JP2019182191A - Fingerprint authentication system for vehicle - Google Patents

Abstract

To provide a fingerprint authentication system for a vehicle which can suppress further consumption of electric power.SOLUTION: A fingerprint authentication system for a vehicle comprises: a fingerprint reading part having a fingerprint reading surface against which a finger designated for fingerprint authentication is pressed on a surface of a door handle of a driver's seat; a fingerprint authentication information storage part which stores fingerprint authentication information for authenticating a fingerprint that is read by the fingerprint reading part; a switch which is disposed in a deeper position from the fingerprint reading part and turns on when the finger designated for fingerprint authentication is pressed against the fingerprint reading surface with such a force that allows the fingerprint to be read by the fingerprint reading part; and a fingerprint authentication part which is started together with the finger print reading part as well as the finger print authentication information storage part when the switch is turned on and performs authentication of the fingerprint read by the fingerprint reading part on the basis of the fingerprint authentication information stored in the fingerprint authentication information storage part.SELECTED DRAWING: Figure 1

Description

  The present disclosure relates to a fingerprint authentication system for a vehicle.

Patent Document 1 discloses a fingerprint reading sensor (fingerprint reading unit) that reads a fingerprint of a person who intends to release a door lock of a vehicle, a memory (storage unit) that stores information on fingerprints registered in advance, and a control unit. An antitheft device including (a fingerprint authentication unit and a control unit) is disclosed. Such an anti-theft device collates the fingerprint information read by the fingerprint reading sensor with the fingerprint information stored in the memory, and reads the fingerprint information stored in the memory by the fingerprint reading sensor. Fingerprint authentication is performed to determine whether or not there is a match with the fingerprint information. If there is a match as a result of fingerprint authentication, the person who tries to release the door lock of the vehicle Control is performed so that the door can be opened, and if there is no match, the person cannot open the door.
In addition, the anti-theft device is provided with an approach sensor for detecting the approach of a person to the vehicle, and when the approach sensor detects the approach of a person, the sleep state shifts to a standby state, and then shifts to a standby state. Thereafter, when the fingerprint reading operation is not performed within a predetermined time, the standby state is shifted to the sleep state.

JP 2008-62690 A

  In the anti-theft device disclosed in Patent Document 1, when a person approaches the vehicle, the sleep state shifts to the standby state. Therefore, a person other than the person who tries to open the door (for example, a person who just passes by the side of the vehicle). Even when approaching, it shifts from the sleep state to the standby state. Even when a person other than the person trying to open the door approaches in this way, it is preferable from the viewpoint of power saving because the anti-theft device consumes more power than necessary to shift (start) from the sleep state to the standby state. Absent.

  In view of the above-described circumstances, at least one embodiment of the present invention aims to provide a fingerprint authentication system for a vehicle that can suppress further power consumption.

  (1) A fingerprint authentication system for a vehicle according to at least one embodiment of the present invention includes a fingerprint reading unit having a fingerprint reading surface on which a finger to be subjected to fingerprint authentication is pressed against the surface of a door handle of a driver's seat, and the fingerprint reading A fingerprint authentication information storage unit for storing fingerprint authentication information for authenticating the fingerprint read by the unit, and a fingerprint that is disposed at the back of the fingerprint reading unit and is capable of reading the fingerprint by the fingerprint reading unit. A switch that is turned on when a finger to be authenticated is pressed against the fingerprint reading surface, and that is activated together with the fingerprint reading unit and the fingerprint authentication information storage unit when the switch is turned on; A fingerprint authentication unit that authenticates the fingerprint read by the reading unit based on the fingerprint authentication information stored in the fingerprint authentication information storage unit.

  According to the configuration of (1) above, the switch is turned on when a finger to be subjected to fingerprint authentication is pressed against the fingerprint reading surface with a force capable of reading a fingerprint. It starts with the fingerprint authentication information storage unit and authenticates the fingerprint read by the fingerprint reading unit based on the fingerprint authentication information stored in the fingerprint authentication information storage unit. Therefore, the fingerprint reading unit, the fingerprint authentication information storage unit, and the fingerprint authentication unit are activated only when a person who wants to open the door presses the finger to be fingerprint-authenticated against the fingerprint reading surface. Consumption can be suppressed.

