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One key goal of Vehicular Ad-hoc Networks (VANETs) is to provide sufficient Quality-of-Service (QoS) for real-time safety applications. These applications facilitate wireless broadcast warning messages between neighboring vehicles to inform drivers on time about dangerous situations like accidents. The IEEE 1609.4 standard in DSRC defines a MAC layer implementation for multichannel operations in VANETs...
The growing adoption of automated data collection systems in the transit industry, such as automated fare-collection (AFC) and automated vehicle location (AVL), is providing operators with extensive data about the state of the system and its usage by passengers. The paper proposes a framework for using automated data to support the various functions, both planning and real time, and demonstrates its...
The majority of recent large-scale blackouts have been caused by voltage instability. A prompt on-line assessment of voltage stability for preventive corrective control of electric power systems is one of the key objectives for Control centers. The use of classical approximation methods alone is complicated. Therefore, several modified methods combined with machine learning algorithms enabling security...
This paper presents a design and implementation techniques to construct a universal microcontroller board based on realtime measurement and control applications. It is not only designed for realtime applications, but is also designed for supporting many modern WiFi devices that utilize TCP/IP protocol over internet networks. It means the proposed system fully supports many Internet-of-Things (IoT)...
This paper presents the design and implementation techniques for an embedded device and computer cooperative system. The system is mainly designed for realtime industrial measurement, analysis, and control applications. The embedded device, the microcontroller, can stream realtime data to the computer up to 11520 bytes per second. In the embedded device side, four channels of ADCs and PWMs are implemented...
This paper presents a novel tandem human-machine cognition approach for human-in-the-loop control of complex business-critical and mission-critical systems and processes that are monitored by Internet-of-Things (IoT) sensor networks and where it is of utmost importance to mitigate and avoid cognitive overload situations for the human operators. The approach is based on a decision making supervisory...
Current control systems and emulation systems (Hardware-in-the-Loop, HIL or Processor-in-the-Loop, PIL) for high-end power-electronic applications often consist of numerous components and interlinking busses: a micro controller for communication and high level control, a DSP for real-time control, an FPGA section for fast parallel actions and data acquisition, multiport RAM structures or bus systems...
On-board computer (OBC) is a very important component in any On-Board Control System to perform guidance and control along with critical operations during the mission, should be designed to execute several tasks that need to be executed in deterministic precise order and for accurate periods of time. Real-time control systems require instantaneous execution of commands either through hardware or software...
This paper presents a DC-DC power converter control scheme and system architecture for batteries which are connected in parallel in order to maintain State-Of-Charge (SOC) balancing between batteries without the need for additional circuitries and their associated controllers. When the battery cells or battery packs are connected in parallel, it is desired to maintain SOC balancing during both charging...
This paper investigates the control of a diffusion process by utilizing real-time information. More specifically, we allow the network administrator to adjust the allocation of control resources, a set of treatments that increase the recovery rate of infected nodes, according to the evolution of the diffusion process. We first present a novel framework for describing a large class of dynamic control...
The photovoltaic market has been growing at a fast rate in the last two decades, and in 2014 reached a global capacity of about 180GW. Due to the increasing penetration level, large-scale energy storage systems that can compensate for its fluctuations become increasingly important. In case of off-grid systems, suitable energy storage is naturally a necessity. In areas with favorable geographical properties,...
A standard serial 6-DOF industrial robot was equipped with an electronic control unit designed especially for educational purposes. A fast Ethernet LAN with UDP communication allows a real-time control from a PC, which runs a widely used scientific software. Even inverse and direct kinematics are computed on the PC and hence are available for education. The configuration allows interactive reaction...
The progressive spreading of Distributed Resources in the Low Voltage section is leading to a new paradigm previously unaddressed, since it is the less controlled section of the entire electric network. The inclusion of Information and Communication Technologies is a key factor towards its proper management. In addition, studies show that the progressive development of microgrids will lead to an improvement...
The National Spherical Torus Experiment (NSTX) is currently finishing a multi-year upgrade (NSTX-U) that vastly increased the capabilities of the system. These upgrades required an improved coil protection system to prevent immediate damage as well as fatigue over time to the magnetic coils that control the plasma. Because the action taken by the DCPS affects many other systems, NSTX-U will additionally...
NSTX used MDSplus extensively to record data, relay information and control data acquisition hardware. For NSTX-U the same functionality is expected as well as an expansion into the realm of securely maintaining parameters for machine protection. Specifically, we designed the Digital Coil Protection System (DCPS) to use MDSplus to manage our physical and electrical limit values and relay information...
The paper summarises the business oriented approach to reinstrumentation and control improvement projects, based on the need for world class process plant profitability. The paper is illustrated with examples based on experience from a number of problems and projects.
The critical nature of hard real-time embedded systems leads to an increased usage of Model Based Design to generate a correct-by-construction code from a formal specification. If Model Based Design is widely used at application level, most of the low level code, like the device drivers, remains written by hand. Timed Automata are an appropriate formalism to model real time embedded systems but are...
With the current advancement in wireless networks and various technologies implemented for automation, more innovative and improved ideas are developed to build automation systems facilitating remote controlling and monitoring of devices. In this paper, a GSM based wireless home automation system is proposed and deployed which executes its function of controlling and monitoring appliances remotely...
We present Co Adapt, a runtime that coordinates accuracy-aware applications, which expose accuracy/performance tradeoffs, with power-aware systems, which manage power/performance tradeoffs. This is a challenging problem because decisions made at one level affect, and often counteract, decisions made at the other, leading to unpredictable behavior. Prior approaches have coordinated application and...
An important aspect of clinical work, especially in the intensive care unit (ICU) is the vigilant observation of patients' vital data on a various number of monitors and displays to allow for rapid decision-making which is often required in critical conditions. Most often, the presented data cannot be collected and used as a whole to aid the decision making by availability and comparison of all relevant...
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