Streetlight monitoring and control
First Claim
Patent Images
1. A controller for a streetlight comprising:
- a lamp sensor mounted on an inside surface of the streetlight to sense a light level from a lamp of the streetlight;
a microcontroller coupled to the lamp sensor, wherein ambient light is received by the lamp sensor when the lamp is OFF to determine when to turn ON the lamp when the ambient light level falls to a sufficient level indicative that night is approaching, the lamp sensor being utilized to sense the light from the lamp when the lamp is ON.
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Abstract
A system and method for streetlight control is provided. A lamp sensor inside a reflector of the streetlight is utilized to detect the output of a lamp of the streetlight. During daytime periods when the lamp is OFF, the lamp sensor is utilized to act as a day/night sensor by detecting ambient light near the lamp. When the ambient light level falls below a sufficient level indicative that night is approaching the lamp is turned ON and the lamp sensor utilized to detect the lamp output of the streetlight.
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Citations
20 Claims
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1. A controller for a streetlight comprising:
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a lamp sensor mounted on an inside surface of the streetlight to sense a light level from a lamp of the streetlight; a microcontroller coupled to the lamp sensor, wherein ambient light is received by the lamp sensor when the lamp is OFF to determine when to turn ON the lamp when the ambient light level falls to a sufficient level indicative that night is approaching, the lamp sensor being utilized to sense the light from the lamp when the lamp is ON. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of streetlight control, the method comprising:
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determining an ambient light level detected by a lamp sensor positioned inside a reflector of the streetlight when a lamp is OFF, the lamp sensor providing a first signal, the lamp sensor primarily used to detect a lamp'"'"'s light output from inside the streetlight when the lamp is ON; and turning ON the lamp when the determined ambient light level falls to a sufficient level indicative that night is approaching. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification