JP2009134421A - Biometric authentication system and biometric authentication method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a biometric authentication system which has excellent recovery property when data are destroyed. <P>SOLUTION: The biometrics authentication system includes: a biometric authentication device 1 equipped with a reading means 8 for reading biological information; a first storage means 9 for storing the biological information; and a personal identification means 12 for performing personal identification by comparing the biological information read by the reading means 8 with the biological information stored in the first storage means; a second storage means 16 for storing the same biological information as the biological information stored in the first storage means 9; a storage detection means 12 for detecting whether or not the biological information is stored in the first storage means 9; and a copying means 12 for, when the biological information is not detected by the storage detection means 12, executing copying processing to copy the biological information stored in the second storage means 16 to the first storage means 9. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a biometric authentication system and a biometric authentication method.

  Conventionally, when registering / deleting biometric information as a biometric authentication device employed in a biometric authentication system, biometric information is registered / deleted if the captured data does not match the data registered in the memory. A device that disables the switch is known (for example, see Patent Document 1).

JP-A-2005-262

  However, in the biometric authentication system including the conventional biometric authentication device, when the stored data is destroyed due to physical damage, unstable supply voltage, or unauthorized access Therefore, it is necessary to newly register biometric information. Especially for physical damage, new equipment must be replaced.

  Therefore, an object of the present invention is to provide a biometric authentication system and a biometric authentication method that are excellent in recoverability when data is lost.

As a means for solving the above problems, the present invention provides:
Biometric authentication system
Reading means for reading biometric information, first storage means for storing biometric information, and an individual who performs personal authentication by comparing the biometric information read by the reading means with the biometric information stored in the first storage means A biometric authentication device comprising authentication means;
Second storage means for storing the same biological information as the biological information stored in the first storage means;
Storage detection means for detecting whether or not biological information is stored in the first storage means;
A copy unit that executes a copy process for copying the biometric information stored in the second storage unit to the first storage unit when biometric information is not detected by the storage detection unit;
It is set as the structure provided with.

  With this configuration, if an unexpected situation occurs, such as the first storage means being replaced or the stored data being destroyed, this is detected by the detection means, and the first storage means is stored in the first storage means. The biological information stored in the second storage means can be automatically copied. Therefore, there is no need to newly register biometric information, and it becomes possible to flexibly cope with unexpected situations.

Further, the present invention provides a means for solving the above-described problems,
Biometric authentication system
Reading means for reading biometric information, first storage means for storing biometric information, and an individual who performs personal authentication by comparing the biometric information read by the reading means with the biometric information stored in the first storage means A biometric authentication device comprising authentication means;
A control unit comprising second storage means for storing the same biological information as the biological information stored in the first storage means;
Have
Replacement detection means for detecting that either one of the biometric authentication device or the control unit is replaced;
Copy means for executing a copy process for copying the biometric information stored in the remaining storage means to the exchanged storage means by detecting that one of the exchanges has been replaced by the exchange detection means When,
Is further provided.

  With this configuration, if either one of the biometric authentication device or the control unit is exchanged, it is detected by the exchange detection means, and the biometric information stored in the storage means left without being exchanged automatically is stored. It can be copied to the exchanged storage means. Therefore, it is possible to save the trouble of re-registering biometric information.

Each of the storage means stores the same identification data,
A determination unit for determining whether or not the identification data stored in each storage unit corresponds;
Preferably, the copying means disables the copying process when the determination means determines that the identification data stored in each storage means does not correspond.

  With this configuration, if the storage means is exchanged illegally, the identification data will be inconsistent and automatic copying of biometric information cannot be performed, and a configuration excellent in theft prevention can be achieved.

