Floor-Guide Localization for Precise Autonomous Robot Endpoint Approach
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Solution Overview
Problem
Fulfillment centers face inefficiencies in processing orders due to complex logistics, including delayed packing of multi-item orders and bottlenecks in directing products to packing stations, especially when items are not in the same location or require transfer between fulfillment centers.
Innovation Solution
Implementing autonomous mobile robots with floor-mounted guides that enhance navigation precision and localization, allowing for improved endpoint approach and localization, thereby optimizing the transportation and sorting of containers between fulfillment centers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional navigation methods are used for autonomous robots, then the system complexity is lower, but the navigation precision and localization accuracy deteriorate
Solution Approach 1:
The patent introduces floor-mounted guides as intermediary elements that serve as reference markers for autonomous robot navigation. These guides provide a stable, pre-defined navigation path that the robot can detect and follow, improving localization accuracy without requiring complex autonomous navigation systems. The guide acts as a mediator between the robot's simple detection system and the requirement for precise navigation.
Solution Approach 2:
The patent replaces complex mechanical navigation systems with an optical detection system. Instead of using sophisticated mechanical sensors and complex control algorithms for navigation, the system uses a camera or optical sensor to detect the floor-mounted guide pattern, substituting mechanical complexity with optical field-based detection and image processing.
2Productivity
If manual intervention is used for order consolidation, then the system is simpler to operate, but the throughput and processing speed deteriorate
Solution Approach 1:
The autonomous robot performs order consolidation tasks independently without requiring manual intervention. The robot autonomously navigates to pickup locations, collects items, transports them to consolidation points, and places them in appropriate containers. This self-service capability increases throughput while the standardized floor guides keep the automation system relatively simple to implement and maintain.
3Speed
If traditional sorting methods are used, then the equipment complexity is lower, but the speed of directing products to packing stations deteriorates
Solution Approach 1:
The floor-mounted guides are pre-installed in the facility to define optimal sorting paths and routing. This preliminary action of establishing fixed navigation routes allows the autonomous robot to efficiently direct products to packing stations without requiring complex real-time decision-making or dynamic path planning. The paths are optimized in advance, enabling high-speed sorting operations.
Data Source
AI summary
Systems and methods are disclosed for improved endpoint approach and localization for autonomous mobile robots. In one embodiment, an example system may include a floor-mounted guide disposed on a floor of an environment, and an autonomous mobile robot having a camera and a controller. The autonomous mobile robot may be configured to autonomously navigate in the environment, where the controller can be configured to detect a first edge of the floor-mounted guide using the camera, detect a second edge of the floor-mounted guide using the camera, determine a location of the autonomous mobile robot based at least in part on the first edge and the second edge, and update a navigation path based at least in part on the location.