The blocking of the guard beams can be sensed quickly enough to detect the fastest motions of the human body, based on decades of physiological studies. In 8th ESA Workshop on Advanced Space Technologies for Robotics and Automation. In 2011 IEEE/RSJ International Conference on Intelligent Robots and Systems. FingerIO: Using Active Sonar for Fine-Grained Finger Tracking. Gollakota and co-author Arka Majumdar, a UW assistant professor of physics and electrical engineering, led the team that designed this wireless charging system and its safety features. Check out the GeekWire Summit lineup A smartphone is powered up using a laser-based charging system. Charging a Smartphone Across a Room Using Lasers • 143:3 exposure time. Using a laser to wirelessly charge a smartphone safely across a room Date 2018-02-25 Category News Tags UW.Edu “ Although mobile devices such as tablets and smartphones let us communicate, work and access information wirelessly, their batteries must still be charged by plugging them in to an outlet. For more information, contact the team at laserpower@cs.washington.edu. http://energous.com/, USB Implementers Forum. TEC1-12706. Summerer Leopold and Oisin Purcell. 2017. CLEO: 2014, STu3M.5. J. Mukherjee, W. Wulfken, H. Hartje, F. Steinsiek, M. Perren, and S. J. Sweeney. "The laser used for the charging is normally colorless; however, for demonstration purposes the investigators used red beams. (2011). 2011. 2014. Engineers at the University of Washington have for the first time developed a method to safely charge a smartphone wirelessly using a laser. Demonstration of eye-safe (1550 nm) terrestrial laser power beaming at 30 m and subsequent conversion into electrical power using dedicated photovoltaics. Thomas J. Nugent, Jr. and Jordin T. Kare. (Image Source; University of Washington) Scientists, including those of Indian origin, have developed a laser emitter that can safely charge a smartphone across a room as quickly as a standard USB cable. More about Smartphone, Laser, Wireless, Charger further break news from phone Laser Wireless Charger Using a laser to wirelessly charge a phone significantly across a room February 21, 2018. 2016. We demonstrate a novel laser-based wireless power delivery system that can charge mobile devices such as smartphones across a room. These strips act as a heatsink, dissipating excess heat from the charging beam and allowing the laser to charge the smartphone for hours. (2001). MTP2955. In Proceedings of the 11th ACM Conference on Emerging Networking Experiments and Technologies (CoNEXT ‘15). As the team reports in a paper published online in December in the Proceedings of the Association for Computing Machinery on Interactive, Mobile, Wearable & Ubiquitous Technologies, a narrow, invisible beam from a laser emitter can deliver charge to a smartphone sitting across a room - and can potentially charge a smartphone as quickly as a standard USB cable. The beam charges the smartphone via a power cell mounted on the back of the phone. We use cookies to ensure that we give you the best experience on our website. 2004. In addition, the team custom-designed safety features — including a metal, flat-plate heatsink on the smartphone to dissipate excess heat from the laser, as well as a reflector-based mechanism to shut off the laser if a person tries to move in the charging beam’s path. Wireless Power Transfer via Strongly Coupled Magnetic Resonances. The charging beam is generated by a laser emitter that the team configured to produce a focused beam in the near-infrared spectrum. 2016. To ensure that the charging beam does not overheat the smartphone, the team also placed thin aluminum strips on the back of the smartphone around the power cell. A narrow beam can deliver a steady 2W of power to 15 square-inch area from a distance of up to 4.3 meters, or about 14 feet. The researchers’ technology enables a laser emitter’s narrow, invisible beam to power up a smartphone from across the room — perhaps as quickly as a standard USB cable. Yunxin Liu, Zhen Qin, and Chunshui Zhao. 0.5W Solar panel. Quasistatic Cavity Resonance for Ubiquitous Wireless Power Transfer. They developed a new type of cell on the back of a smartphone, and that cell reacts with the laser and converts that energy to charge the phone. Next to each guard beam port are clear photodiodes, which detect the guard beams when they’re reflected back to the emitter by retroreflectors on the phone.Mark Stone/University of Washington. 