When the smart home ecology first appeared, manufacturers from 2015 to 2016 once believed that smart door locks were “smart entrances”. Whether people go home or leave, they must pass through this lock to interact with smarts. Times have changed, and I didn't expect that the "entrance" was played with not the door lock, but the smart speakers represented by Xiao Ai and Tmall Elf. Because of its voice interaction and home linkage experience, it allows users to accept the smart concept that can be controlled without hands.
The door lock that had been high hopes could not hide from the tediousness of unlocking by hand. In many families, the fingerprints of the elderly are worn out, and the fingerprints of the children are not formed. As a result, the accuracy of fingerprint recognition is not high, giving them the impression of intellectual disability.
However, this situation is changing. The face recognition door locks launched by TCL in the past two years have achieved an intelligent experience of unlocking the door without hands and identifying unlimited people.
No feeling is smooth, the unlocking method of smart home has changed
Face unlocking is not new, but the 3D structured light solution used in smart door locks is new. The iPhone X, released as early as September 2017, was the first product that applied mature 3D face brushing to a senseless application.
Then domestic manufacturer OPPO also used this unlocking method on its flagship Find X. The technology introduced by OPPO comes from Obi Zhongguang. The interactive experience with zero operation and smooth recognition has allowed Find X to retain the praise of "the first 3D structured light technology in the Android camp is close to the iPhone XS terminal".
In recent years, structured light has gradually matured, and TCL has given Obi Zhongguang's smart home scene with this technology new imagination.
Unlocking with a human face brings the most intuitive experience to users is "freeing hands."
The previous step of pressing the fingerprint is omitted, and the user can automatically unlock the lock as long as the user walks to the door, and the identification process takes less than 1.2 seconds. After the door is locked, there is no need to reverse the lock manually, and the door will be automatically locked after 10 seconds of closing the door. Especially in the scene where you can't move your hands to open the door, this "liberation" is even more necessary. This kind of senseless experience from entering the door to locking the door is more in line with users' expectations of intelligence.
As the entrance of the family, the door lock also needs to have a strong security function, which is why TCL chose to cooperate with Obi Zhongguang. Unlike some door locks that publicize face recognition actually used to take photos for verification, 3D structured light recognition obtains three-dimensional point information, which is more detailed for human biological characteristics.
The image recognition hardware only needs to capture the photo with the infrared camera, and then use the algorithm to recognize the image to determine the unlock. In contrast, 3D structured light recognition modules and algorithms are more complicated. In the front panel of the TCL X7S, we see three portrait capture modules: laser speckle projector, infrared fill light, and infrared camera.
When the user unlocks, the infrared fill light illuminates the face to take a photo, and the speckle projector emits about 30,000 infrared points to the face to form a face model. Then through the recognition algorithm pre-cured in the chip, the 2D photo is compared with the 3D face model, thereby avoiding the risk of counterfeiting inanimate objects such as rubber masks.
The security level is the same as the facial recognition of mobile phones, and TCL X7S reaches the level of financial payment. The safety of this verification algorithm has passed BCTC's double certification of living body and comparison algorithm.
▲ The principle of 3D structured light recognition of human facesThe picture comes from the Internet
Based on the above, let’s look at the smart door lock with structured light technology. From the operational level, users can hardly use their hands when entering the door smoothly and without feeling; from the technical level, it solves the strong security effect that the door lock must occupy the physical entrance position. . The last layer is not to pick the universality of users.
Door locks are public goods in the use environment of the family, and the unlocking environment they face is not exclusive to one person. It is necessary to take care of both young and old in the scope of identification.
Among human biological characteristics, face attributes have stronger stability and individual differences. The contours of the facial features of the elderly and children will not change easily over a period of several years. Corresponding to unlocking, structured light recognition does not pick users, regardless of age, can unlock, and one facial information entry can be used for many years.
However, this proof of the advantages of structured light technology does not completely deny fingerprint unlocking. Fingerprint unlocking and NFC card, as the most popular way of unlocking door locks, have become accustomed to most users. Among them, there are also the elderly and children that we repeatedly give examples. After all, they are the people who need to learn more in the stage of new technology iteration. Temporary habits are hard to change, and other solutions are needed to remedy it.
Therefore, the X7S smart door lock still retains 6 unlocking methods including fingerprint recognition, password input, and NFC unlocking.
At the same time, it takes care of the different heights of family members, and the height of face recognition can be from 1.35 meters to 2 meters. It is this simple operation that does not pick users and saves time, which makes it easier to impress consumers and pave the way for this product to lower the user acceptance threshold.
Door lock security, users need undifferentiated visualization
In addition to the security of the door lock itself, smart door locks also need to take care of potential safety hazards at the operational level. Here, TCL chooses to implement visible security to the end. In addition to the 3D structured light mentioned above, there are also door locks pre-installed with electronic peephole remote monitoring, and the inner screen visually displays the dynamics of the door.
Smart door locks with electronic peepholes have also become an indispensable feature of thousands of yuan smart door locks on the market. It has to be said that electronic peepholes do increase security protection in the matter of "opening doors to visitors".
When someone visits at home, there are only two situations: someone or no one is at home.
