说明：  工业生产过程中常常需要对温度、湿度、压力、流量等各种工艺参数随时进行检测和监控，同时还要将检测到的数据及时传递给上位机，以实现对参数的随机查询，对信息的存储与处理，及时调整控制方案，提高生产效率和产品质量。为此，笔者以89C51单片机作为主控制器设计了一种简单易行的远程数据采集系统
(Industrial production process is often the need for temperature, humidity, pressure, flow and other process parameters at any time for testing and monitoring, but also will detect the data transmitted in a timely manner to the host computer in order to realize on the parameters of random queries for information storage and processing, timely adjustment of control program, improve production efficiency and product quality. To this end, the writer to 89C51 single-chip host controller is designed as a simple Remote Data Acquisition System)