Abstract: Provided is a method for retrieving a lost-of-contact mobile terminal. The method is applied to a first control terminal, and includes: receiving a first lost-of-contact distress signal a first mobile terminal forwarded by a server; displaying a help seeking interface; sending, in response to a help-retrieving instruction, a first help-retrieving request to the server; and receiving a first confirmation help message from a second control terminal from the server, wherein the first confirmation help message indicates that the second control terminal agrees to help retrieve the first mobile terminal.

Abstract: A mobile device includes a primary battery and a secondary battery, and the mobile device further includes: a power supply control module and a main control module connected to each other, where the power supply control module is respectively connected to the primary battery and the secondary battery; and the main control module is configured to control the primary battery to supply power to the mobile device when it is determined that the primary battery and the mobile device are in the power-on state; and control a power supply of the mobile device to be switched from the primary battery to the secondary battery when it is determined that the primary battery and the mobile device are in the power-off state.

Abstract: A super-wet surface is a polypropylene surface, on which a hydrophilic side group is grafted, having a micro-nano structure. The super-wet surface is at least super-hydrophilic and does not contain an initiator residue. The super-wet surface is prepared by grafting, in the absence of an initiator, by means of microwave irradiation, a monomer for forming a side group, on the polypropylene surface, as a grafting base, having a micro-nano structure. In the preparation of the super-wet surface, the molecular weight of polypropylene does not decrease after grafting, there is no residual monomer or initiator residue, and the super-wetting effect of the obtained surface is lasting and stable. The super-wet surface can be used in bonding, spraying, oil-water separation, water treatment, biology, medicine and energy fields.

Abstract: The present application discloses an inter-device communication method, a camera, and a display, for use in providing a method for direct communication between a camera and a display. The camera comprises a controller, a camera body, a memory, and a communication module. The controller is configured to perform the following steps: acquiring an image from the camera body and performing image processing on the image to determine configuration information of the image; determining ID code information of the image according to identification information of the camera body and the configuration information, wherein the ID code information is used for representing the identification information of the camera body and the configuration information of the image; and sending the image and the ID code information to a display, so that the display performs image processing on the image according to the ID code information and then displays the image.

Abstract: A virtual reality interaction method includes: collecting body posture information of a user in a real environment by using a posture tracking device, where the posture tracking device includes a motion detection unit provided corresponding to a position of a target skeletal muscle, and the motion detection unit is configured to determine a joint motion angle of a corresponding joint; collecting first position information of the user's head in the real environment by using a laser radar component, and collecting head posture information of the user's head in the real environment by using an inertial measurement unit component; and configuring the body posture information, the head position information, and the head posture information as full-body posture information of the user, and mapping a virtual object corresponding to the user in a virtual reality environment according to full-body posture information.

Abstract: Provided is a method for adjusting backlight, including: when rendering a current image, determining backlight data corresponding to the current image; when transmitting the current image, updating, upon transmitting the current image for a first preset duration, the backlight data corresponding to the current image to a backlight driver chip; and when the updating of the backlight data corresponding to the current image is completed, controlling the backlight driver chip to turn on a backlight source, and adjusting backlight brightness based on the backlight data of the current image.

Abstract: Provided is a method for processing video data. The method includes: acquiring a second outline of at least one object in an (n+1)th image frame of a to-be-compressed video data group based on a fuzzy algorithm; determining a motion vector of the at least one object according to the second outline and a first outline of the at least one object in an nth image frame of the to-be-compressed video data group; acquiring compressed video data according to the motion vector and a start image frame of to-be-compressed video data; and sending the compressed video data to an apparatus for displaying images.

Abstract: Display control apparatus, display control method and display device are provided, belonging to the field of displaying. The apparatus includes: Mini ISP module configured to obtain original image data of camera sensing component in real time, to obtain first image data by performing lens correction, defective pixel correction, noise filtering and format conversion on the original image data; compensation ISP module, configured to obtain second image data by performing lens correction, defective pixel correction, noise filtering, format conversion and first processing on the original image data; display control module, configured to process the first image data to obtain image data for displaying before receiving the second image data, to process the second image data to obtain image data for displaying after receiving the second image data and to control display screen to display according to the image data for displaying. The delay in image data transmission can be reduced.

Abstract: Provided in the present disclosure are a display apparatus, an image signal processing apparatus, a collection apparatus and a display system. The display apparatus includes: a plurality of pixels, which are arranged in an array; a plurality of scan lines, which are respectively coupled to the plurality of pixels and extend in a row direction; a plurality of data lines, which are respectively coupled to the plurality of pixels and extend in the row direction; a plurality of control lines, which are respectively coupled to the plurality of pixels and extend in a column direction; a data bus, which is coupled to the data lines; a plurality of first switch circuits, which correspond to one data line; and a plurality of second switch circuits, which correspond to the pixels.

Abstract: A flux-cored wire for arc welding, including a steel sheath filled with flux, where the wire contains, relative to a total mass of the wire, Cr: 16.0 to 22.0 mass %, Ni: 6.0 to 11.0 mass %, Mn: 0.7 to 2.6 mass %, Si: 0.1 to 1.1 mass %, Zr: 0.2 to 0.8 mass %, Fe: 45.0 to 65.0 mass %, TiO2: 5.0 to 9.0 mass %, SiO2: 0.1 to 2.0 mass %, ZrO2: 0.5 to 3.0 mass %, and Bi: less than 0.0020 mass %. Where by mass %, a Si content is denoted by [Si] and a Zr content is denoted by [Zr], a value of parameter A expressed by A=[Si]+2×[Zr] satisfies 1.4 to 2.5.