Further, the present invention provides a means for solving the above-described problems,
Biometric authentication method
A first storage step for storing biological information in a first storage means;
A second storage step of storing in the second storage means the same biological information as the biological information stored in the first storage means;
A reading step for reading biometric information;
A personal authentication step of performing personal authentication by comparing the biometric information read in the reading step with the biometric information stored in the first storage means;
A detection step of detecting whether or not biological information is stored in the first storage means;
A copy step of copying the biometric information stored in the second storage means to the first storage means if biometric information is not detected by the detection step;
It is executed by each step including

Further, the present invention provides a means for solving the above-described problems,
Biometric authentication method
A first storage step for storing biological information in a first storage means;
A second storage step of storing in the second storage means the same biological information as the biological information stored in the first storage means;
A reading step for reading biometric information;
A personal authentication step of performing personal authentication by comparing the biometric information read in the reading step with the biometric information stored in the first storage means;
An exchange detection step for detecting whether one of the first storage means or the second storage means has been exchanged;
A copy step for copying the biometric information stored in the remaining storage means to the replaced storage means by detecting that one of the storage means has been replaced in the replacement detection step;
It is executed by each step including

Each of the storage means stores the same identification data,
Before the copying step, execute a determination step for determining whether or not the identification data stored in each storage means corresponds.
If it is determined in the determination step that the identification data stored in each storage means does not correspond, it is preferable that the copying step be disabled.

  According to the present invention, even if the biometric information stored in the storage means is lost, the biometric information stored in the other storage means can be automatically copied. It becomes possible to set it as the structure excellent in property.

  Embodiments according to the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 shows a biometric authentication system according to this embodiment. This biometric authentication system is employed in a vehicle and includes a biometric authentication device 1 and a smart entry control unit 2 (hereinafter, the control unit is abbreviated as C / U). The smart entry C / U2 is connected to a door open / close switch 3 (door open / close SW), a door lock C / U4, an electric steering lock 5 (electric STL), an engine C / U6, a start switch 7 (start SW), and the like. ing.

  As shown in FIG. 2, the biometric authentication device 1 includes an imaging unit 8 (reading unit), a first storage unit 9 (first storage unit), a first power supply unit 10, a first communication unit 11, and a first unit. A control unit 12 (personal authentication means) is provided.

  The imaging unit 8 includes an infrared irradiation unit 13 and a camera unit 14. The infrared irradiation unit 13 includes a plurality of LEDs for irradiating infrared rays, and these LEDs are irradiated with near infrared rays so that a finger vein pattern can be read by the camera unit 14. The camera unit 14 includes a CCD (Charge Coupled Device) camera, a CMOS (Complementary Metal-Oxide Semiconductor) camera, and the like, and reads a vein pattern from a finger irradiated with near infrared rays.

  The first storage unit 9 stores biometric authentication information (here, finger vein pattern) of a user permitted to use the vehicle and ID (identification) data in association with each other. The first storage unit 9 stores identification data unique to the biometric authentication device 1 in addition to a control program for executing an authentication process described later. For the identification data, for example, when the biometric authentication device 1 and the smart entry C / U 2 are connected for the first time, the device number set at random using a random number table or the like can be used. At the same time, the identification data corresponding to the second storage unit 16 of the smart entry C / U2 (to be described later) is stored (in this case, the same data) to check whether both devices are compatible. Used. The first power supply unit 10 supplies power to the imaging unit 8, the first storage unit 9, the first communication unit 11, and the first control unit 12.

  The 1st communication part 11 is for performing transmission / reception of data between smart entry C / U2, and can employ | adopt both a wire communication and a radio | wireless. Here, the connectors are wired. The first communication unit 11 transmits the result of the personal authentication process performed by the first control unit 12 to the smart entry C / U2.

  The first control unit 12 compares the biometric authentication information captured by the camera unit 14 of the imaging unit 8 with the biometric authentication information stored in the first storage unit 9 to thereby perform biometric authentication as described later. Execute the process. The vein pattern is digitized by image processing and compared with biometric information registered in the storage unit (also digitized) to determine whether or not the vein pattern is a registered person.

  The digitization of the vein pattern is performed as follows. That is, near-infrared rays applied to the finger are easily absorbed by reduced hemoglobin flowing through veins in the blood after carrying oxygen. For this reason, the image is dark for the veins and bright for the portions other than the veins. Therefore, the brightness at each part is converted into numerical data of “0” or “1” by the binary system.

