Basic characteristics of fingerprint smart lock
Safety
The fingerprint lock is a security product produced through the precise combination of electronic components and mechanical components. The essence of fingerprint locks is nothing more than safety, convenience, and fashion. Rejection rate and false recognition rate are undoubtedly one of the most important indicators. They can also be called rejection rate and false recognition rate. There are several ways of expression:
(1) The resolution of the fingerprint head used, such as 500DPI.
The accuracy of existing optical fingerprint sensors is generally 300,000 pixels, and some companies use 100,000 pixels.
(2) Use the percentage method: for example, some parameters are written, etc.
Of course, this is a parameter propagated by various companies. Whether it is 500 DPI or a rejection rate of <0.1%, it is just a concept for ordinary users, and there is no way to detect it.
(3) It is correct to a certain extent that the "rejection rate and the false recognition rate" are changing each other. This seems to be a concept of "hypothesis testing" in mathematics: at the same level, rejection rate If the truth rate is high, the false recognition rate will be low, and vice versa. This is an inverse relationship. But why is it correct to a certain extent, because if the process and technical level improve, these two indicators can be lowered, so in essence, the technical level must be improved. In order to speed up the certification, some manufacturers use the method of lowering the security level, at the expense of security, to create false images with fast speed and strong recognition ability. This is more common in sample locks or demo locks.
(4) According to relevant standards, the security level of fingerprint anti-theft locks for household entrance doors should be level 3, that is, the rejection rate is less than or equal to 0.1%, and the false recognition rate is less than or equal to 0.001%.
durable
1. Theoretically speaking, one more function means one more program, and the product is more likely to be damaged. But this is a comparison between manufacturers with the same technical strength. If the technical strength is high, then their products can be completed with more functions and better quality than those with poor technical strength.
2. The more critical point is: the comparison of the benefits of multiple functions and the risks brought by the functions. If the benefits of the function are great, then it can be said that the increase is worthwhile, just as if you drive a speed limit of 100 yards, you need to pay the price of violation or accident if you step on the accelerator. If this feature does not bring you any benefits, then this feature is redundant. So the key is not to consider "one more function, one more risk" but the value of this risk is not worth bearing.
3. Just like the networking function, on the one hand, the stability of fingerprints in the network transmission process is still uncertain in the industry. On the other hand, it must destroy the existing decoration. More importantly, once it is invaded by a virus, there will be no "medicine" to cure. . Once connected to the network, the possibility of being attacked will greatly increase. For security technologies such as telephone alarms, relevant equipment must be installed separately, and there are problems with indoor radiation and false alarms. Especially the latter, due to the influence of external factors such as technology and environment other than the fingerprint lock itself
Anti-theft
1. According to the anti-theft performance, popular fingerprint locks are divided into two types: ordinary fingerprint locks and anti-theft fingerprint locks. Ordinary fingerprint locks are not much different from the original electronic locks. They are mainly used for fingerprint authentication, but they are not universally used for existing domestic security doors. This type of fingerprint lock does not have the hooks of the sky and earth rods, and cannot use the security system for security doors (on the market). Some imported fingerprint locks do not meet national industry standards and can only be used for wooden doors).
2. The fingerprint anti-theft lock has better security and can be applied to standard anti-theft doors and wooden doors. This type of lock can automatically or semi-automatically connect the heaven and earth lock system of the anti-theft door without affecting the performance of the original anti-theft door.
3. The anti-theft performance is different, the market price is also very different. The price of fingerprint locks with mechanical anti-theft function is obviously higher than that of ordinary fingerprint locks without the anti-theft function. Therefore, when consumers buy fingerprint locks, they must first choose the corresponding lock according to your door. Generally choose fingerprint lock according to the requirements of use
4. Different fingerprint locks should be used for different purposes. Anti-theft fingerprint locks should be used for home use, so that the door requirements are lower, no modification is required, and after-sales maintenance is convenient. Engineering fingerprint locks are generally purchased in batches, and door manufacturers can be required to provide matching doors that meet the product installation direction. Therefore, there is no problem of modification. It is just that there will be some trouble in the follow-up maintenance or replacement of ordinary anti-theft locks, and there may be problems that do not match the new locks. condition. Generally, the most direct way to distinguish whether a fingerprint lock is an engineering fingerprint lock or a household fingerprint lock is to see whether the length and width of the rectangular lock body (guide plate) under the door cabinet bolt is 24X240mm (the main specification), a few are 24X260mm, 24X280mm, 30X240mm, the distance from the center of the handle to the edge of the door is generally about 60mm. Simply put, it is universal to install general anti-theft doors directly without moving holes.
