JP2019204391A - Biological information authentication device, biological information registration device, and biological information authentication system - Google Patents

Abstract

To provide a biological information authentication device, a biological information registration device, and a biological information authentication system that can prevent erroneous authentication caused by smallness in the amount of registered biological information used for authentication.SOLUTION: A biological information authentication device 1 is generally configured by being mounted on a vehicle and comprising: a first communication unit 12 that acquires registered biological information 35 from a biological information registration device 3 that reads biological information on a registrant in contact with a second reading surface 300 other than the vehicle and generates the registered biological information 35; a first biological information sensor 10 that reads biological information 15 on a user in contact with a first reading surface 100 having a smaller area than that of the second reading surface 300; and a control unit 14 that performs authentication as to whether the user is the registrant on the basis of the acquired registered biological information 35 and the biological information 15 read by the first biological information sensor 10.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a biometric information authentication device, a biometric information registration device, and a biometric information authentication system.

  As a conventional technique, there is known a fingerprint collation apparatus that reads an input fingerprint from a finger pressed against a fingerprint reading sensor and collates the input fingerprint with a registered fingerprint registered in advance (see, for example, Patent Document 1). .

  This fingerprint collation device further determines and registers the registered fingerprint of the registered person based on the pressure switch that is turned on when the finger pressing on the fingerprint reading sensor exceeds a predetermined value and the input fingerprint of the registered person. And a registration processing unit. Further, when registering a registered fingerprint, the fingerprint verification device needs to press the finger against the fingerprint reading sensor a plurality of times.

JP 2002-298127 A

  For example, when the arrangement space is limited as in a vehicle, the conventional fingerprint collation device has to reduce the area of the surface against which the finger is pressed, and the registered biometric information for authentication such as the read registered fingerprint. There is a problem that the amount of information is small and the possibility of erroneous authentication increases.

  Accordingly, an object of the present invention is to provide a biometric information authentication apparatus, a biometric information registration apparatus, and a biometric information authentication system that can suppress erroneous authentication due to a small amount of registered biometric information used for authentication. is there.

  According to one aspect of the present invention, an acquisition unit that acquires registered biometric information from a biometric information registration device that reads biometric information of a registrant who is in contact with the second reading surface other than the vehicle and generates registered biometric information; Based on the first biometric information sensor that reads biometric information of the user who contacts the first read surface having an area smaller than the read surface, the acquired registered biometric information, and the biometric information read by the first biometric information sensor. An authentication unit that authenticates whether or not the user is a registrant, and a biometric information authentication device mounted on a vehicle.

  Another aspect of the present invention is a second biometric information sensor that reads biometric information of a registrant in contact with a second reading surface, and registered biometric information that generates registered biometric information based on the read biometric information of the registrant. Registered biometric information in a generating unit and a biometric information authentication device that is mounted on a vehicle and that reads biometric information of a user who has touched a first reading surface that is smaller than the second reading surface and performs authentication with the registered biometric information An output unit that outputs registered biometric information generated by a generation unit, and a biometric information registration device that is arranged other than a vehicle is provided.

  Another aspect of the present invention is a biometric information registration device that reads biometric information of a registrant who contacts the second reading surface and generates registered biometric information used for authentication, and an electromagnetically connected biometric information registration Biometric information authentication for authenticating whether or not the user is a registrant based on the registered biometric information acquired from the apparatus and the biometric information of the user read through the first reading surface smaller than the second reading surface. And a biometric information authentication system comprising the device.

  According to the present invention, it is possible to suppress erroneous authentication due to a small amount of registered biometric information used for authentication.

FIG. 1A is a schematic diagram illustrating an example of an arrangement of the biometric information authentication apparatus according to the first embodiment, and FIG. 1B is an example of a block diagram of the biometric information authentication apparatus. FIG. 2A is a schematic diagram illustrating an example of a first read image generated by reading by the biometric information authentication apparatus according to the first embodiment, and FIG. 2B is a biometric information registration apparatus. It is the schematic which shows an example of the 2nd reading image produced | generated by reading. FIG. 3 is a flowchart showing an example of the operation of the biometric information authentication apparatus according to the first embodiment. FIG. 4A is a schematic diagram illustrating an example of a biometric information registration apparatus according to the second embodiment, and FIG. 4B is an example of a block diagram of the biometric information registration apparatus. FIG. 5 is a flowchart showing an example of the operation of the biometric information registration apparatus according to the second embodiment. FIG. 6A is a schematic diagram showing an example of a biometric authentication system according to the third embodiment, and FIG. 6B is a block diagram showing an example of a communication system for a vehicle. FIG. 7 is a sequence chart showing an example of the operation of the biometric authentication system according to the third embodiment.

