http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Operation and Maintenance of In-Situ CO₂ Measurement System Using Unmanned Aerial Vehicles
Kohei Nomura,Hirokazu Madokoro,Takashi Chiba,Makoto Inoue,Takeshi Nagayoshi,Osamu Kiguchi,Hanwool Woo,Kazuhito Sato 제어로봇시스템학회 2019 제어로봇시스템학회 국제학술대회 논문집 Vol.2019 No.10
The aim of this study is to actualize an in-situ measurement system of greenhouse gases using a UAV. This paper presents vertical profiles of CO₂ concentration as a measurement result with operation and long-term maintenance for a periodic flight tests. For this study, a new joint part with a single structure for improving strength of the sensor mount is developed. Moreover, routine maintenance to replace a router and periodic regulation of the analyzer is provided. After updating flight altitude permission over 150 m, we conducted flight tests up to 500 m. We compare individual linear correction and liner regression applied for vertical profiles of CO₂ concentration. We address that correction using linear regression has advantage to reduce burden for in-situ measurement.
FPGA-Based Binary Labeling Signal Transmission System
Toshiyuki Inoue,Kohei Nomura,Ryosuke Noguchi,Natsuyuki Koda,Akira Tsuchiya,Keiji Kishine 대한전자공학회 2019 Journal of semiconductor technology and science Vol.19 No.3
We implemented and evaluated our newly developed binary labeling signal transmission system using field-programmable gate arrays. In this system, the state of “0” or “1” of labeling signals is related to modulation or non-modulation of frame signals, and the labeling signals can be multiplexed to frame signals and transmitted without changing the configuration of the original frame signal. We designed a modulation-system protocol for implementing the above system and propose a digital smoothing technique for stabilizing a phase-locked loop circuit. We verified that our digital smoothing technique prevents bit error of the modulated frame signals in the implemented transmitter. The labeling signal multiplexed to the frame signals is demodulated without bit error in the implemented transceiver.