GPS Visual Calibration for Delivery Point Differentiation
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Solution Overview
Problem
Existing systems, including GPS, fail to provide rapid and accurate identification and characterization of delivery points, particularly in low-visibility conditions such as nighttime newspaper delivery, where many driveways with similar appearances require precise differentiation.
Innovation Solution
A GPS system with enhanced accuracy features, including a detailed route image display, manual position adjustment, and visual calibration using landmarks, allows for precise identification and differentiation of delivery points by compensating for systematic errors caused by atmospheric and environmental factors, and enables differentiation of similar-looking delivery points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If standard GPS systems are used for delivery identification, then basic positioning is provided, but accuracy and reliability are insufficient for differentiating similar delivery points in low-visibility conditions
Solution Approach 1:
The patent introduces visual landmarks as intermediary reference points between the GPS system and delivery locations. These landmarks serve as mediators that help operators visually verify and correct GPS positions, especially in low-visibility conditions where standard GPS accuracy is insufficient for differentiating similar delivery points.
Solution Approach 2:
The system implements feedback through visual calibration where operators compare GPS-indicated positions with actual visual observations of landmarks and delivery points. This feedback loop allows continuous correction of GPS errors and improves both measurement precision and reliability throughout the delivery route.
2Loss of information
If detailed route images with multiple delivery points are displayed, then identification capability is improved, but system complexity increases
Solution Approach 1:
The route image is segmented into distinct delivery point representations, each clearly differentiated on the display. This segmentation allows operators to identify individual delivery points even when multiple points are present, maintaining information completeness while managing display complexity through organized presentation.
Solution Approach 2:
The system adds visual dimensionality to GPS data by displaying detailed route images with graphical representations of delivery points, landmarks, and positional relationships. This dimensional enhancement transforms basic GPS coordinates into rich visual information that preserves delivery point characterization without overwhelming system complexity.
Data Source
AI summary
An accurate global positioning system having a receiver, a display screen, an input device, having capabilities for visual calibration of the system is disclosed. Further methods of operating that system are disclosed.