SU1698884A1 - Digital data input device - Google Patents

Abstract

The invention relates to automation and computing and can be used in systems for the automated collection and processing of information, in particular as a portable device for collecting information in field conditions. The aim of the invention is to simplify the device. The device contains parameters 1, first 2 and second 4 counters, control unit 3, digital board 5, registers 6, 8, keyboard 7, the device for entering information has a simple design, low power consumption and dimensions, which allows to use it as a portable device. 5 il.

Description

7 I

The invention relates to automation and computer technology and can be used in systems for the automated collection and processing of information, in particular as a portable device for collecting information in field conditions.

A known console for inputting digital information comprising a serially connected dialing device, an intermediate register, an output buffer register, and a digital display connected to the intermediate register.

This device is characterized by low efficiency of information input and irrational use of the buffer register memory.

Closest to the present invention is a console for inputting digital information, containing a command board associated with input and output with a memory unit, with output — with a command board, a parameter board. intermediate register and output buffer register.

The console is designed to generate special information on a pre-developed program. The presence of three boards increases its size and power consumption, making it difficult to use it as a portable device for collecting information in field conditions.

The aim of the invention is to simplify the device.

In the device containing the parameter display, the keyboard connected with the first output to the control unit, and the second output to the second input of the intermediate register, the output of which is connected to the digital display, the buffer register connected to the first input with the output of the control unit, a parameter counter is entered with a preset and a row counter, the first three inputs of the parameter counter are connected to the first three outputs of the control device, in addition, the third output of the sub-key control device to the second input of the row counter, the fourth output of the control unit is connected to the first input of the intermediate register, the second input of which is connected to the second input of the buffer register and the fourth input of the parameter counter, the first output of which is connected to the first input of the parameter board, and the second output is connected to the first input of the row counter whose output is connected to the second input of the parameter board.

FIG. 1 shows a block diagram of the console; in fig. 2 - digital display and parameters; in fig. 6 is a block diagram of the control unit; figure 4 is a diagram of the first

counter; Fig, 5 is a diagram of the first register.

The device contains 1 parameter board, the first counter 2, the control unit 3, the second counter 4, the digital board 5, the first register 6, the keyboard 7, the second register 8. tires 9-12. The control unit includes an OR 13 element, an initial setup circuit 14, an RS-flip-flop 15, an address generation circuit 16, an OR 17 element, an I18 element, a counter 19, an IS-NOT 20 element, a delay element 21, push-pull D-triggers 22 and 23, RS trigger 24, element 25.

The first counter includes a binary counter 26, a register 27, a decoder 28, a comparator 29 codes, a one-shot 30..

The scoreboard 1 of the parameters and the digital scoreboard 5 are the digital indicators, in the cells of which the digits from 0 to 9 and comma are displayed.

The parameter number (column) and the line number are indicated on the parameter panel 1, and the numeric value of the parameter entered from the keyboard is displayed on the digital display 5.

A keyboard with an encoder of the skating-type is used as the keyboard 7. Keyboard 7 contains one decade of numeric buttons from 0 to 9, the function keys Begin of the table, End of table, Splitter, Key, Zap and special keys that allow for correcting input errors.

The key codes from the keyboard 7 are received via bus 9.

The first counter, the row counter, is the K 561IE14 serially connected three binary-decimal counters with subsequent decoding of the multi-segment code on the K176ID20 microcircuits.

Register 8 is made on a K537RU10 memory chip.

The input of the control unit 3 via the bus 12 (see Fig. 1) receives signals directly from the contacts of the keys of the keyboard 7, as well as the Strobe signal when pressing any of the keys; Lx1 - from the End of Table key; In 2 - from the Start button of the table; VH.Z - from the key separator; Bx.4 - r from the Reset key; V.5 - Strobe when pressing any of the keys.

At the output of the control unit 3, a sequence of pulses is formed: Ex. 1 - counting pulses of the parameter number; Out 2 - permission to write to the register of preliminary installation of the parameter counter; Out 3 — reset the control circuit of the counter 2, reset the counter 4; Out 4 (bus 10) four register control signals 6 (O - the digital display 5 is turned on and recording into the register 6 is enabled; D - the digital display 5 is turned off and writing to the register 6 is prohibited); Out 5 - (bus 11) write signal to register 8, signals of the address of the next register memory cell 6.

The device for entering digital information works as follows.

