Crawler Track Kinematics for Continuous Soil Condition Sensing
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Solution Overview
Problem
Existing methods for determining soil properties in agricultural fields rely on visual assessment or random soil measurements, which are subjective and inadequate for continuous and accurate soil condition monitoring.
Innovation Solution
A method using a detection device to observe the kinematic behavior of crawler tracks on agricultural machinery, combined with a predictive model and sensors to infer soil properties such as moisture, structure, and compaction, leveraging the unique compression signature of crawler tracks on different soils.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If visual assessment by agricultural user is used, then ease of operation is improved, but measurement precision deteriorates
Solution Approach 1:
The patent replaces the mechanical/visual assessment method with an automated sensor-based detection system. Sensors detect the kinematic behavior of the crawler track (such as sinkage, deflection, and motion characteristics), and this data is processed by an evaluation device to objectively determine soil properties, eliminating the need for visual assessment by agricultural users.
Solution Approach 2:
The system uses the crawler track's own kinematic behavior during normal operation to infer soil properties. The track belt's interaction with the soil (through sinkage and motion characteristics) provides direct information about soil conditions, allowing the system to self-determine soil properties without requiring separate measurement operations or expert visual assessment.
2Measurement precision
If random soil measurements using stationary or mobile analysis equipment are used, then measurement precision is improved, but productivity deteriorates
Solution Approach 1:
The patent enables continuous soil condition monitoring as the agricultural machine operates through the field. The detection device continuously records the kinematic behavior of the crawler track during movement, providing ongoing soil property data without requiring the machine to stop for random measurements. This continuous measurement approach maintains both high precision and high productivity.
Solution Approach 2:
The system uses the existing crawler track infrastructure (which is already present on agricultural machinery) to serve dual purposes: both for soil cultivation operations and for soil condition monitoring. The evaluation device processes data from the track's kinematic behavior to determine soil properties, making the system multi-functional without requiring separate dedicated measurement equipment.
3Productivity
If crawler track kinematic behavior observation is used, then productivity is improved, but device complexity deteriorates
Solution Approach 1:
The system utilizes the crawler track's own operational characteristics (kinematic behavior, sinkage, deflection) as the measurement signal. Rather than requiring separate measurement devices to contact the soil, the system observes how the track belt naturally interacts with and moves through the soil during normal operation, turning the track itself into the sensor.
Solution Approach 2:
The kinematic behavior of the crawler track serves as an intermediary that indirectly measures soil properties. Instead of directly measuring soil moisture, structure, or compaction, the system measures the track's motion characteristics (sinkage, deflection, acceleration) which are influenced by soil conditions, and then infers soil properties from these intermediate measurements.
Data Source
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Figure 2
AI summary
Method for determining soil properties, in which a detection device (24) is used to observe the kinematic behavior of a crawler track (16a,...,16d) caused by sinking when driving over a compressible subsoil, wherein an evaluation device (26) is used to draw conclusions about at least one parameter characterizing the soil properties based on the observed kinematic behavior of the crawler track (16a,...,16d).