At the "2014 Industry and Technology Outlook Media Seminar" held by Yiwei News, Mr. Wang Wei, Business Development and Marketing Manager of Freescale Asia Pacific Microcontroller, described the Internet of Things (IoT) and the home gateway as a key node. The future development trend, a "magic box" that can realize various IoT application services such as smart homes - "one box", the era of combining all the boxes is opening!
Smart home is an application scenario under the concept of Internet of Things (IoT). Others include building automation, smart city, smart lighting, smart grid, smart health, industrial automation, and these areas are constantly being involved in the entire wave of development of the Internet of Things. However, if your understanding of the Internet of Things is still limited to the M2M (Machine to Machine) interconnection, you need to update your knowledge immediately.
Different people have different definitions of Internet of Things. Everyone is more familiar with smart phones or other smart devices that control home appliances, sockets, heating, air conditioning and other devices and provide personalized services. The form of machine communication control, but obviously, in Freescale's eyes, the Internet of Things is more than just M2M (machine-to-machine communication).
Figure 1. IoT is not just M2M.
As shown in the example of Figure 1, the Internet of Things is not just M2M. It can also be a machine to infrastructure, such as a sensor feedback network installed on a building such as a bridge to monitor its status, or it can be a machine pair. Machine to Environment, for example, a network that monitors environmental conditions such as moisture, humidity, and temperature in agricultural applications. It can also be Machine to Human. For example, wearable devices, biosensors, etc. can detect various physiological processes of the human body. Data devices, combined with big data, will have a revolutionary impact on the healthcare industry.
Typical network architecture of IoT
In addition to extending the concept of IoT, Freescale also explains the typical network architecture of IoT. The model that today's Internet Service Providers (ISPs) admire is that all "things" are interconnected via WiFi, in the form of a cellular network as a central node. As shown in Figure 2 below.
Figure 2. Models that are now promoted by network service provider ISPs.
“The concept of adding a gateway (box) to this network model is what Freescale believes. In the entire system, WiFi will coexist with other low-bandwidth, low-power communication methods. In addition to the existing infrastructure. Beyond the cellular network, we will have a concept of a gateway (BOX) in each family in the future, which we call an 'integrated box'. Wang Wei said. As shown in Figure 3 below.
Figure 3. Typical network architecture for IoT.
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