Work Vehicle Camera System for Bird's-Eye View Tracking
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Solution Overview
Problem
Existing display systems for work vehicles fail to accurately depict the vehicle's own conditions and surrounding environment, particularly for vehicles with crawler belt travel devices, as they either omit the vehicle body or only show a small portion, making it difficult to understand track slippage, ground conditions, and the presence of individuals in non-operating cab locations.
Innovation Solution
A display system featuring cameras with inclined optical axes attached to the vehicle, capturing images of both the vehicle body and surrounding environment, which are then combined with a vehicle model to generate a bird's-eye view display image, allowing clear visualization of the vehicle's conditions and environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If cameras are attached to the vehicle body to capture surrounding environment, then the surrounding environment can be imaged, but the vehicle body itself cannot be imaged or only a small portion is visible
Solution Approach 1:
The patent applies dimensionality change by tilting the camera's optical axis downward at a specific angle (30-60 degrees) rather than keeping it horizontal. This angular adjustment allows the camera to capture both the surrounding environment and the vehicle body (particularly the crawler belt and ground contact area) within the same field of view, resolving the contradiction between capturing surroundings and capturing vehicle body conditions
2Reliability
If a previously created vehicle model is displayed instead of camera images, then the vehicle appearance is shown, but the actual working conditions cannot be understood
Solution Approach 1:
The patent merges the vehicle model with actual camera-captured images of the vehicle body in a composite display. The downward-tilted camera captures real images of the vehicle body (crawler belt, ground contact area), which are then overlaid or combined with the virtual vehicle model, providing both the visual representation of the model and the actual working condition information from the camera
Data Source
AI summary
A display system includes a work vehicle, a first camera, a computation device, and a display device. The first camera is attached to one side portion of the work vehicle. The first camera has an optical axis inclined downward with respect to a horizontal direction. The first camera captures a first image including a surrounding environment of the work vehicle and a first vehicle body portion. The computation device generates a display image from the first image. The display image includes a surrounding image that depicts the surrounding environment of the work vehicle in a bird's-eye view, and a vehicle image. The vehicle image may combine a vehicle model depicted in the work vehicle and an image of the first vehicle body portion captured by the first camera, or may be an image of the first vehicle body portion. The display device displays the display image.