Dump Truck Load Display Using Bird's-Eye View and Simulated Cargo
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Solution Overview
Problem
Conventional load measuring devices for dump trucks display the load as a numerical value, making it difficult for drivers to intuitively recognize the load situation, and they cannot visually confirm if the cargo is loaded due to the rear placement of the vessel relative to the cab.
Innovation Solution
A load display device that combines images from multiple cameras to create a bird's-eye view, using a detector to assess the load and adjust the size or visibility of a simulated cargo image on the monitor, allowing drivers to intuitively recognize the load status by displaying it on the periphery monitoring screen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the load is displayed as a numerical value on a monitor, then the load measurement precision is improved, but the driver's ability to intuitively recognize the load situation deteriorates
Solution Approach 1:
The patent creates a simulated cargo image that visually replicates the appearance of actual cargo in the vessel. This copy is displayed on the bird's-eye view monitor to represent the load status, allowing drivers to intuitively understand loading conditions without interpreting numerical data. The simulated image serves as a visual counterpart to the physical cargo, making load status immediately recognizable.
Solution Approach 2:
The patent employs color changes in the simulated cargo image to convey different load statuses. By varying colors based on load conditions, the system provides intuitive visual feedback that is immediately recognizable to drivers, transforming abstract load measurements into perceptible visual signals.
2Quantity of substance
If the vessel is placed to the rear of the cab, then the dump truck's cargo capacity is improved, but the driver's ability to visually check cargo loading deteriorates
Solution Approach 1:
The patent introduces a bird's-eye view monitor as an intermediary between the driver and the vessel. This monitor displays a synthesized overhead view that includes the vehicle body and simulated cargo image, allowing the driver to visually inspect cargo loading status without physically accessing the rear vessel. The intermediary system bridges the spatial gap created by rear vessel placement.
Solution Approach 2:
The patent transforms the three-dimensional physical space into a two-dimensional visual representation on the monitor. By creating a bird's-eye view that compresses the spatial relationship between cab and vessel into a flat display, the driver can observe cargo status from a perspective that would be inaccessible in physical space, effectively adding a visual dimension to cargo monitoring.
3Reliability
If multiple cameras are installed to monitor the periphery, then the periphery monitoring capability is improved, but the device complexity increases
Solution Approach 1:
The patent makes the periphery monitoring system serve dual functions: it continues to provide safety monitoring while simultaneously displaying cargo loading status through the bird's-eye view with simulated cargo image. This multi-functionality allows the existing camera infrastructure to contribute to both safety and operational awareness, reducing the need for separate specialized equipment.
Data Source
AI summary
A periphery monitoring device (10) comprises a monitor (50) that displays a bird's-eye image (200) that includes an image of a dump truck (1), a payload meter ECU (21) that detects the load of the dump truck (1), and a controller (20) that switches the size of a cargo image (C1) displayed over the vessel (4) of the dump truck (1) and displays this image on the monitor (50) on the basis of the detection result of the payload meter ECU (21).In a load display device for a dump truck, a plurality of cameras are installed and the load display device monitors the periphery by using a bird's-eye image that combines images obtained by the plurality of cameras. The load display device includes a display component, a detector and a display controller. The display component is configured to display the bird's-eye image including an image of the dump truck. The detector is configured to detect a load of the dump truck. The display controller is configured to switch a size of a simulated cargo image displayed over a vessel of the dump truck based on a detection result of the detector and to display the simulated cargo image on the display component.