Essays about: "WSN Wireless Sensor Network"

Showing result 21 - 25 of 93 essays containing the words WSN Wireless Sensor Network.

1. 21. The Optimization of Solar Energy Harvesting in WSN

   University essay from Mittuniversitetet/Avdelningen för elektronikkonstruktion

   Author : Zhitan Li; [2018]
   Keywords : Solar energy; wireless sensor network; energy harvesting; sensor-node lifetime; energy consumption; capacity; size of solar panel.;

   Abstract : In recent year, wireless sensor networks have gradually become an indispensable part of people's daily lives. Energy consumption and energy harvesting play an important role in these systems. In outdoor, there is no doubt that solar energy is more suitable to powering the wireless sensor nodes. READ MORE

3. 22. IoT Latency and Power consumption : Measuring the performance impact of MQTT and CoAP

   University essay from Högskolan i Jönköping/JTH, Datateknik och informatik

   Author : Alexander Lagerqvist; Tejas Lakshminarayana; [2018]
   Keywords : Internet of things; IoT; Wireless sensor networks; WSN; Constrained devices; MQTT; CoAP; Latency; Power consumption; Experiment;

   Abstract : The purpose of this thesis is to investigate the impact on latency and power consumption of certain usage environments for selected communication protocols that have been designed for resource constrained usage. The research questions in this thesis is based on the findings in Lindén report “A latency comparison of IoT protocols in MES” and seeks to answer the following: ”How does MQTT impact the latency and power consumption on a constrained device?” ”How does CoAP impact the latency and power consumption on a constrained device?” ”How does usage environment influence the latency for MQTT and CoAP?” This thesis only seeks to explore concepts and usage environments related to wireless sensor networks, internet of things and constrained devices. READ MORE

4. 23. Evaluation of Bluetooth Low Energy in Agriculture Environments

   University essay from Malmö högskola/Fakulteten för teknik och samhälle (TS)

   Author : Jonathan Bjarnason; [2017]
   Keywords : WSN; Bluetooth low energy; Precision agriculture;

   Abstract : The Internet of Things (IoT) is an umbrella term for smart things connected to the Internet.Precision agriculture is a related concept where connected sensors can be used to facilitate, e.g. more effective farming. READ MORE

5. 24. Thermal energy harvesting for indoor industrial applications

   University essay from Mittuniversitetet/Avdelningen för elektronikkonstruktion

   Author : Mengxuan Li; [2017]
   Keywords : Thermal energy harvester; thermal energy generator; temperature difference; air flow; heat sink; comsol multiphysics;

   Abstract : Wireless sensor network (WSN) nodes cannot directly used by the traditional power grid, a most common way to supply power to WSN nodes is to use batteries. However, the battery has a disadvantage that is the limited lifetime, adding an energy harvester to extend the lifetime is a good way. READ MORE

6. 25. Publish-Subscribe Communication for CoAP

   University essay from KTH/Skolan för informations- och kommunikationsteknik (ICT)

   Author : Jussi Haikara; [2017]
   Keywords : ;

   Abstract : Low powered Internet of Things solutions such as wireless sensor networks often operate under heavy constraints, and require special care in the design of their communication models. This project consists of implementing and evaluating the proposed IETF draft of the publish-subscribe communication model for the Constrained Application Protocol (CoAP) on a wireless sensor network (WSN) using the Contiki operating system. READ MORE