After turning on the power supply, the electric circuit is reset. At the third output of the control unit 3, 1 appears, which sets the counter 26 and the counter A to the initial state. The outputs of the decoder 28 are disconnected from the display of 1 parameters, as a result of which the display of 1 parameters goes out. Counter 19 is also set to the initial state, translating trigger 24 to a single state, which causes register 6 to be locked, and digital display 5 goes out.

Then the initialization of the table begins, the Operator enters the required number of parameters from the keyboard. By the signal from the second output of the control unit 3, the code of the input number is recorded in the register 27 of counter 2. By the signal from the fifth output, the code is recorded in the register 8. By the signal from the fourth output, the code is recorded in the register 6 and displayed after decryption on the digital display 5.

After that, the operator presses the Start button on the table. Exit 3 of control unit 3 is transferred to the zero state, and Ex. 2 - to 1, thus, the key codes are not recorded in the register 27 of counter 2 and the counting of pulses by counter 26 and counter 4 is enabled, as well as the display of 1 parameter board. On the 1 parameter board, the initial parameter number O and the initial line number 000 are displayed.

The operator then presses the Separator key. The counter 19 of the control unit 3 is reset, and the triggers 22 and 24 are set to one.

Register B is disabled and digital display 5 goes out.

The key codes for the start of the table and the separator are written to register 8 by the signal Exit. 5. This completes the initialization of the table.

After this, register 8 stores information about the size of the table — the number of columns (parameters). If necessary, the table can be initialized by date, time and number. But to do this, after turning on the device, it is necessary to press the End of table key and enter

This data is before pressing the Start button of the table to separate the title of the table sent.

Then begins the process of filling the columns of the table. The operator enters the numeric value of the zero column, which is recorded in register 8 and displayed on the digital scoreboard 5. Then the operator presses the Splitter key, the code of which is recorded in the register 8 and a signal is generated at the first output of block 3, which is fed to input C of the counter 26. Counter 26 increases value by one. This increased value is displayed on the scoreboard 1 of the parameters by the number 1 and indicates that the operator will fill in the column number one. When you press the Splitter key, the counter 19 is reset and, accordingly, the digital display 5 goes out. Then the operator enters the numeric data of the first column and presses the Splitter key. The process then repeats. An increase in the value of counter 26 occurs until it becomes equal to the value previously recorded when the table is initialized in register 27. As soon as the counter code 26 and register 27 match, the code comparator 29 outputs a signal to the input of one-shot 30, After the next signal arrives Out 1 one-shot 30 starts. The output pulse of odovibrator 30 increases the value of counter 4 by one and resets counter 26 to the initial state. Then on the 2 parameter board, the zero column number and the first row number (001) are displayed.

The process of filling the table is then repeated.

When the table is completed, the End of Table key is pressed. After that, the device is ready to write the following table. If register 8 remains empty memory cells, the new tables are placed one after the other.

The information recorded in register 8 can be transferred to a computer for further processing.

As the element base used chip series K561, K537.

Tables 1 and 5 are made on liquid crystal indicators IZhTs5-4 / 8.

The power consumption of the device is not more than 5 mW. The memory of the buffer register is 32 kB.

The storage time of information in the register 8 is not less than 6 months. Overall dimensions 220 x 100 x 100 mm. Weight 1.2 kg.

The device for entering digital information in comparison with the prototype has a simpler design, less power consumption and dimensions. This allows the device to be used as a portable device.

At the same time, during operation, the number of workers is reduced, transportation and maintenance costs are reduced, and operational efficiency is improved.

Claims (1)

Invention Formula A device for entering digital information containing a keyboard, first and second registers, a digital scoreboard and a parameter board, a control unit, the first group of keyboard outputs connected to information inputs of the first register whose outputs are connected to the digital board inputs, the second group of keyboard outputs connected to inputs control unit, the first group of outputs which is connected to the control inputs of the second register, the outputs of which are informational outputs of the device, characterized in that. that, in order to simplify the device, the first and second counters are introduced in it, the output groups of which are connected to the parameter board inputs, the first, second and third outputs of the control unit are connected respectively to the synchronous input. the control input and the reset input of the first counter, the output of which is connected to the counting input of the second counter, the reset input of which is connected to the third output of the control unit, the first group of keyboard outputs is connected to the information inputs of the first counter and the second register, the second group of outputs of the control unit is connected to control inputs of the first register. Parameter board Row Number Column Number (parameter) FIG. 2 Circuit board Input data with so with so ABOUT (ABOUT ND Oquunod -ShZZ 02 -as / odoc gf3 1tdtd dialer "S Ј §1 " I Schig.5