Method and system for monitoring a patient in a premises

• US 7,443,304 B2
• Filed: 12/08/2006
• Issued: 10/28/2008
• Est. Priority Date: 12/09/2005
• Status: Active Grant

• Current Assignee: Ademco Inc. (Resideo Technologies, Inc.)
• Original Assignee: Honeywell International Inc.
• Inventors: Chen, Hong-Jyh, Zakrewski, David S, Martin, Christopher D, Rowe, Meredeth A, Hope, Gordon G, Pascual, Victor
• Primary Examiner(s): Bugg; George A
• Assistant Examiner(s): Mehmood; Jennifer
• Application Number:
  US11/636,352
• Publication Number:
  US 20070132558A1
• Time in Patent Office: 690 Days
• Field of Search: 340/506, 340/507, 340/508, 340/509, 340/510, 340/511, 340/512, 340/513, 340/426.15, 340/539.14, 340/539.16, 340/539.17, 340/539.18, 340/539.19, 340/539.2, 340/541, 340550-561, 340/573.4, 340/825.19, 340/286.07, 340/573.1, 455/404.1, 455/404.2, 455/507, 455/521, 600/534
• US Class Current: 340/573.1
• CPC Class Codes: G08B 21/04 responsive to non-activity, e.g. of elderly persons G08B21/06 takes precedence
• CPC Class Codes: G08B 21/22 responsive to presence or absence of persons

Abstract

A system and method for monitoring the whereabouts of a patient in a house using security system components such as motion detectors and the like, and for providing automated lighting sequences to strategically located light fixtures for use as an aide in the patient walking around the house unattended.

Claims

1. A method of monitoring a patient located in a premises with a security system, comprising the steps of:

strategically locating a first plurality of motion detectors in a first area under surveillance in the premises comprising a plurality of walls, a floor, a door, and a bed, by locating a first motion detector on a first wall at approximately the same height as a top surface of the bed, locating a second motion detector approximately one foot above the floor along a side of the bed the patient normally leaves from, and locating a third motion detector near the door;

monitoring the first area under surveillance with the first plurality of motion detectors to ascertain if a patient has moved from an in-bed position by collecting signals from each of the first plurality of motion detectors and determining if the signals from each of the first plurality of motion detectors match a first predetermined pattern indicative of movement from the in-bed position, the first predetermined pattern comprising when the second motion detector is activated, the first motion detector is not activated for approximately five seconds after the second motion detector is activated, and the third motion detector is not activated, it is determined that the patient has moved from the in-bed position; and

providing a notification if it is determined that the patient has moved from the in-bed position.

2. The method of claim 1 further comprising the step of

ascertaining if a patient has left the first area under surveillance by determining if the signals from each of the first plurality of motion detectors match a second predetermined pattern indicative of leaving the first area under surveillance.

3. The method of claim 2 wherein the second predetermined pattern further comprises:

when the third motion detector is activated, it is determined that the patient has left the first area under surveillance.

4. The method of claim 3 further comprising the steps of

ascertaining if the patient has returned to the bed by collecting signals from each of the first plurality of motion detectors;

and

determining if the signals from each of the first plurality of motion detectors match a third predetermined pattern indicative of movement to the in-bed position.

5. The method of claim 4 wherein the third predetermined pattern comprises:

when the third motion detector is activated and the first motion detector or the second motion detector is activated within approximately twenty seconds of the third motion detector being activated, it is determined that the patient is returning to the first area under surveillance.

6. The method of claim 5 wherein the third predetermined pattern further comprises:

when the second motion detector is activated and then deactivated, and the first motion detector is activated for approximately five seconds after the second motion detector is deactivated, and the third motion detector is not activated, it is determined that the patient has returned to the bed.

7. The method of claim 1 further comprising the step of monitoring a door sensor proximate the first area under surveillance to ascertain if the patient has left the first area under surveillance.

8. The method of claim 2 further comprising the step of providing a notification if it is ascertained that the patient has left the first area under surveillance.

9. The method of claim 8 wherein the step of providing a notification if it is determined that the patient left the first area under surveillance comprises providing the ascertained location of the patient.

10. The method of claim 8 wherein the step of providing a notification if it is determined that the patient left the first area under surveillance comprises displaying the ascertained location of the patient on a console.

11. The method of claim 2 further comprising the steps of:

monitoring a second area under surveillance in the premises with a second plurality of motion detectors strategically located therein, the second area of surveillance being proximate the first area under surveillance; and

ascertaining a direction of movement by the patient by determining if the signals from each of the second plurality of motion detectors match a fourth predetermined pattern indicative of movement in the second area under surveillance.

