Detection device to be installed on a road for detecting environmental conditions and monitoring and controlling traffic
First Claim
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1. Stationary detection device to be installed on a road for detecting environmental conditions and monitoring and controlling traffic, said stationary device comprising:
- sensor means including a CCD or CMOS matrix of optical sensors defining a sensitive area, said sensitive area being divided into a plurality of sub-areas, anda plurality of different optical systems respectively associated to a different ones of said different sub-areas of the sensor matrix, corresponding to different directions and/or fields of view by which the scene is seen by said different optical systems,so that different sub-areas carry-out different specific monitoring functions simultaneously,wherein at least a first sub-area and a respective first optical system monitor the traffic of the vehicles traveling along a road by observing queues of vehicles, accidents, obstacles or violations, whilst at least a second sub-area and a respective second optical system detect the presence of mist, fog and fog banks, and at least a third sub-area and a respective third optical system detect lighting; and
wherein the second optical system includes an emitter and receiver for respectively emitting and receiving an optical signal;
wherein the third sub-area of the sensor matrix dedicated to the lighting detection function is used to actuate a corresponding adjustment of emergency lights along a portion of the road wherein said stationary detection device has an optical window and wherein one of said sub-area of the sensor matrix is dedicated to detection of dirt on said optical window.
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Abstract
A system with a multifunctional integrated visual sensor using a CMOS or CCD technology matrix having a sensitive area divided into Sub-areas dedicated to a series of specific functions.
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Citations
31 Claims
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1. Stationary detection device to be installed on a road for detecting environmental conditions and monitoring and controlling traffic, said stationary device comprising:
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sensor means including a CCD or CMOS matrix of optical sensors defining a sensitive area, said sensitive area being divided into a plurality of sub-areas, and a plurality of different optical systems respectively associated to a different ones of said different sub-areas of the sensor matrix, corresponding to different directions and/or fields of view by which the scene is seen by said different optical systems, so that different sub-areas carry-out different specific monitoring functions simultaneously, wherein at least a first sub-area and a respective first optical system monitor the traffic of the vehicles traveling along a road by observing queues of vehicles, accidents, obstacles or violations, whilst at least a second sub-area and a respective second optical system detect the presence of mist, fog and fog banks, and at least a third sub-area and a respective third optical system detect lighting; and wherein the second optical system includes an emitter and receiver for respectively emitting and receiving an optical signal; wherein the third sub-area of the sensor matrix dedicated to the lighting detection function is used to actuate a corresponding adjustment of emergency lights along a portion of the road wherein said stationary detection device has an optical window and wherein one of said sub-area of the sensor matrix is dedicated to detection of dirt on said optical window. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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Specification