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Key detecting method and device

A detection method and a detection device technology, applied in the field of keyboards, can solve problems such as missed key detection, performance impact, and defects in the keyboard, and achieve the effect of improving quality, good performance, and reducing the risk of key missed detection

Inactive Publication Date: 2011-03-30
SHENZHEN ZHENGTONG ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, even if the five-point method is adopted, there are still some keys that fail to be pressed and missed the detection, which makes the produced keyboard flawed and affects its performance in practical applications.

Method used

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Experimental program
Comparison scheme
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Embodiment Construction

[0021] Further details will be given below in conjunction with the preferred embodiments shown in the accompanying drawings.

[0022] The button detection method of the present invention is used to detect each button 11 in the keyboard, such as figure 2 As shown, the front of each button is evenly divided into three rows by three columns, and the intersection points 111, 112, 113, 114, 115, 116, 117, 118 and 119 of the nine rows and columns are respectively pressed / released The operation of the button and the corresponding relationship between the closing / opening of the button and the pressing / release of the button are monitored accordingly. Only when the detection of the nine points of the button is normal can the button be judged to be qualified.

[0023] The flowchart of the key detection method embodiment of the present invention, as image 3 As shown, it roughly includes:

[0024] Step 10: Align the first key in the keyboard;

[0025] Step 20: Align the first area of ...

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PUM

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Abstract

A key detecting method and device are used for detecting each key in the keyboard. The method is characterized in that the front of each key is square or rectangular and is uniformly divided into at least three lines and three rows; pressing / releasing operation is carried out on at least nine cross points of the lines and rows respectively and the correspondence between key closing / disconnecting and key pressing / releasing is correspondingly monitored, and the key detection can be judged qualified only when the detection of at least nine points of the keys is normal. By uniformly dividing the front of the keys into at least nine parts and detecting each part, the invention can greatly reduce the risk of leakage detection of the keys which do not work through pressing and improve the quality of the keyboard, thus being capable of ensuring good performance of the keyboard in practical application.

Description

technical field [0001] The invention relates to a keyboard, in particular to key reliability detection in the manufacturing process of the keyboard. Background technique [0002] An existing metal keyboard 1 for financial equipment, such as figure 1 As shown, it includes sixteen keys 11 distributed in four rows by four columns, a panel 12 and a bottom plate 13 . The front of each key 11 is square or rectangular. After each key 11 is installed in place, due to the interaction between the key 11 and other structural components of the keyboard, the key 11 may fail to be pressed. Therefore, in the existing keyboard manufacturing process, after each key is installed in place, it is necessary to detect whether the key can be pressed normally. Among them, the simplest detection method is to perform a press / release operation in the central area of ​​the key, and simultaneously detect the closed / open state of the key to determine whether the key is normal. If there is an abnormal k...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M5/00
Inventor 李克敏李熙林闫振洲肖飞莫坤龙陈兵
Owner SHENZHEN ZHENGTONG ELECTRONICS