Work Machine Position Measurement for Unreachable Distance Points
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Solution Overview
Problem
There is a demand for measuring distances between two points that working equipment of a work machine cannot reach, particularly in challenging environments such as rivers where access is difficult.
Innovation Solution
A measurement system for a work machine comprising a position calculation unit, a working equipment position calculation unit, and a distance calculation unit, which utilize sensors and stored construction data to determine the positions of the work machine and its equipment, enabling distance measurement between these points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If working equipment is used to measure distances at a work site, then direct measurement is possible, but measurement is limited to areas that the equipment can physically reach
Solution Approach 1:
The patent introduces a position sensor as an intermediary device that detects the work machine's position and transmits this information to a position calculation unit. This mediator enables distance measurement between points without requiring physical contact or direct access, as the system calculates positions based on detected coordinate data from satellite positioning or other position detection methods
Solution Approach 2:
The patent replaces the mechanical approach of physically moving working equipment to measure distances with a computational system that calculates distances based on position detection data. The distance calculation unit computes distances between multiple points by processing position information from sensors, eliminating the need for mechanical measurement devices to physically reach all measurement points
2Measurement precision
If working equipment enters difficult-to-access areas like rivers, then direct measurement of distant points becomes possible, but safety risks and operational difficulty increase
Solution Approach 1:
The position sensor acts as an intermediary that captures position information remotely through satellite signals or other detection methods, allowing the system to calculate distances to points in dangerous or inaccessible areas without requiring the work machine or operators to physically enter those areas
Solution Approach 2:
The system creates a digital representation of the work site by detecting and calculating positions of multiple points based on sensor data. This virtual model allows operators to measure distances and plan work in difficult-to-access areas safely from the cab, without physical exposure to hazards
3Device complexity
If a simple position detection system is used, then device complexity is reduced, but the ability to calculate distances between multiple points deteriorates
Solution Approach 1:
The position sensor serves multiple functions: it detects the work machine's position, provides data for calculating positions of multiple points, and enables distance measurements between any combination of points. The position calculation unit and distance calculation unit work together to perform various measurement tasks using the same detected position data, making the system versatile without requiring separate specialized devices for each measurement function
Data Source
AI summary
Disclosed is a measurement system of a work machine, the measurement system including: a position calculation unit that calculates a position of the work machine based on detection data of a position sensor; a working equipment position calculation unit that calculates a position of working equipment provided in the work machine based on the position of the work machine; a construction data storage unit that stores a position of a point predetermined at a work site of the work machine; and a distance calculation unit that calculates a distance between the position of the point and the position of the working equipment.