JP2552281B2 - Personal verification device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Outline] The present invention uses a fingerprint as personal characteristic information for recognizing an individual, and registers registered personal characteristic information as a high-speed small-capacity internal storage unit and a low-speed personal information storage unit. The storage order of the registered personal characteristic information is rearranged by storing the personal characteristic information registered in the internal storage section by the use frequency control section at the time of collation, separately stored in a large-capacity external storage section, The feature information of a person who is frequently collated is preferentially collated at high speed.

[Industrial applications]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a personal collation device that inputs personal characteristic information and collates it with registered personal characteristic information, and more particularly to a personal collation device that is capable of collating persons with high frequency of collation at high speed.

[Conventional technology]

With the introduction of computers into a wide range of social systems in recent years, there is an urgent need to establish system security technology. In particular, the correct identification of the person who handles this system is an important issue. For example, an identification (ID) card, a password, a personal identification number, etc. have been put into practical use as means for confirming the identity when entering a computer room or using a terminal, but it cannot be said that this is always perfect in terms of ensuring security. Many questions have been raised. On the other hand, fingerprints are considered to be the most effective means for personal recognition because they have the characteristic of being “universal and invariant to all people”, and various simple personal identification systems using fingerprints have been proposed.

[Problems to be solved by the invention]

FIG. 4 is a system diagram showing a configuration of a conventional individual collation device. In FIG. 1, the personal collation device 1 stores the personal characteristic information input by the personal characteristic information input unit 2 and stored in the personal characteristic temporary storage unit 3 and the personal characteristic information stored in a portable storage medium in the storage medium information input unit. The comparing unit 6 is configured to compare with the registered individual characteristic information input in 4 and stored in the registered individual characteristic information temporary storage unit 5. Since this personal collation device 1 stores the personal characteristic information in a portable storage medium, the personal collation device 1 does not reach the hands other than the user himself or herself and has little resistance when using a fingerprint or the like, and is configured to be easily accepted. There is a feature that you can do it. However,
There is a problem that an expensive medium such as an IC card must be used as a storage medium because the capacity of the personal characteristic information is about 1 KB.

Therefore, a method of collectively storing individual characteristic information on the system side has also been proposed. FIG. 5 is a system diagram showing a configuration of a conventional individual collation device which is collectively stored on the system side. The same parts as those in FIG. 4 are designated by the same reference numerals. In the figure, the personal collation device 7 inputs the personal characteristic information in the personal characteristic information input section 8 and the personal identification number in the personal identification input section 4, and the registered personal characteristic information is stored in the RAM of the computer side.
Internal storage unit 9 such as a hard disk, and external storage unit 10 such as a hard disk
Is stored in the memory and is compared by the comparison unit 6. In this personal collation device 7, since the capacity of the internal storage unit 9 on the system side is limited, the personal characteristic information is stored in the external storage unit 10 in a practical system. Therefore, the personal characteristic information is transferred from the external storage unit 10 to the internal storage unit 9 at each collation, but at this time, it takes several seconds to several tens of seconds, which is shorter than the collation processing time (1 to 2 seconds). There was a problem that the waiting time became long.

The present invention has been made on the basis of the above-mentioned problems, and an object of the present invention is to accurately recognize an individual by using a fingerprint as personal characteristic information and to reduce the waiting time for collation for a person who is frequently used. It is another object of the present invention to provide a personal collation device capable of preferentially performing high-speed collation.

[Means for solving problems]

 FIG. 1 shows a principle explanation diagram of an individual collation apparatus of the present invention.

In FIG. 1, 11 is a personal collation device, 12 is a personal characteristic information input unit, 13 is a personal characteristic information temporary storage unit, 14 is a personal identification information input unit, 15 is an internal storage unit of registered personal characteristic information, 16
Is an external storage unit for registered personal characteristic information, 17 is a use frequency control unit for returning the used registered personal characteristic information to the internal storage unit 15 and rearranging it, and 18 is a personal characteristic information comparison unit.

[Action]

An individual is accurately recognized by using a fingerprint as personal characteristic information for recognizing the individual. If you have a high matching frequency,
Since the corresponding registered personal characteristic information is rearranged and stored in the high-speed small-capacity internal storage unit 15 by the use frequency control unit 17, the reading is faster than when it is stored in the external storage unit 16. , The waiting time of the collation becomes short for the person whose collation frequency is high.

〔Example〕

Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a diagram illustrating the principle of an individual collation device according to an embodiment of the present invention.

In FIG. 1, the personal characteristic information input unit 12 of the personal collation device 11 is a portion where fingerprint information is input as personal characteristic information at the time of personal collation, and for example, a flat fingerprint sensor or the like is used. As shown in FIG. 2, this flat-plate fingerprint sensor has a finger 20 which is brought into contact with the upper surface of a transparent flat plate 19 made of a flat glass plate.
Further, the laser light 21 is illuminated from below, the reflected light of the ridge 20a of the finger 20 is repeatedly totally reflected and is taken out to the outside by the hologram 22, and this light is converted into an electric signal by the image pickup device 23 and the like, and a fingerprint image is obtained. Is the part where the information of is input. The information on the fingerprint image is stored in the temporary storage unit 13 for personal characteristic information (fingerprint).

The personal identification information input unit 14 is such that an identification number or the like determined for each individual as personal identification information is read by a numeric keypad or the like or identification information stored in a storage medium is read by a reading device.
This is the part that is input.

