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A Network for Experimentation (NfExp) is, typically, a large (regional, national or international) and specialized testbed (GENI, PlanetLab, FIBRE, other) developed in order to support the experimentation of new protocols, services and applications mostly in the context of Future Internet (FI). In effect, a Network for Experimentation allows an experimenter to configure instantiate, run and collect...
The Internet of Things paradigm is gaining momentum as the number of interconnected devices is continually increasing. The paper approaches the interoperability of these devices that is still a challenge because of different communication protocols and data representation formats. Rather than working independently, these individual devices would collaborate and exchange structured information instead...
This paper focuses on development of PID controller for a single tank level control system using concepts of industrial automation. The idea behind this work is to replace the conventional PID controller available in the level control trainer system with a high end Programmable Logic Controller. The motive behind doing this is to obtain a complete understanding of the changes in the dynamics of the...
The big changes in indoor illumination caused by the introduction of LED-based devices may have effects on the health and well-being of the persons that are still under study. From the point of view of flicker, these changes further highlight the inadequacy of the current international standard. With the aim of providing a contribution to a matter that involves several scientific disciplines, new...
An efficient supervision system requires not only a highspeed system, but also high reliability (i.e. fault tolerant systems), high flexibility (generic design) and high scalability (distributed design). Industrial applications have revealed these absolute needs that distinguish modern architectures from the known ones. Marrying top-level researches from three distinct domains — automation, distributed...
This study is focused on the development of an instrument for the measurement of learning engagement. It evaluates engagement as a function of students' attitudes displayed in form of concentration on or distraction from learning based on the pedagogy being employed by the teacher. The instrument, Code for Students' Performance Measures (COSPERM) is designed to provide a measure of student engagements...
This paper is based on the "China Equipment and Education Resource System" (CERS) project, which aims at sharing large instruments and their related services. Web Service, which adopts service-oriented architecture, can provide loosely coupled, scalable and portable network modules for distributed applications. In this paper, an improved service oriented architecture to enhance the usability...
The complexity of installations in the oceans to carry out observations on specific processes and for detecting long-term trends have grown significantly in the past years. This applies also to the type and number of sensors that are in use in observing systems. In these days, sensors shall be compatible to different platforms that are in use like floats, gliders or moorings, and accordingly also...
The objective of the European FP7 project NeXOS (Next generation Low-Cost Multifunctional Web Enabled Ocean Sensor Systems Empowering Marine, Maritime and Fisheries Management) is to develop cost-efficient innovative and interoperable in-situ sensors deployable from multiple platforms to support the development of a truly integrated Ocean Observing System. Therefore, several sensor systems will be...
With the continuous development of industry, the traditional industrial production mode is gradually replaced by automated machines. Industrial automation instrumentation and control technology have become the main force in industrial production. This paper designs a kind of wireless transmission and data acquisition intelligent instrument based on ARM9 processor which is a new generation of direct-current...
Student resistance is often cited as a major barrier to faculty's use of active learning, but there are few research-based strategies for reducing this barrier. To address the need for such strategies, we have initiated a project to identify specific, research-based strategies to significantly reduce student resistance to faculty's use of active learning practices. In this work-in-progress paper,...
The use of Field Programmable Gate Array (FPGA) hardware in Test Program Set (TPS) development is highly beneficial due to its ability to be reconfigured on the fly to simulate various ATE instruments or unique signals generated from discrete hardware components. FPGA hardware can by utilized for creating an array of synthetic instruments; and by utilizing a FPGA, a single piece of hardware can be...
Traditional test equipment typically offers a fixed set of pre-determined functionality that is exposed to the test engineer by one or more fixed application programming interfaces. When building a general purpose test system using traditional test equipment, it is common to include a separate piece of test equipment for each supported protocol or bus type. As a result, these purpose-built test systems...
Upon its first release, the FDI standard (field device integration, IEC 62769) [1] will be the most widely accepted standard for field device integration in automation industry [6]. Although it is a very new standard, the underlying technology re-use protects investments in customer installed base on an even wider scale. Still, FDI-related work has mostly been focused on the support of field instruments...
Os centros de controle de motores (CCMs) de baixa tensão são numerosos, consumindo grande parte da interação do operador e manutenção de um sistema de distribuição de potência industrial. A ampla interação humana com estes circuitos de baixa tensão (menos de 1 kV) torna um CCM de baixa tensão um local de risco potencial significativo. O grande número de circuitos do CCM de baixa tensão resulta em...
Scientific applications need to handle large volume of data-intensive computations and such computational load varies over time. We propose a new load balancing strategy for cloud environments handling those applications. Our strategy exploits the advantages of both push and pull approach to achieve load balancing. Gossip protocol is used to collect the resource statistics from a small set of cluster...
SpaceFibre is a high-speed data-link technology being developed by the University of Dundee for ESA to support spacecraft onboard data-handling applications. SpaceFibre operates at 2.5 Gbits/s, can run over fibre optic or electrical media, provides galvanic isolation, includes Quality of Service (QoS) and Fault Detection Isolation and Recovery (FDIR) support, and provides low-latency signalling. It...
Transmission Control Protocol is one of the key protocol of Transport Layer in TCP/IP Protocols suite. While IP transmits data between individual computers on the Internet, TCP transfers data between actual applications running on the system. TCP provides connection oriented and reliable data stream. TCP achieves this reliability by assigning a sequence number to each segment it transmits and requiring...
It is necessary to test the logging instrument during its development and production. Generally, these test tasks need to be completed in the experimental well, which will not only bring a lot of inconvenience for researchers and site workers, but also waste a lot of manpower and material resources. The embedded multifunctional down hole test system can replace experimental well to complete simulation...
We present Dylog, a dynamic logging facility for networked embedded systems. Dylog employs several techniques to enable lightweight and interactive logging. First, Dylog uses binary instrumentation for dynamically inserting or removing logging statements, enabling interactive debugging at the runtime. Second, Dylog incorporates an efficient storage system and log collection protocol for recording...
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