With the popularization of digital hospitals, higher requirements are put forward for the construction of hospital information rooms, such as online booking, electronic medical record cards, remote diagnosis, and others. All these processes must be guaranteed under the operation scheme of a highly-reliable power supply scheme. Once the power is cut off, the operation of the whole hospital will be stopped so that huge political and economic losses will be produced, and even the life safety of patients will be threatened. The scheme can be used for information room, data center, network interaction point, and others of the hospital.