JP2008065446A - Fingerprint sensor unit and fingerprint collation device adopting the same fingerprint sensor unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fingerprint sensor unit and a fingerprint collation device for further reducing the size, and for more accurately creating fingerprint data with data quantity sufficient for fingerprint collation. <P>SOLUTION: A cylindrical finger insertion region 5 into which the finger is inserted in reading fingerprint is arranged inside a cylindrical finger support part 2 which supports the finger in reading fingerprint. Also, the fingerprint support part 2 is provided with a lower opening 6 and an upper opening 7. The lower opening 6 is arranged so that the fingerprint section of the finger inserted into the fingerprint insertion region 5 can be aligned. A light source part 3 is arranged at the side of the finger insertion region 5 configured to emit the rays of light transmitted through the finger of the finger insertion region 5, and passing through the lower opening 6. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a fingerprint sensor unit that reads a fingerprint of a user, and a fingerprint verification device that performs personal authentication using a fingerprint read by the fingerprint sensor unit.

In a conventional finger-penetrating fingerprint collation device, a finger is placed so that a fingerprint portion is aligned with a lower opening provided in a finger support portion. That is, the finger support part has a finger insertion area into which a finger is inserted when reading a fingerprint. A light source unit is provided directly above the finger insertion region so that the light to be irradiated passes through the finger in the finger insertion region and passes through the lower opening. A sensor unit that detects light emitted from the light source unit is provided below the finger support unit. Then, fingerprint data is created based on the output of the sensor unit (see, for example, Patent Document 1).
In another conventional apparatus, in order to prevent impersonation due to falsification of registered fingerprint data, one fingerprint data read is randomly divided at the time of fingerprint registration, and the divided data is stored in the first and second memories. The data are stored separately (see, for example, Patent Document 2).

JP 2005-208876 A JP 2002-312317 A

In the conventional fingerprint collation device as described above, the light source unit is arranged immediately above the finger insertion region, so that the height of the device itself (thickness or width depending on the installation method of the device) is equal to the light source unit. There was a problem that would become larger. Also, the area of the irradiated light is likely to overlap the position of the nail or finger bone, affected by the nail manicure or finger bone, and the fingerprint that can be detected by the sensor unit becomes unclear, which is sufficient for fingerprint verification. The amount of data could not be obtained.
In another conventional apparatus, since fingerprint data is randomly divided, the format and software of the fingerprint data become complicated, resulting in high cost. Further, it takes time to restore the randomly divided fingerprint data, and the verification time becomes long.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and the object of the present invention is to make it possible to further reduce the size of the fingerprint and more reliably create fingerprint data having a sufficient amount of data for fingerprint verification. It is to provide a sensor unit and a fingerprint collation device.
It is another object of the present invention to provide a fingerprint collation apparatus that can reduce the manufacturing cost and shorten the collation time while maintaining security.

The fingerprint sensor unit according to the present invention is provided with a finger insertion area where a finger is inserted during fingerprint reading and a lower opening where the fingerprint portion of the finger inserted into the finger insertion area is aligned to support the finger during fingerprint reading A finger support unit, a light source unit disposed on the side of the finger insertion region such that the irradiated light passes through the finger in the finger insertion region and passes through the lower opening, and a sensor unit that detects the light emitted by the light source unit Is provided.
In addition, the fingerprint collation device according to the present invention is provided with a finger insertion area where a finger is inserted during fingerprint reading and a lower opening where the fingerprint portion of the finger inserted into the finger insertion area is aligned. A fingerprint sensor unit including a finger support unit for supporting a finger, a light source unit for irradiating light passing through a finger in a finger insertion region and passing through a lower opening, and a sensor unit for detecting light emitted by the light source unit; The stored storage means controls the light emission operation of the light source unit and creates fingerprint data based on the output of the sensor unit, and collates the fingerprint data of the reading control unit with the fingerprint data of the storage unit The light source unit includes first and second light emitters that emit light from different directions to the finger in the finger insertion region, and the storage unit includes the first and second light emitters. 2 memory parts, fingerprint The capturing unit creates the first fingerprint data when the first light emitter emits light and the second fingerprint data when the second light emitter emits light. The first and second fingerprint data are stored separately in the first storage unit and the second storage unit.

