Teat-Specific Vacuum Control for Milking Systems
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Solution Overview
Problem
Current milking systems face inefficiencies in milk extraction due to unequal milk flow distribution among teats, genetic variations, and teat size/shape differences, leading to potential teat damage from excessive vacuum pressure.
Innovation Solution
A milking system with teat-specific vacuum pressure adjustment using vacuum sensors and processing devices to maintain a desired vacuum pressure level at each teat cup, independently of animal identity, ensuring efficient milk extraction while preventing teat damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the milking vacuum is increased radically to improve milk flow, then milk extraction efficiency is improved, but the teats are exposed to excessive vacuum which may harm the teat
Solution Approach 1:
The system applies different vacuum pressure levels to different teats based on their individual characteristics. Each teat cup is equipped with a vacuum pressure sensor and a vacuum adjustment arrangement that independently controls the vacuum pressure for that specific teat, allowing localized optimization without compromising other teats
Solution Approach 2:
The vacuum pressure is dynamically adjusted during the milking session based on real-time feedback from vacuum pressure sensors. The processing device continuously monitors the vacuum pressure at each teat cup and adjusts the inlet vacuum pressure level to maintain optimal milking vacuum pressure, adapting to changing conditions throughout the milking process
2Device complexity
If the same teat cup/liner size is applied on all the teats independently of the actual teat size, then device complexity is reduced, but milk flow distribution becomes unequal leading to inefficient milking
Solution Approach 1:
The system changes the vacuum pressure parameter for each teat based on its milk flow characteristics. By measuring the vacuum pressure at each teat cup and comparing it with the desired milking vacuum pressure level, the system calculates and applies specific adjustments to achieve optimal milk flow for each teat individually
Solution Approach 2:
The system implements a feedback mechanism where vacuum pressure sensors continuously measure the actual vacuum pressure at each teat cup, and this information is fed back to the processing device which adjusts the vacuum pressure accordingly. This closed-loop control ensures optimal milk flow distribution without requiring complex teat cup selection
3Reliability
If the inlet vacuum pressure level is continuously adjusted for each teat cup, then teat integrity is protected and optimal milk flow is achieved, but the system complexity increases
Solution Approach 1:
The system segments the vacuum pressure control into independent units for each teat cup. Each teat cup has its own vacuum pressure sensor and vacuum adjustment arrangement, allowing individualized control without requiring a completely complex centralized system for each component
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 system enhances milk extraction efficiency, reduces total milking time, and prevents teat injuries by dynamically adjusting vacuum pressure based on real-time measurements, allowing for more animals to be milked per unit time without compromising teat integrity.
Implementation Method 1
a vacuum pump, configured to generate a system vacuum pressure, which may be referred to as system vacuum, at a system vacuum pressure level
Implementation Method 2
a plurality of vacuum pressure sensors, each associated with one teat cup and configured to measure a vacuum pressure level prevailing in the associated teat cup
Implementation Method 3
a plurality of vacuum adjustment arrangements, each associated with one teat cup, and configured to adjust an inlet vacuum pressure level, provided to the respective teat cup
Data Source
AI summary
A milking system includes teat cups connected to a respective milk evacuation tube; a vacuum pump; a milk tank; vacuum adjustment arrangements, configured to adjust an inlet vacuum pressure level, provided to the respectively associated teat cup; vacuum pressure sensors each configured to measure vacuum pressure under each teat; a processing device configured to: set an inlet vacuum pressure level; obtain measurements of a resulting vacuum pressure level of the associated teat cup; compare it with a desired milking vacuum pressure level; calculate an adjusted inlet vacuum pressure level to achieve the desired milking vacuum pressure level; and cause adjustment according to the respectively calculated adjustment, independently of an animal identity.