九州大学 研究者情報
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基本情報 研究活動 教育活動 社会活動
野上 大史(のがみ ひろふみ) データ更新日:2018.06.11

助教 /  工学研究院 機械工学部門 設計・生体システム


主な研究テーマ
・微小循環領域におけるレーザドップラ現象の解明
・動物の健康管理用のウエアラブル無線センサ端末の開発
キーワード:マイクロマシン、レーザドップラー、ウエアラブルセンサ
2014.04~2019.03.
研究業績
主要原著論文
1. Nogami Hirofumi, Shozo Arai, Hironao Okada, Lan Zhan, Toshihiro Itoh, Minimized Bolus-Type Wireless Sensor Node with a Built-In Three-Axis Acceleration Meter for Monitoring a Cow’s Rumen Conditions, Sensors, 10.3390/s17040687, 17, 4, 687, 2017.03.
主要学会発表等
1. Hirofumi Nogami, Ryo Inoue, Ryuta Shiraishi, Yuki Seki, and Renshi Sawada, Stress monitoring of cows using an integrated optical photoplethysmographic sensor, BIO4APPS2017, 2018.12, Detecting the stress level of cows is one of the important purposes for a cow health monitoring system. This is because high stress causes not only lowered resistance to illnesses but also estrus failure. Both electrocardiographic monitors and photoplethysmographic (PPG) sensors can measure stress intensity. The electrocardiographic monitors, which can accurately measure the rate and rhythm of heartbeats, are useful to detect stress intensity. However, long-term usage is not suitable due to its operating with electrodes. On the other hand, PPG sensors can be attached to the cow’s tail for long term monitoring. Thus, we have developed wearable type PPG sensors and attempted to detect stress intensity..
2. Hirofumi Nogami, Ryo Inoue, Yuma Hayashida, Hideyuki Ando, Takahiro Ueno, and Renshi Sawada, Multifunctional optical sensor module Integrate1d optical micro displacement sensor and its application to a
photoplethysmographic sensor with measuring contact force, BIOSTEC2018 , 2018.01, Photoplethysmography (PPG) is widely and commonly used, as it produces a wide range of information, such
as stress level, heart rate interval, respiration rate, blood vessel hardness, etc. It is necessary to control the
contact force between a PPG sensor and the measurement location (the skin surface), in order to obtain an
accurate PPG signal. We propose new multifunctional sensor modules that can measure both pulse waves and
contact force. The sensor module has a micro integrated displacement sensor chip with an optical source,
photo diodes, and op-amp circuits, and a gum frame with a mirror. Some incident light penetrates into a finger,
and the scattered light, which contains a biological signal (a pulse wave), is detected by one photodiode. The
photodiode can also detect reflected light from a mirror, which is displaced by a contact force. In this paper,
we fabricate a multifunctional sensor module and attempt to simultaneously measure the pulse wave and
contact force. .
3. 野上大史、野崎太貴、澤田廉士, Wearable Devices for Healthcare, 1stSino-JapanSeminar on Micro/Nano Systems for Biomedical Applications, 2017.03, For the purpose of increased safety and security, wireless sensor network systems are being used increasingly in applications such as structural health monitoring, human health monitoring, agricultural field monitoring, and animal health monitoring [1–4]. Animal health monitoring system can achieve early detection and prevention of diseases and thus reduce economic losses. The wireless sensor nodes attached to animals, in conjunction with a wireless health-monitoring system, detect initial fever, abnormal activity, or stress level of the animals. In this study, we have focused on developing wireless pulse wave sensor to detect stress levels..
4. 野上大史、野崎太貴、澤田廉士, 多層セラミックスパッケージを用いたオペアンプ内蔵超小型MEMS血流量センサの開発, 第8回集積化MEMSシンポジウム, 2016.10, The authors propose a new sensor structure for an integrated laser Doppler blood flow sensor using the multi-layered ceramic substrate. The sensor consisted of a vertical-cavity surface-emitting laser (VCSEL), a photodiode (PD), an Op-amp, a resistor, and a capacitor. Signal of PD was amplified in sensor element, which enabled to decrease reduction of electrical noise. .
