Light management system having networked intelligent luminaire managers with enhanced diagnostics capabilities
First Claim
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1. An intelligent luminaire manager, comprising:
- a voltage sensor for measuring a voltage provided to a luminaire;
a current senor for measuring a current provided to the luminaire;
a controller coupled to the voltage sensor and the current sensor; and
a luminaire diagnostic program stored in a memory of the controller,wherein the luminaire diagnostic program calculates real power for the luminaire and apparent power for the luminaire and generates a lamp cycling message if the calculated real power divided by the calculated apparent power is less than a first threshold value.
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Abstract
A network operation center for a light management system having networked intelligent luminaire managers. A plurality of networked luminaire managers, each collocated with a respective luminaire, monitor the status of their respective luminaires. The luminaire managers include transmitters for transmitting status information about their respective luminaires and third-party devices to a network server. The network server forwards the received status information from the networked luminaire managers to a computer of an owner/operator of the plurality of luminaires and/or a third-party user. The luminaire managers communicate with each other, whereby they form a network.
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Citations
29 Claims
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1. An intelligent luminaire manager, comprising:
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a voltage sensor for measuring a voltage provided to a luminaire; a current senor for measuring a current provided to the luminaire; a controller coupled to the voltage sensor and the current sensor; and a luminaire diagnostic program stored in a memory of the controller, wherein the luminaire diagnostic program calculates real power for the luminaire and apparent power for the luminaire and generates a lamp cycling message if the calculated real power divided by the calculated apparent power is less than a first threshold value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for monitoring and diagnosing a luminaire, comprising:
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measuring an AC voltage provided to a luminaire; measuring an AC current provided to the luminaire; calculating real power for the luminaire; calculating apparent power for the luminaire; and generating a lamp cycling message if calculated real power divided by calculated apparent power is less than a first threshold value. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. An intelligent luminaire manager, comprising:
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a controller coupled to a voltage sensor and a current sensor; a luminaire diagnostic program stored in a memory of the controller, wherein the luminaire diagnostic program calculates real power for a luminaire and apparent power for the luminaire, based on voltage and current measurements, and generates a lamp cycling message if the calculated real power divided by the calculated apparent power is less than a first threshold value; and an enclosure that houses the controller, the enclosure having a three-prong plug for attaching to a streetlight fixture. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
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Specification