Robot Hand Dual Communication for Faster Grip Timing
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Solution Overview
Problem
Existing robot hand systems face inefficiencies in communication between the robot hand and arm, leading to slower operation times and reduced modularity, particularly when relying on a processing device for data transfer.
Innovation Solution
The implementation of a dual communicator system in the robot hand and arm, where the second communicator enables faster communication for start and end notifications, allowing the hand controller to initiate and conclude gripping operations independently, while the first communicator handles grip data transfer with the processing device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single communicator is used for all communication between robot hand and arm, then device complexity is reduced, but communication speed and operation efficiency deteriorate
Solution Approach 1:
The communication system is segmented into two distinct communicators: a first communicator for data transmission and a second communicator for timing-critical notifications. This segmentation allows each communicator to be optimized for its specific function, with the second communicator dedicated to fast start/end notifications between the robot hand and arm, thereby resolving the contradiction between device complexity and communication speed.
2Adaptability or versatility
If communication relies on a processing device, then system modularity is reduced, but communication infrastructure is simplified
Solution Approach 1:
The timing-critical communication function is extracted from the central processing device and implemented as a dedicated second communicator directly between the robot hand and arm. This extraction enables the hand controller to independently manage gripping operation timing without waiting for processing device intervention, thereby improving system modularity and independence while maintaining simplified overall infrastructure.
3Duration of action of moving object
If the hand controller waits for processing device communication to initiate gripping, then operation time is reduced, but communication efficiency deteriorates
Solution Approach 1:
The second communicator enables preliminary action by allowing the hand controller to receive start notifications directly from the robot arm and immediately initiate gripping operations based on pre-loaded grip data. This eliminates the waiting time for processing device communication, thereby reducing operation time while maintaining high communication efficiency through the dedicated fast notification channel.
Data Source
AI summary
According to one embodiment, a robot hand grips an object. The robot hand includes first and second communicators, and a hand controller. The first communicator communicates grip data with a first device. The grip data is related to a gripping operation. The second communicator communicates a start notification and an end notification with a second device. The second communicator can communicate faster than the first communicator. The start notification is for starting the gripping operation. The end notification indicates an end of the gripping operation. The hand controller controls the gripping operation. In response to the start notification input to the second communicator, the hand controller starts the gripping operation. In response to the end of the gripping operation, the hand controller performs outputting the end notification, and outputting at least one of a result of the gripping operation or a state of the robot hand.