Work Unit Log Analysis for PCB Maintenance Without Data Overload
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Solution Overview
Problem
Existing work device analysis systems face challenges in efficiently analyzing the state of work devices used in manufacturing electronic circuit boards, particularly due to large data loads when diagnosing malfunctions in devices installed in different facilities, which can disrupt production efficiency.
Innovation Solution
A system that acquires work history information from work devices, generates operation event logs and manufacturing logs, and determines maintenance necessity and condition estimation, reducing data transmission loads by creating and transmitting smaller files for analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If log data is collected for diagnosing work device malfunction, then maintenance can be performed without interrupting manufacturing work, but a large load is generated in transmission and reception of data
Solution Approach 1:
The patent extracts only the necessary diagnostic information from the enormous log data by using a determination expression that identifies key parameters indicating work unit deterioration. Instead of transmitting all log data, the system extracts and transmits only the essential maintenance determination information, significantly reducing data transmission load while maintaining diagnostic accuracy.
Solution Approach 2:
The patent introduces an intermediate processing step where the work device itself performs preliminary analysis of its log data using a determination expression before transmitting results. This intermediary processing filters out unnecessary data and transmits only the critical maintenance determination information, reducing the load on external diagnostic systems.
2Reliability
If inspection and maintenance are performed periodically for work units, then deterioration such as contamination and wear can be detected, but production efficiency decreases due to work interruptions
Solution Approach 1:
The patent implements continuous monitoring with feedback by collecting log data during work device operation and using determination expressions to assess work unit condition in real-time. This allows the system to provide feedback on work unit status without interrupting manufacturing work, enabling maintenance to be scheduled at optimal moments rather than forcing production interruptions.
Solution Approach 2:
The work device performs self-diagnosis by collecting its own log data and evaluating it against determination expressions to assess its own condition. This self-service capability eliminates the need for external inspection personnel and equipment, allowing continuous operation while monitoring work unit health.
3Measurement precision
If enormous log data is transmitted to a facility different from the work device, then comprehensive diagnosis can be performed, but transmission and reception time increases
Solution Approach 1:
The patent extracts only the essential diagnostic parameters from enormous log data using determination expressions that identify key indicators of work unit condition. By transmitting only these extracted critical parameters rather than complete log data, the system maintains diagnosis accuracy while dramatically reducing transmission time and data volume.
Data Source
AI summary
A work device analysis method includes acquiring work history information from a work device, the work device being attached with a work unit that performs a work for manufacturing an electronic circuit board (ST1), generating a first file and a second file from the work history information acquired, the first file including an operation event log of the work device, the second file including a manufacturing log of the electronic circuit board (ST2 to ST4), determining maintenance necessity of the work unit based on the first file (ST5), and estimating a state of the work unit based on the second file (ST6).