Task-Aware Movable Body Speed Control for Worker Safety
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Solution Overview
Problem
Existing vehicle control systems do not consider the work tasks performed by workers on movable bodies, leading to inadequate control for worker or facility operations.
Innovation Solution
A movable body control device that acquires input information from a worker's terminal device regarding their tasks and adjusts the vehicle's speed based on this information, including setting upper speed limits for different tasks and environmental factors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the vehicle travels at high speed to improve productivity, then the work efficiency increases, but the safety and convenience for the worker performing tasks deteriorates
Solution Approach 1:
The vehicle control system dynamically adjusts speed limits based on the worker's task status. When the worker is performing tasks, the vehicle automatically limits speed to a lower range (5-15 km/h). When the worker is not performing tasks, the vehicle can travel at higher speeds (15-30 km/h), thus adapting speed characteristics to different operational conditions
Solution Approach 2:
The system continuously receives feedback from the terminal device about the worker's task status and uses this information to adjust vehicle speed control. The control device monitors task completion status in real-time and adjusts speed parameters accordingly, creating a closed-loop control system that balances productivity and safety
2Reliability
If the vehicle speed is limited to ensure worker safety during tasks, then worker safety improves, but the overall productivity and work efficiency deteriorates
Solution Approach 1:
The system implements dynamic speed adjustment by switching between different speed ranges based on task status. During task execution, the vehicle operates at lower speeds (5-15 km/h) for safety. During non-task periods, the vehicle can operate at higher speeds (15-30 km/h) to maintain productivity, thus resolving the contradiction between safety and efficiency
Solution Approach 2:
The vehicle alternates between different operating modes: a safe低速 mode when the worker is performing tasks and a high-speed mode when tasks are not being performed. This periodic switching of operational states allows the system to prioritize safety during critical periods while maintaining efficiency during non-critical periods
3Ease of operation
If the vehicle automatically controls speed based on task information to improve convenience, then ease of operation improves, but the system complexity increases
Solution Approach 1:
The vehicle control system automatically adjusts speed based on task information received from the terminal device without requiring manual intervention from the worker. The system self-regulates speed parameters according to the worker's task status, reducing the operational burden on the worker while managing the complexity through automated decision-making algorithms
Data Source
AI summary
A movable body control device controls a movable body which a worker who performs a work task at a workplace is capable of boarding and which is capable of traveling in a state where the worker is boarding. The movable body control device includes: an acquisition part that acquires, from a terminal device that is carried by the worker and that receives information which is input by the worker in accordance with the work task, information based on input information which is input by the worker in accordance with the work task; and a control part that controls a speed of the movable body based on the information which is acquired by the acquisition part.