According to the fingerprint sensor unit of the present invention, the light source unit is arranged on the side of the finger insertion region so that the light to be transmitted passes through the finger in the finger insertion region and passes through the lower opening. The influence of the light source unit on the thickness of the finger can be reduced, and the region of light overlapping the position of the nail or finger bone can be narrowed. The fingerprint sensor unit itself and a fingerprint collation device to which the fingerprint sensor unit is applied In addition to being able to downsize, fingerprint data having a data amount sufficient for fingerprint verification can be created more reliably.
According to the fingerprint collation device of the present invention, the fingerprint reading unit creates the first fingerprint data when the first light emitter emits light and the second fingerprint light when the second light emitter emits light. Fingerprint data is created, and when the fingerprint is registered, the first and second fingerprint data are stored separately in the first storage unit and the second storage unit, thereby eliminating the need to randomly divide the fingerprint data. Compared to the above-described another conventional apparatus, the software and the circuit configuration can be simplified, and the manufacturing cost can be reduced while maintaining the security. In addition, the means corresponding to another subject and its effect are demonstrated in the following embodiment.

The best mode for carrying out the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is a cross-sectional view of a main part of a fingerprint collation apparatus according to Embodiment 1 of the present invention, showing a fingerprint sensor unit 1 viewed from the side. In the figure, a fingerprint sensor unit 1 includes a cylindrical finger support part 2, a light source part 3, and a sensor part 4 that support a finger when reading a fingerprint. A columnar finger insertion region 5 is provided inside the finger support portion 2. A finger is inserted into the finger insertion area 5 as indicated by a two-dot chain line in the drawing at the time of fingerprint reading. A lower opening 6 and an upper opening 7 are provided on the peripheral wall of the finger support 2. The lower opening 6 is arranged so that the fingerprint portion of the finger inserted into the finger insertion area 5 can be matched. That is, the lower opening 6 is provided so as to remove the fingerprint portion from the lower portion of the finger support portion 2.

  The light source unit 3 is disposed on the side of the finger insertion region 5 so that the light to be transmitted passes through the finger in the finger insertion region 5 and passes through the lower opening 6. That is, the light source unit 3 is arranged so as to overlap the finger insertion region 5 when the light source unit 3 and the finger insertion region 5 are viewed from the side as shown in FIG. When viewed, it is disposed obliquely above the finger insertion area 5 (illustrated later).

  The sensor unit 4 includes a condensing lens 4a and a CCD image sensor (hereinafter simply referred to as a CCD) 4b which is an image sensor. The condensing lens 4 a condenses light that has passed through the finger and passed through the lower opening 6. The CCD 4a detects the light collected by the condenser lens 4a.

  The control means 10 determines whether or not a finger has been inserted into the finger insertion area 5 by determining a change in brightness of the finger insertion area 5 based on the output of the CCD 4a. Further, when it is determined that a finger has been inserted into the finger insertion area 5, the control means 10 controls the operation of the light source unit 3 and creates fingerprint data based on the output of the CCD 4a at that time. The control means 10 is a computer having a storage unit (RAM and ROM) that stores information such as a program and an arithmetic processing unit (CPU) that performs arithmetic processing based on the information stored in the storage unit. It is.

  Next, FIG. 2 is a cross-sectional view taken along line AA in FIG. 1 and shows a state in which the finger insertion region 5 is viewed from the insertion direction of the finger. In FIG. 2, the case of the light source unit 3 is omitted. FIG. 3 is an explanatory diagram showing fingerprint data created by the control means 10 of FIG. In FIG. 2, the light source unit 3 includes first and second light emitters 3L and 3R. The first and second light emitters 3L and 3R are connected to each other from the perpendicular bisector 6b of the opening plane 6a of the lower opening 6 when the finger insertion region 5 is viewed from the finger insertion direction as shown in FIG. It is shifted in the opposite direction. That is, the first and second light emitters 3L and 3R are arranged on the left and right with the vertical bisector 6b as the center when the finger insertion region 5 is viewed from the finger insertion direction as shown in FIG. . The conventional light emitter 50 is disposed on the vertical bisector 6b as shown by a two-dot chain line in FIG.

  The control means 10 creates the first fingerprint data 11L based on the output of the CCD 4a when the first light emitter 3L emits light. Further, the control means 10 creates the second fingerprint data 11R based on the output of the CCD 4a when the second light emitter 3R emits light. That is, the first and second fingerprint data 11L and 11R are fingerprint data read from two different directions.

  The first and second light emitters 3L and 3R are arranged such that an overlapping portion 11A is provided in the first and second fingerprint data 11L and 11R created by the control means 10. In other words, the first and second light emitters 3L and 3R are arranged so that the regions of light emitted from each of them overlap each other in the same part of the fingerprint. In this embodiment, the first and second light emitters 3L and 3R have lower portions whose optical axes are opposed to the first and second light emitters 3L and 3R so that the light regions overlap each other. It arrange | positions so that the edge parts 6L and 6R of the opening part 6 may be passed.

