Abstract: The disclosure discloses a method and system for constructing and analyzing a knowledge graph of a wireless communication network protocol, and a device and a medium. The method for constructing and analyzing the knowledge graph of the wireless communication network protocol includes: defining entities and a relation between the entities according to endogenous factors of a wireless communication network protocol, defining a triplet based on the defined entities and the defined relation between the entities, and constructing a knowledge graph of the endogenous factors of the wireless communication network protocol based on the defined triplet; and performing association analysis between any nodes in the knowledge graph to acquire an association relation hidden between the endogenous factors of the wireless communication network protocol.

Abstract: This application discloses a method including a transmit end that generates and sends a physical layer protocol data unit (PPDU), and a receive end that receives the PPDU and parses the PPDU. An enhanced directional multi-gigabit (EDMG) modulation field in the PPDU includes a channel estimation field (CEF), the CEF includes a CEF sequence, and a length of the CEF sequence is m, where m is determined based on a quantity of bonding channels and a quantity of subcarriers included on a channel. When a discrete Fourier transform-spread-orthogonal frequency division multiplexing (DFT-S-OFDM) technology is introduced into a 60 GHz WLAN standard, an applied CEF sequence included in a CEF can be determined, and DFT-S-OFDM transmission is further performed by using the CEF sequence. In this way, a PAPR of a WLAN system can be reduced while frequency division multiplexing for a plurality of users is supported.

Abstract: A high voltage battery cluster, and an overcurrent protection circuit and a switch box of the high voltage battery cluster are provided. The overcurrent protection circuit includes a first fusing module and a second fusing module. Since a withstand current-time curve of the first fusing module is different from a withstand current-time curve of the second fusing module, in a case that an overcurrent fault occurs in a high voltage battery cluster, one fusing module can cause an open circuit in the high voltage battery cluster prior to another fusing module, thereby preventing the high voltage battery cluster from being broken by a large current when an overcurrent fault occurs in the high voltage battery cluster, thus ensuring an electrical safety of the high voltage battery cluster.

Abstract: A control method is provided for controlling an electronic device having a main body. The control method may include: in response to the electronic device being activated and a primary battery being functionally connected to the main body of the electronic device, controlling the primary battery to power the electronic device; and in response to the electronic device being activated and the primary battery being functionally disconnected from the main body of the electronic device, controlling a backup battery to power the electronic device.

Abstract: An image processing method includes obtaining a first YUV image captured by an on-board image acquisition device operating in a log mode, converting the first YUV image to a second YUV image having a same image format as an image captured by the on-board image acquisition device operating in a normal mode, and transmitting the second YUV image.

Abstract: A display device includes a display area configured to display one or more images of a virtual reality (VR) environment or an augmented reality (AR) environment, one or more sensors configured to obtain region-of-interest (ROI) data of a user in response to the user wearing the display device and looking at the one or more images of the VR environment or the AR environment displayed on the display area, and one or more processors. The one or more processors are individually or collectively configured to select one or more ROI zones from a plurality of zones based on the ROI data and effect display of the one or more ROI zones on the display area to the user. The plurality of zones are used to divide the one or more images of the VR environment or the AR environment on the display area.

Abstract: An image encoding method includes: determining N P-frames from a sequence of images, N being a positive integer; for each P-frame, determining a source refreshing region in the P-frames, the source refreshing region being a portion less than a whole region of the P-frame; obtaining reconstructed images corresponding to the source refreshing regions by performing a first encoding on the source refreshing regions; obtaining updated P-frames by updating the source refreshing regions with the reconstructed images; and performing a second encoding on the updated P-frames.

Abstract: A data transmission system includes a transmitting device and a receiving device connected by at least two broadcast channels. The transmitting device is configured to encode a data set to be transmitted, the encoded data set includes at least one data group, the at least one data group includes one or more data packets, and the at least two broadcast channels are configured to transmit the one or more data packets.

Abstract: An image encoding method includes: determining N P-frames from a sequence of images, N being a positive integer; for each P-frame, determining a source refreshing region in the P-frames, the source refreshing region being a portion less than a whole region of the P-frame; obtaining reconstructed images corresponding to the source refreshing regions by performing a first encoding on the source refreshing regions; obtaining updated P-frames by updating the source refreshing regions with the reconstructed images; and performing a second encoding on the updated P-frames.

