Fingerprint lock with HIEYIE algorithm can ensure impeccable security

Fingerprint lock is a kind of intelligent lock that uses human fingerprint as identification carrier and means. It is the perfect crystallization of computer information technology, electronic technology, mechanical technology and modern hardware technology. Compared with traditional access control locks, the application advantages of fingerprint lock series technology products are extremely obvious. Fingerprint locks are generally composed of two parts: electronic identification and control, and mechanical linkage system. In addition, the uniqueness of single fingerprints greatly improves the performance requirements of users in security, and the unique physiological attachment of fingerprints completely avoids the hidden dangers of loss, theft, and duplication. These huge advantages make fingerprint lock technology more and more accepted by people, and fingerprint locks have become the safest type of locks among all locks currently.

The domestic fingerprint lock industry is still in its infancy. Although many businesses are actively involved in this field, it is still in the early development stage in terms of the entire market development. In order to further understand the development of fingerprint lock products and the market, we specially contacted Zhejiang Dessmann Electromechanical Co., Ltd. (DESSMANN) to learn more.

When it comes to locks, what people want to know most is its security. Although fingerprint locks appear as a high-tech product, they still put safety first. DESSMANN's fingerprint lock products are mainly used in community security doors and fire doors. The products use advanced technology to make many improvements in achieving security:

First of all, the fingerprint algorithm of DESSMANN fingerprint lock adopts Germany's HIEYIE algorithm, which greatly reduces the misrecognition rate.

Secondly, stainless steel and other materials are used in the key parts of the lock body. In addition, the lock body is specially designed for China's anti-theft doors. The top and bottom hooks, main lock tongue, and side tongue can all be locked with a slight pull of the door. The top and bottom hooks or side tongues of other brands of locks need to be pulled up by the handle to pop out, which is easy to forget.

DESSMANN's emergency unlocking method - mechanical key opening method is also specially designed. The keyhole is at the bottom, with very little space. Secondly, the key adopts a design of 6 slots on four sides, which is a special key and cannot be configured on the market. With these guarantees, the safety performance is far higher than other locks on the market. DESSMANN has conducted special tests and found that the locks normally installed on the door are basically difficult to open using technical methods.

In addition, DESSMANN has specially configured fake locks and anti-pry alarm devices. In particular, DESSMANN's housekeeper lock is also equipped with a short message alarm function. If the door is not locked or someone comes to pry the lock, the system will automatically send a short message to the owner, property or other designated person's mobile phone to ensure safety.

Although fingerprint locks have integrated many advanced technologies, it is known that usually 1%-5% of people cannot use fingerprint locks, or need to be identified multiple times before they can pass. If fingerprint locks can be used by more than 98% of people, it will be a very good result. This is because there are two important indicators of fingerprint algorithms, namely, false recognition rate and rejection rate. The so-called false recognition rate is the probability of identifying one person's fingerprint as another person's fingerprint. The rejection rate is the probability of not being able to recognize when using a real finger to open the door. Under a certain algorithm, the two indicators of false recognition rate and rejection rate are in a relationship of increase and decrease. To increase the recognition rate of real fingers is often at the expense of safety. It's like there are 100 liters of water in a pool. If one person takes more, there will be less left for others. Many algorithms on the market have low recognition rates, and some high recognition rates are missing at the expense of safety. DESSMANN uses the fingerprint algorithm of HIEYIE in Germany. The principle of the algorithm is different from the current algorithm. First, the total amount of "water" is increased, not at the expense of safety to improve the recognition rate. This is very important because the lock needs safety first. Under the premise of ensuring safety, a fingerprint library of 1 million pieces was used to test the algorithm, and the result was that the recognition rate could reach more than 98%. In addition, DESSMANN also adopted the most extreme test method, selecting 20 infants aged between 1.5 and 2 years old for the door opening test, and the results showed that all of them passed the test in one go.

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The fingerprint lock is an integrated product of optics, mechanics and electricity. The quality of the core and the scientificity and rationality of the circuit design will affect the stability of the fingerprint lock, which is also the most concerned issue for users of fingerprint locks.

The products developed by DESSMANN are strictly controlled in the three aspects of optics, mechanics and electricity to ensure that there will be no flaws in the principle design of these three aspects. In fact, in foreign countries, especially in Germany, making a product is very rigorous. 2-3 years is a very short cycle for a product from design to market launch. This is also the reason why DESSMANN came to China relatively late. When DESSMANN came to China, it first redesigned and developed it for the Chinese market. From the main mechanical structure to the circuit schematic, it has been repeatedly reviewed and tested by the German side.

The selection of materials has also been refined. DESSMANN is in the high-end market and uses very high-quality materials. Many mechanical materials have not been used by other brands in the industry. The main chips are also imported from Germany, the United States and other countries. This is a cornerstone of the stability of fingerprint lock products.

There is also the standard of craftsmanship. As we all know, the rigor of German craftsmanship is well-known all over the world. Finally, there is the control system of the production process. DESSMANN has to undergo more than 30 strict inspections and controls from accessories to delivery. This is something that other manufacturers who compete in the market with price cannot achieve. Only when the above four aspects are strictly controlled can a truly stable fingerprint lock be produced.

Fingerprint locks are a popular industry at present. After all, fingerprint locks are a trending product that replaces traditional mechanical locks, card locks, and password locks. Technically speaking, many functions and performances of DESSMANN are far ahead in the industry. It can be said that "I have what others don't have, I am better than others, and I have what others don't have." Although it has not been long since it entered China, DESSMANN is a well-deserved industry leader in many regional markets, relying on its unique technology and stable products, especially in the mid-to-high-end market, where it can be said to be the leader.

At the end of the interview, the author asked DESSMANN whether it would add a "lock" to our campus in future market planning, referring to the previous school safety incidents, and the State and Ministry of Education have issued orders to strengthen safety precautions in kindergartens, primary and secondary schools.

Regarding this issue, the person in charge of DESSMANN also made it clear that the safety of schools is now a concern of the whole society. As a responsible enterprise, DESSMANN is also thinking about this issue. As fingerprint locks, DESSMANN's products are currently mainly for anti-theft doors and fire doors in residential areas, and there are no products designed specifically for semi-open doors such as schools. We will consider conducting special research and development for schools, but we will do so through public welfare methods such as donations, which is also the social responsibility that a company should bear.