5. 野上大史、白石隆太、井ノ上涼、永友 康隆、澤田廉士, Stress monitoring of cow by using pulse wave, BIO4APPS2016, 2016.12, Stress monitoring of cow by using pulse wave.
6. 野上大史、白石隆太、井ノ上涼、澤田廉士, Laser Doppler blood flowmeter for animal health monitoring system, The 7th Japan-China-Korea Joint Conference on MEMS/NEMS2016, 2016.09, The estrus intensity detection of the cow is one of the important purposes for animal health monitoring system. During the time of estrus the engorged vagina can be observed from the outside. The engorged vagina is possible to cause blood flow change. To detect the estrus intensity, we have developed the laser Doppler blood flowmeter sensor element. The sensor element is 3.5 x 5.5 x 1.8mm, which is enable to fabricate wearable wireless sensor node. Using the sensor nodes, we could measure blood flow of the cow in short time. However, measurement of the blood flow was not stable in long term. The cause of the unstable measurement was that the blood flow was sensitive to the contact force between cow’s skin and sensor. The contact force easily changed depending on method of mounting or wagging cow’s tail. In this paper, we incorporated the laser Doppler blood flowmeter sensor element with the force sensor to simultaneously measure the blood flow and the contact force. As a result, we could observe stable measured value of the blood flow and pulse wave at the stable contact pressure. At the unstable contact pressure, the measured value of underwent a lot of changes. In addition, the pulse wave couldn’t be observed. Thus, we propose that the measurement of the blood flow need to correct for the influence of the contact force..
7. 野上 大史, 三浦 亮太郎, 岡田 宏尚, 前田 龍太郎, 伊藤 寿浩, Wireless temperature sensor nodes in the Appressed Base of a Calf’s tail, BIO4APPS2015, 2015.12.
8. 野上 大史, 新井 鐘蔵, 岡田 宏尚, 伊藤 寿浩, 牛のルーメンモニタリングシステムのための3軸加速度無線センサ端末の開発, 2015年精密工学会秋, 2015.09, We successfully fabricated a minimized wireless sensor node capable of monitoring long term (>600 days) rumen conditions. Rumen conditions had been evaluated by wireless sensor nodes having pH measurements..
9. 野上 大史, 岡田 宏尚, 宮本 亨, 前田 龍太郎, 伊藤 寿浩, Wearable wireless sensor nodes for an animal health monitoring system, IUMRS-ICA 2014, 2014.08, [URL], To achieve the goal of creating a safer and more secure society, wireless sensor network technology has been a promising approach for a variety of applications, such as structural health monitoring, human body monitoring and animal health monitoring. Animal health monitoring system can achieve early detection and prevention of diseases and thus reduce economic losses. The wireless sensor nodes attached to animals, in conjunction with a wireless health-monitoring system, detect initial fever or abnormal activity of the animals. In this study, we have focused on developing the toughness activity sensors for chickens and the flexible temperature sensors for calves..
10. 野上 大史, 超小型MEMS血流量センサとその応用例, 2014年度日本生理人類学会夏季セミナー, 2014.09.
11. 野上 大史, Temperature sensor for an early diagnosis system of pneumonia in calves, The 3rd Singapore-Japan Research Exchange Seminar, 2014.12, Calves are less able to fight virus or bacterium, and predisposed to respiratory disease such as pneumonia. The death and disease accidents caused by respiratory disease are the highest in all accidents. The effective means for early detection of the respiratory disease are to measure rectal temperature with a thermometer. However the mean cannot be frequently conducted on account of spending too effort in the farm. As a means of requiring little effort, we have developed wireless sensor nodes. The primary advantages of the sensor nodes are flexible and slightly temperature sensor pats. The temperature sensor was mounted on the flexible substrate, and the thickness was 0.8 mm. Thus, we can easily attach the sensor nodes to the base of the calf’s tail, which is one of the highest skin temperature parts, and success to measure the skin temperature..
