SU1121665A1 - Information input device - Google Patents

Abstract

DEVICE DAY INPUT INFORMATION, containing a touch screen-. First to fourth keys, ripple voltage source, switching unit, keyboard outputs are connected to control inputs of keys, characterized in that, in order to improve device accuracy, the first to third switches, frequency converter, first and the second integrating elements, the first and second reversible counters and depafafrator, the first output of the pulsating voltage source are connected to the first input of the frequency converter and to the common bus of the device, the second is connected to the second The first and second outputs of the frequency converter are connected to the common bus of the device and the second information input of the first switch, respectively, the output of the first switch under the device is connected to the zero potential bus of the device, the outputs of the keys from the first to the fourth They are connected via the first integrating element to the control input of the first switch, directly to the information inputs of the second and third re-. through the second integration element to the control inputs of the second and third switches, respectively, the outputs of the second and third switches are connected respectively to the forward and reverse counts of the first and second reversible counters, the outputs of which are connected to the decoder inputs, the outputs of which are connected with the inputs of the switching unit.

Description

one

The invention relates to automation and computing and can be used to manually enter information in digital or digital form in various control objects.

Devices are known for inputting information into control objects in digital or analog form CO.

Closest to the proposed technical entity is a device for entering information, containing a touch keyboard, first to fourth keys, a source of pulsating power, a switching unit, outputs of the touch keyboard are connected to control inputs of keys 23.

However, the known device is characterized by an insufficiently high accuracy of entering information limited by the number of contacts in the touch keyboard.

The purpose of the invention is to increase the accuracy of the device.

The goal is achieved by the fact that the first to fourth keys, the source of the pulsating voltage, the switching unit, the outputs of the touch keyboard are connected to the control inputs of the keys to the input device containing the touch keyboard, the first to third switches, the frequency converter, the first and second integrating elements, the first And the second reversible counters and the decoder, the first output of the source of pulsating voltage is connected to the first input of the frequency converter and has a common bus the second is connected to the second input of the frequency converter and to the first information input of the first switch, the first and second outputs of the frequency converter are connected to the common bus of the device and the second information input of the first switch, respectively, the output of the first switch is connected to the key of the zero potential of the device; the fourth is connected via the first integrating element to the control input of the first switch, directly to the information inputs of the second and third of its switches and through the second integrating element 16652

To the control inputs of the second and third switches, respectively, the outputs of the second and third switches are connected, respectively, 5 to the direct and reverse counting inputs of the first and second reversible meters, the outputs of which are connected to the inputs of the decoder, the outputs of which are connected to the inputs of the switching unit 10.

FIG. 1 shows a block diagram of the proposed device; in fig. 2 - the location of the touch contacts in the touch keyboard,

15 A device for inputting information including a source of pulsating voltage source 1, frequency converter 2, first switch 3, power source 4, first to fourth keys 5, 6, 7 and 8, touch keyboard formed by touch contacts 9 Smoothly, 10 X, 11 U, 12 -, second switch 13, third switch 14, first

5 and second reversible counters 15

and 16, a decoder 17, an indication unit 18, a switching unit 19, a first integrating element 20, a second integrating element 21, an UDFroppable first 22 and a second 23 reference voltage divider.

The information input device operates as follows.

In the initial state, the keys are 5-8

5 closed, reversible counters 15 and 16 cleared. The decoder 17 causes the control signal to set the switching unit 19 and the display unit 18 to the position corresponding to

0 zero.

When the operator touches the contact 10 on the output of the key 6, pulses appear corresponding to the frequency of the pulsating voltage. Data

The pulses are recorded by a counter 15, at the outputs of which the X coordinate code appears. The value of this code is controlled by the display unit t8. Similarly, when the operator contacts contact 11, the code of the Y coordinate is recorded in the counter 16. If simultaneously with the touch contacts tO or 11, the operator touches contact 12, then the size of the codes

5 at the outputs of the counters 15 or 16 are reduced.

The signals from the outputs of the decoder 17 control the switching unit 19 3 depending on the input values of the coordinate codes X and Y. Thus, using the three touch contacts, you can enter any value of the vector quantity into the control node through its coordinates X and Y. The device allows you to set the desired value of the vector smoothly, and therefore more accurately enter information. To do this, before the desired Value of the variable value X or Y, displayed on the display of the display unit 18, the operator additionally touches the touch contact 9, Smoothly. The pulses from the output 54 of the key 5 are integrated by the element 20, and the switch 3 connects to the power supply 4 "and to the control inputs of the keys 5-8 frequency converter 2, In this case, the frequency of the pulses, at the outputs of the keys 5-8, decreases . The values of the codes at the outputs of the counters 15 and 16 change more slowly, which makes it possible to fix any value of the vector quantity with a higher accuracy, fundamentally limited only by the number of counters.

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Claims (1)

INFORMATION INPUT DEVICE containing sensory valve. a keypad, from the first to the fourth keys, a pulsating voltage source, a switching unit ”the touch outputs of the ⁴ keyboards are connected to the control inputs of the keys, characterized in that, in order to increase the accuracy of the device, the first to third switches, the frequency converter, the first and the second integrating elements, the first and second reversible counters and decoder, the first output of the ripple voltage source is connected to the first input of the frequency converter and from the common bus of the device, the second is connected to the second the frequency converter and the first information input of the first switch, the first and second outputs of the frequency converter are connected to the device common bus and the second information input of the first switch, respectively, the output of the first switch is connected to the device’s zero potential bus, the key outputs from the first to fourth are connected through the first integrating element to the control input of the first switch, directly to the information inputs of the second and third switch. switches and through the second integrating element to the control inputs of the second and third switches, respectively, the outputs of the second and third switches are connected respectively to the inputs of the direct and reverse counts of the first and second reversible counters, the outputs of which are connected to the inputs of the decoder ί 1 'of the radiator, the outputs of which connected to the inputs of the switching unit. > 1 1121665