1、一种基于指纹识别的IC卡门禁系统一种基于指纹识别的IC卡门禁系统中英文翻译An Intelligent Card Entrance Guard System Based on FingerprintAbstractAn intelligent card entrance guard system based on fingerprint identification is proposed in this paper. The total idea designed for this system is described firstly, and then the implementatio
2、n of hardware and software of SCM in this system are discussed. The identification and other problems in the previous paper tickets systems can be solved very well bu using the combination of fingerprint identification and intelligent card technologies.Key words: Fingerprint entrance guard, Intellig
3、ent card, fingerprint identification, Single chip microcomputer(SCM)Situations and so on subway which, tourist attraction entrance must enter many times regarding a ticket system, the traditional paper booking way more and more was not already suitable for various divisional management request, carr
4、ies on the computer electron admission ticket management is the social development ultimately. And the entrance status authentication is the entrance guard management core work. In the present many computer system, users status authentication uses mostly; User ID+ password Method. In fact, this meth
5、od conceals the password easily to forget, may to transmit, easily by others theft with and so on security problem, simultaneously needs the password input in the entrance not to suit the stream of people quantity big public place, therefore needs one more convenient reliable status authentication p
6、lan in the electronic entrance guard. In view in the above question, this article discussed one kind to develop successful based on the mature fingerprint biology recognition technology and the IC card technology electronic entrance guard system, it has The person card unites The function, facilitat
7、es carries on the entrance status authentication reliably, is very advantageous for the divisional mana.1. Entrance guard system overall concept1.1 The person card unites Design mentalityThe biological recognition technology is one kind according to humanitys physiological characteristic (fingerprin
8、t, sound, the face, iris and so on) carries on individual status authentication to debate knows the technology. In recent years, along with information industries development, the biological recognition technology in domestic and foreign obtained more and more extensive research and the application.
9、 And the fingerprint automatic diagnosis technology develops the maturest one biological recognition technology now, the fingerprint takes the human body biology recognition one way, it has the following several remarkable merits: (1) determinism: Each fingerprint in person six month-long time forms
10、, lifelong will not change later, even if is scratched, the burn, so long as will not injury and the dermis, will not change his fingerprint shape. (2) uniqueness: Two completely same fingerprints appear the probability is small, does not surpass 1/60000000000. (3) sample is simple: Only needs an el
11、ectric capacity or optics fingerprint gathering may gather the fingerprint image. The stored datum are few: In the fingerprint recognition uses the template is only the characteristic byte which withdraws from the fingerprint picture, but is not the view picture fingerprint picture, the characterist
12、ic bytes size is 300400B, the reserves is relatively small. On the other hand, compares the IC card with the magcard to take individual fingerprint the carrier also to have the following several merits: the (1) IC card service life is long, generally may repeatedly above the read-write 100,000 times
13、. (2) Card storage capacity is big , has the enough spatial depositing fingerprint image characteristic data. (3) encryption memory stick has the logical encryption function, the card the password protection, may prevent the illegal duplication. After entrance guard system card holder fingerprint en
14、cryption, saves on the smart card, and (or on system) installs the fingerprint recognition system in the smart card read-write machines and tools, when holds the card the card insertion smart card read-write machines and tools, the read-write machines and tools first read the fingerprint information
15、 and request the user compared to the fingerprint, through compared to and holds the card myself fingerprint to the card fingerprint to be possible to determine that holds the card whether for card genuine master. This then guaranteed only then the genuine card master to be able to use this card. We
16、 have installed this kind the fingerprint recognition system and the smart card read-write machines and tools roll-down door are called the fingerprint IC card roll-down door. Unify the fingerprint recognition technology and the smart card, is in the present entrance guard system the brightest outlo
17、ok status authentication plan. Not only it has solved the paper admission ticket status authentication difficult problem, moreover, because has realized The person card unites Computer management, also has provided the nimble entrance guard plan for the superintendent.1.2 System compositionBased on
18、the above design mentality and the general practical application request, the common fingerprint IC card entrance guard system is composed of 3 parts.(1) Entrance guard management system management system The entrance guard management. Subsystem completes the admission ticket management and sends th
19、e card two functions. And the admission ticket management software realizes management tasks and so on admission ticket record, inquiry, statistics. So-called sends the card is refers to before the card release for the user, needs by to send the card organization the card application series number,
20、the password, the permission use number of days and so on basic information to read in the user IC card this process. Generally speaking, the entrance guard manages PC machine to be possible to realize the data acquisition through two ways: Uses large capacity IC card artificial batch gathering or t
21、he underlying bed electron roll-down door network which forms through the serial port interconnection real-time completes entry data gathering. Regarding has many entrance entrance guard systems, like the large-scale soccer stadium, has the many scenic spot large-scale natural scenic spots and so on
22、, needs in the different place, to install many such subsystems. By now the system needed to be away from and the user request according to the place, manages PC machine various admission tickets to compose a local area network again, is advantageous for the various entrances global administration a
23、nd the data transmission. Regarding the large-scale stadium, between many entrances is away from near, uses 10M or the 100M ethernet is more appropriate. Regarding the large-scale natural scenic area or the subway, various entrances are away from far, and the terrain is complex, the string cable is
24、difficult, to use based on the analog communications way public telephone network (PSTN), basic may satisfy the system request. (2) fingerprint IC card The so-called fingerprint IC card, is refers to the record user biology fingerprint characteristic value and other information value memory IC card.
25、 In the entrance guard system, the fingerprint IC card is one electronic admission ticket which has only by the user. When the user uses for the first time, reads in together the card by the IC card roll-down door extraction fingerprint and with the current time, the card holder when each time will
26、enter later this card insertion card reader, will extend afterward the finger to the fingerprint gathering window, the card reader then automatically compares rightly in his fingerprint and the card fingerprint, will compare starts the roll-down door to the success to allow to pass, simultaneously w
27、ill record information and so on card number which, time will enter. At present in the market has many kinds of model IC cards, regarding each Manufacturers product, the characteristic is also different. For example American ATMEL Corporation produces at88C102 encryption memory stick, this clamping
28、apparatus have 1kB encryption EEPROM, the 2B password, 4 password comparison opportunity, 100,000 read-write circulation ability, definitely may meet the entrance guard systems needs. (3) IC card electron roll-down door fingerprint The IC card electron roll-down door is the key point which this arti
29、cle said that it by the fingerprint gathering confirmation module, the IC card reader-writer, the monolithic integrated circuit control system, the electrically operated roll-down door 4 parts is composed. And the first 3 parts organically dissolve in the roll-down door box body, forms an independen
30、t identification authentication together and, enters the control terminal. It may the independence completes when the card first use in the superior computer the user fingerprint extraction, read in with uses when once more identification authentication as well as the logical judgement and so on sev
31、eral elementary operation eos.1.3 IC card electron roll-down doorThe IC card electron roll-down door is the fingerprint entrance guard systems core, after discussing the entrance guard system design mentality and the system composition, the following will make the further introduction to the fingerp
32、rint IC card roll-down door various submodules composition and the function. (1) Fingerprint gathering verification module The digital fingerprint gathering verification module including a 35mm 35mm electro-optic induction board (i.e. gathering window OpticalUnit), 32 CPU, dynamic random-access memo
33、ry (DRAM), dodges saves (Flash Memory), part compositions and so on programmable logical component (PLD), its structure diagram as shown in Figure 2. It is one based on the third party product independent subsystem (e.g. American ATMEL-Grenoble division Corporations FCD4A14 series fingerprint sensor and so on). The fingerprin
