Robotic Arm Teat Attachment via Multi-Scan Confirmation
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Solution Overview
Problem
Current systems for teat preparation cup attachment in dairy milking operations are inefficient and struggle to accurately determine teat locations due to cow movement and difficulty in ensuring all teats are prepared before milking.
Innovation Solution
A robotic arm and sensor system that performs multiple scans to confirm teat location accuracy, using a controller to instruct the robotic arm to move closer to the teat after each scan, and attaches the preparation cup only when the correct teat is consistently identified across multiple scans.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a robotic arm is used to automatically attach preparation cups to teats, then productivity and efficiency are improved, but the reliability of accurate teat attachment decreases due to cow movement and difficulty in ensuring all teats are prepared
Solution Approach 1:
The system uses sensors to detect teat locations and provides feedback to the robotic arm controller, which adjusts the robotic arm's movements accordingly. This closed-loop feedback mechanism ensures accurate teat attachment despite cow movement, resolving the contradiction between automated productivity and attachment reliability.
Solution Approach 2:
The robotic arm system is designed to be dynamic and adaptive, continuously adjusting its positioning and movement based on real-time sensor data about teat locations and cow movement. This dynamic adjustment capability maintains high attachment accuracy while preserving automated efficiency.
2Measurement precision
If multiple scans are performed to confirm teat location, then measurement precision and reliability are improved, but the time required for cup attachment increases
Solution Approach 1:
The system performs multiple scans (excessive action) to ensure accurate teat location identification, but only to the extent necessary to achieve reliable attachment. The scanning continues until the teat is positively identified, balancing measurement precision with time efficiency by avoiding unnecessary additional scans.
3Measurement precision
If the robotic arm moves closer to the teat after each scan, then measurement precision is improved, but the complexity of the attachment process increases
Solution Approach 1:
The attachment process is segmented into discrete steps: initial scanning, movement to identified location, confirmation scanning, and final attachment. This segmentation simplifies the overall complex process by breaking it into manageable, repeatable stages, making the system easier to control and monitor.
Data Source
AI summary
A robotic arm maneuvers a teat preparation cup and executes instructions from a robotic arm controller. The controller comprises an interface, a memory, and a processor. The processor instructs the sensor to perform a first scan. If the first scan discovers a first set of teats, the processor moves the robotic arm a first distance and instructs the sensor to perform a second scan. If the second scan discovers a second set of teats, the processor moves the robotic arm to a location under the first teat, and instructs the sensor to perform a third scan. The processor determines if the third scan discovers a third set of teats. If each of the first set, second set, and third set of discovered teats comprises the first teat, the processor instructs the robotic arm to attach the preparation cup to the first teat.