摘要
MCS-51系列单片机构成温度检测系统。系统由8031单片机构成主机系统,采用常用的ADC0809芯片做A/D转换,由74LS138译码器做系统的地址译码电路,选用与51系列单片机配用的可编程并行接口8155做并行接口的扩展,驱动三位数码显示器LED。本系统只要求对采集后的数据转换为温度值显示、超越温度极限值时做红色闪烁显示。
Temperature monitor system is composed of MCS-51 series single chip machines. It is made up of 8031 single chip machines as driving system, of ADC 0809 chip cards as a/D transformers, of 74LS 138 coder as system address code interpreting circuit. Workable programs matching with 51 series chip machines will be selected and connected with parallel interface 8155 for combining mouth expansion. The 3 place digital displayer LBD will be driven up. This system requires only the received data be transferred into temperature degree display and when beyond this temperature range occurred, red light will be blinking on the display.
出处
《天津成人高等学校联合学报》
2002年第4期96-97,共2页
Journal of Tianjin Adult Higher Learning