(Summary of embodiment)
The biometric information authentication device according to the embodiment includes an acquisition unit that acquires registered biometric information from a biometric information registration device that reads biometric information of a registrant who contacts the second reading surface other than the vehicle and generates registered biometric information; The first biological information sensor for reading the biological information of the user who contacts the first reading surface having an area smaller than the second reading surface, the acquired registered biological information, and the biological information read by the first biological information sensor And an authentication unit that authenticates whether or not the user is a registrant based on the above and is mounted on a vehicle and schematically configured.

  Since this biometric information authentication device has a larger reading surface than the biometric information authentication device, that is, the registered biometric information is generated by the biometric information registration device that has a large amount of information that can be acquired at one time, the registered biometric information generated by the smaller reading surface Compared to the case where information is used for authentication, the amount of information of registered biometric information is greater than the biometric information to be authenticated, and erroneous authentication due to the small amount of information of registered biometric information used for authentication can be suppressed.

[First embodiment]
(Overview of biometric information authentication device 1)
FIG. 1A is a schematic diagram illustrating an example of an arrangement of the biometric information authentication apparatus according to the first embodiment, and FIG. 1B is an example of a block diagram of the biometric information authentication apparatus. FIG. 2A is a schematic diagram illustrating an example of a first read image generated by reading by the biometric information authentication apparatus according to the first embodiment, and FIG. 2B is a biometric information registration apparatus. It is the schematic which shows an example of the 2nd reading image produced | generated by reading. The first read image S ₁ of FIG. 2 (a), x ₁ y ₁ coordinate system is set at the upper left of the paper as the origin. The second read image S ₃ in FIG. 2 (b), x ₂ y ₂ coordinate system to the plane upper left origin is set. 2 (a) and magnitude of the first read image S ₁ and the second read image S ₃ shown in FIG. 2 (b) is as shown.

  Note that, in each drawing according to the embodiment described below, the ratio between figures may be different from the actual ratio. Further, in FIGS. 1B, 4B, 6A, 6B, and 7, the flow of main signals and information is indicated by arrows.

  The biometric information authentication device 1 is configured to authenticate the registered biometric information 35 registered in advance and the read biometric information 15, for example, as shown in FIGS. 1 (a) to 2 (b). Has been. The biometric information authentication device 1 is configured to acquire the registered biometric information 35 from the outside without generating the registered biometric information 35. That is, the biometric information authentication device 1 performs only authentication. The biometric information 15 to be read in this embodiment is, for example, a fingerprint of an operation finger.

  Specifically, the biometric information authentication device 1 acquires the registered biometric information 35 from a biometric information registration device that reads the biometric information of a registrant who contacts the second reading surface other than the vehicle and generates the registered biometric information 35. The first communication unit 12 as an acquisition unit, the first biological information sensor 10 that reads the biological information 15 of the user who contacts the first reading surface 100 having a smaller area than the second reading surface, and the acquired registration A control unit 14 serving as an authentication unit that authenticates whether or not the user is a registrant based on the biological information 35 and the biological information 15 read by the first biological information sensor 10, and is mounted on a vehicle. It is roughly structured.

  The biometric information registration device is, for example, the biometric information registration device 3 shown in FIGS. 4A and 4B described later. The biometric information authentication device 1 is configured to communicate with the biometric information registration device 3 via the first communication unit 12 and acquire the registered biometric information 35. The biometric information registration device 3 is an electronic device that is not an in-vehicle device such as a computer or a smartphone owned by a vehicle store or a user, for example.

