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Networked Music Performance (NMP) constitutes a class of ultra-low delay sensitive applications, allowing geographically separate musicians to perform seamlessly as a tele-orchestra. For this application type, the QoS indicator is the mouth-to-ear delay, which should be kept under 25 milliseconds. The mouth-to-ear delay comprises signal processing latency and network delay. We propose a strong collaboration...
Dissolved oxygen directly affects the growth status of fishes in intensive aquaculture, thus we set up a prediction model to determine the future changing trend of dissolved oxygen. The dissolved oxygen prediction model we proposed was based on the least squares support vector regression (LSSVR) model with fruit fly optimization algorithm (FOA) to find optimal parameters (γ and σ) of LSSVR. Because...
In model-driven learning, simulation of Business Process is a key step for improving the learners's skills and enhancing teaching performance. In this paper, we provide the architectural design and the main functionalities of a model-based learning simulation framework. The main objectives of the proposed framework are: i) enable user-friendly learning simulation with a strong support for collaboration...
The problem of control design formation is considered with a modification use of the local quadratic criterion, which allows to keep a part of vector component of the given state. Kalman's filter is used in order to assess the state of the object model The results of control system simulation for non-stationary model of the ship are given while changing course.
Driver State Monitoring Systems (DSMS) play a crucial role in determining whether the driver is prepared to take control of the vehicle or not. In this paper we present a cost-efficient, context-aware system, based on smartphones, which supports the driver in the driving task. This is through monitoring the driver attention and drowsiness, in addition to detecting pedestrians and vehicles. The detection...
During the last decade the integration of smart devices into humans' lives has witnessed an exponential increase. This has led to a new paradigm namely Cyber-Physical-Social Systems (CPSS) which consists of cyber components (computer systems) physical components (controlled objects) and social components (humans and their interactions). Although social components are playing a main role in CPSS their...
Paper deals with digital generating quadrature wave, their measurement and monitoring using Lab View virtual instrumentation system. Beside classical triangular digital quadrature oscillator there are investigated rectangular- and meander-type waveforms and also three-phase Clarke transformed orthogonal waveforms. There is shown — using digital computation of total harmonic distortion — that meander-type...
A novel procedure for automated determination of air change rates from measured indoor CO2 concentrations is proposed. The suggested approach builds upon a new algorithm to detect exponential build-up and decay patterns in CO2 concentration time series. The feasibility of the concept is proved with a test run on synthetic data that shows a good reproduction of the previously defined air change distribution...
Elasticity is the key feature of cloud computing to scale computing resources according to application workloads timely. In the literature as well as in industrial products, much attention was given to the elasticity of virtual machines, but much less to the elasticity of containers. However, containers are the new trend for packaging and deploying microservices-based applications. Moreover, most...
This paper develops a methodology for the optimal monitor placement of voltage unbalance, based on a limited number of monitors. As voltage unbalance causes overheating problems in both power system equipments and user devices, it is expected that this long term problem can be fully observed and mitigated if necessary. In this paper, by analyzing the importance of every bus against the monitoring...
In this paper we calculate probabilistic estimates for the size of an area a single unmanned aerial vehicle (UAV) can expect to monitor when tracking multiple objects. The objects are assumed to move according to a linear velocity model with Gaussian process noise. We use a Kalman filter to estimate the position of the objects. By using the covariance matrix of the Kalman filter, we can derive the...
Currently, researchers use simulators to experimenttheir innovation on emerging non-volatile memory. Unfortunately, simulation method is both time-consuming andare hard to debug. In this paper, we present a non-volatile memory emulatorwhich enables system-level research on emerging memory. Ouremulator uses performance monitoring units on off-the-shelfprocessors to implement an accurete performance...
The increasing complexity of embedded systems requires an improved capability of detecting and fixing errors. The availability of a modeling environment like Simulink allows the verification by simulation or model checking of system properties and of the correct behavior of the design. This verification is possible upon condition that the requirements are expressed in a formal way. Test and verification...
In this paper we propose a model of the dynamic heart system, as a necessary and important element of the non-invasive ECG diagnostic system. It was shown that the conceptual and detailed models of heart electrical activity are the link for all the subsystems of the cardiovascular system. In this case the ECG provides information of the status and autowave processes in a dynamic heart system. To control...
People are suffering from a range of risks in the ubiquitous networks of current world, such as rumours spreading in social networks, computer viruses propagating throughout the Internet and unexpected failures happened in Smart grids. We usually monitor only a few users of detecting various risks due to the resource constraints and privacy protection. This leads to a critical problem to detect compromised...
In today's era of renewable energy, hydrogen fueled proton exchange membrane (PEM) fuel cells are considered as an important source of clean energy. As the technology is emerging fast, many universities and colleges have adopted fuel cells in their educational program. In this paper, we will present the modeling and control of the fuel cell pilot plant present in Clean Energy Trainer, which is used...
The South African Renewable Energy Independent Procurement Program has given rise to the commissioning of a number of utility size solar photovoltaic plants in recent years. Limited research has been conducted locally into performance monitoring and benchmarking of these large-scale solar photovoltaic plants. This paper presents the results of an exploratory study to investigate the potential of Data...
Wireless sensor network (WSN) is a wireless network of tiny, low-power nodes deployed in a region to keep track of environmental surroundings and collect data to be processed at a remote base station. Deployment remains one of the greatest challenges in WSN that impacts coverage and connectivity amongst other things. Coverage is one of the important issues in sensor networks, which echoes how well...
This paper will discuss an embedded system for Structural Health Monitoring (SHM). The system designed is a working proof of concept prototype made for an SHM system using Piezoelectronic transducers as the sensors. The system uses pulse-echo and pitch-catch techniques to find the location of damage and the width of the damage. If damage is present, the system will generate an email and send to the...
The application of the Wentzel-Freidlin asymptotic method in the control problem of estimating the probability of large deviattions is considered. This problem is reduced to the Lagrange optimal control problem for the action functional. In the case when state space matrix of object is Hurwitz matrix, the existence of a unique solution of the Lagrange problem in the form of quasipotential extremals...
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