  The smart entry C / U2 (control unit) includes an input / output unit 15, a second storage unit 16 (second storage unit), a second power supply unit 17, a second communication unit 18, and a second control unit 19. .

  The input / output unit 15 receives output signals from the door opening / closing SW3, door lock C / U4, electric STL5, engine C / U6, start SW7, remote control 20 (smart entry device), registration button 21, deletion button 22, etc. Conversely, a control signal is transmitted to each C / U to perform a predetermined operation.

  The door opening / closing SW3 outputs an on / off signal when the door is opened / closed. The door lock C / U 4 drives and controls an actuator of a door lock device provided on the door of the vehicle to lock and unlock the door. The electric STL 5 prevents the vehicle from being stolen by locking and unlocking the steering shaft. Here, the internal motor is driven and controlled based on the control signal from the smart entry C / U2, and the steering shaft is locked / unlocked. The engine C / U 6 controls engine start, stop, and operation. The start SW 7 is a switch for starting the engine, and is installed in the vicinity of the steering wheel in the vehicle.

  The remote controller 20 is used for locking and unlocking a vehicle door. That is, when the user gets into the vehicle and touches the door handle is detected by a touch sensor (not shown) provided on the door handle, and an ON signal is output from the touch sensor, a request signal is sent from the smart entry C / U2. Sent. The remote controller 20 receives this request signal and transmits an identification signal registered in advance. The smart entry C / U2 outputs an unlock instruction signal to the door lock C / U4 based on this identification signal, and the door is unlocked.

  The registration button 21 is used when registering biometric information. When the registration button 21 is operated, a registration mode signal is transmitted from the smart entry C / U 2 to the biometric authentication device 1. If the finger vein pattern of the finger is read by the camera unit 14 of the imaging unit 8, the vein pattern can be stored in the first storage unit 9 as biological information. The delete button 22 is used when deleting biometric information.

  The second storage unit 16 stores the above-described identification data in addition to the ID data of the user permitted to use the vehicle and the biological information thereof.

  The second power supply unit 17 supplies power to the input / output unit 15, the second storage unit 16, the second communication unit 18, and the second control unit 19.

  The second communication unit 18 transmits and receives data to and from the first communication unit 11 of the biometric authentication device 1. Here, a connector is used. From the second communication unit 18, a power-on signal, a test mode start signal, and the like are transmitted to the first communication unit 11, and in addition to ID data and biological information, a verification result and the like are received.

  When the biometric authentication device 1 determines that the biometric authentication result is stored biometric information, the second control unit 19 stores ID data, which is identification information associated with the biometric information, in the second storage unit 16. The door lock C / U4, the electric STL5, and the engine C / U6 are driven and controlled based on input signals from the door opening / closing SW3, the start SW, and the like.

  Next, the operation of the biometric authentication system will be described.

(Registration mode)
In the initial state, since no data is stored in each storage unit, the registration mode is executed according to the flowchart of FIG.

  That is, if the registration button 21 is operated (step S1), the biometric information registration process is started, and it is determined whether or not master authentication has been performed in the normal mode described later (step S2). In master authentication, the biometric information read by the imaging unit 8 is compared with the biometric information stored as the master in the first storage unit 9, and if they match, the person set as the master has been authenticated. It is what. Whether or not the master authentication has been performed is determined by confirming the authenticated ID data stored in the second storage unit 16 in the normal mode. That is, not everyone can register biometric information, and only a person set as a master can perform registration. Note that biometric information serving as a master can be registered only at a dedicated terminal at a dealer, for example. Thereby, even if the registration button 21 is operated, if master authentication is not performed (step S2: NO), a warning process is executed so that biometric authentication cannot be registered (step S3). The warning process may be performed by voice, buzzer, lamp lighting, or the like. Moreover, as long as it is equipped with apparatuses, such as a radio | wireless, it can also be comprised so that it may contact other places away from the vehicle. If the master authentication is performed (step S2: YES), a registration mode signal is transmitted from the smart entry C / U2 to the biometric authentication device 1 (step S4).

