Database apparatus, attention calling apparatus and driving support apparatus

• US 7,705,738 B2
• Filed: 03/25/2008
• Issued: 04/27/2010
• Est. Priority Date: 03/30/2007
• Status: Active Grant

• Current Assignee: DENSO Corporation
• Original Assignee: DENSO Corporation
• Inventors: Hitomi, Kentarou, Fukaya, Naoki
• Primary Examiner(s): BLOUNT, ERIC
• Application Number:
  US12/079,134
• Publication Number:
  US 20080236929A1
• Time in Patent Office: 763 Days
• Field of Search: 340/573.1, 340/576, 340/575
• US Class Current: 340/576
• CPC Class Codes: B60T 7/22 initiated by contact of vehicle, e.g. bumper, with an external object, e.g. another vehicle , or by means of contactless obstacle detectors mounted on the vehicle
• CPC Class Codes: B60W 2040/0818 Inactivity or incapacity of driver
• CPC Class Codes: B60W 40/09 Driving style or behaviour

Abstract

An attention calling apparatus operates in the following manner. That is, eyes distribution pattern is generated from the behavior of the eyes of the vehicle driver captured by a camera in a predetermined time, and driver'"'"'s condition is estimated based on the distribution pattern. Further, concentration of the driver on driving is estimated based on the comparison between the distribution pattern and the stored information of distribution pattern. When the distribution pattern indicates that the degree of concentration on driving is high, the driving operation is stored in storage in association with the concentration degree. When the operation situation fulfills a notification provision condition, driver'"'"'s attention is called depending on the concentration degree.

Claims

1. A database apparatus comprising:

a condition estimation unit capable of estimating a driver condition of a driver who is driving a vehicle;

an operation acquisition unit capable of acquiring an operation sequence of the vehicle by the driver;

a storage unit capable of storing the driver condition estimated by the condition estimation unit and the operation sequence acquired by the operation acquisition unit;

a concentration estimation unit capable of estimating a degree of concentration of the driver on driving operation by comparing the driver condition estimated by the condition estimation unit or the operation sequence acquired by the operation acquisition unit with the driver condition or the operation sequence stored in the storage unit; and

a control unit capable of performing a control for sequentially storing, to the storage unit for accumulation, the driver condition in association with the operation sequence when the degree of concentration estimated by the concentration estimation unit is determined, by the control unit, to have a value that is higher than a threshold.

2. The database apparatus of claim 1, wherein

the condition estimation unit is configured to be capable of acquiring a trace of a look direction of the driver, and

the driver condition is estimated based on the trace of the look direction of the driver.

3. The database apparatus of claim 2, wherein

the condition estimation unit generates a look distribution pattern based on the trace of the look direction of the driver who drives the vehicle during a predetermined period for estimating the driver condition, and

the concentration estimation unit compares the look distribution pattern with the look distribution pattern stored in the storage unit for estimating the degree of concentration of the driver on driving operation.

4. The database apparatus of claim 1, wherein

the operation acquisition unit is configured to be capable of lateral movement of the vehicle based on a travel direction of the vehicle, and

the condition estimation unit estimates the driver condition based on a change rate of the lateral movement that is calculated as a ratio of the lateral movement against the movement in the travel direction of the vehicle.

5. The database apparatus of claim 1, wherein

the operation acquisition unit acquires a brake operation as the operation sequence of the driver, and

the concentration estimation unit estimates the degree of concentration of the driver on driving operation based on a brake operation timing.

6. An attention calling apparatus comprising:

the database apparatus of claim 1;

a notification unit capable of providing an attention call for the driver of the vehicle; and

an attention control unit capable of controlling the notification unit to provide the attention call, wherein the attention control unit determines whether a predetermined condition of operation sequence of the vehicle for providing the attention call is fulfilled based on the operation sequence acquired by the operation acquisition unit, and controls the notification unit to provide the attention call for the driver according to the degree of concentration of the driver on driving operation if the predetermined condition of the operation sequence is fulfilled.

7. A driving support apparatus comprising:

the database apparatus of claim 1;

a vehicle controller capable of controlling the vehicle upon receiving an instruction; and

a driving control unit capable of controlling the notification unit to provide the attention call, wherein the attention control unit determines whether the operation sequence of the vehicle fulfills a predetermined condition for controlling the vehicle is fulfilled based on the operation sequence acquired by the operation acquisition unit, and controls the notification unit to provide the attention call for the driver according to the degree of concentration of the driver on driving operation if the predetermined condition of the operation sequence is fulfilled.

8. The driving support apparatus of claim 7, wherein

the operation acquisition unit is configured to be capable of acquiring a distance between the vehicle and a front object that exists in front of the vehicle as well as acquiring a speed of the vehicle,

the predetermined condition for controlling the vehicle is defined as a time to reach the front object, and

the driving control unit calculates the time to reach the front object based on the distance to the front object and the speed of the vehicle acquired by the operation acquisition unit, and outputs an instruction for controlling the vehicle according to the degree of concentration of the driver on driving operation if the calculated time to reach the front object is smaller than a threshold.

9. An attention calling apparatus comprising:

the database apparatus of claim 2;

a notification unit capable of providing an attention call for the driver of the vehicle; and

an attention control unit capable of controlling the notification unit to provide the attention call, wherein the attention control unit determines whether a predetermined condition of operation sequence of the vehicle for providing the attention call is fulfilled based on the operation sequence acquired by the operation acquisition unit, and controls the notification unit to provide the attention call for the driver according to the degree of concentration of the driver on driving operation if the predetermined condition of the operation sequence is fulfilled.