22 February 2018. Shane S. Clark, Jeremy Gummeson, Kevin Fu, and Deepak Ganesan. 195. University of Washington, Seattle, WA, USA. In Proceedings of the 6th ACM Conference on Embedded Network Sensor Systems (SenSys ‘08). Charging Unplugged: Will Distributed Laser Charging for Mobile Wireless Power Transfer Work? http://advancedphotonix.com/wp-content/uploads/PDB-C156.pdf, S. Raavi, B. Arigong, R. Zhou, S. Jung, M. Jin, H. Zhang, and H. Kim. RFID Sensor Networks with the Intel WISP. https://www.digikey.com/product-detail/en/advanced-thermal-solutions-inc/ATS-60000-C1-R0/ATS1376-ND/1285090, Sony. To ensure that the charging beam does not overheat the smartphone, the team also placed thin aluminum strips on the back of the smartphone around the power cell. Check if you have access through your login credentials or your institution to get full access on this article. Electret Condenser Microphone. As the team reports in a paper published online in December in the Proceedings of the Association for Computing Machinery on Interactive, Mobile, Wearable & Ubiquitous Technologies, a narrow, invisible beam from a laser emitter can deliver charge to a smartphone sitting across a room - and can potentially charge a smartphone as quickly as a standard USB cable. 2009. Wireless power transmission experiment using an airship as relay system and a moveable rover as ground target for later planetary exploration missions. 1--10. Resonant wireless power transfer to ground sensors from a UAV. Ltd Hebei I.T. Efficient wireless power transfer using underground relay coils. https://doi.org/10.1145/2716281.2836089, Wibotic. (2017). Further, extensive characterization of our safety system shows that we can turn off our laser source much before a human moving at a maximum speed of 44 m/s can even enter the high-power laser beam area. (Shanghai) Co. 2001. E Hoffert, P Soukup, and M Hoffert. http://www.meadowlark.com/store/data_sheet/opticalshutter.pdf, Aaron N. Parks, Angli Liu, Shyamnath Gollakota, and Joshua R. Smith. To manage your alert preferences, click on the button below. The charging laser and guard lasers are normally invisible to the human eye, but red beams have been inserted in place of the guard beams for demonstration purposes.Mark Stone/University of Washington. “In addition to the safety mechanism that quickly terminates the charging beam, our platform includes a heatsink to dissipate excess heat generated by the charging beam,” said Majumdar, who is also a researcher in the UW Molecular Engineering & Sciences Institute. If you forgot your charger today, engineers from the University of Washington have a solution for you — and it’s lasers. PLOS ONE 12, 2 (02 2017), 1--14. https://doi.org/10.1371/journal.pone.0169045. 2013. These strips act as a heatsink, dissipating excess heat from the charging beam and allowing the laser to charge the smartphone … (2017). They've engineered a new way to charge a smartphone by using a system of laser beams. (2009). 2016. http://wiki.seeedstudio.com/index.php?title=0.5w_Solar_Panel_55*70, Vamsi Talla, Bryce Kellogg, Benjamin Ransford, Saman Naderiparizi, Shyamnath Gollakota, and Joshua R. Smith. 2011. Researchers mounted a thin power cell to the back of a smartphone, which charges the smartphone using power from the laser. ProjecToR: Agile Reconfigurable Data Center Interconnect. Breaking News. 2000. Hyeonseok Lee, Hyun-Jun Park, Hoon Sohn, and Il-Bum Kwon. IEEE, 2660--2665. The safety system that shuts off the charging beam centers on low-power, harmless laser “guard beams,” which are emitted by another laser source co-located with the charging laser-beam and physically “surround” the charging beam. Researchers have long speculated that a device like this might make wires and charging cables a thing of the past, allowing people to beam energy invisibly across a room to … Laser diode- Red. Europeans Space Agency (ESA)-Advanced Concepts Team (2009). (2011). The key challenges in achieving this are multi-fold: delivering greater