Abstract: A method and an apparatus for detecting device anomaly are provided. The apparatus including a database configured to store a plurality of electric power features; a measurement module configured to measure electric power of a device to generate electric power information; a judgment module connected to the database and the measurement module, configured to judge whether the device is abnormal based on the plurality of electric power features and the electric power information; and a detection module connected to the judgment module, configured to detect operation states of a plurality of elements in the device to generate a plurality of state signals when the judgment module judges that the device is abnormal; wherein, the judgment module further judges whether each element of the plurality of elements is abnormal based on the plurality of state signals, the electric power information, and the plurality of electric power features.

Abstract: Architecture and method of hybrid P2P/client-server for data transmission involve using a P2P grouping method to determine the data transmission mode being a P2P mode or a client-server mode by an original source, for a plurality of peers connected to the original source. The original source further divides the plurality of peers into a P2P group and a client-server group, and dynamically determines the respective number of peers and the upstream bandwidth for the two groups. Thereby, during a data transmission procedure, it may achieve a performance balance among the propagation delay, restriction of upstream bandwidth for data sources, network throughput and system loading.