Action Instruction Apparatus for Worker Abnormality Detection
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Solution Overview
Problem
Existing production management systems fail to address abnormalities in worker actions that lead to defects, such as omission of operations or incorrect tool usage, during assembly processes.
Innovation Solution
An action instruction apparatus that includes a standard operating procedure storage unit, an operation step identifying unit, an operation abnormality detecting unit, and a recovery action instruction generating unit, utilizing sensors and cameras to detect and correct worker abnormalities by comparing actual operations with predefined standards and generating recovery instructions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If production management systems focus on recovery by re-performing operation steps corresponding to shortages caused by defects, then defect recovery is enabled, but abnormalities in worker actions causing defects are not addressed
Solution Approach 1:
The system implements feedback by detecting worker actions through sensors, comparing them against standard operating procedures, and providing real-time notifications when abnormalities are detected. This closed-loop feedback mechanism enables the system to identify and address root causes of defects by monitoring whether workers are performing operations correctly, rather than merely reacting to defect outcomes.
2Reliability
If sensors are used to detect worker actions and compare with standard procedures, then worker action abnormalities can be detected, but system complexity increases
Solution Approach 1:
The system employs self-service by utilizing existing sensors already deployed in the production environment to capture worker actions. Rather than requiring complex specialized monitoring equipment, the system repurposes available sensor infrastructure combined with automated image recognition and comparison algorithms to achieve reliable worker action monitoring, thereby reducing additional hardware complexity.
Data Source
AI summary
Provided is a technology for recovery from an abnormality of an action of a worker. An action instruction apparatus includes: a standard operating procedure storing unit configured to store, for each operation step, output information from a predetermined sensor relating to a standard action of a worker; an operation step identifying unit configured to acquire output information from a sensor and to compare the acquired output information with the standard action to identify an operation step being performed; an operation abnormality detecting unit configured to acquire output information from a sensor relating to an operation step subsequent to the operation step being performed by the worker to detect an operation abnormality when the acquired output information differs from the output information in the operation step subsequent to the operation step being performed; and a recovery action instruction generating unit configured to generate an operation instruction detail for recovery.