Autonomous Machine Controller Resumes Ripping from Interrupted Location
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Solution Overview
Problem
During autonomous operation of machines like dozers, interruptions occur when the ripping tool encounters obstacles, leading to productivity loss and operator difficulty in resuming operations due to unclear interruption locations and repeated operations.
Innovation Solution
A system with a positioning module, sensor module, and controller that determines the start and end locations of an operation, engages the implement with the work surface, and resumes operation from an interrupted location if the distances from the start and end locations exceed predefined thresholds, ensuring efficient resumption of the ripping operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the machine repeats the ripping operation after an emergency stoppage, then the operator can easily control the machine in autonomous mode, but productivity decreases due to repetitive operations
Solution Approach 1:
The system performs preliminary action by storing the interrupted location and operation state in memory before the operator needs to resume control. When the autonomous mode is re-engaged, the system automatically retrieves and continues from the stored interrupted location, eliminating the need to repeat operations and maintaining high productivity while keeping operation simple.
2Productivity
If the machine skips the ripping operation after an emergency stoppage, then productivity is maintained, but the operator faces difficulty in controlling the machine in autonomous mode due to unclear interruption location
Solution Approach 1:
The system implements feedback by continuously monitoring and storing the machine's location and operation status in memory. After an emergency stoppage, the system provides feedback to the operator about the exact interrupted location and automatically resumes from that precise point when re-engaged, ensuring both productivity maintenance and operational clarity.
3Loss of information
If the operator manually controls the machine after an emergency stoppage, then the interruption location can be identified, but productivity decreases due to manual intervention
Solution Approach 1:
The system applies self-service by automatically storing and managing the interrupted location and operation state in its memory without requiring manual recording by the operator. The system independently retrieves this information and continues autonomous operation from the stored point, eliminating the need for manual intervention while preserving all necessary operational information.
Data Source
AI summary
A system for controlling an operation of a machine is provided. The system includes a controller to communicate with a positioning module disposed on the machine and a sensor module associated with the implement. The controller determines a start location and an end location of the operation, and determines an operating path therebetween. Further, the controller engages the implement with a work surface and moves the machine from the start location. The controller further determines an interrupted location of the machine based on the positioning module and a load acting on the implement. The controller further resumes the operation of the machine from the interrupted location if a first distance between the interrupted location and the start location is greater than a first threshold distance and a second distance between the interrupted location and the end location is greater than a second threshold distance.