Patent ID: 7105800

Claim:
A detection system for a marine vessel, comprising: a first electromagnetic radiation sensor which is sensitive to a first preselected range of wavelengths, said first electromagnetic radiation sensor being attachable to said marine vessel and directed toward a first target area to receive electromagnetic radiation from within said first target area, said first electromagnetic radiation sensor being configured to provide a first signal which is representative of electromagnetic radiation within said first preselected range of wavelengths emanating from within said first target area; a second electromagnetic radiation sensor which is sensitive to a second preselected range of wavelengths, said second electromagnetic radiation sensor being attachable to said marine vessel and directed toward a second target area to receive electromagnetic radiation from within said second target area, said second electromagnetic radiation sensor being configured to provide a second signal which is representative of electromagnetic radiation within said second preselected range of wavelengths emanating from within said second target area; and a processor connected in signal communication with said first and second electromagnetic radiation sensors and configured to receive said first and second signals, said processor being configured to respond to a preselected change in said first or second signals with a change in the operation of said marine vessel; wherein: said first electromagnetic radiation sensor is an infrared sensor sensing heat, including heat emanating from a warm blooded animal, including a human, on said body of water and including heat of reflected sunlight reflected from said body of water; said second electromagnetic radiation sensor is a visible light sensor sensing visible light in said reflected sunlight and preventing said change in operation of said marine vessel to minimize false triggering otherwise due to heat of reflected sunlight sensed by said infrared sensor.