Wi-Fi HaLow: The Solution for Smart Homes

2022-12-24 03:37:28
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Wi-Fi HaLow: The Solution for Smart Homes
Illustration: © IoT For All

Is your “smart” home behaving like a dumb house? There is hope. Wi-Fi HaLow delivers a secure, reliable connection for all your connected devices. Consumers have embraced the concept of relying on convenient, internet-connected devices to automate functions within their homes. Gone are the days of manually setting the thermostat or putting lights on mechanical timers. Now these functions can be controlled from anywhere via a smart phone app or even by AI in the cloud. Broadband service connections provide ample bandwidth and low latency to the home, but a good wireless link between modem and devices has proved elusive.

'IEEE 802.11ah Wi-Fi HaLow™ is the technology that can solve issues faced by existing wireless solutions— using a scalable industry standard.' -Morse MicroClick To Tweet

Is Wi-Fi the Answer?

Wi-Fi was the promised last link to bring everything together. Manufacturers rushed to fill the demand for connected appliances, security systems, door locks, switches, lights, garage door openers, and virtual assistant speakers. By providing new convenience and functionality to the homeowner, while gathering analytics and extending reach of diagnostic capabilities, manufacturers have found ways to offset the additional manufacturing and maintenance costs of connected devices. Consumers have assumed that device-makers have used safe and secure architectures for deploying and maintaining their services.

However, several common problems have plagued the varied use scenarios of these connected products. High power consumption of traditional Wi-Fi connections, dead spots, and poor coverage due to varied home construction techniques and building materials. Additionally, crowded 2.4GHz and 5GHz RF spectrum, complex deployment/setup procedures, and hackers exploiting holes in security. Consumers’ expectations of simple, reliable, and secure connections have driven manufacturers to cobble together a mix of proprietary wireless technologies that are costly to install.

Consumers have been forced to use proprietary wireless hub devices running on Zigbee, Z-wave, Bluetooth and other non-standard RF techniques, and bridge it to the Wi-Fi router. They have come to believe that frequent battery replacements or AC power supplies are needed. They have been forced to use network extenders for devices located far from the router. In the absence of better long-distance solutions, manufacturers have fallen back on power-hungry cellular phone technology with recurring subscription fees and unpredictable data use charges. Hackers have exploited holes in the security of thinly protected authentication protocols on devices which do not have the capacity for OTA updates to respond to new threats.

Wi-Fi HaLow Advantages

IEEE 802.11ah Wi-Fi HaLow™ is the technology that can solve issues faced by existing wireless solutions— using a scalable industry standard. It is purpose-built for the specific needs of IoT devices. Wi-Fi Halow has longer distances, lower power dissipation, better penetration through building materials, adequate bandwidth, improved network capacity, ease of deployment and installation, lifecycle security, over-the-air (OTA) updates and low cost of materials. Let’s look into each of these requirements separately:

#1: Distance

The sub-1GHz frequencies of Wi-Fi HaLow using narrow 1MHz channels travels ten times farther than legacy Wi-Fi, without the need for network extenders. Battery-powered cameras can be placed in more convenient locations where they are needed outside the walls of a home or garage. Lighting systems can be controlled from a single AP, regardless of whether the fixture is indoors or out in the garden. Providing customers with a solution that reaches 100m farther — without additional extenders or cellular data plans — is a huge competitive advantage.

#2: Power

Wi-Fi HaLow requires less power than conventional Wi-Fi to reach longer distances, while providing adequate bidirectional data transfers. Various new sleep modes are specified by IEEE 802.11ah that allow devices to stay in very low power states for extended periods of time — conserving battery energy.

#3: Battery Consumption

Wi-Fi HaLow can be powered by a simple coin cell battery with average power consumption below 10uW. With such low power, HaLow can be used in devices which historically had to rely on Zigbee, Bluetooth, or proprietary technologies.

