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IDMA-Based Compressed Sensing for Ocean Monitoring Information Acquisition with Sensor Networks  [PDF]
Gongliang Liu,Wenjing Kang
Mathematical Problems in Engineering , 2014, DOI: 10.1155/2014/430275
Abstract: The ocean monitoring sensor network is a typically energy-limited and bandwidth-limited system, and the technical bottleneck of which is the asymmetry between the demand for large-scale and high-resolution information acquisition and the limited network resources. The newly arising compressed sensing theory provides a chance for breaking through the bottleneck. In view of this and considering the potential advantages of the emerging interleave-division multiple access (IDMA) technology in underwater channels, this paper proposes an IDMA-based compressed sensing scheme in underwater sensor networks with applications to environmental monitoring information acquisition. Exploiting the sparse property of the monitored objects, only a subset of sensors is required to measure and transmit the measurements to the monitoring center for accurate information reconstruction, reducing the requirements for channel bandwidth and energy consumption significantly. Furthermore, with the aid of the semianalytical technique of IDMA, the optimal sensing probability of each sensor is determined to minimize the reconstruction error of the information map. Simulation results with real oceanic monitoring data validate the efficiency of the proposed scheme. 1. Introduction With the ever-increasing demand for marine exploitation and the rapid development of network communication technologies, underwater sensor network (UWSN) [1] has become a new research hotspot in recent years. As the extension of wireless sensor networks (WSN) into ocean, UWSN has potential values in the wide application fields, such as oceanographic information collection, hydrological and environmental monitoring, resources exploration, disaster forecast, underwater navigation, and military defense. This paper focuses on the ocean environmental monitoring application. In this kind of UWSN, a large number of underwater sensor nodes are deployed in the concerned area, which measure the required physical, chemical, or biological phenomena and transmit the measurements to the monitoring center. Then, the monitoring center forms the information map of the monitoring area according to the measurements it received. Due to the particularity of underwater environments [2], wireless acoustic communication is believed as the most suitable physical layer transmission technology in underwater networks. However, wireless acoustic communication has some distinct disadvantages in the following aspects: low carrier frequency leads to limited available bandwidth; low propagation speed of sound leads to long end-to-end delay.
SnowWatch: Snow Monitoring through Acquisition and Analysis of User-Generated Content  [PDF]
Roman Fedorov,Piero Fraternali,Chiara Pasini,Marco Tagliasacchi
Computer Science , 2015,
Abstract: We present a system for complementing snow phenomena monitoring with virtual measurements extracted from public visual content. The proposed system integrates an automatic acquisition and analysis of photographs and webcam images depicting Alpine mountains. In particular, the technical demonstration consists in a web portal that interfaces the whole system with the population. It acts as an entertaining photo-sharing social web site, acquiring at the same time visual content necessary for environmental monitoring.
Monitoring genetic variability of Bulgarian cattle biodiversity  [cached]
Chiara Dalvit,Jivko Krastanov,Fabio Maretto,Nikolay Oblakov
Italian Journal of Animal Science , 2010, DOI: 10.4081/ijas.2009.s3.89
Abstract: The present paper aimed to characterize, using 19 microsatellite markers, three native Bulgarian cattle breeds, Iskar, Rhodope Shorthorn and Bulgarian Rhodope and to clarify their population structure. The three breeds own a genetic variability comparable with other European cattle breeds, nevertheless they showed a significant deviation from Hardy-Weinberg equilibrium in terms of heterozygote deficiency. Allelic frequencies distribution among breeds was highly significant confirming their genetic uniqueness. The population structure of Rhodope Shorthorn was complex and is probably the cause of its rather high FIS estimate (0.111); Iskar breed structure is also rather fragmented and should be studied more deeply while Bulgarian Rhodope population seemed to be the less variable. Presented results helped to clarify the present situation of Bulgarian cattle biodiversity giving interesting suggestions for their management and conservation.
Wireless Sensor Network for Wearable Physiological Monitoring  [cached]
P. S. Pandian,K. P. Safeer,Pragati Gupta,D. T. Shakunthala
Journal of Networks , 2008, DOI: 10.4304/jnw.3.5.21-29
Abstract: Wearable physiological monitoring system consists of an array of sensors embedded into the fabric of the wearer to continuously monitor the physiological parameters and transmit wireless to a remote monitoring station. At the remote monitoring station the data is correlated to study the overall health status of the wearer. In the conventional wearable physiological monitoring system, the sensors are integrated at specific locations on the vest and are interconnected to the wearable data acquisition hardware by wires woven into the fabric. The drawbacks associated with these systems are the cables woven in the fabric pickup noise such as power line interference and signals from nearby radiating sources and thereby corrupting the physiological signals. Also repositioning the sensors in the fabric is difficult once integrated. The problems can be overcome by the use of physiological sensors with miniaturized electronics to condition, process, digitize and wireless transmission integrated into the single module. These sensors are strategically placed at various locations on the vest. Number of sensors integrated into the fabric form a network (Personal Area Network) and interacts with the human system to acquire and transmit the physiological data to a wearable data acquisition system. The wearable data acquisition hardware collects the data from various sensors and transmits the processed data to the remote monitoring station. The paper discusses wireless sensor network and its application to wearable physiological monitoring and its applications. Also the problems associated with conventional wearable physiological monitoring are discussed.