  In addition, the first reading surface 100 of the biometric authentication device 1 of the present embodiment is exposed on the operation surface 62 of a switch (start switch device 6) mounted on the vehicle, for example, as shown in FIG. Are arranged to be. In addition, arrangement | positioning of the biometric information authentication apparatus 1 is not limited to the start switch apparatus 6, You may arrange | position to another switch.

  The start switch device 6 is a push switch for instructing start and stop of a vehicle drive device. For example, when the user carries a portable device (electronic key) registered in the vehicle and approaches the vehicle, ID authentication is performed between the portable device and the vehicle. When authentication is established, the user can unlock the vehicle door and get into the vehicle. At this time, since the biometric information authentication apparatus 1 authenticates the user's biometric information 15 following the ID authentication, power is supplied and the biometric information authentication apparatus 1 enters a standby state.

  For example, when the user performs a push operation on the operation surface 62 and the user is authenticated as a registrant, the start switch device 6 instructs the start of the vehicle drive device.

Specifically, when the drive device is an internal combustion engine (engine), the engine is started by a push operation performed in a state where the operation conditions of the shift device and the brake device are satisfied. When the driving device is a motor, preparation for starting to supply current to the motor is performed by a push operation performed in a state where the above operating conditions are satisfied. Further, when the drive device is a hybrid of an engine and a motor, start-up or start-up preparation is performed corresponding to the drive device prioritized at start-up by a push operation performed in a state where the above operating conditions are satisfied.
Is done.

  The start switch device 6 includes, for example, a cylindrical main body 60 and an operation button 61 inserted into the opening 63 of the main body 60. The first reading surface 100 is exposed at the center of the operation surface 62 of the operation button 61.

  The start switch device 6 is disposed on, for example, a vehicle steering, a panel near the steering, a floor console positioned between a driver seat and a passenger seat.

Here biometric information authentication device 1, for example, if the authentication of the biological information 15 is satisfied, and outputs the in-vehicle device authentication is electromagnetically connected authentication information S ₂ indicating that satisfied. The vehicle unit executes, for example, setting the user authentication is successful based on the authentication information S ₂ is registered. For example, when the in-vehicle device is a seat driving device, the seat is driven to the seat position registered by the user. For example, when the vehicle-mounted device is an air conditioner, settings such as a set temperature and an air volume registered by the user are performed. Further, for example, when the in-vehicle device is a mirror driving device, the mirror is driven to a position registered by the user. The electromagnetic connection is, for example, a connection using at least one of a connection via a conductor, a connection via light which is a kind of electromagnetic wave, and a connection via a radio wave which is a kind of electromagnetic wave.

(Configuration of the first biological information sensor 10)
As an example, the first biological information sensor 10 is a capacitive sensor. For example, as shown in FIG. 1A, the first biological information sensor 10 is configured such that when operating the operation button 61 of the start switch device 6, the fingerprint from the operation finger 9 that is in contact with the first reading surface 100. That is, it is configured to read the biological information 15.

  As a modification, the first biological information sensor 10 may be, for example, a sensor configured to read a fingerprint such as a pressure-sensitive type or a thermal type. The first biological information sensor 10 may be, for example, a sensor configured to read a palm print of a palm depending on a place where the first biological information sensor 10 is arranged. Further, the first biological information sensor 10 may be configured to read, for example, an operating finger or a palm vein as the biological information 15. For example, reading of the vein is performed using a sensor configured to read the vein pattern based on the reflection of the irradiated near infrared rays. And the 1st biological information sensor 10 may be a sensor which combined these, for example.

  The first biological information sensor 10 includes, for example, a plurality of detection electrodes arranged in a matrix form below the first reading surface 100. As an example, the plurality of detection electrodes are formed from tens of thousands to hundreds of thousands, and are arranged at intervals of several μm to several tens of μm.

First biological information sensor 10 is, for example, when the X ₁ axis direction and row, reading the capacitance of the sense electrodes arranged in rows, followed by repeatedly reading the capacitance of the sense electrodes instead of rows And all the detection electrodes are scanned. As an example, the scanning period is about 100 ms.

First biological information sensor 10 outputs, for example, a first read image S ₁ is formed on the basis of a plurality of capacitive read by scanning the control unit 14. The first read image S ₁ is formed, for example, based on the capacitance of one period.

