Design of Infrared Multi-Point Touch Screen Based on ARM

ZHANG Wei; GUO Yong

doi:10.3788/YJYXS20132805.0698

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Design of Infrared Multi-Point Touch Screen Based on ARM

Device Physics & Device Technology | 更新时间：2020-08-12

- Design of Infrared Multi-Point Touch Screen Based on ARM
- Chinese Journal of Liquid Crystals and Displays Vol. 28, Issue 5, Pages: 698-702(2013)
- 作者机构：
  
  成都理工大学信息科学与技术学院, 四川成都 610059
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20132805.0698
  CLC： TP334
- Received：18 April 2013，
  
  Revised：25 May 2013，
  
  Published：15 October 2013
- 稿件说明：
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张伟, 郭勇. 基于ARM的红外多点触摸屏设计[J]. 液晶与显示, 2013,28(5): 698-702

ZHANG Wei, GUO Yong. Design of Infrared Multi-Point Touch Screen Based on ARM[J]. , 2013,28(5): 698-702
张伟, 郭勇. 基于ARM的红外多点触摸屏设计[J]. 液晶与显示, 2013,28(5): 698-702 DOI： 10.3788/YJYXS20132805.0698.

ZHANG Wei, GUO Yong. Design of Infrared Multi-Point Touch Screen Based on ARM[J]. , 2013,28(5): 698-702 DOI： 10.3788/YJYXS20132805.0698.

摘要

传统的红外触摸屏由于分辨率低

难以准确定位多点触控

响应速度慢

在有大障碍物遮挡等复杂情况下不能正常工作

无法满足用户的所有需求。提出基于ARM(Advanced RISC Machines)Cortex-M3 内核的STM32F103处理器的红外多点触摸屏设计方案

给出系统架构及其应用。采用

轴和

轴两端同时反向扫描的方式进行全屏扫描

从而大大提高扫描效率

响应速度也随之大幅提升。采用角度扫描算法能精确地定位多点触控。同时针对有大障碍物遮挡的情况提出了倾斜扫描单轴定点算法

保证了红外触摸屏在有大障碍物遮挡等复杂情况下能正常工作。此设计中的红外触摸屏采用标准的USB端口与上位机连接

使之能广泛地应用于各种终端。

Abstract

Traditional infrared touch-screens cann't be used in complex environment and also cannot meet all the demands of users because of the difficult in accurate positioning multi-point touch

the low resolution and the slow response.The article puts forward the design of infrared touch-screen based on ARM(Advanced RISC Machines)Cortex-M3 kernel STM32F103 processor

constructed the system architecture and application.Full scan of using

axis and

axis at both ends of the reverse greatly improves scan efficiency

as well as response speed. The angle scanning algorithm can position multi-point touch accurately.The tilt scanning uniaxial fixed-point algorithm can ensure that the infrared touch screen can work normally in complex situations such as in large obstructions.The design of the infrared touch screen with a standard USB port connect with the upper computer

so that it can widely be used in all kinds of terminal.

关键词

Keywords

references

Li Q,Fang H L,Zhang P Y,et al. The ARM based hardware system of infrared multi-touch screen design and research[C]// 2012 24th Chinese Control and Decision Conference (CCDC),Taiyuan, China:Northeastern University, 2011,10.[2] 刘彬,韩进.基于单片机的液晶显示触摸屏控制设计 [J]. 液晶与显示, 2010,25 (2):240-244.[3] 李文生,邓春健,吕燚.基于触摸显示屏的人机交互手势分析 [J]. 液晶与显示, 2011,26 (2):194-199.[4] 张传胜,郑寒雨,邓江东.基于SOPC的通用液晶触摸屏控制器的设计 [J]. 液晶与显示, 2012,27 (5):638-641.[5] 凌云翔,张国华,李锐,等.基于多点触摸的自然手势识别方法研究 [J]. 国防科技大学学报, 2010,32(1):127-132.[6] 汤世洪,刘成安,陈泉根.基于FPGA的高分辨率红外触摸屏的设计 [J].电子设计工程, 2011,19(22):163-166.[7] 毛敏.基于Protues的1632点阵LED汉字显示屏的开发[J]. 工业仪表与自动化装置, 2010,(5):96-97.[8] 李钧.一种新型红外多点触摸识别算法 [J]. 计算机与现代化,2012,(9):178-180,189.[9] 张宏伟.多触点抗强光干扰红外触摸屏的设计与验证[D].成都:电子科技大学,2009.[10] 季红艳.基于多点触摸技术的人机交互研究[D].上海:华东师范大学,2011.[11] 郑磊,杨福兴.基于AT_mega88的红外触摸屏设计 [J]. 机电产品开发与创新, 2010,23(1):27-29.

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