Devices, systems, and methods for maintaining light intensity in a gateway based lighting system
First Claim
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1. A system for controlling a lumen level of a luminaire, comprising:
- a gateway configured to control at least one of a dimming level and a dimming control protocol of at least one of a first luminaire and a second luminaire;
a sensor subsystem in data communication with the gateway; and
,a server in data communication with at least one of the gateway and the sensor subsystem,wherein the sensor subsystem is configured to measure a current lumen level of the first luminaire and communicate the current lumen level of the first luminaire to the server if the current lumen level of the first luminaire is outside of an expected lumen level range that is expected by the system, based at least in part on a first relationship determined by a comparison of a correlation between the current lumen level of the first luminaire and a current dimming level of the first luminaire and a correlation between a previous lumen level of the first luminaire and a previous dimming level of the first luminaire,wherein the sensor subsystem is further configured to measure a current lumen level of the second luminaire and communicate the current lumen level of the second luminaire to the server if the current lumen level of the second luminaire is outside of the expected lumen level range that is expected by the system, based at least in part on a second relationship determined by a comparison of a correlation between the current lumen level of the second luminaire and a current dimming level of the second luminaire and a correlation between a previous lumen level of the second luminaire and a previous dimming level of the second luminaire, furtherwherein the server is configured to correlate the first relationship and the second relationship to an overall lumen level of an illuminated environment in which the first luminaire and the second luminaire are installed and to determine whether at least one of the current dimming level of the first luminaire, the current dimming level of the second luminaire, a current dimming control protocol of the first luminaire, anda current dimming control protocol of the second luminaire must be adjusted to generate a particular overall lumen level, based at least in part on the correlation between the first relationship and the second relationship to the overall lumen level, and, if so, instruct the gateway to adjust the at least one of the current dimming level of the first luminaire, the current dimming level of the second luminaire, the current dimming control protocol of the first luminaire, and the current dimming control protocol of the second luminaire to achieve the particular overall lumen level, andthe gateway is configured to adjust the at least one of the current dimming level of the first luminaire, the current dimming level of the second luminaire, the current dimming control protocol of the first luminaire, and the current dimming control protocol of the second luminaire according to the instructions from the server.
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Abstract
The disclosure relates to devices, systems, and methods to set, adjust, and/or maintain lumen levels of luminaires in a lighting system, for example. The lights may be a plurality of Light Emitting Diode (LED)-based luminaires, which are part of a smart illumination system. In certain exemplary embodiments, sensor subsystems detect degradation of luminaire lumen levels and servers/gateways are used to adjust dimming controls to reestablish proper lumen levels and predict a half-life or end of life for the luminaires.
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Citations
15 Claims
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1. A system for controlling a lumen level of a luminaire, comprising:
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a gateway configured to control at least one of a dimming level and a dimming control protocol of at least one of a first luminaire and a second luminaire; a sensor subsystem in data communication with the gateway; and
,a server in data communication with at least one of the gateway and the sensor subsystem, wherein the sensor subsystem is configured to measure a current lumen level of the first luminaire and communicate the current lumen level of the first luminaire to the server if the current lumen level of the first luminaire is outside of an expected lumen level range that is expected by the system, based at least in part on a first relationship determined by a comparison of a correlation between the current lumen level of the first luminaire and a current dimming level of the first luminaire and a correlation between a previous lumen level of the first luminaire and a previous dimming level of the first luminaire, wherein the sensor subsystem is further configured to measure a current lumen level of the second luminaire and communicate the current lumen level of the second luminaire to the server if the current lumen level of the second luminaire is outside of the expected lumen level range that is expected by the system, based at least in part on a second relationship determined by a comparison of a correlation between the current lumen level of the second luminaire and a current dimming level of the second luminaire and a correlation between a previous lumen level of the second luminaire and a previous dimming level of the second luminaire, further wherein the server is configured to correlate the first relationship and the second relationship to an overall lumen level of an illuminated environment in which the first luminaire and the second luminaire are installed and to determine whether at least one of the current dimming level of the first luminaire, the current dimming level of the second luminaire, a current dimming control protocol of the first luminaire, and a current dimming control protocol of the second luminaire must be adjusted to generate a particular overall lumen level, based at least in part on the correlation between the first relationship and the second relationship to the overall lumen level, and, if so, instruct the gateway to adjust the at least one of the current dimming level of the first luminaire, the current dimming level of the second luminaire, the current dimming control protocol of the first luminaire, and the current dimming control protocol of the second luminaire to achieve the particular overall lumen level, and the gateway is configured to adjust the at least one of the current dimming level of the first luminaire, the current dimming level of the second luminaire, the current dimming control protocol of the first luminaire, and the current dimming control protocol of the second luminaire according to the instructions from the server. - View Dependent Claims (2, 3, 4, 5, 6, 12, 13)
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7. A method for controlling a lumen level of a luminaire, comprising:
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measuring with a sensor subsystem a current lumen level of a first luminaire and a current lumen level of a second luminaire; transmitting the current lumen level of the first luminaire or the current lumen level of the second luminaire to a server in data communication with at least one of a gateway and the sensor subsystem, if the corresponding current lumen level of the first luminaire or current lumen level of the second luminaire is outside of an expected lumen level range that is expected by the sensor subsystem, based at least in part on a first relationship determined by a comparison of a correlation between the current lumen level of the first luminaire and a current dimming level of the first luminaire and a correlation between a previous lumen level of the first luminaire and a previous dimming level of the first luminaire, and a second relationship determined by a comparison of a correlation between the current lumen level of the second luminaire and a current dimming level of the second luminaire and a correlation between a previous lumen level of the second luminaire and a previous dimming level of the second luminaire; correlating the first relationship and the second relationship to an overall lumen level of an illuminated environment in which the first luminaire and the second luminaire are installed; determining with the server whether at least one of the current dimming level of the first luminaire, the current dimming level of the second luminaire, a current dimming control protocol of the first luminaire, and a current dimming control protocol of the second luminaire must be adjusted to generate a particular overall lumen level, based at least in part on the correlation between the first relationship and the second relationship to the overall lumen level, and, if so, instructing the gateway, by the server, to adjust the at least one of the current dimming level of the first luminaire, the current dimming level of the second luminaire, the current dimming control protocol of the first luminaire, and the current dimming control protocol of the second luminaire to achieve the particular overall lumen level; and
,adjusting with the gateway the at least one of the current dimming level of the first luminaire, the current dimming level of the second luminaire, the current dimming control protocol of the first luminaire, and the current dimming control protocol of the second luminaire according to the instructions from the server. - View Dependent Claims (8, 9, 10, 11, 14, 15)
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Specification