Front-Mounted Mower Camera Lens Orientation
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Solution Overview
Problem
Existing mowers require a camera mounted at the rear and high position to achieve a better field of view, increasing the mower's size and manufacturing costs.
Innovation Solution
A mowing device with a camera positioned at the front part of the mower, featuring a rotatable lens with a specific angle range, allowing for improved field of view and reduced size and costs by optimizing camera placement and rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If the camera is mounted at the rear and high position of the mower, then the field of view is improved, but the size of the mower increases and manufacturing costs increase
Solution Approach 1:
The patent inverts the conventional camera mounting position from rear-high to front-low. The camera is mounted at the front part of the mower body, with the lens optical axis inclined downward to form an acute angle with the horizontal direction. This inversion achieves a better field of view for detecting the working area while reducing the mower's overall size and manufacturing costs.
Solution Approach 2:
The patent changes the mounting parameters of the camera: position (front part instead of rear), orientation (lens optical axis inclined downward at acute angle instead of horizontal or upward), and height (lower position instead of high position). These parameter changes resolve the contradiction by achieving adequate field of view without increasing size.
2Difficulty of detecting and measuring
If the camera is mounted at the rear and high position of the mower, then the field of view is improved, but manufacturing costs increase
Solution Approach 1:
The patent inverts the conventional camera mounting position from rear-high to front-low. The camera is mounted at the front part of the mower body, with the lens optical axis inclined downward to form an acute angle with the horizontal direction. This inversion achieves a better field of view for detecting the working area while reducing the mower's overall size and manufacturing costs.
3Loss of information
If the camera captures all information in the field of view, then complete photo information is obtained, but unnecessary information increases and operation steps increase
Solution Approach 1:
The patent applies local quality by directing the camera's lens optical axis to incline downward at an acute angle with the horizontal direction, specifically targeting the working area (lawn or non-lawn surface) in front of the mower. This focused orientation captures only the relevant local information needed for work determination, excluding unnecessary background information, thereby reducing processing complexity.
Solution Approach 2:
The camera is pre-oriented with its optical axis inclined downward to capture images of the working area before the mower actually processes that area. This preliminary positioning ensures that only relevant information is captured from the outset, reducing subsequent processing steps for filtering unnecessary data.
Data Source
AI summary
A mowing device includes a mower; and a camera located at a front part of the mower and oriented in a forward direction of the mower. The camera has a lens. A vertical line is defined from a center of the lens to a traveling surface of the mower. The vertical line and the traveling surface intersect at a first intersection. A horizontal axis is defined from the first intersection in the forward direction of the mower along the traveling surface as a positive direction. A central axis of the lens and the horizontal axis intersect at a second intersection. The second intersection is either in the positive direction of the horizontal axis or coincides with the first intersection.