Work Machine Display System for Operator Skill Evaluation
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Solution Overview
Problem
Operators of work machines struggle to master driving skills for cycle work, which involves repetitive series of work modes, necessitating effective evaluation and feedback to improve performance.
Innovation Solution
A display system comprising a state value acquisition unit, actual value calculation unit, target value setting unit, and display control unit to evaluate and display driving skills for each work mode, using a display device to present actual and target values for improvement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If operators practice cycle work repeatedly to master driving skills, then driving skill level improves, but training time and effort increase
Solution Approach 1:
The system provides real-time feedback by comparing actual driving values against target values for each work mode, enabling operators to immediately understand their performance gaps and adjust their driving techniques without requiring extensive trial-and-error training periods
Solution Approach 2:
The cycle work is divided into multiple work modes (traveling mode, loading mode, transporting mode, discharging mode), and evaluation is performed separately for each mode. This segmentation allows operators to focus on improving specific driving skills in each mode rather than attempting to master the entire cycle simultaneously, reducing overall training time
2Measurement precision
If detailed evaluation for each work mode is implemented, then driving skill mastery improves, but system complexity increases
Solution Approach 1:
The evaluation system is segmented into distinct work mode detectors and evaluation units for each mode (traveling, loading, transporting, discharging). Each unit handles a specific work mode independently, which simplifies the overall system architecture while enabling detailed evaluation for each mode without requiring a single complex monolithic system
Solution Approach 2:
The control device serves multiple functions: it detects work modes, acquires state values, calculates actual values, sets target values, and performs evaluations across different work modes. This multi-functionality reduces the need for separate specialized systems for each evaluation task, thereby reducing overall system complexity while maintaining detailed evaluation capabilities
Data Source
AI summary
A display system includes a state value acquisition unit that acquires a state value of a work machine at the time when the work machine is driven by an operator to implement cycle work for repeating a series of work modes, an actual value calculation unit that calculates, based on the state value, an actual value relating to driving evaluation of the work machine for each of work modes, a target value setting unit that sets a target value relating to driving evaluation for each of work modes, and a display control unit that displays the actual value and the target value on a display device.