12. The method of claim 11 comprising the step of selectively enabling and disabling a plurality of light fixtures strategically located throughout the premises in accordance with a predetermined lighting sequence.

13. The method of claim 11 wherein the second plurality of motion sensors are monitored only when it has been determined that the patient has left the first area under surveillance.

14. The method of claim 1 further comprising the steps of

locating a bed sensor with respect to a bed in the first area under surveillance, and

monitoring the bed sensor to ascertain if the patient has moved from the in-bed position.

15. The method of claim 1 wherein the step of providing a notification if it is determined that the patient has moved from the in-bed position comprises sounding an audible alarm.

16. The method of claim 1 wherein the step of providing a notification if it is determined that the patient has moved from the in-bed position comprises enunciating a spoken message via a strategically located speaker.

17. A system for monitoring a patient located in a premises, comprising

a plurality of motion detectors strategically located in a first area under surveillance in the premises, comprising a first motion detector located on a first wall of a bedroom at approximately the same height as a top surface of a bed in the bedroom, a second motion detector located approximately one foot above the floor of the bedroom along a side of the bed a patient using the bed normally leaves from, and a third motion detector located near a door of the bedroom;

a control panel comprising processing logic adapted to analyze signals received from the plurality of motion detectors indicative of motion as detected by the motion detectors and ascertain if a patient has moved from an in-bed position, wherein the processing logic comprises a first predetermined pattern indicative of movement from the in-bed position comprising when the second motion detector is activated, the first motion detector is not activated for approximately five seconds after the second motion detector is activated, and the third motion detector is not activated, it is determined that the patient has moved from the in-bed position; and

a notification device for providing a notification to a caregiver in the event that the processing logic determines that the patient has moved from the in-bed position.

18. The system of claim 17 wherein the processing logic is further adapted to ascertain if a patient has left the first area under surveillance by determining if the signals from each of the first plurality of motion detectors match a second predetermined pattern indicative of leaving the first area under surveillance.

19. The system of claim 18 wherein the second predetermined pattern further comprises:

when the third motion detector is activated, it is determined that the patient has left the first area under surveillance.

20. The system of claim 19 wherein the processing logic is further adapted to:

ascertain if the patient has returned to the bed by collecting signals from each of the first plurality of motion detectors; and

determine if the signals from each of the first plurality of motion detectors match a third predetermined pattern indicative of movement to the in-bed position.

21. The system of claim 20 wherein the third predetermined pattern comprises:

when the third motion detector is activated and the first motion detector or the second motion detector is activated within approximately twenty seconds of the third motion detector being activated, it is determined that the patient is returning to the first area under surveillance.

22. The system of claim 21 wherein the third predetermined pattern further comprises:

when the second motion detector is activated and then deactivated, and the first motion detector is activated for approximately five seconds after the second motion detector is deactivated, and the third motion detector is not activated, it is determined that the patient has returned to the bed.

23. The system of claim 17 further comprising a door sensor located proximate the door and adapted to determine if the door has been opened or closed, wherein the processing logic is further adapted to monitor the door sensor to ascertain if the patient has left the first area under surveillance.

24. The system of claim 18, wherein the processing logic is further adapted to cause the notification device to provide a notification if it is ascertained by the processing logic that the patient has left the first area under surveillance.

25. The system of claim 24 wherein the notification device provides the ascertained location of the patient.

26. The system of claim 24 wherein the notification device is a console that displays the ascertained location of the patient.

27. The system of claim 18 further comprising

a second plurality of motion detectors strategically located in a second area under surveillance in the premises;

the second area of surveillance being proximate the first area under surveillance; and

wherein

the processing logic is further adapted to analyze signals received from the second plurality of motion detectors to ascertain a direction of movement by the patient by determining if the signals from each of the second plurality of motion detectors match a fourth predetermined pattern indicative of movement in the second area under surveillance.

28. The system of claim 27 further comprising a plurality of light fixtures strategically located throughout the premises, wherein the processing logic is further adapted to selectively enable and disable said plurality of light fixtures in accordance with a predetermined lighting sequence.

29. The system of claim 27 wherein the second plurality of motion sensors are monitored only when it has been determined that the patient has left the first area under surveillance.

30. The system of claim 17 further comprising a bed sensor located with respect to a bed in the first area under surveillance, and wherein

the processing logic is further adapted to monitor the bed sensor to ascertain if the patient has moved from the in-bed position.

31. The system of claim 17 wherein the notification device is an audible alarm device.

32. The system of claim 17 wherein the notification device is a speaker for enunciating a spoken message.