Image Guided Scale Calibration Error Reduction
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Solution Overview
Problem
The calibration process for scanners/scales is complex and prone to errors due to the need for precise placement of weights in specific locations, which can lead to user mistakes.
Innovation Solution
An image-guided scale calibration method that provides instructions for placing weights on a scale, captures images to verify the correct weight and location, and performs remedial actions when errors are detected, using a device with a processor, memory, imaging device, and output devices like speakers or displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual weight placement instructions are provided without verification, then the calibration process is simple to implement, but user errors increase and calibration accuracy decreases
Solution Approach 1:
The system captures images of the scale platform during calibration and provides real-time feedback to the user about weight placement correctness. The processor analyzes the captured images to detect whether weights are present and correctly positioned, then communicates this information back to the user through visual or auditory signals, enabling self-correction of placement errors.
Solution Approach 2:
The patent replaces manual visual inspection and physical verification of weight placement with an automated imaging and image processing system. Instead of relying on users to manually check placement accuracy, the system uses cameras and computer vision algorithms to automatically detect and verify weight positions, substituting mechanical/manual verification with optical detection.
2Measurement precision
If image capture and processing is added to verify weight placement, then calibration accuracy improves, but the time required for calibration increases
Solution Approach 1:
The system captures images of the scale platform at predetermined calibration stages before proceeding to the next calibration step. By capturing verification images in advance and processing them immediately, the system ensures placement verification is completed before moving forward, preventing rework and actually reducing total calibration time despite adding verification steps.
Solution Approach 2:
The system rapidly processes captured images using automated algorithms that quickly identify weight presence and position without requiring manual inspection. The fast image processing and automated decision-making enable the system to verify placement accuracy in seconds rather than minutes, minimizing the time penalty of added verification.
3Manufacturing precision
If multiple weights must be placed in specific locations and orders, then calibration thoroughness improves, but ease of operation decreases
Solution Approach 1:
The system provides real-time guidance and verification that enables users to perform calibration independently without requiring training or reference materials. The automated image analysis and feedback system guides users through each step, confirming correct weight placement automatically, which simplifies the operation while maintaining thorough multi-point calibration.
Solution Approach 2:
The imaging and feedback system acts as an intermediary between the user and the calibration process. Instead of users directly managing complex multi-step weight placement procedures, the system mediates by automatically tracking progress, verifying placements, and providing step-by-step guidance, thereby simplifying user interaction while ensuring thorough calibration.
Data Source
AI summary
Various embodiments herein each include at least one of devices, methods, and software for image guided scale calibration. One embodiment, in the form of a method, includes outputting an instruction to place a first weight on a scale being calibrated at a particular location and capturing at least one image of the weight when placed on the scale. The method then processes a captured image of a weight when placed on the scale to determine whether the weight is the first weight and whether the weight is at the particular location. When the weight placed on the scale is not the first weight or the weight is not at the particular location, the method performs a remedial action.