Method and system for preventing leaving a child in an unattended vehicle

• US 7,786,852 B2
• Filed: 03/19/2008
• Issued: 08/31/2010
• Est. Priority Date: 03/19/2008
• Status: Expired due to Fees

• Current Assignee: Greg C. Kautz
• Original Assignee: Greg C. Kautz
• Inventors: Kautz, Greg C.
• Primary Examiner(s): Nguyen; Hung T.
• Application Number:
  US12/051,622
• Publication Number:
  US 20090237229A1
• Time in Patent Office: 895 Days
• Field of Search: 340/457, 340/667, 340/666, 340/665, 340/425.5, 340/573.1, 180/272, 180/287, 701/44, 701/45
• US Class Current: 340/457
• CPC Class Codes: B60N 2/002 Seats provided with an occupancy detection means mounted therein or thereon detection means responsive to presence or absence of children B60N2/266
• CPC Class Codes: B60N 2/0025 by using weight measurement
• CPC Class Codes: B60N 2/272 Buckle lock sensors for child seat safety belts
• CPC Class Codes: B60N 2/2812 for securing the child to the child seat
• CPC Class Codes: B60N 2220/20 using a deterministic algorithm
• CPC Class Codes: B60N 2230/20 Wireless data transmission

Abstract

A method is provided that includes determining whether a fastener of a child seat is fastened, determining whether a person is seated in a vehicle seat, and if it is determined that the fastener is fastened and the person is not seated in the vehicle seat: enabling a first notification signal of the alarm system, enabling a delay of the alarm system for a period of time, enabling a second notification signal of the alarm system if a door of the vehicle is locked within the period of time, and enabling the second notification signal after expiration of the period of time. If it is determined that the fastener is not fastened or the person is seated in the vehicle seat, the method includes resetting the alarm system.

Claims

1. A method for use with a child seat in a vehicle using a controller, the method comprising:

determining whether a fastener of the child seat is fastened;

determining whether a person is seated in a vehicle seat;

if it is determined that the child seat fastener is fastened and the person is not seated in the vehicle seat;

enabling a first notification signal of an alarm system;

enabling a delay of the alarm system for a period of time;

enabling a second notification signal of the alarm system if a door of the vehicle is locked within the period of time; and

enabling the second notification signal after expiration of the period of time; and

if it is determined that the child seat fastener is not fastened or the person is seated in the vehicle seat, resetting the alarm system.

2. The method of claim 1, wherein the resetting the alarm system includes disabling all notification signals that were previously enabled thereby indicating that the alarm system is operating properly.

3. The method of claim 1, including configuring the first notification signal to be an audible alarm signal, a visual alarm, or combination thereof.

4. The method of claim 1, including configuring the second notification signal to be a horn alarm signal.

5. The method of claim 1, including selecting the period of time to be from about 1 minute to 5 minutes.

6. The method of claim 1, wherein the determining includes determining whether the person is seated in a driver seat of the vehicle.

7. The method of claim 6, wherein the enabling the second notification signal includes enabling the second notification signal if a driver door of the vehicle is locked within the period of time.

9. The system of claim 1, wherein the controller is configured to reset the alarm system by disabling all notification signals that were previously enabled thereby indicating that the alarm system is operating properly.

10. The system of claim 1, wherein the first notification signal includes an audible alarm signal, a visual alarm signal, or combination thereof.

11. The system of claim 1, wherein the second notification signal includes a horn alarm signal.

12. The system of claim 1, wherein the period of time is from about 1 minute and 5 minutes.

13. The system of claim 1, wherein the second detector detects whether the person is seated in a driver seat.

14. The system of claim 1, wherein the third detector detects whether a driver door is locked.

8. A system for use with a child seat in a vehicle, the system comprising a first detector for detecting whether a fastener of the child seat is fastened, a second detector for detecting whether a person is seated in a vehicle seat, a third detector for detecting whether a door of the vehicle is locked, and a controller that is configured to:

determine whether the fastener of the child seat is fastened;

determine whether the person is seated in the vehicle seat;

if it is determined that the fastener is fastened and the person is not seated in the vehicle seat;

enable a first notification signal of an alarm system;

enable a delay of the alarm system for a period of time;

enable a second notification signal of the alarm system if a door of the vehicle is locked within the period of time; and

enable the second notification signal after expiration of the period of time; and

if it is determined that the fastener is not fastened or the person is seated in the vehicle seat, reset the alarm system.

15. A method for preventing leaving a child in an unattended vehicle using a controller, the method comprising:

enabling a first notification signal of an alarm system when a fastener of a child seat is fastened, the child seat being located in the vehicle;

resetting the alarm system when a person is seated in the driver seat;

thereafter, enabling a second notification signal of the alarm system for a period of time when the person is not seated in the driver seat and the fastener of the child seat remains fastened;

enabling a third notification signal of the alarm system when a driver door of the vehicle is locked within the period of time;

enabling the third notification signal of the alarm system after expiration of the period of time; and

resetting the alarm system when the fastener of the child seat is unfastened.

16. The method of claim 15, wherein the first notification signal is one of a visual alarm signal, an audible alarm signal, and combinations thereof.

17. The system of claim 15, wherein the second notification signal is one of a visual alarm signal, an audible alarm signal, and combinations thereof.

18. The method of claim 15, wherein the third notification signal is a horn alarm signal.

19. The method of claim 15, including maintaining the first notification signal enabled until the person is seated in the driver seat.

20. The method of claim 15, including maintaining the third notification signal enabled until the fastener of the child seat is unfastened.