AGV Battery Exchange Synchronization Control
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Solution Overview
Problem
Automatic guided vehicles (AGVs) in automated logistics systems face inefficiencies due to the time taken to return to a battery exchange base when battery power reaches 30-40%, reducing overall efficiency.
Innovation Solution
A control device that communicates with AGVs and battery exchange devices to select the closest exchange location, synchronize movements, and perform battery exchanges while the AGV is moving, minimizing operational disruption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the AGV returns to a fixed battery exchange base when battery power reaches 30-40%, then the battery can be exchanged, but the time taken reduces the efficiency of the AGV
Solution Approach 1:
The patent divides the battery exchange function into two independent components: a mobile battery exchange device that can move to the AGV's current location, and a fixed base that remains stationary. This segmentation allows the exchange to occur at multiple locations rather than requiring return to a single fixed base, thereby reducing idle time and improving productivity while maintaining exchange reliability
Solution Approach 2:
The mobile battery exchange device acts as an intermediary between the AGV and the fixed battery base. It receives charging requests from the AGV, travels to the AGV's location, performs the battery exchange, and then returns the discharged battery to the fixed base. This intermediary approach enables decentralized exchange operations, eliminating the need for the AGV to travel to the fixed base and thus improving efficiency
2Ease of operation
If the AGV halts operations to exchange the battery, then the exchange can be completed, but operational disruption increases
Solution Approach 1:
The patent implements a dynamic battery exchange system where the mobile exchange device adapts its operation mode based on the AGV's state. When the AGV is stationary, a traditional halt-based exchange is performed. When the AGV is moving, the system synchronizes the exchange operation with the AGV's motion, allowing the battery to be replaced without halting the AGV. This dynamic approach maintains operational continuity while ensuring exchange completion
Solution Approach 2:
The system performs preliminary synchronization calculations to determine the optimal timing and position for battery exchange during AGV movement. By pre-calculating the synchronization parameters and preparing the mobile exchange device in advance, the system enables seamless battery replacement without requiring the AGV to halt, thus maintaining operational continuity
Data Source
AI summary
A battery exchange method is implemented in a control device communicatively coupled to a work machine and a battery exchange device. The method includes receiving a battery exchange request from the work machine, calculating a synchronization location and a synchronization time of the work machine and the battery exchange device, generating pre-judgment information, sending the pre judgment information and a synchronization command to the battery exchange device to control the battery exchange device to move toward the work machine according to the pre-judgment information and the synchronization command, continually receiving the first status information from the work machine and second status information from the battery exchange device, determining whether synchronization of the work machine and the battery exchange device is complete, and sending a battery exchange command to the battery exchange device to control the battery exchange device to exchange the battery of the work machine.