Combination Scale Dummy Run Mode Using Virtual Weight Values
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Solution Overview
Problem
Existing combination scales require actual articles to be weighed for operational checks, making dummy runs cumbersome and costly, especially when installing them in field sites.
Innovation Solution
The combination scale is equipped with a dummy run mode that allows for virtual weight values to be set, enabling combinatorial computations and control operations without actual articles, using virtual weight values and zero-point correction to simulate the presence of articles, thus allowing for a dummy run without physical articles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If actual articles are used for operational checks during installation, then the accuracy of weighing and combinatorial computations can be verified, but the complexity and cost of dummy runs increase significantly
Solution Approach 1:
The patent creates virtual copies of actual articles through weight data representing articles in weighing hoppers. These virtual articles simulate the presence and weight characteristics of real articles, allowing operational checks to be performed on the combination scale without physically handling actual products. The weight data serves as a digital replica that preserves the essential measuring function while eliminating the need for physical dummy articles.
Solution Approach 2:
The patent changes the state of the weighing hoppers from physically empty to virtually filled by inputting weight data that represents article weights. This parameter change allows the system to simulate different loading conditions and perform comprehensive operational checks including weighing accuracy, combinatorial computations, and discharge control without actual articles present in the hoppers.
2Reliability
If actual articles are used for dummy runs, then the weighing and control functions can be tested, but the cost and time consumption increase
Solution Approach 1:
The patent performs preliminary setup by inputting weight data that represents articles before actual operational testing begins. This preliminary action establishes the virtual article weights in advance, allowing the combination scale to immediately proceed with functional tests including combinatorial computations and discharge control without needing to physically load and unload actual articles during the testing process.
Solution Approach 2:
By using weight data as virtual copies of actual articles, the system eliminates the time-consuming processes of physically transporting, loading, and handling dummy articles. The virtual articles instantaneously represent the desired test conditions, significantly reducing the time required for operational verification while maintaining test accuracy.
3Ease of operation
If virtual weight values are used to simulate articles, then dummy runs can be performed without actual articles, but the accuracy of weight measurement simulation must be ensured
Solution Approach 1:
The patent incorporates feedback mechanisms where the combination scale performs combinatorial computations on the input weight data and compares the results against target weights. This feedback loop verifies that the virtual weight values accurately represent realistic article weight combinations, ensuring that the simulation maintains measurement precision while enabling simple operational testing without actual articles.
Solution Approach 2:
The system allows flexible adjustment of weight data parameters to match specific article types and test scenarios. By modifying the weight values in the virtual articles, users can simulate different product weights, combinations, and test conditions, ensuring measurement precision is maintained across various operational scenarios while keeping the dummy run process simple and article-free.
Data Source
AI summary
A virtual weight value is set, and a dummy run mode is set and activated. Then, a zero point, reference value used to calculate the weight value of articles to be weighed in each weighing hopper, is corrected based on the virtual weight value. This enables a dummy run of a combination scale to be performed with the actually empty weighing hopper being assumed to contain the articles equivalent to the virtual weight value.