10. An attention calling apparatus comprising:

the database apparatus of claim 3;

a notification unit capable of providing an attention call for the driver of the vehicle; and

an attention control unit capable of controlling the notification unit to provide the attention call, wherein the attention control unit determines whether a predetermined condition of operation sequence of the vehicle for providing the attention call is fulfilled based on the operation sequence acquired by the operation acquisition unit, and controls the notification unit to provide the attention call for the driver according to the degree of concentration of the driver on driving operation if the predetermined condition of the operation sequence is fulfilled.

11. An attention calling apparatus comprising:

the database apparatus of claim 4;

a notification unit capable of providing an attention call for the driver of the vehicle; and

an attention control unit capable of controlling the notification unit to provide the attention call, wherein the attention control unit determines whether a predetermined condition of operation sequence of the vehicle for providing the attention call is fulfilled based on the operation sequence acquired by the operation acquisition unit, and controls the notification unit to provide the attention call for the driver according to the degree of concentration of the driver on driving operation if the predetermined condition of the operation sequence is fulfilled.

12. An attention calling apparatus comprising:

the database apparatus of claim 5;

a notification unit capable of providing an attention call for the driver of the vehicle; and

an attention control unit capable of controlling the notification unit to provide the attention call, wherein the attention control unit determines whether a predetermined condition of operation sequence of the vehicle for providing the attention call is fulfilled based on the operation sequence acquired by the operation acquisition unit, and controls the notification unit to provide the attention call for the driver according to the degree of concentration of the driver on driving operation if the predetermined condition of the operation sequence is fulfilled.

13. A driving support apparatus comprising:

the database apparatus of claim 2;

a vehicle controller capable of controlling the vehicle upon receiving an instruction; and

a driving control unit capable of controlling the notification unit to provide the attention call, wherein the attention control unit determines whether the operation sequence of the vehicle fulfills a predetermined condition for controlling the vehicle is fulfilled based on the operation sequence acquired by the operation acquisition unit, and controls the notification unit to provide the attention call for the driver according to the degree of concentration of the driver on driving operation if the predetermined condition of the operation sequence is fulfilled.

14. The driving support apparatus of claim 13, wherein

the operation acquisition unit is configured to be capable of acquiring a distance between the vehicle and a front object that exists in front of the vehicle as well as acquiring a speed of the vehicle,

the predetermined condition for controlling the vehicle is defined as a time to reach the front object, and

the driving control unit calculates the time to reach the front object based on the distance to the front object and the speed of the vehicle acquired by the operation acquisition unit, and outputs an instruction for controlling the vehicle according to the degree of concentration of the driver on driving operation if the calculated time to reach the front object is smaller than a threshold.

15. A driving support apparatus comprising:

the database apparatus of claim 3;

a vehicle controller capable of controlling the vehicle upon receiving an instruction; and

a driving control unit capable of controlling the notification unit to provide the attention call, wherein the attention control unit determines whether the operation sequence of the vehicle fulfills a predetermined condition for controlling the vehicle is fulfilled based on the operation sequence acquired by the operation acquisition unit, and controls the notification unit to provide the attention call for the driver according to the degree of concentration of the driver on driving operation if the predetermined condition of the operation sequence is fulfilled.

16. The driving support apparatus of claim 15, wherein

the operation acquisition unit is configured to be capable of acquiring a distance between the vehicle and a front object that exists in front of the vehicle as well as acquiring a speed of the vehicle,

the predetermined condition for controlling the vehicle is defined as a time to reach the front object, and

the driving control unit calculates the time to reach the front object based on the distance to the front object and the speed of the vehicle acquired by the operation acquisition unit, and outputs an instruction for controlling the vehicle according to the degree of concentration of the driver on driving operation if the calculated time to reach the front object is smaller than a threshold.

17. A driving support apparatus comprising:

the database apparatus of claim 4;

a vehicle controller capable of controlling the vehicle upon receiving an instruction; and

a driving control unit capable of controlling the notification unit to provide the attention call, wherein the attention control unit determines whether the operation sequence of the vehicle fulfills a predetermined condition for controlling the vehicle is fulfilled based on the operation sequence acquired by the operation acquisition unit, and controls the notification unit to provide the attention call for the driver according to the degree of concentration of the driver on driving operation if the predetermined condition of the operation sequence is fulfilled.

18. The driving support apparatus of claim 17, wherein

the operation acquisition unit is configured to be capable of acquiring a distance between the vehicle and a front object that exists in front of the vehicle as well as acquiring a speed of the vehicle,

the predetermined condition for controlling the vehicle is defined as a time to reach the front object, and

the driving control unit calculates the time to reach the front object based on the distance to the front object and the speed of the vehicle acquired by the operation acquisition unit, and outputs an instruction for controlling the vehicle according to the degree of concentration of the driver on driving operation if the calculated time to reach the front object is smaller than a threshold.

19. A driving support apparatus comprising:

the database apparatus of claim 5;

a vehicle controller capable of controlling the vehicle upon receiving an instruction; and

a driving control unit capable of controlling the notification unit to provide the attention call, wherein the attention control unit determines whether the operation sequence of the vehicle fulfills a predetermined condition for controlling the vehicle is fulfilled based on the operation sequence acquired by the operation acquisition unit, and controls the notification unit to provide the attention call for the driver according to the degree of concentration of the driver on driving operation if the predetermined condition of the operation sequence is fulfilled.

20. The driving support apparatus of claim 19, wherein

the operation acquisition unit is configured to be capable of acquiring a distance between the vehicle and a front object that exists in front of the vehicle as well as acquiring a speed of the vehicle,

the predetermined condition for controlling the vehicle is defined as a time to reach the front object, and

the driving control unit calculates the time to reach the front object based on the distance to the front object and the speed of the vehicle acquired by the operation acquisition unit, and outputs an instruction for controlling the vehicle according to the degree of concentration of the driver on driving operation if the calculated time to reach the front object is smaller than a threshold.