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507 results about "Core function" patented technology

Endoscopic minimally invasive surgery simulation training method and system

ActiveCN102254476ARealize force feedbackRealize the virtual sense of touchEducational modelsSimulation trainingMedical model
The invention provides an endoscopic minimally invasive surgery simulation training method which comprises the following steps of: (1) constructing and editing an endoscopic minimally invasive surgery medical model; (2) constructing a system foundation component library by using a fundamental algorithm; (3) constructing a core algorithm by using the system foundation component library to realize the core function of a 3D platform system; (4) constructing a medical model description language; (5) calling the medical model, constructing a medical scene, and simulating various actions of an endoscopic minimally invasive surgery; and (6) simulating various operations by using endoscopic minimally invasive surgery instruments in a driving virtual environment of an operating table, and outputting a feedback force through an operating rod of a data receiving and feedback signal processing driving operating platform to realize force feedback and virtual touch, so that the simulation training is more vivid. Meanwhile, the invention provides an endoscopic minimally invasive surgery simulation training system. By using the method and the system, force feedback and virtual touch effects can be provided, and high fidelity and a good simulation training effect can be achieved.
Owner:GUANGZHOU SAIBAO LIANRUI INFORMATION TECH

Mechanism and method for flexible coupling of processes in an object oriented framework

In an object oriented computer system, a framework mechanism defines a mechanism that separates the ability to complete a process from the results of that process. A task is defined in the framework in terms of a sequence of processes. The framework includes a coupling mechanism for flexibly coupling any of these processes together in any suitable order to define the run-time behavior of the framework without changing the core functions of the framework. The coupling mechanism includes the definition of a processable interface and a processing interface. A particular process generally takes detail information as input and produces detail information that is used in a subsequent process. The detail information input into a process is said to be "processable", and therefore implements the "processable" interface. The detail information output from a process is said to be "processing" detail that is output to the next process, and therefore implements the processing interface. Thus, an object that uses "shippable" detail information as input through its processable interface generates corresponding "shipping" detail information for each shippable detail, which is output to one or more subsequent processes via the processing interface. A particular processable can be associated with any processing interface that supports the processable interface. In other words, any process-related class in the framework can be coupled to any other process-related class, provided one class has a processing interface that corresponds to the processable interface of the subsequent class. In this manner, classes in the framework mechanism can be flexibly coupled together in any suitable order or fashion to accommodate a great variety of different configurations. The framework mechanism therefore provides a high degree of implementation while maintaining the ability to achieve a high degree of customization.
Owner:IBM CORP

Track switch fault diagnosis method and system based on support vector machine

The invention provides a track switch fault diagnosis method and system based on a support vector machine. The method comprises the steps of: obtaining training samples, wherein the training samples include historical fault current power curves of track switch actions corresponding to a plurality of kinds of track switch fault types; according to factors such as expert experience and fault mechanisms, extracting morphological characteristics of the training samples; selecting a core function of a support vector machine classifier, and determining the parameters of the core function according to the morphological characteristics of the training samples so as to train the support vector machine classifier; collecting current power curves of the track switch actions; and classifying the current power curves according to the support vector machine classifier, and determining whether the track switch is faulted and the fault type of the track switch according to the classifying result. By adopting the method, personnel monitoring and maintenance cost of the track switch is effectively lowered, whether the track switch is faulted and the fault type of the track switch can be automatically and accurately determined, the monitoring of the track switch is convenient, and the maintenance of the track switch is convenient.
Owner:TSINGHUA UNIV

Public sentiment data real-time collecting method and system based on distribution

The invention discloses a public sentiment data real-time collecting method and system based on distribution. The method comprises the following steps that firstly, a public sentiment data website class library is established, and crawling data items are classified and defined; secondly, a data acquisition website list is transmitted to a data collection server, the server allocates corresponding crawlers to circularly crawl data in a dormant mode; thirdly, crawled source webpage data is subjected to label analysis, the position of a target data item is positioned, and the target data item is obtained; fourthly, an obtained result data item is encapsulated into a uniform format of a corresponding class; fifthly, the encapsulated data is stored into a corresponding database; sixthly, a monitoring log file is generated. According to the public sentiment data real-time collecting method and system based on distribution, the architecture is advanced, a factory mode is used as a main design mode of the system, new examples can be quickly generated, system core functions such as browser assess, log generating, data encapsulation, agent setting and queue setting are encapsulated, the expandability and transportability of the system are enhanced, and the reusability of codes and the maintainability of the system are improved.
Owner:SOUTHWEST PETROLEUM UNIV

Accelerated QC-LDPC (Quasi-Cyclic Low-Density Parity-Check Code) decoding method based on GPU (Graphics Processing Unit) framework

The invention provides an accelerated QC-LDPC (Quasi-Cyclic Low-Density Parity-Check Code) decoding method based on a GPU (Graphics Processing Unit) framework. The method comprises the steps of: taking a CPU (Central Processing Unit) as a controller, calculating code word information of an input code by using a mother matrix of the input code, placing the code word information in a constant storage of a GPU, and starting a GPU core function running command after all initializing processes are finished; and reasonably configuring various parameters of the GPU, realizing a whole decoding system in each GPU parallel thread block, and finishing LDPC decoding based on a layered revising minimum sum algorithm by the cooperation among threads. According to the method, the universal accelerated decoding on QC-LDPCs with different code rates under different GPU platforms can be realized according to the characteristics of LEPC words in a QC structure; a plurality of LDPC decoders which can be realized and optimized on the GPU in a parallelization manner, and can independently run on the GPU in the parallelization manner can be provided; and the decoding efficiency is improved greatly, so that the accelerated QC-LDPC decoding method can be effectively applied to a simulated and real-time decoding system.
Owner:SHANGHAI JIAO TONG UNIV
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