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

Heuristic rapid scanning method and system for infrared screen

A fast scanning and heuristic technology, applied in the field of infrared screen scanning, can solve the problems of reduced scanning speed and increased scanning time, and achieve the effect of increasing scanning speed and reducing scanning time

Pending Publication Date: 2017-06-09
BEIJING IRTOUCH SYST CO LTD +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This scanning method is non-intelligent. It mechanically scans fixed scanning lines every time, and some of these fixed scanning lines are not used. Repeated scanning will lead to increased scanning time and reduced scanning speed.

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
  • Heuristic rapid scanning method and system for infrared screen
  • Heuristic rapid scanning method and system for infrared screen
  • Heuristic rapid scanning method and system for infrared screen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 As shown, the present embodiment discloses a heuristic fast scanning method for an infrared screen, comprising the following steps:

[0035] The present invention utilizes the existing information (including the position of the midpoint of the last frame, the scanned part of the current frame, the scanned previous side, etc.) to determine the next scanning operation.

[0036] The scanning process is generally divided into two parts: horizontal scanning (H direction) and vertical scanning, (V direction).

[0037] The H direction and the V direction are generally scanned at intervals, that is, ... H, V, H, V, H, V, H, V ...

[0038] In multi-point recognition, the touch object is generally a finger, which is large in size and can generally block the main axis. Therefore, after it is determined that it is a multi-point operation, this fast scanning mode can be started immediately, and enter step S1; before the step S1, there is also a step of presetting ...

Embodiment 2

[0055] Such as image 3 As shown, different from Embodiment 1, the shape of the quadrilateral area formed between the finite light rays and their corresponding receivers and transmitters in this embodiment is a parallelogram.

[0056] When scanning, firstly scan the finite rays in several rays, for example, the finite rays are defined by E 3 ,E 4 ,E 5 ,E 6 and E 7 emitted, and parallel to each other E 3 D. 1 ,E 4 D. 2 ,E 5 D. 3 ,E 6 D. 4 and E 7 D. 5 , judging E 3 D. 1 ,E 4 D. 2 ,E 5 D. 3 ,E 6 D. 4 and E 7 D. 5 Whether it is blocked by the touch object, if E 3 D. 1 ,E 4 D. 2 ,E 5 D. 3 ,E 6 D. 4 and E 7 D. 5 If they are not blocked by the touch object, then E can be judged 3 D. 1 ,E 4 D. 2 ,E 5 D. 3 ,E 6 D. 4 and E 7 D. 5 with transmitter E 3 ,E 4 ,E 5 ,E 6 ,E 7 and receiver D 1 、D 2 、D 3 、D 4 、D 5 The parallelogram region E formed between 3 D. 1 D. 5 E. 7 There is no touch object occlusion, when the parallelogram area E...

Embodiment 3

[0065] Such as Figure 4 As shown, different from Embodiment 1 and Embodiment 2, the shape of the quadrilateral area formed between the finite light rays and their corresponding receivers and transmitters in this embodiment is trapezoidal.

[0066] When scanning, firstly scan the finite rays in several rays, for example, the finite rays are defined by E 3 ,E 4 ,E 5 and E 6 emitted, and not parallel to each other E 3 D. 2 ,E 3 D. 3 ,E 4 D. 4 ,E 5 D. 5 ,E 6 D. 6 and E 6 D. 7 , judging E 3 D. 2 ,E 3 D. 3 ,E 4 D. 4 ,E 5 D. 5 ,E 6 D. 6 and E 6 D. 7 Whether it is blocked by the touch object, if E 3 D. 2 ,E 3 D. 3 ,E 4 D. 4 ,E 5 D. 5 ,E 6 D. 6 and E 6 D. 7 If they are not blocked by the touch object, then E can be judged 3 D. 2 ,E 3 D. 3 ,E 4 D. 4 ,E 5 D. 5 ,E 6 D. 6 and E 6 D. 7 with transmitter E 3 ,E 4 ,E 5 ,E 6 and receiver D 2 、D 3 、D 4 、D 5 、D 6 、D 7 The trapezoidal region E formed between 3 D. 2 D. 7 E. 6 There ...

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 heuristic rapid scanning method for an infrared screen. The heuristic rapid scanning method includes presetting a complete scanning light network in a main control module of the infrared screen, wherein the complete scanning light network includes a plurality of light beams formed between an emitter and a receiver; and determining if a touch article blocks a zone formed among a limited number of light beams in the plurality of light beams, the emitter emitting the limited number of light beams, and the receiver receiving the limited number of light beams or not, and skipping scanning of other light beams in the zone if not. The invention also provides a system corresponding to the method. The system includes a main control module, an emission module, a receiving module and a signal processing module; and the main control module is electrically connected to the emission module, the receiving module and the signal processing module. The method and the system can determine and remove useless scanning lines through analysis on the previous scanning information while performing scanning, can shorten the scanning time, and can greatly improve the scanning speed.

Description

technical field [0001] The invention relates to the technical field of infrared screen scanning, in particular to a heuristic fast scanning method and system for infrared screens. Background technique [0002] With the development and popularization of computer technology, in the early 1990s, a brand-new human-computer interaction technology - touch screen technology emerged. Using this touch screen technology, the user only needs to click on the icon or text on the display screen, and the computer can perform related operations according to the input instructions. It completely gets rid of the shackles of the keyboard and mouse, and has a wide range of applications. More convenient and faster. [0003] With the maturity of touch product technology, the requirements for the function, performance and cost of touch products are also getting higher and higher. Various commercial touch screen technologies that have been formed include: resistive technology touch screen, surf...

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): G06F3/042
CPCG06F3/0421
Inventor 刘洋
Owner BEIJING IRTOUCH SYST CO LTD