Cyber-Physical systems (CPSs) represent a new generation of digital systems, where cyber entities and physical devices cooperate towards a set of common goals. The research presented in this paper aims to contribute t...
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ISBN:
(纸本)9781479948260
Cyber-Physical systems (CPSs) represent a new generation of digital systems, where cyber entities and physical devices cooperate towards a set of common goals. The research presented in this paper aims to contribute to the development of CPSs by proposing an open architecture applicable in environmental monitoring, consisting of three layers. The paper provides a detailed description of each one of the CPS's main components. The bottom layer, composed of wireless sensor nodes, allows the acquisition of data and their transfer to the upper layers. The top and middle layers, composed of a measurements database, a knowledge base, a multi-Agent society and web services, assure the proper operation of the CPS based on decision rules and complex data analyses. The proposed architecture provides a high degree of flexibility and scalability.
The RECON project is an unmanned aerial vehicle (UAV), which is automated to monitor, analyze, inspect, and intervene in bridges, roads, residential areas, etc. RECON is controlled using dataacquisition devices from ...
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ISBN:
(纸本)9781479967292
The RECON project is an unmanned aerial vehicle (UAV), which is automated to monitor, analyze, inspect, and intervene in bridges, roads, residential areas, etc. RECON is controlled using dataacquisition devices from National Instruments and programmed under LabVIEW. The system is prepared to make a stable journey, communicate, deliver, and intervene and assist. RECON is ubiquitous;the software is web-enabled so that the user can control it using smart phones, tablets, laptops and other computing devices. The system provides a true pervasive computing experience. This paper presents the system organization, architecture, programming application, evaluation and analysis of the proposed system.
With the increasing data communication these days, the congestion and quality of transmission are degrading big time. The availability of spectrum is becoming a major concern for the private organizations to manage th...
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ISBN:
(纸本)9781479930807
With the increasing data communication these days, the congestion and quality of transmission are degrading big time. The availability of spectrum is becoming a major concern for the private organizations to manage the burgeoning users. Thus, there is an urgent need of Smart Spectrum allocation through the intelligent Spectrum Sensing. Cognitive Radios are designed for the same. But which communication systems (TDCS or WDCS) are better suited for intelligent sensing and which transformation yields better results is a problem that needs to be resolved. This study is a work in progress case which presents a comparative analysis of the systems with various transforms. The study reveals that WDCS based on wavelet transforms are better suited for the intelligent sensing of Spectrum and can be utilized in the designing of Cognitive Radios.
In computing, a benchmark is the result of running a set of computer programs or a computer program, in order to assess relative performance by running a series of standard tests. By doing this, researchers highlight ...
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ISBN:
(纸本)9781479950577
In computing, a benchmark is the result of running a set of computer programs or a computer program, in order to assess relative performance by running a series of standard tests. By doing this, researchers highlight the characteristics of certain systems and are able to rank the system against the rest. On the other hand, Bigdata is a hot topic. It not only deals with large amounts of data sets and the procedures and tools used to analyze and manipulate them, but also to a computational turn in research and thought. At the same time, Decision Support applications are related to Big data as they need to deal with large datasets. In this paper we describe two of the most popular benchmarks, one representing Decision Support systems (TPC-H), and the other represents the Big data class (YCSB - Yahoo Cloud Serving Benchmark).
A LabVIEW based dataacquisition system (LV-DAS) is developed for Electrical Impedance Tomography (EIT) for automatic current injection and boundary data collection. The developed LV-DAS consists of a NIUSB-6251 DAQ c...
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This paper describes the mobile Ad-Hoc (wireless) network (MANET) for emergency scenarios in nuclear power plant (NPP). Authors proposed the system with such properties as flexibility and a self-forming and self-heali...
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The use of digital instruments in industries and laboratories is rapidly increasing as they are simple to calibrate and have relatively high precision. In this paper, an automatic dataacquisition system is proposed u...