(2) In some embodiments, in the configuration of (1), the fingerprint reading unit, the fingerprint authentication information storage unit, and the fingerprint authentication unit are stopped when an ignition switch is turned on.
According to the configuration of (2) above, when the ignition switch is turned on, the fingerprint reading unit, the fingerprint authentication information storage unit, and the fingerprint authentication unit are stopped. Henceforth, the fingerprint reading is continued until the switch is turned on again. No power is consumed in the authentication unit, the fingerprint authentication information storage unit, and the fingerprint authentication unit, and further power consumption can be suppressed.

(3) In some embodiments, in the configuration of (1) or (2), the door lock unit that locks the door of the driver's seat in a closed state when the fingerprint authentication unit authenticates the fingerprint is unlocked. Having a control unit.
According to the configuration of (3) above, the control unit unlocks the door lock unit that locks the door of the driver's seat in the closed state when the fingerprint authentication unit authenticates the fingerprint. Thereby, the door lock part which locks the door of a driver's seat in a closed state can be unlocked without using a key.

(4) In some embodiments, in the configuration of the above (3), the control unit sets the ignition switch in a state where the ignition switch can be turned on when the fingerprint authentication unit authenticates the fingerprint.
According to the configuration of (4) above, the control unit enables the ignition switch to be turned on when the fingerprint is authenticated by the fingerprint authentication unit, so that authentication when the ignition switch is turned on can be omitted. .

(5) In some embodiments, in the configuration of (3) above, a key information receiving unit capable of receiving key information transmitted from a keyless operation key, and authenticating the key information received by the key information receiving unit. When the key is turned on, the key authentication information storage unit storing the key authentication information for the key authentication information is activated together with the key information reception unit and the key authentication information storage unit, and received by the key information reception unit. A key authentication unit that authenticates the key information based on the key authentication information stored in the key authentication information storage unit, and the control unit authenticates the fingerprint when the key authentication unit authenticates the key information. The door lock part is unlocked regardless of the authentication result of the part.
According to the configuration of (5) above, when the key authentication unit authenticates the key information, the control unit unlocks the door lock unit regardless of the authentication result of the fingerprint authentication unit. Therefore, when the key authentication unit authenticates the key information, it is not necessary to authenticate the fingerprint in the fingerprint authentication unit, and the door lock unit can be unlocked in a short time.

(6) In some embodiments, in any one of the configurations (3) to (5), when the fingerprint authentication unit authenticates the fingerprint, the control unit applies the authenticated fingerprint. The sheet is moved to the position of the sheet stored in association.
According to the configuration of (6) above, when the fingerprint is authenticated by the fingerprint authentication unit, the control unit moves the sheet to the position of the sheet stored in association with the authenticated fingerprint. Therefore, it is not necessary to separately adjust the position of the sheet.

  According to at least one embodiment of the present invention, a fingerprint reading unit, a fingerprint authentication information storage unit, and fingerprint authentication are performed only when a person who wants to open a door presses a finger to be subjected to fingerprint authentication against the fingerprint reading surface. Since the unit is activated, further power consumption can be suppressed.

It is a block diagram which shows roughly the control structure of the fingerprint authentication system which concerns on one Embodiment of this invention. It is a perspective view which shows roughly the motor vehicle carrying the fingerprint authentication system shown in FIG. FIG. 2 is a front view schematically showing the door handle shown in FIG. 1. FIG. 4 is a sectional view of the door handle shown in FIG. 3 taken along line IV-IV. It is a flowchart which shows roughly an example of the control content of the fingerprint authentication system shown in FIG. It is a flowchart which shows roughly another example of the control content of the fingerprint authentication system shown in FIG.

