为了提高其检测频率及灵敏度而将爬山搜索算法应用在投射式电容触摸屏感应电极的电容检测上.利用计算机程序的控制以及一定的检测电路,在一高精度的投射式电容触摸屏上实现了普通或改进的爬山搜索算法.对程序运行过程的分析可知,相比于传统的检测方法,采用爬山搜索算法可以将高精度投射式电容触摸屏的检测频率提高几倍,而相对于普通的爬山搜索算法,采用改进的爬山搜索算法还可以提高投射式电容触摸屏的抗局部干扰能力.最后,采用划线法的灵敏度测试也表明,爬山搜索算法可以有效地提高投射式电容触摸屏检测灵敏度.%Aiming at improving the detecting frequency and sensitivity,mountain-climb searching algorithm was used in projective capacitive touch-screen for the capacitance measuring of the sensor-electrodes. With the control of computer programs and some detecting circuits,the ordinary mountain-climb searching algorithm and the optimized one were realized on a precise projective capacitive touch-screen. The analysis of the program running process indicates that,with the mountain-climb searching algorithm,the detecting frequency of a precise projective capacitive touch-screen can be improved for at less several times compared with the tradition detecting methods. Except this,the optimized mountain-climb searching algorithm can also improved the anti local disturb capability of the touch-screen. Test of sensitivity by line-drawing methods also indicates that the mountain-climb searching algorithm can effectively improve the detecting sensitivity of projective capacitive touchscreen.
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