Double-Row Tag Layout for Precise Industrial Vehicle Navigation
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Solution Overview
Problem
Industrial vehicle control systems face challenges in efficiently navigating and operating within complex facilities due to the limitations of existing tag-based navigation technologies, which struggle to accurately manage vehicle functionality and positional data in dynamic environments.
Innovation Solution
The implementation of a tag layout with a double row configuration, including an inner and outer row of tags arranged in an n×m matrix, allows for the successive detection of tags by sensors, enabling precise control of vehicle functionality based on point-of-origin and directional changes, and the use of tag pairs with varying spacings to manage operational functions such as speed and height adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single row of tags is used for navigation, then the device complexity is low, but the measurement precision and reliability of vehicle positioning are insufficient
Solution Approach 1:
The tag layout is segmented into multiple rows (first row, second row, third row) with different configurations. Each row serves specific navigation purposes: the first row with uniform spacing provides baseline positioning, while the second and third rows with varying spacings provide differential measurements that enhance positioning accuracy and enable detection of vehicle directional changes.
Solution Approach 2:
The patent transitions from a single-row linear tag arrangement to a multi-row two-dimensional tag matrix. This dimensional expansion allows the sensor to detect not only position but also directional changes by comparing tag detection patterns across multiple rows, thereby improving measurement precision without significantly increasing overall system complexity.
2Adaptability or versatility
If uniform tag spacing is used throughout the facility, then the manufacturing and installation process is simple, but the system cannot detect vehicle directional changes or provide precise navigation control
Solution Approach 1:
Different regions of the facility have tag rows with locally optimized spacing characteristics. The first row maintains uniform spacing for general positioning, while the second and third rows incorporate varying spacings in specific areas to detect directional changes and provide enhanced navigation control where needed, rather than applying complex spacing uniformly throughout.
Solution Approach 2:
The tag spacing parameter is varied selectively across different rows and locations. By changing the spacing parameter from uniform to non-uniform in specific tag rows, the system gains the ability to detect vehicle directional changes and improve navigation control, while maintaining simpler uniform spacing in other areas to ease manufacturing and installation.
3Reliability
If existing tag-based navigation is used, then the system is simple to implement, but it cannot accurately manage vehicle functionality and positional data in dynamic environments
Solution Approach 1:
The multi-row tag configuration provides feedback mechanisms for vehicle positioning and directional detection. By analyzing the pattern of tag detections across multiple rows with different spacings, the system can reliably determine vehicle position, orientation, and movement direction, thereby improving vehicle control reliability in dynamic environments.
Solution Approach 2:
The tag rows are pre-configured with specific spacing patterns before vehicle operation. The first row with uniform spacing and the second and third rows with varying spacings are installed in advance to create a predetermined detection matrix that enables reliable vehicle positioning and control without requiring real-time system reconfiguration.
Data Source
AI summary
According to one embodiment of the present disclosure, an industrial facility is provided comprising a tag layout and at least one ingress/egress zone. The tag layout comprises at least one double row of tags. The ingress/egress zone is located outside of an area of the vehicle travel plane occupied by the aisle path and is bounded in its entirety by the double row of tags, by two or more double rows of tags, by a combination of one or more double rows of tags and one more selected facility boundaries, or by combinations thereof. The double row of tags is arranged in an n×m matrix that is configured for successive detection of the inner and outer rows of tags that is dependent on the point-of-origin of a sensor transit path across the double row of tags. Additional embodiments are disclosed and claimed.