Unlock instant, AI-driven research and patent intelligence for your innovation.

Key detection method and device, computer readable storage medium and terminal

A detection method and computer program technology, applied to measuring devices, measuring electricity, capacitance measurement, etc., to achieve accurate detection of key sensitivity, simplify operating procedures, and improve detection efficiency

Pending Publication Date: 2022-06-28
JIANGSU HUITONG GRP
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is how to quickly and easily detect multiple keys of the product to be tested at one time when detecting capacitive keys, so as to improve detection efficiency and reduce labor costs

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Key detection method and device, computer readable storage medium and terminal
  • Key detection method and device, computer readable storage medium and terminal
  • Key detection method and device, computer readable storage medium and terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] As mentioned above, there are more and more capacitive button products. When detecting printed circuit boards or finished products of capacitive buttons, artificial fingers or gold finger air pumps are often used to click or touch the buttons one by one. The capacitance change between the pads can detect whether the button is normal or not.

[0028] The inventor of the present invention has found through research that the disadvantage of using the above solution is that if a product has a large number of buttons, it needs to be clicked (touched) one by one for detection, resulting in low efficiency and high labor costs; After the key is pressed, the specific fault of the key cannot be determined immediately, and it is necessary to use other tools to measure slowly, and the detection process is cumbersome and time-consuming.

[0029]In the embodiment of the present invention, first determine the first capacitance value between pairs of pads of each key on the circuit boa...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a key detection method and device, a computer readable storage medium and a terminal, and the method comprises the steps: determining first capacitance values of a plurality of keys on a circuit board to be detected, each key comprises paired gaskets, and the first capacitance value of each key is used for representing the capacitance between the paired gaskets; setting each key as a mutual capacitance type touch key, covering the circuit board to be detected with an electrified conductive plate, and discharging to a preset gasket in the paired gaskets of each key so as to change the capacitance between the paired gaskets; determining second capacitance values of the plurality of keys, wherein the second capacitance value of each key is used for representing capacitance between the paired gaskets; and for each key, when an error value between a capacitance difference value between the second capacitance value and the first capacitance value and a preset capacitance difference value exceeds a preset error range, determining that the key is an unqualified key. The key detection efficiency can be remarkably improved, the detection process is simplified, and the labor cost is reduced.

Description

technical field [0001] The present invention relates to the technical field of key testing, and in particular, to a key detection method and device, a computer-readable storage medium, and a terminal. Background technique [0002] At present, the Internet of Things technology is developing rapidly, and electronic products pay more and more attention to the innovation of human-computer interaction. Traditional mechanical buttons are gradually replaced by touch switches. IoT devices such as smart door locks and smart lamps have used touch buttons as the main interaction. Way. Capacitive touch buttons have long service life and low maintenance costs. In addition, the silk screen printed on the glass panel is beautiful. There are more and more capacitive touch chip manufacturers and more and more products. The basic structure of capacitive touch buttons includes the main control chip, printed circuit board ( Printed Circuit Board, PCB), keys composed of pairs of spacers and she...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01R31/327G01R27/26
CPCG01R31/3277G01R27/2605
Inventor 王莹龙涛杨蕾
Owner JIANGSU HUITONG GRP