The popularity of wireless technology has played an important role in this. WiFi, Zigbee and Bluetooth are the primary means of connecting smart home products and mobile devices today.
WiFi
WiFi-based smart home products are the most common because of the popularity of WiFi itself. For the user, the WiFi-based smart home combination is the most trouble-free, and the purchase device can be directly connected to the network.
The Chinese name of WiFi is called wireless hi-fi, feel it. Before the emergence of smart home items that were perceived and controlled in the past two years, WiFi was mainly used for the transmission of large data streams (such as TV boxes and speakers) - so its advantage is that the transmission rate is fast, and the disadvantages are cost and power consumption. Higher.
In addition, because the WiFi smart home requires time-to-time online, the load of WiFi on the ordinary router in the smart home networking is relatively high. According to the data given by several friends in the industry, the load of an ordinary household route is about 8-10 devices, and then stabilized. Sex will change.
Domestic WiFi smart home products include Broadlink, small K sockets and so on.
Zigbee
Zigbee's products seem to be relatively rare, as both WiFi and Bluetooth have been rolled out with the popularity of mobile devices, and Zigbee has previously preferred industrial and engineering applications. Zigbee is characterized by low power consumption, low cost, large network capacity, and low transmission rate.
Generally speaking, Zigbee is rarely used for data stream transmission, but it is very suitable for fragmented information transmission such as smart home sensing and control.
Zigbee's networking method is to connect WiFi devices to the mobile device, and then a WiFi-to-Zigbee hub controls all Zigbee items. Ordinary families have no Zigbee infrastructure in the past, so the difficulty in promoting such smart home products is to launch the Zigbee Hub. Fortunately, Zigbee hardware is the cheapest of the three.
Bluetooth
Bluetooth is a peer-to-peer communication method whose main purpose is to serve mobile devices. The power consumption and cost of Bluetooth are between the first two, but the transmission distance is the shortest. Depending on the mobile device and the transmission over a short distance, the Bluetooth product will also provide some more personal experience, such as Bluetooth anti-lost device, Bluetooth speaker, smart scale.
The positioning of the three types of communication technology, WiFi is the infrastructure, Zigbee acts as a means of connection between devices (M2M), Bluetooth services mobile devices. WiFi and Bluetooth now have a lot of terminal support, but they are not the best solution for home networking. For Zigbee, the problem is to find a reasonable way to lay out the terminal.
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