Specifically, the first biological information sensor 10 divides, for example, a capacitance greater than or equal to a predetermined threshold value into “1” and a capacitance lower than the threshold value as “0” and detects the capacitance. generating a first read image S ₁ in association with the position of the electrode.

The first read image S ₁ shown in FIG. 2 (a), as an example, the black position detection electrodes "1" described above, and white the position of the detection electrodes of "0". The circles in the figure are added to show a part of feature points 5 described later.

The position where the capacitance is high is the position of the crest of the fingerprint and the distance to the detection electrode is short, so the capacitance is high. The low position is the position of the valley of the fingerprint, the distance to the detection electrode is long, and the capacitance is low. Thus black high positional capacitances, when the low position is white, as an example, the first read image S ₁ as shown in FIG. 2 (a) is obtained.

The first read image _{S 1} is similar in shape to the first reading surface _{100, x} 1 _{y 1} coordinate system corresponding to X 1 _{Y 1} coordinate system is set. Then the biometric information 15 in which the image is read as shown in black in the first read image S _1.

(Configuration of the first communication unit 12)
For example, the first communication unit 12 is configured to be able to exchange signals and data with other in-vehicle devices. The first communication unit 12 is configured to perform communication via a vehicle LAN (Local Area Network) 71 described later such as a CAN (Controller Area Network) or a LIN (Local Interconnect Network) mounted on the vehicle, for example. Has been.

(Configuration of control unit 14)
The control unit 14 includes, for example, a CPU (Central Processing Unit) that performs operations and processes on acquired data according to a stored program, a RAM (Random Access Memory) that is a semiconductor memory, a ROM (Read Only Memory), and the like. Microcomputer. In this ROM, for example, a program for operating the control unit 14 and a similarity threshold 140 are stored. The RAM is used as a storage area for storing, for example, the acquired registered biometric information 35 and calculation results. Note that the control unit 14 stores, for example, the registered biometric information 35 for each user and the registered biometric information 35 registered with a plurality of operation fingers of the user.

Control unit 14 extracts, for example, the feature point 5 performs extraction processing first with respect to the read image S _1. This extraction process is, for example, a ridge extraction process.

  The feature points 5 are, for example, a center point, a branch point, an end point, and a delta as shown in FIGS. 2 (a) and 2 (b), but are not limited thereto. The center point is a point that becomes the center of the fingerprint. A branch point is a point where the ridges of the fingerprint are branched. An end point is a point where a ridge is broken. A delta is a collection of ridges from three directions.

Control unit 14 extracts, for example, the feature point 5 from the first read image S _1. For example, the control unit 14 compares the acquired registered biometric information 35 with the biometric information 15 from which the feature points 5 are extracted, and based on the position of the feature points 5, the distance between the feature points 5, and the like. Is calculated. Then, the control unit 14, the similarity may was similarity threshold 140 or more, and outputs the authentication information S ₂ as the authentication of the biological information 15 is satisfied.

  The similarity threshold 140 is 80% as an example. That is, for example, when the number of feature points 5 of the biometric information 15 used for authentication is 80, the control unit 14 determines that if the 64 or more feature points 5 match the feature points 5 of the registered biometric information 35, the user Is determined to be a registrant. The coincidence includes coincidence such as the position of the feature point 5 and the distance between the feature points 5.

  Here, since the first biological information sensor 10 is arranged in a limited space such as the operation button 61 of the start switch device 6 as shown in FIG. 1A, for example, the maximum fingerprint area that can be read at one time is large. Small, that is, the amount of fingerprint information, in other words, the number of extracted feature points 5 of the fingerprint is small. Further, when the user operates the start switch device 6, there are various ways in which the operation finger 9 contacts the first reading surface 100 depending on how the user presses the start switch device 6.

  The control unit 14 does not generate the registered biometric information 35 by making contact with the first reading surface 100, but the biometric information registration device including the second reading surface 300 having a larger area than the first reading surface 100. Authentication is performed using the registered biometric information 35 generated in step 3. For example, as shown in FIGS. 2A and 2B, the registered biometric information 35 is an information amount larger than the information amount read through the first reading surface 100, that is, the first reading surface. More feature points 5 than the feature points 5 read through 100 are included.

