Portable Radar for Noncontact Heart Rate Monitoring and Estrus Detection in Dairy Cows

IF 1 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2026-08-09 Epub Date: 2025-12-30 DOI:10.1002/tee.70233

Yingxiu Li, Ranran Wang, Fuyang Tian, Yudao Li, Zhuolin Wang, Yuxin Yu, Liping Ma, Xin Lu

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引用次数: 0

Abstract

This study introduces a portable radar system for real-time monitoring of respiratory and heart rates in dairy cows. It uses millimeter-wave Frequency Modulated Continuous Wave (FMCW) radar to perform noncontact physiological sensing, reducing behavioral disturbance. The radar system's design prioritizes portability, cost-effectiveness, and robustness, allowing deployment in diverse farm environments. Experimental results show strong agreement between radar-derived and reference measurements, confirmed through correlation analysis and supervised classification. Additionally, the study explores the integration of radar monitoring with advanced data analysis techniques, including Principal Component Analysis (PCA) and Support Vector Machines (SVM), to enhance livestock health management processes. The system is validated for its capability to monitor respiratory and heart rates in real time and effectively classify cows' reproductive states, achieving a classification accuracy of 79.63% for estrus detection. These findings demonstrate the feasibility of radar-based physiological monitoring and support future integration with data-driven management tools. © 2025 The Author(s). IEEJ Transactions on Electrical and Electronic Engineering published by Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.

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用于奶牛非接触式心率监测和发情检测的便携式雷达

本研究介绍了一种用于实时监测奶牛呼吸和心率的便携式雷达系统。它使用毫米波调频连续波（FMCW）雷达进行非接触生理传感，减少行为干扰。该雷达系统的设计优先考虑了便携性、成本效益和稳健性，允许在不同的农场环境中部署。实验结果表明，通过相关分析和监督分类验证了雷达测量值与参考测量值之间的一致性。此外，本研究探讨了雷达监测与先进数据分析技术的整合，包括主成分分析（PCA）和支持向量机（SVM），以加强牲畜健康管理过程。该系统能够实时监测奶牛的呼吸和心率，并有效地对奶牛的生殖状态进行分类，对发情检测的分类准确率达到79.63%。这些发现证明了基于雷达的生理监测的可行性，并为未来与数据驱动管理工具的集成提供了支持。©2025作者。电气与电子工程学报，日本电气工程师学会和Wiley期刊公司出版。

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来源期刊

IEEJ Transactions on Electrical and Electronic Engineering 工程技术-工程：电子与电气

CiteScore

2.70

自引率

10.00%

发文量

199

审稿时长

4.3 months

期刊介绍： IEEJ Transactions on Electrical and Electronic Engineering (hereinafter called TEEE ) publishes 6 times per year as an official journal of the Institute of Electrical Engineers of Japan (hereinafter "IEEJ"). This peer-reviewed journal contains original research papers and review articles on the most important and latest technological advances in core areas of Electrical and Electronic Engineering and in related disciplines. The journal also publishes short communications reporting on the results of the latest research activities TEEE ) aims to provide a new forum for IEEJ members in Japan as well as fellow researchers in Electrical and Electronic Engineering from around the world to exchange ideas and research findings.