At present, there are two kinds of fingerprint identification technologies for smart locks on the market: semiconductor identification and optical identification. What is the difference between semiconductor identification and optical identification? Is the semiconductor smart lock good? The following small series will briefly analyze these problems for everyone:
First, in the anti-counterfeiting identification, semiconductors make use of the conductivity of fingers, and are inherently capable of preventing false fingerprints, preventing the occurrence of fingerprinting and copying fingerprints, and making the broken fingers unable to open the door lock through the collection method of electromagnetic waves emitted to the skin of fingers; Effectively improve the security of fingerprint lock. However, ordinary optics simply uses the difference of plane images, and it does not have anti-counterfeiting ability itself.
Second, in the fingerprint lock recognition rate, semiconductor is superior to optics, and fingerprint recognition is not affected by the environment. Dry fingers in winter, sweaty fingers in summer, peeling fingers, dirty fingers, etc. can be quickly recognized, especially for children, the elderly, users with shallow fingerprint lines, dry fingers, etc. The recognition rate will be improved a little, which is the advantage of smart lock semiconductor living recognition. Compared with optical recognition, dry fingers need to be artificially moistened in winter, and sweaty fingers need to be wiped dry in summer, which is very inconvenient. Peeling fingers and dirty fingers cause wrong recognition and the opening speed is obviously slowed down. This is the essential difference between semiconductor identification technology and optical identification technology of smart lock.
Third, according to the technical differences adopted, semiconductors are more advanced, and they have more advantages than optical ones in fingerprint identification, false rejection and resolution.
Fourth, in terms of recognition accuracy and sensitivity, semiconductor fingerprint recognition is a capacitive array composed of tens of thousands of capacitors, and the distance from fingerprint ridges and valleys to the touch plate is collected to form fingerprint data, which is more accurate than optical scanning, and can collect finer fingerprint details and faster.
The above is a brief introduction about the semiconductor smart lock. If you want to know more about smart locks, please pay attention to China Smart Lock Network.