Smoke detection device, method for detecting smoke from a fire, and computer program
AssigneeRobert Bosch GmbH
InventorAnton Stadler
Life of this patent
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Abstract
The invention relates to a smoke detection device (1) for detecting smoke (7) from a fire (6) in a monitoring area (3), comprising a camera interface (8) for receiving an image sequence having chronologically successive individual images from a monitoring camera (2), wherein the individual images (4) show the monitoring area (3), and comprising an evaluating device (9) for detecting at least one moving object in the monitoring area (3), wherein the evaluating device (9) is designed to detect a motion of the at least one moving object from at least two individual images (4) of the image sequence (5), characterized by a filter device (10) for distinguishing the moving object as smoke (7) or as a non-smoke object on the basis of the motion of the moving object.
Claims12
A smoke detection device (1) for detecting smoke (7) from a fire (6) in a monitoring area (3), the smoke detection device comprising:
- a camera interface (8) for accepting an image sequence having temporally successive individual images from a monitoring camera (2), wherein the individual images (4) show the monitoring area (3),
- an evaluation device (9) for determining at least one moving object in the monitoring area (3), wherein the evaluation device (9) is designed to determine a movement of the at least one moving object from at least two individual images (4) in the image sequence (5), and
- a filter device (10) for distinguishing the moving object as smoke (7) or a non-smoke object on the basis of the movement of the moving object,
- wherein the evaluation device (9) comprises a speed measuring unit for determining a speed vF of the average optical flow (16) of the moving object and for determining a speed vG of a contour area (17) of the moving object.
A The smoke detection device (1) for detecting smoke (7) from a fire (6) in a monitoring area (3), the smoke detection device comprising:
- a camera interface (8) for accepting an image sequence having temporally successive individual images from a monitoring camera (2), wherein the individual images (4) show the monitoring area (3),
- an evaluation device (9) for determining at least one moving object in the monitoring area (3), wherein the evaluation device (9) is designed to determine a movement of the at least one moving object from at least two individual images (4) in the image sequence (5), and
- a filter device (10) for distinguishing the moving object as smoke (7) or a non-smoke object on the basis of the movement of the moving object,
- wherein the filter device (10) comprises a turbulence analysis unit (12) for distinguishing the moving object as smoke (7) and a non-smoke object on the basis of turbulence in the moving object.
A smoke detection device (1) for detecting smoke (7) from a fire (6) in a monitoring area (3), the smoke detection device comprising:
- a camera interface (8) for accepting an image sequence having temporally successive individual images from a monitoring camera (2), wherein the individual images (4) show the monitoring area (3),
- an evaluation device (9) for determining at least one moving object in the monitoring area (3), wherein the evaluation device (9) is designed to determine a movement of the at least one moving object from at least two individual images (4) in the image sequence (5), and
- a filter device (10) for distinguishing the moving object as smoke (7) or a non-smoke object on the basis of the movement of the moving object,
- wherein the filter device (10) comprises a turbulence analysis unit (12) for distinguishing the moving object as smoke (7) and a non-smoke object on the basis of turbulence in the moving object, and wherein the turbulence is vortices which are shown as temporally and spatially random variations in the individual images.
Dependencies are inferred from the claim text.