일정 순환주기의 전원차단 기법을 적용한 2단 저전력 웨이크업 수신기
강호용, 김지은, 윤대영, 유샤화, 웬충기엔, 이상국, 한석균, 표철식, 김내수
- 8285243 (2012.10.09)
- Provided is a low-power wake-up receiver that is sensitive to electric waves, by which power consumed by a radio frequency (RF) transceiver of a sensor node in a ubiquitous sensor network (USN) is minimized. A wake-up receiver waking up a main transceiver includes a duty cycle signal generation unit controlling a duty cycle of a duty cycle signal; a burst signal detection unit receiving an input signal including a burst signal and a data signal based on the duty cycle signal, amplifying the input signal, and, if the amplified input signal is the burst signal, outputting a control signal; and a data signal detection unit re-amplifying the amplified input signal based on the control signal, and, if the re-amplified input signal is the data signal, outputting a wake-up signal. Power supplied to the duty cycle signal generation unit is interrupted based on the control signal and power is re-supplied to the duty cycle signal generation unit based on the wake-up signal.
- KSP 제안 키워드
- Burst signal, Control Signal, Duty cycle(DC), Duty cycling, Generation unit, Input signal, Low-Power, Radio Frequency(RF), Radio frequency (rf), Sensor networks, Sensor node, Signal generation, Wake-up receiver(WuRx), power wake-up, signal based, signal detection, ubiquitous sensor network, wake-up