Combination Weigher Feed Distribution Using Biased Center Estimation
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Solution Overview
Problem
Existing combination weighing apparatuses struggle to accurately estimate the deviation degree of articles supplied to multiple radiation feeders, leading to complications and reduced reliability in distribution.
Innovation Solution
A combination weighing apparatus that includes a dispersion table, radiation feeders, detectors, and a controller to generate vector information based on loading status and position information, allowing for the estimation of biased centers and adjustment of article distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If 3D restoration using a 3D camera or a large number of imaging means is used to estimate the degree of objects staying on the feeding means, then the estimation accuracy is improved, but the device complexity and processing load increase significantly
Solution Approach 1:
The patent extracts only the essential information needed for estimation by using a single 2D camera to capture images of the feeding means. Instead of employing complex 3D cameras or multiple imaging devices, the system processes 2D images to calculate the area occupied by objects, thereby achieving accurate estimation while keeping the device simple and the processing load manageable.
2Loss of information
If a large number of imaging means are used to capture objects on the feeding means, then the information completeness is improved, but the processing load and time consumption increase
Solution Approach 1:
The patent implements continuous image capture using a single 2D camera positioned to continuously monitor the feeding means. This continuous imaging approach ensures that object distribution information is captured in real-time without the need for multiple cameras, thereby maintaining information completeness while minimizing processing time and resource consumption.
3Reliability
If multiple imaging devices are deployed to track object distribution, then the measurement reliability is improved, but the system complexity and cost increase
Solution Approach 1:
The patent introduces an image processing algorithm as an intermediary that transforms simple 2D camera images into reliable object distribution data. By using image processing techniques to calculate the area occupied by objects and determine their distribution state, the system achieves high measurement reliability without the need for multiple expensive imaging devices, thus keeping the overall system simple and cost-effective.
Data Source
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AI summary
A combination weighing apparatus includes a dispersion table configured to convey an article from a received center to an outer side, the article being supplied from an outside, a plurality of conveying feeders disposed outside the dispersion table, the plurality of conveying feeders being configured to further convey the article conveyed from the dispersion table, a detector configured to detect a loading status information of the article in each of the plurality of conveying feeders, and a controller configured to receive a detection result of the detector. The controller is configured to generate a vector information based on the loading status information detected by the detector and a position information of the plurality of conveying feeders with respect to a center of the dispersion table, and generate a biased center of the article on the dispersion table obtained based on the vector information as a biased center position information with respect to the center of the dispersion table.