  The control means 10 stores in advance the pixel coordinates of the CCD 4a corresponding to the overlapping portion 11A in the first fingerprint data 11L and the pixel coordinates of the CCD 4a corresponding to the overlapping portion 11A in the second fingerprint data 11R. Based on the pixel coordinates, the control means 10 synthesizes the first and second fingerprint data 11L and 11R to create synthesized fingerprint data 11D. Further, when creating the composite fingerprint data 11D, the control means 10 performs fine adjustment of the synthesis by performing pattern matching of the first and second fingerprint data 11L and 11R. That is, the control means 10 synthesizes the fingerprint data 11L and 11R based on the overlapping portion 11A of the first and second fingerprint data 11L and 11R.

  Here, the first and second light emitters 3L and 3R are arranged such that the angle between their optical axis and the opening plane 6a is 30 degrees to 70 degrees. This is because if the angle is set to be larger than 70 degrees, the region of light to be irradiated overlaps with the position of the nail and finger bone, and the fingerprint that can be detected by the sensor unit 4 may become unclear. This is because it becomes expensive. If the angle is set to be smaller than 30 degrees, the amount of light passing through the lower opening 6 is reduced because the angle is too small, and the fingerprint that can be detected by the sensor unit 4 is likely to be unclear. This is because it becomes.

  In particular, when the angle is set to 40 degrees to 65 degrees, more suitable fingerprint data can be obtained. Specifically, when the angle is set to 40 degrees to 65 degrees, the first and second fingerprint data 11L and 11R are individually obtained while obtaining a sufficient amount of light for the sensor unit 4 to clearly detect the fingerprint. A sufficient reading range can be ensured even when used for collation. In this embodiment, the first and second light emitters 3L and 3R are arranged so that the angle is 65 degrees. That is, as will be described in another embodiment, the first and second light emitters 3L and 3R can obtain a data amount sufficient to individually collate the first and second fingerprint data 11L and 11R. Are arranged as follows.

  Next, FIG. 4 is a block diagram showing the whole fingerprint collation apparatus of FIG. In the figure, a fingerprint collation device main body 15 is for reading a fingerprint, creating fingerprint data, registering fingerprint data, and collating fingerprint data, and is disposed at an entrance or the like where traffic management is performed, for example. The fingerprint collation device main body 15 has a fingerprint sensor unit 1, a control means 10, a main body communication unit 16, a registration button 17, and a main body memory 18 as a first storage unit. The fingerprint sensor unit 1, the control means 10, the main body communication unit 16, the registration button 17, and the main body memory 18 are provided in the same casing.

  The main body communication unit 16 has a predetermined communication area. The main body communication unit 16 performs wireless communication such as near field radio such as Bluetooth (registered trademark) or infrared radio with the mobile terminal 20 in the communication area. As the mobile terminal 20, an IC card or a mobile phone having a short-range wireless communication function that is used in recent electronic money or a liquid ticket gate is used. The portable terminal 20 includes a portable terminal memory 21, a portable terminal communication unit 22, and a processing unit 23 that are second storage units. The mobile terminal memory 21 stores a user ID 21a in advance.

  Here, the operation modes of the control means 10 include a standby mode, a registration mode for registering user fingerprint data, and a verification mode for verifying user fingerprint data. The control means 10 includes a fingerprint reading unit 10a that performs a fingerprint reading operation and a collation unit 10b that collates fingerprint data.

  The fingerprint reading unit 10a inputs an ID request signal to the main body communication unit 16 when operating in the standby mode. The main body communication unit 16 issues an ID request signal from the fingerprint reading unit 10a to the communication area. When receiving the ID request signal from the main body communication unit 16, the mobile terminal communication unit 22 inputs the ID request signal to the processing unit 23. When detecting the ID request signal, the processing unit 23 transmits the user ID 21 a of the mobile terminal memory 21 to the main body communication unit 16 via the mobile terminal communication unit 22. The main body communication unit 16 inputs the received user ID 21 a to the control means 10.

  When the user registers his / her fingerprint, the user operates the registration button 17 and causes the fingerprint collation apparatus body 15 to read the user ID 21a of the portable terminal 20 being carried. The registration button 17 inputs a registration command signal to the control means 10 in accordance with a user operation. That is, when the fingerprint reading unit 10a detects the registration command signal from the registration button 17 and the user ID 21a from the main body communication unit 16 while operating in the standby mode, the operation mode is set to the registration mode. Switch.

