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Smart Home Industry Aims for Better Compatibility with New Protocol

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Dec 18, 2019, 12:21 PM   by Rich Brome   @rbrome

Amazon, Apple, and Google have joined forces on a new working group within the ZigBee Alliance to create a new, royalty-free connectivity standard to increase compatibility among smart home products. The new group, called Project Connected Home over IP, will take an open-source approach for the development and implementation of the new protocol, including a specific set of IP-based networking technologies for device certification. By basing the new standard on IP (internet protocol) technology, the need for proprietary smart home "hubs" should be reduced or eliminated, and proven security technologies can be used. The first version of the standard will be designed to work over three different radio types: Wi-Fi (up to and including Wi-Fi 6), Bluetooth LE 4.1-5.0, and 802.15.4 (using Google's Thread at 2.4 GHz). The first compatible devices may implement the new protocol over any one (or more than one) of the three radio types, in addition to existing smart home protocols. Rather than starting from scratch, the group intends to accelerate development by leveraging existing, market-tested technology contributed by the founding companies. Google will contribute its Weave and Thread technologies, both of which are used in its Nest products. Apple will contribute HomeKit, Amazon will contribute its Alexa Smart Home technology, and the Zigbee Alliance will contribute its Dotdot data models. Other participating companies include Samsung SmartThings, IKEA, Legrand, NXP Semiconductors, Somfy, Resideo, Schneider Electric, Signify (formerly Philips Lighting), Silicon Labs, and Wulian. The Working Group has a goal to release a draft specification and a preliminary reference open source implementation in late 2020.

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