Speed-Adaptive Radar Tilt for Mobile Machine Perception
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Solution Overview
Problem
Perception devices on mobile machines, such as radar devices, have a fixed vertical field of view that is optimized for certain ground speeds, compromising their performance at other speeds, leading to ineffective detection and monitoring of surroundings.
Innovation Solution
A system that includes an actuator and controller to tilt the perception device with respect to the ground plane based on the mobile machine's ground speed, altering its field of view to optimize detection capabilities across varying speeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the perception device is mounted in a fixed orientation on the machine, then the detection performance is optimized for certain ground speeds, but the detection performance is compromised at other ground speeds
Solution Approach 1:
The patent applies the dynamics principle by making the perception device's orientation adjustable rather than fixed. The perception device is mounted on an adjustable support structure that allows it to be positioned at different angles relative to the ground plane, enabling optimization of detection performance across varying ground speeds while maintaining adaptability to different operating conditions
2Measurement precision
If the perception device has a narrow vertical viewing angle, then the vertical field of view is concentrated, but the detection range at different speeds is limited
Solution Approach 1:
The patent applies parameter changes by adjusting the vertical orientation angle of the perception device relative to the ground plane based on ground speed. By changing this orientation parameter, the system optimizes the detection range for different speed conditions while maintaining the concentrated vertical field of view characteristic, thereby resolving the contradiction between field of view concentration and detection range
Data Source
AI summary
A system for operating a radar device of a mobile machine is disclosed. The system includes an actuator operably coupled between the radar device and an exterior of the mobile machine. The system further includes a controller configured to receive an input indicative of a ground speed of the mobile machine. The controller is further configured to control the actuator to tilt the radar device with respect to a ground plane to alter a field of view of the radar device based on the input received by the controller.