IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0828495
(2010-07-01)
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등록번호 |
US-8754589
(2014-06-17)
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발명자
/ 주소 |
- Chemel, Brian J.
- Piepgras, Colin
- Kondo, Steve T.
- Johnston, Scott D.
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출원인 / 주소 |
- Digtial Lumens Incorporated
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대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
18 인용 특허 :
271 |
초록
▼
In embodiments of the present invention, a method and system is provided for designing improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with one or more of rotatable LED light bars, integrated sensors, onboard intelligence to receive signals from
In embodiments of the present invention, a method and system is provided for designing improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with one or more of rotatable LED light bars, integrated sensors, onboard intelligence to receive signals from the LED light bars and control the LED light bars, and a mesh network connectivity to other fixtures.
대표청구항
▼
1. A method of providing variable lighting for an environment with a plurality of light-emitting diode (LED) light bars, the method comprising: A) powering the plurality of LED light bars with a power management unit in accordance with a set of stored rules, wherein the set of stored rules comprises
1. A method of providing variable lighting for an environment with a plurality of light-emitting diode (LED) light bars, the method comprising: A) powering the plurality of LED light bars with a power management unit in accordance with a set of stored rules, wherein the set of stored rules comprises at least one rule that provides a light level of the variable lighting corresponding to at least one condition of the environment;B) determining a temperature associated with at least one of the plurality of LED light bars;C) assessing the temperature according to the at least one rule in the set of stored rules; andD) adjusting a lighting power management parameter based on the assessment of the temperature according to the at least one rule and on a model of luminous efficacy of the plurality of LED light bars, the model of luminous efficacy representing a light output of the plurality of LED light bars as a function of input power and temperature. 2. The method of claim 1, wherein at least one rule in the set of stored rules comprises thermal constraint information about the plurality of LED light bars. 3. The method of claim 1, wherein the temperature associated with the at least one of the plurality of LED light bars is a temperature of the plurality of LED light bars. 4. The method of claim 1, wherein the temperature associated with the at least one of the plurality of LED light bars is an ambient temperature of the environment. 5. The method of claim 4, wherein C) further comprises: C1) estimating an operating temperature of the plurality of LED light bars based on at least one of the ambient temperature, a drive current of the plurality of LED light bars, a voltage of the plurality of LED light bars, and one or more thermal characteristics of the plurality of LED light bars. 6. The method of claim 1, wherein B) comprises sensing body heat. 7. The method of claim 1, wherein C) further comprises: C2) evaluating the temperature associated with the lighting plurality of LED light bars according to a model of an efficiency of the plurality of LED light bars as a function of temperature. 8. The method of claim 1, further comprising: E) controlling the variable lighting provided by the plurality of LED light bars based on the assessment of the temperature according to the at least one rule. 9. The method of claim 8, wherein E) comprises signaling to indicate an alarm event. 10. The method of claim 9, wherein signaling to indicate the alarm event includes indicating a path via at least one of the plurality of LED light bars and at least one illuminating indicator. 11. The method of claim 1, further comprising: F) communicating at least one of the temperature associated with the at least one of the plurality of LED light bars and the assessment of the temperature to an external device and/or system. 12. The method of claim 1, further comprising: G) triggering heat dissipation from the plurality of LED light bars if the assessment indicates an increase in the temperature associated with the at least one of the plurality of LED light bars. 13. A lighting apparatus comprising: a thermal sensor to sense a temperature associated with a light-emitting diode (LED) lighting module;a power management module (PMM) mechanically operably coupled to the thermal sensor, wherein the PMM includes: a memory to store a set of stored rules and a model of luminous efficacy of the LED lighting module, wherein the set of stored rules comprises at least one rule that provides a light level of the LED lighting module corresponding to at least one of the one or more conditions of the environment and the model of luminous efficacy represents a light output of the LED lighting module as a function of input power and temperature; anda processor to perform an assessment of the temperature associated with the LED lighting module according to the at least one rule in the set of stored rules and the model of luminous efficacy and to adjust a lighting power management parameter based on the assessment of the temperature according to the at least one rule. 14. The lighting apparatus of claim 13, wherein the thermal sensor detects body heat. 15. The lighting apparatus of claim 13, wherein the temperature associated with the LED lighting module is a temperature of the LED lighting module. 