Real-Time Alfalfa Bale Feeding Value Calculation

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Solution Overview

Problem

The separation of leaves from stems during alfalfa hay baling leads to a significant reduction in feeding quality due to changes in the leaf-to-stem ratio, necessitating multiple tests to determine nutrient value, and existing balers lack efficient methods to accurately assess the feeding value of alfalfa in real-time.

Innovation Solution

A system that measures bale weight and moisture using sensors, processing this data to calculate the feeding value, including protein and relative feed value, by considering compaction properties and additional inputs such as baler settings and hay characteristics, allowing for real-time adjustment of nutrient ratios.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If multiple feeding quality tests are conducted to identify different nutrient values between bales, then measurement precision of feeding value is improved, but loss of time and productivity are worsened

Engineering Contradiction:
Improvefeeding value measurement precisionVSAvoidtime for multiple tests
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent replaces mechanical laboratory testing with optical sensing and computational analysis. A camera captures images of the alfalfa bale surface, and image processing algorithms analyze leaf-to-stem ratio, predicting feeding value without physical sample collection and lab analysis. This substitution eliminates time-consuming manual testing while maintaining measurement precision.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent creates a visual copy of the bale surface through imaging to infer feeding quality characteristics. By analyzing the optical characteristics and patterns of leaves and stems in the captured images, the system predicts nutrient value without needing to physically test the material, thus saving time while preserving measurement accuracy.

Inventive Principle:
Principle #26Copying

2Reliability

If leaf-to-stem ratio is monitored to maintain feeding quality, then feeding value is improved, but device complexity increases due to need for multiple sensors and processing systems

Engineering Contradiction:
Improvefeeding value consistencyVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent makes the imaging system multi-functional by using a single camera to perform multiple tasks: capturing bale surface images, analyzing leaf-to-stem ratio, predicting feeding value, and providing visual feedback for bale formation control. This universal approach maintains reliability while avoiding the complexity of multiple specialized sensors.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system uses the bale's own visual characteristics (leaf and stem patterns visible on surface) to determine feeding quality, eliminating the need for external complex measurement devices. The alfalfa bale essentially 'tells' the system its own quality through its visual appearance, simplifying the measurement apparatus while maintaining reliability.

Inventive Principle:
Principle #25Self-service

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 accurate and efficient real-time assessment of alfalfa bale feeding value, reducing the need for multiple tests and improving the consistency of nutrient delivery to livestock by accounting for leaf-to-stem ratios and moisture content.

Implementation Method 1

moisture sensors on the baler

Methodology Applied
Scientific EffectElectrical conductivity: Conduction (electrical)

Implementation Method 2

scale device to weigh the bales being made

Methodology Applied
Scientific EffectGravitation: Gravitation

Implementation Method 3

compression chamber with six hundred pounds per square inch of pressure applied

Methodology Applied
Scientific EffectCompression: Compression

Data Source

PatentUS10203314B2Method for calculating feed value of alfalfa hay using information available at time of baling
Publication Date: 2019.02.12 HARVEST TEC INC
  • US10203314B2 patent drawing
  • US10203314B2 patent drawing
  • US10203314B2 patent drawing

AI summary

A method where the weight of the bale is measured by a scale on the baler, the moisture of the bale is measured by sensors on the baler and this information is sent to a processor. Based on compaction properties of the leaf verses the stem of the alfalfa, the processor calculates a feeding value for the hay including protein, energy and relative feed value on the dry density of the bale. Additional inputs such as the compaction setting of the baler and information about the hay being harvested can also be input into the processor for making adjustment to the feeding value calculation.