Roof Sensor Layout for 360-Degree Coverage on Compact Track Loaders
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Solution Overview
Problem
Existing work machines, such as compact track loaders, face challenges in achieving full 360-degree sensor coverage while minimizing the number of sensors to reduce costs, especially in semi-autonomous or autonomous operations.
Innovation Solution
A component box is attached to the roof of the machine frame, housing a first lidar sensor at the front corner and a second lidar sensor at the back corner, along with five cameras and strategically positioned antennas, to provide comprehensive 360-degree visual and object detection coverage without excessive sensor interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple sensors are added to achieve full 360 degree coverage, then sensor coverage is improved, but device complexity and cost increase
Solution Approach 1:
Multiple sensors (lidar, cameras, antennas) are integrated into a single component box structure mounted on the machine roof, consolidating what would otherwise be separate mounting locations into one unified housing that provides 360-degree coverage
Solution Approach 2:
The component box serves multiple functions simultaneously: housing lidar sensors for 360-degree detection, mounting cameras for visual coverage, and providing mounting positions for various antennas (GPS, Wi-Fi, 2.4 GHz, 900 MHz), replacing multiple separate mounting structures
2Measurement precision
If sensors are positioned for optimal coverage, then detection accuracy is improved, but sensor interference increases
Solution Approach 1:
Different sensors are positioned at specific locations within the component box (lidar at front and back corners, cameras at various corners and side surfaces) to optimize their individual detection accuracy while minimizing interference from neighboring sensors through strategic spatial separation
Data Source
AI summary
A work machine can include a machine frame; a component box attached to a roof of the machine frame; a first lidar sensor located at a front corner of the component box; and a second lidar sensor located at a back corner of the component box on an opposite side of the component box than the first lidar sensor.