We Continue the Work of Those
Who Were the First.

  • Electrotechnics
  • Electrical Engineering
  • Light & Lighting
  • Power Engineering
  • Transportation
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  • Communication
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Current issue

ELEKTRO 12/2018 was released on December 12th 2018. Its digital version will be available on January 1st 2019.

Topic: Measurement engineering and measuring instruments; Testing industry and diagnostics

Main Article
Thermovision measurement in electrical power engineering
Smart Cities (part 5)

SVĚTLO (Light) 6/2018 was released on December 3rd 2018. Its digital version will be available on January 4th 2019.

Luminaires and light apparatuses
Modular floodlights Siteco
Decorative luminaire PRESBETON H-E-X from the integral series town equipment
LED luminaires ESALITE – revolution in sphere of industrial lighting

Daylight
About median illumination by daylight
Professional colloquium Daylight in practice

No-power Wi-Fi connectivity could fuel Internet of Things reality

21.08.2014 | |

University of Washington engineers have designed a new communication system that uses radio frequency signals as a power source and reuses existing Wi-Fi infrastructure to provide Internet connectivity to these devices. Called Wi-Fi backscatter, this technology is the first that can connect battery-free devices to Wi-Fi infrastructure.

This work builds upon previous research that showed how low-powered devices such as temperature sensors or wearable technology could run without batteries or cords by harnessing energy from existing radio, TV and wireless signals in the air. This work takes that a step further by connecting each individual device to the Internet, which previously wasn’t possible.

…read more

picture and video: University of Washington