As an example, the second reading surface 300 of the present embodiment has an area approximately three times that of the first reading surface 100. Thus the second read image S ₃ in FIG. 2 (b), as an example, has about 3 times the area of the first read image S ₁ of FIG. 2 (a). The registered biometric information 35 based on the second read image S ₃ has about three times the amount of information in comparison with the biometric information 15 based on the first read image S ₁ (the feature point 5).

  Therefore, the possibility that at least a part of the contacted area is included in the registered biometric information 35 even if the position where the operation finger 9 is brought into contact is compared with the registered biometric information having the same amount of information as the biometric information 15. The higher the possibility, the higher the possibility of authentication.

  Thus, the biometric information authentication device 1 differs in the maximum number of feature points 5 included in the read biometric information 15 and the acquired registered biometric information 35. Therefore, the control unit 14 obtains the number of matching feature points 5 and the feature points 5 of the registered biometric information 35 with the feature point 5 of the biometric information 15 as a reference, and compares it with the similarity threshold 140 so that the user It is determined whether or not is a registrant.

  Hereinafter, an example of the operation of the biometric information authentication apparatus 1 according to the present embodiment will be described with reference to the flowchart of FIG. Here, it is assumed that the biometric information authentication device 1 has already acquired the registered biometric information 35 via the first communication unit 12.

(Operation)
The control unit 14 of the biometric information authentication device 1 is capable of reading the biometric information 15 by supplying power, for example, when authentication between the portable device carried by the user and the vehicle is established and the vehicle door is unlocked. It becomes a state. And the control part 14 reads an electrostatic capacitance periodically, and monitors whether the user's biometric information 15 was read.

  When “Yes” in Step 1 is established, that is, when the user's biometric information 15 is read (Step 1: Yes), the control unit 14 obtains and stores the registered biometric information 35 from the biometric information registration device 3 in advance. Authentication is performed using (Step 2).

Control unit 14, when the authentication is established (Step3: Yes), authentication is output authentication information _{S 2} indicating that established via the first communication unit 12 (Step5).

  Here, in Step 3, when the authentication is not established (Step 3: No), the control unit 14 ends the authentication.

(Effects of the first embodiment)
The biometric information authentication device 1 according to the present embodiment can suppress erroneous authentication due to the small amount of information of the registered biometric information 35. The biometric information authenticating device 1 does not generate the registered biometric information 35 by itself, but the registered biometric information generated by the biometric information registering device 3 that can read a fingerprint of a larger area at one time compared to itself. 35 is used for authentication. Accordingly, the biometric information authentication device 1 has a large amount of information of the registered biometric information 35, that is, the number of feature points 5 that can be compared, compared to the case where the registered biometric information generated based on the biometric information read by the biometric information authentication device 1 is used. Therefore, it is possible to suppress erroneous authentication due to a small amount of information of the registered biometric information 35 used for authentication.

  The biometric information authentication device 1 has an amount of information equivalent to that of the biometric information 15 that the registered biometric information 35 may include at least part of the contacted area even if the position where the operation finger 9 is brought into contact is changed. Since it is higher than the registered biometric information, there is a high possibility that authentication will be established.

  When the biometric information authentication device 1 is disposed in the start switch device 6, as an example, the biometric authentication device 1 is often disposed on a panel or the like that faces the user, that is, stands on the floor of the vehicle. In this case, since the user operates the start switch device 6 with his hand extended, the user is highly likely to press the operation button 61 not on the belly of the operation finger 9 but on the tip side, and the number of feature points 5 of the biometric information 15 to be read. May be even less. However, since the biometric information authentication apparatus 1 performs authentication using the registered biometric information 35 covering a wide range, it can perform high-precision authentication.

[Second Embodiment]
The second embodiment is an embodiment related to the biometric information registration device 3.

  FIG. 4A is a schematic diagram illustrating an example of a biometric information registration apparatus according to the second embodiment, and FIG. 4B is an example of a block diagram of the biometric information registration apparatus. In the embodiments described below, parts having the same functions and configurations as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof is omitted.

