Automatic biometric time and attendance engineering is from science fiction and Artist movie into our true to life, maybe one day, you don't have to have that a bunch of keys, merely a click of the fingers, the entranceway will open; Also don't need to remember that annoying password, employing fingerprint can drawings, personal computer login. Believe this one day, not too far away. Second, the system structure.In fingerprint assessment algorithm, there are two major notion, validation and identify; Affirmation also is what we used to declare 1:1 algorithm, identify is 1: N criteria. At the same time than the fingerprint criteria and two important parameters via enumerating rate and truthful straightforwardness. A couple of.1 fingerprint time clock verification Validation is often a field the collected pistol safe and a has been registered finger prints on one-to-one comparison (one - to - one matching), to confirm the particular identity of the process. Being a verification condition, his or her fingerprints must be in fingerprint storehouse has been registered. fingerprint time clock to certain compressed format storage area, and its name or its identification (ID, PIN) linked. Then in than in your scene, to verify its detection, and then, use system finger print with the field acquisition fingerprint than to prove its detection is legal. Validation is actually to answer such a question: "he is his would-be this man?In . This is the application system to use it more.
Induction employee time clock Advantages: non-contact card read, card, no wear, no wrong size indicated. Faults: card cost on the high side, can not solve the "generation of punch" problem. 6. Fingerprint attendance machine Advantages: no need to card, solve problems and punch. Faults: requirements personnel quality is good, fingerprint for cleaning, against the destruction of ability and stability need to further improve the (currently at the beginning stage). 7. Eye rainbow roll machine The ideal roll machine. Advantage: make use of the eyes of the one feature to identify different people, to do with the non-contact method to identify the characteristics, identification speed is less than 1 second.
the biometric time clock Disadvantages: the cost is high, has not yet to enter the Chinese market. 8. All roll machine should be the necessary quality Time accurate, attendance data not easily disturbed lost or chaos (occasional unavoidably), communication with the computer stability. Second, the attendance software It seems that everybody can write check on work attendance software, if it is right for you to see your request. Easy to use, stable and practical. Third, the choice of the company The success or failure of check on work attendance system half is to rely on to provide you with products of company body. In the term of your requirement has the ability to provide after-sales service can. Otherwise, your system will be failed.
Because computer processing fingerprint, just involved fingerprint some limited information, and comparison algorithm is not precise matching, and the result will not guarantee 100% accurate. fingerprint time clock the specific application of the important measure of mark is recognition rate. Mainly consists of two parts, refuse truthful straightforwardness (FRR) and deterrent rate (FAR). We can according to the different USES to adjust the two value. FRR FAR and is inversely proportional. Use 0-1.0 or percentage to express this number.
time and attendance systems background knowledge The palms and fingers, ft, toes medial surface pores and skin rough and uneven develop lines will form many design. The existence of these materials increased at the surface of the skin chaffing, so that we can use palm to grab the weight. People also pay attention to, including biometric time clock, the skin texture in the design, breakpoint and crossing each usually are not identical, that is to say, is the simply. Rely on this uniqueness, we could put a man with his pistol safe corresponding up, through to his fingerprints and preserved finger print comparison, it can be used to verify his or her true identity. This rely on human body characteristic to carry out identification verification technology, called organic recognition technology, fingerprint acknowledgement is a kind of biological recognition engineering.
Biometric attendance and time is a great facility for any firm, It really helps in lot in management.
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Posted by: Jennifer Cole | 03/26/2013 at 07:51 下午