Smart door lock blockchain chip

1. blockchain intelligent door lock system can not be tampered with, difficult to decipher, data can be recovered, and privacy can be protected. At present, blockchain intelligent door lock system has been developed on smart key technology in China.

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3. Smart door lock has fingerprint, password, card and key. All of these functions are available

4. Full end engineers are IT engineers who can do everything. You can understand that

for example, IOS,,, Apple iPad, Android, PC, server, TV,

and so on. In fact, there are few engineers who can really do the whole end

the price is also very expensive. You can go to China to inquire about the quotation of all end engineers, which will definitely make you jumpy

generally, we need engineers with single skill, high cost performance, and more professional things to do

of course, if it's some big guidance, some apps or applications that emphasize the integration of the whole system,

then all end engineers are also worth using,

other small companies can do the front end, Android end and IOS end, which is also a cost saving method

however, it's not very cost-effective. If you send an order to Bangbang, you will be able to handle the work. Who needs to find a full-service Engineer

there will be little demand for this kind of procts in the future
many software are divided into server and client, and then add a database. Using database needs to understand SQL, and the server and client are likely to be developed in different computer languages, and this phenomenon is very common. Therefore, the software development engineer, that is, the programmer, has the front-end (specialized in developing the client) and the back-end (specialized in developing the server). In some companies, a programmer does not only the front end but also the back end, and sometimes the design and maintenance of the database. In China, such a programmer is called "full stack".

5.

Safety is usually relative. Theoretically speaking, intelligent locks with high-tech elements and concepts are safer than conventional mechanical locks. After all, today's mechanical locks are no longer difficult for theft crimes. However, it is still difficult for intelligent locks to be easily broken. In addition, there are many ways to unlock them, The safety factor has been improved invisibly, so it is reasonable that it can be widely recognized

generally speaking, the high-tech advantage of smart lock has been revealed. As for the fact that it will still be suspected as a fraud, there is a certain connection with exaggerated publicity. However, if the security risks caused by remote intrusion can not be effectively solved, it can not be affirmed by consumers, I believe that it is also necessary for relevant enterprises to attach great importance to it, so whether the smart door lock is safe or not is also a matter of opinion< br />

6. Hello, smart door lock generally uses fingerprint unlocking, and fingerprint acquisition head is divided into optical fingerprint head and semiconctor fingerprint head
the optical fingerprint identification mole has strong environmental adaptability, stability and low cost. But the anti-counterfeiting performance is weak, the security is low, there are inherent defects in the recognition accuracy, and the power consumption is relatively large
the semiconctor fingerprint mole has the advantages of high security, high sensitivity, low power consumption and small volume. However, the semiconctor fingerprint head has high requirements for the use environment and is easy to be affected by static electricity, so it should be maintained.

7. In fact, the intelligent door lock is not so black technology as imagined. The main part is the electronic part and the mechanical part of the lock body. The electronic part covers a fingerprint identifier, a small screen, and the control main body is generally a 51 single chip microcomputer. The manufacturers with larger lock body parts design and manufacture their own procts, and the OEM procts are generally purchased in large quantities. The so-called black technology is a variety of seemingly cool unlocking methods.

8. Ordinary cross key and flat key are class a locks, which can be opened in less than 1 minute by professional unlocking. Flat type, B-level lock with double row of billiard slots takes more than 5 minutes to open. The C-level lock with the highest security adopts double row, computer and compound curve slot patent keys. It takes at least 270 minutes to open. For example, SKN's smart door lock uses this kind of C-level lock. At the same time, SKN also has fingerprint, password (supporting virtual password), IC card, NFC and other unlocking methods. It can even use the al insurance of "fingerprint + password" joint unlocking mode.

9. Want to know what brand of smart lock, then you have to search on the Internet to see the model of this brand