REMOTE MONITOR/CONTROL FOR BILLBOARD LIGHTING OR STANDBY POWER SYSTEM

• US 20100066484A1
• Filed: 09/15/2008
• Published: 03/18/2010
• Est. Priority Date: 09/15/2008
• Status: Active Grant

• Current Assignee: Commtiva Technology Corporation
• Original Assignee: Commtiva Technology Corporation
• Inventors: Hanwright, Martin James, Chen, Shih-Chiea
• Granted Patent: US 8,248,203 B2
• Time in Patent Office: Days
• US Class Current: 340/3.440
• CPC Class Codes: G06F 3/147 using display panels
• CPC Class Codes: G09G 2330/021 Power management, e.g. power saving
• CPC Class Codes: G09G 2360/144 the light being ambient light
• CPC Class Codes: G09G 2370/16 Use of wireless transmission of display information
• CPC Class Codes: G09G 2380/06 Remotely controlled electronic signs other than labels
• CPC Class Codes: H04L 12/40013 Details regarding a bus controller

Abstract

A lighting monitor/control system for remote billboards uses a cellular network to provide utility power and light status information to a central controller, which in response provides control signals to individual remote billboard lighting controllers for setting operating parameters such as multiple on/off times, lighting power adjustments for individual billboards, and custom lighting schedules based upon geographic and environmental considerations. Battery back-up is provided in the event of utility power outage with automatic reversion to utility power when restored. Immediate notification of failure of utility power or of individual lamp or ballast failure is provided by SMS messaging formatted so as to minimize the number of messages and reduce communications costs. The monitor/control system is also adapted for use in remote power monitoring applications to automatically switch to standby power (generator) in the absence of primary power and to return to primary power when restored.

Claims

1. A monitor/controller for use with a remote billboard lighting system including plural billboards each having plural display faces with respective associated sets of lights for illuminating said display faces, said monitor/controller comprising:

a utility power connection for providing utility power to the lights of a billboard;

plural sensors each coupled to a respective set of lights for providing plural output signals representing operating status of a set of lights;

plural relays each coupled to a respective set of lights;

at least one central controller operating in a wireless communications network;

a programmable signal processor coupled to said plural sensors and relays and in communication with said central controller via said wireless communications network for providing information to said central controller regarding the status of said sets of billboard lights, and for receiving and storing lighting operation commands from said at least one central controller and providing output signals to said relays for controlling the operation of each set of lights, in accordance with a predetermined schedule and the operating status of said sets of lights.

2. The monitor/controller of claim 1 further comprising a sensor input interface circuit coupled between said signal processor and said first sensors and responsive to said first output signals for providing light status information to said signal processor.

3. The monitor/controller of claim 2 wherein said light status information includes light operational status information, performance information, and fault condition information.

4. The monitor/controller of claim 1 further comprising a power control interface circuit coupled between said signal processor and said sets of lights and including said plural relays.

5. The monitor/controller of claim 4 wherein said power control interface circuit further includes a relay connector arrangement for coupling said plural relays to said signal processor.

6. The monitor/controller of claim 1 further comprising a backup power supply and a power management unit coupled to said signal processor for automatically coupling said backup power supply to said sets of lights when utility power is unavailable.

7. The monitor/controller of claim 6 wherein said backup power supply comprises a storage battery.

8. The monitor/controller of claim 7 wherein said power management unit includes a battery power control circuit coupled to said storage battery for maintaining the battery fully charged.

9. The monitor/controller of claim 8 further comprising a first visual display coupled to said battery power control circuit for providing a visual indication of the status of storage battery charge.

10. The monitor/controller of claim 9 wherein said first visual display comprises a light emitting diode (LED).

11. The monitor/controller of claim 6 further comprising a second visual display coupled to said power management unit for providing a visual indication of the availability of utility power.

12. The monitor/controller of claim 11 wherein said second visual display comprises an LED.

13. The monitor/controller of claim 8 wherein said monitor/controller terminates operation of the billboard lighting system in the absence of utility power if battery power is less than 20% of normal utility power.

14. The monitor/controller of claim 1 wherein said wireless communications network comprises a global system for mobile communication (GSM) network.

15. The monitor/controller of claim 14 further comprising a cellular module for interfacing with said GSM network.

16. The monitor/controller of claim 15 further comprising a SIM interface circuit for providing said monitor/controller with a unique identity in said GSM network.

