Note on the fingerprint lock
Fingerprint is the use of this principle, the electronic components and precision mechanical components to produce the combination of security products. Nothing but the most essential Fingerprint safe, convenient, stylish three aspects:
I. False Accept Rate and False Reject Rate
False acceptance rate False rejection rate, and is undoubtedly one of the most important indicators, but also can be called rejection rate and error rate, there are several ways of expression:
(1) of the head with a resolution of the fingerprint, such as 500 DPI .
Existing optical fingerprint sensor accuracy is generally 30 million pixels , there are individual enterprises with 10 million pixels.
(2) percentage of the way: for example, written on some parameters and so on.
Of course, these are the parameters of various business information, whether it is 500 DPI or FRR <0.1% for the average user is just a concept, there is no way to test. At present, institutions in this regard is the detection of Ministry of Public Security in Shanghai ‘s security products testing center, testing standards are “FRR should be ≤ 3% False Accept Rate ≤ 0.001%”.
(3) “False rejection rate, false recognition rate” between the shift in the argument, to a certain extent, is correct, this seems in mathematics is “hypothesis testing” concept: at the same level, refusal true rate, false recognition rate is low, and vice versa. This is the inverse relationship. But why say that to a certain extent it is correct, because if the process and technology to improve it, these two indicators can be down, so in essence is to improve the technical level. Some manufacturers in order to speed up the certification, by reducing the level of security practices at the expense of the expense of safety, to create fast, strong ability to identify false impression. This kind of lock or demo locks more appear.
According to relevant standards, the family into the door lock with fingerprint security level should be 3, that is, FRR ≤ 0.1%, False acceptance rate ≤ 0.001%.
Second, functions and product durability
In theory, the more and more a function of a program, then the greater the possibility of damage to the product a bit. But this is the same technology in the comparison between the strength of the manufacturers, if the technical strength of the high, then the completion of their products can do worse than those of technical strength and product features, good quality.
A more crucial point: the benefits of multi-functional and functional comparison of the risks. If the functional benefits of a large, it can be said that this increase is worth it, as you drive the speed limit 100 yards, you do not need to pay throttle violation or accident needs consideration is the same reason. If this function can not give you any good, then this function becomes redundant. So the key is not to consider what “one more feature for more than a risk,” but worth the risk to bear.
As networking, on the one hand the fingerprint in the network transmission process of the stability of the industry can not be sure, on the other hand, to destroy the existing decoration, more importantly, once the virus invasion , will be no “medicine” to cure. Once the access network, the possibility of attack will be greatly increased. The superposition of a class of phone alarm security technology related equipment shall be set separately, and there are indoor radiation and false alarm problems. Especially the latter, because in addition Fingerprint technology and the environment other than their own and other external factors, in the event of a second false alarm, the user will select the split lock.
Third, on the LCD screen
At present, the product manufacturers can provide much of this configuration, most just Villa Fingerprint
Lighting and sound by suggesting that these fingerprint module built-in functions to achieve. After setting the LCD display, allowing users to operate more convenient and simple. Power consumption is slightly higher than the point with light and sound. Need not, depends on consumption of their own needs. However, the LCD certainly can make more intelligent fingerprint lock, the user operation is more simple, it was obvious. Like mobile phones, display dark, or can call, just inconvenient to some Bale. Professional manufacturer of LCD configuration with gold means the code, Santa grid fingerprint door lock , Venda pass, Shimao Shi Ken Locke , Babai intelligent lock so a handful, that several implementation techniques are also different, with high levels of are low. Configuring the LCD is not a simple accumulation of material, but also related to the software and the rational design of electrical systems. Generally, use the technology as alternative to mechanical lock fingerprint lock itself, is the inevitable development of technology and market!
Fourth, on-chip
Chip technology is common to all of our IT industry, the barriers, the technology has been for foreign control and monopoly. From this we can see the PC market. Fingerprint chip all domestic manufacturers are imported. No country which has a production capacity of enterprises. The chip is actually a U disk, there is no one that the core technology, is a common memory and a small amount of data processors. Memory sizes only. Different decisions each chip memory expansion and function of fingerprint fingerprint module can be placed on quantity, but the same general function, that is, store data, process the data. In the fingerprint lock in this limited data, the speed is almost comparable. Defective chip from a different matter of course. Safety and convenience are compatible from the point of view, a fingerprint lock for storage of 10 fingerprints were sufficient, not better. Because a fingerprint is a key! However, for multi-family of choice or more recommended for use more than 50 storage lock, so that everyone can do more than register several “difficult identification” is not available.
Fifth, fingerprint module
As the front of the industrial chain, a professional software development companies and enterprises to provide fingerprint module fingerprint lock group. Most of these modules are spreading into China and provide further improvement of the secondary development of space. Only the secondary development of the fingerprint module can really play its role. Domestic manufacturers of technology reflected in here. Like a computer, Windows XP gave you installed, but you practical, you have to install some special software, such as OFFICE office systems, Winrar extract tools. With technology manufacturers, will be a second deep development, product design features to achieve the required modules. No technical power, and used to use it, these products come out to look different from other similar, were not significant, technology upgrades and aftermarket products is out of the question.
Sixth, the industry website
Fingerprint home, fingerprints and fingerprint lock industry of China integrated network platform, the site of “Meeting the world famous, and promote trade and prosperity” as the goal open, fair, objective and professional as fingerprint identification industry related enterprises and individuals, the timely provision of all Class of industry information, product supply and demand, agent investment, technology trade, research, talent marketing, advertising services, block board service. Web site brings together the industry from design, tooling, processing to production and marketing of the whole industry chain enterprises and related product information.
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