Crop-Recognition Navigation for GPS-Free Automatic Travel
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Solution Overview
Problem
Existing automatic traveling devices require GPS positioning units, leading to complex configurations and increased costs.
Innovation Solution
An automatic traveling device that uses an acquisition unit to capture images of detection targets, a recognition unit to identify these targets through predetermined determination windows, and an adjustment unit to steer the device based on recognition results, all without the need for GPS positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If GPS positioning unit is used to determine travel route deviation, then positioning accuracy is improved, but device complexity and cost increase
Solution Approach 1:
The patent extracts and removes the GPS positioning unit from the automatic traveling device, replacing it with an image-based recognition system. The camera captures images of detection targets (crops, plants, or field markers) and the control unit calculates position and orientation based on these images, eliminating the need for complex GPS hardware while maintaining positioning capability
Solution Approach 2:
Instead of using GPS satellites to determine position, the system creates a visual copy of the field environment through camera imaging. By recognizing detection targets in the captured images and comparing their positions to predetermined locations, the system derives position and orientation information without requiring GPS positioning infrastructure
2Measurement precision
If multiple determination windows are disposed to be shifted along traveling route, then recognition accuracy is improved, but image processing complexity increases
Solution Approach 1:
The patent divides the image processing task into multiple determination windows that are disposed at different positions along the traveling route. Each window focuses on specific detection targets at different distances, allowing the system to process visual information in segmented regions rather than analyzing the entire image at once, which improves recognition accuracy while managing processing complexity
Data Source
AI summary
To provide an automatic traveling device capable of automatically traveling along a desired route without performing positioning.An automatic traveling device 100 is a device that performs predetermined work on crops S which are detection targets arranged in its traveling direction. A camera 101 acquires image data by capturing an image of the crops S in the traveling direction of the automatic traveling device 100. The recognition unit 102 disposes a plurality of determination windows (such as determination windows 1L and 1R) at positions determined in advance with respect to the image data, and recognizes the crops S in the plurality of determination windows 1R and the like. The adjustment unit 104 adjusts the traveling direction of the automatic traveling device 100 on the basis of a result of recognition performed by the recognition unit 102.