US Patent 11255722 Infrared cloud detector systems and methods

The present disclosure generally relates to infrared cloud detector systems and methods for detecting cloud cover conditions. The infrared cloud detector system comprises an infrared sensor, an ambient temperature sensor, and logic. The infrared sensor is configured to measure sky temperature based on infrared radiation received within its field-of-view. The ambient temperature sensor is configured to measure an ambient temperature. And the logic is configured to determine a cloud condition based on a difference between the measured sky temperature and the measured ambient temperature.