On the other hand, personal characteristic information to be collated is stored in the internal storage unit 15 such as a high-speed small-capacity RAM (random access memory) of the computer.
And stored in the external storage unit 16 such as a low-speed large-capacity hard disk. The personal characteristic information comparison unit 18 includes a temporary storage unit 13
Personal characteristic information stored in the personal identification information input section
The registered personal characteristic information corresponding to the personal identification information (identification number, etc.) input by 14 is sequentially searched from the top address of the internal storage unit 15, and if not stored, the external storage unit 16 is further searched. This is a part for comparing and collating with the registered personal characteristic information that has been read. The usage frequency control unit 17 is a unit that controls to relocate the used registered personal characteristic information in the internal storage 15 in order to determine the priority order.

FIG. 3 is a system diagram showing a method of determining the priority order of the usage frequency control unit 17. That is, the registered personal feature information compared by the personal feature information comparison unit 18 is returned to the head address of the internal storage unit 15, and the information of the address that has been conventionally stored is sequentially forwarded, and the information that is out of the final address. Controls to be transferred to and stored in the external storage unit 16.

In the personal collation device 11 having the above configuration, when collating, the fingerprint information is input to the personal characteristic information input unit 12 and the identification number or the like is input from the personal identification information input unit 14 using the ten keys. The input fingerprint information is stored in the temporary storage unit 13, and the registered fingerprint information corresponding to the identification number is searched from the start address of the internal storage unit 15, and if there is no such information, the external storage unit 16 is further searched and read. The personal characteristic information comparison unit 18 performs collation. The registered fingerprint information that has been verified is
While being returned to the head address of the internal storage unit 15, the previously stored registered fingerprint information is sequentially forwarded and rearranged. Therefore, the person who has a high frequency of matching is always in the internal storage unit 15.
Since it is stored in, the read time is shortened and the waiting time until the end of matching is shortened.

The personal characteristic information of the present invention is not limited to the fingerprint, and may be any characteristic information that can accurately identify the person. The input unit is also applied to a prism type fingerprint sensor other than the flat plate fingerprint sensor using a hologram. It Further, the personal identification information input unit 14 may be one which inputs an identification number by a ten-key pad, and may be stored in an easily portable storage medium, for example, a magnetic card or an embossed card, and read out for collation. Further, the use frequency control unit 17 may be controlled so that registered personal characteristic information of at least a person having a high matching frequency is preferentially stored in the internal storage unit 15. For example, the head address is counted in descending order of counting the matching frequency. May be rearranged.

〔The invention's effect〕

As described above, according to the present invention, since a fingerprint is used as the personal characteristic information, an individual can be accurately recognized, and a person with a high collation frequency can register the registered personal characteristic information with high speed and small capacity. Since it is stored in the internal storage unit and the waiting time for collation is shortened, high-speed collation is preferentially performed.

[Brief description of drawings]

FIG. 1 is an explanatory view of the principle of an individual collation device according to an embodiment of the present invention, FIG. 2 is an explanatory view of the structure of a fingerprint sensor as an individual characteristic information input section of FIG. 1, and FIG. 3 is of FIG. FIG. 4 is a system diagram showing a method of determining the priority of the usage frequency control unit, FIG. 4 is a system diagram showing a configuration of a conventional individual collation device, and FIG. 5 is a system diagram showing a configuration of a conventional individual collation device. 11 …… Personal collation device, 12 …… Personal feature information input unit, 13 …… Personal feature information temporary storage unit, 14 …… Personal identification information input unit, 15 …… Internal storage unit of registered personal feature information, 16… … External storage of registered personal feature information, 17 …… Use frequency control unit, 18 …… Personal feature information comparison unit.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Yuki Yahagi 1015 Kamiodanaka, Nakahara-ku, Kawasaki City, Fujitsu Limited (72) Inventor Hiroyuki Ikeda 1015, Uedotachu, Nakahara-ku, Kawasaki City, Fujitsu Limited (72) Inventor Yufumi Inagaki 1015 Kamiodanaka, Nakahara-ku, Kawasaki-shi, Fujitsu Limited (56) References JP 61-151788 (JP, A) JP 58-18747 (JP, A) JP 62-42285 (JP, JP, A) A)

Claims (5)

(57) [Claims] 1. A personal characteristic information input section (12) for reading a fingerprint by using a flat fingerprint sensor using a hologram (22), a prism type fingerprint sensor or the like and inputting it as personal characteristic information, and the personal characteristic information. A temporary storage unit (13) for temporarily storing the personal characteristic information input by the input unit (12), a personal identification information input unit (14) for inputting personal identification information, and an individual registered in association with the personal identification information. A high-speed, small-capacity internal storage section (15) and a low-speed, large-capacity external storage section (16) for storing characteristic information, and personal characteristic information stored in the temporary storage section (13) are stored in the personal identification information input section. A personal characteristic comparison unit (18) for collating by comparing with registered personal characteristic information stored in an internal storage unit (15) or an external storage unit (16) according to the personal identification information input in (14). And stored in the temporary storage unit (13) If the registered personal characteristic information is matched with the registered personal characteristic information by the personal characteristic comparison unit (18), the frequency of the registered personal characteristic information is counted, and registration is performed from the top address of the internal storage unit (15) in the descending order of the counted matching frequency. An individual collation apparatus comprising: a use frequency control section (17) for rearranging completed individual characteristic information. 2. The personal collation apparatus according to claim 1, wherein the personal identification information input unit (14) is a ten-key input unit. 3. The personal identification information input section (14) is an input section for inputting a personal identification number by storing the personal identification number in a portable storage medium and reading the contents stored in the storage medium. The personal collation device according to claim 1, wherein the personal collation device is present. 4. The personal collation device according to claim 3, wherein the storage medium is a magnetic card. 5. The personal collation device according to claim 3, wherein the storage medium is an embossed card.