7 at the outputs of the counter (ca 2 and triggers 7 and 8. During operation of the device, the number in the counter 2 is changed according to the difference 0 / signals at its inputs A change in the STATE of the flip-flops 7 and 8 is carried out according to the 1 / O edge of the signals at their I-inputs. Information is written to the memory unit 3 during the time of the zero pulse level synchronization. Information is read at intervals when not Procedure synchronous signals r eatsyi, t.eo when recording is not performed

After the device is set to its initial state, an input pulse from mlssir is received from the information sensor at input 12, and information, accompanied by synchronization pulses, is sent to port 9,

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input 10. Each synchronization pulse records one word in the memory unit 3 at the address determined by the number in counter 2. On the trailing edge (difference 0/1) of each synchronization pulse,, after the recording of the next word, the number in counter 2 increases by

to read the second (in the order of receipt from the Sensor) array again, counter 0 will be set to zero, the next word of the array will be generated at output 13, the unit level will be set at the first (direct) output of decoder 4, and zero at the inverse. When typing in a computer the first word

The next fg array is prepared and the next pulse is prepared. The confirmation pulse of a cell in the memory side 3 for recording can hardly be detected through the AND element 5, will reset the trigger word. As soon as the counter-hero 8, and at the output 14 is established

ke 2 a number is formed, excellent zero. The state of counter 2 will remain from zero, at the inverse output of the decoder, with zero, since through the element

torus 4 is set to zero level 15 AND NOT 1 this impulse will not pass. Lower, and at its direct exit - ONE

After entering the last word of the array, the trailing edge of the array tracking pulse is formed, and in the counter-20 2, a number equal to the number of filled cells of the memory block 3 is recorded. The trailing edge of the array tracking pulse is set to. It will be set to its initial state and ready to accept next data array

Claims (1)

The claims A device for inputting information containing an AND element, the first input of which 25 is connected to the first output of the decoder, a counter, the addition input of which is the sync input of the device, and the outputs are connected to the first group of inputs to the switch. fall into 1 trigger 7 and trigger A device for inputting information containing an AND element, the first input of which 25 is connected to the first output of the decoder, a counter, the addition input of which is the sync input of the device, and the outputs are connected to the first group of inputs to the switch. 8, a single signal is generated at the control input of the switch 6 and a ready signal at the output 14. At the same time, the switch 6 passes to the output 13 a number formed into a count-30 memory block, the information inputs of the memory 2 and equal to the accumulated volume of which are information inputs of the device, with the exception of .6 s and the fact that, in order to increase the speed, they are introduced into it massass The computer, having detected the ready signal, reads the service word and then generates a pulse at the input 11 to activate the first and second triggers, the input confirmation element. This pulse is AND-NOT, the first input of which is connected to the first input of the AND-NOT 1 element, the second input of which is set with the second input of the And element and the installation input in O of the first trigger, the second input is connected to the second output of the decoder 4, since the number in the count is .40 of the decoder, and the output with the input of the chip 2 is different from zero The pulse of the counter subtraction, - the outputs of which the input is inverted and the unit signal. from the inverse output goes aa the output of the AND-NOT J element. „At the trailing edge of this pulse, connected to the address inputs of the descrambler and memory unit, the control input of which is connected to the input clock in counter 2 decreases by one, 45 device drops, and the outputs - with this, the address is set by the second group of inputs of the switch, the last word in memory block 3. whose outputs are informational. On the falling edge of the pulse, confirm the outputs of the device, and trigger 7 is reset, - the control input of switch 6 is set to zero, output 13 receives the last word fifty the input is connected to the output of the first flip-flop, the input of setting 1 of which is the input of the device information and connected to the input of setting 1 of the second flip-flop, the input of which is connected to О, with the output if it is AND, and the output is the readiness output devices. array Then the EPM reads the information words of the array in the order that is the reciprocal of their location from the sensor. Reading is done similarly. SCHITGAAN GK1 SL / RNSL a words, Lpsle AND NOT 1 this impulse will not pass. Set ROYS.to be set to its original state and ready to receive the next data array The claims twenty A device for inputting information containing an AND element, the first input of which 25 is connected to the first output of the decoder, a counter, the addition input of which is the sync input of the device, and the outputs are connected to the first group of inputs to the switch. 30 memory unit, the information inputs of which are information nor speed, introduced into it first and second triggers, AND element, whose first input is connected connected to the address inputs of the descrambler and the memory unit, the control input of which is connected to the synchronization input of the device, and the outputs to the second group of inputs of the switch, the outputs of which are the information outputs of the device, and the control the input is connected to the output of the first flip-flop, the input of setting 1 of which is the input of the device information and connected to the input of setting 1 of the second flip-flop, the input of which is connected to О, with the output if it is AND, and the output is the readiness output devices.