#4: Penetration

Wi-Fi HaLow’s superior reach through buildings will reduce customer service calls and product returns that plague products based on ordinary Wi-Fi. The lower frequencies used by Wi-Fi HaLow penetrate through various building materials better than 2.4GHz and 5GHz, while consuming less power. Wi-Fi HaLow uses OFDM modulation to correct for reflections and multi-path environments. Device manufacturers can be assured of a robust HaLow connection to the AP, whether their products are placed inside or outside, or whether in the basement or the attic of a home. This eliminates the added complexity and cost of supplying proprietary hub or bridge devices to compensate for consumers’ varied home architectures across the globe.

#5: Bandwidth

Similar to traditional Wi-Fi, Wi-Fi HaLow can automatically scale bandwidth depending on signal integrity and distance from the AP. These pre-defined Modulation and Coding Scheme (MCS) levels support bandwidths from 150Kbps to 40Mbps for single-stream, single-antenna (1×1) products using channel widths varying between 1, 2, 4 and 8MHz, with up to 80Mbps capability using an optional 16MHz wide channel. Automatic selection of the most appropriate MCS rate ensures that data is transferred quickly.

This is important as the faster the data transfer is, the less battery energy used, and the less time the device needs on the radio waves — thus leaving them free for use by other devices.

#6: Security

IEEE 802.11ah includes the latest Wi-Fi requirements for authentication (WPA2/WPA3) and AES encryption of traffic over the air.

#7: Capacity

Up to 8,191 devices can be addressed by a single Wi-Fi HaLow AP. That should be enough capacity to cover every light bulb, door lock, window shade, thermostat, and every imaginable smart home device for the distant future.

The Reliable & Connected Choice

Typical Wi-Fi routers for the home only support tens of devices. If deployed into the home by a broadband service provider, the Wi-Fi HaLow AP can become a platform for additional revenue via subscriptions to security and utility management devices and services for one or more homes in a neighborhood. HaLow is a star network topology and does not suffer from the capacity problems of mesh networks. With a mesh network, the radio spectrum gets congested with duplicates of the same messages being sent over and over again.

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  • Connectivity
  • Remote Management
  • Sensors
  • Smart Home Automation
  • WiFi

  • Connectivity
  • Remote Management
  • Sensors
  • Smart Home Automation
  • WiFi

