Movable Shelf Identification for High-Throughput Robot Cargo Sorting

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing cargo sorting systems face challenges in efficiently handling multiple shelves simultaneously, leading to complex structures and reduced sorting efficiency, especially when unloading into predetermined cargo boxes on shelves with multiple compartments.

Innovation Solution

A robot cargo sorting system comprising movable shelves with identification devices, sorting robots, unloading robots, detection devices, and a server, which enables flexible shelf transfer and precise unloading into designated cargo boxes using a compact structure with movable shelves and unloading robots that can move in multiple directions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If cargoes are unloaded at predetermined outlets according to region division, then the sorting process is simple, but the ability to handle cargoes and sorting efficiency are limited

Engineering Contradiction:
Improvecargo handling abilityVSAvoidsorting system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent implements dynamic shelf transfer capability where shelves can be moved between different unloading regions based on real-time sorting needs. The shelf transfer identification device detects and tracks shelf positions, enabling the system to dynamically adapt to different sorting configurations rather than being fixed to predetermined outlets.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The sorting system is designed to handle multiple shelves simultaneously across different regions. The shelf transfer mechanism allows the same shelf to serve multiple unloading regions, and the system can process cargoes for multiple destinations concurrently, increasing overall cargo handling ability without proportionally increasing system complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Productivity

If multiple shelves are processed simultaneously to improve cargo handling, then sorting efficiency increases, but structure complexity and control difficulty increase significantly

Engineering Contradiction:
Improvesorting efficiencyVSAvoidmulti-shelf system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The shelf transfer identification device provides real-time feedback on shelf positions and statuses to the control system. This feedback mechanism enables the controller to track and manage multiple shelves simultaneously, coordinating their movements and unloading operations without overwhelming complexity. The identification device acts as a sensor that continuously monitors the system state.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The sorting system processes shelves in manageable segments rather than as a single complex unit. Each shelf can be independently tracked, moved, and unloaded, allowing the system to handle multiple shelves through modular operations. This segmentation reduces control complexity compared to managing a monolithic multi-shelf structure.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If shelves are made movable to enable flexible unloading regions, then space utilization improves, but system complexity and control difficulty increase

Engineering Contradiction:
Improveunloading region flexibilityVSAvoidmovable shelf system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The shelf transfer identification device automatically detects and identifies shelf positions and transfer states without requiring complex external monitoring systems. The shelves are equipped with identification features that enable self-identification during transfer operations, reducing the complexity of the control system needed to manage movable shelves.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP4286065B1Robot cargo sorting system capable of identifying shelf transfer, and sorting method thereof
Publication Date: 2026.04.15 ZHEJIANG LIBIAO ROBOT CO LTD
  • EP4286065B1 patent drawingFigure 1
  • EP4286065B1 patent drawingFigure 2~3
  • EP4286065B1 patent drawingFigure 4~5

AI summary

The robot cargo sorting system capable of identifying shelf transfer, and a sorting method thereof. The sorting system comprises: movable shelves (2), each of which is provided with a plurality of cargo boxes (21) for loading and unloading cargo, the movable shelves (2) being fixedly provided with identification devices (3) and capable of moving to any vacant unloading region; sorting robots (1), a plurality of sorting robots (1) being provided and capable of travelling on a sorting platform (11), and the sorting robots (1) also being capable of transporting received cargo to a designated unloading region for unloading; a sorting robot locating device; an introduction device; loading and unloading robots (5), which can receive cargo unloaded from the sorting robots(1), and can also unload the cargo and load a predetermined vacant cargo box (21) of the movable shelves (2) with same; detection devices (4), which can acquire information of the identification devices (3); and a server, which is connected to controllers of the sorting robots (1) in a wireless mode, and is connected to controllers of the loading and unloading robots (5), the detection devices (4) and the introduction device in a wired or wireless mode. The robot cargo sorting system and the sorting method thereof have the beneficial effects of a compact structure, a large sorting amount, full utilization of pace and high sorting efficiency.