  The biometric authentication device 1 starts registration processing based on the registration mode signal transmitted from the smart entry C / U2 (step S11). That is, when biometric information (vein pattern) is read from the user's finger by the imaging unit 8 (step S12), the read biometric information is binary / encrypted (step S13). Also, ID data is created, and the biometric information and the ID data are associated with each other (step S14). And biometric information and ID data are memorize | stored in the 1st memory | storage part 9 (step S15). Subsequently, the registered biometric information and the ID data associated therewith are transmitted to the smart entry C / U2 in addition to the registration end signal indicating that the registration is completed (step S16). If the next biometric information is input (step S17), the process returns to step S13 and the same process is repeated.

  The smart entry C / U2 receives the transmission data from the biometric authentication device 1 (step S5) and stores it in the second storage unit 16 (step S6). Here, it waits for 30 seconds (step S7), and during that time, the standby state is maintained (step S8). If 30 seconds have elapsed, a registration end signal is transmitted to the biometric authentication device 1 (step S9).

  The biometric authentication device 1 determines whether or not to end the registration process based on whether or not a registration end signal is received from the smart entry C / U 2 (step S18). Is maintained (step S19), and if a registration end signal is received, a series of biometric information registration processing (registration mode) is terminated.

(General mode)
The smart entry C / U2 always initializes the data after startup as shown in the flowchart of FIG. 4 (step S21) and executes the following processing every 10 msec (step S22).

  That is, the input / output unit 15 receives output signals from the door lock C / U4, the electric STL5, the engine C / U6, the start SW7, and the like (step S23). Based on the received signal, the mode determination / transition unit executes the corresponding mode (step S24), and the input / output unit 15 applies the corresponding device (door lock C / U4, electric STL5, engine C / U6, etc.). A control signal is output to (step S25). For example, if a signal indicating that the door has changed from an open state to a closed state is input from the door opening / closing SW 3, the normal mode (mode for starting the engine) is executed, and a control signal is sent to the engine C / U 6. Output.

(Normal mode)
Processing (normal mode) when the user gets on the vehicle and starts the engine will be described with reference to the flowcharts of FIGS. 5 and 6.

  In the smart entry C / U2, if a signal indicating that the door has changed from the open state to the closed state is input from the door opening / closing SW3 (step S41), the biometric authentication device 1 is turned on. A power-on signal is output (step S42), and an authentication mode activation signal is output (step S43).

  The biometric authentication device 1 initializes data based on the power-on signal from the smart entry C / U2 (step S61), and starts an authentication mode process if an authentication mode activation signal is input from the smart entry C / U. (Step S62).

  In the authentication mode, first, finger detection is performed as to whether or not a finger can be imaged by the camera unit 14 of the imaging unit 8 (step S64). If a finger is detected (step S65: YES), imaging by the camera unit 14 is performed (step S66). If no finger is detected (step S67: NO), finger detection is continued for 30 seconds (step S64). If it is still not detected, the authentication mode is terminated.

  The vein pattern imaged by the camera unit 14 is subjected to image processing by the first control unit 12 (step S68). In the image processing, as described above, each part (for each segment) is converted into numerical data “0” or “1” based on the brightness of the captured vein pattern. And based on the obtained result, it collates with the biometric authentication information memorize | stored in the 1st memory | storage part 9 (step S69). The result obtained by the collation (collation result) and the ID data associated with the corresponding biometric authentication information are transmitted to the smart entry C / U2 (step S70).

  In the smart entry C / U2, it is determined whether or not the collation result transmitted from the biometric authentication device 1 is appropriate, that is, whether or not the captured finger vein pattern is stored in the first storage unit 9. This is performed (step S44). If the collation result is not appropriate (if it is not stored in the first storage unit 9), after the ID data is confirmed, the authenticated ID data is stored in the second storage unit 16 (step S45), and the ID data In response to this, a control signal is output to each device such as a mirror, a seat, and a steering (step S46). Further, when the start SW 7 is turned on (step S47), an STL release signal is transmitted to the electric STL 5 (step S48).

  In the electric STL5, the steering lock state is released based on the STL release signal, and the unlocked state is set (step S81). Then, an unlock signal is transmitted to the smart entry C / U2 and the engine C / U6 (step S82).

