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This paper presents the A-Diakoptics methodology (Diakoptics based on actors) for the high performance simulation of microgrids. Microgrids are clusters of loads and microsources that operate within a single controllable system, which provides electricity and heat to its local area even if they get separated from the distribution system. Several commercial solutions are addressing this topic using...
We develop and describe some algorithms dedicated to people characteristic movement type detection using ultra wide band radar. Derived methods are implemented in real time system where breath detection and its basic parameters e.g. frequency and depth are estimated. We present also some crucial details of software implementation where we deal with radar signal acquisition and processing in real time...
3D imaging capable devices have been available on the market for a few years now and the availability of 3D contents is also picking up. However, 3D contents available for viewing is not growing fast enough to meet the demand. To compensate for such a problem, most 3D imaging devices are equipped with 2D to 3D conversion function. Also, common 3D contents available are mostly produced with 2 view...
With the process of non-functional properties research on real-time systems, resource estimation and analysis of real-time systems become a hotspot. Process Algebra is a formal method fitting for analyzing the functional properties of real-time systems, but it can not analyze the resource properties. Resource Timed Process Algebra (RTPA) proposed in this paper can handle it efficiently by extending...
This paper is an attempt to reveal the untapped immense power of the GNU Radio - an open source software, in control and monitoring systems, both real time applications and class-room demonstrations. GNU Radio has already gained wide acceptance and glory in communication and signal processing. As a novel attempt to bring the controlling capability of GNU Radio to limelight, an experiment for temperature...
As for the graphical modeling software of current domestic power system, it used mostly to be the stand-alone edition or based on C/S (client-server) mode. Compared with the B/S (browser/server) mode, there are some shortcomings in software installation, upgrade and maintenance. This paper aims at developing the graphical modeling software of power system, which is based on the B/S mode, making most...
In view of that the current security system cannot quickly respond to remote warning, a remonitoring system based on STM32 and GSM/GPRS technology was developed. The alarm signal is sent to the mailbox or the user's mobile phone. The actual application results show that the system is stable, fast to response, high in performance and may be widely used in the family and enterprise.
Modern real-time embedded systems often require the capability of switching between operating modes to adapt in dynamically changing environments. The development of such real-time multi-modal systems fundamentally relies upon effective schedulability analysis. Recently, researchers have proposed serial schedulability analysis algorithms for multi-modal systems that account for mode changes at both...
Obtaining realistic three-dimensional (3D) representations of objects is one of the key research topics in Computer Vision. The applications of such researches, in fact, are multifaceted and range from serious scenarios, such as medical imaging systems, to leisure ones, including entertainment systems which support filmmaking (e.g., 3D movies such as Avatar), gaming (e.g., Microsoft Kinect) and music...
Because of the fact that Unigraphics(UG) is employed extensively as 3D molding software, integration of RCS calculation into UG will provide more advantages especially for both target shape design and it's stealth performance analysis, but the edge extraction and the edge scattering evaluation are complex in the traditional method. This paper proposes a simple method for edge scattering evaluation...
Component-Based Development (CBD) reduces development time and effort by allowing systems to be built from pre-developed reusable components. Partitioning the behavior into a set of major operational modes is a classical approach to reduce complexity of embedded systems design and execution. In supporting system modes in CBD, a key issue is seamless composition of pre-developed multi-mode components...
ECG signals received from a long distance call through mobile phone network need to be displayed instantaneously, smoothly and recorded. Due to non-uniform load and inherent time delay in the network the real-time display is incoherent. This will cause some discomfort or inaccuracies in observing the waveform at the critical moment, and then more or less affect the quality of work performed by the...
As the smart grid becomes reality, software architectures for integrating legacy systems with new innovative approaches for grid management are needed. These architectures must exhibit flexibility, extensibility, interoperability and scalability. In this position paper, we describe our preliminary work to design such an architecture, known as GridOPTICS, that will enable the deployment and integration...
This paper introduces ProxiScientia, a visualization tool that provides awareness support to developers, as they engage in collaborative software development activities. ProxiScientia leverages streams of fine-grained events that are generated by team members as they interact with software artifacts in their development environments. The main goal of the tool is to make each developer aware of coordination...
A distributed fuzzy system is a real-time fuzzy system in which the input, output and computation may be located on different networked computing nodes. The ability for a distributed software application, such as a distributed fuzzy system, to adapt to changes in the computing network at runtime can provide real-time performance improvement and fault-tolerance.
This paper deals with the management of a SoC-based current controller using an efficient Real-Time Operating System (RTOS). To accelerate the services of this operating system, a Real-Time Unit (RTU) was developed in VHDL and associated to the RTOS. It consists in hardware operating system that moves the scheduling and communication process from software RTOS to hardware. Thus, a significant acceleration...
This paper presents the realization of a modular software architecture that is capable of handling the complex supervision structure of a multi degree of freedom open architecture and reconfigurable micro assembly workstation. This software architecture initially developed for a micro assembly workstation is later structured to form a framework and design guidelines for precise motion control and...
Component-based software has been proposed as a methodology for improving software reuse and has increasingly been adopted by robot software developers. At the same time, robot systems typically have real-time performance requirements and performance gains can often be obtained by multi-threading. It is challenging, however, to create correct multi-threaded software, especially when standard mutual...
Based on the high level swimming teams of Tongji University This essay introduces a specific training information system used in swimming which was built by the skill of electrommunication, network communication and database technology. In this system, using the ZigBee transmission technology, a wireless real-time timer technique was adopted and communication master station was used. As a result,...
System response time is a key element in hard real time systems. In classical Real Time Operating Systems (RTOS) based on software schedulers, overhead and jitter are a major problem when the number of tasks and the rate of context switches are high. Increased values for those parameters over admissible values can lead to performance degradation, increased power consumption or even deadline misses...
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