Wireless identification and sensing platform

WISP
Developer	Intel Research Seattle
Written in	C, Assembly
OS family	Embedded operating systems
Working state	Current
Source model	Open source
Latest release	5.1
Marketing target	Wireless sensor networks
License	Creative Commons Attribution License
Official website	https://wisp5.wikispaces.com/

A wireless identification and sensing platform (WISP) is an RFID (radio-frequency identification) device that supports sensing and computing: a microcontroller powered by radio-frequency energy.^[1] That is, like a passive RFID tag, WISP is powered and read by a standard off-the-shelf RFID reader, harvesting the power it uses from the reader's emitted radio signals. To an RFID reader, a WISP is just a normal EPC gen1 or gen2 tag; but inside the WISP, the harvested energy is operating a 16-bit general purpose microcontroller. The microcontroller can perform a variety of computing tasks, including sampling sensors, and reporting that sensor data back to the RFID reader. WISPs have been built with light sensors, temperature sensors, and strain gauges. Some contain accelerometers.^[2] WISPs can write to flash and perform cryptographic computations. The WISP was originally developed by Intel Research Seattle, but after their closure development work has continued at the Sensor Systems Laboratory at the University of Washington in Seattle.

Implementation

The WISP consists of a board with power harvesting circuitry, demodulator, modulator, microcontroller, external sensors, and other components such as EEPROM and LED.

Applications

WISPs have been used for light level measurement, acceleration sensing, cold chain monitoring (passive data logging), and cryptography and security applications.

References

^ A. Mitrokatsa; C. Dougligeris (2009). "Integrated RFID and sensor networks: architectures and applications". In Y. Zhang; L. Tianruo Yang; J. Chen (eds.). RFID and sensor networks: architectures, protocols, security, and integrations. CRC Press. p. 517. ISBN 978-1-4200-7777-3. {{cite book}}: Unknown parameter |lastauthoramp= ignored (|name-list-style= suggested) (help)
^ E. M. Tapia; S. S. Intille; K. Larson (2007). "Portable wireless sensors for object usage sensing in the home: challenges and practicalities". In B. Schiele; A. K. Dey; H. Gellersen (eds.). Ambient intelligence: European conference, AmI 2007, Darmstadt, Germany, November 7-10, 2007 : proceedings. Springer. p. 23. ISBN 978-3-540-76651-3. {{cite book}}: Unknown parameter |last-author-amp= ignored (|name-list-style= suggested) (help)

External links

[1] A. Mitrokatsa; C. Dougligeris (2009). "Integrated RFID and sensor networks: architectures and applications". In Y. Zhang; L. Tianruo Yang; J. Chen (eds.). RFID and sensor networks: architectures, protocols, security, and integrations. CRC Press. p. 517. ISBN 978-1-4200-7777-3. {{cite book}}: Unknown parameter |lastauthoramp= ignored (|name-list-style= suggested) (help)

[2] E. M. Tapia; S. S. Intille; K. Larson (2007). "Portable wireless sensors for object usage sensing in the home: challenges and practicalities". In B. Schiele; A. K. Dey; H. Gellersen (eds.). Ambient intelligence: European conference, AmI 2007, Darmstadt, Germany, November 7-10, 2007 : proceedings. Springer. p. 23. ISBN 978-3-540-76651-3. {{cite book}}: Unknown parameter |last-author-amp= ignored (|name-list-style= suggested) (help)

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