Robot Control System Dynamic Communication Quality Criterion Adjustment
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Solution Overview
Problem
Conventional robot control systems face challenges in ensuring safety and convenience when using wireless communication, as they either stop the robot too quickly due to low communication quality or take too long to transmit emergency stop signals, leading to safety and operational inefficiencies.
Innovation Solution
A robot control system that measures the distance between the robot and a portable wireless operation panel and dynamically adjusts the communication quality criterion based on this distance, allowing for more flexible communication intervals and thresholds to balance safety and convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the criterion for communication quality is made strict to ensure safety, then the robot can be stopped promptly in emergencies, but unnecessary stoppages occur reducing operational convenience
Solution Approach 1:
The patent applies dynamics by making the communication quality criterion adjustable rather than fixed. The control device dynamically changes the criterion value based on the measured distance between the operation panel and robot, transitioning from a static safety threshold to a dynamic adaptive threshold that responds to real-time spatial conditions.
Solution Approach 2:
The patent implements parameter changes by modifying the communication quality criterion parameter according to distance measurements. When the operation panel is within a predetermined distance of the robot, a stricter criterion is applied; when beyond this distance, a more lenient criterion is used, allowing the system to optimize between safety and operational continuity through parameter adjustment.
2Ease of operation
If the criterion for communication quality is loosened to improve operational convenience, then unnecessary stoppages are reduced, but the robot may not be stopped promptly in emergencies
Solution Approach 1:
The system dynamically adjusts the communication quality criterion based on real-time distance measurements, allowing the criterion to be lenient when the operator is at a safe distance while maintaining strict criteria when the operator is close to the robot, thus balancing operational convenience with safety requirements.
Solution Approach 2:
The patent applies local quality by implementing different communication quality criteria in different spatial zones. A first criterion is applied when the operation panel is within the predetermined distance of the robot, and a second (more lenient) criterion is applied when beyond this distance, allowing optimized performance for each operational context.
3Device complexity
If a fixed communication quality criterion is used, then the system is simple to implement, but it cannot adapt to varying distances between the operation panel and robot
Solution Approach 1:
The patent transforms the static communication quality criterion into a dynamic one by introducing distance measurement and conditional judgment logic. The control device continuously monitors distance and automatically adjusts the appropriate criterion, adding adaptability while maintaining relatively simple system architecture through straightforward conditional processing.
Solution Approach 2:
The system changes the communication quality criterion parameter based on the distance parameter. By linking these two parameters through conditional logic, the system achieves adaptability to different operational scenarios without requiring complex algorithms, simply adjusting which criterion value is applied based on measured distance.
Data Source
AI summary
A robot control system of the present invention includes: a control device for controlling a machine; a portable wireless operation panel that can perform wireless communication with the control device to control the machine; a distance measuring unit that measures the distance between the machine and the portable wireless operation panel; a communication monitoring unit that monitors the communication quality of wireless communication between the control device and the portable wireless operation panel; a warning generator that emits a warning to the operator or stops the machine when the communication quality becomes lower than a predetermined criterion; and, a criterion changing unit that changes the predetermined criterion in accordance with the distance between the machine and the portable wireless operation panel.