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Device for eliminating noise misjudgment and household appliance

A technology for household appliances and noise elimination, which is applied to the device for eliminating noise misjudgment and the field of household appliances, which can solve problems such as misjudgment, achieve the effects of easy installation and lower misjudgment rate

Pending Publication Date: 2021-01-12
TYCO ELECTRONICS (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under normal circumstances, the detection area and the non-detection area are coupled together, so that the knock event that occurs in the non-detection area will also be transmitted to the sensor in the detection area, which may cause the sensor to transmit the tap event in the non-detection area. The tap event is misjudged as a tap event in the detection area

Method used

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  • Device for eliminating noise misjudgment and household appliance
  • Device for eliminating noise misjudgment and household appliance
  • Device for eliminating noise misjudgment and household appliance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] figure 1 An exemplary schematic diagram of an apparatus for eliminating noise misjudgments is shown. The device disclosed herein can generally be applied to devices that implement specific operations through user taps, for example, various devices and machines such as household appliances and experimental equipment. In this embodiment, the device includes: a first piezoelectric sensor 100, a second piezoelectric sensor 200, and a control circuit board ( figure 1 not shown). Wherein, the first piezoelectric sensor 100 is suitable for mounting on the detection component 10, and is used to detect the knocking event applied to the detection component 10 and the non-detection component 20 coupled with the detection component 10; the second piezoelectric sensor 200 It is suitable for mounting on the non-detection component 20, and is used to detect a knock event applied to the non-detection component 20 and the detection component 10; the control circuit board is suitable f...

Embodiment 2

[0073] figure 2 An exemplary schematic diagram of a household appliance for eliminating noise misjudgments is shown. In this embodiment, the household appliance is preferably a washing machine, which includes: a touch door 210, a cabinet body 220, a first piezoelectric sensor 100, a second piezoelectric sensor 200, and a control circuit board ( figure 2 not shown). Wherein, the cabinet body 220 is adapted to be coupled with the touch door 210; the first piezoelectric sensor 100 is adapted to be mounted on the touch door 210, and is used to detect a knock event applied to the touch door 210 and the cabinet body 220; The second piezoelectric sensor 200 is suitable for mounting on the cabinet body 220, and is used for detecting the knocking event applied on the cabinet body 220 and the touch door 210; and the control circuit board is suitable for connecting with the first piezoelectric sensor 100 and the second The piezoelectric sensor 200 communicates to compare the first de...

Embodiment 3

[0091] figure 2 An exemplary schematic diagram of a household appliance for eliminating noise misjudgments is shown. In this embodiment, the structure of the household appliance has been described in detail in Embodiment 2, and will not be repeated here.

[0092] In this embodiment, the disclosed household appliance can be based on the working principle of the first piezoelectric sensor 100, the second piezoelectric sensor 200 and the control circuit board in the first embodiment, or can use the first piezoelectric sensor in the second embodiment The working principle of sensor 100, second piezoelectric sensor 200 and control circuit board (as Figure 4 shown), to realize the correct judgment on whether the knocking event comes from the touch door 210, which will not be repeated here.

[0093] In this example, when image 3 When the control circuit board 300 determines that the knock event comes from the touch door 210, the control circuit board 300 can also perform the fo...

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PUM

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Abstract

The invention discloses a device for eliminating noise misjudgment and a household appliance, and the device comprises at least one first piezoelectric sensor which is suitable for being pasted on a detection part of a carrier and is used for detecting a knocking event exerted on the carrier, the at least one second piezoelectric sensor is suitable for being attached to a non-detection part of thecarrier and used for detecting a knocking event applied to the carrier, and the second piezoelectric sensor is suitable for being communicated with the first piezoelectric sensor and the second piezoelectric sensor; and the control circuit board is used for comparing a first detection signal output by the first piezoelectric sensor with a second detection signal output by the second piezoelectricsensor to determine whether the knocking event comes from the detection part or not. The device disclosed by the invention can conveniently and accurately identify whether a knocking event occurs ina designated area (such as a detection part), and is simple in structure and low in cost.

Description

technical field [0001] The invention relates to the field of touch detection, and more specifically, to a device for eliminating noise misjudgment and a household appliance. Background technique [0002] In order to increase the convenience of controlling equipment and household appliances, touching or tapping a surface with fingers is a more intuitive and convenient way of human-computer interaction. The conventionally used capacitive touch screen is relatively mature, but when the touch range is relatively large, such as When the entire washing machine or refrigerator door is used as the input surface, its cost is high, and because it changes the capacitance value through contact, it cannot distinguish between the touch force and the touch material, as long as it is a conductive material, it can be triggered. causing many false triggers. When the usage scenario is defined as the user using finger parts such as knuckles or fingertips to perform some simple manipulations by...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
CPCG06F3/0414
Inventor 冯玉林陈进蒋一峰
Owner TYCO ELECTRONICS (SHANGHAI) CO LTD