Vehicle security system

• US 20080030301A1
• Filed: 05/08/2007
• Published: 02/07/2008
• Est. Priority Date: 05/10/2006
• Status: Active Grant

• Current Assignee: DENSO Corporation
• Original Assignee: DENSO Corporation
• Inventors: Terao, Iichirou
• Granted Patent: US 7,952,463 B2
• Time in Patent Office: Days
• US Class Current: 340/5.53
• CPC Class Codes: B60R 25/04 operating on the propulsion system, e.g. engine or drive motor
• CPC Class Codes: B60R 25/252 Fingerprint recognition
• CPC Class Codes: G07C 9/257 electronically G07C9/26 takes precedence
• CPC Class Codes: G07C 9/37 using biometric data, e.g. fingerprints, iris scans or voice recognition

Abstract

A vehicle security system includes a screen for displaying a message, a fingerprint reader provided to the screen to detect a fingerprint of a driver touching the screen with a finger, a switch having a first state for allowing engine start of a vehicle and a second state for prohibiting the engine start, and a controller for keeping the switch in the second state until receiving the fingerprint from the reader and for changing the switch to the first state upon receiving the fingerprint from the reader. The reader can detect the fingerprint of the driver without being noticed by the driver, because the message leads the driver to unquestioningly touch the screen with the finger. Even if the vehicle is stolen by the driver, the driver is identified by the detected fingerprint so that a chance of catching the driver can be increased.

Claims

1. A security system for a vehicle, comprising:

a screen for displaying a message that leads a driver of the vehicle to touch the screen with a finger;

detection means for detecting a biometric characteristic of the finger touching the screen and for outputting first biometric data corresponding to the detected biometric characteristic;

switch means that has a first state for allowing operation of the vehicle and a second state for prohibiting the operation of the vehicle; and

control means for keeping the switch means in the second state until receiving the first biometric data from the detection means, the control means changing the switch means to the first state upon receiving the first biometric data from the detection means.

2. The security system according to claim 1, further comprising:

input means for inputting enable and disable commands to the control means, wherein

the detection means has an enable mode where the detection means is enabled and a disable mode where the detection means is disabled, and

the control means switches the detection means to the enable mode in response to the enable command and switches the detection means to the disable mode in response to the disable command.

3. The security system according to claim 2, wherein

the input means is displayed on the screen to be operable by the driver so that the driver can input the enable and disable commands to the control means using the input means.

4. The security system according to claim 2, wherein

the enable and disable commands are provided from outside the vehicle, and

the input means includes first receiving means for receiving the enable and disable commands.

5. The security system according to claim 1, further comprising:

a nonvolatile memory, wherein

the control means stores the first biometric data in the nonvolatile memory.

6. The security system according to claim 1, wherein

the control means converts the first biometric data to second biometric data having a data format used in a predetermined fingerprint matching process.

7. The security system according to claim 6, further comprising:

transmitting means for transmitting at least one of the first and second biometric data to a predetermined destination in accordance with a first transmission command, wherein

the control means outputs the first transmission command to the transmitting means.

8. The security system according to claim 7, further comprising:

second receiving means for receiving a second transmission command from outside the vehicle and for outputting the first transmission command to the control means in accordance with the second transmission command.

9. The security system according to claim 7, wherein

the control means outputs the first transmission command to the transmitting means only when a predetermined condition is met.

10. The security system according to claim 7, further comprising:

a fingerprint database for containing third biometric data of at least one driver who is authorized to drive the vehicle, wherein

the control means checks the first biometric data against the third biometric data and outputs the first transmission command to the transmitting means only when the first biometric data is different from the third biometric data.

11. The security system according to claim 10, wherein

the control means adds alarm data to the at least one of the first and second biometric data when the first biometric data is different from the third biometric data, and

the alarm data indicates that the at least one of the first and second biometric data is different from the third biometric data.

12. The security system according to claim 7, further comprising:

a fingerprint database for containing third biometric data corresponding to the biometric characteristic of the finger of at least one person who is authorized to drive the vehicle, wherein

the control means checks the second biometric data against the third biometric data and outputs the first transmission command to the transmitting means only when the second biometric data is different from the third biometric data.

13. The security system according to claim 12, wherein

the control means adds alarm data to the at least one of the first and second biometric data when the second biometric data is different from the third biometric data, and

the alarm data indicates that the at least one of the first and second biometric data is different from the third biometric data.

14. The security system according to claim 1, wherein

the biometric characteristic is one of a fingerprint and a finger vein.

15. The security system according to claim 1, wherein

the screen is a screen of a monitor of a vehicle navigation system.