System and method for monitoring alignment of a signal lamp

Abstract

A system for monitoring alignment of a signal lamp includes at least one sensor and threshold detection circuitry. The sensor is positioned about the signal lamp and is configured to measure at least one of azimuthal and elevational movement of the signal lamp and generate an electrical signal. The threshold detection circuitry is configured to receive signals representative of the azimuthal and elevational movement of the signal lamp from the sensor. The threshold detection circuitry determine a change in alignment of the signal lamp according to at least one of the azimuthal movement signals and the elevational movement signals.

Dependencies are inferred from the claim text.