机构地区: 广东工业大学信息工程学院
出 处: 《仪器仪表用户》 2008年第3期79-81,共3页
摘 要: 本文针对触摸屏在实际应用中的偏差,提出一种用于校准的五点算法。本系统采用高性能单片机作为主控单元,通过模数转换芯片AD S7845,采样触摸屏数据,经过校准传送到LCD显示器显示坐标。文中给出了数据采集终端软硬件的具体实现方案和五点校准的算法,并把它应用到实际生产中,有效地实现了触摸屏校准功能。 Pointing to the deviation of touch screen in actual application, a kind of five - point calibration algorithm is presented in this paper. The data, sampled from touch screen, with high-performance MCU as the control unit and AD converter ADS7845, are calibrated and transmitted to the LCD display. The data - acquisition project and five-point calibration algorithm are presented and used in actual production, which realize calibration error of touch screen.
领 域: [自动化与计算机技术] [自动化与计算机技术]