Auto-Resume Control for Mobile Machines After Job Interruptions
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Solution Overview
Problem
Mobile autonomous machines face difficulties in efficiently and accurately resuming or restarting tasks after automatic mode interruptions due to factors like objects in the path or system issues, as existing systems fail to address operator recognition and job site efficiency effectively.
Innovation Solution
An automatic mode resume system for mobile machines that includes a controller and display, allowing for the storage and display of interrupted job sites, enabling users to select and align with resume or restart locations, and conditionally initiating auto mode based on machine positioning relative to these locations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the automatic mode is interrupted and the machine is moved away from the auto stopping location, then the operator can address system issues or handle objects in the path, but it becomes difficult to efficiently and accurately resume or restart the job
Solution Approach 1:
The system stores the interrupted job location and creates a resume location marker before the operator moves the machine away. This preliminary action preserves the exact interruption point, enabling accurate resumption later without requiring the operator to manually recall or estimate the original position.
Solution Approach 2:
The system creates a digital copy or representation of the interrupted job location through GPS coordinates and stores it as a resume location. This digital copy allows the machine to automatically navigate back to the exact interruption point, eliminating the need for manual position recall and ensuring high precision resumption.
2Measurement precision
If the system stores detailed interruption information for multiple job sites, then the accuracy of resume location is improved, but the device complexity increases
Solution Approach 1:
The controller performs multiple functions: it manages GPS positioning, stores interruption information, creates resume locations, and guides the machine back to interruption points. By making the controller multi-functional, the system avoids adding separate dedicated devices for each function, thereby managing complexity while maintaining high accuracy.
Solution Approach 2:
The system combines the storage of job site information, interruption details, and resume location data into a single integrated database within the controller. This merging of data structures and functions reduces overall system complexity compared to having separate systems for each function.
3Productivity
If the system provides comprehensive display information including multiple job sites and locations, then the operator recognition and job site efficiency are improved, but the device complexity increases
Solution Approach 1:
The display system segments information by presenting multiple job sites first, then allowing selection of a specific site to show detailed interruption and resume locations. This hierarchical segmentation prevents overwhelming the operator with all information simultaneously while maintaining comprehensive data availability, thereby improving efficiency without excessive complexity.
Data Source
AI summary
An automatic mode resume system for a mobile machine and a method for resuming a job performed on a job site by a mobile machine is disclosed. The method may include: storing an interrupted status of the job being performed by the mobile machine upon interruption of the job for the job site; displaying multiple job sites on a display of the machine, each job site including a stored interrupted location and resume location; receiving a selection of the job site from a user input; displaying the interruption location and resume location for the selected job site on the display; and conditioning a resuming of the job in an auto mode of the machine based on whether the machine is positioned adjacent the interruption location or resume location at the selected job site.