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Short term thermal anomaly over the earth surface near the epicenter is a proven fact and point of interest for the seismologists and geoscientists. The aim of this paper is to describe the research work on Design and Implementation of an IEEE 802.15.4 / Zigbee 2.4 GHz based Wireless Sensor Network remotely placed having local area coverage for the study of surface weather observation and validation...
Typically, wireless sensor networks (WSNs) provide application-specific networking schemes based on restricted resources. For the reasons, WSN-based routing algorithms can be variously designed for applications. Even if two different WSN applications (e.g., target tracking and temperature monitoring) coexist in a network, the two applications can use different routing algorithms, running simultaneously...
A wireless sensors network for environmental monitoring using a standard communication scheme in a generic manufacturing system is developed within this research work. Parameters such as cost-efficient hardware components and high reliability performance were considered. Environmental variables considered for monitoring included: humidity, temperature, and CO2 gas. Physical wireless sensors were used...
The extensive diffusion of new generation wireless sensor networks requires the adoption of flexible mechanisms capable of abstracting the functionality of the nodes, facilitating their integration in larger computing infrastructures. This paper presents PyoT, a framework designed to simplify the development of complex applications for the Internet of Things, coordinating the activities of group of...
Miniaturized sensors and networking are technical proven concepts. Both the technologies are proven and various components e.g., sensors, controls, etc. are commercially available. Technology scene in above areas presents enormous possibilities for developing innovative applications for real life situations. Mining operations in many countries have lot of scope for improving environmental and safety...
Currently, many specialized tools for monitoring and control of sensor networks are existing and being used separately. In this paper, an architecture of a component-based tool, named WiSeCoMaSys, is presented to integrate data monitoring from sensor networks, visualization, measurements and network management in a unique system. WiSeCoMaSys helps developers to debug their network deployments easily...
One of the prerequisites for the normal operation of a small and medium-scale wireless sensor network is the ability to diagnose sensor node failures. Considering the characteristics of small scale, low-density node distribution, stable network topology and the fact that each node of the small and medium-scale wireless sensor network can be monitored, a method for detecting and identifying sensor...
In this paper, ultra-wideband technology and the wireless sensor networks are introduce for the purpose of forest fire early warning system. The system is the basis of information disposal, sensing and wireless communication technique. The system includes the following aspect: the integration of wireless temperature sensor, the integration of wireless humidity sensor, the corresponding network topology,...
Key design requirements for wireless sensor network (WSN) applications revolve around long battery life, low cost, small footprint and mesh-networking in supporting communication between large numbers of devices in an interoperable and multi-application environment. This paper presents a WSN testbed that aims to facilitate the developments and experiments of different routing algorithms. Numerous...
Wireless Sensor Networks are evolving rapidly and are becoming part of our every day life. Vast usage of these networks has resulted in development of many routing protocols for WSN. Sensor nodes have limited battery power, for which many protocols have been designed to use the available energy of the nodes in efficient manner. An energy aware routing algorithm has been developed . It works on location...
Low power consumption and small footprint make ZigBee based devices well suited for personal healthcare applications, being a promising alternative to general care patient monitoring. However, their use in a healthcare facility to monitor several mobile patients poses several difficulties, mainly because this protocol was primarily designed to operate in low data rate scenarios. This paper introduces...
IEEE 802.15.4 standard defines the specification of the physical layer and the MAC sub-layer for low rate wireless personal area networks (LR-WPAN). The standard specifies CSMA/CA as the access method to use during Contention Access Period (CAP). Such method gives almost the same probability for all devices to access the medium. In case the traffic generated by the devices has the same priority level,...
Wireless Sensor Networks (WSNs) are immensely deployed for monitoring information like humidity, temperature and soil fertility. As the sensor nodes sense data and floods them in the network, the network traffic increases and may result in congestion which leads to broadcast storm problem. This paper addresses the utility of network coding to optimize data aggregation and to decrease the number of...
In sensor networks concerning about data, data management and representation have become a crucial issue. In this paper, sensor networks deployed to monitor wetland are built with the visualization of their data and topology. The environmental data, such as temperature, humidity, both in atmosphere and soil, illumination intensity and PH around the wetland are sent by the wireless sensor networks...
Monitoring microenvironment at the farm level has recently become one of the hottest topics in precision agriculture. Zigbee technology is then the most prospective candidate for wirelessly networking those field sensors due to its low cost and power consumption and flexible architecture. The microclimate monitoring system in this research is a suit of equipments based on Zigbee networking to measure...
Wireless sensor networks are one of the technologies that will revolutionize the world in this new century, thanks to its various applications in the environmental field and in the biomedical field. This article focuses its main efforts in learning the basic principles and major characteristics at the time of establishing the design of a functional prototype for the monitoring of biomedical signals,...
Wireless sensor networks (WSNs) have promised us a new monitor and control model over the distributed computing environment. In general, these networks consist of a large number of sensor nodes densely distributed over the region of interest for collecting information or monitor & track certain specific phenomena from the physical environment. Network management in WSNs becomes extremely important...
We present the design and implementation of UDAE, a universal data access engine for wireless sensor networks. The UDAE allows developers to access data both locally and over the network from a variety of sources, such as sensors, communications links and platform components in a unified manner. It is also fully extensible, allowing data sources and users to be added flexibly at run-time. This enables...
Wireless sensor networks provide an opportunity to enhance the current equipment diagnosis systems in the process industry, which have been based so far on wired networks. In this paper, we use our experience in the Anshan Iron and Steel Factory, China, as an example to present the issues from the real field of process industry, and our solutions. The challenges are three fold: First, very high reliability...
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