Xiaomi brand locks are still very good. Since smart locks began to attract everyone's attention, questions such as "Does Xiaomi have a smart lock?" and "When will Xiaomi release a smart lock?" have been constantly asked. On November 28, at the 2018 MIDC Xiaomi AIoT Developer Conference, Xiaomi finally announced the launch of the Mijia smart door lock, which features integrated live fingerprint recognition and multiple door opening methods, as well as Mijia app linkage. Since it bears the Xiaomi label, everyone is naturally looking forward to the price. However, Xiaomi did not reveal the price of this lock at the AIoT conference, and we will have to wait until crowdfunding starts on December 5 to find out. How about Xiaomi smart lock? What else do we know now besides the appearance? What is there that should be said but is not? The author will give you a brief analysis below. Xiaomi Mijia smart door lock promotional poster shows the way of opening the door, which is naturally a very traditional way of pressing down the handle. On the one hand, Chinese people are more accepting of this way of opening the door. In addition, it can also reduce the design and manufacturing costs, and the price will also lower. In addition to the "password/Bluetooth/NFC unlocking method" mentioned in the picture above, there should also be fingerprint, remote authorization password and mechanical key unlocking methods. The indoor anti-locking knob shows that this smart lock supports reversal, which means you don’t have to worry about the direction of opening the door when purchasing. Another advantage of the handle-type door opening method is that the lock body can support the sky and ground hooks. Although the author has repeatedly advocated that the installation of heaven and earth hooks is not recommended (click here for details), many people still have the idea of ????"I can use it without it, but you can't live without it", so the feature of "heaven and earth hook" is highly likely to be supported. It can be seen from the published concept map that the Mijia smart lock places the fingerprint on the handle. When the smart lock was reviewed in early September (click here to view), the location of this fingerprint recognition was noticed by people around it. However, from the picture, it seems that this recognition module is a relatively rare oval shape. The author guesses that the manufacturer of the fingerprint recognition module may come from Goodix Technology, and the speed and recognition rate should be very good. In addition to the appearance diagram of the smart lock released by Mijia, this smart lock also supports NFC card swiping to open the door, which is safer than common IC cards. Even if the card is lost, it can be deleted in time, and it is more difficult to copy (depending on the card type) ). It is a good way to open the door for families with elderly people who cannot use fingerprints to open the door. As can be seen from the lock body and lock tongue, this smart lock supports the national standard 6068 lock body, which is also a relatively common feature in the design of domestic smart locks. Under the uppermost self-elastic deadbolt, there is a small deadbolt. This deadbolt is used to detect whether the door is closed, which means it has an "alarm for locked and unclosed state" function. At the same time, the "lift up and lock" method should also be used for locking and arming. Mijia smart door lock function Since this lock is produced by Xiaomi, it can be operated normally when connected to Mijia. It also states that the gateway is not included in the package. Judging from the hardware configuration of several Mijia smart locks that the author has learned about before, this smart lock will use the ZigBee wireless communication protocol with the gateway, which not only provides better confidentiality, but also saves more power.