Predicative lighting control system

• US 20120146518A1
• Filed: 12/08/2011
• Published: 06/14/2012
• Est. Priority Date: 12/13/2010
• Status: Abandoned Application

• Current Assignee: Lumewave Inc. (Renesas Electronics Corporation), Regents of the University of California (University of California)
• Original Assignee: Regents of the University of California (University of California)
• Inventors: Graeber, Keith, Siminovitch, Michael, Keating, Mark, Papamichael, Kosta
• Application Number:
  US13/374,059
• Publication Number:
  US 20120146518A1
• Time in Patent Office: Days
• US Class Current: 315/153
• CPC Class Codes: H05B 47/11 by determining the brightness or colour temperature of ambient light
• CPC Class Codes: H05B 47/19 via wireless transmission
• CPC Class Codes: Y02B 20/40 Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

A light management system is disclosed. The light management system includes networked control modules and computer devices that utilize object detection and geographical location information to predict a direction and/or determine speed of an object along a pathway. Based on the predicted direction and/or determined speed of the object along the pathway, the control modules turn on lighting in advance of the arrival of the object along the pathway. The light management system preferably also provides light usages data or operation data to the one or more remote computer devices.

Claims

1. A light management system comprising a control module for controlling lighting based on detected motion or occupancy within a detection area of the control module along a pathway and for controlling the lighting when the detection area of the control module corresponds to a predicted direction of an object along the pathway based on the detected motion or occupancy from additional control modules positioned along the pathway.

2. The light management system of claim 1, wherein the control module comprises:

a) a sensor for detecting the motion or occupancy within the detection area;

b) a control circuit for controlling a load circuit electrically coupled to the lighting;

c) a micro-processor with software configured to instruct the control circuit to control the load circuit when the detection area of the control module corresponds to the predicted direction; and

d) a transducer for receiving detection signals from the additional control modules corresponding to the detected motion or occupancy within detection areas of the additional control modules and for transmitting detection signals to the additional control modules corresponding to the detected motion or occupancy within the detection area of the control module.

3. The light management system of claim 1, wherein the control module further comprises a coupling mechanism for attaching to a street light.

4. The light management system of claim 1, wherein the control module further comprises an ambient light sensor configured to control the lighting based on a detected level of ambient light.

5. The light management system of claim 1, wherein the control module further comprises a memory unit for storing light usage data.

6. The light management system of claim 1, wherein the control module is configured to be commissioned with a location address and wherein the control module broadcasts the location address and an operating status to remote computer device.

7. A light management system comprising a set of control modules, wherein the control modules detect an object within detection areas along a pathway and communicate locations of the detected object along the pathway to other control modules within the set of control modules and wherein at least one of the control modules predicts a direction of the object along the pathway based on the locations and controls the lighting along a pathway based on the predicated direction of the object.

8. The light management system of claim 7, wherein the control modules comprise:

a) a sensor for detecting the motion or occupancy;

b) a control circuit for controlling a load circuit electrically coupled to the lighting;

c) a micro-processor with software configured to instruct the control circuit to control the load circuit when the locations of the control modules within the set of control modules correspond to the predicted direction of the object along the pathway; and

d) a transducer for receiving and transmitting detection signals from and to other control modules within the set of control modules that is used to calculate the predicted direction of the object along the pathway.

9. The light management system of claim 8, wherein the control modules include a coupling mechanism for attaching street light fixture.

10. The light management system of claim 8, wherein the control modules include an ambient light sensor configured to control the lighting based on a detected level of ambient.

11. The light management system of claim 8, wherein the control modules include a memory unit for storing light usage data.

12. The light management system of claim 8, wherein the control modules are commissioned with location addresses broadcast the location addresses and operating status to remote computer device.

13. A method of managing lighting comprising:

a) determining locations of an object along a pathway;

b) predicting a direction along the pathway based on the determined locations of the object; and

c) turning on lighting for a period of time along the predicted direction of the pathway.

14. The method of claim 13, further comprising determining a speed of the object along the pathway and turning on the lighting in the direction along the pathway at a rate that corresponds to or exceeds the determined speed of the object along the pathway.

15. The method of claim 13, wherein determining the locations of the object along the pathway utilizes control modules that are electrically coupled to the lighting and configured to control the lighting along the pathway.

16. The method of claim 15, wherein each of the modules comprises:

a) a motion or occupancy sensor for determining the locations of the object along the pathway;

b) a control circuit for controlling a load circuit electrically coupled to the lighting along the pathway;

c) a micro-processor with software configured to instruct the control circuit to control the load circuit to turn on the lighting in the predicted direction along the pathway; and

d) a communication system for communicating operating instructions between the control modules.

17. The method of claim 16, wherein the communication system includes a radio transducer.

18. The method of claim 16, wherein the control modules further comprise an ambient light sensor configured control the lighting based on a detected level of ambient light along the pathway.

19. The method of claim 16, wherein the control modules further comprise a memory unit for storing light usage data.

20. The method of claim 16, wherein the control modules are configured to be commissioned with a location addresses with a remote computer device.