Work Vehicle Control Apparatus Collision Prevention
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Solution Overview
Problem
Productivity in work locations, such as mines, deteriorates due to collisions between traveling work vehicles and obstacles when they deviate from their intended travel routes.
Innovation Solution
A control apparatus for work vehicles that includes a course data acquisition unit, travel range data acquisition unit, detection data acquisition unit, prediction unit, determination unit, and drive control unit, which predicts the vehicle's future position based on detected data and determines whether it remains within a predefined travel range, stopping the vehicle if it does not.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the work vehicle travels autonomously without human intervention, then productivity is improved, but the risk of collision with obstacles increases
Solution Approach 1:
The control apparatus predicts the work vehicle's position in advance by calculating a predicted position based on current position, travel direction, and travel distance. This preliminary position prediction allows the system to proactively identify potential deviations from the travel route before actual collision occurs, enabling preventive control actions.
Solution Approach 2:
The system continuously acquires detection data from detection devices, compares the predicted position with the actual travel route, and adjusts control signals accordingly. This closed-loop feedback mechanism ensures the vehicle remains on course by constantly monitoring and correcting its position based on real-time data.
2Reliability
If the vehicle follows a strict preset travel route, then collision risk is reduced, but the ability to adapt to unexpected obstacles decreases
Solution Approach 1:
The control apparatus dynamically adjusts the travel route by generating a corrected travel route based on the predicted position and detected obstacles. Rather than following a rigid preset route, the system continuously modifies the path in real-time, balancing adherence to the original route with necessary deviations to avoid obstacles and maintain safe operation.
3Productivity
If the vehicle travels at high speed, then productivity is improved, but the severity of potential collisions increases
Solution Approach 1:
The control apparatus applies preliminary anti-action by predicting the vehicle's future position and identifying potential collisions before they occur. By calculating the predicted position based on current travel parameters and comparing it with the travel route, the system takes preventive measures in advance, such as adjusting speed or correcting the path, to avoid collisions entirely rather than reacting after contact occurs.
Data Source
AI summary
A control apparatus of a work vehicle includes a course data acquisition unit acquiring course data indicating a traveling condition of a work vehicle that includes a travel route, a travel range data acquisition unit acquiring travel range data indicating a travel range of the work vehicle that is defined with a preset travel width based on the travel route, a detection data acquisition unit acquiring detection data of a detection device that has detected a travel direction of the work vehicle, a prediction unit predicting, based on the detection data, a prescribed position distant from a current position of the work vehicle traveling according to the course data, a determination unit determining whether the prescribed position exists within the travel range, and a drive control unit stopping traveling of the work vehicle when it is determined that the prescribed position does not exist within the travel range.