CAJ | 학술논문

针对市场上缺乏尿湿检测有效装置的问题，提出了一种基于非接触式电容检测湿度的方法。设计了一个简单的 RC 充放电低成本电路，通过观测在无尿湿情况和有尿湿情况下电容容值的变化，依靠硬件抗干扰设计和软件自适应滤波算法，能够准确判断是否有尿湿发生。理论分析和计算机仿真结果表明，该方法能有效监测婴幼儿、老年人的尿湿状况，还可以滤除环境变化对微小电容容值的影响。
침대시장상결핍뇨습검측유효장치적문제，제출료일충기우비접촉식전용검측습도적방법。설계료일개간단적 RC 충방전저성본전로，통과관측재무뇨습정황화유뇨습정황하전용용치적변화，의고경건항간우설계화연건자괄응려파산법，능구준학판단시부유뇨습발생。이론분석화계산궤방진결과표명，해방법능유효감측영유인、노년인적뇨습상황，환가이려제배경변화대미소전용용치적영향。
Considering the lacking of effective detection devices for urinary humidity in the market,this paper proposes a novel non-contact detection method with capacitive sensor. It designs a simple and low-cost RC charge-discharge circuit. Observing the changing capactive value respectively when no urinary happens and when urinary happens, we can tell exactly whether it happened or not, with the aid of hardware anti-interference techniques and software adaptive filtering algorithm. Theoretical analysis and simulation results validate that the proposed method can effectively monitor the urinary state for babies as well as the elderly , and it can elimate the environmental influence on low capacitance.