17. The monitor/controller of claim 6 wherein power management unit includes a linear voltage regulator for regulating a first DC input voltage for use by first components of the lighting system to a second lower DC voltage for use by second components of said the lighting system.

18. The monitor/controller of claim 17 wherein said first DC input voltage is +6 VDC and said second lower DC voltage is +3 VDC.

19. The monitor/controller of claim 1 further comprising a signal processor connector coupled to said signal processor for allowing for re-programming of said signal processor.

20. The monitor/controller of claim 1 further comprising an electrically erasable programmable read only memory (EEPROM) coupled to said signal processor for storing monitor/controller operating information.

21. The monitor/controller of claim 20 wherein said operating information stored in said EEPROM includes monitor/controller configuration information, sensor measurement data, scheduled lighting on/off times, calibration reference values, tolerance values, and real time clock (RTC) information.

22. The monitor/controller of claim 1 wherein each of said plural sensors is a current sensor for sensing current level in a respective set of lights.

23. The monitor/controller of claim 1 wherein said signal processor includes a self-test program initiated upon start-up of said monitor/controller to test operation of said monitor/controller.

24. The monitor/controller of claim 23 wherein said test operation of said monitor/controller includes testing for receipt of a valid wireless signal and clearing of a buffer memory in said signal processor.

25. The monitor/controller of claim 24 further comprising at least one visual status indicator coupled to said signal processor for providing a visual indication of a failure of any portion of said operation test.

26. The monitor/controller of claim 1 wherein said signal processor includes a test and calibration program initiated during installation of the monitor/controller and including determination of maximum, minimum and average current in a respective circuit connected to each light after operation of the light has stabilized.

27. The monitor/controller of claim 26 where in the test and calibration program further includes determining and storing referenced calibration data for each respective circuit connected to each light after operation of the light has stabilized.

28. The monitor/controller of claim 27 wherein said signal processor further includes a program for storing a site history record based upon information determined and stored by said test and calibration program for each set of lights in each remote billboard.

29. The monitor/controller of claim 28 wherein said signal processor determines a reference tolerance curve comprising upper and lower tolerance limits for acceptable current level for each circuit connected to a respective light in each remote billboard.

30. The monitor/controller of claim 29 further comprising a video display coupled to said signal processor and responsive to the current in each light circuit for providing a visual indication of the current in each circuit connected to a respective light relative to the upper and lower tolerance limits of the current level for that particular circuit.

31. The monitor/controller of claim 30 wherein said visual indication is provided to said central controller via said wireless communications network.

32. The monitor/controller of claim 30 wherein said signal processor periodically updates the upper and lower tolerance limits to accommodate variation in operation arising from the age of lights and other components, the geographic location of said remote billboards, and environmental changes.

33. The monitor/controller of claim 1 further comprising a video display coupled to said signal processor for providing a visual alert indicating an out-of-tolerance operating state of said lighting system.

34. The monitor/controller of claim 1 further comprising a video display coupled to said signal processor for displaying a comparison of current lighting system operation with prior lighting system operation.

35. The monitor/controller of claim 1 further comprising input means for allowing an operator to deactivate the lights associated with a billboard face no longer in use.

36. The monitor/controller of claim 35 wherein said input means includes a video display screen coupled to said signal processor.

37. The monitor/controller of claim 36 wherein customer assigned billboard faces and unassigned billboard faces as well as individual identification indicia for the billboard faces is presented on said video display screen.

38. A monitor/controller arrangement for use with a remote standby power source for energizing a load center in the absence of utility power being provided to the load center, wherein said load center distributes utility power, said monitor/controller arrangement comprising:

a utility power connection for providing utility power to the load center;

a first sensor coupled between said utility power connection and the load center for detecting a first voltage between said utility power connection and the load center and providing a first output signal representing said first voltage;

an automatic transfer switch connected to the load center and responsive to a loss of utility power, said automatic transfer switch further coupled to the standby power source;

a second sensor coupled between the load center and said automatic transfer switch for detecting a second voltage between the load center and said automatic transfer switch and providing a second output signal representing said second voltage;

a third sensor coupled to said standby power source for providing a third output signal representing the status of the standby power source;

at least one central controller operating in a wireless communications network; and

a programmable signal processor coupled to said first, second and third sensors and responsive to said first, second and third output signals and further coupled to said automatic transfer switch, and wherein said signal processor is in communication with said central controller via said wireless communications network for providing information to said central controller regarding the status of utility power and the operation of the load center and the standby power source.

