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The Scalable Coherent interface for real time (SCI/RT) TRAIN protocol was analyzed. Then a simulation model was built based on the OPNET™ software. The functions of model had been described. A 16 nodes ringlet had been simulated and the results prove the correctness of simulation model.
Multi-processor Systems on Chip (MPSoCs) execute multiple applications concurrently. These applications may belong to different domains, i.e., may have firm-, soft-, or non-real time requirements. A composable system simplifies system design, integration, and verification by avoiding the inter-application interference. Existing work demonstrates composability for applications expressed using a single...
Navigation systems/services have become commonplace and people's reliance on them for mobility is continuously increasing. Modern navigation systems/services are sophisticated tools offering a variety of features for navigation assistance and guidance in many geographic areas. The real-world navigation environments in navigation systems/services are modeled as maps allowing computations that assist...
Background reconstruction plays an important role in many applications like video surveillance, motion analysis. Traditional Adaptive Gaussian Mixture Model will lose target when deal with arbitrary-long stationary object. In this paper, a novel method for detecting this kind of object is proposed to improve the performance of Adaptive Gaussian Mixture Model. Parameter restoration is designed to deal...
According to the different time constraints for simulation tasks, a multi-level distributed real-time simulation platform was proposed, on which hardware layer was mainly introduced to solve rigorous real-time tasks. The distributed simulation framework under centralized management was given. Then, FPGA and DSP hardware boards were well designed. Especially, reflective memory network and bottom hardware...
This paper bases on the observation and research results of oceanography, comes up with a method of ocean simulation that based on GPU. With the development of the hardware, specifically the high development of GPU and its high speed computing power make GPU a new research hotspot. The paper uses FFT algorithm to generate height map, makes use of GPU to improve realism of ocean, and OpenGL is used...
The objective of this study is to show the applications of the simulation implementation of QNX identified model combining with Matlab/Simulink platform, QNX C/C++ compiler and QNX real-time operating system. The HIT/DLR Hand II dexterous hand QNX real-time simulation model is generated by the Simulink platform and QNX C/C++ compiler link files. Moreover, this model can be implemented in the QNX real-time...
The classic W4 theory is recognized as an importance branch of the moving object detection field because it can simply and effectively describe a background model, calculate the result very quickly. But we find that this theory has two disadvantages: the first is the definition of the stationary pixels, the second is the background updating criterion when some foreground moving object is fused in...
Palpation of soft tissues helps to diagnose varying diseases within the tissues. Using a phantom, the current method of training palpation lacks for feedback of the training. Similar to a robot-assisted surgical system, a virtual reality (VR) system could be potential for such training due to its interactive nature. In such a VR system, studies revealed the observation that the human perception of...
MPC design methods have found wide acceptance in industrial appLications and have been studied by academia. This paper presents a modified MPC algorithm that can appLied in real time operating system. By adding a new fuzzy strategy to MPC algorithm, we can control how and when to calculate the real time data, so we can increase or decrease calculation time with different conditions. When appLied this...
Building correct software systems is commonly accepted as both important and difficult. To achieve this, one has to address two basic issues: (i) offer suitable abstractions to formally specify specific classes of systems, (ii) allow the formal analysis of systems built using those abstractions. In this paper we review our results in this direction: we have proposed Object-Based Graph-Grammars (OBGGs)...
The electric industry is gaining experience with innovative price responsive demand pilots and limited roll-outs to customers. One of these pilots is investigating real-time pricing signals to engage end-use systems and local distributed generation and storage in a distributed optimization process. Attractive aspects about the approach include strong scalability characteristics, simplified interfaces...
The model-based face recognition approach is based on constructing a model of the human face, which is able to capture the facial variations. The basic knowledge of human face is highly utilized to create the model. In this paper, we try to address and review the approaches and techniques used in the last ten years for modeling the human face in the 3D domain. Our discussion also shows the pros and...
This paper presents a Field Programmable Gate Array (FPGA) based real-time digital simulator for power electronic apparatus based on an realistic device-level behavioral model. A 3-level 12-pulse Voltage Source Converter (VSC) fed induction machine drive is implemented on the FPGA. The VSC model is computed at a fixed time-step of 12.5ns allowing an realistic representation of the IGBT nonlinear switching...
Formal methods are mathematically-based techniques for the specification, development and verification of software and hardware systems. The term has been applied to a range of notations, theories and tools. As the recent history shows, there is no doubt that some of these rigorous methods have already had a significant impact on practical applications of computing. Moreover, formal methods continue...
To construct the largest power simulation model with real time digital simulators (RTDS), assignment of the computing resource is an important issue to make the model feasible. For automatic computing resource assignments, the interesting idea of subgraph isomorphism is proposed. Computing units (racks) are connected with communication wires, whereas the power grid is connected with electrical lines...
A new algorithm is proposed to solve the issue of dynamically changing tracking window size in Mean-shift progress. Firstly, the algorithm detects feature points in the target area of current and previous frames using SURF. Epanechnikov kernel function is introduced to increase the weights of feature points in the central area. After matching feature points in two frames, we can calculate the target...
Real-time segmentation of moving regions in image sequences taken from a static camera is a basic task typically used in surveillance system. This paper presents an improved codebook modeling strategy in real-time application avoiding high computational complexity and memory burden. The basic codebook algorithm is improved by constructing another layer to distinguish the type of the codeword and matching...
This paper just points out such problems so as to improve the safety of network environment. On the condition of multi-agent, according to the combination of the characteristic of plan recognition theory and distributed network environment technology, it can achieve that this model could be validly used in the distributed network environment by designing plan recognition model and applying fuzzy set...
Stream computing is an emerging computational model for performing complex operations on and across multi-source, high volume data ?ows. Given that the deployment of the model has only started, the pool of mature applications employing this model is fairly small, and therefore the availability of workloads for various types of applications is scarce. Thus, there is a need for synthetic generation...
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