Pool Cleaning System And Method To Automatically Clean Surfaces Of A Pool Using Images From A Camera

Patent No. US11003191 (titled "Pool Cleaning System And Method To Automatically Clean Surfaces Of A Pool Using Images From A Camera") was filed by Zodiac Pool Systems Llc on Jul 2, 2020.

What is this patent about?

’191 is related to the field of robotic pool cleaners. Traditionally, cleaning a swimming pool manually is a time-consuming task. Automated robotic pool cleaners have been developed to address this, but ensuring complete and satisfactory cleaning of all pool surfaces remains a challenge. This patent addresses the problem of effectively controlling and monitoring robotic pool cleaners to guarantee comprehensive cleaning.

The underlying idea behind ’191 is to use real-time visual feedback to guide the movement of a robotic pool cleaner. A camera mounted on the cleaner captures images of the pool floor. These images are then processed to determine the cleanliness of the area. Based on this cleanliness assessment, the cleaner is directed to move towards or away from specific areas, ensuring that all parts of the pool are adequately cleaned.

The claims of ’191 focus on a self-propelled pool cleaner equipped with a camera and a controller. The controller analyzes images captured by the camera to generate control signals. These signals then dictate the movement of the cleaner, directing it to areas that require cleaning or away from already clean areas. The claims also cover a system incorporating such a cleaner and a filter for collecting debris.

In practice, the pool cleaner moves around the pool, and the camera continuously feeds images to the controller. The controller uses image processing techniques to identify areas with debris or insufficient cleaning. The controller then sends commands to the drive system, steering the cleaner to those specific spots for targeted cleaning. This closed-loop feedback system ensures efficient and thorough cleaning of the entire pool surface.

This approach differs from prior solutions that rely on pre-programmed cleaning patterns or random movements. By using visual feedback, the cleaner can adapt to the specific conditions of the pool, such as varying levels of debris or uneven surfaces. This adaptive cleaning strategy ensures that no area is missed and that all surfaces are cleaned to a satisfactory level, regardless of the pool's shape or condition. The system can also present a visual map of the pool to the user, highlighting areas that have been cleaned and those that still need attention.

How does this patent fit in bigger picture?

Technical landscape at the time

In the early 2010s when ’191 was filed, automated systems commonly relied on embedded processors for real-time control, at a time when image processing for autonomous navigation was becoming more feasible due to improvements in camera technology and processing power. At that time, systems commonly relied on pre-programmed routines or basic sensor feedback rather than complex image analysis for decision-making, when hardware or software constraints made real-time image analysis and adaptive control non-trivial.

Novelty and Inventive Step

The examiner allowed the claims because the prior art, whether taken individually or in combination, did not disclose a pool cleaning system having a controller positioned on or in the body of the cleaner, in electronic communication with a camera, and configured to generate a control signal in response to captured images to cause movement of the body within the pool to or away from the submerged surface.

Claims

This patent contains 3 claims, all of which are independent (claims 1, 2, and 3). The independent claims are directed to self-propelled pool cleaners and systems that use cameras and controllers to navigate and clean submerged surfaces. There are no dependent claims.

Key Claim Terms New

Definitions of key terms used in the patent claims.

