本系统以STC89C53单片机为控制核心，通过与DS1302和DS18B20通信获取实时时间和实时环境温度，并将得到的数据处理后通过LCD12864液晶屏显示出来，同时通过ISD1760进行语音报时以及闹铃提醒。功能按键可以选择功能，调整时间等。因此本设计可分为以下模块：单片机模块、显示模块、实时时间计算模块、实时环境温度采集模块、语音报时模块、电源模块、按键模块和PM2.5检测模块。-This system STC89C53 microcontroller core, through communication with the DS1302 and DS18B20 Get real time and real-time ambient temperature, and the data obtained was processed through LCD12864 LCD displays, through ISD1760 voice timekeeping and alarm reminder. Function keys to　and adjust time. So the design can be divided into the following modules: SCM module, display module, real-time calculation module, real-time environment temperature acquisition module, voice broadcast module, power module, button module and PM2.5 detection module.