  When the fingerprint reading unit 10a operates in the registration mode, the fingerprint reading unit 10a controls the operation of the fingerprint sensor unit 1 and creates the first and second fingerprint data 11L and 11R based on the output of the fingerprint sensor unit 1. Hereinafter, for convenience of explanation, the first fingerprint data 11L and 11R created in the registration mode are referred to as first registered fingerprint data Lt and Rt.

  Further, the fingerprint reading unit 10a stores the created first registered fingerprint data Lt in the main body memory 18 in association with the user ID 21a. Furthermore, the fingerprint reading unit 10 a inputs an ID request signal to the main body communication unit 16 and acquires the user ID 21 a from the portable terminal 20 again. Furthermore, the fingerprint reading unit 10a determines whether or not the user ID 21a when the operation mode is switched matches the user ID 21a after the fingerprint is read. The created second registered fingerprint data Rt is input to the main body communication unit 16 and transmitted to the portable terminal 20. The processing unit 23 stores the second registered fingerprint data Rt received by the mobile terminal communication unit 22 in the mobile terminal memory 21. Further, the processing unit 23 stores the second registered fingerprint data Rt in the portable terminal memory 21, and then transmits the user ID 21 a to the main body communication unit 16.

  The fingerprint reading unit 10a determines whether or not the main body communication unit 16 receives the user ID 21a from the portable terminal 20 within a predetermined time after inputting the second registered fingerprint data Rt to the main body communication unit 16. Further, when the main body communication unit 16 determines that the user ID 21a has been received, the fingerprint reading unit 10a determines whether or not the user ID 21a matches that at the time of operation mode switching, and determines that they match. In the case, registration completion is displayed on the display unit. That is, the fingerprint reading unit 10 a stores the created first and second fingerprint data in the main body memory 18 and the portable terminal memory 21. When the fingerprint reading unit 10a determines that the user ID 21a received by the main body communication unit 16 does not match the one at the time of switching the operation mode, the first registered fingerprint data Lt stored in the main body memory 18 and The user ID 21a is deleted, and a registration failure is displayed on a display unit (not shown).

  In addition, when performing the fingerprint collation, the user causes the fingerprint collation apparatus body 15 to read the user ID of the mobile terminal 20 without operating the registration button 17. That is, when the fingerprint reading unit 10a operates in the standby mode and detects only the user ID 21a from the main body communication unit 16 without detecting the registration command signal, the fingerprint reading unit 10a switches the operation mode to the verification mode.

  When the fingerprint reading unit 10a operates in the collation mode, the fingerprint reading unit 10a controls the operation of the fingerprint sensor unit 1 and creates the first and second fingerprint data 11L and 11R based on the output of the fingerprint sensor unit 1. Hereinafter, for convenience of explanation, the first and second fingerprint data 11L and 11R created when operating in the collation mode will be referred to as first and second collation fingerprint data Ls and Rs. The fingerprint reading unit 10a associates the first and second collation fingerprint data Ls and Rs with each other and temporarily stores them in the main body memory 18 and inputs the user ID 21a and the collation command to the collation unit 10b.

  Based on the user ID 21a and the verification command from the fingerprint reading unit 10a, the verification unit 10b acquires the first registered fingerprint data Lt associated with the user ID 21a from the main body memory 18. In addition, the collation unit 10 b inputs an ID request signal to the main body communication unit 16 and acquires the user ID 21 a from the mobile terminal 20 again. Furthermore, the collation unit 10b collates the user ID 21a input from the fingerprint reading unit 10a with the user ID 21a acquired from the ID card 20, and determines that the fingerprint data request signal matches the main body Input to the communication unit 16 to obtain the second registered fingerprint data Rt from the ID card 20. Furthermore, the collation unit 10 b temporarily stores the acquired first and second registered fingerprint data Lt and Rt in the main body memory 18.

  Further, the collation unit 10b creates the combined collation fingerprint data Ds by synthesizing the first and second collation fingerprint data Ls and Rs temporarily stored in the main body memory 18 based on the overlapping portion 11A. The first and second registered fingerprint data Lt and Rt are synthesized based on the overlapping portion 11A, thereby creating synthesized registered fingerprint data Dt. Further, the collation unit 10 b collates the created synthetic collation fingerprint data Ds with the synthetic registration fingerprint data Dt, and outputs the collation result to the control object 30. The control target 30 is, for example, a lock control device that controls locking and unlocking of an electric lock.

  Next, the operation will be described. FIG. 5 is a flowchart showing a fingerprint registration operation performed in the registration mode by the control means 10 of FIG. In the figure, when the registration button 17 is operated and the fingerprint registration operation is started by detecting the input of the user ID 21a, the change in the brightness of the finger insertion area 5 is determined based on the output of the CCD 4a. Thus, the fingerprint reading unit 10a determines whether or not a finger is detected in the finger insertion area 5 (step S1).

