Construction Machine Feature Mapping Across Site Coordinate Systems
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Solution Overview
Problem
Operators of construction machines, such as shovels, face challenges in accurately determining the presence and location of predetermined features at a construction site, as visual cues from display devices may be insufficient and feature positions can change, making it difficult to perform tasks accurately.
Innovation Solution
An assisting device for construction machines that uses a processor to acquire feature data from a space recognition device, associating this data with position information in a different coordinate system, and generating combined data to provide accurate location information, aiding operators in navigating and avoiding features during operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If visual cues from display devices are used to determine feature positions, then operators can see feature locations, but accuracy is insufficient and feature position changes are not detected
Solution Approach 1:
The patent combines multiple data sources including space recognition device data, GPS position information, and construction machine position data to create a comprehensive feature position detection system. This merging of multiple information sources resolves the contradiction by providing both visual display capability and accurate, reliable position detection through data fusion from independent sources.
Solution Approach 2:
The patent introduces a position information management system that acts as an intermediary between the space recognition device and the display device. This intermediary processes and validates position data, cross-referencing it with GPS and machine position data to ensure accuracy, thereby resolving the contradiction between visual presentation and measurement precision.
2Ease of operation
If feature positions are determined using a coordinate system relative to the shovel, then position data can be easily obtained, but it is difficult to associate with construction site position information in different coordinate reference systems
Solution Approach 1:
The patent implements a universal position information management system that can handle multiple coordinate reference systems simultaneously. The system maintains position data in various coordinate systems (shovel-relative, GPS, construction site) and provides conversion capabilities, making it adaptable to different coordinate systems while maintaining ease of operation through automated coordinate transformation.
Solution Approach 2:
The patent dynamically changes coordinate system parameters based on the required application. The system can switch between different coordinate reference systems and transform position data accordingly, allowing the same position information to be expressed in different coordinate systems as needed by various functions and displays.
3Device complexity
If simple display devices are used, then the system remains simple, but operators cannot accurately determine presence and location of predetermined features
Solution Approach 1:
The patent enhances the display system by adding spatial dimensions and contextual information layers. Instead of simple 2D displays, the system presents 3D visualizations of feature positions relative to the construction site and machine position, adding depth and spatial context as additional dimensions that improve accuracy without requiring complex hardware modifications.
Solution Approach 2:
The patent creates a virtual copy of the construction site environment with embedded feature position data that is overlaid on or integrated with the actual site view. This virtual model serves as a simplified representation that provides accurate feature location information without requiring complex physical display devices, resolving the contradiction between simplicity and precision.
Data Source
AI summary
An assisting device for a construction machine that provides assistance on work performed by the construction machine includes a processor; and the processor may acquire feature data which is data concerning a position of a predetermined feature existing at a construction site based on an output from a space recognition device; and associate, based on the feature data, position information with respect to the construction site with data concerning the position of the feature to generate combined data, the position information with respect to the construction site being determined in a coordinate reference system that is different from a coordinate system with respect to a shovel.