Traveling Work Machine Turn Guidance for Accurate Start Alignment
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Solution Overview
Problem
Manual turning operations in traveling work machines require skilled operators to accurately navigate the machine body, making the process inefficient and prone to errors, especially when changing directions or aligning with start positions for subsequent work travels.
Innovation Solution
Incorporating a position detector, end determiner, start position calculator, and display system that provides guidance information to help operators navigate turns and align with start positions, using satellite positioning and inertial measurement data to calculate and display the correct start position and separation distances, thereby reducing reliance on operator skill and improving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual turning operations are performed by operators, then the machine can navigate turns and align with start positions, but the process becomes inefficient and prone to errors when changing directions or aligning with start positions
Solution Approach 1:
The system continuously monitors the machine body's position using satellite positioning and inertial measurement, compares it with the target start position, and provides real-time feedback through display information showing separation distance and alignment status. This closed-loop feedback enables operators to make precise adjustments during turning travel, ensuring accurate alignment without requiring high skill levels.
Solution Approach 2:
The control device acts as an intermediary between the positioning system and the operator. It processes raw position data from satellites and inertial sensors, calculates separation distances and alignment angles, and presents processed guidance information to the operator. This intermediary function transforms complex sensor data into actionable guidance, improving both efficiency and reliability.
2Ease of operation
If operators rely on their sense of machine body width and work width for manual turning, then they can perform turning operations, but they require skill development and the process becomes time-consuming
Solution Approach 1:
The system performs self-measurement and self-guidance functions. The positioning detector and inertial measurement unit automatically measure the machine body's position and orientation, calculate the required turning parameters, and provide guidance information without requiring the operator to mentally calculate or estimate distances and angles. This self-service capability eliminates the need for operator skill development in spatial estimation.
Solution Approach 2:
The system replaces the operator's mental and physical estimation processes with automated electronic measurement and calculation systems. Instead of relying on the operator's sense of machine body width and work width, the control device uses satellite positioning and inertial measurement to precisely determine position and calculate alignment parameters, substituting human cognitive processes with automated computational processes.
3Ease of operation
If guidance information is provided to operators during turning travel, then turning can be performed easily regardless of skill level, but the system requires position detectors, end determiners, start position calculators, and display systems
Solution Approach 1:
The control device performs multiple functions: it manages automatic travel control along target headings, detects work travel endpoints, calculates start positions for subsequent work travels, computes separation distances, and provides guidance information during turning travel. By consolidating these diverse functions into a single multi-functional control device, the system achieves comprehensive guidance capability without proportionally increasing overall system complexity.
Solution Approach 2:
The system calculates the start position and separation distance in advance before the operator begins turning travel. The end determiner identifies when work travel has concluded, the start position calculator pre-computes the target alignment position, and the control device prepares guidance information beforehand. This preliminary action ensures that accurate guidance is immediately available when needed, reducing operational complexity during the actual turning maneuver.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system enables more efficient and accurate turning travel by providing clear guidance, allowing operators to perform turns and align with start positions regardless of their skill level, reducing the risk of errors and improving overall operational efficiency.
Implementation Method 1
a position detector to obtain position information of a machine body based on a positioning signal of a navigation satellite
Data Source
AI summary
A traveling work machine includes a position detector capable of obtaining position information of a machine body based on a positioning signal from a navigation satellite, an end determiner capable of determining the end of each of a plurality of instances of work travel, a start position calculator capable of calculating start positions Ls and Ls2, and a display capable of displaying information pertaining to the turning travel. When the end determiner determines the end of the work travel, the start position calculator calculates, based on the position information, the start position Ls2 on one of the left and right with respect to the travel direction of the machine body during the work travel, and the display displays guidance information guiding the turning travel to the start position Ls2.