  At this time, if it is determined that a finger has been detected, the first light emitter 3L emits light under the control of the fingerprint reading unit 10a (step S2), and the first registration is performed based on the output of the CCD 4a at that time. Fingerprint data Lt is created (step S3). Next, the second light emitter 3R emits light under the control of the fingerprint reader 10a (step S4), and second registered fingerprint data Rt is created based on the output of the CCD 4a at that time (step S4). S5).

  Next, the first registered fingerprint data Lt is associated with the user ID 21a and stored in the main body memory 18 (step S6), and an ID request signal is input from the fingerprint reading unit 10a to the main body communication unit 16 to carry the mobile phone. The user ID 21a is acquired again from the terminal 20 (step S7).

  Next, the fingerprint reading unit 10a determines whether or not the user ID 21a when the operation mode is switched and the user ID 21a acquired again match (step S8). If determined, the second registered fingerprint data Rt is input from the fingerprint reading unit 10a to the main body communication unit 16, and the second registered fingerprint data Rt is transmitted to the portable terminal 20 (step S9). In the mobile terminal 20, the received second registered fingerprint data Rt is stored in the mobile terminal memory 21. When the storage of the second registered fingerprint data Rt is completed normally, the user ID 21 a is transmitted from the portable terminal 20 to the fingerprint verification apparatus body 15.

  After the second registered fingerprint data Rt is transmitted to the mobile terminal 20, the fingerprint reading unit 10a determines whether or not the user ID 21a from the mobile terminal 20 is received by the main body communication unit 16 within a predetermined time. (Step S10) When it is determined that the user ID 21a has been received, the fingerprint reading unit 10a determines whether or not the user ID 21a received again from the portable terminal 20 matches the user ID 21a at the time of operation mode switching ( Step S11). At this time, if it is determined that they match, registration completion is displayed on the display unit (step S12), and the fingerprint registration operation is terminated.

  On the other hand, when it is determined that the user ID 21a from the mobile terminal 20 has not been received by the main body communication unit 16 within a predetermined time, and before and after the second registered fingerprint data Rt is transmitted to the mobile terminal 20 If it is determined that the user IDs 21a do not match, a registration failure is displayed on the display unit (step S13), and the first registered fingerprint data Lt and the user ID 21a stored in the main body memory 18 by this operation are displayed. Are deleted (step S14).

  Next, FIG. 6 is a flowchart showing a fingerprint collation operation performed by the control unit 10 in FIG. 4 in the collation mode. In the figure, when the fingerprint collation operation is started by detecting only the user ID 21a from the main body communication unit 16 without detecting the registration command signal from the registration button 17, the finger is checked based on the output of the CCD 4a. By determining the change in brightness of the insertion area 5, the fingerprint reading unit 10a determines whether or not a finger is detected in the finger insertion area 5 (step S1).

  At this time, if it is determined that a finger has been detected, the first light emitter 3L is caused to emit light under the control of the fingerprint reader 10a (step S2), and the first verification is performed based on the output of the CCD 4a at that time. Fingerprint data Ls is created by the fingerprint reading unit 10a (step S15). Next, the second light emitter 3R emits light under the control of the fingerprint reading unit 10a (step S4), and the second collation fingerprint data Rs is generated by the fingerprint reading unit 10a based on the output of the CCD 4a at that time. It is created (step S16). Next, the created first and second collation fingerprint data Ls and Rs are associated with each other and temporarily stored in the main body memory 18 (step S17), and the user ID 21a is transferred from the fingerprint reading unit 10a to the collation unit 10b. And a verification command are input.

  Next, the first registered fingerprint data Lt associated with the input user ID 21a is acquired from the main body memory 18 (step S18), and an ID request signal is sent from the verification unit 10b to the main body communication unit 16. The user ID 21a is acquired again from the portable terminal 20 (step S19).

  Next, the collation unit 10b determines whether or not the user ID 21a input from the fingerprint reading unit 10a matches the user ID 21a newly acquired from the mobile terminal 20 (step S20). In this case, the fingerprint data request signal is input from the collation unit 10b to the main body communication unit 16, the second registered fingerprint data Rt is acquired from the portable terminal 20 (step S21), and the first and second registered fingerprint data Lt and Rt are temporarily stored in the main body memory 18 (step S22).