16. The lighting apparatus of claim 13, wherein the temperature associated with the LED lighting module is an ambient temperature of the environment. 17. The lighting apparatus of claim 16, wherein the processor performs the assessment by estimating an operating temperature of the LED lighting module based on at least one of the ambient temperature, a drive current of the LED lighting module, a voltage of the LED lighting module, and one or more thermal characteristics of the LED lighting module. 18. The lighting apparatus of claim 13, wherein at least one rule in the set of stored rules comprises thermal constraint information about the LED lighting module. 19. The lighting apparatus of claim 13, wherein the processor performs the assessment by evaluating the temperature associated with the LED lighting module according to a model of the efficiency of at least one LED in the LED lighting module as a function of temperature. 20. The lighting apparatus of claim 13, wherein the processor signals the LED lighting module to indicate an alarm event. 21. The lighting apparatus of claim 20, wherein signaling to indicate the alarm event includes indicating a path via at least one of the LED lighting module and at least one illuminating indicator. 22. The lighting apparatus of claim 13, further comprising: at least one LED within the LED lighting module to provide variable lighting to the environment, andwherein the processor is further configured to control the at least one LED based in part on at least one of the set of stored rules, the assessment of the temperature according to the at least one rule, and the lighting power management parameter. 23. The lighting apparatus of claim 13, further comprising: an interface, operably coupled to the processor, to communicate at least one of the temperature associated with the LED lighting module and the assessment of the temperature to an external device and/or system. 24. The lighting apparatus of claim 13, further comprising: a thermal management module to regulate a temperature of the LED lighting module. 25. The lighting apparatus of claim 24, wherein the thermal management module comprises: at least one of an active cooling component and a passive cooling component to cool the LED lighting module, andwherein at least one of the processor and the thermal management module triggers cooling of the LED lighting module if the assessment indicates an increase in the temperature associated with the LED lighting module. 26. A lighting apparatus comprising: a thermal sensor to sense a temperature associated with a light-emitting diode (LED) lighting module;a power management module (PMM) operably coupled to the thermal sensor, wherein the PMM includes: a memory to store a model of luminous efficacy of the LED lighting module, the model of luminous efficacy representing a light output of the LED lighting module as a function of input power and temperature; anda processor to perform an assessment of the temperature associated with the LED lighting module according to the model of luminous efficacy of the LED lighting module and to adjust a lighting power management parameter based on the assessment of the temperature according to the model of the efficiency of the LED lighting module; andan interface, operably coupled to at least one of the thermal sensor and the PMM, to communicate at least one of the temperature associated with the LED lighting module, the assessment of the temperature, and the lighting power management parameter to an external device and/or system. 27. The method of claim 1, wherein the at least one LED light bar comprises at least one LED having a luminous efficacy that varies as a function of operating current. 28. The method of claim 1, wherein A) further comprises powering the at least one LED light bar at an operating current below a rated maximum operating current of the at least one LED light bar so as to operate the at least one LED light bar at a peak luminous efficacy. 29. The method of claim 1, wherein D) further comprises adjusting the at least one lighting management parameter so as to maximize a luminous efficacy of the at least one LED light bar over a given period. 30. The lighting apparatus of claim 13, wherein the at least one LED light bar comprises at least one LED having a luminous efficacy that varies as a function of operating current. 31. The lighting apparatus of claim 13, wherein a peak luminous efficacy of the at least one LED occurs at an operating current below a rated maximum operating current of the at least one LED. 32. The lighting apparatus of claim 13, wherein the PMM is configured to maximize a luminous efficacy of the at least one LED light bar over a given period.
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