针对目前大规模集约化养殖对母猪分娩时间判断主要靠饲养员对母猪产前行为连续观察,存在工作繁重,可能由于疏忽而造成仔猪死亡等问题,设计了一种基于三轴加速度传感器和无线传感网络的母猪产前行为特征实时监测系统.该系统利用无线加速度传感器节点采集母猪产前运动信息,根据不同行为的加速度曲线波动性不同,基于K均值聚类算法对行为特征进行识别分析,并进行实时显示和3G无线传输.试验表明:系统能够快速采集和传输母猪运动信息,正确检测出母猪躺卧、站立、吃料、筑窝等典型行为,正确率为87.93％,工作稳定.%According to the existing problem of breeder continuous observing sows' behavior for sow farrowing judgment, working hard, piglet death due to negligence, monitoring system of sows' behavior before farrowing based on three axis acceleration sensor and WSN was designed. Sows' activities information was collected by using wireless acceleration sensor node. According to different acceleration curve volatility, behavior type was classified by K-means clustering algorithm, displayed real time and wireless transferred by 3G. The experiments showed that the system could acquire and transfer sows' activities information in no time, and the typical behaviors consist of lying, standing, eating and nesting were detected correctly. The accuracy was 87. 93% . The system worked stably.
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