  Next, the first and second collation fingerprint data Ls and Rs temporarily stored in the main body memory 18 are synthesized by the collation unit 10b to create the synthesis collation fingerprint data Ds. The combined registered fingerprint data Dt is generated by combining the registered fingerprint data Lt and Rt of 2 (step S23), and the combined verification fingerprint data Ds and the combined registered fingerprint data Dt are verified by the verification unit 10b (step S23). S24). At this time, if it is determined that the combined verification fingerprint data Ds and the combined registered fingerprint data Dt match, a verification success signal is input from the verification unit 10b to the control object 30 (step S25).

  On the other hand, when it is determined that the user ID 21a does not match before the second registered fingerprint data Rt is acquired from the portable terminal 20, it is determined that the combined verification fingerprint data Ds and the combined registered fingerprint data Dt do not match. If it is determined, a verification failure signal is input from the verification unit 10b to the control object 30 (step S26).

  In such a fingerprint sensor unit 1 and fingerprint collation device, the light source unit 3 is arranged on the side of the finger insertion region 5 so that the light to be transmitted passes through the finger in the finger insertion region and passes through the lower opening. Therefore, the influence of the light source unit on the height of the apparatus can be reduced, and the area of light overlapping the position of the nail or finger bone can be narrowed, and the fingerprint sensor unit 1 itself and the fingerprint sensor unit 1 are applied. Thus, the fingerprint collation apparatus can be further miniaturized and fingerprint data having a sufficient amount of data for fingerprint collation can be created more reliably.

  Further, the first and second light emitters 3L and 3R are shifted in opposite directions from the perpendicular bisector of the opening plane 6a of the lower opening 6 when the finger insertion region 5 is viewed from the finger insertion direction. Therefore, fingerprint data on both the left and right sides of the fingerprint portion can be created, and the reliability of the created fingerprint data can be improved.

  Further, in such a fingerprint collation apparatus, the fingerprint reading unit 10a stores the first and second fingerprint data 11L and 11R created when the first and second light emitters 3L and 3R emit light respectively. Since the memory 18 and the portable terminal memory 21 are stored separately, impersonation caused by falsification of registered fingerprint data can be prevented more reliably, and security reliability can be improved.

  Furthermore, an IC card or a mobile phone can be used as the mobile terminal 20, and can be widely adapted to customer needs.

  Further, the first and second light emitters 3L and 3R are arranged so that an overlapping portion 11A is provided in the first and second fingerprint data 11L and 11R, and the matching unit 10b is based on the overlapping portion 11A. Since the first and second collation fingerprint data Ls and Rs are synthesized and the first and second registered fingerprint data Lt and Rt are synthesized, the synthesis process can be easily performed, and the software and the circuit configuration are simplified. In addition, the fingerprint verification time can be shortened.

Embodiment 2. FIG.
The overall configuration of the fingerprint collation device according to the second embodiment of the present invention is the same as that of the fingerprint collation device according to the first embodiment, and will be described with reference to FIG. In the figure, a management terminal 40 is connected to the fingerprint verification apparatus body 15 via a network. In the case where the fingerprint collation device main body 15 is installed for each door on which entry / exit management is performed, the management terminal 40 is a server of a management center that centrally manages the locking status of each door. The management terminal 40 is provided with a management terminal memory 41.

  In the first embodiment, it has been described that the second registered fingerprint data Rt is stored in the mobile terminal memory 21. However, in the second embodiment, the second registered fingerprint data Rt is stored in the management terminal memory 41. Is done. Further, the first registered fingerprint data Lt may be stored in the management terminal memory 41. That is, when the first and second registered fingerprint data Lt and Rt are stored in two memories separately, they are stored separately in any two of the main body memory 18, the portable terminal memory 21, and the management terminal memory 41. You can do it. As described above, the fingerprint collation device of the present invention can cope with various memories and can deal with a wide range of customer needs.

Embodiment 3 FIG.
Since the overall configuration of the fingerprint collation device according to the third embodiment of the present invention is the same as that of the fingerprint collation device according to the first embodiment, it will be described with reference to FIGS. As described above, the first and second light emitters 3L and 3R are arranged so that the angle between their optical axis and the opening plane 6a is 65 degrees, and the first and second fingerprint data. 11L and 11R are arranged so that a sufficient amount of data can be obtained for collating them individually.

  In the first embodiment, the collation unit 10b has been described as performing the collation after combining the first and second collation fingerprint data Ls, Rs and the first and second registered fingerprint data Lt, Rt. In the second embodiment, the matching unit 10b performs the first matching fingerprint data Ls and the first registered fingerprint data Lt, the second matching fingerprint data Rs, and the second registered fingerprint data Rt without performing the synthesis process. Are matched individually.

