Sewing Machine Power Measurement Circuit for Energy Use Control
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Solution Overview
Problem
Traditional sewing machines lack effective power consumption measurement capabilities, leading to increased costs and inefficiencies, as they often require external power meters and do not have internal mechanisms to control or monitor power usage.
Innovation Solution
Incorporating a measurement circuit within the sewing machine to measure current and voltage in the power supply line, allowing a control portion to calculate and provide power consumption information, thereby eliminating the need for additional power measurement mechanisms and reducing overall costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If external power meters are used to measure power consumption, then measurement accuracy is improved, but device complexity and cost increase
Solution Approach 1:
The patent combines the power measurement function with the existing control unit by integrating a measurement circuit that measures current and voltage directly within the sewing machine's power supply line. This eliminates the need for external power meters and reduces system complexity while maintaining measurement accuracy through the formula P=UI.
Solution Approach 2:
The control unit is given multiple functions: it not only controls the sewing machine operations but also measures power consumption through an integrated measurement circuit. This multi-functional approach eliminates the need for separate dedicated power measurement devices, reducing overall system complexity.
2Adaptability or versatility
If internal measurement circuit is added to the sewing machine, then power consumption control capability is improved, but manufacturing cost increases
Solution Approach 1:
The control unit is enhanced to perform both control operations and power measurement functions through an integrated measurement circuit. This multi-functional design adds power consumption control capability without requiring completely separate systems, thereby limiting the increase in manufacturing cost.
Solution Approach 2:
The sewing machine becomes self-sufficient in measuring and controlling its own power consumption through the integrated measurement circuit and control unit. This eliminates the need for external measurement devices and enables the machine to autonomously monitor and optimize its power usage, adding capability while keeping cost increases minimal.
3Ease of manufacture
If traditional sewing machine design is maintained, then manufacturing simplicity is preserved, but power consumption management efficiency deteriorates
Solution Approach 1:
The control unit is given dual functionality: it maintains its traditional control operations while also performing power consumption measurement and management. This approach improves power consumption management efficiency without fundamentally altering the traditional sewing machine design or manufacturing process.
Solution Approach 2:
A measurement circuit acts as an intermediary component that bridges the power supply line and the control unit. This intermediary enables power consumption monitoring and management while integrating smoothly into the existing traditional design framework, maintaining manufacturing simplicity while improving efficiency.
Data Source
AI summary
A sewing machine and a management system for the sewing machine can suppress an increase in the cost of the sewing machines and control power consumption. The sewing machine includes a power portion configured to supply power from a power supply line to a functional portion; and a control portion configured to control the functional portion to operate using the power supplied from the power portion, where the power portion includes a measurement circuit for measuring current and voltage in the power supply line, and the control portion includes: a calculation portion configured to calculate power consumption information of the sewing machine based on the current and the voltage measured by the measurement circuit; and a provision portion configured to provide the calculated power consumption information.