IEEE 802.15.4: a wireless communication technology for large-scale ubiquitous computing applications Anis Koubâa‚ Mario Alves‚ Eduardo Tovar PP-HURRAY! Research Group‚ Polytechnic Institute of Porto Rua Dr. Antonio Bernardino de Almeida‚ 431‚ 4200-072 Porto‚ PORTUGAL {akoubaa‚ emt}@dei.isep.ipp.pt‚ mjf@isep.ipp.pt Abstract. Wireless Sensor Networks (WSNs) have been attracting increasing interest for supporting a new generation of ubiquitous computing systems with great potential for many applications
Premium Wireless Computer network
Multiuser SMS Based Wireless Electronic Notice Board Abstract— This is the model for displaying notices in colleges on electronic notice board by sending messages in form of SMS through mobile; it is a wireless transmission system which has very less errors and maintenance. The hardware board contains microcontroller AT89c52 at the heart of the system. The microcontroller is interfaced with GSM Modem via MAX232 level convertor. It is used to convert RS232 voltage levels to TTL voltage levels and
Premium Embedded system GSM Microcontroller
Abstract—A telephone based wireless system for the remote operation of the home appliances is proposed. The telephone‚ acting as a remote controller‚ generates a DTMF signal corresponding to each dialed digit which is converted to a BCD code by the Telephone interface circuit. This is given as input to the transmitter module which is then used to control various home appliances through a receiver module. Data processing stages of the transmitter and receiver modules have been implemented
Premium Remote control Telecommunication Telephone
generating point to the consumers’ end without any physical wire has yet to as a familiar and viable technology. This paper focuses on the past and future possible advancements in WPT and explaining why it has still not come into practical utility. Wireless energy transfer has been around for about a century‚ but as of yet has only found usage in things like electric toothbrush rechargers and specialty applications such as beaming solar power down from space. A simple demonstration of it can be constructed
Premium
April 4th‚ 2006 A Technical Report: Wireless Sensor Networks and How They Work Prepared for Ann Holms University of California Santa Barbara Prepared by Ethan Culler-Mayeno University of California Santa Barbara Abstract Wireless sensor networks are a budding technology with the potential to change the way that we live. This report explains the workings of each network as a system of tiny computers called motes and the parts of the network. Furthermore‚ this report goes on to
Premium Wireless sensor network Sensor Sensor node
CONCEPT OF WIRELESS ELECTRICITY (Wi-Tricity) Our forefathers marveled at the invention of glowing light bulbs by Thomas Edison in 1879. However‚ to us 21st centurions‚ the light bulb is nothing out of the ordinary. When computers‚ cell phones‚ laptops‚ iPods‚ etc. were invented our antennas tweaked. Now this is what you call invention! However‚ as time’s progressing we are getting used to these devices. In fact‚ charging all these appliances has become so very cumbersome. Each appliance has its
Premium Radio Nikola Tesla Mobile phone
MADS6638 Unit 5 Wireless Security Objectives By the end of this unit‚ the participant will be able to: * Understand the need for wireless security * Check wireless connectivity from a public area * Understand war chalking and evil-twin intercept * Recognize the setting up of a wireless network in the workplace * Describe packets and how they work * Change the IP address and password for the router/switch * Enhance wireless security by encoding WEP and changing
Premium Wireless Wireless network Computer network
CALIFORNIA STATE UNIVERSITY‚ NORTHRIDGE WiTricity: Wireless Power Transfer A Graduate Project submitted in fulfillment of the requirements For the Degree of Master of Science in Electrical Engineering By Pranit Yeole MAY 2013 The Graduate Project of Pranit Yeole is approved: _________________________________________________ Dr. Ali Amini ____________ Date _________________________________________________ Dr. Ahmad Bekir ______________ Date _________________________________________________
Premium Magnetic field Transformer Electric power transmission
Wireless Power Transmission for Solar Power Satellite T.S. Hasarmani Department of Electrical Engineering‚ Bharati Vidyapeeth University’s College of Engineering‚ Pune 411043 santosh_hasarmani@rediffmail.com __________________________________________________________________________________________ Abstract --A great concern has been voiced in recent years over the extensive use of energy‚ the limited supply of resources‚ and the pollution of the environment from the use of present energy
Premium Radio Electromagnetic radiation Microwave
Wireless Electronic Notice Board Ajinkya Gaikwad‚ Tej Kapadia‚ Manan Lakhani & Deepak Karia Department of Electronics and Telecommunication Sardar Patel Institute of Technology‚ Mumbai 400058‚ India E-mail : ajinkyagaikwad25@yahoo.com‚ tejkapadia602@gmail.com‚ lakhanimanan111@gmail.com‚ deepakckaria@gmail.com Abstract – Notice Boards are a common occurrence in variety of institutions which we come across on a daily basis. In the current scenario the notice/ advertisement boards are being managed
Premium Bluetooth Wireless Wireless networking