IP Library Granted Patent US 11,033,780
Granted Patent B2
US 11,033,780 · App. 16/030,728 · Granted Jun 15, 2021

Autonomous tennis ball retrieval robot

Inventors: Rachel Natasha New (Palo Alto, CA); William Jiajun Wu (Palo Alto, CA)
A63B47/02G05D1/0246G05D2201/02
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Quick Facts
Patent No.
US 11,033,780
App. No.
16/030,728
Granted
Jun 15, 2021
Kind
B2
Abstract

An autonomous robot that collects tennis balls on a tennis court surface and transfers them into a tennis ball shooter.

Claims (23)

1. A method for collecting a plurality of tennis balls and transferring said plurality of tennis balls into a tennis ball shooter using an autonomous machine comprising:

a. providing, a tennis ball machine configured to collect tennis balls having:

a chassis, said chassis containing a four-wheel drive system, each wheel of said four-wheel drive system connected to an electric gearhead motor:

a pickup assembly attached to a front of said tennis ball collection machine, said pickup assembly comprising an intake roller extending across said front and an intake ramp, said pickup assembly configured to collect said tennis balls;

a storage assembly proximate said pickup assembly and configured to store said tennis balls via a receptacle;

a shooter frame within said storage assembly, said shooter frame configured to launch a tennis ball of said collected tennis balls;

said storage assembly having a ramp for a base, said ramp of said storage assembly angled from a top of said intake ramp to a base of said shooter frame, and at least one plate configured to funnel said collected tennis balls to an opening in said shooter frame,

b. providing a vision sensor mounted to said tennis ball machine configured to provide an image data stream to a processor mounted to said tennis ball machine,

c. operating said tennis ball machine on a level surface including:

locating said plurality of tennis balls on said level surface using said vision sensor,

navigating across said level surface to said plurality of tennis balls, collecting said plurality of tennis balls,

navigating across said level surface to said tennis ball shooter, and transferring said plurality of tennis balls into said tennis ball shooter.

2. A tennis ball collection machine configured for autonomously collecting tennis balls comprising:

a chassis, said chassis containing a four-wheel drive system, each wheel of said four-wheel drive system connected to an electric gearhead motor;

a pickup assembly attached to a front of said tennis ball collection machine, said pickup assembly comprising an intake roller extending across said front and an intake ramp, said pickup assembly configured to collect said tennis balls;

a storage assembly proximate said pickup assembly and configured to store said tennis balls via a receptacle;

a shooter frame within said storage assembly, said shooter frame configured to launch a tennis ball of said collected tennis balls;

said storage assembly having a ramp for a base, said ramp of said storage assembly angled from a top of said intake ramp to a base of said shooter frame, and at least one plate configured to funnel said collected tennis balls to an opening in said shooter frame.

3. The machine of claim 2 wherein the four-wheel drive system is controlled directly via remote control through an electronic device.

4. The machine of claim 2 wherein at least one vision sensor is arranged to provide an image data stream allowing said machine to locate and navigate to a plurality of tennis balls.

5. The machine of claim 2 wherein at least one vision sensor is arranged to provide an image data stream allowing said machine to locate and navigate to a tennis ball shooter.

6. The machine of claim 2 wherein at least one vision sensor is arranged to provide an image data stream allowing said machine to locate and navigate around people.

7. The machine of claim 2 wherein at least one vision sensor is arranged to provide an image data stream wherein information regarding the location of a tennis ball shooter can be determined through one or more processors, thereby allowing said shooting assembly to accurately launch said collected tennis balls into said tenses ball shooter.

Continuity (1)
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