  In such a fingerprint collation device, the collation unit 10b performs the first collation fingerprint data Ls and the first registration fingerprint data Lt, the second collation fingerprint data Rs, and the second registration fingerprint without performing the synthesis process. Since the data Rt is collated individually, it can be easily grasped that one of the first and second registered fingerprint data Lt and Rt has been tampered with, and maintainability and manageability can be improved.

  In the third embodiment, it has been described that the collation unit 10b does not perform the synthesis process. However, the fingerprint data may be collated individually and the synthesized fingerprint data may be collated. That is, the personal authentication devices of the first and third embodiments can be combined. By doing so, the accuracy of fingerprint collation can be further improved, and the reliability of security can be further improved.

  In the first to third embodiments, the first and second registered fingerprint data Lt and Rt have been described as being stored separately in the main body memory 18, the portable terminal memory 21, and the management terminal memory 41. For the purpose of realizing, it may be stored together in one memory. The collation method in the case of storing the fingerprint data 11L and 11R in one memory may be collated after being synthesized, or may be collated individually. By doing in this way, the process which memorize | stores fingerprint data 11L and 11R in a memory, and the process which acquires fingerprint data 11L and 11R from a memory at the time of collation can be simplified.

  Further, in the first to third embodiments, it has been described that the light source unit 3 includes the first and second light emitters 3L and 3R. However, for the purpose of simplifying the device, the first and second light emitters 3L are used. , 3R may be omitted.

It is sectional drawing of the principal part of the fingerprint collation apparatus by Embodiment 1 of this invention. It is sectional drawing which follows the line AA of FIG. It is explanatory drawing which shows the fingerprint data produced by the control means of FIG. It is a block diagram which shows the whole fingerprint collation apparatus of FIG. It is a flowchart which shows the fingerprint registration operation | movement which the control means of FIG. 4 performs in registration mode. It is a flowchart which shows the fingerprint collation operation | movement which the control means of FIG. 4 performs by collation mode.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Fingerprint sensor unit, 2 Finger support part, 3 Light source part, 3L, 3R 1st and 2nd light emitter, 4 Sensor part, 5 Finger insertion area, 6 Lower opening part, 10 Control means, 10a Fingerprint reading part, 10b Verification unit, 18 Main body side memory, 20 mobile terminal, 21 mobile terminal memory, 40 management terminal, 41 management terminal memory.

Claims (17)

