Excavator Mirror-View Display for Accurate Distance Judgment
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Solution Overview
Problem
Existing shovel display devices that show overhead view images can make it difficult for operators to accurately determine the distance between the shovel and surrounding objects, particularly in complex work sites with varying elevations.
Innovation Solution
A shovel equipped with image capturing devices and a display system that simultaneously displays left and right mirror images, along with a rearward camera image, to provide a clearer understanding of the shovel's positional relationship with surrounding objects, using a combination of cameras and image processing to generate virtual viewpoint images corresponding to mirror images attached to the shovel's front ends.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If an overhead view image is displayed to show surrounding areas, then the operator can see the surroundings, but the operator cannot accurately determine the distance between the shovel and objects
Solution Approach 1:
The display is divided into multiple regions showing different types of images: overhead view images for general surroundings, mirror images for lateral views, and rearward camera images for rear area monitoring. Each segment serves a specific purpose in providing spatial information.
Solution Approach 2:
The patent transitions from a single overhead view to multiple viewpoint images including mirror images and rearward camera images, adding dimensional perspectives to help operators understand spatial relationships and distances more accurately.
2Loss of information
If multiple image capturing devices are installed to provide comprehensive views, then the operator can understand positional relationships better, but the device complexity increases
Solution Approach 1:
The image capturing devices serve multiple functions: overhead view cameras provide top-down perspective, mirror images provide lateral views, and rearward camera images provide rear area monitoring. Each device type is utilized for multiple display purposes to maximize information value.
Solution Approach 2:
Multiple image streams from different capturing devices are merged and displayed together on a single display device, allowing the operator to view comprehensive spatial information simultaneously without requiring multiple separate display systems.
Data Source
Figure 1A
Figure 1B
Figure 2A
AI summary
A shovel (100) according to an embodiment of the present invention includes a lower traveling body (1), an upper turning body (3) turnably mounted on the lower traveling body (1), a cabin (10) installed on the upper turning body (3), a display device (40) installed in the cabin (10), and image capturing devices (80) attached to the upper turning body (3). The display device (40) is configured to simultaneously display a left mirror image and a right mirror image generated based on an image captured by at least one of the image capturing devices (80). The left mirror image is an image corresponding to a mirror image in a left mirror attached to the left front end of the shovel (100). The right mirror image is an image corresponding to a mirror image in a right mirror attached to the right front end of the shovel (100).