Mobile Defect Detection with Adaptive Speed Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing defect detection systems face a trade-off between accuracy and examination time, where improving accuracy requires slower movement and more detailed information collection, increasing time, while faster movement reduces accuracy but shortens examination time.
Innovation Solution
A detection system with a drive control unit that adjusts the traveling speed of a base member based on sensor information, using a first detection unit to identify defect-indicating signs and a second detection unit to accurately detect defects, allowing for detailed information collection at slow speeds near defects and faster movement elsewhere.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the moving speed of the apparatus is reduced to improve defect detection accuracy, then the detection accuracy is improved, but the examination time is increased
Solution Approach 1:
The apparatus dynamically adjusts its moving speed based on detection results. The control unit controls the moving unit to move at a first (slower) speed when a detection target is detected, and at a second (faster) speed when no target is detected. This dynamic speed adjustment resolves the contradiction by making the speed variable rather than fixed, allowing fast movement during normal operation and slow movement only when defects are detected.
Solution Approach 2:
The system uses feedback from the detection unit to control the moving speed. The detection unit continuously monitors for defects, and based on this feedback, the control unit adjusts the moving speed accordingly. When defects are detected, the apparatus slows down for detailed examination; when no defects are present, it maintains higher speed for efficient traversal.
2Productivity
If the moving speed of the apparatus is increased to reduce examination time, then the examination time is reduced, but the defect detection accuracy is deteriorated
Solution Approach 1:
The apparatus uses dynamic speed adjustment to maintain high productivity while ensuring detection accuracy. By moving at higher speeds during normal operation and only slowing down when defects are detected, the system achieves both efficient examination and accurate detection without the trade-off inherent in fixed-speed systems.
Solution Approach 2:
The system applies different quality levels of information collection to different regions. During normal traversal, it collects information at a standard rate for efficiency. When a detection target is identified, it switches to a higher quality collection mode with slower movement to ensure accurate defect detection in that specific local area.
3Loss of information
If detailed information is collected by moving slower, then the information quality is improved, but the examination duration is extended
Solution Approach 1:
The system applies detailed information collection partially, only when and where needed. Instead of continuously moving slowly to collect detailed information throughout the entire examination, it uses high-speed traversal for most of the route and switches to slow, detailed collection only when detection targets are identified, thus achieving high information quality without excessive examination duration.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An object of the invention is to provide a new defect detection technique using an autonomously movable apparatus. In order to accomplish the object, the invention provides a detection system (10) including a drive control unit (15) that controls a driving unit (12) causing a base unit (11) to travel in a case where a predetermined detection target is detected on the basis of information collected by a sensor unit (13) installed in the base unit (11), and a second detection unit (16) that detects a predetermined defect on the basis of the information collected by the sensor unit (13).