CO2 Emission Calculation for Mixed Production Lines
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Solution Overview
Problem
Existing methods fail to accurately calculate CO2 emission amounts per unit product on mixed production lines where multiple types of products are produced, as the weight and energy consumption vary by product type, leading to imprecise calculations.
Innovation Solution
A management device and method that store unit weights of each product and proportionally divide electric power consumption based on the weight ratio of total weights produced, calculating CO2 emission amounts for each product, enabling precise calculation of CO2 emissions per unit product by dividing the total emissions by respective production quantities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If CO2 emission amounts are calculated based on total electric power consumption on a mixed production line, then calculation simplicity is maintained, but calculation precision deteriorates due to varying product weights and energy consumption
Solution Approach 1:
The patent segments the total electric power consumption into product-specific portions by introducing a weight ratio coefficient. The control device divides the total power consumption among different product types proportionally based on their weights, allowing separate CO2 emission calculations for each product type while maintaining overall system simplicity.
2Productivity
If multiple product types are produced on the same production line, then production efficiency is improved, but CO2 emission calculation accuracy deteriorates due to varying energy consumption per product
Solution Approach 1:
The patent applies local quality by assigning different weight ratio coefficients to different product types based on their individual weights. Each product type receives a customized allocation factor that reflects its specific energy consumption characteristics, enabling accurate CO2 emission calculations for each product while maintaining mixed production efficiency.
Data Source
AI summary
A management device is configured to manage CO2 emission amounts emitted from production of products on a production line. The management device includes a storage device configured to store a unit weight of a first product and a unit weight of a second product produced on the production line, and a control device that is configured to proportionally divide an electric power consumption amount consumed on the production line over a predetermined period, based on a weight ratio of a total weight of the first product and a total weight of the second product produced on the production line over the predetermined period, and calculate the CO2 emission amount for each product.