本文主要介绍了基于AT89C51的测温系统，采用温度传感器DS18B20和LCD1602，可实现对温度的采集与显示，并可任意设定上下限报警温度，自动报警。-This article mainly introduces the temperature measurement system based on AT89C51, adopts temperature sensor DS18B20 and LCD1602, can realize the temperature collection an