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With the rapid development of information technology, the computer has been more and more important in our lives. Especially it makes our working, learning and entertainments, and even consumptions dependent on the computer increasingly because of the popularity of network. However, the computer has brought us a lot of convenience, while it also makes us face with a variety of security risks. Computer...
With the increasing number of technology areas using Virtual Machine (VM) platforms, challenges exist in Virtual Machine migrating from one physical host to another. This paper presents the design and implementation of a novel Hierarchical Copy Algorithm (HCA) for Xen live VM migration. Based on the memory characteristics which will be transferred, the measuring time of working sets is shifted to...
This paper describes how to configure MathWorks Real-Time Workshop to automatically build a control system application for an unsupported embedded computer platform. The application can be generated with a single command, allowing for quick iterations of testing and debugging. The I/O interface and control algorithm of the application is described in a Simulink model. In this paper an AVR32 embedded...
In this paper, the implementation of a Command Governor (CG) strategy on a real-time computing system is described for the supervision of a laboratory four-tank test-bed. In particular, the real-time architecture has been developed on the RTAI/Linux operating system kernel and the CG module has been implemented in C++ on a general purpose off-the-shelf computing unit. An accurate model of the the...
Real-time windows target (RTWT) and xPC Target are two MATLAB/Simulink toolboxes used for real time simulation, prototyping, testing, and deploying real-time systems, but the application is greatly limited due to lack of enough hardware drivers. Another problem is that drivers of one toolbox are incompatible with those of the other, so different models should be created for the same task, which is...
When a host computer is attacked, files in the host computer are more or less unauthorizedly modified so as to achieve attacker's goal. Based on trusted computing technology, we present a trusted computer based approach for sensitive binary files protection. Different from traditional methods, our approach does not based on "condition-code", "intrusion-rule" and so on. It is checksum-based:...
Real-Time Simulation, for example hardware-in-the- loop simulation(HILS), is an effective method for studying complex system, and the MATLAB/ Simulink/Real-Time Windows Target (RTWT) toolbox provides a cheap platform for such work, but the application is greatly limited due to lack of enough hardware drivers. Based on the kernel provided by MATLAB/Simulink/RTWT toolbox, this paper studied some key...
This paper describes the open and flexible architecture of a stereo vision system prototype, using open source software. The system is designed for teleoperated robots and includes a four degrees of freedom stereo head mechanism, a pair of high performance digital cameras, a head tracker and a head mounted display. All processes for the head control and video streaming are performed in Linux-based...
This paper tries to explain the rationales of two different key infrastructures of real time abstraction interface (RTAI): real time hardware abstraction layer (RTHAL) and adaptive domain environment for operating systems (ADEOS), and also makes a comparison with measurement to help understanding the difference between them. Our study shows that ADEOS as a virtual resource layer can intercept hardware...
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