Hereinafter, some embodiments of the present invention will be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative arrangements, etc. of the components described in the embodiments or shown in the drawings are not intended to limit the scope of the present invention, but are merely illustrative examples. Absent.
For example, expressions expressing relative or absolute arrangements such as “in a certain direction”, “along a certain direction”, “parallel”, “orthogonal”, “center”, “concentric” or “coaxial” are strictly In addition to such an arrangement, it is also possible to represent a state of relative displacement with an angle or a distance such that tolerance or the same function can be obtained.
In addition, for example, expressions representing shapes such as quadrangular shapes and cylindrical shapes not only represent shapes such as quadrangular shapes and cylindrical shapes in a strict geometric sense, but also within the range where the same effect can be obtained. A shape including a chamfered portion or the like is also expressed.
On the other hand, the expressions “comprising”, “comprising”, “comprising”, “including”, or “having” one constituent element are not exclusive expressions for excluding the existence of the other constituent elements.

  FIG. 1 is a block diagram schematically showing a control configuration of a fingerprint authentication system 1 according to an embodiment of the present invention. FIG. 2 is a perspective view schematically showing an automobile 100 equipped with the fingerprint authentication system 1 shown in FIG. 3 is a front view schematically showing the door handle 111 shown in FIG. 1, and FIG. 4 is a cross-sectional view taken along the line IV-IV of the door handle 111 shown in FIG. FIG. 5 is a diagram showing an example of the control content of the fingerprint authentication system 1 shown in FIG. 1, and FIG. 6 is a diagram showing another example of the control content of the fingerprint authentication system 1 shown in FIG.

  As shown in FIG. 1, a fingerprint authentication system 1 according to an embodiment of the present invention includes a fingerprint reading unit 2, a fingerprint authentication information storage unit 3, a switch 4, and a fingerprint authentication unit 5.

  The fingerprint reading unit 2 is for reading a fingerprint of a user (driver) who opens the door 110 of the driver's seat. As shown in FIG. 2, the fingerprint reading unit 2 is attached to a door handle 111 provided outside the door 110 of the driver's seat. Has been placed. As shown in FIGS. 3 and 4, the fingerprint reading unit 2 has a fingerprint reading surface 21 on which a finger to be subjected to fingerprint authentication is pressed against the outer surface of the door handle 111.

As shown in FIG. 1, the fingerprint authentication information storage unit 3 is for storing fingerprint authentication information for authenticating the fingerprint read by the fingerprint reading unit 2. The fingerprint authentication information is information for authenticating a fingerprint of a person who is permitted to drive the automobile 100. The fingerprint authentication information is information for authenticating the fingerprint of the owner of the automobile 100 when the automobile 100 is driven by the owner of the automobile 100, for example, when the automobile 100 is car-shared. Is information for authenticating a fingerprint of a person who is permitted to drive the automobile 100. The fingerprint authentication information may be, for example, information on the fingerprint itself, but may be information on a feature point of the fingerprint that is sufficient to specify an individual.
When the car 100 is car-shared, authentication information for authenticating a fingerprint of a person who is permitted to drive the car 100 may be acquired from the communication unit 31.

  The switch 4 is turned on when a finger to be subjected to fingerprint authentication is pressed against the fingerprint reading surface 21 with such a force that the fingerprint reading unit 2 can read the fingerprint. As shown in FIG. 4, the switch 4 is disposed behind the fingerprint reading unit 2. For example, the switch 4 is a tact switch.

  The fingerprint authentication unit 5 is for authenticating the fingerprint read by the fingerprint reading unit 2 based on the fingerprint authentication information stored in the fingerprint authentication information storage unit 3. The fingerprint authentication unit 5 is activated together with the fingerprint reading unit 2 and the fingerprint authentication information storage unit 3 when the switch 4 is turned on.

  As shown in FIG. 5, in the fingerprint authentication system 1 according to the embodiment of the present invention described above, a finger to be subjected to fingerprint authentication is applied to the fingerprint reading surface 21 with a force that allows the fingerprint reading unit 2 to read the fingerprint. When pressed, the switch 4 is turned on (step S11: Yes), and the fingerprint authentication unit 5 is activated together with the fingerprint reading unit 2 and the fingerprint authentication information storage unit 3 (step S12). The fingerprint authentication unit 5 authenticates the fingerprint read by the fingerprint reading unit 2 based on the fingerprint authentication information stored in the fingerprint authentication information storage unit 3 (step S13).

