Delivery Robot Tray Rotation for Table-Aligned Unloading
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Solution Overview
Problem
Current robot devices face challenges in efficiently delivering objects to target tables, particularly in aligning the open side of the tray with the table upon arrival, which can cause unfamiliarity for users unloading the objects.
Innovation Solution
The robot device includes a movement unit, a body unit with a tray, and a head unit, where the processor controls the body unit to rotate independently of the movement unit as it approaches the target table, ensuring the open side of the tray faces the table, and the head unit rotates to face the table, allowing for seamless unloading and user interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the robot device moves directly to the target table without independent body rotation, then the delivery process is simple and fast, but the tray cannot be properly aligned with the table for easy unloading
Solution Approach 1:
The robot device is divided into independent movement unit and body unit, allowing the body unit to rotate independently of the movement unit. This segmentation enables precise tray alignment with the table while maintaining simple movement control, resolving the contradiction between alignment precision and control complexity.
Solution Approach 2:
The body unit performs preliminary rotation to align the tray with the target table before the movement unit arrives at the final position. This preliminary action ensures proper alignment is achieved in advance, allowing for easy unloading when the robot reaches the table.
2Adaptability or versatility
If the robot device uses a fixed body structure without independent rotation, then the device structure is simple, but it cannot adapt to different table positions and orientations
Solution Approach 1:
The body unit is designed with dynamic rotation capability, allowing it to change its orientation independently while moving to different table positions. This dynamic adaptation enables the robot to handle various table configurations without requiring a completely different structure for each position.
Solution Approach 2:
The independent rotation mechanism of the body unit provides universal adaptability across different table positions and orientations. A single rotation mechanism serves multiple functions by allowing the tray to align with tables at various angles and positions, eliminating the need for position-specific structures.
3Productivity
If the robot device arrives at the table without pre-aligned tray, then the delivery process is fast, but the unloading process becomes slow and cumbersome
Solution Approach 1:
The body unit performs preliminary rotation to align the tray with the target table while the movement unit is still approaching. This preliminary alignment action eliminates the need for time-consuming alignment adjustments after arrival, as the tray is already positioned correctly for immediate unloading.
Solution Approach 2:
The rotation of the body unit continues independently during the movement unit's approach to the table, ensuring that the alignment action is continuous and overlapping with the movement phase. This continuity eliminates idle alignment time and improves overall delivery-unloading efficiency.
Data Source
AI summary
A robot device is provided. The robot includes a movement unit moving the robot device, a body unit coupled to an upper end of the movement unit and including a tray capable of accommodating an object and a support unit supporting the tray at a certain height, a memory, and a processor configured to receive an external input including information about a target table, control, based on the information about the target table, the movement unit to move to the target table, start to rotate the body unit independently of the movement unit as the movement unit is located at a first certain distance from the target table during movement thereto, and stop the rotation of the body unit when a side surface not covered by the support unit among side surfaces of the tray is parallel to a side surface of the target table.