Seeding Depth Wheel Pressure Calibration Model
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Solution Overview
Problem
Existing methods for calibrating the ground pressure of seeding depth limiting wheels in agricultural seeding are labor-intensive and time-consuming, failing to meet the requirements for rapid calibration and accurate modeling in mass production.
Innovation Solution
A device comprising a main body connected to depth limiting wheels, a pressure adjusting member, a pressure sensor, and a pressure acquisition calibrator that automatically detects and adjusts pressures, and stores data to establish a model for measuring ground pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual recording and manual fitting methods are used for calibration, then the calibration process can be completed with simple equipment, but the calibration is labor-intensive and time-consuming
Solution Approach 1:
The patent replaces manual mechanical operations with an automated calibration system that uses a motor-driven lifting mechanism to adjust wheel pressure and a processor to automatically collect sensor data and fit calibration models. This substitution eliminates manual labor while systematically managing device complexity through integrated automation.
Solution Approach 2:
The calibration system performs self-calibration by automatically adjusting the depth limiting wheel pressure through the lifting mechanism, collecting pressure sensor data, and generating calibration models without requiring external manual intervention. The system serves itself by integrating all calibration functions into an autonomous process.
2Adaptability or versatility
If external dimensions of pressure sensor vary with different structural forms, then the pressure sensor can adapt to different sowing unit structures, but the ground pressure measurement model changes requiring recalibration
Solution Approach 1:
The calibration device is designed with universal adaptability to work with different pressure sensor types and sowing unit structures. The lifting mechanism and pressure adjustment system can accommodate various sensor configurations, and the processor automatically adapts the calibration model based on the specific sensor characteristics, eliminating the need for time-consuming manual recalibration for each sensor type.
Solution Approach 2:
The system automatically adjusts calibration parameters based on the specific sensor and structural configuration being used. The processor dynamically modifies the measurement model parameters according to the actual sensor characteristics and sowing unit structure, enabling rapid adaptation without manual recalibration time.
3Measurement precision
If automated calibration devices are introduced, then rapid calibration and accurate modeling can be achieved, but device complexity increases
Solution Approach 1:
The patent employs automated mechanical systems including a motor-driven lifting mechanism for precise pressure adjustment and electronic sensors for accurate data collection. The processor automatically performs complex calibration calculations and model fitting, replacing manual operations with automated systems that enhance measurement precision while managing complexity through integration.
Solution Approach 2:
The calibration device incorporates feedback mechanisms where the pressure sensor continuously monitors the actual pressure applied by the depth limiting wheels, and this feedback is used by the processor to automatically adjust and refine the calibration model. This closed-loop feedback system ensures high measurement accuracy while the automated nature manages device complexity.
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
The device enables rapid and accurate calibration of ground pressure, reducing labor intensity and improving efficiency, thereby enhancing the accuracy of seed bed solidity control and maximizing sowing quality.
Implementation Method 1
a pressure sensor, arranged on the main body and configured to detect actual pressures output by the pressure adjusting member
Implementation Method 2
a weighing sensor, configured to detect the ground pressure applied by the depth limiting wheels on the ground
Data Source
AI summary
A device for measuring and calibrating the ground pressure of the seeding depth limiting wheels includes: a main body, connected to a pair of depth limiting wheels; a pressure adjusting member, arranged on the main body and configured to adjust a pressure of the depth limiting wheels to ground; a pressure sensor, arranged on the main body and configured to detect an actual pressure output by the pressure adjusting member; and a pressure acquisition calibrator, configured to detect a ground pressure applied by the depth limiting wheels on ground; and automatically fit a plurality of actual pressures and a plurality of ground pressures to establish a model for measuring ground pressure of a pair of depth limiting wheels. The device can automatically acquire a plurality of actual pressures and a plurality of ground pressures to establish a model for measuring ground pressure of a pair of depth limiting wheels.