参考译文
Wi-Fi HaLow:智能家居的解决方案
图示:© IoT For All --> 你的“智能”家居表现得像一个傻房子吗?别担心。Wi-Fi HaLow 能为你的所有连接设备提供安全、可靠的连接。消费者已接受使用便利的互联网连接设备来自动化家中功能的理念。手动设置恒温器或使用机械定时器控制灯光的日子早已一去不复返。如今,这些功能可以通过智能手机应用,甚至通过云端的人工智能从任何地方进行控制。宽带连接为家庭提供了充足的带宽和低延迟,但调制解调器和设备之间的良好无线连接却一直是个难题。“IEEE 802.11ah Wi-Fi HaLow™ 是一种能解决现有无线解决方案所面临问题的技术——它使用了可扩展的行业标准。” ——Morse Micro点击推文 Wi-Fi 是答案吗? Wi-Fi 曾被寄予厚望,作为将所有设备连接在一起的最后一环。制造商迅速填补了对联网家电、安全系统、门锁、开关、灯光、车库门开启器和虚拟助手音箱的需求。通过为房主提供新的便利和功能,同时收集分析数据并拓展诊断能力的范围,制造商找到了抵消联网设备额外制造和维护成本的方法。消费者理所当然地认为,设备制造商使用了安全且可靠的架构来部署和维护他们的服务。然而,这些联网产品在各种使用场景中却面临一些普遍的问题。传统 Wi-Fi 连接高耗电、信号盲区多、因建筑结构和材料不同而导致的覆盖不良。此外,2.4GHz 和 5GHz 频段拥挤、部署和设置过程复杂,以及黑客利用安全漏洞。消费者对简单、可靠且安全连接的期望,促使制造商拼凑起多种专有无线技术,而这些技术安装成本高昂。消费者被迫使用基于 Zigbee、Z-wave、蓝牙等非标准射频技术的专有无线集线器设备,并将其桥接到 Wi-Fi 路由器。他们逐渐认为频繁更换电池或使用交流电源是必要的。他们还被迫使用网络扩展器来解决远离路由器的设备信号问题。在缺乏更优长距离解决方案的情况下,制造商只能依赖耗电量大的蜂窝技术,而这种技术需要持续的订阅费用和不可预测的数据使用费。黑客则利用了设备上未充分保护的认证协议漏洞,而这些设备无法通过空中更新(OTA)来应对新威胁。 Wi-Fi HaLow 优势 IEEE 802.11ah Wi-Fi HaLow™ 是一种能解决现有无线解决方案所面临问题的技术——它使用了可扩展的行业标准。它专为物联网设备的需求而设计。Wi-Fi HaLow 具备更远距离、更低功耗、更好的建筑材料穿透能力、足够的带宽、改进的网络容量、简便的部署和安装、生命周期安全性、空中更新(OTA)功能以及低廉的材料成本。让我们逐一了解这些优势: #1:距离 Wi-Fi HaLow 使用低于 1GHz 的频率和窄 1MHz 信道,其传输距离可达传统 Wi-Fi 的十倍,而无需使用网络扩展器。电池供电的摄像头可以放置在家中或车库外更方便的位置。无论灯具是在室内还是花园中,都可以通过单一接入点(AP)进行控制。为客户提供比传统方案远达 100 米的解决方案——无需额外扩展器或蜂窝数据套餐——将是一个巨大的竞争优势。 #2:功耗 Wi-Fi HaLow 在实现更远传输距离的同时,功耗低于传统 Wi-Fi,并且提供足够的双向数据传输。IEEE 802.11ah 为设备定义了各种新的休眠模式,使设备可在很长一段时间内保持在极低功耗状态,从而节省电池能量。 #3:电池消耗 Wi-Fi HaLow 可由简单的纽扣电池供电,平均功耗低于 10 微瓦。凭借如此低的功耗,HaLow 可用于以往必须依赖 Zigbee、蓝牙或专有技术的设备中。 #4:穿透能力 Wi-Fi HaLow 在建筑中的优越覆盖能力将减少困扰基于传统 Wi-Fi 产品的客户服务请求和产品退货。Wi-Fi HaLow 使用的较低频率比 2.4GHz 和 5GHz 更能穿透各种建筑材料,同时功耗更低。Wi-Fi HaLow 使用正交频分复用(OFDM)调制技术,以纠正反射和多路径环境的问题。设备制造商可确保 HaLow 与 AP 的连接稳定可靠,无论是室内还是室外,无论是地下室还是阁楼。这消除了为全球不同家庭结构的消费者提供专有集线器或桥接设备的复杂性和成本。 #5:带宽 类似传统 Wi-Fi,Wi-Fi HaLow 可根据信号完整性和与 AP 的距离自动调整带宽。这些预定义的调制和编码方案(MCS)等级支持从 150Kbps 到 40Mbps 的带宽,适用于单流、单天线(1×1)产品,信道宽度在 1、2、4 和 8MHz 之间可调,可选 16MHz 宽信道可提供高达 80Mbps 的带宽。自动选择最合适的 MCS 速率可确保数据的快速传输。这点很重要,因为数据传输越快,所需电池能量越少,设备占用无线信道的时间也越短——从而使其他设备能自由使用信道。 #6:安全性 IEEE 802.11ah 包含了最新的 Wi-Fi 认证要求(WPA2/WPA3)以及空中传输数据的 AES 加密。 #7:容量 单个 Wi-Fi HaLow AP 最多可连接 8191 个设备。这一点应足以在未来很长一段时间内覆盖每个灯泡、门锁、窗帘、恒温器和所有可想象的智能家居设备。 可靠的连接选择 传统的家庭 Wi-Fi 路由器仅支持几十个设备。如果由宽带服务提供商部署到家庭中,Wi-Fi HaLow AP 可以成为通过订阅安全和公用事业管理设备和服务获取额外收入的平台,适用于一个或多个家庭。HaLow 采用星型网络拓扑结构,不受网状网络容量问题的困扰。在网状网络中,无线频谱会因相同的重复消息不断传输而变得拥挤。推文分享分享邮件 连接性远程管理传感器智能家居自动化Wi-Fi --> 连接性远程管理传感器智能家居自动化Wi-Fi
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