  According to the fingerprint authentication system 1 according to the embodiment of the present invention described above, the fingerprint reading unit 2 is only applied when a person who intends to open the door 110 presses the finger to be subjected to fingerprint authentication against the fingerprint reading surface 21. Since the fingerprint authentication information storage unit 3 and the fingerprint authentication unit 5 are activated, further power consumption can be suppressed.

  When the ignition switch 120 is turned on, the fingerprint authentication system 1 according to the embodiment of the present invention stops when the fingerprint reading unit 2, the fingerprint authentication information storage unit 3, and the ignition switch 120 are turned on.

  According to the fingerprint authentication system 1 according to the embodiment of the present invention described above, when the ignition switch 120 is turned on (step S17: Yes), the fingerprint reading unit 2, the fingerprint authentication information storage unit 3, and the fingerprint authentication unit 5 is stopped (step S18), and thereafter, power is not consumed in the fingerprint reading unit 2, the fingerprint authentication information storage unit 3, and the fingerprint authentication unit 5 until the switch 4 is turned on again. Consumption can be suppressed.

  As shown in FIG. 1, the fingerprint authentication system 1 according to an embodiment of the present invention further includes a control unit 6. When the fingerprint authentication unit 5 authenticates the fingerprint, the control unit 6 unlocks the door lock unit 112 that locks the door 110 of the driver's seat in the closed state.

  As shown in FIG. 5, in the fingerprint authentication system 1 according to the embodiment of the present invention described above, the control unit 6 opens the door 110 when the fingerprint authentication unit 5 authenticates a fingerprint (Step S14: Yes). Since the door lock portion 112 that is locked in the closed state is unlocked (step S15), the door lock portion 112 that locks the door 110 of the driver's seat in the closed state can be unlocked without using a key.

  In the fingerprint authentication system 1 according to an embodiment of the present invention, the control unit 6 sets the ignition switch 120 in a state where the ignition switch 120 can be turned on when the fingerprint authentication unit 5 authenticates the fingerprint. The state in which the ignition switch 120 can be turned on is, for example, the same state as that in the ACC position when the ignition switch 120 has four positions of OFF, ACC, IG-ON, and START. It is a mode that can be turned on. The position of the ignition switch 120 is managed by, for example, the vehicle main power management device 140.

  According to the fingerprint authentication system 1 according to the embodiment of the present invention described above, the control unit 6 can turn on the ignition switch 120 when the fingerprint authentication unit 5 authenticates the fingerprint (Yes in step S14). (Step S16), the authentication when the ignition switch 120 is turned on can be omitted.

  As shown in FIG. 1, the fingerprint authentication system 1 according to an embodiment of the present invention further includes a key information receiving unit 7, a key authentication information storage unit 8, and a key authentication unit 9.

The key information receiving unit 7 can receive the key information transmitted from the keyless operation key 130. The key information is information that is authenticated by the key authentication unit 9 and includes, for example, an identification code that identifies the keyless operation key 130.
The key authentication information storage unit 8 stores key authentication information for authenticating the key information received by the key information receiving unit 7. The key authentication information is, for example, information that is paired with key information, and is, for example, the same identification code as the identification code included in the key information.

  The key authentication unit 9 is for authenticating the key information received by the key information receiving unit 7 based on the key authentication information stored in the key authentication information storage unit 8. As shown in FIG. 6, when the switch 4 is turned on (step S11: Yes), the key authentication unit 9 is activated together with the key information reception unit 7 and the key authentication information storage unit 8 (step S22).

  When the key authentication unit 9 authenticates the key information (steps S23 to S25: Yes), the control unit 6 unlocks the door lock unit 112 regardless of the authentication result of the fingerprint authentication unit 5 (step S26). ).

