Automatic detection of suckling events in lamb through accelerometer data classification

Automated detection of suckling in lamb can assist in extensive-mode breeding by monitoring the lambs welfare.A low-cost detection scheme for suckling episodes is proposed in the paper.The scheme can be deployed in wireless systems for automated animal monitoring.The schemes simplicity and reliability stem from the characteristic pattern of acceleration during the event. We report on an experimental study aimed at establishing a framework for automated detection of suckling episodes in lamb. Suckling turns out to be an important element of the animals behavior, because it occurs early in its development cycle and is directly linked to the fundamental predictors of its success. Our objective was to build an inexpensive, unobtrusive, maintenance-free, and energy-efficient device easily attachable to the lamb that would reliably detect suckling episodes and report them wirelessly to a data collection point. We demonstrate that suckling is characterized by a rather simple and distinguished acceleration signature which makes it possible to detect the event with relatively simple techniques easily implementable within low-end microcontrollers. We propose an algorithm to this end and assess its performance on acceleration data obtained from animals in a farm environment. Our algorithm has been able to detect 95% of all (actual) suckling episodes with less that 10% false indications.