A Novel Framework for Building Distributed Data Acquisition and Monitoring Systems  [cached]
Vu Van Tan,Dae-Seung Yoo,Myeong-Jae Yi
Journal of Software , 2007, DOI: 10.4304/jsw.2.4.70-79
Abstract: We propose a novel framework for building a distributed data acquisition and monitoring system. Our novel framework is mainly based on XML leverages and OPC (Openness, Productivity, and Connectivity) techniques. Correspondingly, our framework-based system allows easily aggregating more than the hundreds or thousands of the existing OPC DA (Data Access) products in use today with new OPC XML-DA products in a flexible system that can support to exchange the complex data between the OPC products in both the vertical and horizon effectively. In addition, the high performance and abilities of reading and decoding any type of data from hardware I/O devices on the plant floor, which are truly important factors in application design, are also adequately proposed in this framework. To provide a framework for design and implementation of the control and monitoring systems, our framework is proposed as the throughout of standards for interfaces, architectures, and functionalities. This framework is significantly easy to reuse, maintain, and deploy to real industrial applications. In addition to guarantee security problems, we discuss the levels of security aspects in the control and monitoring systems considerately. These security aspects provide more security information for technical-level readers. Moreover, the evaluations of our framework and system performance analysis indicate that our framework-based system has a good design, an acceptable performance, and is feasible to apply to the area of control and monitoring systems today.
Control and Monitoring System for Modular Wireless Robot  [PDF]
I. Firmansyah,B. Hermanto,L. T. Handoko
Computer Science , 2007,
Abstract: We introduce our concept on the modular wireless robot consisting of three main modules : main unit, data acquisition and data processing modules. We have developed a generic prototype with an integrated control and monitoring system to enhance its flexibility, and to enable simple operation through a web-based interface accessible wirelessly. In present paper, we focus on the microcontroller based hardware to enable data acquisition and remote mechanical control.
BLUETOOTH BASED VISUALIZATION FOR REAL TIME ECG MONITORING
POONAM T. BEDARKAR, SHANTI SWAMY
International Journal of Electrical, Electronics and Data Communication , 2013,
Abstract: This paper investigates a portable system for remote monitoring of cardiac activity. In this paper we present a low cost, handheld device with wireless transmission for real time ECG acquisition, archiving and visualization both in a mobile phone and a PC. With the recent advance in technology, we create small size wireless ECG system capable of transmitting ECG signal via Bluetooth technology to laptop.
A Data Acquisition and Monitoring System for the Detector Development Group at FZJ/ZEA-2  [PDF]
Riccardo Fabbri,Forschungszentrum Juelich
Physics , 2013,
Abstract: The central institute of electronics (ZEA-2) in the Forschungszentrum Juelich (FZJ) has developed the novel readout electronics JUDIDT to cope with high-rate data acquisition of the KWS-1 and KWS-2 detectors in the experimental Hall at the Forschungsreacktor Muenchen FRM-II in Garching, Muenchen. This electronics has been then modified and used also for the data-acquisition of a prototype for an ANGER Camera proposed for the planned European Spallation Source. To commission the electronics, software for the data acquisition and the data monitoring has been developed. In this report the software is described.
System for central monitoring, control, data acquisition, and automatic regulation for ARWQM  [PDF]
Markovi? Nata?a ?.,D?uni? Jovana S.,?or?evi? ?or?e R.,Gruber Günther
Facta Universitatis Series : Architecture and Civil Engineering , 2007, DOI: 10.2298/fuace0702095m
Abstract: This paper deals with construction of device for water quality monitoring on open water flows and connection of devices on individual river basins into central system for monitoring and supervision through GPRS modem. The device was tested on the WWTP (Waste Water Treatment Plant) in coal mine itluk, Sokobanja, and laboratory of the Faculty of Civil Engineering and Architecture Nis.
THE UTILITY OF CONTINUOUS GLUCOSE MONITORING IN EXERCISE AND HEALTH SCIENCE  [PDF]
ASHLEY C. ROUTEN
Citius Altius Fortius , 2010,
Abstract: Continuous glucose monitoring (CGM) is an evolving technology which provides information about the direction, magnitude, duration, frequency, and causes of fluctuations in blood glucose levels. This review summarises the rationale for ambulatory continuous glucose monitoring in the exercise sciences, the current literature to date, and potential future directions of research. It is concluded that CGM data collected during exercise/physical activity related trials would facilitate the improvement of glucoregulatory exercise programmes and development of more appropriate evidence based physical activity guidelines for glycaemic control
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