Operation Area Mapping for Work Machine Incident Cause Analysis
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Solution Overview
Problem
Operators and managers face difficulties in determining whether incident risks with work machines are due to operator error or operating conditions, as the risk of incidents varies by location, making it challenging to identify the cause through visual inspection of warning notification reports.
Innovation Solution
An operation area presentation device that receives and processes position history data to generate an operation area map, showing the staying time of the work machine in different areas, allowing for visual recognition of high-risk areas and potential operator errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If warning notification history is generated and visually recognized, then incident risk monitoring is enabled, but it becomes difficult to determine whether the risk is caused by operator error or high-risk operating conditions
Solution Approach 1:
The patent introduces a spatial dimension by dividing the operation site into multiple areas and mapping the work machine's staying time to a map. This transforms the one-dimensional warning history into a two-dimensional spatial representation, enabling visual identification of high-risk areas and facilitating cause analysis by showing whether incidents occurred in specific locations.
Solution Approach 2:
The patent introduces an intermediary element (the operation area map with staying time visualization) between the raw warning notification history and the operator/manager's understanding. This intermediary processed information by incorporating spatial location data and time duration, making the relationship between incidents and operating conditions explicit and easier to interpret.
2Measurement precision
If detailed position history data is processed and visualized, then incident cause analysis capability is improved, but system complexity increases
Solution Approach 1:
The patent creates a simplified copy (map representation) of the actual operation site, preserving only the essential spatial information needed for analysis. Instead of processing and displaying all raw position history data, it generates a visual map showing staying time distribution, which is easier to process and interpret while maintaining the necessary precision for incident cause analysis.
3Ease of operation
If staying time for each area is calculated and mapped, then visual recognition of high-risk areas is enabled, but data processing time increases
Solution Approach 1:
The patent changes the parameter representation from raw position coordinates to aggregated staying time metrics for each area. By transforming the data into a different parameter form (time duration per area rather than continuous position data), it enables easier visual recognition and interpretation while reducing the complexity of real-time processing requirements.
Data Source
AI summary
In an operation area presentation device according to the present invention, a reception unit is configured to receive history data of a position of an operation site in which a work machine is present. A calculation unit is configured to calculate a staying time of the work machine for each of a plurality of areas of the operation site. A generation unit is configured to generate an operation area map obtained by mapping the staying time for each of the plurality of areas to a map of the operation site. An output unit is configured to output the generated operation area map.