960位开关量信号检测系统接口电路

The Interface Circuit of 960 Bit Switching Quantity Signal Detecting System

本文介绍适用于APPLE-Ⅱ微型计算机的960位开关量信号检测系统接口电路、它可用于安全,防盗等方面的开关量信号的检测,记录等。此接口电路由硬件与软件有机结合而成。用巡回检测的方法,检测范围较宽;软件较简炼,执行速度快;电路较简单,性价比较高。

The object of this paper is to introduce interface circuit of 960 bit switching quantity signal system which is suitable for microcomputer Apple Ⅱ . This device can be applied in recording and testing in security. The interface circuit system is a combination of hardware and software, By using travel detecting, the testing range is rather wide, it has character such as simple software, quick operation, and high quatity with deap price.