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Improving pre-installed monitoring system for a set of Photovoltaic (PV) panels, using wireless sensor network (WNS) with embedded fuzzy controller, is our contribution in this work in order to control and detect faults within solar panels that affect considerably the energy produced by the solar panels. The new solution is to integrate the detection and classification of faults within the sensors...
In this work a new method is proposed to obtain the deployment of sensor nodes with a maximum coverage area using a minimum number of sensor nodes in three-dimensional surfaces. The deployment is performed using the dual Delaunay triangulation/Voronoi Diagram. The position selection process considered the vertices as candidate positions and the sensing radius. The positions were selected based on...
Data collection is an important operation in Wireless Sensor Networks. Sensors are deployed in given region of interest. They sense physical phenomenon and transfer data to a central node known as Sink. Tree is a widely used routing topology and Time Division Multiple Access (TDMA) is a widely used Medium Access Control (MAC) protocol. Sink is at the root of the tree. Often nodes in a tree aggregate...
Wireless Sensor Network (WSN) is consisting of independent and distributed sensors to monitor physical or environmental conditions, such as temperature, sound, pressure, etc. Routing protocols represent an essential aspect of the performance of mobile wireless networks. This paper presents a comparative analysis between several routing algorithms and their impact on the performance of WSN. The performance...
Wireless communication technologies together with physiological signals sensing provide a wide range of capabilities for monitoring, recording and analysis of the physical and health status of individuals. This paper describes two systems using wireless transmission of information designed to measure physiological signals. The first system is system for automatic cardiopulmonary examination measuring...
In this paper, we propose protocols and mechanism for creation and working of Virtual Sensor Networks (VSN). Through simulations we support the concept and show that the proposal can achieve better results than ordinary WSN. We provide an application scenario for configuration management of WSN using the WSN concept.
The wireless sensor network has promising future in the environment monitoring, such as river flood watching, ice storm watching, mine flood watch, forest fire watching. The wireless sensor network can observe the parameter such as the temperature, humidity for both underground and aboveground mine. During our experiment of the wireless sensor network in the river of Ontario, we gained a series experience...
The design of wireless environment monitor based on the AVR single-chip microcontroller and equipped with peripheral of nRF24L01, DS18B20K, DS1302 and LCD12864 chips is presented. Hardware circuit and main program flow are given in detail. The results of function simulation with the Proteus and ICCAVR have proved this design realized real-time monitoring of the environment parameters such as temperature,...
Fire is of major concern to those who work in underground coal mines. It is important to have a warning system that is capable of detecting fire and generating an alarm. In this paper, we present the design of an early warning system in a “Bord & Pillar” coal mine. It uses Wireless Sensor Networks (WSN) to detect the exact fire location and spreading direction and also provide the fire prevention...
Blue-green algae, widely distributed almost all over the world, is one kind of the most ancient and primitive algae plants. The toxin and smell that blue-green algae releases out endanger human life and health directly, it is of great significance to study the mechanism of algae outbreak. The paper presents a method for the algae simulation based on wireless sensor networks and particle systems theory...
Wireless sensor network (WSN) is more and more important for various applications. In WSN, location information plays an important role in most applications, and location accuracy is crucial to some applications, such as temperature monitoring, target tracking and so on. The original DV-HOP is an important range free localization algorithm which achieves relatively reasonable localization accuracy...
Based on the analyses of the disadvantages and advantages of every on-line monitoring system of transmission line's galloping, an on-line monitoring system of power transmission line's galloping based on displacement sensors and acceleration sensors is developed in this paper, in which the wireless sensors network and the slave monitoring unit installed on towers are designed by wireless communication...
In wireless sensor networks, object tracking is one of the important topics in research of wireless sensor networks. However, the core technology of object tracking is the positioning technique. In recent years, many positioning methods have been proposed. The main purpose of this paper is to achieve an object tracking mechanism with low complexity of computation and low cost based on various constraints...
Using the characteristic of nonlinear function approach of CMAC neural network in cluster node, a novel model of comprehensive calibration, which aiming to improve the static state output characteristic of sensor nodes, was presented. Correction model of sensor nodes and comprehensive calibration model of cluster node were set up. The arithmetic is demonstrated, according to the simulation results,...
Detecting and providing evolution informations of the wildfire can be a challenge for Wireless Sensor Networks. The network performance is directly related to the placement of the sensors within the field of interest. In this paper, we address the problem of wireless sensor deployment, for the purpose of following wildfire phenomenon. Based on a discrete event simulation using DEVS formalism, we show...
A principal factor in sensor network design is energy efficiency. In this work, we propose to extend the lifetime of sensor networks using appropriate choice of sensor node distribution. The key idea of our scheme is to deploy more nodes in areas of extensive energy usage. Using this scheme of sensor node distribution, we use probabilistic angular routing to route data packets from the sensor nodes...
This paper presents a distributed fermat-point range estimation strategy, which is important in the moving sensor localization applications. The fermat-point is defined as a point which minimizes the sum of distances from three sensors inside a triangle. This point is indeed at the trianglepsilas center of gravity. We solve the problems of large errors and poor performance in the bounding box algorithm...
Sink mobility has become an increasingly important requirement of various sensor network applications. Handling such mobile sink conditions brings new challenges to large-scale sensor networking. This investigation proposed a hybrid-structure routing protocol (HSRP) that combines the benefits of grid-based and cluster-based structures. Grid-based structure is designed to solve the cluster head selection...
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