Abstract: The present application relates to an optical image stabilization camera module, comprising: a lens; a photosensitive assembly having a photosensitive chip; a first driving part adapted to drive the lens to translate in x-axis and y-axis directions; and a second driving part comprising a second basic portion and a second movable portion, the second driving part having four side surfaces, wherein each side surface is provided with two interlaced SMA wires, and both ends of each SMA line are connected to a fixed end of the second basic portion and a fixed end of the second movable portion, respectively; each of the fixed ends is located at a corner area of the second basic portion or the second movable portion.

Abstract: The present invention relates to a driving structure for use in an optical actuator, including: a first driving part, which is suitable for mounting a lens and driving the lens to move transversely in the x-axis and y-axis directions; and a second driving part, which is suitable for driving a photosensitive chip to move transversely in the x-axis and y-axis directions, where the lens and the photosensitive chip are configured to be driven simultaneously and to move in opposite directions. Also provided in the present invention are a corresponding photographing method, an optically stabilizing photographing module, and a corresponding assembly method. The present application increases the stabilization travel and the stabilization response speed of the photographing module.

Abstract: The present application relates to an optical image stabilization camera module, comprising: a lens; a photosensitive assembly having a photosensitive chip; a first driving part adapted to drive the lens to translate in x-axis and y-axis directions; and a second driving part comprising a second basic portion and a second movable portion, the second driving part having four side surfaces, wherein each side surface is provided with two interlaced SMA wires, and both ends of each SMA line are connected to a fixed end of the second basic portion and a fixed end of the second movable portion, respectively; each of the fixed ends is located at a corner area of the second basic portion or the second movable portion.

Abstract: A novel high-precision rigid-flexible coupling rotating platform includes a foundation, a rigid bearing, a bearing sleeve, a core rotating platform, a rotating driver and a coder; the bearing sleeve is fixed on the foundation; the rigid bearing is in rotatable drive connection with the core rotating platform, and connected with the foundation through the bearing sleeve; an upper surface of the core rotating platform is provided with a plurality of groups of flexible hinges; when the rotating driver applies a driving force to rotate the core rotating platform, the driving force elastically deforms the flexible hinge rings. The flexible hinges are used and disposed on the upper surface of the core rotating platform; without disassembling the whole rotating platform, a corresponding group of flexible hinges can be changed but an assembling relationship between other groups of flexible hinges cannot be broken.

Abstract: Provided in the present invention a method for evaluating the mixing effect of a CO2 oil-displacing and mixing agent, characterized in measuring the volume expansion of a CO2-oil interface when pressure is gradually increased, drawing a mixed-phase percentage-pressure curve (?-P curve), and evaluating the mixing effect of the CO2 oil-displacing and mixing agent by means of comparing the characteristics of the ?-P curve. Further provided in the present invention is a method for initially screening a CO2 oil-displacing and mixing agent.

Abstract: A multi-scale deep supervision based reverse attention model is provided and includes an input end, a multi-scale feature learning module, an attention mechanism module, a reverse attention mechanism module, a deep supervision module, multiple loss functions, multiple average pool layers, multiple linear layers and multiple branches. The reverse attention mechanism module as provided can alleviate the problem of feature information loss caused by attention mechanisms, and part of the modules can be discarded in the testing phase, thereby improving the testing efficiency.

Abstract: A novel high-precision rigid-flexible coupling rotating platform includes a foundation, a rigid bearing, a bearing sleeve, a core rotating platform, a rotating driver and a coder; the bearing sleeve is fixed on the foundation; the rigid bearing is in rotatable drive connection with the core rotating platform, and connected with the foundation through the bearing sleeve; an upper surface of the core rotating platform is provided with a plurality of groups of flexible hinges; when the rotating driver applies a driving force to rotate the core rotating platform, the driving force elastically deforms the flexible hinge rings. The flexible hinges are used and disposed on the upper surface of the core rotating platform; without disassembling the whole rotating platform, a corresponding group of flexible hinges can be changed but an assembling relationship between other groups of flexible hinges cannot be broken.

Abstract: Provided in the present invention a method for evaluating the mixing effect of a CO2 oil-displacing and mixing agent, characterized in measuring the volume expansion of a CO2-oil interface when pressure is gradually increased, drawing a mixed-phase percentage-pressure curve (?-P curve), and evaluating the mixing effect of the CO2 oil-displacing and mixing agent by means of comparing the characteristics of the ?-P curve. Further provided in the present invention is a method for initially screening a CO2 oil-displacing and mixing agent.

Abstract: A method provided by the present invention for transmitting overhead information, includes dividing and reforming overhead information into at least two overhead parts, inserting the at least two overhead parts into overhead bytes of at least two corresponding data frames, and transmitting the at least two overhead parts via the at least two data frames which are microwave frames. Overhead information transmitting apparatus and overhead information receiving apparatus are also provided by the present invention. With the method and apparatus of the present invention, the channel bandwidth resources occupied by the overhead bytes or each microwave frame are greatly reduced. If the saved channel bandwidth is used for performing the error correction code on the transmitted information, the code gain is improved and the sensitivity requirement on the receiver is reduced so that the cost of a microwave transmitting system is reduced eventually.

Abstract: A method provided by the present invention for transmitting overhead information, includes dividing and reforming overhead information into at least two overhead parts, inserting the at least two overhead parts into overhead bytes of at least two corresponding data frames, and transmitting the at least two overhead parts via the it least two data frames which are microwave frames. Overhead information transmitting apparatus and overhead information receiving apparatus are also provided by the present invention. With the method and apparatus of the present invention, the channel bandwidth resources occupied by the overhead bytes or each microwave frame are greatly reduced. If the saved channel bandwidth is used for performing the error correction code on the transmitted information, the code gain is improved and the sensitivity requirement on the receiver is reduced so that the cost of a microwave transmitting system is reduced eventually.