Proximity dead man interrupter, alarm and reporting system

• US 7,034,696 B2
• Filed: 09/30/2003
• Issued: 04/25/2006
• Est. Priority Date: 05/09/2003
• Status: Active Grant

• Current Assignee: Gregory Ehlers
• Original Assignee: Gregory Ehlers
• Inventors: Ehlers, Gregory
• Primary Examiner(s): TRIEU, VAN THANH
• Application Number:
  US10/674,621
• Publication Number:
  US 20040222891A1
• Time in Patent Office: 938 Days
• Field of Search: 340/506, 340/509, 340/539.11, 340/539.12, 340/539.13, 340/539.15, 340/539.19, 340/539.22, 340/539.23, 340/686.1, 340/686.6, 340/989, 340/993, 340/573.1, 340/573.5, 340/573.7, 600/509, 482/99
• US Class Current: 340/573.7
• CPC Class Codes: G08B 21/0211 Combination with medical sensor, e.g. for measuring heart rate, temperature
• CPC Class Codes: G08B 21/0213 System disabling if a separation threshold is exceeded disabling electrical appliances in case of unplugging G08B13/1409
• CPC Class Codes: G08B 21/0266 System arrangements wherein the object is to detect the exact distance between parent and child or surveyor and item
• CPC Class Codes: G08B 21/06 indicating a condition of sleep, e.g. anti-dozing alarms

Abstract

A system for controlling operation of a machine or process includes a control point and a remote node. The control point is located with respect to the machine or process. The remote node is located with respect to an operator of the machine or process for detecting a predetermined condition of the operator and responsively delivering a fault signal to the control point through a wireless communications channel.

Claims

1. A system, comprising:

a controller, responsive to an operator, for controlling operation of one of a machine or process;

a control point coupled to the controller and being located with respect to the one of a machine and process; and

,

a remote node located with respect to the operator of the one of a machine and process for detecting a predetermined condition of the operator and automatically delivering a fault signal to the control point through a wireless communications channel in response to detecting the predetermined condition of the operator, the controller for controlling operation of the one of the machine a process as a function of the presence or absence of the fault signal.

2. A system, as set forth in claim 1, wherein the controller generates an alarm in response to the signal.

3. A system, as set forth in claim 1, the control point for detecting a presence of the remote node.

4. A system, as set forth in claim 3, the predetermined condition being an absence of the remote node.

5. A system, as set forth in claim 4, where the absence of the remote node is defined by a predetermined distance.

6. A system, as set forth in claim 5, where the predetermined distance is programmable.

7. A system, as set forth in claim 3, the predetermined condition being the presence of the remote node.

8. A system, as set forth in claim 7, wherein the controller allows the one of a machine and process to be started in response to receiving the signal.

9. A system, as set forth in claim 7, further comprising a second node located with respect to a second operator for detecting a predetermined condition of the second operator and responsively delivering a second signal to the control point through the wireless communication channel, the controller allowing the one of a machine and process to be started in response to receiving the second signal.

10. A system, as set forth in claim 1, wherein the predetermined condition is related to a health of the operator.

11. A system, as set forth in claim 1, wherein the predetermined condition is related to the consciousness of the operator.

12. A system, as set forth in claim 1, wherein the predetermined condition is related to the attentiveness of the operator.

13. A system, as set forth in claim 1, wherein the remote node is embodied in one of a watch, pager, mobile telephone, pendant, vest, and uniform.

14. A system, as set forth in claim 1, wherein the remote node is embedded in a device worn or carried by the operator.

15. A system, as set forth in claim 14, the device operative to remotely control the one of a machine or process.

16. A system, as set forth in claim 14, the device for communicating with an external system, for monitoring a condition of the operator, and for reporting the condition to the external system.

17. A system, as set forth in claim 16, the condition including at least one of a health indicator and a position.

18. A system, as set forth in claim 1, where the remote node generates the signal at periodic times.

19. A system, as set forth in claim 1, wherein the remote nodes generates the signal in response to receiving a request signal from the control point.

20. A system, as set forth in claim 19, further comprising a position locating system coupled to the controller for determining a position of the one of a machine and process when the signal is received.

21. A system, as set forth in claim 20, wherein the controller generates a position signal in response to the determined position.

22. A system, as set forth in claim 20, wherein the position locating system includes a device worn by the operator.

23. A system, as set forth in claim 1, further comprising a position locating system for determining a position of the operator.

24. A system, as set forth in claim 23, the controller for generating an alarm in response to the signal, the alarm including the position of the operator.

25. A system, as set forth in claim 23, the controller for generating an alarm in response to the signal, the alarm including the position of the remote node.

26. A system, as set forth in claim 1, further comprising a position locating system for determining a position of the remote node.

27. A system, as set forth in claim 1, the remote nodes communicating with an external system.

28. A system, as set forth in claim 27, the external system comprising at least one of a monitoring system and reporting system.

29. A system, as set forth in claim 1, the remote node for detecting a predetermined condition of a second operator and responsively delivering a second signal to the control point through the wireless communications channel.

30. A system, as set forth in claim 1, further comprising a second remote node located with respect to one of the operator and a second operator, for detecting a predetermined condition of the one of the operator and a second operator and responsively delivering a second signal to the control point through the wireless communications channel.

31. A system, as set forth in claim 1, the control point being embodied in a recovery beacon.

32. A system, as set forth in claim 31, the system being utilized in a marine application, the recovery beacon being floatable.

33. A system, as set forth in claim 31, the recovery beacon being one of a floatable beacon, a life boat beacon or a raft beacon.

34. A system, as set forth in claim 31, further comprising a position locating system for determining a position of one of the remote node and the operator, the remote node for transmitting the position to the recovery beacon, the recovery beacon for storing a last known position as a function of the transmitted position.

35. A system, as set forth in claim 34, the recovery beacon for broadcasting the last known position.

36. A system, as set forth in claim 1, further comprising a second node located with respect to a second operator for detecting a predetermined condition of the second operator and responsively delivering a second signal to the control point through the wireless communication channel.

37. A system for controlling operation of one of a machine and process, comprising:

a control point located with respect to the one of a machine and process; and

,

a remote node located with respect to an operator of the one of a machine and process for detecting a predetermined condition of the operator and responsively delivering a fault signal to the control point through a wireless communications channel, wherein the predetermined condition is one of a health of the operator, consciousness of the operation, and attentiveness of the operator.