SU1605222A1 - Data input device - Google Patents

Abstract

The invention relates to computing and can be used in information-measuring systems and automatic control systems. The aim of the invention is to simplify the device. The device contains a buffer register 1, a multiplexer 2, a first decoder 3, a key block 4, a keyboard 5, a pulse generator 6, a control block 7 containing the first trigger 8, a second trigger 9, a counter 10, a second decoder 11. The automation task is solved by the device remove data from standard gauges with print output. 1 hp f-ly, 1 ill.

Description

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The invention relates to computing and can be used in information-measuring systems and automatic control systems.

The purpose of the invention is to simplify the device.

The drawing shows a block diagram of the device.

The device contains a buffer register 1, multiplexer 2, the first decoder 3, the key block 4, the keyboard 5, the pulse generator 6, the control block 7 containing the first trigger 8, the second trigger 9, the counter 10, the second decoder 11.

The device works as follows.

In the initial state, the first trigger 8 is at zero and blocks the passage of the pulses from the generator 6 into the circuit. The data input cycle is initiated by the Input signal from an external source. On the leading edge of the positive pulse, the input information is entered into the buffer register 1, the counter 10 is set to zero at the same time, the first trigger 8 is coded and gives permission to the second trigger 9, included as a T-trigger. for issuing a sync signal from oscillator 6. The logic level of the sync signal turns off:: the first decoder 3, the logical level O opens the first decoder 3 and changes the state of counter 10. According to the signals of the second decoder 11, multiplexer 2 sequentially 1 transmits from the buffer register 1 information is byte-by-byte to the first decoder 3 Depending on the code entering the first decoder 3, one of the keys of block 4 is opened to the keys, which simulates the operation of the corresponding keyboard key 5 After reading the entire information Formations from buffer register 1 in control block 7 generate a control pulse Carriage return (VK).

If there is a buffer register 1 for K-bytes of information, the counter 10 must read up to K -I-2. Thus, the K + 1 account at the output of the second decoder 11 generates a VC pulse, which through the corresponding key from key block 4 records information in the SLC and at the same time resets the buffer register to 0. According to the K + 2 account

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At the output of the second decoder 11, a Reset signal is generated, which resets to 0 the first trigger 8 of the start of the transmission cycle, and the circuit is reset to the next pulse of the next Input pulse.

The invention can be applied in any technological process of measuring physical quantities that have measuring instruments with access to printing. Thus, the problem of automating data acquisition and processing measurement results from previously released instruments is solved.

Claims (2)

1. An information input device containing a buffer register, the information inputs of which are information inputs of the device, a pulse generator, the output of which is connected to a clock input of a control unit, the control input of which is a control input of the device, a keyboard, a multiplexer, a decoder, . t l. № and ya e so that, in order to simplify the device, c. it has a block of keys, the information inputs of which are connected to the outputs of the first decoder, the inputs of which are connected to the outputs of the multiplexer, the information inputs of which are connected to the outputs of the buffer-leg register, the clock input of which is connected to the control input of the device, and the reset input is connected to : the second output of the control unit and the control input of the key unit, the outputs of which are connected to the inputs of the keyboard, the outputs of which are the information outputs of the device, the control input of the decoder is connected to the first output of the control unit, the output group of which is connected to the multiplexer address inputs. 2. The device according to claim 1, 1, and - from which the control unit contains the first and second triggers, the counter and the decoder, the output group of which is the output group of the control unit, the direct output of the second trigger is connected the clock input of the counter is the first output of the block, the outputs of the counter are connected to the inputs of the decoder, the first output of which is the second output of the control unit, and 516052226 the second output is connected to the reset input and the clock input is the clock signal of the first trigger, the output of which is the control unit input, the clock input is connected to the reset input, the second input of the first trigger is connected to the input trigger, the inverse output of which is the counter reset home and is connected with its information input equal to the input of the block.