Abstract: An image encoding method includes determining N P-frames from a sequence of images, determining a source refreshing region in each one of the P-frames, obtaining reconstructed images corresponding to the source refreshing regions by performing a first encoding on the source refreshing regions, obtaining updated P-frames by updating the source refreshing regions with the reconstructed images, and performing a second encoding on the updated P-frames.

Abstract: A control method is provided for controlling an electronic device having a main body. The control method may include: in response to the electronic device being activated and a primary battery being functionally connected to the main body of the electronic device, controlling the primary battery to power the electronic device; and in response to the electronic device being activated and the primary battery being functionally disconnected from the main body of the electronic device, controlling a backup battery to power the electronic device.

Abstract: An image processing method includes obtaining a first YUV image captured by an on-board image acquisition device operating in a log mode, converting the first YUV image to a second YUV image having a same image format as an image captured by the on-board image acquisition device operating in a normal mode, and transmitting the second YUV image.

Abstract: A display device includes a display area configured to display one or more images of a virtual reality (VR) environment or an augmented reality (AR) environment, one or more sensors configured to obtain region-of-interest (ROI) data of a user in response to the user wearing the display device and looking at the one or more images of the VR environment or the AR environment displayed on the display area, and one or more processors. The one or more processors are individually or collectively configured to select one or more ROI zones from a plurality of zones based on the ROI data and effect display of the one or more ROI zones on the display area to the user. The plurality of zones are used to divide the one or more images of the VR environment or the AR environment on the display area.

Abstract: An image encoding method includes determining N P-frames from a sequence of images, determining a source refreshing region in each one of the P-frames, obtaining reconstructed images corresponding to the source refreshing regions by performing a first encoding on the source refreshing regions, obtaining updated P-frames by updating the source refreshing regions with the reconstructed images, and performing a second encoding on the updated P-frames.

Abstract: The present invention provides a method for game data transmission, including: acquiring, by a client upon logging into a server, a session key assigned by the server; encrypting game data with the session key, and submitting the encrypted game data to the server; decrypting and verifying the received game data by the server, and saving the game data if the game data are proved to be valid. The present invention also provides a system, client apparatus, server and mobile terminal including the client apparatus to which the preceding method can apply. The method, system and apparatus of the present invention ensure that the client can transmit game data safely to the server and protect the game data from being tampered with or counterfeited.

Abstract: The present invention provides a method for game data transmission, including: acquiring, by a client upon logging into a server, a session key assigned by the server; encrypting game data with the session key, and submitting the encrypted game data to the server; decrypting and verifying the received game data by the server, and saving the game data if the game data are proved to be valid. The present invention also provides a system, client apparatus, server and mobile terminal including the client apparatus to which the preceding method can apply. The method, system and apparatus of the present invention ensure that the client can transmit game data safely to the server and protect the game data from being tampered with or counterfeited.

Abstract: The invention discloses a method for displaying animation and system thereof, which can implement an attachment of an action animation and a background animation. In the method, the action animation is moved accordingly when the background animation is moved; or the action animation is attached to the background animation after the action animation is moved out of the background animation for a while. In the invention, a configuration file of the animation file can be set in an animation server, so that a client can download the configuration file from an animation server and display the animation file according to a trigger event and the configuration file. In the invention, the music and the animation file can be played together, that is the performing of animations can be consistent with the playing of music. To sum up, the method and system in the invention can display animations in more ways and with high quality.

Abstract: A tank container for transporting and storing liquefied gas, including a tank that includes a cylinder body and two heads arranged oppositely and welded with both ends of the cylinder body; and a frame assembly for fixing and supporting said tank, which includes a front frame and a rear frame fixed at both ends of said tank respectively. The cylinder body has a shell thickness ? substantially equal to: Pc×Di/(2?b/Ks?Pc), wherein, Pc is the calculated pressure of the tank, required by the transported liquefied gas, Di is the inner diameter of the cylinder body, ?b is the maximum tensile strength of material of the cylinder body at a normal temperature, and Ks is a safety factor no larger than 2.6. The tank container is designed through stress analysis methods, the safeness of which has been verified.