以AT89S52单片机为核心设计智能火灾报警系统，包括硬件和软件设计两部分。通过温度传感器DS18B20检测现场参数，经过信号调理电路、A/D转换后送入单片机进行数据处理，通过LED显示实现实时显示，并进行声光报警。-AT89S52 microcontroller as the core design of intelligent fire alarm system, including hardware and software design in two parts. Detected by the temperature sensor DS18B20 field parameters, through the signal conditioning circuit, the A/D converter into the microcontroller for data processing, real-time display via LED display and sound and light alarm.