  The biometric information registration device 3 includes, for example, a second biometric information sensor 30 that reads biometric information of a registrant who has contacted the second reading surface 300, as shown in FIGS. 4 (a) and 4 (b). The registered biometric information generating unit 32 that generates the registered biometric information 35 based on the biometric information of the read registrant, and the first reading surface 100 that is mounted on the vehicle and smaller than the second reading surface 300 is contacted. The second communication unit 34 as an output unit that outputs the registered biometric information 35 generated by the registered biometric information generation unit 32 to the biometric information authentication device 1 that reads the biometric information 15 of the user and authenticates with the registered biometric information 35. And is arranged outside the vehicle and is schematically configured. The biometric information registration device 3 includes a control unit 36.

(Configuration of Second Biological Information Sensor 30)
The second biological information sensor 30 is, for example, a capacitive sensor as with the first biological information sensor 10. For example, as shown in FIG. 4A, the second biological information sensor 30 is configured to read a fingerprint, that is, biological information, from the operation finger 9 that is in contact with the second reading surface 300. For the second reading surface 300, for example, an X ₂ Y ₂ coordinate system having the origin at the upper left of the paper surface of FIG.

  For example, as shown in FIG. 4A, the second reading surface 300 is exposed to the main body 3 a of the biometric information registration device 3. For example, the second reading surface 300 has an area larger than that of the first reading surface 100 of the biometric authentication apparatus 1 as shown in FIGS. 1 (a) and 4 (a). In FIG. 1A and FIG. 4A, the operation finger 9 is illustrated in the same size, and the second reading surface 300 is illustrated as being approximately three times the first reading surface 100.

The second biological information sensor 30 has, for example, a plurality of detection electrodes. The second biological information sensor 30 is, for example, when the X ₂ axis direction and row, reading the capacitance of the sense electrodes arranged in rows, followed by reading the capacitance of the sense electrodes instead of rows It is configured to repeatedly scan all the detection electrodes. As an example, the scanning period is about 100 ms.

Second living body information sensor 30 outputs, for example, the second read image S ₃ which is formed on the basis of a plurality of capacitive read by scanning the control unit 36. The second read image S _3, for example, similarly to the first read image S _1, is formed based on the electrostatic capacitance of the one period.

The second read image _{S 3} is a similar figure to the second reading surface _{300, x} 2 _{y 2} coordinate system corresponding to X 2 _{Y 2} coordinate system is set. And the registered biometric information 35 on which an image has been read as shown in black in the second read image S _3.

(Configuration of Registered Biometric Information Generation Unit 32)
Registered biometric information generating unit 32 performs the process of extracting feature points 5 for the second read image S ₃ obtained from the second biometric information sensor 30, the registered biometric information 35 as the authentication reference template Generate. The registered biometric information generation unit 32 outputs the generated registered biometric information 35 to the control unit 36.

(Configuration of second communication unit 34)
The second communication unit 34 is configured to exchange signals and data with the biometric information authentication device 1, for example. For example, the second communication unit 34 is configured to be able to communicate with the biometric information authentication device 1 wirelessly and to be configured to communicate with the biometric information authentication device 1 by wire.

(Configuration of control unit 36)
The control unit 36 is, for example, a microcomputer that includes a CPU that performs operations, processes, and the like on acquired data in accordance with stored programs, and a RAM and a ROM that are semiconductor memories. In this ROM, for example, a program for operating the control unit 36 is stored. The RAM is used as a storage area for storing, for example, calculation results.

For example, when the generation of the registered biometric information 35 is instructed by an instruction with a button or the like, the control unit 36 shifts to the registration mode. Control unit 36, upon transition to the registration mode, the second biological information sensor 30 to obtain a second scanned image S _3, to generate registered biometric information 35 and controls the registration biometric information generating unit 32.

  For example, the control unit 36 is electromagnetically connected to the biometric information authentication device 1 via the second communication unit 34. When the biometric information authentication device 1 instructs to output the registered biometric information 35, the control unit 36 registers biometric information. 35 is output.

  Below, operation | movement of the biometric information registration apparatus 3 of this Embodiment is demonstrated according to the flowchart of FIG.