39. The monitor/controller arrangement of claim 38 wherein said first output signal represents the absence of utility power, and in response to receipt of said first output signal said signal processor provides an alert signal to an operator.

40. The monitor/controller arrangement of claim 39 wherein said automatic transfer switch includes an internal controller for monitoring utility power and the standby power source for disconnecting the load center from utility power and connecting the standby power source to the load center in the absence of utility power.

41. The monitor/controller arrangement of claim 39 wherein said second output signal represents the absence of an output from the load center, whereupon said automatic transfer switch disconnects utility power from the load center, and connects the standby power source to the load center in the absence of utility power.

42. The monitor/controller arrangement of claim 38 wherein said third sensor is coupled between said automatic transfer switch and the standby power source, and wherein said third sensor detects a third voltage between said automatic transfer switch and the standby power source and provides a third output signal to said signal processor representing the status of the standby power source.

43. The monitor/controller arrangement of claim 38 further comprising an output device coupled to the load sensor and energized by utility power.

44. The monitor/controller arrangement of claim 43 wherein said output device is energized by the standby power source via said load sensor in the absence of utility power.

45. The monitor/controller arrangement of claim 44 wherein said standby power source is a generator.

46. The monitor/controller arrangement of claim 45 wherein said output device is a sump pump.

47. The monitor/controller arrangement of claim 46 further comprising a fourth sensor coupled between said output device and the load center and further coupled to said signal processor for providing a fourth output signal to said signal processor representing operation of the output device.

48. The monitor/controller arrangement of claim 47 wherein said sump pump is disposed in a pit and said fourth sensor monitors water level in the sump pump pit.

49. The monitor/controller arrangement of claim 38 wherein said load center is a home load center receiving on the order of 200 amps utility power.

50. The monitor/controller arrangement of claim 38 wherein said at least one central controller compromises a personal computer, a cell phone or a hand-held device.

51. The monitor/controller arrangement of claim 38 further comprising a server coupling said at least one central controller to said wireless communications network.

52. The monitor/controller arrangement of claim 38 wherein said wireless communications network is a GSM network.

53. The monitor/controller arrangement of claim 52 further comprising a cellular module for interfacing with said GSM network.

54. The monitor/controller arrangement of claim 53 further comprising a SIM interface circuit for providing said monitor/controller arrangement with the unique identity in said GSM network.

55. The monitor/controller arrangement of claim 38 wherein said automatic transfer switch automatically tests the operation of the standby power source at predetermined time intervals.

56. The monitor/controller arrangement of claim 55 wherein said predetermined time intervals are 7 days or 14 days.

57. The monitor/controller arrangement of claim 55 wherein said automatic transfer switch includes an internal controller programmed to automatically test the operation of the standby power source at predetermined time intervals.

58. The monitor/controller arrangement of claim 38 wherein said load center is a residential home and includes first and second on the order of 100 amp connections, and wherein said first sensor is coupled to said first and second connections for detecting the voltage therein.

59. The monitor/controller arrangement of claim 38 further comprising plural visual indicators coupled to said signal processor for providing visual indications of the operational status, performance and fault conditions of the monitor/controller arrangement and the various components thereof.

60. The monitor/controller arrangement of claim 59 wherein said visual indicators are LEDs.

61. The monitor/controller arrangement of claim 60 wherein said visual indications are provided to said central controller via said wireless communications network.

62. The monitor/controller arrangement of claim 38 wherein said signal processor includes a self-test program initiated upon start-up of said monitor/controller arrangement to test operation of said monitor/controller arrangement.

63. The monitor/controller arrangement of claim 62 wherein the test of operation of said monitor/controller arrangement includes testing for receipt of a valid wireless signal and clearing of a buffer memory in said signal processor.

64. The monitor/controller arrangement of claim 63 further comprising at least one visual status indicator coupled to said signal processor for providing a visual indication of a failure of any portion of the test of operation of said monitor/controller arrangement.

65. The monitor/controller arrangement of claim 38 further comprising a storage battery for initiating operation of the stand-by power source.

66. The monitor/controller arrangement of claim 65 further comprising a battery powered control circuit coupled to said storage battery for maintaining the battery fully charged.

67. The monitor/controller arrangement of claim 66 further comprising a visual display coupled to said battery control circuit for providing a visual indication of the status of storage battery charge.