Telescopic Inspection Robot for High-Altitude Fab Equipment
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Solution Overview
Problem
Inspection of high-altitude equipment and pipes in semiconductor fabrication plants is challenging due to height limitations and safety risks for human inspectors, leading to delayed and hazardous inspections.
Innovation Solution
A mobile robot equipped with a telescopic lift and sensor packages for autonomous inspection, along with a collision prevention system, conducts unmanned inspections while managing mission schedules and detecting potential risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If human inspectors patrol to visually inspect high-altitude spots, then inspection can be conducted, but inspection quality is poor and safety risks increase due to height limitations
Solution Approach 1:
The patent introduces a mobile robot as an intermediary device to perform inspections at high-altitude locations. The robot equipped with telescopic lift and sensor packages serves as a mediator between human inspectors and dangerous high-altitude environments, eliminating direct human exposure to safety risks while maintaining inspection quality through automated sensing systems
Solution Approach 2:
The patent replaces the mechanical human inspection system with an automated mobile robot system. The robot uses sensor packages (cameras, detectors) instead of human visual inspection, and employs telescopic lift mechanisms to reach high-altitude targets, thereby improving measurement precision while eliminating safety risks associated with human presence
2Adaptability or versatility
If telescopic lift is extended to reach high-altitude targets, then inspection capability is improved, but collision risk with equipment or pipes increases
Solution Approach 1:
The patent implements preliminary collision prevention actions by equipping the mobile robot with sensor packages that detect obstacles before the telescopic lift makes contact. The system performs preliminary scanning and detection to identify equipment or pipes in the path of the telescopic lift, allowing the robot to adjust its path or retract the lift to prevent collisions
Solution Approach 2:
The patent employs feedback mechanisms where sensor packages continuously monitor the environment around the telescopic lift. When obstacles are detected, the system provides real-time feedback to the control unit, which then adjusts the telescopic lift operation or robot movement to avoid collisions, maintaining reliability while preserving inspection capability
3Productivity
If unmanned inspection is implemented using mobile robot, then safety is improved and efficiency increases, but system complexity increases due to autonomous driving and collision prevention requirements
Solution Approach 1:
The patent applies multi-functionality by designing the mobile robot to perform multiple functions: autonomous navigation, high-altitude reaching via telescopic lift, environmental sensing, collision detection, and data transmission. This universal design consolidates what would otherwise require multiple separate systems into a single integrated platform, improving inspection efficiency while managing system complexity through functional integration
Data Source
AI summary
A mobile robot includes a telescopic lift mounted on the outside of a main body of the mobile robot, the telescopic lift being extendable in a height direction; a first sensor package installed at an upper end of the telescopic lift; and a second sensor package installed at the upper end of the telescopic lift. The mobile robot is configured to collect information regarding an inspection target, which is installed at a high-altitude location on a particular floor level of a semiconductor fabrication plant, using the second sensor package, prevent the collision of the telescopic lift or the first sensor package of the mobile robot with the inspection target and/or stop the telescopic lift when the second sensor package collides with an object at the high-altitude location or with the inspection target, and conduct an unmanned inspection of the inspection target, including autonomously driving.