Tablet Terminal Controller Verification for Robot Safety
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Solution Overview
Problem
Existing robot operation command systems risk accidentally operating a robot other than the one intended by the operator when the control units connected to the portable device and the docking base are different.
Innovation Solution
A tablet terminal system that prevents operation signal transmission to a controller unless the identification information of the controller connected to the base matches the one connected to the tablet terminal, using an operation restricting unit to ensure correct robot operation by validating the connection and displaying prompts to the operator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless connection is used between tablet terminal and controller, then ease of operation is improved, but reliability deteriorates due to risk of connecting to wrong controller
Solution Approach 1:
The system implements feedback by having the tablet terminal acquire identification information from both the base and the controller, then comparing these identifiers to verify they match. This feedback mechanism ensures the tablet is connected to the correct controller before allowing operation, thus maintaining reliability while preserving wireless ease of operation.
Solution Approach 2:
The base acts as an intermediary between the tablet terminal and the controller. It holds the tablet terminal in a specific posture and transmits identification information to the tablet, which mediates the connection verification process to ensure the correct controller is selected, thereby improving reliability without compromising wireless operation convenience.
2Ease of operation
If portable device is placed on docking base for wireless transmission, then ease of operation is improved, but harmful factors increase due to accidental robot operation
Solution Approach 1:
The system applies preliminary anti-action by preventing operation signal transmission before accidental harmful effects can occur. The tablet terminal verifies that the controller's identification information matches the base's identification information before allowing any operation signals to be sent, thus blocking potential harmful actions in advance while maintaining ease of operation.
3Reliability
If identification verification is implemented, then reliability is improved, but device complexity increases
Solution Approach 1:
The base serves multiple functions: it holds the tablet terminal in a specific posture, transmits identification information to the tablet, and enables wireless connection to the controller. By making the base multi-functional, the system achieves reliable identification verification without adding separate dedicated devices, thus improving reliability while minimizing increases in device complexity.
Data Source
AI summary
A tablet terminal that establishes a wireless connection with one of a plurality of controllers each having identification information and transmits an operation signal for commanding operation of a robot to the wirelessly connected controller, is configured to prevent the robot from being operated by the operation signal when the identification information of the controller to which the base holding the tablet terminal is connected does not coincide with the identification information of the controller to which the tablet terminal is connected.