Method and apparatus for monitoring movements of an individual

• US 6,049,281 A
• Filed: 09/29/1998
• Issued: 04/11/2000
• Est. Priority Date: 09/29/1998
• Status: Expired due to Fees

• Current Assignee: Josef Osterweil
• Original Assignee: Josef Osterweil
• Inventors: Osterweil, Josef
• Primary Examiner(s): Wu, Daniel J.
• Assistant Examiner(s): TRIEU, VAN THANH
• Application Number:
  US09/162,147
• Time in Patent Office: 560 Days
• Field of Search: 340/552, 340/555, 340/556, 340/557, 340/565, 340/567, 340/573.1, 340/573.4, 340/573.7, 340/575, 348/154, 348/155, 348/169, 600/473, 600/534
• US Class Current: 340/573.4
• CPC Class Codes: A61B 5/002 Monitoring the patient using a local or closed circuit, e.g. in a room or building A61B5/0017 takes precedence
• CPC Class Codes: A61B 5/0022 Monitoring a patient using a global network, e.g. telephone networks, internet
• CPC Class Codes: A61B 5/1128 using image analysis A61B5/1127 takes precedence
• CPC Class Codes: A61B 5/7232 involving compression of the physiological signal, e.g. to extend the signal recording period
• CPC Class Codes: A61B 5/747 in case of emergency, i.e. alerting emergency services
• CPC Class Codes: G08B 21/22 responsive to presence or absence of persons

Abstract

Monitoring an individual to determine when the individual is likely to exit a supportive structure. An apparatus has an image capturing device that captures successive images of the monitored individual in the supportive structure. A processing device compares a current captured image to a previous image to detect predetermined characteristics of the monitored individual with respect to the supportive structure. An alarm is actuated when it is determined that the detected predetermined characteristics exceed predetermined threshold values for at least one of the predetermined characteristics.

Claims

1. An apparatus that determines when a monitored individual is likely to exit a supportive structure, comprising:

an image capturing device that captures successive images of the monitored individual in the supportive structure;

a processing device that processes said captured images to detect predetermined characteristics of the monitored individual with respect to the supportive structure, by comparing a current captured image to a previous image, said predetermined characteristics comprising at least one of a relative position, a velocity, and an acceleration of the monitored individual relative to the supportive structure; and

an alarm that is actuated when said processing device determines that said detected predetermined characteristics exceed predetermined threshold values for at least one of said predetermined characteristics.

2. The apparatus of claim 1, wherein said image capturing device detects at least one of visible light and infrared light emitted by the monitored individual and the supportive structure.

3. The apparatus of claim 1, wherein said image capturing device detects electromagnetic energy of a predetermined wavelength range emitted by the monitored individual and the supportive structure.

4. The apparatus of claim 1, further comprising an image signature database that stores each image captured by said image capturing device, a plurality of stored images being provided to said processing device, for analysis along with said captured image, to detect said predetermined characteristics.

5. The apparatus of claim 1, wherein said alarm is provided to a monitoring site remote from the monitored individual.

6. The apparatus of claim 1, further comprising an alarm inhibitor that enables a caretaker to render assistance to the monitored individual without actuating said alarm.

7. The apparatus of claim 6, wherein said alarm inhibitor is enabled by an actuation of a switch.

8. The apparatus of claim 7, wherein said actuation of said switch actuates a timer that prevents said alarm from being actuated for a predetermined period of time.

9. The apparatus of claim 6, wherein said alarm inhibitor comprises a transmitter that is in the possession of the caretaker, and a receiver that receives a signal transmitted by said transmitter.

10. The apparatus of claim 9, wherein said alarm is prevented from being actuated as long as said receiver receives said signal transmitted by said transmitter.

11. The apparatus of claim 1, wherein said alarm is prevented from being actuated as long as said image processor detects a second moving object proximate the monitored individual that is moving towards a center of said supportive structure.

12. The apparatus of claim 1, wherein said processing device utilizes an image recognition algorithm to determine at least one of position information and movement information of the monitored individual.

13. The apparatus of claim 1, further comprising a mobile alert device that is utilized by an individual distant from the monitored individual to be informed that the monitored individual is likely to exit the supportive structure.

14. The apparatus of claim 1, wherein said processing device is located at a location remote from the monitored individual.

15. The apparatus of claim 1, further comprising a visual device that provides a visual display of the monitored individual.

16. The apparatus of claim 15, further comprising a sequencing device that sequentially displays images of a plurality of monitored individuals on said visual device.

17. The apparatus of claim 15, further comprising a screen splitting device that enables images of a plurality of monitored individuals to be simultaneously displayed on said visual device.

18. The apparatus of claim 15, further comprising an information inserting device that superimposes information, associated with the monitored individual, on said visual display.

19. The apparatus of claim 1, further comprising a compressing device that compresses said captured image.

20. The apparatus of claim 19, wherein said captured image is digitally compressed.

21. The apparatus of claim 1, further comprising a communicating device that enables a person alerted to a possible exit situation by said alarm to communicate with said monitored individual.

22. An apparatus that determines when a monitored individual is likely to exit a supportive structure, comprising:

means for capturing successive images of the monitored individual in the supportive structure;

means for processing said captured images to detect predetermined characteristics of the monitored individual with respect to the supportive structure, by comparing a current captured image to a previous captured image, said predetermined characteristics comprising at least one of a relative position, a velocity, and an acceleration of the monitored individual relative to the supportive structure; and

means for indicating that the monitored individual is likely to exit the supportive structure when said processing means determines that said detected predetermined characteristics exceed predetermined threshold values for at least one of said predetermined characteristics.

