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2913 results about "Marking out" patented technology

Marking out or layout means the process of transferring a design or pattern to a workpiece, as the first step in the manufacturing process. It is performed in many industries or hobbies although in the repetition industries the machine's initial setup is designed to remove the need to mark out every individual piece.

Network resource personalized recommended method based on ultrafast neural network

InactiveCN101694652ALocal minima boostThere is no local minimum problemSpecial data processing applicationsNeural learning methodsNetwork resource managementLearning machine
The invention belongs to the field of network resource management, relates to the cooperative filtration technique of network resources and discloses a network resource personalized recommended method based on an ultrafast neural network. The network resource personalized recommended method based on ultrafast neural network comprises the following steps: firstly, data preprocessing, reading information from the journal files of a system user and generating a global user interested matrix, exchanging the global user interested matrix into a single user interested matrix of a current user, and then transforming and reducing dimensionality to mark out a training set A1 and a predicting set A2, secondly, model training, building an interest predicting model with single hidden layer neural network SLFN s structure for a target user, adopting ultrafast learning machine technique to carry out training on the training set A1 and getting various connection power values and hidden layer threshold values of the neural network model with single hidden layer, thirdly, prediction recommending, utilizing the obtained predicting model to calculate the scoring values of every resource in the predicting set A2 given by the target user and then recommending the first several resources with highest predicting scores to the target user.
Owner:XI AN JIAOTONG UNIV

Device and method for measuring and correcting distortion of virtual reality displayer

The invention discloses a method for measuring and correcting distortion of a virtual reality displayer. The method includes the following steps that reticle imaging is carried out through an optical system to obtain a distortion grid image; a distortion coefficient of each grid is obtained through calculation according to the corresponding relationship between a vertex coordinate of the corresponding grid and a vertex coordinate of each distortion grid; non-distortion grids A are marked out on the distortion grid image, according to an optical path reversible principle, an object face of the optical system has distortion grids A' corresponding to the grids A, then vertex coordinates of the distortion grids A' are calculated by means of the distortion coefficients and the vertex coordinates of the grids A, and a coordinate look-up table is generated by means of the vertex coordinates of the distortion grids A'; an image to be projected is converted into a pre-distortion image by means of the coordinate look-up table, an image source is input, a pre-distortion image displayed by the image source is imaged, an imaging image is obtained, the imaging image is compared with the pre-distortion image, the image source is adjusted, and correcting of the image source is completed. The invention further discloses a device for measuring and correcting distortion of the virtual reality displayer.
Owner:深圳市安思疆科技有限公司

Relative positioning device for satellite navigation and carrier phase cycle-slip repairing method of device

The invention provides a relative positioning device for satellite navigation and a carrier phase cycle-slip repairing method of the device. A satellite navigation antenna on a base station receives a navigation signal, outputs ephemerides and observed quantities of all satellites through a satellite navigation receiver and sends the ephemerides and the observed quantities to a mobile station; the mobile station receives data sent by the base station and outputs the data to a comprehensive information processing module, a satellite navigation antenna on the mobile station receives the navigation signal and outputs the ephemerides and the observed quantities of all the satellites through the satellite navigation receiver, the comprehensive information processing module performs gross error processing on data output by the base station and the mobile station, carrier phase cycle-slip detection and repairing are finished, a double-difference observation equation is established through carrier phase double-difference processing, the whole-cycle ambiguity is resolved, and relative positioning information is output. With the adoption of the device and the method, the cycle-slip can be detected and repaired in real time, outliers can be marked out in real time, meanwhile, the cycle-slip occurrence frequency can be determined, high-precision relative positioning can be realized, and the availability of a system is guaranteed.
Owner:NO 20 RES INST OF CHINA ELECTRONICS TECH GRP
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