12. 野上 大史, 岡田 宏尚, 新井 鐘蔵, 前田 龍太郎, 伊藤 寿浩, Minimize Wireless Sensor Node Built-in 3-Axis Acceleration Meter for cow’s Rumen Monitoring System, IEEE SENSORS, 2014.11, [URL], We succeed to fabricate minimize wireless sensor node which can monitor rumen condition for long term (600 days over). In previous work, to monitor rumen condition, the wireless sensor node can evaluate the rumen condition with pH measurement system. But the sensor nodes cannot be used for two or three months limited by the volume of the internal liquid of the reference electrode. Also, the sensor nodes are very big along of the internal liquid, which can be though given by mouth of the cow. Thus, we work a new method to monitor rumen
condition with 3-axis acceleration meter. We fabricate the wireless sensor nodes built into 3-axis acceleration meter. Using the sensor nodes, we compare the rumen motility of the force transducer measurement with the 3-axis acceleration data of our sensor nodes. As a result, our sensor nodes can detect sign of the
ruminal typany. In addition, the optimum frequency of the measurement and transmitting turns out 5 seconds. Then, the power consumption is 0.18mA, and the theoretically period of use is 600 days over. Thus, we succeed to develop the wireless sensor nodes which can detect rumen sickness for long term..
学会活動
所属学会名
エレクトロニクス実装学会
日本機械学会
IEEE
電気学会
精密工学会
学協会役員等への就任
2015.04~2019.03, エレクトロニクス実装学会マイクロメカトロニクス実装技術委員会, 幹事.
学会大会・会議・シンポジウム等における役割
2018.10.30~2018.11.01, 第35回「センサ・マイクロマシンと応用システム」シンポジウム, 論文委員.
2018.03.02~2018.03.02, 第6回バイオメカニクス研究センター&エレクトロニクス実装学会九州支部 合同研究会, 司会(Moderator).
2017.03.03~2017.03.03, 第5回バイオメカニクス研究センター&エレクトロニクス実装学会九州支部 合同研究会, 司会(Moderator).
2016.09.12~2016.09.14, 日本機械学会 2016年度年次大会, 実行委員補助業務.
2015.12.14~2015.12.16, BIO4APPS2015, Local Chair.
2015.10.02~2015.10.03, 日本機械学会 第26回バイオフロンティア講演会, 座長(Chairmanship).
2015.02.06~2015.02.07, 第3回バイオメカニクス研究センター&エレクトロニクス実装学会九州支部 合同研究会, 座長(Chairmanship).
2015.09.14~2015.09.15, 戦略的イノベーション創造プログラム(次世代農林水産業創造技術) 「生体センシング技術を活用した次世代精密家畜個体管理システム」 平成27年度 第1回現地検討会, 現地検討会責任者.
2015.10.02~2015.10.03, 日本機械学会 第26回バイオフロンティア講演会, 実行委員.
2015.12.09~2015.12.11, BIO4APPS2015, Conference Secritariat.
2015.02.06~2015.02.07, バイオメカニクス研究センター&エレクトロニクス実装学会九州支部, 実行委員.
学会誌・雑誌・著書の編集への参加状況
2015.12~2016.12, Sensors and Materials, 国際, 編集委員.
学術論文等の審査
年度 外国語雑誌査読論文数 日本語雑誌査読論文数 国際会議録査読論文数 国内会議録査読論文数 合計
2017年度  
2016年度
2014年度      
研究資金
競争的資金(受託研究を含む)の採択状況
2017年度~2018年度, 2017年度旭硝子財団研究助成金, 代表, 子牛の気管支炎・肺炎の早期発見を目的とした、呼吸数・心拍数計測システムのための高感度な受光部構造の低消費電力脈波センサの開発.

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