Underside View Overlay for Dump Truck Cab Monitor
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Solution Overview
Problem
Self-propelled industrial machines, such as dump trucks and hydraulic excavators, face limitations in traveling due to obstacles beneath them, which are not visible to operators, leading to safety concerns and restricted movement.
Innovation Solution
A display device is installed in the cab, featuring an imaging section that captures the underside view, a symbol image storage section, and a superposing process section to create a transparent overlay of the underside image on a symbol image, allowing operators to recognize obstacles and surroundings through a bird's eye view representation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the dump truck has a large lower space for load weight over 100t, then loading capacity is improved, but the risk of obstacles entering the lower portion increases
Solution Approach 1:
The patent implements a real-time feedback mechanism by capturing images from the underside camera and displaying them on a monitor within the cab. This immediate visual feedback allows the operator to detect obstacles in the lower space before they cause harm, enabling timely corrective actions while maintaining the beneficial large lower space design for heavy loading capacity.
Solution Approach 2:
The camera system acts as an intermediary between the operator and the underside area. Since the operator cannot directly observe the space beneath the vehicle, the camera captures and transmits visual information about this hidden area, allowing the operator to perceive and respond to obstacles without physically accessing the dangerous zone.
2Loss of information
If multiple cameras are mounted to capture surrounding images, then recognition of side and back directions is improved, but the complexity of the display system increases
Solution Approach 1:
The patent merges multiple image sources (surrounding cameras and underside camera) into a single integrated display system. The images from different cameras are combined and presented on one monitor within the cab, allowing the operator to simultaneously view both the surrounding area and the underside area without managing multiple separate displays, thus reducing operational complexity.
Solution Approach 2:
The display system is designed to serve multiple functions: it displays images from surrounding cameras for side and back area monitoring, and simultaneously incorporates underside camera images for obstacle detection beneath the vehicle. This multi-functional display reduces the need for separate specialized systems for each monitoring purpose.
Data Source
AI summary
This invention has an object to assist for traveling operation of a self-propelled industrial machine to display underneath image of the self-propelled industrial machine on a monitor of a display device mounted in a operator's cab. The display device of the self-propelled industrial machine according to the present invention is provided for a dump truck, which comprises cameras having field of view to underneath of the dump truck, a symbol image storage section to store a symbol image which is symbolized the dump truck, a superposing process section to make transparent with a predetermined transparent ratio in the symbol image as a transparent region and to superpose an image taken by the camera on the area corresponding to the transparent region as underneath image, and a monitor mounted in a cab of the dump truck for displaying the symbol image composed by the superposing process section.