成果報告書詳細
管理番号20140000000734
タイトル*平成25年度中間年報 社会課題対応センサーシステム開発プロジェクト
公開日2015/3/6
報告書年度2013 - 2013
委託先名技術研究組合NMEMS技術研究機構
プロジェクト番号P11006
部署名ロボット・機械システム部
和文要約
英文要約Title: The Sensor System Development Project to Solve Social Problems (FY2011-
FY2014) FY2013 Annual Report

For the electric current/magnetic field sensors, we proposed a clamp-on ammeter
configuration and developed and evaluated a prototype terminal incorporating this
configuration. For the particle sensors, we manufactured a trigger sensor prototype with
sufficient sensitivity to detect pressure changes in the intended class 10000 cleanroom
environment. We investigated methods of improving the sensitivity of sensors for
detecting CO2, verifying that impedance varies in response to changes in CO2
concentration within the range 300-3000 ppm. By evaluating the reproducibility of the
VOC sensor through repeated sensing tests and by developing a temperature-dependent
compensating function, we were able to verify that both resonance frequency stability
and resonance frequency shift were reproducible. In the area of infrared sensors, we
manufactured a prototype circuit board for implementing a motion detection process
using temperature data outputted from the infrared array sensor module that we
developed in FY2012. In regard to the standalone nanofiber power supply module, we
developed and improved a power supply module equipped with a power-storing function
using the organic thin-film solar cells that we developed in FY2013 and was shown to
generate an average output of 170μW under lighting of 500lux. The results of our
research on an ultra-small high-performance standalone power supply system for indoor
use acquired through FY2012 were put to use in developing a standalone power source (a
3V power supply with four cell modules) measuring 2x5 cm. The module was confirmed
to output approximately 130μW of power during wireless communications under 500 lux
of fluorescent light. In the development of an ultra-low-power wireless communication
technology, we prototyped a wireless transmitter/receiver equipped with the custom LSI
that we developed in FY2012 for implementing multiple frequency-shift keying (MFSK)
using orthogonal signals and a spreading code, and confirmed that the transmitter/receiver
enabled sensors to communicate with a green sensor concentrator (GCON). We have
constructed green sensor network systems for conducting demonstration experiments in
the following settings. For smart offices, we developed algorithms of analytical functions
and automated control functions based on specifications identified through the sensor
terminals and network system (objective: an infrared array sensor terminal and GCON
ダウンロード成果報告書データベース(ユーザ登録必須)から、ダウンロードしてください。

▲トップに戻る