Loading Machine Control Using 3D Target Height and Distance Sensing
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Solution Overview
Problem
Current loading machines lack an effective method to accurately measure the distance between the machine and the loading target, hindering automated loading operations.
Innovation Solution
A control device for loading machines that includes a measurement data acquisition unit, a target calculation unit, and a working equipment control unit, which acquires and processes data from a three-dimensional measurement device to calculate height and distance data of the loading target, enabling precise control of the working equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a measurement device is mounted on the loading machine to obtain distance data, then the automation of loading work can be achieved, but the accuracy of measuring the distance between the loading machine and the loading target deteriorates
Solution Approach 1:
The patent introduces a laser radar as an intermediary measurement device that projects laser beams to the loading target and receives reflected light. This intermediary device enables accurate distance measurement without requiring direct contact or complex mechanical measurement systems, thus achieving both automation and measurement precision.
Solution Approach 2:
The patent replaces traditional mechanical measurement methods with optical measurement technology (laser radar). By using laser beams instead of mechanical sensors or contact-based measurement systems, the invention achieves non-contact, high-precision distance measurement that enables automation while maintaining accuracy.
2Productivity
If traditional measurement methods are used, then the device complexity is reduced, but the productivity of loading operations deteriorates
Solution Approach 1:
The laser radar device performs multiple functions: it measures distance to the loading target, determines the position of the upper end portion of the target, and provides data for controlling the working equipment. This multi-functional approach increases productivity without proportionally increasing device complexity.
Solution Approach 2:
The measurement device automatically acquires distance data and the control device automatically calculates control positions and controls the working equipment based on this data. This self-service automation reduces the need for complex manual operation systems while significantly improving loading operation efficiency.
Data Source
AI summary
A control device for a loading machine includes a measurement data acquisition unit that acquires measurement data of a measurement device mounted on the loading machine that includes working equipment, a target calculation unit that extracts, from the measurement data, loading target data being measurement data on a loading target on which excavated material excavated by the working equipment is loaded and calculates, based on the loading target data, height data indicating a height of an upper end portion of the loading target and distance data indicating a distance from the loading machine to the loading target, and a working equipment control unit that controls the working equipment based on the height data and the distance data.