Sensor node

connectivity and coverage, the category of sensor nodes, sensing models and communication models. 2.1. Connectivity and coverage The objective of deploying a WSN is to keep the FoI under strict surveillance and then forward the obtained information to a designated gateway/data sink. Hence, coverage and connectivity are the sufficient conditions for keeping the functionality of a WSN. Since the data aggregated by a WSN has to be forwarded to the processing…

Types of Sensor Networks Terrestrial WSNs: - In Terrestrial WSNs, nodes are distributed in a given area either in a pre-planned manner (sensor nodes are placed according to optimal placement, grid placement, 2-d and 3-d placement models) or in an ad hoc manner (sensor nodes are randomly placed in the target area by dropping it from plane). After all battery power is limited and it cannot be reenergized, terrestrial sensor nodes must be provided with a maximum power source such as solar cells. …

2.5 Proposed Architectures for SDN in WSN The novel idea of exploiting OpenFlow technology to address reliability issues in sensor networks was presented by (Arif Mahmud and Rahim Rahmani, 2011) at the IEEE International Conference on Computer Science and Network Technology while the first architectural proposal was presented by (Luo et al., 2012) in the form of Software Defined Wireless Sensor Network (SD-WSN). Up until now, very limited research work is carried out in this area. Some of the…

SYSTEM IMPLEMENTATION: At some fixed interval the PC Master sends request to the Wireless sensor node through the sub master for Data collection. The request send by the PC Master is in the form of frames. The frame which is transmitted by PC master will contain both the sub master id & the wireless sensor node id from where the data should be retrieved. The sub master receives the frame is then check for the wireless sensor node id and then it retransmit to the wireless sensor node as it is.…

INTRODUCTION 1.1 WIRELESS SENSOR NETWORK (WSN): Wi-Fi sensor networks (WSN), once in a while called wireless tool and actuator networks (WSAN), are spatially disbursed autonomous sensors to monitor bodily or environmental situations, which include temperature, sound, pressure, and so forth. and to cooperatively pass their expertise through the network to a major location. The extra brand new networks are bi-directional, additionally sanctioning control of device activity. The improvement…

1.1 Introduction This chapter will briefly discuss the background of Software Defined Networking (SDN) and its use in Wireless Sensor Networks (WSN). It will also state the Problem Definition, the Aims & Objectives of this project, and the Methodology used to achieve those objectives. In the end, it will present an overview of the dissertation’s layout. 1.2 Background The Internet has made an enormous impact on the world of communications. It has interconnected billions of networking devices…

Every robot is connected with numerous sensors which help in automating the whole process. So, once the robot is programmed for a specific task, the sensors then continuously monitor the task being undertaken by the robot and help the robot to perform that task optimally. These sensor values have to be monitored continuously by a system. The system consists of controllers and processors which process the data provided by the sensors and then send control signals to the robots. Now, big…

The communication protocols used in connecting sensors form a network for collecting sensory information called BSN. Patients who are going about their day to day activity can receive quality health monitoring in real time by us of BSN. The BSN nodes are attached to these patients. On a predetermined period, the BSN collect health information such as pulse, blood sugar level and temperature and transmit it to a remote medical aid. This way, the medical personnel are able to keep up to date with…

This mechanism implemented with two sesnors which can detect a surface under the robot and move the robot accordingly. If the edge is detected on a platform by right sensor the robot will turn to its left and vice versa. When the robot detects the edge on both the sides it moves backward untill it doesn’t detect any edge and then moves to the right side a little and repeats the above process. Line following robot : Now, lets design a line following robot, for that, I need to pick a 50 ext block…

Design and Simulation of Microcantilevers for Sensing Applications Abstract- MEMS is the integration of active and passive elements on a single chip, which combine electronics, electrical as well as mechanical elements to use in sensing and actuation. MEMS technology used in sensing applications with use of basic mechanical elements such as microcantilevers, beams, diaphragms, springs, gears and so on. In this research paper, microcantilevers are used as basic elements for design of Sensors.…