２１自动天气预报答询服务的开展，标志着气象服务由人工逐步走向自动化。但是１２１自动天气预报答询机存在的问题之一就是，在无市电时，答询机不能工作，致使服务中断，影响了气象部门的信誉和效益。购买长延时大型ＵＰＳ作后备电源，可解决上述问题，但投资较大（后备... 21 The implementation of automatic weather forecasting and answering service marks the gradual automation of meteorological services from manual to manual. However, one of the problems with automatic weather forecast answering machine 121 is that when there is no utility power, the answering machine can not work, resulting in interruption of service, affecting the reputation and effectiveness of the meteorological department. Buy long delay large UPS as a backup power supply, to solve the above problems, but the investment is larger (back-up ...