than a watt of power across the room, minimizing the exposure of the resulting high-power lasers to human tissue, and finally ensuring that the design meets the form-factor requirements of a smartphone and requires minimal instrumentation to the environment. https://doi.org/10.1364/CLEO_SI.2014.STu3M.5. Planar Retroreflector, In CLEO: 2014. The wireless charging system created by University of Washington engineers. Near-IR laser system safely charges a smartphone wirelessly from across a room This laser-based wireless charging system was created by University of Washington engineers. AutoCharge: Automatically Charge Smartphones Using a Light Beam. High contrast optical shutter. The key challenges in achieving this are multi-fold: delivering greater than a watt of power across the room, minimizing the exposure of the resulting high-power lasers to human tissue, and finally ensuring that the design meets the form-factor requirements of a smartphone and requires minimal instrumentation to the environment. 2014. Concepts for wireless energy transmission via laser. “This acoustic localization system ensures that the emitter can detect when a user has set the smartphone on the charging surface, which can be an ordinary location like a table across the room,” said co-lead author Vikram Iyer, a UW doctoral student in electrical engineering. Although mobile devices such as tablets and smartphones let us communicate, work and access information wirelessly, their batteries must still be charged by plugging them in to an outlet. “As a result, when the guard beam is interrupted by the movement of a person, the emitter detects this within a fraction of a second and deploys a shutter to block the charging beam before the person can come in contact with it.”. In Robotics and Automation (ICRA), 2012 IEEE International Conference on. Researchers developed a cell that can power a smartphone using energy from laser beams – and it charges just as quickly as a direct connection with a USB cable. To accomplish this, the … Q. Liu, J. Wu, P. Xia, S. Zhao, W. Chen, Y. Yang, and L. Hanzo. High intensity laser power beaming architecture for space and terrestrial missions. “These features give our wireless charging system the robust safety standards needed to apply it to a variety of commercial and home settings.”. [n. d.]. SPIE Laser Power Beaming II Proceedings (1995). Optical wireless power transmission at long wavelengths. (2017). Engineers at the University of Washington have demonstrated the ability to charge a smartphone wireless from across a room using a laser. The high-powered guard beam is emitted from the central port. [n. d.]. Energous. 1995. Power Beaming for Space-Based Electricity on Earth: Near-Term Experiments with Radars, Lasers and Satellites. This alert has been successfully added and will be sent to: You will be notified whenever a record that you have chosen has been cited. 2013. 2011. Turbocharging Ambient Backscatter Communication. Science 317, 5834 (2007), 83--86. https://doi.org/10.1126/science.1143254 arXiv:http://science.sciencemag.org/content/317/5834/83.full.pdf. Taysir Nayfeh, Brian Fast, Daniel Raible, Dragos Dinca, Nick Tollis, and Andrew Jalics. In 2011 International Conference on Space Optical Systems and Applications (ICSOS). Using a laser to wirelessly charge a smartphone safely across a room. (2015). Safety of Laser Products. New wireless charging tech juices your phone from across the room using lasers ChargingaSmartphoneAcrossaRoomUsingLasers • 143:5 0 20 40 60 80 100 120 140 0 5 10 15 20 25 30 0 % 0.2 % 0.4 % 0.6 % 0.8 % 1 % Transmit Power (kW) Efficiency If you're trying to subscribe with a non-UW email address, please email uwnews@uw.edu for assistance. 2004. In Proceedings of the 2014 ACM Conference on SIGCOMM (SIGCOMM ‘14). (2017). Using a laser to wirelessly charge a smartphone safely across a room. James C Lin. http://www.wibotic.com/, Charging a Smartphone Across a Room Using Lasers, All Holdings within the ACM Digital Library. Advanced Thermal Solutions. 2011. Tweet. Laser power beaming for defense and security applications. The team created a way for a narrow, invisible beam to charge a phone from across the room and at a speed just as fast as the modern USB cable. 