Agricultural Agitator Current Sensing System
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Solution Overview
Problem
Agricultural seeding implements face issues with uneven distribution of particulate materials due to undesirable profiles in storage tanks, leading to reduced crop yield and efficiency, primarily caused by friction, clumping, and inactive metering system portions, which existing technologies have not adequately addressed.
Innovation Solution
A particulate material sensing and agitation control system that includes an agitator driven by a drive system powered via an electrical circuit, with a sensing system determining current flow through the circuit to monitor and adjust the particulate material profile, eliminating the need for costly torque sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If torque sensors are used to monitor drive system torque, then measurement precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent replaces mechanical torque sensors with an electrical sensing system that measures current through the electrical circuit powering the drive system. The controller determines torque based on electrical parameters (current, voltage, resistance) rather than mechanical measurement, thereby eliminating complex mechanical sensors while achieving accurate torque monitoring.
Solution Approach 2:
The patent introduces an electrical circuit as an intermediary between the drive system and the sensing system. By measuring electrical parameters in the circuit that are correlated with torque output, the system indirectly determines torque without direct mechanical contact or complex sensing mechanisms.
2Measurement precision
If complex sensing systems are used to monitor particulate material profile, then measurement precision is improved, but ease of operation deteriorates
Solution Approach 1:
The patent replaces complex mechanical sensing systems with an electrical sensing approach. The sensing system measures electrical parameters (current, voltage) through the existing electrical circuit, and the controller processes these electrical signals to determine material profile conditions, eliminating the need for complex mechanical sensors and simplifying operation.
Solution Approach 2:
The existing electrical circuit that powers the drive system also serves as the sensing circuit. The same wires and power supply used for operation are utilized for measurement, eliminating the need for separate sensing infrastructure and reducing operational 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
This solution ensures consistent and even distribution of particulate materials by monitoring and adjusting the material profile within the storage tank, reducing operational complexity and costs while maintaining efficient seeding processes.
Implementation Method 1
The sensing system is configured to determine a voltage differential between the first point and the second point, and the sensing system is configured to determine current flowing through the electrical circuit based on the voltage differential
Data Source
AI summary
A particulate material sensing and agitation control system of an agricultural system includes an agitator configured to induce movement of particulate material through the agricultural system, a drive system coupled to the agitator, and a sensing system configured to determine a current flowing through the drive system. The drive system is configured to move the agitator, and the drive system is powered via an electrical circuit. The sensing system includes a first input coupled to a first point on the electrical circuit, the sensing system includes a second input coupled to a second point on the electrical circuit, the sensing system is configured to determine a voltage differential between the first point and the second point, and the sensing system is configured to determine current flowing through the electrical circuit based on the voltage differential.