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Identification method of noise type in capacitive touch track

A capacitive touch, noise-type technology, applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., can solve problems such as errors, false capacitive touch screens, inaccurate touch point predictions, etc.

Inactive Publication Date: 2017-03-15
BEIJING JIAOTONG UNIV
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  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, capacitive touch screen has become the mainstream choice of human-computer interaction interface. Capacitive touch screen has won the recognition of users for its good touch experience, but capacitive touch screen is easy to be affected by the internal noise of the device and produce false and wrong responses. , which is typically manifested in the inaccurate prediction of touch points in the touch trajectory and the output of zigzag trajectory during the touch operation, which affects the user experience level

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  • Identification method of noise type in capacitive touch track
  • Identification method of noise type in capacitive touch track
  • Identification method of noise type in capacitive touch track

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Embodiment Construction

[0048] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0049] Such as figure 1 As shown, the present invention discloses a method for identifying the type of capacitive touch track noise, comprising the following steps:

[0050] S1: Carry out a linear touch on the capacitive screen, scan the capacitive screen multiple times, and obtain the capacitive touch trace data. Perform a linear touch on the capacitive screen with your finger. During the touch process, the data acquisition module scans the capacitive screen regularly to collect the capacitance data of each node of the c...

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Abstract

The invention discloses an identification method of a noise type in a capacitive touch track. The identification method comprises the first step of conducing a first linear touch on one side parallel to the capacitive touch screen, and conducting multiple scanning on the capacitive touch screen to obtain data of the capacitive touch track; the second step of adopting a centroid algorithm method to process the data of the capacitive touch track, obtaining position coordinates of various touch points in the capacitive touch track, and connecting the various touch points in sequence to obtain an intact capacitive touch track; the third step of disintegrating the capacitive touch track into a real track and a noise track, and adopting a signal decomposition method to solve the noise track; the fourth step of determining the noise type of the noise track according to a mathematical statistic analytical method. According to the technological scheme of the identification method of the noise type in the capacitive touch track, the noise track in the capacitive touch track can be effectively separated, thus analysis and identification of the noise type of the capacitive touch track can be realized.

Description

technical field [0001] The present invention relates to the field of capacitive touch trace processing, and more particularly, to a method for identifying noise types of capacitive touch traces. Background technique [0002] At present, capacitive touch screen has become the mainstream choice of human-computer interaction interface. Capacitive touch screen has won the recognition of users for its good touch experience, but capacitive touch screen is easy to be affected by the internal noise of the device and produce false and wrong responses. , which is typically manifested in the inaccurate prediction of the touch point in the touch track and the output of the zigzag track during the touch operation process, thereby affecting the user experience level. With the continuous development of signal processing technology, it has become one of the research hotspots in domestic and foreign academic circles to use hardware processing or software processing methods to perform feature...

Claims

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Application Information

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IPC IPC(8): G06F3/041G06F3/044
CPCG06F3/0418G06F3/044
Inventor 李居朋张祖成曲健
Owner BEIJING JIAOTONG UNIV