Precision Monitoring in Agriculture

Abstract

This thesis presents a study on the development of a temperature monitoring system tailored for small farm animals, focusing specifically on sheep. The system aims to promptly detect deviations from average body temperature to aid in the early identification of diseases and hypothermia, ultimately contributing to improved animal welfare and reduced mortality rates.

The project concentrates on a proof of concept, driven by the idea of real-time temperature monitoring using the concept behind Precision Livesetock Farming(PLF). A prototype, which has been meticulously fabricated and thoroughly tested for validation, serves as an compelling demonstration of the potential benefits of this technology.

The project entails the creation of an RTD sensor using advanced techniques such as magnetron sputtering, photolithography, and wet etching in a controlled cleanroom environment. A printed circuit board is also designed and fabricated for Near Field Communication. The temperature sensor is strategically placed at the underside of the PCB to extract the sheep’s skin temperature data. The final system utilizes NFC technology to transmit temperature data to a central monitoring system embedded in the animal’s ear tag. The utilized omnidirectional antenna has an average transmission rate of 22mm where Z-direction displays the best range of 37mm and 35mm, respectively. The sensor’s measurement range is aimed at the sheep’s body temperature, which ranges from 39.5°C to 40°C, and it demonstrates good linearity and accuracy when tested in a temperature chamber between 20°C and 50°C.

The thesis advances animal welfare by offering a potential solution for real-time temperature monitoring without the use of invasive procedures.The findings and methods presented here are not just a contribution but a crucial step forward in this important area of veterinary care, guiding further research and development.