Excavator Operation Review With Synchronized Video and Sensor Data
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Solution Overview
Problem
Conventional excavator management systems allow users to confirm images only during periods of identified abnormalities, failing to provide a means to review excavator operations with a mobile terminal at the work site.
Innovation Solution
An excavator management system that includes a mobile terminal capable of capturing video and synchronizing it with state quantity information from the excavator, allowing the recording of operation data, video, and sound data for review.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If image data is stored only when detection values are abnormal, then storage space is saved and data management is simplified, but users cannot review normal operation states and comprehensive performance analysis is limited
Solution Approach 1:
The system performs preliminary synchronization by associating video data with state quantity information before abnormality detection occurs. This allows comprehensive operation review while maintaining efficient storage by only storing video segments corresponding to abnormal events when needed for analysis.
Solution Approach 2:
The video data is segmented and associated with specific time periods and state quantity measurements. Only relevant video segments corresponding to abnormal detection values are stored in the storage device, while normal operation video can be temporarily retained or discarded based on storage capacity.
2Loss of information
If comprehensive operation data including video and sound is recorded continuously, then complete operation review is enabled, but storage requirements increase and system complexity rises
Solution Approach 1:
The system merges video data from the imaging device with state quantity information from sensors into a unified data structure. This integration allows synchronized review of visual and operational data while managing storage efficiently through selective retention based on abnormality detection.
Solution Approach 2:
The control device acts as an intermediary that receives both video data and state quantity information, processes their temporal correspondence, and determines storage requirements. This mediator coordinates between the imaging device, sensors, and storage device to balance review capability with resource management.
3Quantity of substance
If only abnormality period data is stored, then storage efficiency is improved, but users lack the ability to confirm operational context and performance trends
Solution Approach 1:
The system preliminarily stores video data in temporary memory with associated timestamps before determining whether to transfer to permanent storage. This allows efficient retrieval of operational context when needed while maintaining high storage efficiency by discarding or archiving normal operation data that isn't associated with abnormal events.
Data Source
AI summary
An excavator management system includes an excavator configured to acquire state quantity information representing a state quantity of the excavator detected by a plurality of sensors; and a mobile terminal. The mobile terminal includes a communication control part configured to transmit, to the excavator, a request signal requesting the excavator to transmit the state quantity information.