Abstract: A computerized simulation validating method for a full-scale distribution network single phase-to-ground fault test is implemented by simulating a full-scale test system with external quantities being controlled to be conformant and validating the full-scale distribution network single phase-to-ground fault test based on a conformance check result between the internal quantities of the field testing and the internal quantities of the simulation testing. The simulation validating method for a full-scale distribution network single phase-to-ground fault test improves normalization and conformance of the full-scale distribution network ground fault test. The computerized simulation validating system, apparatus, and medium for a full-scale distribution network single phase-to-ground fault test also achieve the benefits noted above.

Abstract: Disclosed herein is a method for performing few shot action classification and localization in untrimmed videos, where novel-class untrimmed testing videos are recognized with only few trimmed training videos (i.e., few-shot learning), with prior knowledge transferred from un-overlapped base classes where only untrimmed videos and class labels are available (i.e., weak supervision).

Abstract: The invention provides a pan-tilt-zoom (PTZ) camera, including a pan-tilt unit and a camera unit. The pan-tilt unit includes a first vibration damper plate, a second vibration damper plate, and a shock absorber ball; the camera unit is fixedly disposed on the first vibration damper plate, the shock absorber ball is sandwiched between the first vibration damper plate and the second vibration damper plate, and the shock absorber ball is fixedly connected to the second vibration damper plate; the shock absorber ball is elastic, and when the camera unit is horizontally laid, the first vibration damper plate is out of touch with the shock absorber ball; when the camera unit is subjected to extra load other than gravity, the first vibration damper plate compresses the shock absorber ball. The pan-tilt unit of the invention is simple in structure and safe in use.

Abstract: The invention provides a pan-tilt-zoom (PTZ) camera, including a pan-tilt unit and a camera unit. The pan-tilt unit includes a first vibration damper plate, a second vibration damper plate, and a shock absorber ball; the camera unit is fixedly disposed on the first vibration damper plate, the shock absorber ball is sandwiched between the first vibration damper plate and the second vibration damper plate, and the shock absorber ball is fixedly connected to the second vibration damper plate; the shock absorber ball is elastic, and when the camera unit is horizontally laid, the first vibration damper plate is out of touch with the shock absorber ball; when the camera unit is subjected to extra load other than gravity, the first vibration damper plate compresses the shock absorber ball. The pan-tilt unit of the invention is simple in structure and safe in use.

Abstract: The present disclosure provides a model aircraft, comprising a body, a wing and a vertical tail. At least one first male female buckle is provided between the wing and the body. The wing is configured to be securely mounted on the body by the first male female buckle. At least one second male female buckle is provided between the vertical tail and the body. The vertical tail is configured to be securely mounted on the body by the second male female buckle. In the disclosed model aircraft, the wing and the vertical tail can be removably assembled on the body by multiple male female buckles. It is structurally simple; it is convenient to disassemble the aircraft during storage to save space, and it is convenient and fast to assemble the aircraft during use, thereby improving the ease of assembly.

Abstract: A mobile terminal system for providing instant messaging to a third-party application includes a mobile terminal having one or more processors and memory for storing one or more programs, wherein the one or more programs, when executed by the one or more processors, cause the mobile terminal to perform the instructions of acquiring an application ID (appid) and a software development kit (SDK) from an instant messaging open platform by the third-party application; registering the third-party application at the instant messaging open platform using the acquired appid and SDK when the third-party application initiates; providing an open application programming interface (API) to the third-party application via the instant messaging open platform; and transmitting information between the instant messaging open platform and the third-party application via the open API.

Abstract: This disclosure provides an aircraft vehicle, which comprises a circuit board, and at least one power component mounted on said circuit board. The at least one power component comprises a rotor, a drive unit and a fixing sleeve. Said drive unit is electrically connected to said circuit board and drives the rotor to rotate. Said fixing sleeve comprises a receiving space with an opening at a top. Said fixing sleeve comprises at least one first stopping piece and at least one second stopping piece projected on an outer surface of the fixing sleeve. Said drive unit is accommodated in the receiving space and is secured in the fixing sleeve. Said circuit board comprises at least one positioning hole corresponding to the power component. The fixing sleeve is configured to pass through the positioning hole so that the circuit board is retained between the first stopping piece and the second stopping piece. This disclosure also provides a fixing sleeve.

Abstract: This disclosure provides an aircraft vehicle, which comprises a circuit board, and at least one power component mounted on said circuit board. The at least one power component comprises a rotor, a drive unit and a fixing sleeve. Said drive unit is electrically connected to said circuit board and drives the rotor to rotate. Said fixing sleeve comprises a receiving space with an opening at a top. Said fixing sleeve comprises at least one first stopping piece and at least one second stopping piece projected on an outer surface of the fixing sleeve. Said drive unit is accommodated in the receiving space and is secured in the fixing sleeve. Said circuit board comprises at least one positioning hole corresponding to the power component. The fixing sleeve is configured to pass through the positioning hole so that the circuit board is retained between the first stopping piece and the second stopping piece. This disclosure also provides a fixing sleeve.

Abstract: Described herein is a vertical take-off and landing aircraft comprising: an upper enclosure comprising a first upper arm and a second upper arm; a lower enclosure comprising a first lower arm and a second lower arm; wherein the first upper arm and the first lower arm comprise a first upper buckle and a first lower buckle, respectively; wherein the second upper arm and the second lower arm comprise a second upper buckle and a second lower buckle, respectively; wherein the first upper buckle engages the first lower buckle and the second upper buckle engages the second lower buckle, thereby securing the upper enclosure to the lower enclosure.

Abstract: Described herein is a vertical take-off and landing aircraft comprising: an upper enclosure comprising a first upper arm and a second upper arm; a lower enclosure comprising a first lower arm and a second lower arm; wherein the first upper arm and the first lower arm comprise a first upper buckle and a first lower buckle, respectively; wherein the second upper arm and the second lower arm comprise a second upper buckle and a second lower buckle, respectively; wherein the first upper buckle engages the first lower buckle and the second upper buckle engages the second lower buckle, thereby securing the upper enclosure to the lower enclosure.

Abstract: A mobile terminal system for providing instant messaging to a third-party application includes a mobile terminal having one or more processors and memory for storing one or more programs, wherein the one or more programs, when executed by the one or more processors, cause the mobile terminal to perform the instructions of acquiring an application ID (appid) and a software development kit (SDK) from an instant messaging open platform by the third-party application; registering the third-party application at the instant messaging open platform using the acquired appid and SDK when the third-party application initiates; providing an open application programming interface (API) to the third-party application via the instant messaging open platform; and transmitting information between the instant messaging open platform and the third-party application via the open API.