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ISBN:
(纸本)9781479930807
The use of digital instruments in industries and laboratories is rapidly increasing as they are simple to calibrate and have relatively high precision. In this paper, an automatic dataacquisition system is proposed using OCR technique from digital multi-meter and other similar digital display devices. The input image is taken from a digital multi-meter having LCD seven segment display using a webcam. The image is then processed to extract numeric digits which are recognized using a feedforward neural network. The recognized values may be then exported to a spreadsheet for graph plotting and further analysis. A distinct advantage of this method is that it can automatically detect decimal point as well as negative sign. This setup can be used in real time systems employing a wide variety of digital display instruments, with high accuracy.
Automatic age estimation relying on human facial images is a key technology of many real-world applications, which is still a challenging task in the computer vision field. There are three cascade modules for facial a...
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ISBN:
(纸本)9781479947195
Automatic age estimation relying on human facial images is a key technology of many real-world applications, which is still a challenging task in the computer vision field. There are three cascade modules for facial age estimation: facial aging feature extraction, dimension reduction (or feature selection) and estimation method. Many existing literatures focus on the first or last module while for an age estimation system, it's also important to construct a reasonable framework. Our work focuses on creating an effective framework by selecting methods for these modules reasonably. Firstly, a BIM (bio-inspired model) is employed to extract facial aging features because it can not only capture discriminative local and global features, but also overcome interferences of some 2D deformations to some extent. Then, LDA (linear discriminant analysis) is used for reducing the BIF (bio-inspired features) to lower dimensions and extracting more discriminative information at the same time. Finally, CS-OHRank (cost-sensitive ordinal hyperplane rank), which tackles with sparse data well and reflects the cumulative attributes of aging, is applied as the estimation method. Experimental results on benchmark dataset FG-NET show that our framework combining BIF, LDA and CS-OHRank is competitive among the state of the art, with MAE (mean absolute error) = 4.72 years
In the era of big data, the use of formal models and techniques to represent and manage information is a necessary task to implement efficient intelligent information systems. In this paper we propose a complete frame...
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ISBN:
(纸本)9781479950577
In the era of big data, the use of formal models and techniques to represent and manage information is a necessary task to implement efficient intelligent information systems. In this paper we propose a complete framework to annotate and categorize images. Our approach is based on multimedia ontologies organized following a formal model to represent knowledge. Our ontologies use multimedia data and linguistic properties to bridge the gap between the target semantic classes and the available low-level multimedia descriptors. The multimedia features are automatically extracted using algorithms based on MPEG-7 standard. The informative image content is annotated with semantic information extracted from our ontologies and the categories are dynamically built by means of a general knowledge base. Experimental results show the efficiency of our approach in the annotation and classification tasks using a combination of textual and visual components.
Probably one of the most significant developments in the field of software-defined multifunction dataacquisitionsystems and devices is the employment of FPGA (Field-Programmable Gate Array) technology, resulting in ...
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ISBN:
(纸本)9783038351122
Probably one of the most significant developments in the field of software-defined multifunction dataacquisitionsystems and devices is the employment of FPGA (Field-Programmable Gate Array) technology, resulting in a tremendous digital processing potential close to the I/O pin. FPGA technology is based on reconfigurable semiconductor devices which can be employed as processing targets in heterogeneous computing architectures for a variety of dataacquisition applications. They can primarily be characterized by generic properties, such as deterministic execution, inherent parallelism, fast processing speed and high availability, stability and reliability. Therefore FPGAs are particularly suitable for use in "intelligent" dataacquisition applications that require either in-line digital signal co-processing or real-time system emulation in the field of advanced control, protocol aware communication, hardware-in-the-loop (HIL) as well as RF and wireless test. From the perspective of a domain expert however, primarily being focused on developing applications and algorithms, simple and intuitive design entry methods and tools are required that facilitate the FPGA configuration and design entry process. Traditional FPGA design entry methods and commercially available tools assume a comprehensive knowledge of hardware description languages (HDL), such as VHDL or Verilog®, and implement a process or function at register-level. In contrast, graphical hardware description languages for FPGAs, such as the integrated development environment NI LabVIEW® with FPGA module extension, abstract the design process by means of graphical objects, I/O nodes and interconnecting wires that represent the FPGA's IP and implement processes, timing, I/O integration and data flow. This paper discusses the advantages of graphical system design for FPGAs over text-based alternatives, introduces interfaces for the integration of 3rd party IP, all backed up by a detailed illustration of a COTS FP
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