Not long ago, when I introduced my smart lock to a friend, I was asked by a friend: "Can you open the door with voice control?" Only then realized that the smart lock products that are voice-activated on the market are really rare. Now that biometrics can be unlocked by "clicking" or "look", why not unlock it like "A shiba" like Alibaba?
As we all know, most of today's smart locks use biometric identification to verify, followed by traditional door opening methods such as passwords and mechanical keys. One of the benefits of biometrics is that biological information is carried around, such as fingerprints, palm prints, veins, retinas, etc., and these information can be “carried†without being damaged by external forces, and it is almost immutable for a lifetime.
The traditional way of identification usually requires special media to save and transfer information. For example, the key retains the correct arrangement of the marbles in the lock cylinder. However, this method of unlocking the medium needs to be slightly bloated compared with the biological information, and can only be "destroyed" as the way to open the emergency moment.
The story of "Alibaba and the Forty Thieves" must have been understood by many people, and "Open Sesame" has become the most famous opening password. Nowadays, the technology on the smart lock is very developed. The function of direct call voice assistant has already been supported on the mobile phone. But why isn't most of the smart locks on the market use voice recognition to open the door?
First of all, talk about security, smart lock is a device that needs security first, and the overall security depends entirely on the weakest link, so the security of each type of door opening must be taken into account. For people, the sound is not only easy to be imitated, it is easier to be recorded, some people have been awakened by other people's "Hey Siri", and there are related descriptions in the film and television works (the identity of the "XX") "X Shadows" series of movies). Therefore, voiceprint recognition is not unique, and the rate of false recognition is very high.
Followed by stability, the stability here refers to the stability of the sound of people. Everyone's voice will be different at different stages, even in the daytime, there will be great differences, such as before and after the party singing, before and after the cold. Moreover, the probability of these changes is still relatively high. If you have a headache and have a fever and a cold, you can't open the door by sound for a week or two. If you think about it, you will know how many chickens are.
Power consumption is also a problem that needs to be solved. The voiceprint unlocking needs to always turn on the microphone and always monitor the content of the radio so that it can be woken up at any time. Some people may ask: "Is it OK to wake up with a voice recognition?" It can be ok, but the time of waking up can already be unlocked by others, and then unlocking with voiceprint is not an extra move?
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