Abstract: An exemplary Cascaded H-bridge or Modular Multilevel Converter/Inverter are disclosed that employ a H-bridge cell or half-bridge cell that includes a linking switch additionally employed between two H-bridge cells, i cell and i+1 cell, to allow a parallel number of cells to operate together. Each of the H-bridge cells includes the standard four switches and additionally the linking switch between two H-bridge cells. The system can beneficially have improved system conversion efficiency due to better DC energy source utilizations, e.g., for improved efficiency of converters that convert DC energy to AC energy. The cascading H-bridge cells (or half-bridge cells) can be configured as a charge pump converter, bidirectional 3-phase inverter, among other topologies.

Abstract: The present invention relates to a picture display method. In the present invention, a target database for storing at least one candidate three-dimensional model and a feature matrix corresponding to each candidate three-dimensional model is created, wherein the candidate three-dimensional model is obtained on the basis of performing incomplete-part completion and/or color restoration on an initial three-dimensional model obtained by means of scanning by a picture scanning device. Therefore, after a picture including a target object is collected and a target feature matrix of the target object is determined on the basis of the picture including the target object, a target three-dimensional model, which matches the target object and has been subjected to incomplete part completion and/or color restoration, can be acquired from the target database on the basis of the target feature matrix of the target object, so as to display the target three-dimensional model.

Abstract: Systems, methods, and computer-readable media are provided for redundantly storing and authenticating event related video data from one or more cameras using a video recording manager device. Additional copies of event related video data are persisted across various storage devices including any combination of internal camera storage, remote storage, and one or more storage mediums associated with the video recording manager device. The stored video data is augmented with authentication metadata to preserve the authenticity such that the video data is suitable as evidence.

Abstract: Provided are a mixed reality display method, a mixed reality device, and a storage medium. The method includes: after receiving a mixed display signal, tracking the eyeballs of a user by means of an eyeball tracker, and determining a gaze point of the user on a display screen; determining, according to a correspondence between the gaze point and a sub-display region in the display screen, the sub-display region the user gazes; determining at least one first image sensor according to a correspondence between the sub-display region and an image sensor in an image sensor array, and adjusting the at least one first image sensor; and superimposing and rendering an environment image output by the image sensor array and a virtual image, and obtaining and displaying an MR image.

Abstract: Provided is a submerged arc welding method that produces little fume, has good weldability, and is suitable for welding high-Mn-containing steel materials to be used in cryogenic environments. The method includes welding with a combination of a wire having a predetermined chemical composition and flux having a basicity [BL] of 1.5 to 2.4, while adjusting a welding heat input according to a groove cross-sectional area. In this way, a weld metal with high strength and excellent cryogenic impact toughness where the 0.2% proof stress at room temperature is 400 MPa or more and an absorbed energy (vE?196) in the Charpy impact test is 28 J or more can be easily manufactured.

Abstract: Systems, devices, and methods are provided for a two-piece body-worn camera comprising a camera unit that may be docked into a docking unit. The camera unit may be a small form factor capture device that may be mounted to a user's body to capture video. Upon capturing video, the camera unit may be docked with the docking unit for recharging an internal battery and for the transfer of the captured video to the docking unit. Once transferred to the docking unit, the video can be wirelessly transferred to cloud-based storage for long-term storage.

Abstract: A mobile device includes a primary battery and a secondary battery, and the mobile device further includes: a power supply control module and a main control module connected to each other, where the power supply control module is respectively connected to the primary battery and the secondary battery; and the main control module is configured to control the primary battery to supply power to the mobile device when it is determined that the primary battery and the mobile device are in the power-on state; and control a power supply of the mobile device to be switched from the primary battery to the secondary battery when it is determined that the primary battery and the mobile device are in the power-off state.

Abstract: A system and method for legible capture of vehicle identification data includes video cameras and a computer. Recording attributes such as gain, gain shutter speed, and white balance are adjusted throughout ranges to maximize the likelihood of capturing at least one frame in which characters, such as those on the license plate, are legible. Successful capture of a legible frame may trigger storage of the data, while unsuccessful capture may trigger additional scans.

Abstract: A decoding method, a data processing method, an information generation method, a mobile terminal, a control terminal, an electronic system, and a non-transitory computer-readable storage medium are provided. The decoding method includes: parsing combined data that is received, the combined data being data obtained by combining image data captured by a mobile terminal and mobile terminal information corresponding to the mobile terminal; and in response to obtaining, by the parsing, an extended data bit string corresponding to the mobile terminal information, parsing extended data encoding information corresponding to the mobile terminal information from the combined data, and decoding the extended data encoding information to obtain the mobile terminal information.

Abstract: The present disclosure provides a flow guide cylinder lifting assembly, including a flow guide cylinder lifting component disposed on a water-cooling lateral arm and a lifting bolt, wherein the lifting bolt is disposed in the flow guide cylinder lifting component, a lower end of the lifting bolt extends downward through an opening of an upper heat-insulating cover of the flow guide cylinder, a lifting nut is disposed at an upper end of the lifting bolt, and the lifting nut is matched to the lifting bolt to raise or lower the flow guide cylinder.