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Key control method and circuit

A technology for controlling circuits and control methods, which is applied to circuits, electrical switches, electrical components, etc., to achieve the effect of reducing quantity, reducing cost, and improving utilization rate

Pending Publication Date: 2022-02-01
朱俊锋 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned defects in the prior art, the present invention provides a button control method and circuit, aiming at solving the problem of how to reduce the user's learning cost of using buttons

Method used

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  • Key control method and circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] In this embodiment, the technical solution of the present invention is applied to the air conditioner to implement the following steps: cyclically detect the status of each key; display the operation prompts of each of the keys; the keys can only be activated by the corresponding key Key action operation.

[0033] like figure 1 As shown, the button control circuit includes a control module, a display module, several buttons and a communication port;

[0034] like figure 2 As shown, in this embodiment, the model of the single-chip microcomputer U1 is N76E003AT20, and an analog / digital converter is arranged in the single-chip microcomputer U1;

[0035] The display module includes LED lights D1, LED lights D2, LED lights D3 and LED lights D4;

[0036] The buttons are mechanical switches, including mechanical switch S1, mechanical switch S2, mechanical switch S3 and mechanical switch S4;

[0037] LED light D1 corresponds to mechanical switch S1, LED light D2 correspond...

Embodiment 2

[0045] In this implementation, the technical solution of the present invention is applied to the water heater.

[0046] like image 3 As shown, the model of MCU U1 is CA51F551;

[0047] The display module includes LED lights D1, LED lights D2, LED lights D3 and LED lights D4;

[0048] The buttons are touch buttons, including touch button T1, touch button T2, touch button T3 and touch button T4;

[0049] The LED light D1 corresponds to the touch button T1, the LED light D2 corresponds to the touch button T2, the LED light D3 corresponds to the touch button T3, and the LED light D4 corresponds to the touch button T4;

[0050] On the water heater of this embodiment, constant light means that the touch button needs to be pressed for a long time, the first flickering frequency of 1HZ means that the touch button needs to be double-clicked, and the second flickering frequency of 2HZ means that the touch button needs to be clicked; The touch button is currently unavailable, and tho...

Embodiment 3

[0058] like image 3 As shown, in this embodiment, the function to be realized is to allow the user to click from the touch button T1 to the touch button T4 in turn. When the single-chip microcomputer U1 is powered on, the circuit performs a self-test, and each LED light from LED light D1 to LED light D4 The lights D are all on for 100ms and then off. At this time, the LED light D1 indicating the touch button T1 is flashing, and the LED light D1 is on for 100ms--600ms and then off for 100ms--600ms. This cycle indicates that the touch button T1 button can be clicked. ; LED light D2, LED light D3, and LED light D4 are off, indicating that the touch button T2, touch button T3, and touch button T4 are invalid.

[0059] Only when the user clicks the touch button T1, the microcontroller U1 will enter the operation prompt for the touch button T2 at this time, the LED light D1 is off, the LED light D2 is on for 100ms--600ms and then off for 100ms--600ms, and so on. , indicating that ...

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PUM

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Abstract

The invention discloses a key control method and circuit, and relates to the technical field of household appliances, and the method comprises the following steps: cyclically detecting the state of each key; displaying an operation prompt of each key; the key can only be operated by the key action corresponding to the operation prompt. The key control circuit comprises a control module, a plurality of keys and a display module; the control module is used for controlling the display module to display the operation prompt of each key; the key can only be operated by the key action corresponding to the operation prompt. Compared with the prior art, which keys can be operated and how to operate are displayed through the LED lamp, one key does not need to be independently arranged for each function, the utilization rate of a single key is increased, the number of keys needed integrally is reduced, household appliances are more attractive, and meanwhile the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to a button control method and circuit. Background technique [0002] With the improvement of living standards, the penetration rate of household appliances is getting higher and higher. Now all operations on the market use LED lights to indicate the current status of the product after the key is pressed. One LED light indicates the state of a key operation. Or the LED light is on after the key is pressed, indicating that the key is pressed; when the key is not pressed, the LED light is off, indicating that the key is not pressed. On the contrary, the opposite is true, the LED light is off when the button is pressed, and the LED light is always on when the button is not pressed. In addition, when the product has many functions, in order to facilitate the operation of the user, many buttons will be made on the product, and each button represents a function. operate; ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H9/54H01H13/02H03K17/96H05B45/30H05B45/305
CPCH01H9/54H01H13/023H03K17/96H05B45/30H05B45/305H01H2013/026
Inventor 朱俊锋田洪光
Owner 朱俊锋