星载高分辨率红外触摸屏的设计与实现  

Design and Implementation of the Space-borne High Resolution Infrared Touch Screen

作　　者：李泰国[1] 李文新[1] 董义鹏[1] 马文[1] 夏加高 

机构地区：[1]兰州空间技术物理研究所,甘肃兰州730000

出　　处：《自动化仪表》2016年第10期36-39,42,共5页Process Automation Instrumentation

摘　　要：针对航天电子产品特殊的应用环境,为优化航天仪表产品人机交互方式,研究了基于现场可编程门阵列(FPGA)+数字信号处理(DSP)架构的星载高分辨率红外触摸屏的设计与实现方法。在介绍了星载红外触摸屏系统整体架构的基础上,详细阐述了星载红外触摸屏的硬件设计、FPGA设计、图形用户界面(GUI)设计以及基于拉格朗日插值的DSP算法设计。针对星载红外触摸屏的特殊用途,分析了星载红外触摸屏的可靠性设计;对装配完成后的星载红外触摸屏进行了系统性能测试。测试结果表明,该系统简单可靠、工作稳定、屏幕分辨率高,可以满足航天仪表产品的特殊需求。According to the special application environment of aerospace electronic products, the human - computer interaction of aerospace instrumentation products is optimized, and the design and implementation methods of space - borne high resolution infrared touch screen based on FPGA ＋ DSP architecture are studied. The hardware design of the touch screen, the design of FPGA and GUI, and the DSP algorithm based on Lagrange interpolation are expounded in detail. For the special purposes of the space - borne infrared touch screen, its reliability design is analyzed; the systematic performance test of such touch screen completely assembled is conducted. The test results show that the system is simple and reliable, stable in operation, with high screen resolution; it can meet the special needs of aerospace instrumentation products.

关 键 词：航天仪表 人机交互 红外触摸屏 拉格朗日插值 可靠性 系统性能 DSP算法 FPGA GUI 

分 类 号：TH7[机械工程—仪器科学与技术] TP216.1[机械工程—精密仪器及机械]