Sewing Machine Time Synchronization for Accurate Production Data
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Solution Overview
Problem
Sewing machines without clock functions pose a challenge in managing operation information as they cannot associate data with time, leading to inadequate production management and comparison of progress or operation rates.
Innovation Solution
A production management system that includes a sewing machine and a device capable of acquiring and storing operation data, where the sewing machine acquires time information from a connected clock during communication, allowing time to be added to recorded operation data, even if the sewing machine lacks a clock, through a time acquisition unit, and the device processes this data for accurate management and display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If sewing machines without clock functions are used to reduce device complexity and cost, then manufacturing cost and device simplicity are improved, but the ability to associate operation information with time is worsened
Solution Approach 1:
The production management device serves as an intermediary that provides time information to sewing machines without clock functions. The sewing machine transmits a request signal to the production management device, which responds with time information that the sewing machine then associates with its operation data, enabling time-stamped recording without adding clocks to each machine.
Solution Approach 2:
The production management device performs multiple functions: it manages production data from multiple sewing machines, provides time information to machines without clocks, and enables time-based analysis across the entire production system, making it a universal solution for the time information problem.
2Ease of manufacture
If sewing machines without clock functions are used to simplify the system, then ease of manufacture is improved, but production management accuracy is worsened
Solution Approach 1:
The production management device acts as an intermediary that supplies accurate time information to sewing machines without clocks. This allows the machines to be manufactured simply while the central device ensures accurate time-based production management through the time information transmission mechanism.
3Device complexity
If operation data is collected from multiple sewing machines without centralized time synchronization, then system simplicity is improved, but data comparison accuracy is worsened
Solution Approach 1:
The production management device serves as a central intermediary that provides synchronized time information to multiple sewing machines. This enables accurate comparison of operation data across different machines while maintaining system simplicity, as the time synchronization is handled centrally rather than requiring complex distributed synchronization.
Data Source
AI summary
A production management system includes a sewing machine and a production management device. The sewing machine records chronological operation data. The production management device communicates with the sewing machine, and acquires and stores the operation data. The sewing machine includes a time acquisition unit that acquires a time at the time of the communication from a clock of the production management device at the time of the communication with the production management device and grants time information based on the time at the time of the communication to the operation data recorded at the time of the communication.