连接Q＆A：网状网络和IOT设备的进步
September 8, 2020
无线连接已成为物联网（物联网）。国际数据公司（IDC）估计将有416亿连接的物联网设备或“事物”，生成2025年的79.4 Zettabytes的数据。网格网络将是在家中启用IoT设备的大量数据的关键机制，城市和企业。Tony Testa提供了一些洞察这一切的所有网格（双关语）在我们的世界以及Qorvo如何发挥活跃部分。
托尼，什么是网状网络？
A mesh network is a topology architecture where the individual nodes are all connected. It may use a single internet access gateway that connects to the individual network nodes or the nodes are connected and communicate with each other on their own. Mesh networking easily extends wireless device range throughout an area such as offices, homes, and even outdoors.
网络中的每个设备都有两种方式可以接收和传输信息。整个网络不依赖于一个设备进行通信，因此，如果节点无法通信，则网络继续通过其他节点工作。这些单独的网络节点和灯泡，电视，平板电脑，设备等的连接设备，使用多种无线标准来沟通。
How do the mesh network nodes work with IoT devices within a home?
今天的网状网络设备不受宽带信号的限制。它们通过多种标准进行通信，用于扩展Wi-Fi，蜂窝，蓝牙的范围和覆盖范围®低能量，ZigBee，线程等。在完整的网状网络中，所有设备都连接并彼此通信。这提供了完全冗余并最大化网络性能。网状网络有效地将信号范围扩展到整个房屋，是一种实惠的解决方案。这增加了与所有设备的可靠性和实时通信。此外，其中一些设备可以存储数据 - 该存储的数据可以提供网络用户节省成本，进一步提高网络可靠性，并使更智能，数据驱动的应用。
网状网络带来了什么好处是在家中携带？
The mesh network offers a self-healing algorithm that automatically chooses the best route to send the data even if some nodes have inadvertently lost connection. The algorithms only allow connections that are available and working. Even when some devices are not working, the whole network still works. Mesh networking also allows devices to communicate with each other without going all the way back to the gateway. Mesh networking offers real-world advantages to IoT applications, as it is always accessible, always on and highly reliable.
Some additional advantages are:
- 来自集线器的各个无线电信号不需要足够强以达到网络的边缘。这意味着，每个节点不需要传输强信号以到达各个集线器，这对于大小和功率受到限制的物联机应用是一个很大的优势。
- Nodes in the network all communicate directly with each other without intervention from the gateway. This reduces latency and the burden on the gateway.
- 当物体妨碍无线电信号时，集线器节点的点对点连接可以裙屏障，因此没有隔离单个节点。
Wi-Fi Tech & Trends
阅读本系列中的其他博客，从Wi-Fi专家Tony Testa获得实用的设计建议。
您是否可以对当今网格网络的用例提供一些洞察力？
Mesh networks provide many benefits to a home, business, or city. For in-building automation, mesh networking can connect hundreds of nodes like sensors, actuators, and other gateways. These provide businesses with connectivity that is self-healing, so if one node fails, another is seamlessly found to take its place. Using a mesh network topology, building automation can be implemented without worry of future changes in layout. The mesh network with IoT also opens the opportunity of Artificial Intelligence (AI), which is a large market on the cusp of exploding.
The latest technology advancement is ultra-wideband (UWB). Can you provide some details on how UWB fits into a home mesh network system?
超宽频或超宽频是专门for location systems. This technology has been around for some time but has recently become of high interest, mostly due toApple integrating the technology in its iPhone 11。
Apple’s UWB technology offers spatial awareness, provides the ability for the phone to recognize its surroundings and other iPhone 11 users in close proximity. This type of location awareness technology can help build a more efficient mesh network, as the network topology can be mapped instantly, and individual nodes can provide pinpoint spatial recognition.
UWB technology provides centimeter positioning precision, essential for spatial recognition applications or other high accuracy applications. The blending of high-throughput Wi-Fi 6 mesh as a backhaul, in combination with the high accuracy UWB, enables a scalable network design.
Tony’s Final Thoughts
Wireless connectivity is migrating its way into every aspect of our lives. This is definitely the case regarding mesh networking and IoT. I provided a small snapshot of technology standards used inside a home mesh and IoT network. Qorvo provides the content for all those wireless technology standards like Wi-Fi, UWB, Thread, ZigBee, Bluetooth Low Energy, and others not mentioned – like cellular, cable and fiber. Our solutions are designed to provide high performance, reliable, fast data speeds, long signal range and small-sized end products that connect us all instantaneously and without interruption.
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