Aerial Crop Planting Date Estimation via Vegetation Index

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current methods for determining the date of crop planting in agricultural fields lack efficiency and accuracy, particularly in inaccessible areas, and do not provide timely and objective data for farmers to implement optimal interventions.

Innovation Solution

A method utilizing remote sensing data from aerial images, where a processor calculates a Vegetation Index, cross-correlates actual signatures with historical reference signatures to determine the date of planting, and outputs the estimated planting date, enabling farmers to make informed decisions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional methods are used to determine crop planting dates, then the process is simple, but the accuracy and timeliness of the data are insufficient

Engineering Contradiction:
Improveaccuracy of planting date determinationVSAvoidcomplexity of data processing system
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces traditional mechanical field survey methods with remote sensing technology. Satellites and aircraft capture aerial images that are processed to extract vegetation index data, automatically determining planting dates without requiring physical field visits. This substitution dramatically improves measurement precision while the automated processing reduces operational complexity.

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

Solution Approach 2:

The patent creates a digital copy of the agricultural field through aerial imaging. By capturing the field's visual characteristics and comparing them against historical reference signatures stored in a database, the system determines planting dates without physically visiting the field. This copying approach enables repeated, non-intrusive measurements with high accuracy.

Inventive Principle:
Principle #26Copying

2Area of stationary object

If remote sensing data is collected from inaccessible areas, then coverage is improved, but data processing complexity increases

Engineering Contradiction:
Improvecoverage area of agricultural fieldsVSAvoidcomplexity of image processing system
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent employs a universal processing system that handles diverse aerial images from multiple sources (satellites, aircraft) and applies the same analysis methodology across all images. The system extracts vegetation index data and compares it against historical signatures using standardized algorithms, enabling consistent processing regardless of the specific imaging platform or field location, thus expanding coverage without proportionally increasing complexity.

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

3Loss of time

If traditional crop monitoring methods are used, then the process is straightforward, but timely interventions cannot be implemented

Engineering Contradiction:
Improvetime delay in crop monitoringVSAvoidprecision of crop development assessment
Core Design Contradiction:
Loss of timeVSMeasurement precision

Solution Approach 1:

The patent enables continuous monitoring of agricultural fields through repeated aerial imaging at different growth stages. The system continuously extracts vegetation index data and compares it against historical signatures to track crop development in real-time. This continuous observation allows farmers to receive timely information about crop status and implement interventions at optimal moments, eliminating time delays while maintaining high assessment precision.

Inventive Principle:
Principle #20Continuity of useful action

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

This approach allows for precise and timely determination of crop planting dates, improving crop yields, reducing costs, and minimizing environmental impact by providing objective and recurrent data for farmers and traders.

Implementation Method 1

The remote sensors detect changes in the physical characteristics of the area by measuring the area's reflected and emitted radiation

Methodology Applied
Scientific EffectReflected radiation: Reflection

Implementation Method 2

The remote sensors detect changes in the physical characteristics of the area by measuring the area's reflected and emitted radiation

Methodology Applied
Scientific EffectEmitted radiation: Thermal Radiation

Implementation Method 3

calculates a Vegetation Index of one or more crops growing at the plurality of points selected across the one or more agricultural fields

Methodology Applied
Scientific EffectSpectral reflectance: Reflection

Data Source

PatentUS11978250B2Agricultural crop estimated date of planting
Publication Date: 2024.05.07 INTERNATIONAL BUSINESS MACHINE CORPORATION
  • US11978250B2 patent drawing
  • US11978250B2 patent drawing
  • US11978250B2 patent drawing

AI summary

In an approach for determining the date of planting of a crop growing in an agricultural field, a processor receives an aerial image of one or more agricultural fields in a pre-determined geographical region. A processor selects a plurality of points from the aerial image. A processor calculates a Vegetation Index of one or more crops growing at the plurality of points selected. A processor compares the Vegetation Index calculated for the one or more crops growing at the plurality of points selected to the Vegetation Index known for a plurality of historical reference signatures. A processor generates an actual signature. A processor cross-correlates the actual signature against the plurality of historical reference signatures to measure a degree of similarity. A processor identifies the one or more crops growing in the one or more agricultural fields in the pre-determined geographical region from the cross-correlation.