The third chapter emphasized several kinds of typical mode handling ups events such as executing command files , dialing voice - phone , sending message and email , making a beep and closing computer etc . several kinds of remotely monitoring ups project based on network technique , modem technique , wireless communication technique etc , have been analyzed in the fourth chapter 第三章著重討論了ups監控軟件中幾個關鍵事件的處理,包括執行命令文件、撥打語音電話、發送電子郵件、發出蜂鳴聲告警、關閉計算機程序等的設計。