Abstract: A lifting device for building a steel structure hoistway and a method for building a steel structure hoistway. The lifting device includes a lifting mechanism and a crane mechanism. The lifting mechanism includes a bottom platform, a middle platform and a top platform. The crane mechanism is arranged on the top platform of the lifting mechanism, and includes a base and a crane on the base. The base is arranged on the top platform and is rotatable relative to the top platform along a vertical axis, and the hanger frame of the crane is movable between a vertical orientation and an inclined orientation. The lifting mechanism is configured to ascend and descend in the constructed steel structure hoistway, and the crane mechanism is configured to lift building materials, such as steel beams, steel columns, etc., for use in building the steel structure hoistway to their designed installation locations.

Abstract: The present invention relates to data application technologies in the field of video surveillance, and discloses an intelligent playback method for video records based on a motion information and an apparatus thereof. The method comprises the following steps: searching for all motion detection additional information conforming to a time period of a playback request in a hard disc, and storing the motion detection additional information as a motion information in a motion information linked list in terms of a time sequence; obtaining a current playback mode and a current playback time, and looking up a nearest motion information under the current playback mode and the current playback time from the motion information linked list; matching the found nearest motion information with the current playback time; controlling a playback speed according to a matching result, so as to implement an automatic control of an intelligent playback speed.

Abstract: The present invention relates to data application technologies in the field of video surveillance, and discloses an intelligent playback method for video records based on a motion information and an apparatus thereof. The method comprises the following steps: searching for all motion detection additional information conforming to a time period of a playback request in a hard disc, and storing the motion detection additional information as a motion information in a motion information linked list in terms of a time sequence; obtaining a current playback mode and a current playback time, and looking up a nearest motion information under the current playback mode and the current playback time from the motion information linked list; matching the found nearest motion information with the current playback time; controlling a playback speed according to a matching result, so as to implement an automatic control of an intelligent playback speed.