  In smart entry C / U2, the unlock signal from electric STL5 is confirmed (step S49), and ID data is transmitted to engine C / U6 (step S50).

  Engine C / U6 confirms the unlock signal from electric STL5 (step S91), and based on this unlock signal and the ID data from smart entry C / U2, whether the steering is unlocked or not. It is determined whether the ID data is appropriate (step S92). If either condition is not satisfied, the normal mode is terminated, and if both conditions are satisfied, the engine is started (step S93). Then, an engine start signal is transmitted to the smart entry C / U2 (step S94).

  In the smart entry C / U2, the engine start signal transmitted from the engine C / U6 is confirmed (step S51), and the process in the series of normal modes is terminated.

(Copy mode)
By the way, when the first storage unit 9 is in the initial state, such as when the biometric authentication device 1 is replaced, or when the stored data is cleared, copying is performed as shown in the flowcharts of FIGS. Run the mode.

  That is, when the transfer button is operated (step S101), a copy mode signal is transmitted from the smart entry C / U2 to the biometric authentication device 1 (step S102).

  The biometric authentication device 1 starts the copy mode by receiving the copy mode signal (step S121), and determines whether identification data (here, a device number) is stored in the first storage unit 9 (step S121). Step S122). If the identification data is not stored (step S122: NO), a copy request signal is transmitted to the smart entry C / U2 (step S123). On the other hand, if the identification data is stored (step S122: YES), the identification data is transmitted to the smart entry C / U2 (step S125).

  The smart entry C / U2 receives the copy request signal from the biometric authentication device 1 to determine whether the requested identification data is stored in the second storage unit 16 (step S103). If there is identification data, it is determined whether biometric information is stored (step S104). When the identification data is not stored, or when the identification data is stored but the biometric information is not stored, a warning process is executed (step S105), and a buzzer or the like is notified. If any data is stored, identification data, biometric information and ID data are transmitted to the biometric authentication device 1 (step S106).

  The biometric authentication device 1 stores the identification data, biometric information, and ID data transmitted from the smart entry C / U2 in the first storage unit 9 (step S124). As a result, the same identification data as the smart entry C / U2 is also stored on the biometric authentication device 1 side, and the identification data of both devices match.

  Further, the smart entry C / U2 receives the identification data from the biometric authentication device 1 to determine whether there is identification data registered in the second storage unit 16 (step S107). If there is no identification data registered in the second storage unit 16, the identification data received from the biometric authentication device 1 is stored in the second storage unit 16 and new identification data is set (step S108). As a result, the same identification data as the biometric authentication device 1 is also stored on the smart entry C / U2 side, and the identification data of both devices match. If there is identification data registered in the second storage unit 16, it is determined whether this identification data corresponds to the received identification data (step S109). Here, it is determined whether or not the identification data match. If not, a buzzer or the like is sounded to warn (step S110). If it is compatible, a copy request signal is transmitted to the biometric authentication device 1 (step S111).

  The biometric authentication device 1 transmits all the biometric information and ID data stored in the first storage unit 9 to the smart entry C / U2 based on the copy request signal (step S126).

  In the smart entry C / U2, it is determined whether or not each of the biometric information and the ID data transmitted from the biometric authentication device 1 matches that stored in the second storage unit 16 (step S112). If they match, the copy mode ends, and if they do not match, the difference between the received biometric information and ID data and the biometric information and ID data stored in the second storage unit 16 is confirmed (step S113). If there is a discrepancy between the two, it is considered that the data that should have been stored is lost for some reason, and is stored again in the second storage unit 16 (step S114).

  The biometric authentication device 1 also stores the difference again based on the result of the difference confirmation at the smart entry C / U2 (step S127).

  For example, data (A1, B1), (A2, B2), (A3, B3) (A is biometric information and B is ID data) is stored in the second storage unit 16 of the smart entry C / U. When (A2, B2), (A3, B3), (A4, B4) are stored in the first storage unit 9 of the biometric authentication device 1, (A4, B4) is stored in the second storage unit 16. Since the difference becomes (A1, B1) in the first storage unit 9, the stored contents in both the storage units 16 and 9 are matched by re-storing them.

