Smart Home Standards go wild at Amsterdam

The Smart Metering and Smart Homes exhibition in Amsterdam is Europe’s largest show for this industry, so it’s a good reflection of where things are at.  Given the amount of noise that’s been generated around ZigBee and its Smart Energy Profile, I’d expected to see most of the other wireless contenders to be absent or skulking in their cages.  However, someone walking around without those preconceptions might have gone home with a rather different view of the state of play.

There’s no doubt that ZigBee is well placed in current smart meter deployments.  Although there are quite a limited number of real ZigBee deployments in Europe, the UK has more or less committed to SEP 1.2 for its foundation phase of national deployment and most meter and IHD suppliers were showing ZigBee products, albeit with not very many sporting a ZigBee certified logo.

Despite that, a significant number of suppliers were also highlighting support for the new Wireless M-Bus standard, which has slithered down the spectrum to its new resting point of 169 MHz.  Wireless M-Bus has always had a popular following within Germany, with an implementation based on a radio running at 868 MHz.  The shift to the lower frequency acknowledges one of the enduring complaints which the 868MHz camp has levelled at 2.4GHz solutions, which is their potentially limited range. 

Whilst 2.4GHz is a frequency that’s fine for most houses, it faces challenges with blocks of flats.  Up until now, the 868 MHz triumvirate of Wireless M-Bus, Z-Wave and wireless KNX had always given the impression that they could achieve adequate range at 868 MHz.  This break in the 868 MHz ranks does not augur well for a reasoned debate, but just increases the in-fighting and paranoia about whether any radio standard works or is ready for deployment.  That’s not what Smart Metering needs. 

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