Infra-red sensor assemblies with built-in test equipment
AssigneeGoodrich Corporation
InventorsRajkumar Sengodan, Thirunavukkarasu Ramalingam
Life of this patent
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Abstract
An infra-red sensor assembly may comprise a substrate and an infra-red transmitter electrically coupled to the substrate. An infra-red receiver may be electrically coupled to the substrate. A testing infra-red transmitter may be electrically coupled to the substrate. An infra-red transmission channel may optically couple the testing infra-red transmitter and the infra-red receiver.
Claims20
An infra-red sensor assembly, comprising:
- a substrate;
- a first infra-red transmitter electrically coupled to the substrate;
- an infra-red receiver electrically coupled to the substrate;
- a testing infra-red transmitter electrically coupled to the substrate;
- and
- an infra-red transmission channel optically coupling the testing infra-red transmitter and the infra-red receiver.
A power drive unit, comprising:
- an infra-red sensor assembly configured to detect objects located over the power drive unit, the infra-red sensor assembly, comprising:
- a substrate;
- a plurality of infra-red transmitters electrically coupled in series to the substrate;
- an infra-red receiver electrically coupled to the substrate;
- a testing infra-red transmitter electrically coupled to the substrate;
- and
- an infra-red transmission channel optically coupling the testing infra-red transmitter and the infra-red receiver.
An article of manufacture including a tangible, non-transitory computer-readable storage medium having instructions stored thereon for controlling an infra-red sensor assembly, wherein the instructions, in response to execution by a controller, cause the controller to perform operations comprising:
- receiving, by the controller, an initial power-on signal;
- performing, by the controller, a self-check of the infra-red sensor assembly in response to the initial power-on signal;
- and
- determining, by the controller, if a fault condition is present.
Dependencies are inferred from the claim text.