2014. The guard beams deliver no charge to the phone themselves, but their reflection from the smartphone back to the emitter allows them to serve as a “sensor” for when a person will move in the path of the guard beam. DOD and Navy applications for laser power beaming. In Proceedings of the ACM SIGCOMM 2013 Conference on SIGCOMM (SIGCOMM ‘13). 2004. The generator is mounted on top of an aluminum heatsink. 2007. The charging laser and guard lasers are normally invisible to the human eye, but red beams have been inserted here in place of the guard beams for demonstration purposes. “We have designed, constructed and tested this laser-based charging system with a rapid-response safety mechanism, which ensures that the laser emitter will terminate the charging beam before a person comes into the path of the laser.”, The University of Washington engineers behind the wireless charging system for mobile devices.Standing (left-to-right): Vikram Iyer, Shyam Gollakota, Elyas Bayati.Seated (left-to-right): Rajalakshmi Nandakumar, Arka Majumdar.Mark Stone/University of Washington. In 2013 Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS). To ensure that the charging beam does not overheat the smartphone, the team also placed thin aluminum strips on the back of the smartphone around the power cell. As the team reports in a paper published online in December in the Proceedings of the Association for Computing Machinery on Interactive, Mobile, Wearable & Ubiquitous Technologies, a narrow, invisible beam from a laser emitter can deliver charge to a smartphone sitting across a room — and can potentially charge a smartphone as quickly as a standard USB cable. Researchers from the University of Washington have devised a new way to charge a smartphone from across the room using lasers. ACM, New York, NY, USA, 1515--1525. https://doi.org/10.1145/2858036.2858580. In Proceedings of the 2016 ACM SIGCOMM Conference (SIGCOMM ‘16). (2011), 804514-804514-8 pages. To ensure that the charging beam does not overheat the smartphone, the team also placed thin aluminum strips on the back of the smartphone around the power cell. 1074--1076. https://doi.org/10.1109/PVSC.2013.6744326, Rajalakshmi Nandakumar, Vikram Iyer, Desney Tan, and Shyamnath Gollakota. Engineers at the University of Washington have developed a technique for charging your phone from across the room -- using lasers. Engineering  |  News releases  |  Research  |  Science. Scientists, together with those of Indian beginning, have developed a laser emitter that can safely cost a smartphone across a room as promptly as a common USB cable. The entire assembly is only 8mm thick and 40mm wide.Mark Stone/University of Washington. They even harvested a small amount of this heat to help charge the smartphone — by mounting a nearly-flat thermoelectric generator above the heatsink strips. Design of a flexible high performance quadcopter platform breaking the MAV endurance record with laser power beaming. “Safety was our focus in designing this system,” said co-author Shyam Gollakota, an associate professor in the UW’s Paul G. Allen School of Computer Science & Engineering. Ambient Backscatter: Wireless Communication out of Thin Air. Measurement Science and Technology 21, 10 (2010), 105207. The research was funded by the National Science Foundation, the Alfred P. Sloan Foundation and Google Faculty Research Awards. 2012. F Steinsiek, KH Weber, WP Foth, HJ Foth, and C Schafer. Illuminated in red is one of the 3-D printed retroreflectors, which reflects the low-power guard beams to diodes on the laser emitter. Laser power for UAVs. The wireless charging system created by University of Washington engineers. Using a laser to wirelessly charge a smartphone safely across a room 20 February 2018, by James Urton The wireless charging system created by University of Washington engineers. Integrated guided wave generation and sensing using a single laser source and optical fibers. Powering the Next Billion Devices with Wi-fi. Ieee International Conference on Emerging Networking Experiments and Technologies ( CoNEXT ‘ 15 ) endurance... Beam is emitted from the laser emitter that the team configured to produce a focused in. 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