  As described above, in the copy mode, when the identification data is not registered in the first storage unit 9 of the biometric authentication device 1, the biometric authentication device 1 including the first storage unit 9 has been replaced, or the first storage It is determined that the data in the unit 9 has been destroyed, or the biological information is not stored in the first storage unit 9, and the biological information and ID data stored in the second storage unit 16 are copied to the first storage unit 9 To do. With this configuration, it is not necessary to store biometric information again, and troublesome biometric registration can be saved. In this embodiment, the state of the biometric authentication device 1 is determined based on the presence / absence of identification data, but may be determined by another method. For example, it is confirmed whether or not biometric information is stored in the first storage unit 9. If biometric information is not registered in the first storage unit 9, the biometric information and ID stored in the second storage unit 16 are stored. Data may be copied to the first storage unit 9.

  In the copy mode, when the identification data is not registered in the second storage unit 16 of the smart entry C / U2, the smart entry C / U2 including the second storage unit 16 has been replaced, or the second storage unit 16 It is determined that the data in the unit 16 has been destroyed, or the biological information is not stored in the second storage unit 16, and the biological information and ID data stored in the first storage unit 9 are stored in the second storage unit 16. Duplicate. With this configuration, even when the smart entry C / U2 is exchanged, it is not necessary to re-register biometric information, and troublesome biometric information registration can be saved.

  Further, in the copy mode, the identifications stored in the first storage unit 9 of the biometric authentication device 1 and the second storage unit 16 of the smart entry C / U 2 before starting to copy the biometric information and the ID data, respectively. It is determined whether or not the data match. Therefore, for example, a device that has registered the registration information of the thief using the copy mode is replaced with a device provided in the vehicle, and the theft is attempted to obtain unauthorized authentication by copying biometric information to the other device. On the other hand, if the identification data of the replaced device and the identification data of the other device do not match, the biometric information cannot be copied, and the biometrics registered in the illegally replaced device It is possible to prevent information from being copied to the other device and prevent theft from occurring. Although not described in the present embodiment, the identification data stored in the storage units 9 and 16 of the biometric authentication device 1 and the smart entry C / U 2 before performing the personal authentication process in the normal mode. If the identification data do not correspond to each other, the biometric information and the ID data stored in the first storage unit 9 of the biometric authentication device 1 may be deleted. According to this configuration, even if the biometric authentication device 1 is replaced with another biometric authentication device 1 in which the biometric information of the theft is registered for the purpose of fraud authentication, the identification data of each device does not match. Information is deleted. As a result, unauthorized authentication of the theft can be prevented. Also, it is confirmed whether or not all the biometric information and ID data stored in each storage unit 8 and 16 are matched, and if they do not match, they are automatically added. An appropriate storage state can be maintained, and it is possible to prevent the occurrence of problems such as authentication failure.

  In the above-described embodiment, the same identification data is stored in the first storage unit 9 of the biometric authentication device 1 and the second storage unit 16 of the smart entry C / U2, but for example, as follows: It is also possible to do. That is, when the identification data is stored for the first time, the identification data is assumed to be one that can identify the smart entry C / U2 for the biometric authentication device 1 and one that can identify the biometric authentication device 1 for the smart entry C / U2. Also good.

  Further, the biometric authentication system and the biometric authentication method of the present invention are not limited to the configuration of the above embodiment, and various modifications can be made. For example, in the embodiment, each process is executed using the two control units 12 and 19, but each process may be executed by one control unit. In this embodiment, the copy mode is started by operating the transfer button. However, for example, the copy mode may be executed every time the normal mode is executed. In this case, the operation of the transfer button becomes unnecessary.