23. The apparatus of claim 22, wherein said capturing means comprises a sensor that detects at least one of visible light and infrared light emitted by the monitored individual and the supportive structure.

24. The apparatus of claim 22, wherein said capturing means comprises a sensor that detects electromagnetic energy of a predetermined wavelength range emitted by the monitored individual and the supportive structure.

25. The apparatus of claim 22, further comprising means for inhibiting said indicating means when a caretaker renders assistance to the monitored individual.

26. The apparatus of claim 25, wherein said inhibiting means comprises a switch.

27. The apparatus of claim 26, further comprising a delay device that prevents said indicating means from indicating that the monitored individual is likely to exit the supportive structure for a predetermined period of time upon an actuation of said switch.

28. The apparatus of claim 25, wherein said inhibiting means comprises a transmitter that is in the possession of the caretaker, and a receiver that receives a signal transmitted by said transmitter.

29. The apparatus of claim 28, wherein said indicating means is prevented from indicating that the monitored individual is likely to exit the supportive structure as long as said receiver receives said signal transmitted by said transmitter.

30. The apparatus of claim 25, wherein said inhibiting means comprises a voice recognizing device.

31. The apparatus of claim 22, wherein said indicating means is prevented from indicating that the monitored individual is likely to exit the supportive structure as long as said processing means detects that a second moving object proximate the monitored individual is moving towards a center of said supportive structure.

32. The apparatus of claim 22, wherein said indicating means comprises at least one of an audible alarm and a visual alarm.

33. The apparatus of claim 22, further comprising means for remotely alerting an individual distant from the monitored individual that the monitored individual is likely to exit the supportive structure.

34. A method for determining when a monitored individual is likely to exit a supportive structure, comprising:

capturing successive images of the monitored individual in the supportive structure;

processing the captured images to detect predetermined characteristics of the monitored individual with respect to the supportive structure, by comparing a current captured image to a previous image; and

indicating that the monitored individual is likely to exit the supportive structure when it is determined that at least one predetermined characteristic exceeds a predetermined threshold value, wherein the processing of captured images analyzes the captured images to determine at least one of a relative position, a velocity, and an acceleration of the monitored individual relative to the supportive structure.

35. The method of claim 34, wherein the capturing of successive images comprises using an image capturing device.

36. The method of claim 34, wherein the indicating that the monitored individual is likely to exit the supportive structure comprises alerting an individual remote from the monitored individual.

37. An apparatus that determines when a monitored individual is likely to exit a supportive structure, comprising:

an image capturing device that captures successive images of the monitored individual in the supportive structure;

an image processing device that processes said captured images to detect at least one of a relative position, a velocity and an acceleration of the monitored individual with respect to the supportive structure, by comparing a current captured image to a previous image;

a motion threshold setting device that sets a predetermined characteristic for at least one of said relative position, said velocity and said acceleration of the monitored individual with respect to the supportive structure;

an alarm that is actuated when said at least one of said relative position, said velocity and said acceleration, detected by said image processing device, exceeds said predetermined characteristic; and

an alarm inhibitor that inhibits said alarm when a caretaker renders assistance to the monitored individual.

38. The apparatus of claim 37, wherein said alarm is actuated at a monitoring station.

39. The apparatus of claim 38, further comprising a monitoring station communicator that transmits at least one of image, status and control signals to a mobile alert device.

40. The apparatus of claim 38, further comprising a display unit, located at said monitoring station, that provides a visual indication of the monitored individual.

41. The apparatus of claim 40, further comprising a sequencing device that sequentially displays images of a plurality of monitored individuals on said display unit.

42. The apparatus of claim 40, further comprising a screen splitting device that enables images of a plurality of monitored individuals to be simultaneously displayed on said display unit.

43. The apparatus of claim 37, wherein said image capturing device detects visible light.

44. The apparatus of claim 37, wherein said image capturing device detects visible light and infrared light.

45. The apparatus of claim 37, further comprising an image signature database that stores each image captured by said image capturing device, a plurality of stored images being provided to said image processing device, along with a current captured image, to detect said at least one of said relative position, said velocity and said acceleration.

46. The apparatus of claim 37, wherein said alarm inhibitor comprises a switch.

47. The apparatus of claim 46, wherein said switch actuates a timer that prevents said alarm from being actuated for a predetermined period of time.

48. The apparatus of claim 46, wherein said switch comprises a pressure sensitive floor mat switch.

49. The apparatus of claim 46, wherein said switch comprises a sensor that detects floor deflection.

50. The apparatus of claim 37, wherein said alarm inhibitor comprises a transmitter associated with a caretaker, and a receiver that receives a signal transmitted by said transmitter.

51. The apparatus of claim 50, wherein said alarm inhibitor inhibits said alarm as long as said receiver receives said signal transmitted by said transmitter.

52. The apparatus of claim 37, wherein said alarm inhibitor inhibits said alarm as long as said image processing device detects a second moving object, proximate the monitored individual, moving towards a center of said supportive structure.

53. The apparatus of claim 37, wherein said alarm inhibitor comprises a voice recognizing device.

54. The apparatus of claim 37, further comprising an information inserting device that provides predetermined data related to the monitored individual.

55. The apparatus of claim 54, wherein said predetermined data comprises at least one of a name of the monitored individual and a location of the monitored individual.

56. The apparatus of claim 37, further comprising a compressing device that compresses said images captured by said image capturing device.

57. The apparatus of claim 56, wherein said captured images are digitally compressed.

58. The apparatus of claim 37, further comprising a communicating device that enables a person alerted to a possible exit situation, by said alarm, to communicate with said monitored individual.