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1030results about How to "Save memory space" patented technology

Implementation method of skinned skeletal animation

ActiveCN104021584AOvercoming seam problemsRealistic effectAnimationJoint problemMathematical Calculus
The invention discloses an implementation method of skinned skeletal animation. The implementation method comprises the following steps: A, constructing a skeleton model and a skinned mesh model which constitute a role model; B, determining a skeleton which influences the mesh vertexes on the skinned mesh model, and determining the influence weight according to a geometrical relationship and a physical relationship between the skeleton and the vertexes; C, carrying out calculus of interpolation between each two adjacent key frames according to a key frame sequence of skeleton movement, which is stored in a role model file, and determining new position and new orientation of each skeleton at certain moment; and D, calculating new position and new orientation of each vertex under a world coordinate system according to skeleton index and corresponding influence weight which influence each vertex and are stored in each vertex on the skinned mesh model, and thus achieving skinned skeleton animation. According to the implementation method disclosed by the invention, the joint problem in skeletal animation is solved, the effect is real and vivid, and is more flexible compared with that of vertex animation, and little memory space is occupied while a favorable animation effect is finished; the skinned skeletal animation can be constructed more easily and rapidly.
Owner:WUXI FANTIAN INFORMATION TECH

Method and device for clearing progresses of mobile terminal

The invention provides a method and a device for clearing progresses of a mobile terminal. The method comprises the steps of establishing a white list for the process of the mobile terminal; carrying out screen locking and monitoring service at backstage; judging whether a screen locking message is received or not, wherein if the screen locking message is received, the next step is carried out, if the screen locking message is not received, the screen locking and monitoring service is carried out continuously; reading the progress which is in running; comparing the progress with the white list and judging whether the progress belongs to the white list or whether the progress is a key progress, wherein if the progress belongs to the white list or the progress is the key progress, no processing is carried out, if the progress does not belongs to the white list or the progress is not the key progress, the progress is cleared; judging whether all progresses which is still in running are read, if all the progresses are still in running are read, the method is ended, if the all the progresses still running are not read, the name of the next progress is obtained, and the step for reading the progresses still in running is carried out again. And then automatic clearing of progresses left at the backstage of the mobile terminal is achieved, and storage space of the mobile terminal is released, and running speed of the mobile terminal is improved. In addition, the invention further provides a device for clearing the progresses of the mobile terminal.
Owner:BEIJING QIHOO TECH CO LTD +1

Three-dimensional vector real-time dynamic stacking technique based on LOD (Level of Detail) transparent textures

The invention discloses a three-dimensional vector real-time dynamic stacking technique based on multiple LOD (Level of Detail) transparent textures. The three-dimensional vector real-time dynamic stacking technique comprises the following steps of: firstly, drawing various vector layers on the transparent textures of corresponding plotting scales respectively in an internal memory through data pre-processing, automatically carrying out block cutting on the vector layers, then saving the vector layers in a disk as an LOD pyramid data storage structure, and establishing a mapping relation with a same-level terrain and an image data block; and secondly, in a real-time terrain rendering and roaming stage, loading the transparent textures of vectors of the corresponding layers through dynamic selection, stacking the vector layers into the same level of image data block according to an established Alpha passage, and realizing the real-time stacking of the vector layers in the three-dimensional terrain based on an internal memory multi-passage texture blending technology. According to seamless visualization of high-resolution vector map data and a digital elevation model, the effect of the high-resolution vector map data and the digital elevation model in spatial information expression and analysis can be enhanced. According to the technique, the real time stacking of multilayer vector data in the rendering and roaming stage of a large-scale three-dimensional terrain scene is realized, and the dynamic interactive screening of the vector layers is supported.
Owner:北京峰盛博远科技股份有限公司

Wind generator power optimization system and method based on drift correction

The invention relates to a wind generator power optimization system based on drift correction. The system comprises a data acquisition module, a power simulation module, a wind direction offset diagnosis module and a control module. The data acquisition module is used for collecting real-time data of operation of a draught fan, and storing the real-time data to form historical data. The power simulation module is used for reading the historical data, screening the historical data, establishing a balanced data set according to the screened data and establishing a power model according to the balanced data set. The wind direction offset diagnosis module generates control information according to the received power model and the real-time data and sends the control information to the control module. The control module adjusts the drift angle of the draught fan according to the received control information. In addition, the invention further provides a wind generator power optimization method based on drift correction. According to the wind generator power optimization system and method based on drift correction, the drift angle can be diagnosed and adjusted in real time, the service life of a wind generator set is prolonged, and the operation safety factor is improved.
Owner:风脉能源(武汉)股份有限公司

Electronic parking braking method

The invention discloses an electronic parking braking method. The method comprises the following steps of: first, parking braking, namely transferring prestored air pressure in an air reservoir to brake chambers of each wheel by controlling an active air supply electromagnetic valve to realize the parking braking; and second, releasing braking, namely when a road section is a straight road surface, simultaneously releasing a drive wheel and a driven wheel of a controlled vehicle once; and when the road section is a downhill road section or an uphill road section, adopting a corresponding control strategy according to the rotating situations of each wheel of the vehicle, and releasing the air pressure in the brake chambers of each wheel of the controlled vehicle separately by utilizing a pressure maintaining effect of an antilock brake system (ABS) electromagnetic regulating valve. The electronic parking braking method has a reasonable design, low investment cost, high intelligence degree and good use effect, is convenient to operate, and solves the practical problems of high technical requirements on drivers, brake force transfer gap of mechanical system, great difficulties in starting operation on low-adhesion coefficient road surface and ramp, poor use effect and the like in a conventional mechanical parking braking system.
Owner:XIAN KING TRUCK ELECTRON
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