Wireless Identification and Sensing Platform
Encyclopedia
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.
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.
WISPs can write to flash and perform cryptographic computations. WISPs have been developed by Intel Research Seattle.
and security
applications.
That is, like a passive
Passive
Passive may refer to:* "Passive" , by A Perfect Circle* Passive voice, a grammatical voice common in many languages* Passive house, a standard for energy efficiency in buildings* Passive psi, psychic abilities involving cognition...
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
Radio
Radio is the transmission of signals through free space by modulation of electromagnetic waves with frequencies below those of visible light. Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of space...
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.
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 cryptographyCryptography
Cryptography is the practice and study of techniques for secure communication in the presence of third parties...
and security
Security
Security is the degree of protection against danger, damage, loss, and crime. Security as a form of protection are structures and processes that provide or improve security as a condition. The Institute for Security and Open Methodologies in the OSSTMM 3 defines security as "a form of protection...
applications.