POSTER:computer news || INVENTED A WAY TO POWER THE SENSORS FROM WI-FI SIGNAL
DATE:2014-08-10
Engineers at the University of Washington have found an opportunity to get the right amount of energy from the regular Wi-Fi-signal router and at the same time ensure the transfer of unique data from the sensor. The process took very little power. The data rate was small - about 1 kbit / s and the distance - between two meters. But the sensor did work without their own power supply. All necessary supply of energy was captured by radio waves.
All the fun is how organized the transfer of data that does not require some other power. Autonomous sensor carried antenna with controllably change the effective area of reflection.
In the next step, the developers say, the range of the wireless sensors without fully autonomous battery will be extended to 20 meters. A more complete report on the development, they promise to present on Data Communication Conference 2014, which will be held this month in Chicago.
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INVENTED A WAY TO POWER THE SENSORS FROM WI-FI SIGNAL
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