你的物联网或我的？
2016年6月20日
When it comes to theInternet of Things (IoT), there's only one thing we all agree on: we don't agree on what it is.
Need proof? Here are a few recent forecasts about the number of IoT devices anticipated by 2020, starting with the most conservative:
- 由2020年，Gartner的210亿台设备
- 380亿台设备到2020年，瞻博网络研究
- 50 billion devices by 2020, Cisco and Ericsson
- 50.1 billion devices by 2020, World Economic Forum
- 2020年，英特尔和IDC的2000亿台设备
它看起来像Gartner和英特尔对小数点的地方不同意。
Though the IoT is extremely difficult to define, the explanation offered by Cees Links, general manager of Qorvo's Low Power Wireless business unit, is a good place to start: IoT "things" must be able to speak to other devices and systems, as well as utilize web intelligence to become smarter over time. The IoT is about delivering services, not just about gadgets.
With Cees' wisdom in mind, here's a look at what the IoT is — and what it isn't.
Figure source:Wikimedia Commons
What the IoT isn't
Contrary to what some UFO spotters and Bigfoot fans believe, the IoT is not about government mind control.
The IoT isn't about "wearables" either. If your fitness tracker bracelet, watch or clip-on is connected to your智能手机，但不是互联网，它不是一个真正的IoT设备。您的智能手机控制的车库门开启器，迷你室内无人机和Pesky RFID标签的销售员忘了从新的LED T恤中取出。
If it isn’t networked, it isn’t the IoT.
The IoT also isn’t standardized. It’s the reason why syncing your smartphone to your car, or to your security system, or to your new smart toaster typically involves a slew of expletives. Behind the scenes, there are multiple wireless standards competing with each other.
为了安全，充分发挥作用连接的车, you need 4G (LTE) to the car, but various flavors of RF within the car for “infotainment,” enhanced driver awareness and safety.
Competing wireless standards are also responsible for bandwidth bottlenecks in the home. You may start with a 100 Mbps connection, but by the time the kids have streamed House of Cards and the smart thermostat finishes downloading its latest update, you’re back on dial-up.
长话短说，行业领先的公司需要达成一致标准将支持IOT和设备兼容性。在此之前，您将继续使用Wi-Fi启用的Can Opener争取带宽。
What the IoT is
Even though your puppy just ordered 17 boxes of detergent while gnawing on your Amazon Dash button, the IoT does offer the promise of making our lives easier.
The IoT is held together by RF technology, from smart homes tosmart energysolutions like connected lighting. ZigBee is certainly one key enabling RF technology for IoT that offers short range, low power wireless communication. The applications of ZigBee are numerous, from home gateways/set-top boxes and smart home sensors to industrial applications on the factory floor.
物联网不仅仅是闪亮的,聪明的消费者evices. The Industrial IoT (IIoT), though often overshadowed by the endless parade of smart toothbrushes and other novel gadgets, is very important. Smart grids, smart buildings and smart manufacturing have far-reaching implications; in fact, GE and Intel predict that 46 percent of the global economy can benefit from “the industrial network of connected machines.” It’s a wonder this quiet revolution is so seldom talked about, when a nuclear reactor telling the cooling tower to send more water seems a bit more important than losing connection to a Barry Manilow MP3.
IOT：难以定义，但充满潜力。
Now if you'll excuse me, my refrigerator is calling.
This article first appeared inBrent's Musings上Microwave Journal.
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