Autonomous trolley system
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Solution Overview
Problem
Aircraft galleys and trolleys face challenges with energy consumption, space efficiency, and crew time management due to the need for separate power sources and storage facilities for heating and cooling, which also contribute to noise and CO2 emissions. Additionally, trolleys are cumbersome and restrict passenger access during boarding.
Innovation Solution
Autonomous and semi-autonomous trolleys equipped with self-contained power sources, such as fuel cell systems or electrical energy storage devices, that include heating, cooling, and drink dispensing systems, allowing for independent operation and flexible placement, reducing the need for dedicated galley space and streamlining crew tasks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If separate power sources (APU or ground power unit) are used to power aircraft components, then power consumption is satisfied, but noise and CO2 emissions increase
Solution Approach 1:
The trolley is equipped with its own power source (battery or fuel cell) that operates independently, allowing it to serve itself without requiring external power sources. This self-powered operation eliminates the need for APU or ground power unit, thereby reducing noise and CO2 emissions while satisfying the power consumption requirements of the trolley's systems.
2Temperature
If dedicated galley space is allocated for heating and cooling systems, then temperature regulation is ensured, but space efficiency is reduced
Solution Approach 1:
The heating and cooling systems are integrated directly into the trolley as separate, self-contained modules rather than being part of a centralized galley system. This segmentation allows the trolley to perform temperature regulation functions independently, eliminating the need for dedicated galley space while ensuring proper temperature control for food and beverage items.
Solution Approach 2:
The trolley is designed as a multi-functional unit that combines serving, heating, cooling, and power generation capabilities in a single mobile platform. This universality allows the trolley to replace multiple separate galley functions, thereby reducing the overall space required in the galley while maintaining all necessary temperature regulation capabilities.
3Ease of operation
If traditional trolleys are used, then crew service capability is maintained, but crew time management is inefficient
Solution Approach 1:
The autonomous trolley is equipped with autonomous navigation and operation capabilities, allowing it to move and service passengers without constant crew intervention. The trolley can autonomously navigate to seating areas, deliver items, and return to charging or storage locations, thereby maintaining full service capability while significantly reducing the time and effort required from crew members.
Solution Approach 2:
Manual mechanical operations (pushing, maneuvering, positioning) are replaced with automated systems including electric motors, autonomous navigation, and intelligent control systems. This substitution maintains the trolley's service function while eliminating the time-consuming manual operations that previously required crew members to physically manage the trolleys.
4Adaptability or versatility
If multiple separate systems (power, heating, cooling) are installed, then functional requirements are met, but device complexity increases
Solution Approach 1:
Multiple separate systems (power source, heating, cooling, storage) are merged into a single integrated trolley platform. The battery or fuel cell power source serves as a central hub that powers all other systems, while the heating and cooling modules are thermally coupled to the same platform. This merging reduces the number of separate installations required while maintaining all necessary functions.
Solution Approach 2:
The trolley is designed as a universal platform that performs multiple functions (power generation, heating, cooling, storage, and autonomous navigation) through integrated systems. This multi-functionality allows a single device to replace multiple separate systems, thereby meeting all functional requirements while reducing overall system complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The autonomous trolleys reduce energy consumption, noise, and emissions by providing on-board power for temperature regulation and other systems, enhance crew efficiency, and minimize space requirements, allowing for flexible trolley placement and faster boarding processes.
Implementation Method 1
The trolley can include a power source. The power source can be a fuel cell system.
Implementation Method 2
The trolley can include a heating system for heating at least some contents of the trolley.
Implementation Method 3
The trolley can include a cooling system for cooling at least some contents of the trolley.
Data Source
AI summary
Autonomous trolleys include an integrated power source, which energy can be utilized for integrated trolley systems such as a wheel assist module, heating module, and cooling module. The power source may include a fuel cell system or a rechargeable electrical energy storage device or a combination thereof. The rechargeable electrical energy storage device can be charged by any other power source, including a fuel cell system. The trolley can also be equipped with a fuel tank for easy and safe refueling of a fuel cell system.