Demonstration of Tactile gripping tool
Picking a fragile object with and without tactile sensors.
Tomato picking – Picking a fragile object with and without tactile sensors.
Robotic picking of a fragile object, like a tomato, is not easy. In this experiment we demonstrate how a standard gripper acts with and without tactile feedback to the robot.
On the left side of the demonstration, the tomato is squashed when the gripping tool engages
On the right side, the gripper gently detects the tomato, then ensures a central contact point before the gripper locks in and engages with the object
TOMATO PICKING – Picking an object in an unknown location
Computer vision is a helpful tool for detecting, identifying and locating of a random object. However, any fine and delicate interaction between gripping tool and object is better controlled with tactile sensors placed right at the point of contact.
In this demonstration, the rough position of the tomato is captured by a camera, while contact is accurately captured by tactile sensors. This ensures that any object is delicately handled by the robot system.
Picking an object in an unknown location.
Playing games with the robot.
TOMATO PICKING – Playing games with the robot
Our engineers like to challenge any technology. In this demonstration, the tomato is forced out of the gripping tool, so that the robot reverts to detecting location and re-picking of the tomato
EGG PICKUP – Finding a good contact point
By rotating the gripping tool, the any object feature like edges and curved surfaces can be identified. Hereby, the egg is handled with the optimum grip location.
Finding a good contact point
LIFTING A BOTTLE
Fast closing of gripping tool
LIFTING A BOTTLE – Fast closing of gripping tool
A proximity sensor detects the distance from tool to object. Before the tool reaches contact with the object, the motor speed is sufficiently slow to allow for the tactile sensors to feed contact information to the control of the tool.