New radio standard for industrial applications with »energy harvesting« / longer-range radio position switches steute Schaltgeräte

The steute business field »Wireless« is continuing to expand the number of possible industrial applications for its innovative »energy harvesting« radio technology. A few months ago we presented an electrodynamic energy generator which demonstrated a considerably longer lifespan (over a million switching cycles) and a far higher switching frequency (up to 1,800 switching cycles per hour) than previously available components. Now steute is introducing a new radio standard which, amongst other things, has the advantage of a longer-range wireless connection. This makes it possible to operate wireless switchgear at ranges of up to 700m outdoors, without an energy supply. The radio protocol uses the 868 MHz waveband, or 915 MHz in the North American version. The 915 MHz version is certified in accordance with FCC and IC; CSA/UL certification is in preparation.

Users have the choice between two variants. The self-sufficient devices contain a radio circuit board which transmits confirmation of a previously received signal when a radio signal is transmitted. This facilitates – albeit delayed – bidirectional communication. The second variant is contained in our battery-based wireless devices. It confirms an »acknowledge« signal immediately upon receipt, can transmit a repeat signal if required and is also able to »ask« the receiver unit whether or not a signal has arrived. This guarantees the transmission certainty required, even in sensitive applications.

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13 January 2012

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