Essays about: "Battery-free"

Found 5 essays containing the word Battery-free.

1. 1. Exploring electromagnetic induction as a power source for interactive human-powered devices

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Elena Gonzalez Rabal; [2020]
   Keywords : Human Power Interaction; Electromagnetic Induction; Coil; Enconder; Interactive Prototype.;

   Abstract : In the last decade, we have seen an increasing interest in the designing of interactive technology that is limited in energy usage to our bodily capabilities. This field is commonly referred to as Human-Power Interaction (HPI). The aim of HPI is to create battery-free devices that are powered solely from human interactions. READ MORE

3. 2. Battery-free Visible Light Sensing

   University essay from Uppsala universitet/Avdelningen för datorteknik

   Author : Andreas Soleiman; [2019]
   Keywords : Networked embedded systems; Visible light sensing; RF backscatter; Energy harvesting;

   Abstract : In this thesis, we show that it is possible to design a battery-free light sensing system that can sense and communicate hand gestures while operating fully on harvested power from indoor light. We present two main innovations that push our system to tens of microwatts of power to enable battery-free operation. READ MORE

4. 3. Towards Long-Range Backscatter Communication with Tunnel Diode Reflection Amplifiers

   University essay from Uppsala universitet/Fasta tillståndets elektronik

   Author : Gustav Eriksson; [2018]
   Keywords : Amplified backscatter tag; Reflection amplifier; Battery-free; Long-range communication; Tunnel diode; Ultra-low power consumption; RFID; Frequency shift;

   Abstract : Backscatter communication enables wireless communication at a power consumption orders of magnitude lower than conventional wireless communication. Instead of generating new RF-signals backscatter communication leverages ambient signals, such as WiFi-, Bluetooth- or TV-signals, and reflects them by changing the impedance of the antenna. READ MORE

5. 4. Towards Battery-free Radio Tomographic Imaging : Battery-free Boundary Crossing Detection

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Abdullah Hylamia; [2018]
   Keywords : battery-free; radio-tomographic-imaging; boundary-crossing; analog-backscatter; envelope-detector; radio-frequency; batterifri; radiotomografisk avbildning; gränsöverskridande; analogbakåtskridande; kuvertdetektor; radiofrekvens;

   Abstract : Radio tomographic imaging (RTI) is a novel device-free localization technique which utilizes the changes in radio signals caused by obstruction to enable various sensing applications. However, the deployment of these applications is hindered by the energy-expensive radio sensing techniques employed in these systems. READ MORE

6. 5. Implementation of the EPC Class 1 Gen 2 Protocol by Miller-2 coding for the WISP Platform

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

   Author : Tuton Chandra Mallick; [2011]
   Keywords : ;

   Abstract : Wireless Identification and Sensing Platform (WISP) is a battery free and fully software defined Radio Frequency Identification (RFID) tag. WISP is an open source architecture that allows exploration to integrate with several sensors and other devices. READ MORE