SU1182506A1 - Information input device - Google Patents

Abstract

DEVICE FOR INPUT INFORMAMSH, containing a block of switching elements, encoder, memory storage, display unit, control unit, counter, first element And, the outputs of the group of switching elements are connected to the inputs of the encoder, the outputs of the group of which are connected to the inputs of the first group of memory, the outputs of which are connected to the inputs of the display unit, the output of the block of switching elements is connected to the first input of the element I, the output of which; connected to the first input of the control unit 5; the output of the encoder is connected to the counting input of the counter and the second EXO of the control unit whose outputs are connected to the inputs of the second group; a memory unit, characterized in that, in order to increase the reliability of entering information, a deplintor is entered into it, the first and second OR elements, the NOT element, the second AND element, the indicator and the delay element, the decoder inputs are connected to the counter outputs, the decoder outputs are connected to the inputs the first element OR, the output of which is connected to the second input of the element AND and through the element NOT to the first input of the second element AND, the second input of which is connected to the output of the switching element unit, and the output to the inputs of the indicator and the iBKt element, the output of the delay element is connected to the third input of the control unit 00 of the control system and the second input of the second OR element, the first input of which sd is connected to the output of the first element AND, and the output to the input of the reset of the chick count.

Description

1 11

The invention relates to automation and computing and can be used to enter information p automated control systems.

The aim of the invention is to improve. validation of input information

The drawing shows the block diagram of the device.

The device for entering information will contain a block 1 of com-1utational elements :, an encoder 2, a block 3 of memory, a lok-4 display, a block 5 of control, the first 6 and second 7 elements 7, a counter 8, a decoder, an indicator 10, the first 11 and the second 12 element OR, the element NOT 13, the delay element 1A.

.

The number of outputs of the decoder 9 is equal to the number of monitored lengths of the entered messages, and each output corresponds to the monitored number of keystrokes when entering a message of the appropriate length, Indicator 10 is a signal cell with a light or sound transmission of the Error to Operator signal.

The device works as follows.

In the initial state, the counter 8 is in the zero position and there are no resolving potentials at the outputs of the decoder, therefore there is no resolving potential at the output of element 1WH 11, the second input of element PI 6 and the input of element HE 13. At the output of the element And 7 there is a inhibitory potential, which is fed to the input of the indicator 10, prohibiting the transmission of the signal Error to the operator and operation of the element 14. When you press the keys in block 1, the signals are generated to the inputs of block 2. Block 2 converts these signals to binary Code combinations, as well as generates a signal for tracking information, which is fed to the second input of block 5 and the counting input of counter 8. As a result, block 5 is started and counter 8 is switched to the first position 5, and at block 5 output it appears signal, allowing the recording unit 3 is received at its inputs the code

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combinations. In block 4, the entered character is displayed. If after the "water of the message the number of keystrokes corresponds to the required, at the corresponding output of the decoder

sets the resolving potential, which is through the element OR 11 enters the second input of the element AND 6, preparing it for work, and through the element NOT 13 enters the first input of the element AND 7, prohibiting its operation. After entering the message, the operator presses the Space key. Space signal from the second output

block 1 is fed to the first input

the element And 6 and the second input element And 7. The resolving potential from the output of the element And 6 is fed to the first input of block 5, which is important

write signal pattern combination

A space in block 3, and then reading the message written in the memory block for its transfer to the computer. One-time signal Space, received at the first input of the element OR 12, produces a reset through it; counter 8 is reset, and the circuit is ready for entering the next message. If you enter the message by the operator

There is an error in the error, the number of keystrokes does not match the required one, and the counter 8 is located in a position different from that controlled by the decoder 9. In this case, the outputs

decoders 9, element OR 11,

the second input element And 6 there is a prohibiting potential, and at the first input of the second element And - allowing, preparing, to work. After

Press the Space key. The signal from the output of block 1 is fed to the first input of the element And 6 and the second input of the element And 7, causing it to trigger. From the output of the And 7 element, the resolving potential is fed to the input of the indicator 10, with which the error signal is transmitted to the operator, as well as to the input of the delay element 14, which delays the signal received at its input for a time sufficient for the operator to perceive the Error signal. Upon expiration of the delay time from the output of the element 14, the resolving potential enters

the third input of block 5, which prohibits the reading and transmission of erroneous information recorded in block 3 and erases it, as well as the second input of the element is entered, 31182506-4 OR 12, through which it stops transmitting the signal. Error reset the counter to the zero operator and the device is ready for an element 10 to input a message.

Claims (1)

DEVICE FOR INFORMATION INPUT, containing a block of switching elements, an encoder, a memory block, an indication block, a control unit, a counter, a first element AND, the outputs of a group of a block of switching elements are connected to the inputs of the encoder, the group outputs of which are connected to the inputs of the first group of a memory block, the outputs which are connected to the inputs of the display unit, the output of the block of switching elements is connected to the first input of the element And, the output of which; connected to the first input of the control unit, the output of the encoder is connected to the counting input of the counter and the second input of the control unit, the outputs of which are connected to the inputs of the second group of the memory unit, characterized in that, in order to increase the reliability of the input of information, a decoder, the first and second elements are introduced OR, element NOT, second element AND, indicator and delay element, decoder inputs are connected to counter outputs, decoder outputs are connected to inputs of the first OR, the output of which is connected g to the second input of the element And through the element NOT with the first input of the second element AND, the second input of which is connected to the output of the block of switching elements, and the output with the inputs of the indicator and the delay element, the output of the delay element is connected to the third input of the control unit and the second input of the second OR element, the first input of which connected to the output of the first AND element, and the output to the output of the counter reset. SU „..1182506