It is a block diagram which shows the example which employ | adopted the biometrics system which concerns on this embodiment for the vehicle. It is a block diagram which shows the detail of the smart entry control unit and biometrics authentication apparatus of FIG. It is a flowchart which shows the processing content of the registration mode in the biometric authentication system which concerns on this embodiment. It is a flowchart which shows the processing content of the general mode in the smart entry C / U of FIG. It is a flowchart which shows the processing content of the normal mode in the biometric authentication system which concerns on this embodiment. It is a flowchart which shows the processing content of the normal mode in the biometric authentication system which concerns on this embodiment. It is a flowchart which shows the processing content of the copy mode in the biometric authentication system which concerns on this embodiment. It is a flowchart which shows the processing content of the copy mode in the biometric authentication system which concerns on this embodiment.

Explanation of symbols

1 ... Biometric authentication device 2 ... Smart entry C / U (control unit)
3 ... Door open / close switch
4 ... Door lock C / U
5 ... Electric STL
6 ... Engine C / U
7 ... Start SW
8 ... Imaging unit (reading means)
9 ... 1st memory | storage part (1st memory | storage means 9
DESCRIPTION OF SYMBOLS 10 ... 1st power supply part 11 ... 1st communication part 12 ... 1st control part (Personal authentication means, memory | storage detection means, copying means, exchange detection means)
DESCRIPTION OF SYMBOLS 13 ... Infrared irradiation part 14 ... Camera part 15 ... Input / output part 16 ... 2nd memory | storage part (2nd memory | storage means)
17 ... 2nd power supply part 18 ... 2nd communication part 19 ... 2nd control part (exchange detection means)
20 ... Remote control 21 ... Register button 22 ... Delete button

Claims (6)

Reading means for reading biometric information, first storage means for storing biometric information, and an individual who performs personal authentication by comparing the biometric information read by the reading means with the biometric information stored in the first storage means A biometric authentication device comprising authentication means;
Second storage means for storing the same biological information as the biological information stored in the first storage means;
Storage detection means for detecting whether or not biological information is stored in the first storage means;
A copy unit that executes a copy process for copying the biometric information stored in the second storage unit to the first storage unit when biometric information is not detected by the storage detection unit;
A biometric authentication system comprising: Reading means for reading biometric information, first storage means for storing biometric information, and an individual who performs personal authentication by comparing the biometric information read by the reading means with the biometric information stored in the first storage means A biometric authentication device comprising authentication means;
A control unit comprising second storage means for storing the same biological information as the biological information stored in the first storage means;
Have
Replacement detection means for detecting that either one of the biometric authentication device or the control unit is replaced;
Copying means for executing a copying process for copying the biometric information stored in the remaining storage means to the exchanged storage means by detecting that one of the exchanges has been replaced by the replacement detection means When,
A biometric authentication system further comprising: Each of the storage means stores identification data,
A determination unit for determining whether or not the identification data stored in each storage unit corresponds;
3. The living body according to claim 1, wherein the copying unit disables the copying process when the determination unit determines that the identification data stored in each storage unit does not correspond. 4. Authentication system. A first storage step for storing biological information in a first storage means;
A second storage step of storing in the second storage means the same biological information as the biological information stored in the first storage means;
A reading step for reading biometric information;
A personal authentication step of performing personal authentication by comparing the biometric information read in the reading step with the biometric information stored in the first storage means;
A detection step of detecting whether or not biological information is stored in the first storage means;
A copy step of copying the biometric information stored in the second storage means to the first storage means if biometric information is not detected by the detection step;
A biometric authentication method comprising: A first storage step for storing biological information in a first storage means;
A second storage step of storing in the second storage means the same biological information as the biological information stored in the first storage means;
A reading step for reading biometric information;
A personal authentication step of performing personal authentication by comparing the biometric information read in the reading step with the biometric information stored in the first storage means;
An exchange detection step for detecting whether one of the first storage means or the second storage means has been exchanged;
A copy step for copying the biometric information stored in the remaining storage means to the replaced storage means by detecting that one of the storage means has been replaced in the replacement detection step;
A biometric authentication method comprising: Each of the storage means stores the same identification data,
Before the copying step, execute a determination step for determining whether or not the identification data stored in each storage means corresponds.
6. The biometric authentication method according to claim 4 or 5, wherein when the determination step determines that the identification data stored in each storage means does not correspond, the copying step cannot be executed.

Images