Capacitance Probe Mastitis Detection System
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Solution Overview
Problem
Current methods for detecting mastitis in dairy cows are ineffective in identifying pre-clinical mastitis and often require post-milking analysis, failing to provide real-time detection and early intervention, which leads to increased costs and reduced milk quality due to the spread of the disease to multiple udder quarters.
Innovation Solution
A system and method that utilizes capacitance probes integrated with milking equipment to detect changes in milk composition by measuring the phase shift of electrical signals passing through the milk, allowing for real-time detection of mastitis in individual quarters before it spreads, using a signal generator and processor to analyze the capacitance effects and compare data from each teat to identify anomalies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional observation methods are used to detect mastitis, then the detection process is simple, but pre-clinical mastitis cannot be detected until it is severe
Solution Approach 1:
The patent replaces manual observation methods with an automated electrical measurement system using capacitance probes. The system uses electrical signals to detect changes in milk composition and udder tissue properties, substituting mechanical/visual inspection with electronic sensing to achieve early detection of sub-clinical mastitis
Solution Approach 2:
The patent introduces capacitance probes as an intermediary sensing mechanism that indirectly detects mastitis by measuring electrical properties of milk and udder tissue. The probes serve as a mediator between the detection system and the biological sample, enabling non-invasive early detection through electrical impedance changes
2Loss of time
If post-milking analysis is used to detect mastitis, then the equipment complexity is reduced, but real-time detection and early intervention are not achieved
Solution Approach 1:
The patent implements preliminary detection by measuring capacitance parameters during the milking process itself, before the milk is collected and stored for later analysis. This allows early identification of mastitis cases while the cow is still at the milking station, enabling immediate intervention
Solution Approach 2:
The patent merges the detection function with the existing milking equipment by integrating capacitance probes into the milking system. The detection process is combined with the routine milking operation, allowing simultaneous milk collection and disease detection without requiring separate post-milking analysis steps
3Reliability
If detection is delayed until clinical mastitis, then treatment costs are reduced, but milk quality and production are significantly affected
Solution Approach 1:
The patent implements a feedback mechanism where capacitance measurements taken during milking are immediately analyzed and compared against established thresholds. When abnormal values indicating mastitis are detected, the system provides immediate feedback to operators, enabling timely intervention before milk quality deteriorates and production losses occur
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
Enables early detection of mastitis, reducing the risk of disease spread and improving milk quality by providing real-time data analysis integrated with the milking process, allowing for timely intervention and reducing economic losses associated with mastitis.
Implementation Method 1
A system and method for non-invasively diagnosing mastitis by sensing capacitance effect of milk
Data Source
AI summary
Mastitis in a milking animal is detected through sensing the capacitance effects in milk. Using frequencies of greater than 60 megahertz applied by a capacitance probe to milk as it streams through otherwise conventional milking equipment during milking, yields a reliably discernable shift in the phase angle, indicating the presence of mastitis.