Bluetooth-mesh Technology in Smart Home

What is the most widely used wireless technology in the world? The answer is Bluetooth®. The popularity of Bluetooth technology on smartphones is expected to cover 96% of the world's mobile phones by 2019. However, mobile phones are not the only application of Bluetooth technology. The development of the Internet of Things and smart homes will bring broader space for the development of Bluetooth technology in the future. But before that, Bluetooth technology needs to make up for its own shortcomings, that is, networking capabilities.

What are the disadvantages of each of the three mainstream technologies: Bluetooth, Wi-Fi and ZigBee (a short-range, low-power wireless communication technology). The advantages of Bluetooth are low power consumption, low cost, strong customizability, and a relatively short development cycle. Compared with Bluetooth, the connection distance of Wi-Fi can be farther, but it can only withstand about 20 devices at most, otherwise the network will be disconnected frequently, and there is no ZigBee to be stable. However, ZigBee has a higher cost and a longer development cycle. Therefore, when traditional products are intelligent, the control of a single product is mainly based on Wifi technology, such as ceiling lamps, colored light bulbs, bedside lamps, and there are not too many three or four of each product in the home. However, with the popularization of smart products, for example, 15 downlights, 4 spotlights, an 8-head chandelier in the middle, and the main lights in other rooms, for example, need to use 15 downlights, 4 spotlights, and the main lights in other rooms. If these devices are still Simply using Wifi will cause the router at home to crash.

Since the Bluetooth SIG announced the establishment of the Bluetooth Smart Mesh Working Group in 2015, the Bluetooth SIG is working with members to develop global standards for Bluetooth Smart Mesh and define functional requirements for Bluetooth Smart mesh networks. In April 2020, Xiaomi ecological chain enterprise Yeelight took the lead in launching the smart Bluetooth products developed in cooperation with Xiaomi IoT, and released three second-generation products at the same time - color temperature downlight M2, color temperature spotlight M2, and color temperature bulb M2.

Both Xiaomi and Tmall have begun to deploy a large number of Bluetooth devices. I believe that in 2020, the year of the explosion of Bluetooth mesh products, more and more products will enter the Bluetooth mesh family. For users, the whole house intelligence is more and more distant from us. close.