Loading Bucket Data for Excavated Material Repose-Angle Calculation
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Solution Overview
Problem
Existing loading machines lack an efficient method to calculate the angle of repose of excavated objects held by the bucket, which is crucial for optimizing loading work by ensuring the excavated object is at an optimal weight for the haul vehicle.
Innovation Solution
A method and system that calculate the angle of repose by determining the bucket angle relative to the horizontal plane, measuring the weight of the excavated object, and using shape data of the bucket and object properties to determine the angle of repose, facilitated by a processor and sensors within the loading machine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the angle of repose is calculated using traditional methods, then the loading machine can predict the weight of excavated object, but the calculation process is complex and difficult to implement
Solution Approach 1:
The patent replaces complex mechanical measurement systems with a computational approach using a processor to calculate the angle of repose based on bucket angle sensor data and pre-stored shape data, simplifying the overall system while maintaining accuracy
Solution Approach 2:
The patent uses a copy of the bucket's shape data (stored in memory) combined with actual bucket angle measurements to calculate the angle of repose, avoiding the need for direct complex measurement of the excavated material itself
2Productivity
If the loading machine adjusts the excavated object weight optimally, then loading efficiency improves, but the system requires complex real-time calculations
Solution Approach 1:
The patent pre-stores the bucket's shape data in memory before operation, allowing the system to quickly calculate the angle of repose during loading by simply retrieving and processing this pre-available data rather than performing complex real-time measurements
Solution Approach 2:
The system uses feedback from the bucket angle sensor to continuously monitor and adjust the loading process, enabling real-time optimization of excavated object weight based on actual bucket orientation and pre-calculated angle of repose values
Data Source
AI summary
A method for calculating an angle of repose of an excavated object held by a bucket includes: calculating a bucket angle indicating an angle of the bucket with respect to a horizontal plane in a state where an inclination of a surface of the excavated object held by the bucket is maintained; measuring a weight of the excavated object; and calculating the angle of repose of the excavated object from shape data of the bucket, the bucket angle, and data of the excavated object including the measured weight.