Soil Sensors on Planting Machine Ground-Engaging Elements
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Solution Overview
Problem
Agricultural seeding machines lack effective real-time soil characteristic sensing capabilities, which hinders optimal seed placement and fertilizer distribution due to limited understanding of soil conditions during the seeding process.
Innovation Solution
Mounting soil characteristic sensors on various ground-engaging elements of the seeding machine, such as gauge wheels, closing wheels, and opener shanks, to gather data on soil moisture, compaction, temperature, and fertility before, during, and after seed trench opening and closing, allowing for real-time adjustments in seeding and fertilizer distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If soil characteristic sensors are mounted on ground-engaging elements of the planting machine, then real-time soil data is obtained for precise control of seeding and fertilizer application, but the device complexity increases due to additional sensor mounting requirements and data integration systems
Solution Approach 1:
The patent mounts multiple types of sensors (moisture, temperature, conductivity, force, displacement) on existing ground-engaging elements that already perform soil interaction functions. This multi-functional approach allows the same structural components to serve both mechanical soil engagement and sensing purposes, reducing overall system complexity while improving measurement precision.
Solution Approach 2:
The patent uses the ground-engaging elements themselves as intermediaries between the sensing system and the soil. These elements mediate the interaction by providing a physical interface that contacts the soil while carrying sensors, thereby simplifying the deployment architecture compared to separate sensing systems.
2Loss of time
If sensors are mounted on ground-engaging elements that engage soil before trench opening, then early soil condition data is available for optimal seed placement, but the sensors are exposed to harsher mechanical stresses and contamination
Solution Approach 1:
The patent positions sensors on ground-engaging elements that contact the soil before trench opening, allowing preliminary detection of soil conditions. This early detection enables timely adjustments to seeding parameters while the sensors are still protected by the structural support of the ground-engaging elements.
Solution Approach 2:
The patent designs the sensor mounting on ground-engaging elements to provide mechanical protection and stable support, cushioning the sensors from harsh stresses and contamination before they are exposed to the trench environment. This prior protection extends sensor reliability.
3Loss of information
If multiple sensors are deployed at different locations (before, during, after trench opening), then comprehensive soil characteristic data is collected, but the manufacturing and installation complexity increases
Solution Approach 1:
The patent uses the same type of ground-engaging element structure at multiple locations (before, during, after trench opening) to carry sensors. This standardized multi-functional approach allows comprehensive data collection while simplifying manufacturing and installation through component reuse and standardization.
Solution Approach 2:
The patent divides the sensing system into segmented sensor units mounted on different ground-engaging elements at various positions along the trench-opening sequence. This segmentation allows independent installation and calibration of each sensor unit, reducing overall installation complexity while maintaining comprehensive data coverage.
Data Source
AI summary
A soil characteristic sensor is mounted on a soil engaging element of a planting machine. It can be mounted, for instance, on an element that engages the soil before a trench is opened, or after a trench is opened, but before it is closed. It can be mounted on an element that engages the soil in a region of the soil trench, but after the trench is closed. It can be mounted on a scraping element that scrapes a disc, and it can be mounted on wedges or other items that run through the soil, and are carried by shanks.