System, a tool and method for communicating with a faulted circuit indicator using a remote display

• US 7,382,272 B2
• Filed: 10/19/2005
• Issued: 06/03/2008
• Est. Priority Date: 10/19/2005
• Status: Active Grant

• Current Assignee: Schweitzer Engineering Laboratories, Incorporated
• Original Assignee: Schweitzer Engineering Laboratories, Incorporated
• Inventors: Feight, Laurence V.
• Primary Examiner(s): Crosland; Donnie L.
• Application Number:
  US11/253,423
• Publication Number:
  US 20070085693A1
• Time in Patent Office: 958 Days
• Field of Search: 340/815.4
• US Class Current: 340/815.4
• CPC Class Codes: H04B 10/1141 One-way transmission
• CPC Class Codes: H04B 10/116 Visible light communication

Abstract

Provided is a system, a tool and a method for communicating with a faulted circuit indicator (FCI), the faulted circuit indicator including a detection circuit for monitoring an electrical conductor of a power system. The system includes a remote display mounted in a wall of an enclosure and visible from outside of the enclosure and a first light emitting diode associated with the remote display. The first light emitting diode generates an optical FCI status signal in response to an occurrence of a fault in the electrical conductor. The system also includes a first microcontroller operatively coupled to the remote display and the detection circuit, and a handheld user command tool adapted to optically couple with the remote display. The handheld user command tool is also adapted to generate an optical serial communication. The optical serial communication provides data and commands for operation of the faulted circuit indicator.

Claims

1. A system for communicating with a faulted circuit indicator (FCI), the system comprising:

a faulted circuit indicator including a detection circuit for monitoring an electrical conductor of a power system;

a remote display mounted in a wall of an enclosure and visible from outside of the enclosure;

a first light emitting diode associated with the remote display, the first light emitting diode generating an optical FCI status signal in response to an occurrence of a fault in the electrical conductor;

a first microcontroller operatively coupled to the remote display and the detection circuit; and

a handheld user command tool adapted to optically couple with the remote display and generate an optical serial communication, the optical serial communication providing data and commands for operation of the faulted circuit indicator.

2. The system of claim 1, further comprising an analog conditioning circuit operatively coupled to the remote display and the first microcontroller, the analog conditioning circuit configured to convert a serial voltage signal into a serial digital signal received by the first microcontroller, the serial voltage signal generated by the first light emitting diode in response to receipt of the optical serial communication.

3. The system of claim 1, wherein the optical FCI status signal comprises a flashing illumination pattern.

4. The system of claim 2, wherein the first microprocessor and a memory means operatively coupled to the first microprocessor, the first microprocessor having interrupt functionality to enable receipt of the serial digital signal between illuminations of the flashing illumination pattern.

5. The system of claim 2, further comprising a first power supply operatively coupled to the first microcontroller, the remote display, the detection circuit and the analog conditioning circuit.

6. The system of claim 5, wherein the faulted circuit indicator includes the detection circuit, the first microcontroller, the analog conditioning circuit and the first power supply.

7. The system of claim 1, wherein the light emitting diode is further adapted to provide the FCI optical status signal when the monitored current signal exceeds a trip threshold setting.

8. The system of claim 1, wherein the remote display further comprises a bolt configured to house the first light emitting diode and enable the optical FCI status signal to be visible from outside of the enclosure.

9. The system of claim 8, wherein the bolt is further configured to fit into a 7/16inch diameter hole in the wall of the enclosure.

10. The system of claim 8, wherein the bolt comprises a convex head including a translucent material enabling transmission of the optical FCI status signal and enabling receipt of the optical serial communication.

11. The system of claim 8, wherein the bolt comprises a metal injection molded stainless steel core with a polycarbonate overmold.

12. The system of claim 1, wherein the remote display comprises a bolt having a translucent head, and wherein the remote display is optically coupled to the first light emitting diode to enable the optical FCI status signal to be detected from outside of the enclosure.

13. The system of claim 1, wherein the optical serial communication is encoded.

14. The system of claim 1, wherein the handheld user command tool comprises:

a housing having a first end adapted for optical coupling with the remote display;

a second light emitting diode disposed at the first end of the housing;

an on/off means configured to enable and disable transmission of the optical serial communication;

a second power supply operatively coupled to the second light emitting diode; and

a second microcontroller operatively coupled to the second power supply, the second light emitting diode and the on/off means, the second microcontroller causing the second light emitting diode to generate the optical serial communication when an indication to enable transmission of the optical serial communication is received from the on/off means.

15. The system of claim 14, wherein the housing comprises a cylinder, and wherein a concave area is formed in the first end to enable the optical coupling with the remote display.

16. The system of claim 14, wherein the on/off means comprises a binary switch disposed on an outside portion of the handheld user command tool, a first position of the binary switch enabling transmission of the optical serial communication and a second position of the binary switch preventing transmission of the optical serial communication.

17. The system of claim 14, wherein the handheld user command tool further comprises a connector means, the connector means enabling communication between an intelligent computing device and the second microcontroller.

18. The system of claim 17, wherein the connector means is selected from the group consisting of a serial port, a parallel port and a universal serial bus connector.

19. The system of claim 14, wherein the handheld user command tool further comprises a transceiver assembly operatively coupled to the second microcontroller, the transceiver assembly enabling radio frequency communication between a radio frequency intelligent computing device and the second microcontroller.