(Operation)
When the control unit 36 of the biometric information registration apparatus 3 shifts to the registration mode (Step 10), the control unit 36 controls the second biometric information sensor 30 to read the biometric information of the registrant (Step 11).

Control unit 36, the registered biometric information generating unit 32 controls, and generates a second read registered biometric information 35 by performing the extraction process and the like to the image _{S 3} read (Step12).

  The control unit 36 outputs the generated registered biometric information 35 to the biometric information authentication device 1 connected via the second communication unit 34 (Step 13).

(Effect of the second embodiment)
The biometric information registration device 3 according to the present embodiment can suppress erroneous authentication due to a small amount of information of the registered biometric information 35 used for authentication in the biometric information authentication device 1. The biometric information registration device 3 can generate the registered biometric information 35 having a larger amount of information than the biometric information 15 that the biometric information authentication device 1 reads through the first reading surface 100. Compared with the case where registered biometric information having the same amount of information is generated, it is possible to suppress misrecognition caused by the small amount of information.

  Since the biometric authentication device 1 is mounted on a vehicle, the arrangement space is narrow and it is necessary to reduce the size. However, since the biometric information registration device 3 is not mounted on a vehicle, it is not necessary to reduce the size of the biometric information registration device 3. In addition, since the number of times the operation finger 9 is brought into contact with the second reading surface 300 is suppressed in order to generate the registered biometric information 35 with a large amount of information, the biometric information registration device 3 suppresses the user's operation load. Can do.

[Third embodiment]
The third embodiment is an embodiment relating to a biometric information authentication system 8 configured to include the biometric information authentication device 1 of the first embodiment and the biometric information registration device 3 of the second embodiment. is there.

  FIG. 6A is a schematic diagram showing an example of a biometric authentication system according to the third embodiment, and FIG. 6B is a block diagram showing an example of a communication system for a vehicle.

  For example, as shown in FIG. 6A, the biometric information authentication system 8 reads biometric information of a registrant who contacts the second reading surface 300 and generates registered biometric information 35 used for authentication. The information registration device 3, the registered biometric information 35 acquired from the biometric information registration device 3 that is electromagnetically connected, and the biometric information 15 of the user read through the first reading surface 100 smaller than the second reading surface 300 And a biometric information authentication device 1 that authenticates whether or not the user is a registrant.

  The biometric information authentication system 8 according to the present embodiment is further electromagnetically connected to the biometric information registration device 3 and the biometric information authentication device 1, stores the registered biometric information 35, and stores the registered biometric information 35 in the biometric information authentication device 1. The management server 80 is provided as a server for outputting to the server.

  For example, the management server 80 is configured to store the registered biometric information 35 of a plurality of registrants generated by the biometric information registration device 3 and to output to the vehicle 7 owned by the registrant. For example, the management server 80 is electromagnetically connected to a plurality of vehicles 7 to be connected.

  As an example, the biometric information authentication device 1 acquires the registered biometric information 35 from the management server 80 via the communication system 70 as illustrated in FIG. As an example, the communication system 70 includes a vehicle LAN 71, a vehicle control unit 72, and a communication unit 73.

  As an example, the vehicle LAN 71 enables mutual communication using standards such as CAN (Controller Area Network) and LIN (Local Interconnect Network). The vehicle control unit 72 is, for example, a microcomputer that controls the communication system 70 and the like. The communication unit 73 is configured to be able to wirelessly communicate with the management server 80, for example.

  The biometric information authentication system 8 may be configured such that the biometric information authentication device 1 and the biometric information registration device 3 are connected to the management server 80 by wire.

  Hereinafter, an example of the operation of the biometric authentication system 8 of the present embodiment will be described with reference to the sequence chart of FIG.

(Operation)
When the control unit 36 of the biometric information registration device 3 shifts to the registration mode, the control unit 36 controls the second biometric information sensor 30 and the registered biometric information generation unit 32 to generate the registered biometric information 35 (Step 20). Next, the control unit 36 outputs the registered biometric information 35 generated by controlling the second communication unit 34 to the management server 80 (Step 21).

