With the rapid development of science and technology industry, various products with the title of "intelligence" have gradually become popular and have been accepted by the public in recent years. Intelligent products add many functions that are easy to operate and cooperate with multiple devices on the basis of the original traditional devices. This is the "Internet of Things" that is often mentioned in the industry. Driven by this huge network system, the advantages of smart home devices are self-evident.
Personally, I am also an avid technology enthusiast, always hoping to experience the cutting-edge electronic products and emerging technologies in the first time. Although I have improved my home in the direction of my dream smart home as much as possible in recent years, a problem that has been bothering me has never been solved, that is, the lack of a product that can start smart home devices with one touch. Recently, I was lucky enough to receive an intelligent push-pull door lock from Mijia, which supports the linkage with Mijia’s smart home equipment. It happens that most of the products used in my home are Mijia’s products, which is a unique choice for my room renovation.
Packing and unpacking
Mijia chose SF Express to carry the products, and there was no need to worry about the transportation speed of SF Express. Being in a second-tier city, Mijia received the products the next day after arranging the delivery. The packaging of Mijia push-pull smart lock is different from the two smart locks I installed for my parents’ home before. The vertical packaging has been changed to horizontal packaging, and the top is designed with a handle, but the weight of the packaging is heavier than the previous two.
The front and back sides of the kraft paper packaging box are symmetrically printed, the line outline of Mijia push-pull smart door lock is printed on the left side, and the full name of the product, four functional features and special instructions for integrated living fingerprint identification are printed on the right side.
The functional characteristics of this push-pull smart lock are described in detail on the left and right sides of the box in the form of pictures and texts. A famous brand is printed on the lower right side, which records the technical parameters, packaging contents, manufacturer information and related bar codes of Mijia push-pull smart door lock.
The display inside the package is very regular, and the product guide and the cards needed for installation and positioning are placed at the top; The inner and outer door lock panels are wrapped in white translucent plastic bags and placed in the packaging mold in the middle part; The rest of the lock body and accessories are placed in the independent packaging box below.
The above is an attached family photo, including the door buckle, lock body, screws, lock core set and battery number five.
product design
There are currently three styles of Mijia smart door locks on sale, namely, push-pull smart door locks, press-on smart door locks and youth smart door locks, which can be simply divided into push-pull and press-on smart door locks in terms of unlocking methods. Which of these two unlocking methods is better will be discussed in detail in the later experience. Here, let’s have a brief understanding of the appearance.
Mijia push-pull smart door lock is made of zinc alloy and ABS splicing materials. The low-key and calm black color is selected for color matching, supplemented by the texture of matte matte surface, which will be more business-like visually and can also be perfectly integrated with most styles of doors.
The overall shape of the panel is still square, and it is slightly longer than the panels of the two door locks used before. The four corners are excessively rounded, which also weakens a sense of firmness.
Viewed from the side, the top and bottom of the door lock panel are kept on a horizontal line, and the position with a push-pull wrench in the middle is designed with a lower limit. Personally, I think that on the one hand, it takes care of visual harmony, on the other hand, it leaves enough space for the activities of the push-pull wrench to avoid the occurrence of hand clamping.
Above the outer door lock panel is a whole touch interaction and display area, and at the top is a status indicator light; There is a large touch area in the middle, with digital keys and delete/confirm keys distributed; There are three status indicators in the lower position, and the area left blank below is the NFC sensor module.
A concave fingerprint recognition area is designed at the top of the push-pull wrench. The size of the fingerprint module is one circle larger than that of the iPhone in the past, and the texture of the fog surface is different from that of the whole door lock. The craft texture of high-gloss surface is selected, which is also easier to identify.
The lower position on the inner side of the push-pull wrench is a knob, whose function is to remove the protective cover on the outer side of the push-pull wrench after rotating to the horizontal direction, and then remove the protective cover under the panel with a clamp needle, and then open the door lock through the entity, which in a sense can also be regarded as improving the concealment of the entity keyhole.
At the bottom is the classic Mijia shield, which I believe is familiar to everyone. Micro USB emergency power supply interface and speaker openings on the left and right sides are also reserved at the bottom of the outer panel.
