Monitoring system, wayside LED signal, and method for monitoring a wayside LED signal

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United States of America Patent

PATENT NO 11161532
APP PUB NO 20190185034A1
SERIAL NO

16310270

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Abstract

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A monitoring system for a light emitting diode (LED) signal (100) includes optical detectors (120) for measuring a light output of LEDs (112, 114), a first processing unit (124) in communication with the plurality of optical detectors (120) and configured to receive and process measurement data of the light output from the plurality of optical detectors (120), and a first switching element (130) operably coupled to the first processing unit (124). The first processing unit (124) is further configured to transmit a control signal based on the measurement data of the light output of the plurality of LEDs (112, 114) to the first switching element (130) to disconnect a reference load (150) by switching from a first state to a second state when the light output is less than a predefined threshold value, wherein the second state of the first switching element (130) is stored in a storage medium (148).

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Patent Owner(s)

Patent OwnerAddress
SIEMENS INDUSTRY INC100 TECHNOLOGY DRIVE ALPHARETTA GA 30005

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cowen, David Chippenham, GB 4 13
Smith, Jeffrey Chippenham, GB 263 2937

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