A dual functional robot for collecting rollable objects capable of an upright position and a horizontal position, in which the robot includes a way to propel the robot; a way to control propulsion of the robot; a way to locate the rollable object; a way to collect the rollable object; a way to store the rollable object; a way to support the robot and allow the robot to move across a surface in a low-friction manner; and a way to stably reorient the robot from the horizontal position into the upright position.

Provided is a highly reliable, cost-effective scattered object collection system that can efficiently collect scattered objects by reducing unnecessary traveling of a traveling collector. The scattered object collection system includes a traveling collector that performs a collecting operation by picking up balls B while traveling in a work area W, sets a virtual work area Z (or a virtual priority work area Za) to an area in the work area W where balls are relatively densely present and in the vicinity of the storage space of balls, and allows the traveling collector to perform a collecting operation in the virtual work area Z (or the virtual priority work area Za) with higher priority than the other areas.

A method for retrieving a ball on and about a sports court and for controllably releasing the ball includes a retriever having a vertical ball ejector, and upon ball collection, returning the ball to a desired location in the air or along the sports court surface. The sports court may be a tennis court or a pickleball court, with the method for retrieving and returning a ball being conducted with tennis balls or pickleballs on the respective court type.

Systems, methods, and computer-readable media are disclosed for autonomous tennis assistant systems having autonomous ball machines such as an autonomous and interactive tennis ball ejection robot. Example methods include determining, by a device, the position of a first player on a tennis court, determining a first target location for a first tennis ball to be ejected toward the first player, generating a trajectory for the first tennis ball to reach the first target location, and causing ejection of the first tennis ball from the tennis ball ejection robot along the generated trajectory toward the first target location. A base station may be used to provide image data for use by the tennis ball ejection robot from one or more additional vantage points.

A dual functional robot for collecting rollable objects capable of a stable upright position and a stable horizontal position, in which the robot includes a way to propelling the robot; a way to controlling propulsion of the robot connected to provide commands to the means for propelling; a way to locating the rollable object connected to provide data to the way to controlling propulsion; means for collecting the rollable object; a way to storing the rollable object positioned to accept the rollable object from the way to collecting; a way to supporting the robot and allowing the robot to move across a surface in a low-friction manner; and a way to stably reorienting the robot from the horizontal position into the upright position.

A method for retrieving a ball on and about a sports court and for controllably releasing the ball includes a retriever having a vertical ball ejector, and upon ball collection, returning the ball to a desired location in the air or along the sports court surface. The sports court may be a tennis court or a pickleball court, with the method for retrieving and returning a ball being conducted with tennis balls or pickleballs on the respective court type.

The present disclosure discloses a tennis ball-picking robot, including a chassis assembly, a ball-entering control element group, and a ball-collecting mechanism, the ball-entering control element group being disposed on a front end of the chassis assembly and the ball-collecting mechanism being disposed on a rear side of the chassis assembly. The tennis ball-picking robot incorporates multiple AI technologies such as computer vision, simultaneous localization and mapping, and robotics kinematics, enabling intelligent following, mapping and localization, and path planning. The robot can efficiently collect the tennis balls dropped on the court, and the players can also select a ball-picking area and a ball-picking speed pattern of the robot through an APP, improving the ball-picking efficiency, avoiding consuming the physical power of the players due to manual picking, improving the training effect by ultimately ensuring their focus during training, and reducing the training cost.

Systems, methods, and computer-readable media are disclosed for autonomous tennis assistant systems having autonomous ball machines such as an autonomous and interactive tennis ball ejection robot. Example methods include determining, by a device, the position of a first player on a tennis court, determining a first target location for a first tennis ball to be ejected toward the first player, generating a trajectory for the first tennis ball to reach the first target location, and causing ejection of the first tennis ball from the tennis ball ejection robot along the generated trajectory toward the first target location. A base station may be used to provide image data for use by the tennis ball ejection robot from one or more additional vantage points.

A ball collecting device with ball collecting module having a collecting component and at least one ball collecting module is disclosed. The collecting component has an accommodation space for accommodating at least one ball such that the ball can be collected into the accommodation space by rotating the collecting component. The ball collecting module is pivoted on the collecting component such that an angle is formed between the ball collecting module and a rotation axle of the collecting component, and the angle is smaller than 90 degrees or equal to 90 degrees. A constant distance between the ball collecting module and a plane is maintained when the ball is collected by the ball collecting device.

A bullet collecting robot comprises a bullet collecting device, a travel driving mechanism, and a controller. The bullet collecting device comprises a collection bin including a bullet accommodating cavity and a collection opening in communication with the bullet accommodating cavity, a friction roller provided at the collection opening, and a collection driving member connected with the friction roller. The travel driving mechanism is configured to drive the bullet collecting device to move. The controller is connected in communication with the collection driving member and the travel driving mechanism, and is configured to control the collection driving member and the travel driving mechanism.