Shovel Diagnostic Buffering After Abnormality Detection
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Solution Overview
Problem
Existing shovels do not effectively collect and store diagnostic data when an abnormality occurs during operation, resulting in lost information about the shovel's condition at the time of the abnormality.
Innovation Solution
A hardware processor in the shovel is configured to collect diagnostic data from condition detecting sensors and continue data collection after an abnormality is detected, allowing for the storage of information indicating the shovel's condition at the time of the abnormality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the shovel stops operation when an abnormality is detected, then safety is improved, but diagnostic data collection is interrupted and information is lost
Solution Approach 1:
The system prepares a buffer memory in advance to store diagnostic data. When an abnormality is detected, the shovel stops operation for safety, but the buffer memory continues to collect and store diagnostic data temporarily, preventing information loss until the data can be transferred to main storage.
Solution Approach 2:
A buffer memory acts as an intermediary between the data collection system and the main storage. This intermediary component temporarily holds diagnostic data during abnormality conditions, allowing continuous data collection even when the main system is interrupted by safety shutdowns.
2Loss of information
If diagnostic data collection is continued after abnormality detection, then complete diagnostic information is obtained, but system complexity increases
Solution Approach 1:
The data collection system is segmented into two parts: a main data collection system and a separate buffer memory. This segmentation allows the buffer to handle abnormality conditions independently, keeping the overall system relatively simple while ensuring continuous data collection.
Solution Approach 2:
The system changes the operational parameter of data collection by enabling continuous collection in the buffer memory during abnormality conditions, while maintaining the ability to switch between normal and abnormal collection modes based on system state.
Data Source
AI summary
A shovel includes a hardware processor configured to collect diagnostic data from a condition detecting sensor and to detect an abnormality based on the collected diagnostic data. The hardware processor is configured to continue to collect the diagnostic data, after detection of the abnormality during collection of the diagnostic data.