The back of the panel is supported and wrapped by a very thick metal plate, which is fixed by dense screws. A braided wire extends from the door lock main board at the upper opening to connect with the inner door lock panel, and a seat next to it is used to connect with the wire of the lock body.
It is worth mentioning that an anti-prying switch is designed at the upper right of the back of the panel (it is at the upper left after it is actually installed). After the door lock is installed, the button is automatically pressed down, and if the switch is detected to bounce in the power-on state, it will automatically send an alarm message to the owner’s mobile phone.
The design of the inner panel is basically the same as that of the outer panel, and the TV compartment is at the top, and the outer cover can be opened through the fixed buckle at the top, and the TV compartment can accommodate 8 batteries. There are setting keys and reset soft keys under the battery compartment, which is convenient for the owner to set and reset the door lock indoors.
There is a push-pull wrench on the inner panel with a button that can be pushed up and down. The function of this button is to prevent thieves from unlocking through the cat’s eye, and the push-pull wrench on the indoor side can’t open the door normally.
At the bottom of the inner panel is an anti-lock knob, which supports push-type operation and can prevent children from locking themselves indoors by mistake. The damping of the anti-lock knob is still relatively large, and it needs a little effort when pressed. After rotating in place, there will be obvious frustration feedback, but there will be no big "abnormal sound".
There are thick cushion rubber pads behind the front and rear door lock panels, which can avoid the problems of loose joint between the panels and the door and scratching the door during actual installation. There are also two seats on the back of the inner panel, one is connected with the wire of the front panel, and the other is connected with the wire of the lock body.
Mijia push-pull smart door lock is equipped with a standard lock body, but it is slightly different from the lock bodies of the previous two smart door locks. The lock body itself can be driven by the motherboard, and a braided wire is externally connected from the lock body. The lock body itself is also made of solid stainless steel, and the process details of the square tongue and oblique tongue on the side are also very detailed.
From the perspective view of the internal structure given by Mijia officials, it can be seen that the lock body itself has a built-in clutch, and the lock is opened after the placement panel is violently disassembled. In addition, the square steel can idle 360 degrees, which is also resistant to violent disassembly. The lock can still be used normally when the bolt part bears the maximum static pressure of 6000N N.
Installation service
For products such as smart door locks, installation services are naturally an important part of the buying experience. The original communication was to call 400 customer service hotline to make an appointment for installation service after receiving the product, but due to the busy work some time ago, I always forgot to make an appointment after receiving the door lock. Later, the Luke installation service in my city called me and made an appointment for the installation time and place.
The master confirmed with me whether I was at home and the specific time before the door-to-door installation, and then arrived on time as agreed. As the north has entered winter and the weather is cold, the master is excusable for not wearing overalls. The whole installation process was relatively smooth, and the professionalism and attitude of the installation master finally made me decide to give him five points of praise.
Before the installation, the master asked me to sign the "Risk Notice of Mijia Intelligent Door Lock Installation Service" according to the rules, and told me that during the installation process, it might be necessary to open the hole again because the opening on the original door was not suitable.
After removing the lock on my original door, the master tested the hole position of the door lock panel, then further enlarged the original hole position, ground it down a little with professional tools, and repaired the edges without burr.
Because the panel of Mijia’s dragging smart door lock is relatively long, the master also opened a new round hole above the original hole position, with a diameter of about one centimeter, and the edge treatment is also very detailed. After installing and fixing the lock body, carefully install the two side panels on the door. When combing the wires inside, you can see that the master’s strength is very appropriate. After installation, the panel was measured for deviation, and some adjustments were made appropriately.
The smart lock used before has no problem with the hole position of the square tongue, so it directly keeps the door gusset of the original door. This time, during the test, the master found that it could not match the original door gusset, so he helped me to replace it with the door gusset that comes with this set of door locks. The materials and workmanship are much better than the original. After the replacement, the master was able to switch on and off normally and whether it was loose after closing the door. It can be seen that it is still very detailed.
