Disclosed are a power failure protection method and device for non-volatile memory, and the method comprises: prior to a power failure, backing up metadata to a first non-volatile memory medium; acquiring the metadata backed up to the first non-volatile memory medium after power is restored; recovering data of a source storage device according to the metadata, wherein the metadata comprises: first storage location information of the data of the source storage device, and second storage location information of data corresponding to the data of the source storage device in a second non-volatile memory medium. The method ensures that metadata is backed up to a first non-volatile memory medium in real time so as to ensure metadata security; if an abnormal systemic power failure occurs, metadata backed up to the first non-volatile memory medium is acquired after power is restored, and then data of the second non-volatile memory medium is recovered to the source storage device according to the metadata, thereby ensuring data security of the source storage device.

A fresh air handling unit for an air conditioner and a fresh air handling unit control method are provided. The control method comprises the following steps: when a fresh air handling unit operates normally, determining whether a return air temperature sensor of the fresh air handling unit is faulty; if so, turning off an indoor unit valve corresponding to the fresh air handling unit, and maintaining operation of a fan motor; determining whether a supply air temperature sensor of the fresh air handling unit is faulty; and if not, obtaining a supply air temperature of the fresh air handling unit, using the obtained supply air temperature as a new return air temperature, and controlling the fresh air handling unit to operate again. The control method of the present invention solves a problem in which the fresh air handling unit is incapable of operating again when the return air temperature sensor of the fresh air handling unit is faulty, improving user experience in using the air conditioner.

A container running acceleration method and system for use with a host device (100), said method comprising: when a plurality of containers operate a shared file system (11), a log file is written into a non-volatile memory (105), wherein said log file is used for recording the operation which said plurality of containers perform on said file system (11); when said host device (100) is started, said non-volatile memory (105) is mapped to a kernel address space of the host device (100).

Provided are a method and apparatus for identifying the state of motion of a human body. The method comprises: arranging in a wearable device a triaxial acceleration sensor and a human-body physical-sign sensor (S110); according to an acceleration signal collected by the triaxial acceleration sensor, determining the human body to be in a walking state, calculating the number of steps taken by the walking body, and calculating the walking pace according to number of walking steps (S120); calculating, according to the physical-sign signal collected by the body physical-sign sensor, the corresponding physical-sign frequency during the process of walking (S130); comparing the calculated walking pace and physical-sign frequency to a pace threshold and physical-sign frequency threshold, respectively; if the walking pace is greater than the pace threshold and the physical-sign frequency is greater than the physical-sign frequency threshold, then determining that the state of motion of the body is a running state and recording the calculated number of walking steps as a number of running steps; otherwise, determining that the state of motion of the body is a walking state and recording the calculated number of walking steps as a number of walked steps (S140). In the present method and apparatus, it is possible to effectively distinguish a walking state and running state from the states of walking.