Design and implementation of a home embedded surveillance system with ultra-low alert power. - Ying-Wen Bai; Zi-Li Xie; Zonghan Li (IEEE Trans. Consumer Electron., 2011)

Use of a time-variation ultrasonic signal and PIR sensors to enhance the sensing reliability of an embedded surveillance system. - Ying-Wen Bai; Chen-Chien Cheng; Zi-Li Xie (CCECE, 2013)

Use of ultrasonic signal coding and PIR sensors to enhance the sensing reliability of an embedded surveillance system. - Ying-Wen Bai; Chen-Chien Cheng; Zi-Li Xie (SysCon, 2013)