Term (Source)Support for SpecificationInterpretation
At least one camera
(Claim 1, Claim 2, Claim 3)
“The disadvantages heretofore associated with the prior art are overcome by the present invention of a pool cleaning system for cleaning debris from a submerged surface of a swimming pool comprising: a self-propelled pool cleaner having rotatably-mounted supports for supporting and guiding the cleaner on the pool surface; a filter configured to retain the debris collected from the submerged surface of the swimming pool; an electric motor for enabling the rotation of the rotatably-mounted supports on the pool surface; at least one camera to capture imagery of the pool surface; a controller, in electronic communication with the at least one camera, to determine a cleanliness characteristic of the pool surface on which the cleaner has passed based on the camera imagery and generate a control signal to direct movement of the cleaner based on the cleanliness characteristic of the pool surface; and a portable electronic device is configured to present a graphic on a display, the graphic depicting the submerged surface of the pool and those portions of the surface that remain uncleaned as the cleaner traverses the pool surface.”One or more cameras positioned on the pool cleaner to capture images of the submerged surface.
Control signal to cause movement
(Claim 1, Claim 2, Claim 3)
“The disadvantages heretofore associated with the prior art are overcome by the present invention of a pool cleaning system for cleaning debris from a submerged surface of a swimming pool comprising: a self-propelled pool cleaner having rotatably-mounted supports for supporting and guiding the cleaner on the pool surface; a filter configured to retain the debris collected from the submerged surface of the swimming pool; an electric motor for enabling the rotation of the rotatably-mounted supports on the pool surface; at least one camera to capture imagery of the pool surface; a controller, in electronic communication with the at least one camera, to determine a cleanliness characteristic of the pool surface on which the cleaner has passed based on the camera imagery and generate a control signal to direct movement of the cleaner based on the cleanliness characteristic of the pool surface; and a portable electronic device is configured to present a graphic on a display, the graphic depicting the submerged surface of the pool and those portions of the surface that remain uncleaned as the cleaner traverses the pool surface.”A signal generated by the controller that directs the movement of the pool cleaner's body within the swimming pool, based on the captured image from the camera.
Means for moving the vehicle body
(Claim 1, Claim 2, Claim 3)
“The disadvantages heretofore associated with the prior art are overcome by the present invention of a pool cleaning system for cleaning debris from a submerged surface of a swimming pool comprising: a self-propelled pool cleaner having rotatably-mounted supports for supporting and guiding the cleaner on the pool surface; a filter configured to retain the debris collected from the submerged surface of the swimming pool; an electric motor for enabling the rotation of the rotatably-mounted supports on the pool surface; at least one camera to capture imagery of the pool surface; a controller, in electronic communication with the at least one camera, to determine a cleanliness characteristic of the pool surface on which the cleaner has passed based on the camera imagery and generate a control signal to direct movement of the cleaner based on the cleanliness characteristic of the pool surface; and a portable electronic device is configured to present a graphic on a display, the graphic depicting the submerged surface of the pool and those portions of the surface that remain uncleaned as the cleaner traverses the pool surface.”Any component or combination of components that enables the self-propelled pool cleaner to move within the swimming pool.
Self-propelled pool cleaner
(Claim 1, Claim 2, Claim 3)
“The disadvantages heretofore associated with the prior art are overcome by the present invention of a pool cleaning system for cleaning debris from a submerged surface of a swimming pool comprising: a self-propelled pool cleaner having rotatably-mounted supports for supporting and guiding the cleaner on the pool surface; a filter configured to retain the debris collected from the submerged surface of the swimming pool; an electric motor for enabling the rotation of the rotatably-mounted supports on the pool surface; at least one camera to capture imagery of the pool surface; a controller, in electronic communication with the at least one camera, to determine a cleanliness characteristic of the pool surface on which the cleaner has passed based on the camera imagery and generate a control signal to direct movement of the cleaner based on the cleanliness characteristic of the pool surface; and a portable electronic device is configured to present a graphic on a display, the graphic depicting the submerged surface of the pool and those portions of the surface that remain uncleaned as the cleaner traverses the pool surface.”A device capable of autonomous movement within a swimming pool for the purpose of cleaning.
Submerged surface
(Claim 1, Claim 2, Claim 3)
“The disadvantages heretofore associated with the prior art are overcome by the present invention of a pool cleaning system for cleaning debris from a submerged surface of a swimming pool comprising: a self-propelled pool cleaner having rotatably-mounted supports for supporting and guiding the cleaner on the pool surface; a filter configured to retain the debris collected from the submerged surface of the swimming pool; an electric motor for enabling the rotation of the rotatably-mounted supports on the pool surface; at least one camera to capture imagery of the pool surface; a controller, in electronic communication with the at least one camera, to determine a cleanliness characteristic of the pool surface on which the cleaner has passed based on the camera imagery and generate a control signal to direct movement of the cleaner based on the cleanliness characteristic of the pool surface; and a portable electronic device is configured to present a graphic on a display, the graphic depicting the submerged surface of the pool and those portions of the surface that remain uncleaned as the cleaner traverses the pool surface.”The underwater surfaces of a swimming pool that are to be cleaned.

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US11003191

ZODIAC POOL SYSTEMS LLC
Application Number
US16919750
Filing Date
Jul 2, 2020
Status
Granted
Expiry Date
Jul 10, 2032
External Links
Slate, USPTO, Google Patents