开关量的实用软件处理方法  

Practical Software Method on Status Information

作　　者：何春华 鄢仁成 

机构地区：[1]温州珊溪水利发电厂设备部,浙江温州325304

出　　处：《计算机测量与控制》2005年第4期399-400,共2页Computer Measurement &Control

摘　　要：硬件电路对输入开关量, 键盘量进行去抖处理, 可以满足一般情况的要求, 但是增加了硬件的复杂性。通过软件去抖的方法, 可以弥补硬件去抖的缺陷。提出了一种通过逻辑判断的软件去抖的方法, -同时完成开关量的变化判别处理, 与传统的延时去抖相比具有简单实用, 可靠性高的特点。Through hardware circuit to deal with the status information, the result can fulfill the common demand. However, it is very cost ly for the design. Through the method of software, the shortcoming of hardware circuit can be overcome. A method of logical decision on flutt er-free is presented. The judgement of status information change is accomplished simultaneously. Compared with time delay method, this method has simple, practical and reliable characteristic.

关 键 词：智能化仪器 开关量 实用软件处理方法 单片机 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]