Shulou(Shulou.com)05/31 Report--

This article mainly introduces the relevant knowledge of "what is Weave". The editor shows you the operation process through actual cases, and the operation method is simple, fast and practical. I hope this article "what is Weave" can help you solve the problem.

The role and core of Weave

Weave is the framework that Nest uses to enable thermostats, smoke detectors and cameras to communicate directly with each other without going through a home network or cloud.

Weave is an application protocol that can work on many networks, such as Thread, Wi-Fi, low-power Bluetooth, and even cellular networks. Weave allows devices to collaborate securely with each other, even if they are on different networks. We can add Weave functionality through OpenWeave, the open source version of Weave.

The core of Weave has four layers.

In summary, the structural state layer uses the basic transport of TCP,UDP and BLE to deliver messages. TCP and UDP use both IPv4 and IPv6 on technologies such as Thread and WiFi, while BLE is considered an unrouted point-to-point link.

Zigbee and Thread

In the past few years, there has been a battle for short-range, low-power protocols between smart home IoT applications between ZigBee and Thread. ZigBee started in 2005 and there are millions of devices on the market. Thread, from Google Nest Labs, was founded in 2015.

This is an interesting announcement because:

Thread/Weave is owned by Google/Nest, but is now teamed up with two other companies (Amazon and Apple).

The new standard will be managed by Zigbee.

Both ZigBee (3.0/pro) and Thread are based on the same physical and link layer protocol stack-IEEE 802.15.4 open standard. Their biggest competitor in this area, Z-Wave, uses proprietary Z-Wave standards.

The shared physical / Mac layer provides a great advantage for leveraging the same hardware / chip solution and lays the foundation for this collaboration opportunity.

The main differences between Zigbee (3.0/pro) and Thread are as follows:

Thread leverages Internet protocol version 6 (IPv6), which provides a natural connection between Thread networks and existing IPv6-based networks, such as Wi-Fi, Ethernet, or 4G/5G cellular standards. Zigbee is built from scratch, and each node in the network has a 16-bit address that must be converted to IP using an application layer gateway.

Thread does not define a specific application layer, while Zigbee defines all the layers in the OSI model. In terms of application layer selection, this makes Thread a more flexible choice. On the other hand, because Zigbee specifies the application layer, the application layer is guaranteed to be more interoperable.

Thread authentication and debugging is based on smartphones, while in Zigbee, authentication is centralized through a trust center with proximity-based debugging.

Weave Fabric

A Weave fabric is a network that includes all home area network (HAN) nodes, Nest services, and any mobile device that participates in the HAN. This structure sits on top of HAN and makes routing across different underlying network link technologies, such as Thread or Wi-Fi, easier.

ZigBee,Z-wave,Thread,BLE and other proprietary standards divide the Internet of things battlefields in smart homes. With the development of the market size of Google Home,Amazon Alexa and Apple Homekit, this new development will change the game plan and contribute to the development of technology to create a stronger and more secure HAN.

This is the end of the content about "what is Weave". Thank you for reading. If you want to know more about the industry, you can follow the industry information channel. The editor will update different knowledge points for you every day.

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