显示页面 讨论 修订记录 反向链接 本页面只读。您可以查看源文件,但不能更改它。如果您觉得这是系统错误,请联系管理员。 Thread is an IPv6-based, closed-documentation (paid membership required for access to specifications[1]) royalty-free[2] networking protocol for Internet of Things (IoT) "smart" home automation devices to communicate on a local wireless mesh network.[3] In July 2014, the "Thread Group" alliance was announced, which today is a working group with the companies Nest Labs (a subsidiary of Alphabet/Google), Samsung, ARM Holdings, Qualcomm, NXP Semiconductors/Freescale, Silicon Labs, Big Ass Solutions, Somfy, OSRAM, Tyco International, and the lock company Yale in an attempt to have Thread become the industry standard by providing Thread certification for products.[4] Thread uses 6LoWPAN, which in turn uses the IEEE 802.15.4 wireless protocol with mesh communication, as does ZigBee and other systems. Thread however is IP-addressable, with cloud access and AES encryption. It currently supports up to 250 devices in one local network mesh.[5] An "AS IS" BSD licensed free and open-source implementation of Thread (called "OpenThread") has also been released by Nest.[6] ===Competing IoT protocols=== Other competing Internet of Things (IoT) protocols currently already in wide use globally include ZigBee, Z-Wave, and Bluetooth LE (also known as Bluetooth Smart).[7]