Piglet Birth Detection and Heating Control via Infrared Sensors
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Solution Overview
Problem
Current methods for detecting the onset of piglet birth in hog facilities are not economically viable, leading to high piglet mortality due to crushing, trauma, inanition, splay leg, congenital abnormalities, and other issues, and existing heating systems are not efficiently controlled to reduce energy costs.
Innovation Solution
A temperature-based detection system using infrared sensors to monitor temperature changes in the farrowing crate, triggering a communication alert to operators and automatically activating a heating system to guide piglets away from the sow, while maintaining a suitable temperature curve for the piglets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If close visual monitoring of sows is provided to detect birth onset, then piglet mortality is reduced, but labor costs become prohibitively high
Solution Approach 1:
The system enables automatic birth detection through temperature sensing without requiring continuous human monitoring. The temperature sensor autonomously detects the thermal signature of newborn piglets, triggering alerts and heating activation without human intervention, thus eliminating the need for expensive continuous labor while maintaining high piglet survival rates
Solution Approach 2:
The patent replaces the mechanical/visual monitoring system with an automated thermal sensing system. Instead of human operators visually inspecting sows continuously, an infrared temperature sensor automatically detects the thermal radiation from newborn piglets, converting a labor-intensive mechanical process into an automated electronic detection system
2Reliability
If heating system is continuously activated to protect piglets, then piglet survival is improved, but energy costs increase
Solution Approach 1:
The system activates the heating system in advance upon detecting the thermal signature of a newborn piglet, before the piglet becomes vulnerable to temperature-related mortality. This preliminary heating action ensures the piglet is immediately protected from cold stress while avoiding continuous heating, thereby reducing energy consumption while maintaining high survival rates
Solution Approach 2:
The system uses temperature sensing feedback to control heating activation. When the sensor detects the thermal radiation of a newborn piglet, it triggers the heating system; when no piglets are present or temperature requirements are met, heating is deactivated. This feedback-based control ensures heating is applied only when and where needed, optimizing energy efficiency while protecting piglet survival
3Measurement precision
If temperature sensor is positioned close to detect piglets, then detection accuracy is improved, but risk of sensor damage from sow increases
Solution Approach 1:
The patent positions the temperature sensor in a spatially elevated or remote location, detecting piglets through thermal radiation in the infrared spectrum rather than through direct contact. This dimensional change in detection approach allows accurate temperature measurement from a safe distance, maintaining detection precision while eliminating exposure to harmful factors from the sow
Solution Approach 2:
The system uses infrared thermal radiation as an intermediary to transmit temperature information from the piglet to the sensor without requiring physical proximity. The sensor detects the thermal energy emitted by the piglet through the air, acting as a non-contact intermediary that enables accurate detection while keeping the sensor isolated from harmful environmental factors near the sow
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
Reduces piglet mortality by enabling early operator intervention and optimizing heating system usage, ensuring efficient energy use and protecting piglets from crushing by providing a warm, safe area.
Implementation Method 1
A temperature-based detection system using infrared sensors to monitor temperature changes in the farrowing crate
Implementation Method 2
automatically activating a heating system to guide piglets away from the sow, while maintaining a suitable temperature curve for the piglets
Data Source
AI summary
The number of piglets dying at birth is reduced by providing a temperature sensor in a farrowing crate at the piglet area thereof on a movable cover so that, when the sow is expected to give birth, the sensor is located in the crate at a location to detect the presence of one or more piglets after birth. On detection by a control unit using the sensor signal of the one or more piglets, the sensor communicates a signal to a pager carried by an operator indicating to the operator that birth of piglets is in progress and activates a heating lamp for the piglets in the pen to attract them away from the area of the sow to reduce crushing. The control unit and the sensor also control the heat output. The cover can slide along the piglet area and can lift to expose the piglet area.