Working Machine Display System Warning Segmentation
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Solution Overview
Problem
Existing display systems for working machines, such as hydraulic excavators, face challenges in efficiently displaying basic information while also providing detailed warning information during abnormalities, as previous methods either disrupt the visibility of basic information or require cumbersome operator interactions.
Innovation Solution
A display system with a monitor and display controller that maintains basic information visibility by using a simplified basic-information display and a second warning display function, which shows warning details in a free area within the basic information region, along with an importance level determination and optional camera image display for additional information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If warning information is displayed by switching the basic information display to character information, then the warning details can be understood, but the operator cannot confirm basic information at the intended timing
Solution Approach 1:
The display screen is segmented into multiple regions: a basic information display region that continuously shows essential data, and a warning information display region that displays warning icons and detailed character information. This segmentation allows both basic information and warning information to be visible simultaneously without switching, resolving the contradiction between maintaining basic information visibility and displaying warning details.
Solution Approach 2:
The patent transitions from a temporal dimension (switching displays over time) to a spatial dimension (displaying multiple types of information simultaneously in different regions). By arranging basic information and warning information in different spatial zones on the same screen, the system enables the operator to access both types of information at the same time, eliminating the time loss associated with switching displays.
2Ease of operation
If manual switching display is used for warning information, then the operator can control when to view warning details, but the operator must perform switching operations during machine handling
Solution Approach 1:
The display system automatically detects and displays warning information without requiring manual switching operations by the operator. The system serves itself by monitoring system status and presenting relevant warning information proactively in the warning information display region, freeing the operator from the burden of manual switching during machine handling operations.
Solution Approach 2:
The system implements automatic feedback mechanisms where warning information is displayed based on real-time system status detection. When abnormalities are detected, the system automatically presents warning icons and detailed information without requiring operator intervention to switch displays, thereby maintaining both ease of operation and machine handling efficiency.
3Loss of information
If warning information is displayed in overlapped form on basic information, then both basic information and warning details are visible, but the basic information visibility is impaired
Solution Approach 1:
The display is divided into distinct segmented regions: one dedicated to basic information and another to warning information. This spatial segmentation ensures that warning information is displayed in the warning information display region without overlapping or impairing the visibility of basic information in its designated region, maintaining the reliability and clarity of basic information while providing comprehensive warning details.
Solution Approach 2:
Different regions of the display are assigned different functional qualities: the basic information display region maintains high visibility and clarity for essential data, while the warning information display region is optimized for displaying warning icons and detailed character information. This local differentiation of display qualities allows both types of information to be presented effectively without mutual interference.
Data Source
AI summary
A display system for a working machine displays basic information at all times and, in case of an abnormality, displays the details of the warning in addition to the basic information to enable an operator to reliably recognize details of the warning. For example, a first warning display function, upon receiving an abnormality information signal relating to a charge warning, displays an appropriate warning icon in a warning icon display region. A simplified basic-information display function, then displays simplified basic-information images and a second warning display function displays, in a free area of the display, a second warning message inclusive of a “Charge warning” message as display details of the warning icon, and of character information relating to a simplified remedial action. The operator can then reliably recognize the “Charge warning” and understand its details as well, by viewing the second warning message in addition to the warning icon.