20. The system of claim 14, wherein the handheld user command tool further comprises a photosensor disposed at the first end of the handheld user command tool and operatively coupled to the second microcontroller, the photosensor configured to receive illumination from the first light emitting diode.

21. The system of claim 20, wherein the handheld user command tool further comprises a connector means, the connector means enabling communication between an intelligent computing device and the second microcontroller.

22. The system of claim 21, wherein the connector means is selected from the group consisting of a serial port, a parallel port and a universal serial bus connector.

23. The system of claim 20, wherein the handheld user command tool further comprises a transceiver assembly operatively coupled to the second microcontroller, the transceiver assembly enabling radio frequency communication between a radio frequency intelligent computing device and the second microcontroller.

24. A handheld user command tool adapted to optically couple with a remote display, the handheld user tool comprising:

a housing having a first end adapted for optical coupling with the remote display, the remote display comprising;

association with a faulted circuit indicator monitoring an electrical conductor of a power system;

a first light emitting diode; and

,

mounting in a wall of an enclosure housing the faulted circuit indicator;

a second light emitting diode disposed at the first end of the housing;

an on/off means disposed on an outside portion of the housing;

a power supply operatively coupled to the second light emitting diode; and

a microcontroller operatively coupled to the power supply, the second light emitting diode and the on/off means, the microcontroller causing the second light emitting diode to generate an optical serial communication when an indication to enable transmission of the optical serial communication is received from the on/off means,

wherein the optical serial communication provides data and commands for operation of the faulted circuit indicator.

25. The handheld user command tool of claim 24, wherein the housing comprises a cylinder, and wherein a concave area is formed in the first end to enable the optical coupling with the remote display.

26. The handheld user command tool of claim 24, wherein the on/off means comprises a binary switch disposed on an outside portion of the handheld user command tool, a first position of the binary switch enabling transmission of the optical serial communication and a second position of the binary switch preventing transmission of the optical serial communication.

27. The handheld user command tool of claim 24, wherein the handheld user command tool further comprises a connector means, the connector means enabling communication between an intelligent computing device and the microcontroller.

28. The handheld user command tool of claim 27, wherein the connector means is selected from the group consisting of a serial port, a parallel port and a universal serial bus connector.

29. The handheld user command tool of claim 24, wherein the handheld user command tool further comprises a transceiver assembly operatively coupled to the microcontroller, the transceiver assembly enabling radio frequency communication between a radio frequency intelligent computing device and the microcontroller.

30. The handheld user command tool of claim 24, wherein the handheld user command tool further comprises a photosensor disposed at the first end of the handheld user command tool and operatively coupled to the microcontroller, the photosensor configured to receive illumination from the first light emitting diode of the remote display.

31. The handheld user command tool of claim 30, wherein the handheld user command tool further comprises a connector means, the connector means enabling communication between an intelligent computing device and the microcontroller.

32. The handheld user command tool of claim 31, wherein the connector means is selected from the group consisting of a serial port, a parallel port and a universal serial bus connector.

33. The handheld user command tool of claim 30, wherein the handheld user command tool further comprises a transceiver assembly operatively coupled to the microcontroller, the transceiver assembly enabling radio frequency communication between a radio frequency intelligent computing device and the microcontroller.

34. A method for communicating with a faulted circuit indicator, the method comprising:

providing a handheld user command tool including a second light emitting diode, the handheld user command tool adapted to optically couple with a remote display and generate an optical serial communication via the second light emitting diode, the optical serial communication providing at least one command for operation of the faulted circuit indicator;

detecting receipt of the optical serial communication from the faulted circuit indicator using the remote display operatively coupled to the faulted circuit indicator, the faulted circuit indicator housed in an enclosure and including a microcontroller, the remote display associated with a first light emitting diode and mounted in a wall of the enclosure;

validating a serial digital signal, the serial digital signal formed by digitizing the optical serial command; and

executing the at least one command represented by the serial digital signal.

35. The method of claim 34, wherein the handheld user command tool includes:

a housing having a first end adapted for optical coupling with the remote display, the second light emitting diode dispose at the first end;

an on/off means configured to enable and disable transmission of the optical serial communication; and

a second microcontroller operatively coupled to the second light emitting diode and the on/off means, the second microcontroller causing the second light emitting diode to generate the optical serial communication when an indication to enable transmission of the optical serial communication is received from the on/off means.

36. A method for communicating with a faulted circuit indicator, the method comprising:

providing a handheld user command tool including a second light emitting diode, the handheld user command tool adapted to optically couple with the remote display and generate an optical serial communication via the second light emitting diode, the optical serial communication providing data for operation of the faulted circuit indicator;

detecting receipt of the optical serial communication from the faulted circuit indicator using the remote display operatively coupled to the faulted circuit indicator, the faulted circuit indicator housed in an enclosure and including a microcontroller, the remote display associated with a first light emitting diode and mounted in a wall of the enclosure;

validating a serial digital signal, the serial digital signal formed by digitizing the optical serial command; and

utilizing the data represented by the serial digital signal.

37. The method of claim 36, wherein the handheld user command tool includes:

a housing having a first end adapted for optical coupling with the remote display, the second light emitting diode dispose at the first end;

an on/off means configured to enable and disable transmission of the optical serial communication; and

a second microcontroller operatively coupled to the second light emitting diode and the on/off means, the second microcontroller causing the second light emitting diode to generate the optical serial communication when an indication to enable transmission of the optical serial communication is received from the on/off means.