Radar-Based Silage Density Estimation for Real-Time Compaction
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Solution Overview
Problem
Existing radar-based methods for determining silage density during compaction require extensive technical equipment and data acquisition, leading to inefficiencies and increased operational costs.
Innovation Solution
A method using a radar sensor to transmit and receive signals, coupled with a density model generated from reference data, allows for real-time determination of silage density without the need for extensive current data acquisition, minimizing technical effort and enabling efficient compaction processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If radar-based sensors and extensive data acquisition equipment are used to determine silage density, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-generating a density model using reference data before the actual measurement process. This model contains pre-calculated relationships between radar signal characteristics and density values, eliminating the need for complex real-time data acquisition and processing equipment during actual silage density measurement.
Solution Approach 2:
The patent uses copying by creating a density model that replicates the relationship between radar signals and density based on reference measurements. This model serves as a simplified copy of the complex physical relationship, allowing density determination without requiring the full complexity of the original measurement and calculation system.
2Measurement precision
If extensive data acquisition and processing is performed during compaction, then measurement precision is improved, but productivity decreases
Solution Approach 1:
By pre-generating the density model with all necessary calculation relationships before the compaction process, the system eliminates time-consuming real-time data processing during actual measurement, thereby maintaining high measurement precision while improving compaction productivity.
Solution Approach 2:
The patent replaces the mechanical process of extensive real-time data acquisition and processing with an information-based approach using the pre-generated density model. This substitution allows rapid density determination during compaction without the productivity loss associated with complex real-time calculations.
3Productivity
If real-time density determination is implemented during compaction, then productivity is improved, but device complexity increases
Solution Approach 1:
The density model is generated in advance using reference data, storing all necessary calculation relationships. During actual compaction, only simple radar signal measurements and model-based calculations are required, achieving real-time density determination without requiring complex real-time processing equipment.
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 determination of silage density, improving feed quality and compaction efficiency while reducing operational costs and workload, supporting partial automation of the compaction process.
Implementation Method 1
Radar signals are transmitted towards the crop material by a radar sensor (e.g., via a transmitting antenna). The radar sensor (e.g., via a receiving antenna) also receives the radar signals reflected by the crop material.
Implementation Method 2
The radar sensor (e.g., via a receiving antenna) also receives the radar signals reflected by the crop material.
Data Source
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Figure 3~4B
Figure 5~7B
AI summary
The invention relates to a method for determining the density (Di_e) of stored crop material (12), the surface (14) of which is driven over by a commercial vehicle (16) for compaction. The density (Di_e) is determined by means of a radar sensor (34), which sends radar signals (36) towards the crop material (12) and receives radar signals (38) reflected from the crop material (12). A density model (Di_mod) is provided based on reference data (d_ref). The density (Di_e) is determined based on the provided density model (Di_mod) and the received reflected radar signals (38). The invention further relates to a system (10) with a control unit (18) for carrying out such a method.