Monitoring Diaper Condition Using the Impedance Variation of a Dipole Antenna
Monitoring Diaper Condition Using the Impedance Variation of a Dipole Antenna
复制标题
使用偶极天线的阻抗变化监测尿布状况
DOI：
10.23919/acess.2018.8669275
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Youngwook Kim
中科院分区：
文献类型：
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作者：
Manroop Turna;Youngwook Kim
为了防止婴儿出现皮疹和皮疹，及时检测尿布上的尿液和粪便非常重要。目前，正在开发几种智能尿布系统，作为一种检测排泄物并提醒看护人更换尿布的手段。我们建议使用一个单一的尿布上的天线的输入阻抗变化来感测婴儿的尿液和粪便。通过使用天线作为传感器，不需要使用其他传感器，尽管默认情况下需要RF发射器。我们将找到一个微带偶极子贴片天线在尿布的底部。该天线的设计谐振频率为5.7 GHz。它可以感知尿液和粪便，我们依靠婴儿排泄尿液或粪便时尿布上天线输入阻抗的变化。尿布被建模为三层，并通过FEKO进行电磁仿真。我们观察不同尿布条件下天线阻抗的变化，并比较结果。
To prevent skin rashes and skin eruption in babies, timely detection of urine and feces on a diaper is important. Currently, several smart diaper systems are being developed as a means of sensing excretion and alerting the caretaker to change the diaper. We propose to use the input impedance variation of a single on-diaper antenna to sense the urine and feces of a baby. By using an antenna as a sensor, there is no need to use other sensors, although an RF transmitter is necessary by default. We will locate a microstrip dipole patch antenna at the bottom of a diaper. The antenna is designed to resonate at 5.7 GHz. It senses urine and feces, for which we rely on the change to input impedance of an on-diaper antenna that results when a baby excretes urine or feces. The diaper is modeled with three layers, and the EM simulation is performed by FEKO. We observe the antenna impedance change with diverse diaper conditions and compare the results.