说明：  以智能温度传感器DS18B20为温度测量元件，将读出的温度值直接送给单片机进行处理，然后通过LED模块显示，当温度超过允许范围时，单片机控制启动声光报警器。
(An intelligent temperature sensor DS18B20 device for temperature measurement, the temperature will be read out directly to the microcontroller for processing, then the LED display module, when the temperature exceeds the allowable range, single-chip control startup sound and light alarm.)