Zone Engine Map Layer for Warehouse Robot Traffic Control

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Solution Overview

Problem

In large warehouses, the inefficiency of human operators navigating to pick and place items across vast spaces leads to increased time and reduced order fulfillment efficiency, while robots navigating alongside humans and obstacles face challenges in collision avoidance and traffic management.

Innovation Solution

A zone engine provides a context-augmented map layer that defines zones within a warehouse space using fiducial markers, associating rules with each zone to regulate robot navigation, including speed, occupancy, and traffic flow, and dynamically updates zone boundaries based on marker repositioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If robots are used to navigate and pick items in large warehouse spaces, then productivity increases, but collision risk with humans and obstacles increases

Engineering Contradiction:
Improveorder fulfillment efficiencyVSAvoidcollision risk
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The warehouse space is divided into multiple zones with different navigation rules and risk levels. Robots are assigned to specific zones based on their tasks, and each zone has defined boundaries and access protocols. This segmentation reduces collision risk by limiting robot-human interaction in high-risk areas while maintaining productivity through efficient zone-based task distribution.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A zone management system acts as an intermediary between robots and the warehouse environment. This system monitors robot positions, manages zone access permissions, and coordinates robot movements to avoid collisions with humans and obstacles. The intermediary layer enables high productivity while maintaining safety through centralized control and real-time coordination.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If robots navigate in narrow high-traffic spaces, then access to dispersed items improves, but collision risk increases

Engineering Contradiction:
Improveaccess to itemsVSAvoidcollision risk
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

Zone boundaries and access permissions are dynamically adjusted based on real-time warehouse conditions. In narrow high-traffic spaces, the system can temporarily restrict robot access when human traffic is high, or adjust robot speeds and paths dynamically. This dynamic adaptation allows robots to access dispersed items efficiently while minimizing collision risk through real-time condition-based adjustments.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If temporary impediments are introduced to the warehouse environment, then operational flexibility improves, but robot navigation complexity increases

Engineering Contradiction:
Improveoperational flexibilityVSAvoidnavigation system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The zone management system pre-configures navigation rules and boundaries for potential impediments before they are introduced. When temporary obstacles are placed in the warehouse, the system can quickly activate pre-defined zone modifications rather than recalculating entire navigation paths. This preliminary preparation maintains operational flexibility while reducing navigation system complexity by avoiding real-time complex path recalculation.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3837592B1Zone engine for providing context-augmented map layer
Publication Date: 2025.06.04 LOCUS ROBOTICS CORP
  • EP3837592B1 patent drawingFigure 1
  • EP3837592B1 patent drawingFigure 2A~2B
  • EP3837592B1 patent drawingFigure 3

AI summary

Systems and methods for contextually mapping zones within a space for regulating robotic navigation within the space include defining, by at least one fiducial marker positioned within the space, a zone within the space, associating a rule with the zone, the rule at least partially dictating operation of one or more robots within the zone, and operating the one or more robots within the zone consistent with the rule.