Milking Robot Cup Attachment for Closely Spaced Teats
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Solution Overview
Problem
Existing milking robots face issues with teats accidentally entering the same milking cup due to their proximity, leading to operational inefficiencies, decreased throughput, and potential harm to the animals.
Innovation Solution
A milking system with a sensor and control arrangement that determines the distance between adjacent teats and selectively attaches the first milking cup to the appropriate teat, using a robot arm and image capture to ensure proper attachment, avoiding simultaneous entry into a single cup.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the robot arm attaches milking cups in a predetermined order, then the milking process is simplified and automated, but two adjacent teats may accidentally enter the same milking cup causing operational failures
Solution Approach 1:
The control arrangement performs preliminary detection of teat positions and calculates distances between adjacent teats before the robot arm begins attachment. This advance preparation allows the system to identify problematic teat pairs and adjust the attachment sequence or positioning to prevent simultaneous entry into the same cup, thereby maintaining high automation while improving reliability
Solution Approach 2:
The system continuously monitors teat positions and distances during the attachment process. When two teats are detected to be within a critical distance threshold, the control arrangement dynamically adjusts the attachment sequence or robot arm positioning based on real-time feedback, preventing attachment failures while maintaining automated operation
2Productivity
If the robot arm moves quickly to increase throughput, then productivity improves, but the precision of teat selection decreases allowing incorrect teat entry
Solution Approach 1:
The control arrangement performs teat detection and distance calculation in advance, before the robot arm begins its high-speed attachment sequence. This preliminary measurement phase allows the system to plan the attachment sequence with full precision, then execute at high speed without compromising accuracy, thereby maintaining both productivity and measurement precision
Solution Approach 2:
The attachment process is divided into distinct phases: a slow, precise detection and measurement phase followed by a fast execution phase. This segmentation allows the system to prioritize measurement precision when it matters most (during teat identification) while maximizing productivity during the actual attachment operation
3Reliability
If manual intervention is implemented to prevent teat jamming, then attachment reliability improves, but productivity decreases due to farmer disturbance and time loss
Solution Approach 1:
The control arrangement autonomously detects problematic teat configurations and self-corrects by adjusting the attachment sequence or positioning without human intervention. The system monitors teat distances, identifies potential jamming scenarios, and automatically modifies its operation to prevent failures, thereby maintaining high reliability while preserving full productivity
Solution Approach 2:
The system uses continuous feedback from sensors to monitor teat positions and automatically adjusts the attachment process in real-time. When two teats are detected to be too close, the control arrangement autonomously modifies the attachment sequence or robot arm positioning, eliminating the need for manual intervention while maintaining both reliability and throughput
Data Source
AI summary
A milking system that includes milking cups, a milking robot with a robot arm configured to attach each of the milking cups to a respective teat, a sensor that detects two adjacent teats, and a control arrangement communicatively connected to the sensor and the robot arm, where the control arrangement is configured to determine a distance between the two adjacent teats, select one of the two adjacent teats to commence attachment of a first milking cup if the distance fulfils a distance criterion, and generate a command to the robot arm to commence the milking cup attachment to the selected teat.