  According to the fingerprint authentication system 1 according to the embodiment of the present invention described above, the control unit 6 is configured such that when the key authentication unit 9 authenticates the key information, the door lock unit 112 regardless of the authentication result of the fingerprint authentication unit 5. To unlock. Therefore, when the key authentication unit 9 authenticates the key information, it is not necessary to authenticate the fingerprint in the fingerprint authentication unit 5, and the door lock unit 112 can be unlocked in a short time.

  In the fingerprint authentication system 1 according to the embodiment of the present invention, when the fingerprint authentication unit 5 authenticates the fingerprint, the control unit 6 places the vehicle seat 150 at the position of the sheet stored in association with the authenticated fingerprint. Move. For example, the vehicle seat 150 includes an actuator 151 for moving the vehicle seat 150, and the vehicle seat can be moved to an arbitrary position by an instruction from the control unit 6.

  According to the fingerprint authentication system 1 according to the embodiment of the present invention described above, when the fingerprint authentication unit 5 authenticates the fingerprint, the control unit 6 places the stored position in the sheet associated with the authenticated fingerprint. Move the sheet. Therefore, it is not necessary to separately adjust the position of the sheet.

  The present invention is not limited to the above-described embodiments, and includes forms obtained by modifying the above-described embodiments and forms obtained by appropriately combining these forms.

DESCRIPTION OF SYMBOLS 1 Fingerprint authentication system 2 Fingerprint reading part 21 Fingerprint reading surface 3 Fingerprint authentication information storage part 4 Switch 5 Fingerprint authentication part 6 Control part 7 Key information receiving part 8 Key authentication information storage part 9 Key authentication part 100 Automobile 110 Door 111 Door handle 112 Door lock unit 120 Ignition switch 130 Keyless operation key 140 Power management device 150 Vehicle seat

Claims (6)

A fingerprint reading unit having a fingerprint reading surface on which a finger to be subjected to fingerprint authentication is pressed on the surface of the door handle of the driver's seat;
A fingerprint authentication information storage unit storing fingerprint authentication information for authenticating the fingerprint read by the fingerprint reading unit;
A switch that is disposed in the back of the fingerprint reading unit and that is turned on when a finger that is subject to fingerprint authentication is pressed against the fingerprint reading surface with a force that allows the fingerprint reading unit to read a fingerprint;
When the switch is turned on, it starts together with the fingerprint reading unit and the fingerprint authentication information storage unit, and the fingerprint read in the fingerprint reading unit is based on the fingerprint authentication information stored in the fingerprint authentication information storage unit A fingerprint authentication unit for authenticating
A fingerprint authentication system for a vehicle, comprising:   2. The vehicle fingerprint authentication system according to claim 1, wherein the fingerprint reading unit, the fingerprint authentication information storage unit, and the fingerprint authentication unit are stopped when an ignition switch is turned on. A control unit for unlocking a door lock unit that locks the door of the driver's seat in a closed state when a fingerprint is authenticated in the fingerprint authentication unit;
The fingerprint authentication system for a vehicle according to claim 1 or 2. The control unit is configured to turn on an ignition switch when a fingerprint is authenticated by the fingerprint authentication unit;
The vehicle fingerprint authentication system according to claim 3. A key information receiving unit capable of receiving key information transmitted from a keyless operation key;
A key authentication information storage unit storing key authentication information for authenticating the key information received by the key information receiving unit;
When the switch is turned on, the key authentication information is activated together with the key information receiving unit and the key authentication information storing unit, and the key information received by the key information receiving unit is stored in the key authentication information storing unit. A key authenticator for authenticating based on
Further comprising
The control unit unlocks the door lock unit regardless of the authentication result of the fingerprint authentication unit when the key authentication unit authenticates the key information;
The vehicle fingerprint authentication system according to claim 3.   6. The control unit according to claim 3, wherein when the fingerprint is authenticated by the fingerprint authentication unit, the control unit moves the sheet to the position of the sheet stored in association with the authenticated fingerprint. The vehicle fingerprint authentication system according to one item.

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