A finger support portion that is provided with a finger insertion area into which a finger is inserted at the time of fingerprint reading and a lower opening to which a fingerprint portion of the finger inserted into the finger insertion area is aligned;
A light source unit disposed on the side of the finger insertion region so that the light to be transmitted passes through the finger in the finger insertion region and passes through the lower opening, and a sensor unit for detecting the light irradiated by the light source unit. A fingerprint sensor unit comprising:   The first light source unit and the second light source unit are arranged to be shifted in opposite directions from the perpendicular bisector of the opening plane of the lower opening when the finger insertion region is viewed from the finger insertion direction. The fingerprint sensor unit according to claim 1, further comprising a light emitter. A finger insertion area where a finger is inserted during fingerprint reading and a lower opening where the fingerprint portion of the finger inserted into the finger insertion area is aligned are provided. A fingerprint sensor unit including a light source unit disposed on a side of the finger insertion region that passes through the finger in the finger insertion region and passes through the lower opening, and a sensor unit that detects light emitted from the light source unit When,
Storage means for storing fingerprint data;
A fingerprint reading unit for controlling the light emission operation of the light source unit and creating fingerprint data based on the output of the sensor unit; and a verification unit for comparing the fingerprint data of the reading control unit and the fingerprint data of the storage unit And a control means including the fingerprint collating device.   The first light source unit and the second light source unit are arranged to be shifted in opposite directions from the perpendicular bisector of the opening plane of the lower opening when the finger insertion region is viewed from the finger insertion direction. 4. The fingerprint collation apparatus according to claim 3, further comprising a light emitter. The fingerprint reading unit creates first fingerprint data when the first light emitter emits light, and creates second fingerprint data when the second light emitter emits light. Storing the first and second fingerprint data in the storage means at the time of registration;
The first and second light emitters are arranged so that overlapping portions are provided in the first and second fingerprint data,
The collation unit synthesizes the first and second fingerprint data of the fingerprint reading unit and the first and second fingerprint data of the storage unit based on the overlapped part at the time of fingerprint collation, The fingerprint collation apparatus according to claim 4, wherein the synthesized fingerprint data is collated. The fingerprint reading unit creates first fingerprint data when the first light emitter emits light, and creates second fingerprint data when the second light emitter emits light. Storing the first and second fingerprint data in the storage means at the time of registration;
The first and second light emitters are arranged to obtain a data amount sufficient to individually collate the first and second fingerprint data,
The collation unit collates the first fingerprint data of the fingerprint reading unit and the first fingerprint data of the storage unit at the time of fingerprint collation, and the second fingerprint data of the fingerprint reading unit and the storage unit 6. The fingerprint collation apparatus according to claim 4, wherein collation is performed with the second fingerprint data. The storage means includes first and second storage units,
The fingerprint reading unit creates first fingerprint data when the first light emitter emits light and creates second fingerprint data when the second light emitter emits light, and registers the fingerprint. 5. The fingerprint collation apparatus according to claim 4, wherein the first and second fingerprint data are stored separately in the first storage unit and the second storage unit. A fingerprint verification apparatus main body including at least the fingerprint sensor unit and the control means;
And at least one of a portable terminal capable of wireless communication with the fingerprint verification device and a management terminal connected to the fingerprint verification device body,
The said 1st and 2nd memory | storage part is any one of the memory of the said fingerprint collation apparatus main body, the memory of the said portable terminal, and the memory of the said management terminal, The memory of Claim 7 characterized by the above-mentioned. Fingerprint verification device.   9. The fingerprint collation apparatus according to claim 8, wherein the portable terminal is an IC card or a cellular phone. The first and second light emitters are arranged so that overlapping portions are provided in the first and second fingerprint data,
The collation unit synthesizes the first and second fingerprint data of the fingerprint reading unit based on the overlapped portion at the time of fingerprint collation, and the first and second fingerprints of the first and second storage units The fingerprint collation apparatus according to any one of claims 7 to 9, wherein the fingerprints are synthesized and collated with the synthesized fingerprint data. The first and second light emitters are arranged to obtain a data amount sufficient to individually collate the first and second fingerprint data,
The collation unit collates the first fingerprint data of the fingerprint reading unit and the first fingerprint data of the first storage unit at the time of fingerprint collation, and the second fingerprint data of the fingerprint reading unit and the first fingerprint data The fingerprint collation apparatus according to any one of claims 7 to 10, wherein collation is performed with the second fingerprint data stored in the second storage unit. A finger insertion area where a finger is inserted during fingerprint reading and a lower opening where the fingerprint portion of the finger inserted into the finger insertion area is aligned, and a finger support section for supporting the finger during fingerprint reading, the finger insertion area A fingerprint sensor unit including a light source unit that irradiates light passing through the finger and passing through the lower opening, and a sensor unit that detects light emitted by the light source unit;
Storage means for storing fingerprint data;
A fingerprint reading unit for controlling the light emission operation of the light source unit and creating fingerprint data based on the output of the sensor unit; and a verification unit for comparing the fingerprint data of the reading control unit and the fingerprint data of the storage unit Control means including,
The light source unit includes first and second light emitters that irradiate light from different directions with respect to the finger in the finger insertion region,
The storage means includes first and second storage units,
The fingerprint reading unit creates first fingerprint data when the first light emitter emits light and creates second fingerprint data when the second light emitter emits light, and registers the fingerprint. Sometimes, the fingerprint collation apparatus stores the first and second fingerprint data separately in the first storage unit and the second storage unit.   The first and second light emitters are arranged on the sides of the finger insertion region such that light to be transmitted passes through the finger in the finger insertion region and passes through the lower opening. The fingerprint collation device according to claim 12. The first and second light emitters are arranged so that overlapping portions are provided in the first and second fingerprint data,
The collation unit synthesizes the first and second fingerprint data of the fingerprint reading unit based on the overlapped portion at the time of fingerprint collation, and the first and second fingerprints of the first and second storage units The fingerprint collation apparatus according to claim 12 or 13, wherein the data is synthesized and the synthesized fingerprint data is collated. The first and second light emitters are arranged to obtain a data amount sufficient to individually collate the first and second fingerprint data,
The collation unit collates the first fingerprint data of the fingerprint reading unit and the first fingerprint data of the first storage unit at the time of fingerprint collation, and the second fingerprint data of the fingerprint reading unit and the first fingerprint data The fingerprint collation apparatus according to claim 12 or 13, wherein collation is performed with the second fingerprint data in the second storage unit. A fingerprint verification apparatus main body including at least the fingerprint sensor unit and the control means;
And at least one of a portable terminal capable of wireless communication with the fingerprint verification device and a management terminal connected to the fingerprint verification device body,
13. The first and second storage units are any two of a memory of the fingerprint collation device body, a memory of the portable terminal, and a memory of the management terminal. Item 16. The fingerprint collation device according to any one of Items 15 to 15.   The fingerprint collation apparatus according to claim 16, wherein the portable terminal is an IC card or a cellular phone.

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