Abstract: A method and a system for switching from grid-connected to grid-disconnected, and a power conversion system are provided. The method includes determining whether a power grid is abnormal based on a power grid parameter obtained when a PCS is grid-connected and operates in a current source mode, turning off a switching cabinet if the power grid is abnormal, switching from a current source mode to a voltage source mode, sending a command to instruct a grid-connected/grid-disconnected switch to switch from a grid-connected loop to a grid-disconnected loop, controlling an output parameter to smoothly transit from an abnormal parameter value recorded when the power grid is abnormal to a rated parameter value, and supplying power to a load according to the rated parameter value. In this way, seamless switching from grid-connected to grid-disconnected can be achieved, thereby ensuring stability of power supply.

Abstract: Aspects of the invention provided a video processing method, a video playing method, devices thereof, and a storage medium. The video processing method is applied to a terminal device and can include that a video-frame tagging operation is detected during recording of a video. The video-frame tagging operation can tag a video frame in a recorded video at different times during recording of the video. The video frame can be tagged at different times during recording of the video according to the video-frame tagging operation. A final recorded video is generated based on the tagged video frame and an untagged video frame. The video frame is tagged through the detected video-frame tagging operation and the final recorded video is generated, so that a wonderful moment in the video can be rapidly located based on the tag of the video frame during video playback, and user experience may be improved.

Abstract: The invention relates to a method for lane-changing prediction of a target vehicle, the method including: receiving a velocity and a position of the target vehicle; respectively obtaining, based on the velocity and the position of the target vehicle, a first lane-changing probability and a second lane-changing probability of the target vehicle by using a first machine learning model and a second machine learning model; and determining a possibility of lane changing of the target vehicle based on the first lane-changing probability and the second lane-changing probability, the first machine learning model and the second machine learning model being pre-trained and being different from each other. The invention further relates to a device for lane-changing prediction of a target vehicle, a computer storage medium, and a vehicle.

Abstract: This application relates to a lane edge extraction method and apparatus, an autonomous driving system, a vehicle, and a storage medium. The lane edge extraction method includes the steps of: receiving tracking edge points, about lane edges, of an immediately preceding frame of an edge image sequence; determining observation edge points, about the lane edges, of a current frame of the edge image sequence; continuing and correcting the tracking edge points of the immediately preceding frame based on the observation edge points of the current frame, to obtain temporary tracking edge points of the current frame; fitting a lane edge curve based on the temporary tracking edge points; and excluding outliers from the temporary tracking edge points based on the lane edge curve, to form tracking edge points of the current frame. The method can improve the stability and accuracy of lane edge extraction.

Abstract: A method and a system for switching from grid-connected to grid-disconnected, and a power conversion system are provided. The method includes determining whether a power grid is abnormal based on a power grid parameter obtained when a PCS is grid-connected and operates in a current source mode, turning off a switching cabinet if the power grid is abnormal, switching from a current source mode to a voltage source mode, sending a command to instruct a grid-connected/grid-disconnected switch to switch from a grid-connected loop to a grid-disconnected loop, controlling an output parameter to smoothly transit from an abnormal parameter value recorded when the power grid is abnormal to a rated parameter value, and supplying power to a load according to the rated parameter value. In this way, seamless switching from grid-connected to grid-disconnected can be achieved, thereby ensuring stability of power supply.

Abstract: Aspects of the invention provided a video processing method, a video playing method, devices thereof, and a storage medium. The video processing method is applied to a terminal device and can include that a video-frame tagging operation is detected during recording of a video. The video-frame tagging operation can tag a video frame in a recorded video at different times during recording of the video. The video frame can be tagged at different times during recording of the video according to the video-frame tagging operation. A final recorded video is generated based on the tagged video frame and an untagged video frame. The video frame is tagged through the detected video-frame tagging operation and the final recorded video is generated, so that a wonderful moment in the video can be rapidly located based on the tag of the video frame during video playback, and user experience may be improved.

Abstract: The present disclosure relates to systems and methods for carpooling. The systems may perform the methods to obtain a first transaction request associated with a first transportation service of a first service receiver at a first time point; obtain a second transaction request associated with a second transportation service of a second service receiver at a second time point; obtain service provider information of a service provider; determine an assignment strategy associated with combining the first transportation service and the second transportation service into a third transportation service according to at least one of the first transaction request, the second transaction request, or the service provider information; and send the assignment strategy to at least one of the first service receiver, the second service receiver or the service provider.

Abstract: Aspects of the invention provided a video processing method, a video playing method, devices thereof, and a storage medium. The video processing method is applied to a terminal device and can include that a video-frame tagging operation is detected during recording of a video. The video-frame tagging operation can tag a video frame in a recorded video at different times during recording of the video. The video frame can be tagged at different times during recording of the video according to the video-frame tagging operation. A final recorded video is generated based on the tagged video frame and an untagged video frame. The video frame is tagged through the detected video-frame tagging operation and the final recorded video is generated, so that a wonderful moment in the video can be rapidly located based on the tag of the video frame during video playback, and user experience may be improved.

Abstract: Described are techniques for use in connection with providing data protection. A storage resource for which data protection is provided by a data protection service may be identified. One or more criteria may be specified denoting one or more trigger conditions for providing data protection by the data protection service, wherein, responsive to an occurrence of any of the one or more trigger conditions, first processing may be performed by the data protection service to protect the storage resource. The one or more criteria may include a first criterion identifying a first amount of data change that has to occur with respect to the storage resource. Notification may be received regarding an occurrence of a first of the one or more trigger conditions. Responsive to receiving the notification, the first processing may be performed by the data protection service.

Abstract: A method and apparatus are provided for managing images. According to an example of the method, when an aggregation instruction for a plurality of images is detected, the images are aggregated to obtain an image group. The image group include similar images satisfying, for example, an aggregation condition. A group tag of the image group is determined, and the image group is displayed based on the group tag.

Abstract: The present disclosure relates to systems and methods for carpooling. The systems may perform the methods to obtain a first transaction request associated with a first transportation service of a first service receiver at a first time point; obtain a second transaction request associated with a second transportation service of a second service receiver at a second time point; obtain service provider information of a service provider; determine an assignment strategy associated with combining the first transportation service and the second transportation service into a third transportation service according to at least one of the first transaction request, the second transaction request, or the service provider information; and send the assignment strategy to at least one of the first service receiver, the second service receiver or the service provider.