The effect after installing the door is not much different from that expected, and it is still very satisfactory on the whole. The simple and tough appearance of black is very compatible with my folding door with reddish-brown wood grain. Black is a versatile color, and the matte texture is also compared with the bright texture of the door itself. In a sense, it also emphasizes the existence of this smart door lock and labels my whole house with a scientific and technological attribute.
Configure door lock
After installing the Mijia push-pull smart door lock for the first time, it is necessary to configure the door lock through Mijia application. The configuration process is the same as that of most smart devices of Xiaomi and Mijia brands. Select to add devices in Mijia application, and the mobile phone will automatically search and identify smart devices that are connected to Mijia application nearby while keeping Bluetooth turned on. Click the corresponding device to add. Here, one by one, it is necessary to press and hold the set button under the battery compartment of the inner panel for 3 seconds to trigger the pairing operation. During the pairing process, it is also required to input the pairing verification code displayed on the mobile phone in the outer panel.
After successful device pairing, a tab of Mijia push-pull smart door lock will appear in Mijia application. After entering, you will be prompted that the user has not been added, and you need to set the administrator and user for the door lock according to the wizard. For the first time, it is required to enter the password and fingerprint to unlock the door, and it is required to open and close the door indoors and outdoors to verify whether the unlocking method and various functions can be used normally.
It is worth mentioning that Mijia’s push-pull smart door lock adopts a mechanical self-elastic lock body. When the door is closed, the oblique locking tongue above is triggered to automatically drop the lock, and the locking tongue will pop up without deliberate operation.
Unlocking experience
Mijia push-pull smart door lock is mainly based on fingerprint unlocking, and also supports password unlocking, temporary password unlocking, Bluetooth unlocking, key unlocking and NFC unlocking, which can meet the unlocking habits and needs of different user groups in daily use. Next, I will experience these unlocking methods one by one:
◆ Fingerprint unlocking
Use the finger that has entered the fingerprint to put it on the push-pull wrench. After successfully matching the fingerprint information, the bar indicator light at the top of the screen will show white light and be supplemented by sound prompts. At the same time, pull the push-pull wrench outward to open the door, and the whole operation process will be completed in one go. In this era when fingerprint identification is used to unlocking mobile phones, I believe that most people can quickly get used to this unlocking method without too much learning cost. After a period of experience, it is found that the fingerprint recognition rate of Mijia push-pull smart door lock is still relatively high, and the response speed of the system is also very fast, and there are few cases where it is impossible to identify and match.
◆ Password unlocking
Password unlocking is a relatively intuitive way to unlock, and it is also very suitable for users whose fingerprints are not obvious or who are elderly. Touch the password sensing area panel with your finger and it will light up automatically. Enter the password you have set and press the Enter key to confirm. After the bar indicator light above lights up and hears the prompt sound, pull the push-pull wrench outward to open the door. In order to ensure the correct password input, the number keys will be accompanied by a prompt tone when pressed, so as to avoid the phenomenon of mistyping or missing characters.
◆ Temporary password unlocking
Temporary password also belongs to password unlocking, but it is different in functional design. Temporary password is more convenient to lend to friends or use in other scenarios. Temporary password can be set in Mijia application, which can be divided into one-time password and periodic password. The former will be invalid after being unlocked once, and the latter can set the service period, during which the door can be opened normally.
◆ Bluetooth unlocking of mobile phone
The door lock can also be opened directly through Mijia application. When the mobile phone is close to the door lock and Bluetooth is turned on, the door lock can be unlocked by long pressing the door lock status icon on the management interface of Mijia application. Compared with a previously experienced smart lock that supports remote unlocking, it will be safer to avoid the door being maliciously opened after the mobile phone is lost. If there is a need for the owner to open the door no longer, it can be solved by a temporary password.
◆NFC unlocking
At present, NFC unlocking of mobile phone is only applicable to Xiaomi mobile phone. The specific usage method is as follows: select the door card in Xiaomi wallet application, and then select Mijia smart door lock in adding smart door lock. The system will require real-name account authentication and password authentication. After passing the authentication, it will automatically enter the matching state, and the matching will be completed in about one minute. Name the NFC card according to the requirements of the wizard and select the personalized card to complete the matching. At this time, a message will be displayed on the NFC card, indicating that the virtual NFC card is not enabled normally. According to the requirements, add an NFC opening mode for a user in the setting of Mijia push-pull smart door lock applied by Mijia, and verify the NFC sensing area of the mobile phone close to the outer panel. After the verification is successful, the setting will be completed.
