基于无线传输的蛋鸡体温动态监测装置

Dynamic Monitoring Device of Hens Temperature Based on Wireless Transmission

为了实时监测蛋鸡的体温变化,减少实验人员与动物的接触次数,设计了蛋鸡翼下体温动态监测装置。采用数字温度传感器DS18B20为感温元件,以ATmega 16单片机和nRF2401无线传输模块为核心进行数据采集传输,使用C#语言编写人机交互界面,实现了蛋鸡体温变化的实时采集、存储、显示以及历史数据查询。试验表明,该装置体温测量误差为0.1%,最大传输距离为100 m,鸡佩戴传感器节点传输距离为50 m左右,网络丢包率为0.89%。通过设置不同的采集频率和采取休眠方式可以降低功耗,能够满足测量要求。

A wing temperature dynamic monitoring equipment for hens was designed for monitoring hens body temperature and avoiding direct contact with animals. The system was composed of DS18B20 temperature sensor, ATmega 16 MCU and nRF2401 wireless transmission module. The system programmed with C# language could achieve real-time acquisition, storage, display and inquiry of hen＇s temperature data. Results showed that errors of the proposed device was 0.1% , the maximum transfer distance was 100 m, the transfer distance of sensor node on the hens was 50 m, and the loss rate of network passage was 0.89%. The power consumption was decreased with different collecting frequencies and sleep mode. The proposed device could meet the measuring requirement.