Powercast Demonstrates RF-Powered, Battery-Free Wireless Sensor Module at Sensors Expo 2010
Pittsburgh PA, USA ??? Powercast Corporation, was an exhibitor at the Sensors Expo & Conference on June 7-9, 2010 . At the event, Powercast?? demonstrated a battery-free wireless sensor module powered by RF energy and designed for extremely low power consumption. The sensor module provides temperature, light level, and humidity data to an access point, along with the received signal strength (RSSI) and the ID number of the Powercaster??? transmitter from which it is receiving power.
Powercast recently released the P1110 and P2110 Powerharvester??? Receivers, which are capable of converting radio waves in the range of 850-950 MHz into DC power.The demonstration sensor module uses the P2110 Powerharvester receiver to store the received energy into a capacitor, and then performs a voltage boost to supply the module components with a regulated voltage.
Both the P1110 and P2110 enable a microcontroller to determine the signal strength of the received power, as well as to recover low-rate data encoded in the power broadcasted from the power transmitter.
Microchip Technology Inc. provided software and hardware development support for both the sensor module and the access point.
The devices use PIC?? microcontrollers featuring XLP eXtreme Low Power technology, and the MRF24J40MA agency-certified IEEE 802.15.4??? radio module, resulting in high-performance, low power processing and communications. Microchip???s MiWi??? P2P protocol provides the reliable, short-duration messaging required for the optimal performance of the harvesting system.
???We see great potential in the use of energy harvesting to power a growing network of low-power wireless devices,??? said Jason Tollefson, a product marketing manager at Microchip.
???The sensor module developed with Powercast, using Microchip???s XLP technology, is a unique and powerful demonstration of using radio waves as an on-demand source of energy for a battery-free wireless sensor.???
Harry Ostaffe, Director of Marketing and Business Development for Powercast, also delivered two presentations during the event.
During the pre-conference symposium on June 7, 2010, he spoke on ???Design Techniques for RF Energy Harvesting Devices.???
During the main conference on June 8, 2010, he presented ???Power Out of Thin Air: Ambient RF Energy Harvesting for Wireless Sensors.???
About Powercast (www.powercastco.com)
Powercast Corporation is a leading innovator of RF energy harvesting and wireless power technology. Founded in 2003, Powercast???s proprietary core technology and related intellectual property pioneered the model for completely untethered electronic devices by transmitting and harvesting common radio waves similar to those in wireless communications. Powercast???s technologies eliminate or reduce the need for batteries, extend sensor networks into hard-to-service locations, and enable greater system efficiency in applications such as building automation and energy management.
About Microchip (www.microchip.com)
Microchip Technology Inc. (NASDAQ: MCHP) provides low-risk product development, lower total system cost and faster time to market for thousands of eXtreme Low Power applications. From low power Analog, RF and Memory devices, to more than 75 PIC?? Microcontrollers featuring XLP Technology and peripherals like LCD and USB, as well as over 600 more that offer integration such as Ethernet, Graphics and Capacitive Touch Sensing, our devices along with our free software and tools, provide a custom fit in your energy harvesting design.
Note: The Microchip name and logo, and PIC are registered trademarks of Microchip Technology Inc. in the USA and other countries. All other trademarks mentioned herein are the property of their respective companies.
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