Automated Battery Swapping Station for Continuous AGV Operation
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Solution Overview
Problem
Autonomous mobile robots in logistic warehouses face inefficiencies due to battery depletion, requiring manual swapping or onboard charging, which limits their functionality and necessitates additional human operators and designated areas, leading to downtime and reduced system throughput.
Innovation Solution
An automated battery charging/swapping station that automatically swaps depleted batteries with recharged ones, reducing downtime and increasing system throughput by allowing mobile robots to operate continuously without prolonged charging periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If batteries are recharged onboard during operation, then the mobile autonomous robot can continue to operate without manual intervention, but the robot is limited from performing its intended functions during the charging operation
Solution Approach 1:
The battery system is segmented into separate rechargeable battery units that can be independently exchanged. The mobile robot separates the battery function from the main body, allowing the battery to be quickly swapped at automated stations without requiring the robot to shut down or perform charging operations, thus maintaining productivity while achieving automated battery management
Solution Approach 2:
Battery units are pre-charged at automated battery charging/swapping stations before being needed by the mobile robot. The system anticipates battery depletion and prepares replacement batteries in advance, so when the robot arrives at a swapping station, a fully charged battery is already available for immediate exchange, eliminating idle time and maintaining continuous operation
2Loss of time
If manual battery swapping is performed, then the robot can quickly exchange batteries, but additional human operators and designated areas are required
Solution Approach 1:
The battery charging and swapping system operates autonomously without human intervention. Automated charging stations use robotic mechanisms to exchange batteries with mobile robots, and the system self-manages battery tracking, charging status monitoring, and replacement logistics. This eliminates the need for human operators while maintaining rapid battery exchange capabilities
Solution Approach 2:
Manual mechanical battery swapping by human operators is replaced with automated robotic mechanisms. The system uses robotic arms, magnetic attachments, or mechanical interfaces to automatically remove depleted batteries and install charged ones, substituting human labor with automated mechanical systems that operate more consistently and require no training or safety protocols
3Productivity
If a larger fleet of robots is deployed to maintain throughput during battery depletion, then system productivity is maintained, but the cost and complexity of the system increases
Solution Approach 1:
The automated battery swapping system enables continuous operation of each mobile robot by ensuring batteries are always available when needed. Instead of allowing robots to idle during battery depletion, the system maintains a circulating inventory of charged batteries that are rapidly exchanged at automated stations, keeping all robots in continuous productive use and reducing the total number needed
Data Source
AI summary
An automatic battery swapping station, for an automated guided vehicle robot, includes: a housing closure with a narrowed opening forming access from inside the housing closure to the battery of the automated guided vehicle bot outside the automatic battery swapping station; a robotic transfer mechanism having a drive section and an end effector configured to grip the battery so that the battery is moved by the robotic transfer mechanism; and a battery storage inside the housing closure, and where the robotic transfer mechanism is arranged to move between at least one of the battery storage locations and outside the automatic battery swapping station so as to swap the battery of the automated guided vehicle robot outside the automatic battery swapping station with a stored battery in the at least one of the battery storage locations through the narrowed opening.