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Home > > Basic Knowledge about Fingerprint Lock Product |
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| 1. working Principle of Fingerprint Lock |
Collect Samples: Take pictures of fingerprints for memory via fingerprint reader → Save templates and carry out authentication: Save and compare collected information received; the driver receives the signal operation to indicate if the door will be opened. |
| 2. Safety of Fingerprints. |
The following major features are characteristic of human’s fingerprints: a. Human’s fingerprints are of unique features. According to experts of fingerprints, the repetition probability of human’s fingerprints is one 5 billionth, and the accuracy and complexity of features are sufficient to meet the demand of extremely difficult identification; b. With diversified selections, everyone can select more than 10 fingerprints; c. It features to be steady and of reliable read access; d. Collection of fingerprints is of non-destructive and non-sensitive collection which can be easily accepted by people whose fingerprints are collected.
Fingerprints required by Digi Lock must be in vivo. Therefore, the safety is improved to some extent.
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| 3. Impact of Fingerprint keypad lock on Real Estate Developers |
If real estate developers select fingerprint keypad lock, it can notably enhance the class of housing project, realize intellectualization of building, do good to relieving sales pressure, and etc.
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| 4. As to the safety of keypad lock, is there only 78 groups which can be easily decoded? |
The possibility to decode keypad lock is one 60 thousandth, so the safety coefficient is rather high. 78 groups of codes mean the availability of keypad lock to save 78 groups of codes.
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| 5. What are fingerprint content, basic directions, used temperature and humidity, function of emergency power supply, function of application of codes with time limit, double codes or double fingerprints, optical module and semi-conductor module, special requirements of color for surface disposal and manufacturing materials? |
| Content of fingerprints and code |
Content of keypad lock: 300 groups |
| Fingerprint & keypad lock: 150 fingerprints, 78 groups of codes |
| Basic directions (mode of opening door) |
keypad lock: code + Mechanical key |
| Fingerprint & keypad lock: Fingerprint + code + Mechanical key (RF card or Tag is also available) |
| Used temperature and humidity, temperature for storage |
Operating temperature of fingerprints: -20℃~60℃, operating temperature of code: -30℃~70℃ |
| Operating humidity: 10%~97%, temperature for storage: -30℃~70℃ |
| Emergency power supply |
Power supply via externally connected power |
| Function of application of code with time limit |
The following functions can be selected by particular users: Set date, set time, set time period for opening door, cancel time period for opening door |
| Double codes, double fingerprints |
The function of double codes refers to that door can only be opened when two groups of codes are input at the same time |
| The function of double fingerprints refer to that door can only be opened when two fingerprints are input at the same time |
| Optical module, semiconductor module |
Optical module features uneasiness to be affected by external light source, strong stability, small volume, light weight, resistance to static electricity and long life span. |
| Compared to optical module, semiconductor module features relatively weak stability. Besides, it takes the contact-style way to collect fingerprints, which is not so accurate for fingerprint collection |
| Special requirements of color for surface disposal |
The technical requirements including color and etc. can be requested from factory |
| Material of lock body |
Front side and back side of lock body is both of steel material with high intensity |
| Keyboard for code is of plastics with high intensity |
| Power consumption of static electricity and dynamic electricity |
Power consumption of static electricity＜30μA |
| Power consumption of dynamic electricity 150~300mA |
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| 6. What is networked fingerprint lock or networked keypad lock |
| Networked fingerprint lock or networked keypad lock refers to the lock which can be controlled directly via network connection, including collection of fingerprints, setting of code, deletion of fingerprints or codes, and etc. As for hotel management, customers can input fingerprints or codes at front desk, and open the door directly with fingerprints or codes when they arrive at rooms, which is applicable to hotel or apartment. |
| 7. Comparison between motor drive and sealed electromagnet drive |
Motor drive: When motor is installed in core insert, under continuous friction and pressure of mechanical parts, motor can easily get crashed, which will either make lock unopened or door unlocked. Therefore, it’s hard to control quality! What’s more troublesome, distributors who have been trained repeatedly can’t reach the level to repair core insert in repair technology, so that it takes a long time for users to wait for the replacement of entire product, complaints never stops, and users also have no alternative.
Sealed electromagnet drive: The advanced mechanical structure not only avoids the interference of magnetic field, but also reduces the friction of machinery to a great extent. In particular, it stays away from the friction of core insert, and ensures the basic requirements of electronic door lock to be simple and steady to the maximum extent. |
| 8. Years for use of fingerprints and correct method to input fingerprints |
The resolution of fingerprints of Digi door lock is 560pdi, which can be used to identify fingerprints of children above 5 years old.
The correct method to input fingerprints is: “1+#”+ master code + “#” + fingerprint + “one sound of Di”, one fingerprint is generated after it is input for two successive times; at this time, the next fingerprint can be input.
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| 9. Forget codes or master code. Is it good to have long codes |
There are 8 digits for code of Digi fingerprint lock, and 6 digits for pure keypad lock. If codes are too long, it is not convenient to be kept or memorized. Therefore, 6-8 digits are the most reasonable one as codes.
There is a small button inside the front lock body of Digi Door Lock. It is called reset key. When code or master code is forgotten, the ex-factory state will be restored when you just need to press the button for 3 seconds.
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| 10. When battery runs out of electricity, will fingerprints or codes be lost? |
| The chip used to save fingerprints and codes in Digi Door Lock is operated without electricity. When the capacity in battery is not sufficient, the alarm for low voltage will appear. Even after battery runs out of electricity, fingerprints or codes won’t get lost either. |
| 11. Advantages of Digi fingerprint keypad lock |
| With patented appearance, U-type protective handle, free handle and advanced drive mode---patented drive structure ensures 15-year lifespan of door lock in real sense. ----------It can be proved by users who keep using it till now. |
| 12. How can the functions of door locks be matched (Mechanical key, code, fingerprints, inductive card or inductive rod MIFAREI card) |
| We can match the functions at random according to requests of clients. For general fingerprint keypad lock, there are three ways to open doors via mechanical key, code and fingerprint. If clients request it, the functions of inductive card or inductive rod can be increased. |
| 13. Why Digi is regarded as the largest production enterprise of fingerprint keypad lock in China? |
| Vice president of Guangdong Provincial Security & Defense Association affiliated to Guangdong Provincial Department of Public Security and president of Electronic Door Lock Branch; with 15-year professional experience in production; with the most diversified styles of door locks among all the manufacturers in the world; the only Chinese enterprise where 90% processes are completed in the factory; the Chinese enterprise in which the quality of door locks is insured in China Pacific Insurance (Group) Co., Ltd. |
| 14. All-in-one card |
| All-in-one card in the community is also a featured business in our company. Our all-in-one card is Mfare.1 card of Philips. There is a unique ID No. in every card, and there are 15 sectors in the card (equivalent to 15 independent cards). Our door locks can also be compatible with other cards, and users just need to offer card model or ID No. |
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