Radar Density Sensing for Real-Time Silage Compaction
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Solution Overview
Problem
Existing methods for determining the density of harvested materials, such as silage, during compaction are inefficient and require extensive metrological outlay, lacking real-time accuracy and automation potential.
Innovation Solution
A radar-based method and system that uses a density model derived from reference data to ascertain the density of harvested materials by processing reflected radar signals, minimizing the need for current data acquisition and enabling real-time, efficient compaction control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If radar-based density measurement is implemented during compaction, then real-time density determination is achieved, but device complexity increases due to radar sensor and control system requirements
Solution Approach 1:
The patent replaces complex mechanical density measurement systems with a radar-based electromagnetic sensing system. The radar sensor emits electromagnetic signals that penetrate the harvested material and reflect off internal structures, with the control unit processing these signals to determine density without physical contact or complex mechanical sensors.
Solution Approach 2:
The patent introduces radar signals as an intermediary medium to indirectly measure density. Instead of directly measuring physical properties, the system uses electromagnetic wave reflection characteristics as an intermediary to infer density values, simplifying the measurement approach while maintaining accuracy.
2Reliability
If extensive metrological outlay is used for density determination, then measurement reliability improves, but loss of time increases due to extensive data acquisition requirements
Solution Approach 1:
The patent performs preliminary calibration by storing reference data that correlates radar signal characteristics with known density values. During actual measurement, the system only needs to compare current radar readings against this pre-established reference data, eliminating the need for extensive real-time data acquisition while maintaining measurement reliability.
Solution Approach 2:
The patent creates a reference data model that copies and stores the relationship between radar signal patterns and density values under various conditions. This reference model allows the system to determine density by pattern matching rather than extensive measurement, significantly reducing data acquisition time while preserving reliability.
3Productivity
If real-time density monitoring is implemented during compaction, then productivity improves through process optimization, but device complexity increases due to continuous measurement requirements
Solution Approach 1:
The patent integrates the radar sensor and control unit into the existing compaction vehicle, allowing the same system to serve multiple functions: density measurement, process monitoring, and real-time feedback control. This multi-functionality enables real-time monitoring without requiring separate dedicated systems, thus improving productivity while limiting the increase in overall device complexity.
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
Enables precise, real-time density determination with reduced technical effort, improving the quality and efficiency of compaction processes, facilitating automation, and reducing operational costs.
Implementation Method 1
sending radar signals in a direction of the harvested material by a radar sensor; receiving radar signals reflected at the harvested material by the radar sensor
Data Source
AI summary
The present disclosure includes a method for ascertaining a density of a stored harvested material, the surface of which is driven over by a utility vehicle for compaction purposes, the method comprising: sending radar signals in a direction of the harvested material by a radar sensor; receiving radar signals reflected at the harvested material by the radar sensor; providing a density model on the basis of reference data; and ascertaining, via a control unit, the density on the basis of the density model provided and the reflected radar signals received. The system may include the control unit to ascertain the density of the stored harvested material.