Recalling the first situation we encountered, the chance of someone visiting you standing at the door is almost zero, so we have the habit of taking a look at the cat's eye first and seeing the visitor before opening the door. The door lock with electronic peephole can simplify this process. When we are busy, we can see who the visitor is from the mobile APP push. If you are too lazy to walk to the door, you can open the lock directly with your mobile phone.
For the elderly and children who are inconvenient to use mobile phones at home, the TCL X7S smart door lock provides a new visualization solution: there is a wide-angle peephole outside the door to record the movement of visitors, and an IPS screen inside the door shows the real-time dynamics of the door at a glance.
Children are visiting alone at home, and they can know who is coming on this screen before opening the door. At the same time, the door lock will synchronize the image and video recording of people staying at the door to the cloud. After receiving the notification from the mobile phone, the adult can know the situation in front of the door, which is equivalent to double insurance.
The image of the IPS screen is clear enough for security requirements. The size of the screen is about one-half the size of the mobile phone screen, and the elderly with poor eyesight can also see clearly.
In the second situation where the same person is not at home, the user can not only receive the reminder message pushed by the mobile app like the above scenario, but also remotely open the door to deal with some temporary situations. For example, letting neighbors come in to help feed the cats, housekeeping aunts come in to clean, and friends come in to help with things, etc., can solve life troubles on the basis of confirming safety.
Solve the technology, but also to improve the last step of the service
3D structured light door locks on the market are mainly "automatic locks". The structure of the lock body is relatively complicated, and the requirements for the keyhole and door seam are relatively high. Therefore, it is necessary to buy a lock and have a complete follow-up installation and commissioning service. After all, when you come into contact with a new technology product, whether the preparation process is troublesome or not will greatly affect the goodwill of users.
At present, we have experienced the after-sales service of smart home. In addition to the service system of Mi Home, the service system is relatively complete, but also the more experienced domestic technology brands. TCL's after-sales service network is self-built, and it is also the only brand with its own service in the smart lock industry. In terms of data, there are 2 call centers, 26 service offices, 20,000+ service outlets, and 60,000+ professional after-sales engineer teams across the country, with a domestic coverage rate of more than 90%.
In other words, even users living in rural areas can experience installation services without hindrance.
Going beyond the city and youth circles, and treating the service equally, can you win a good reputation for caring enough for users. This is also the reason why the service channels such as Xiaomi Home and Suning.com, which have focused on first- and second-tier cities and young people, have gradually laid out the sinking market Where.
Compared with after-sales outsourcing, the quality and efficiency of self-sustained services are unattainable. Therefore, after the first service upgrade of TCL in May 2020, orders are free of measurement, and 7 steps are changed to 0 steps. After the second upgrade in June this year, service points across the country also waived the cost of "reaming" that might be incurred during the installation process, and at the same time made remote door-to-door access free of charge.
Perhaps from the user's perception, traditional technology brands such as TCL are not so fast in the pace of "intelligence", but even if they start late, they will not affect the speed of product intelligence transformation. As a 40-year-old technology brand, TCL's upstream product supply chain maturity and downstream channels have a solid layout, making the service transformation of smart door locks more proactive in the market. A one-to-one service system can also broaden users' tolerance for accepting new products.
The track is new, smart door locks re-enter the layout
The use of 3D structured light door locks not only innovate the way of unlocking, it satisfies our requirements for door lock safety, and optimizes a more comfortable and convenient unlocking experience. There are also camera hardware advancements, AI algorithm breakthroughs, and the gradual popularity of 5G networks are also paving the way for the universality and cost reduction of structured light door locks.
On this basis, matching the back-end services, in an environment where users can taste the sweetness and willingness to accept, other door lock manufacturers see the potential of 3D face recognition, and are more willing to participate in this new track. Continue to optimize products at the technical and hardware levels, and produce results that are more acceptable to consumers at the price level.
And look at smart door locks from the high point of the “entry” of smart homes. They are also home hardware. The difference between smart door locks and other “entries” with screens is that home locks are just needed, but screened devices may not be necessary.
TCL is also aiming at the opportunity of "entry just need" in this smart ecology. Since it began to deploy smart homes in May 2016, TCL has launched Wi-Fi networked smart locks in 2017, and will be forward-looking in 2020. Face recognition technology was applied, and K6X smart door lock was launched. This year's X7S smart door lock has revolutionized the face recognition technology and added 3D structured light with higher security level and recognition accuracy to the door lock.
The strength in the field of technology for 40 years has also helped TCL continue to break through in the smart door lock industry. In the opening ceremony of JD Double 11 that just started not long ago, TCL smart door locks won the top three in the smart lock brand list one hour after it went on sale, and sales increased by 137.9% year-on-year.
Looking back at the beginning of the last "entry" smart speaker, it is nothing more than the right time and place to occupy the development of voice interaction technology, the emergence of the intelligent ecological market, and manufacturers to reduce costs and upgrade products.
Now it is also landing on the changing smart door locks. The technological update of 3D structured light has opened a new stage. Cross-border giants and Internet + technology brands are also investing in innovations in this product. Next, we will only wait for users to accept and the market will bloom. One step verification.
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