The application of "smart home article" WiFi in smart home

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when designing a smart home system solution, a critical point is the networking approach. The network mode is related to the stability, expansibility and real-time of the whole intelligent home system, and is considered from the aspects of installation and maintenance. For the networking mode. I think no one is going to build a wired smart home network right now. Oh..

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So, we have no doubt chose the wireless network mode!

There are many wireless networking methods, such as ZigBee, Wifi, Z-wave and so on. Of course, a complete intelligent home system can not only adopt a simple wireless communication method for networking. It's very often used in combination.

Confined to space. In this paper, only one of the wireless communication WiFi in the smart home Network application to explain. WiFi This day in the radiation of our things, I believe we are more familiar with! Of course. WiFi is a kind of electromagnetic radiation. Today's recognized WiFi radiation is harmless.

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WiFi uses a star-shaped network topology. And an important feature is the large amount of data transmitted, can transmit video stream.

So. Below we do a simple networking:

Figure 1 WiFi Networking

1, first. Computers, tablets, and mobile phones will have their own WiFi modules, so they communicate with the smart router over WiFi.

2, for television, if the TV broadcast is network TV or network video, you need to use WiFi.

In particular, most of today's TVs are equipped with WiFi or USB ports, which can be used to connect storage devices such as USB drives and WiFi modules that can be connected to the dongle.

3, and access to the visual intercom need online video, that is, when someone in front of your door rang the doorbell. The surveillance camera outside the door transmits real-time monitoring video to the home's access visual intercom terminal. The transmission of this video stream needs to be carried out using WiFi or a wired network.

When we understand what home devices should use WiFi, the next thing we need to do is how to connect these devices to the smart router.

For devices that have a display interface, such as mobile phones, computers, and so on, can connect to the smart router via wireless settings. But what about devices with no operating display interface? In fact, there is a solution, the WiFi Alliance has introduced a new technology called WPS (WiFi Protected Setup), which requires router support.

When we need to connect a device with a non-operating display interface to the network, we simply need to press Wpsbutton on the router and then press the connected button on the device to make the connection, and of course the connection button on the device needs to be implemented by the developer. The implementation method is very much, in this section does not make the concrete explanation, perhaps the chapter will carry on the concrete analysis.

Only, the WPS technology has the security hidden danger. Easy to be cracked. Then Texas Instruments (TI) company based on WPS launched a more advanced WiFi connection technology, called Simplelinks, the technology needs to use the software on the mobile phone to achieve the connection between the WiFi device and the router, the technology in certain procedures to overcome the existence of WPS security hidden trouble.

Perhaps the chapter will analyze the principle of WiFi technology, please look forward to!

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The application of "smart home article" WiFi in smart home