The management server 80 stores the registered biometric information 35 output from the biometric information registration device 3 (Step 22). The management server 80, the instruction signal S ₄ for instructing the output of the registered biometric information 35 is input from the biometric information authentication device 1, when the instruction signal S ₄ input was correct instruction, outputs the instruction signal S ₄ The registered biometric information 35 is output to the biometric information authentication apparatus 1 (Step 23). This correct instruction indicates a case where the user of the transmission source vehicle 7 is a registrant. If the registrant and the user of the vehicle 7 do not match, the registered biometric information 35 is not output.

  The control unit 14 of the biometric information authentication device 1 receives and stores the registered biometric information 35 output from the management server 80 via the communication unit 73 and the vehicle LAN 71 of the communication system 70 (Step 24). And the control part 14 authenticates with the biometric information 15 read with the 1st biometric information sensor 10 using the acquired registration biometric information 35. FIG.

(Effect of the third embodiment)
The biometric information authentication system 8 according to the present embodiment can suppress erroneous authentication due to a small amount of registered biometric information 35 used for authentication. The biometric information authentication system 8 can output the registered biometric information 35 to the biometric information authentication apparatus 1 via the management server 80, so that the biometric information authentication apparatus generates registration biometric information for authentication. Thus, authentication using the registered biometric information 35 having a larger amount of information can be performed.

  As mentioned above, although some embodiment and modification of this invention were demonstrated, these embodiment and modification are only examples, and do not limit the invention based on a claim. These novel embodiments and modifications can be implemented in various other forms, and various omissions, replacements, changes, and the like can be made without departing from the scope of the present invention. In addition, not all combinations of features described in these embodiments and modifications are necessarily essential to the means for solving the problems of the invention. Further, these embodiments and modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Biometric information authentication apparatus, 3 ... Biometric information registration apparatus, 3a ... Main body, 5 ... Feature point, 6 ... Start switch apparatus, 7 ... Vehicle, 8 ... Biometric information authentication system, 9 ... Operating finger, 10 ... 1st Biometric information sensor, 12 ... first communication unit, 14 ... control unit, 15 ... biological information, 30 ... second biometric information sensor, 32 ... registered biometric information generation unit, 34 ... second communication unit, 35 ... registration Biological information, 36 ... control section, 60 ... main body, 61 ... operation button, 62 ... operation surface, 63 ... opening, 70 ... communication system, 71 ... vehicle LAN, 72 ... vehicle control section, 73 ... communication section, 80 ... management Server, 100 ... first reading surface, 140 ... similarity threshold, 300 ... second reading surface

Claims (5)

An acquisition unit that acquires the registered biometric information from a biometric information registration device that reads biometric information of a registrant who contacts the second reading surface outside the vehicle and generates registered biometric information;
A first biological information sensor that reads biological information of a user who is in contact with a first reading surface having a smaller area than the second reading surface;
An authenticating unit that authenticates whether or not the user is the registrant based on the acquired registered biometric information and the biometric information read by the first biometric information sensor;
A biometric information authentication device mounted on the vehicle. The first reading surface is disposed so as to be exposed on an operation surface of a switch mounted on the vehicle.
The biometric information authentication device according to claim 1. A second biometric information sensor for reading biometric information of a registrant who has contacted the second reading surface;
A registered biometric information generating unit that generates registered biometric information based on the read biometric information of the registrant;
The biometric information generating apparatus that reads the biometric information of a user that is mounted on a vehicle and contacts a first reading surface that is smaller than the second reading surface and performs authentication with the registered biometric information. An output unit for outputting the registered biometric information generated by the unit;
And a biometric information registration device arranged other than the vehicle. A biometric information registration device that reads biometric information of a registrant who contacts the second reading surface and generates registered biometric information used for authentication;
The user is registered based on the registered biometric information acquired from the biometric information registration device electromagnetically connected and the biometric information of the user read through the first reading surface smaller than the second reading surface. A biometric information authentication device for authenticating whether or not the person is a person,
A biometric information authentication system. A server that is electromagnetically connected to the biometric information registration device and the biometric information authentication device, stores the registered biometric information, and outputs the registered biometric information to the biometric information authentication device;
The biometric authentication system according to claim 4.

Images