Wireless identification and sensing platform
| Developer | Intel Research Seattle |
|---|---|
| Written in | C, Assembly |
| OS family | Embedded operating systems |
| Working state | Current |
| Source model | Open source |
| Latest release | 4.1.0 / March 2009 |
| Marketing target | Wireless sensor networks |
| License | Creative Commons Attribution License |
| Official website | http://wisp.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. WISPs have been developed by Intel Research 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 and C. Dougligeris (2009). "Integrated RFID and sensor networks: architectures and applications". In Y. Zhang, L. Tianruo Yang, and J. Chen (ed.). RFID and sensor networks: architectures, protocols, security, and integrations. CRC Press. p. 517. ISBN 9781420077773.
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E. M. Tapia, S. S. Intille, and K. Larson (2007). "Portable wireless sensors for object usage sensing in the home: challenges and practicalities". In B. Schiele, A. K. Dey, and H. Gellersen (ed.). Ambient intelligence: European conference, AmI 2007, Darmstadt, Germany, November 7-10, 2007 : proceedings. Springer. p. 23. ISBN 9783540766513.
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