Excavator Trench Shape Derivation via Multi-Clinometer Interpolation
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Solution Overview
Problem
Conventional excavation data processing methods fail to accurately derive the shape value of a trench at the excavation bottom position, as the clinometer is not always positioned at the depth of the excavation bottom, leading to incomplete shape calculations.
Innovation Solution
An excavation data processing method and device that acquire reference part position data, measuring part positions, and inclination angles to derive the relative positions of measuring parts and the excavation bottom position using interpolation processing, enabling the calculation of trench shape values irrespective of the clinometer's position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the clinometer is positioned at a fixed location on the excavating body, then the measurement system is simple, but the trench shape value at the excavation bottom position cannot be accurately derived when the clinometer is not at the excavation bottom depth
Solution Approach 1:
The measurement system is segmented into multiple clinometers positioned at different depths (first clinometer at excavation bottom depth, second clinometer at another depth). This segmentation allows independent measurement at each depth level, enabling accurate derivation of trench shape values specifically at the excavation bottom position while maintaining system simplicity through modular deployment
Solution Approach 2:
The patent introduces an intermediary calculation process that uses data from multiple clinometers positioned at different depths. By interpolating or extrapolating between these measurement points, the system derives the trench shape value at the excavation bottom position even when no clinometer is directly positioned there, acting as a mathematical intermediary to bridge measurement gaps
2Reliability
If a single clinometer is used, then the device complexity is low, but the reliability of trench shape measurement is insufficient when the clinometer position does not match the excavation bottom depth
Solution Approach 1:
The single clinometer is replaced by multiple clinometers positioned at different depths along the excavating body. This segmentation ensures that at least one clinometer (the first clinometer) is positioned at the excavation bottom depth, providing reliable direct measurement data where it is most needed, while additional clinometers provide supplementary data for verification and interpolation
Solution Approach 2:
The system implements feedback by continuously monitoring trench shape at multiple depths and using this information to adjust and refine the derived excavation bottom shape value. The measurement data from multiple clinometers feeds back into the calculation process, allowing the system to compensate for positioning errors and maintain high reliability even when clinometer positions vary
3Adaptability or versatility
If the clinometer position is fixed on the excavating body, then the ease of operation is high, but the adaptability to different excavation bottom positions is poor
Solution Approach 1:
The system transitions from a static single-point measurement approach to a dynamic multi-point measurement system. Multiple clinometers are positioned at different depths and can be selectively activated based on the specific excavation requirements. This dynamic configuration allows the system to adapt to different excavation bottom positions and depths while maintaining operational simplicity through automated data processing and interpolation algorithms
Data Source
AI summary
An excavation data processing method includes: a first acquisition step of acquiring position data of a reference part of an excavating body, position data of a plurality of measuring parts with respect to the reference part in the excavating body, and data indicative of an excavation depth; a second acquisition step of acquiring inclination angle data of the plurality of measuring parts of the excavating body; a first deriving step of deriving a plurality of measurement positions as positions of the plurality of measuring parts from the reference part position data, the plurality of measuring part positions data and inclination angles data; a second deriving step of deriving an excavation bottom position by interpolation processing based on the plurality of measurement positions and the excavation depth; and an output step of outputting information of the excavation bottom position.