AGV Protection Region Control for Carrier Size and Speed
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Solution Overview
Problem
Current AGV protection region settings based on maximum carrier size and fixed radii lead to inefficient operation due to excessive space usage, frequent decelerations, and increased collision risks, especially in narrow passages and low-speed scenarios.
Innovation Solution
Adaptive setting of safety protection regions based on carrier size and vehicle speed, utilizing multiple sub-regions for varying conditions, allowing for efficient navigation and collision avoidance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the protection region range is set according to the maximum carrier size, then the safety protection is ensured, but the space utilization is reduced and passage redundancy increases
Solution Approach 1:
The protection region range is dynamically adjusted based on the actual carrier size rather than using a fixed maximum carrier size. The controller receives carrier size information, calculates the corresponding protection region range, and updates the protection region accordingly. This dynamic adjustment ensures that the protection region is large enough for safety when carrying maximum size carriers, but reduced to appropriate sizes when carrying smaller carriers, thereby improving space utilization without compromising safety.
2Reliability
If the protection region range is set according to the maximum vehicle speed, then the collision risk is reduced, but the waiting time for vehicle meeting head-on is significantly increased
Solution Approach 1:
The protection region range is dynamically adjusted based on the actual vehicle speed rather than using a fixed maximum vehicle speed. The controller receives vehicle speed information, calculates the corresponding protection region range, and updates the protection region accordingly. This dynamic adjustment ensures that the protection region is large enough when vehicle speed is high to maintain safe braking distance, but reduced when vehicle speed is low, thereby reducing waiting time for head-on vehicle meetings without compromising collision safety.
3Device complexity
If a fixed radius of protection region is used, then the system complexity is reduced, but the adaptability to different speeds and scenarios is insufficient
Solution Approach 1:
The protection region range is dynamically adjusted based on the actual carrier size and vehicle speed rather than using a fixed radius. The controller receives real-time information about carrier size and vehicle speed, calculates the appropriate protection region range, and updates the protection region accordingly. This dynamic adjustment provides adaptability to different speeds and scenarios while maintaining relatively simple system architecture by using straightforward calculation formulas based on the received parameters.
Data Source
AI summary
The present disclosure relates to a handling equipment, a handling equipment control method, and a controller. The handling equipment (100) includes a controller. The controller executes program instructions to implement the following steps: determining whether the handling equipment (100) carries a carrier (105); determining a vehicle speed of the handling equipment (100); setting a first protection region according to the vehicle speed and a first profile of the handling equipment (100) when the handling equipment (100) does not carry the carrier (105); and setting a second protection region according to the vehicle speed and a second profile of the handling equipment (100) when the handling equipment (100) carries the carrier (105).