Asynchronous Robotic Depot for Hospital Logistics
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Solution Overview
Problem
Current robotic delivery systems in hospitals and other organizations are inefficient, as they require staff to interrupt their patient care activities to load and unload medications and supplies, leading to increased errors, stress, and reduced productivity due to the need for direct interaction with robots.
Innovation Solution
A modular, asynchronous delivery system that uses a depot and mobile robots to enable staff to pick up and drop off items at convenient times, reducing direct contact with robots and allowing for autonomous swapping of items and batteries, thereby minimizing interruptions and optimizing robot movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If staff directly load and unload items from robots, then item delivery can be completed, but staff time is lost and errors increase
Solution Approach 1:
The patent introduces an automated item transfer station as an intermediary between the robot and staff. The robot delivers items to the station, which then automatically transfers them to storage containers, eliminating the need for staff to directly handle robot loading/unloading. This mediator system resolves the contradiction by enabling item delivery completion while freeing staff from error-prone manual tasks.
Solution Approach 2:
The system implements self-service through automated item transfer stations that autonomously receive, store, and dispense items without staff intervention. The robot autonomously navigates to stations, and the stations autonomously manage item transfer using sensors and automated mechanisms. This self-service capability increases staff productivity while maintaining reliability through automated error-checking systems.
2Speed
If robots operate continuously without autonomous swapping, then item delivery speed increases, but human intervention is required frequently
Solution Approach 1:
The patent implements autonomous battery swapping at automated stations. When a robot's battery is depleted, it autonomously navigates to a swapping station where a charged battery is automatically exchanged without human intervention. This self-service mechanism enables continuous robot operation at high speed while eliminating the need for frequent manual battery changes, resolving the contradiction between delivery speed and ease of operation.
Solution Approach 2:
The system performs preliminary actions by pre-charging batteries at automated stations before they are needed. The infrastructure maintains a supply of charged batteries ready for immediate exchange, allowing robots to maintain continuous high-speed operation. This preliminary preparation eliminates waiting time and human intervention, simultaneously improving speed and ease of operation.
3Productivity
If automated swapping systems are implemented, then robot efficiency increases, but infrastructure complexity increases
Solution Approach 1:
The patent divides the automated swapping infrastructure into modular, standardized stations that can be independently deployed. Each station handles specific functions (item transfer, battery swapping) in discrete locations throughout the facility. This segmentation allows robot efficiency to increase through automated operations while infrastructure complexity is managed through modular, scalable deployment rather than a monolithic complex system.
Solution Approach 2:
The automated stations are designed with universal interfaces that can serve multiple robot types and functions. A single station design can handle item transfers for different robot models and perform both item storage and battery swapping operations. This multi-functionality increases robot efficiency through comprehensive automation while reducing infrastructure complexity by eliminating the need for specialized equipment for each function.
Data Source
AI summary
Asynchronous item delivery utilizes a system including a first depot and a first mobile robot at a first site and a second depot and a second mobile robot at a second site. A centralized control system manages asynchronous delivery of items through the first depot and the second depot such that the first mobile robot can retrieve an item from the first depot and deliver the item to a transportation systems for transition to the second site, such that the second depot at the second site can, in an asynchronous fashion, receive the item and deliver the item to the second mobile robot for transportation to the ultimate destination at the second site. Two or more sites can be coordinated by the centralized control system for management of movement of items through a supply chain using asynchronous item delivery and movement through each respective site to an ultimate destination.