Weighing Apparatus Digital Filter Evaluation and Selection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Users of weighing apparatuses face difficulties in setting digital filters, requiring expertise, and there is a concern that automatically set filters may not be optimal for the apparatus and its surroundings, affecting accuracy.
Innovation Solution
A weighing apparatus that automatically generates and displays evaluation information for each digital filter by applying them to an original signal during idle operation, allowing operators to select suitable filters based on this information, improving the accuracy of filter settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple digital filters are set in advance in the filter unit, then the weighing accuracy can be improved by selecting a filter suitable for the conditions, but the device complexity increases and the ease of operation deteriorates because only designers or experts can perform the setting
Solution Approach 1:
The weighing apparatus automatically evaluates multiple digital filters by processing original signals during idle operation and presents evaluation information to the operator, allowing the system to partially perform the filter selection task itself rather than requiring expert manual configuration
Solution Approach 2:
The system processes original signals through multiple digital filters, generates evaluation information based on the processing results, and displays this feedback to the operator, enabling data-driven filter selection rather than relying solely on expert knowledge
2Ease of operation
If the weighing apparatus automatically sets a digital filter, then the ease of operation is improved, but the measurement precision may deteriorate because the automatically set filter may not be optimal for the specific conditions of the apparatus and surroundings
Solution Approach 1:
The system automatically processes original signals through multiple digital filters and generates evaluation information, enabling automatic filter assessment without requiring expert intervention while maintaining the possibility of achieving optimal filtering results
Solution Approach 2:
The system provides evaluation information that reflects how well each digital filter performs under the actual operating conditions, allowing operators to make informed selections that balance automation with accuracy requirements
3Ease of operation
If evaluation information is generated and displayed for each digital filter, then the ease of operation is improved by enabling operators to easily select suitable filters, but the device complexity increases due to the additional processing and display requirements
Solution Approach 1:
The processing unit acts as an intermediary that automatically performs the complex task of evaluating multiple digital filters and generating comparative information, shielding the operator from complexity while providing simplified decision-support information
Solution Approach 2:
The system performs filter evaluation and generates comparison information in advance during idle operation, so that when the operator needs to select a filter, the complex analysis work has already been completed and only the final selection remains
Data Source
AI summary
A weighing apparatus includes a conveyance unit configured to convey an article, a weighing unit configured to weigh weight of the article conveyed by the conveyance unit, a processing unit configured to process an original signal related to weighing, by a plurality of digital filters set in advance, the original signal being output from the weighing unit, and a display unit configured to display information output from processing unit, in which the processing unit is configured to generate evaluation information for each digital filter to be applied, based on a result of sequentially applying the plurality of digital filters to the original signal that is output when the conveyance unit is in operation and the article is not conveyed by the conveyance unit, and the display unit is configured to display at least one of the evaluation information.