The experience of NFC unlocking is believed that many students have used it in both community access control and unit access control. Generally speaking, it is good to explain the lock experience, and it is also a logical design to apply it to their own doors. Just for security reasons, at present, only Xiaomi and Redmi series mobile phones are supported, which is not friendly to other brands of mobile phones.
◆ Key unlocking
The last one is the key unlocking method, which is also the last straw for the smart door lock after the equipment fails or there is no electricity. Because the key unlocking is a purely physical way to drive the lock cylinder to unlock, the category of "intelligence" can be completely abandoned. Therefore, even if you don’t need to take out the key often in daily life, it doesn’t mean that you don’t have to take the key.
Mijia application
Xiaomi and Mijia’s smart home products can be managed and dispatched in a unified way through Mijia application, which is one of the reasons why Mijia ecological chain is doing better in China. The Mijia application can not only unlock/lock this push-pull smart door lock, add management users, check the door lock dynamics, etc., but also achieve further functions such as temporary password setting, double verification, one-button protection and intelligent scene setting.
The door lock settings include the functions of prompting the volume of the door lock, voice setting, double verification, local setting, manual protection, and battery charge checking. Double authentication means that the fingerprint and password information of the same user need to be verified when unlocking, and the lock can only be unlocked after both information are verified at the same time, further enhancing security; After manual protection is turned on, you can click the check button on the outer panel to protect it after going out, or you can link other devices at home for safety protection.
Smart scene setting can realize the linkage of other Xiaomi or Mijia brand smart home devices at home, which is also the main reason why I choose Mijia brand smart door lock, so that it can really be the first step for me to start a smart life. The way of linkage configuration is also very simple. Click the plus sign in the upper right corner of the smart scene option to create a new smart scene, and the setting method also adopts a relatively simple logical command of "If ………".
For example, if we set the intelligent door lock to turn on the light of Aqara intelligent clothes dryer after it is opened, we need to select the push-pull type of Xiaomi Mijia intelligent door lock in the If option, and then select the door opening mode, which includes two options: any door opening and intelligent door opening, which can more accurately specify a user or a certain unlocking mode to trigger instructions; Select Aqara smart clothes dryer in the execute option, and then select the turn-on option. Through these simple operations, a smart home scene linkage setting is completed. What is more intimate is that Mijia also provides the effective time period selection of smart scenes. For example, after opening the door in the middle of the night, you can choose not to take effect, so as to avoid turning on the lights and affecting the rest of the family.
In fact, such intelligent linkage scenes are very rich. I just give a simple example to illustrate the problem. How to realize intelligent scenes suitable for your own use needs to be further designed in combination with your living habits and the equipment of smart home products. You are also welcome to share your interesting designs at the bottom of the article.
Experience summary
After using Mijia’s push-pull smart door lock for a period of time, I am delighted to find that it seems to have changed my life, changed the habit of taking out the key when I get home every day, and added a trace of technological attributes to my house through intelligent scene linkage. Perhaps this is the power of technology. As a door lock, safety is naturally its core element. Mijia push-pull smart door lock is equipped with a mechanical self-elastic lock body, and the lock body itself has a built-in clutch, which can effectively prevent the panel from being violently disassembled. In terms of unlocking methods, it also provides password, fingerprint, Bluetooth, NFC, spare key unlocking and other ways, and also supports the temporary password function, which greatly enriches the use scenarios of door locks.
It is not without shortcomings. Mijia’s push-pull smart door lock adopts the way of chip-driven lock body. When opening the door from the inside and outside, the handle of the push-pull door will always feel more laborious, and sometimes it will be pulled after unlocking, but it will not be opened, which requires a period of running-in adaptation. In addition, although this door lock adopts the standard lock body, it is different from the opening of most standard lock bodies. During the installation, I learned from the communication with the master that most users cannot directly install this door lock and need to process the original hole position.