Laser-Guided Mobile Weeder With Movable Reflector Alignment
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Solution Overview
Problem
Existing mobile weeders face challenges in accurately controlling the irradiation position of laser beams due to the distance between the camera and laser irradiation device, requiring correction processes and reducing accuracy.
Innovation Solution
A mobile removal device with a camera, laser oscillator, and guide portion that includes a reflector, allowing the controller to transition between interference and non-interference states to optimize laser beam irradiation by displacing the camera or reflector, ensuring accurate detection and positioning of hindrances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the laser irradiation device is installed at the lower part of the body distanced from the camera, then the device structure is simplified, but the accuracy of the irradiation position control is reduced
Solution Approach 1:
A reflector is introduced as an intermediary component between the laser irradiation device and the target. The reflector receives the laser beam and redirects it to the desired position, enabling independent positioning of the camera and laser device while maintaining precise irradiation control through the mediating reflector element.
2Manufacturing precision
If the reflector is positioned within the imaging range of the camera, then the laser beam path is optimized, but the camera detection of hindrances is interfered with
Solution Approach 1:
The reflector is designed to be movable between two positions: a first position within the imaging range for optimized laser path control, and a second position outside the imaging range for unobstructed camera detection. This dynamic repositioning allows the system to alternate between detection and irradiation modes, resolving the interference conflict.
3Manufacturing precision
If the camera and laser irradiation device are positioned close to each other, then the irradiation position accuracy is improved, but the device complexity increases
Solution Approach 1:
The system resolves the spatial conflict by utilizing the temporal dimension and movable components. The reflector moves between positions to enable both close positioning for accuracy and independent positioning for simplified structure at different operational moments, effectively adding a temporal dimension to the spatial arrangement.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration enables optimal detection and control of laser beam irradiation positions, reducing processing requirements and enhancing accuracy in identifying and removing hindrances such as undesirable plants.
Implementation Method 1
The guide portion includes a reflector configured to reflect the laser beam
Data Source
AI summary
Provided is a mobile removal device configured to irradiate, with a laser beam, a hindrance capable of inhibiting plant growth. The mobile removal device includes a camera, a controller, and a guide portion of the laser beam. The guide portion includes a reflector of the laser beam. The controller displaces at least one of the camera and the reflector to thereby transition between an interference state and a non-interference state, the interference state being a state in which the reflector is located within an imaging range of the camera, and the non-interference state being a state in which the reflector does not interfere with a detection of the hindrance based on the captured image taken by the camera. The controller irradiates the hindrance with the laser beam in the interference state and detects the hindrance based on the captured image in the non-interference state.