Work Machine Controller Mode Switching for Object Detection
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Solution Overview
Problem
Work machines face challenges in adapting to various environments and operational modes, particularly in transitioning between open spaces and congested areas, requiring a system that can dynamically adjust sensitivity and operational modes for effective object detection and maneuvering.
Innovation Solution
A multiple mode operational system for work machines, incorporating a controller that modifies operational modes based on detected object distance, light conditions, and input signals from control devices, which adjusts hydraulic actuators and power conversion systems to optimize movement and attachment positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the work machine operates in open spaces with wide areas, then maneuvering is easier and visibility is better, but the machine requires lower sensitivity response and larger threshold distances for object detection
Solution Approach 1:
The system dynamically adjusts the operational mode based on detected object distance. When objects are detected beyond a threshold distance, the system switches to a first operational mode with first sensitivity response; when objects are detected within threshold distance, it switches to a second operational mode with second sensitivity response. This dynamic adaptation allows the machine to optimize maneuvering in open spaces while enhancing safety in congested areas.
Solution Approach 2:
The controller modifies operational parameters including sensitivity response, threshold distance, and operational mode based on object detection data. The system changes these parameters automatically according to the detected object's distance from the work machine, enabling seamless transition between different operational conditions without manual intervention.
2Adaptability or versatility
If the work machine operates in congested spaces with limited areas, then maneuvering becomes more difficult and visibility is reduced, but the machine requires higher sensitivity response and smaller threshold distances for object detection
Solution Approach 1:
The system dynamically switches between first and second operational modes based on real-time object detection. In congested spaces, when objects are detected within the threshold distance, the system automatically activates the second operational mode with heightened sensitivity response, providing enhanced awareness and control for difficult maneuvering conditions.
Solution Approach 2:
The object detector continuously monitors the environment and provides feedback to the controller. Based on this feedback regarding object distance and light conditions, the controller adjusts sensitivity response and operational mode, creating a closed-loop system that adapts to congested environment challenges in real-time.
3Device complexity
If the controller uses a single operational mode with fixed sensitivity response, then the system is simpler to control, but the system cannot adapt to varying environmental conditions and object distances
Solution Approach 1:
The controller is designed with multiple operational modes (first and second modes) that can be switched based on environmental conditions. This multi-functionality allows a single control system to handle diverse operating scenarios including open spaces, congested areas, and varying light conditions, eliminating the need for multiple separate control systems.
Solution Approach 2:
The control system transitions from a static single-mode design to a dynamic multi-mode system that automatically adjusts sensitivity response and operational characteristics based on detected object distance and light sensor input, providing environmental adaptability while maintaining unified control architecture.
4Reliability
If the controller dynamically adjusts operational modes based on object detection, then the system enhances safety and productivity, but the system complexity and computational requirements increase
Solution Approach 1:
The system implements feedback control where the object detector continuously monitors the environment and the controller adjusts operational modes based on this feedback. The feedback loop compares detected object distance against threshold values and automatically switches between operational modes, enhancing safety through automated response while using straightforward comparison logic rather than complex algorithms.
Solution Approach 2:
The control system performs self-adjustment based on object detection data without requiring external intervention. The controller automatically determines when to switch between first and second operational modes based on threshold distance comparisons, providing autonomous safety enhancement while maintaining relatively simple control architecture.
Data Source
AI summary
A multiple mode operational system for a work machine may comprise a frame, a ground-engaging mechanism coupled to the frame, an attachment, an object detector, and a multiple mode control system. The multiple mode control system may include a control device and a controller receiving a signal from the control device. The controller may have a first operational mode and a second operational mode. The first operational mode may enable a first sensitivity response to the control device and the second operational mode may enable a second sensitivity response to the control device. The controller may be configured to receive an object signal from the object detector and modify the operational mode of the controller based on a detected distance of the object from a reference point.