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成果報告書詳細
管理番号20180000000163
タイトル*平成29年度中間年報 IoT推進のための横断技術開発プロジェクト Field Intelligence搭載型大面積分散IoTプラットフォームの研究開発
公開日2018/6/2
報告書年度2017 - 2017
委託先名国立大学法人大阪大学 国立大学法人東京大学 東京電力ホールディングス株式会社 東電設計株式会社 昭和電工株式会社 ダイキン工業株式会社 双葉電子工業株式会社 東洋インキSCホールディングス株式会社
プロジェクト番号P16007
部署名IoT推進部
和文要約
英文要約Title: Project to develop cross-sectoral technologies for IoT promotion
/Research and development of “Field Intelligence-Embedded Large-area, Distributed IoT Platform” (FY2017-FY2018)FY2017 Annual Report

 We have developed the fundamental technology of “Field Intelligence-Embedded Large-area, Distributed IoT Platform” for the realization of next-generation health-monitoring of civil infrastructures. Here we have described the main research achievements in FY2017, as follows.
No.1 System integration, embedded algorithm, research and development of Field Intelligence
We have designed a board with a function to charge an edge node using small current (less than 100uA) using a carbon wiring. We also fabricated vibration sensors composed of a piezoelectric film which enable to sense vibration over a wide band from 1 Hz to 8000 Hz.
No.2 Research and development of long life power supply system using carbon wiring sheet
We have developed a battery management board for estimating SoH of the battery using a representative IC. Furthermore, by parallelizing a plurality of development boards, it was possible to make it a platform for experiments.
No.3 Design and performance evaluation of Field-Intelligence IoT Platform
We have evaluated the performance and optimized the design of sensor systems in the laboratory tests by simulated.
No.4 AI algorithm development for diagnosis of infrastructure degradation and structural data
We conducted indoor tests of strain sensors in accuracy, temperature, fatigue, stretching speed dependencies. We also compared the strain sensors and conventional strain sensors.
No.5 Development of high-durable strain sensor
We investigated and improved performances of our resistive-type strain sensor using comparative tests with conventional gauges. In consequence, a correlation factor between strain and electrical resistance was 0.98 under dozens of cyclic strain, which was improved in a strain range of < 10%.
No.6 Research and development of piezoelectric vibration sensors for structural healthcare
We fabricated a piezoelectric vibration sensor and evaluated functionality. As a result, we confirmed its superior characteristics such as a signal flatness depending on vibration frequency and a signal linearity depending on acceleration force.
No.7 Development of sheet type wiring technologies using printable low resistance carbon ink and their application to sensor electrodes for the half-cell potential measurement system.
Long-term durability evaluation for carbon wiring sheet and half-cell potential electrodes has been started. As a result of the durability test, it was confirmed that the resistance of the carbon wiring sheet was greatly improved. In the development of the half-cell potential measurement system, it was confirmed that the drop of voltage potential due to the corrosion of steel bars.
No.8 Peripheral circuit design for edge node module
We have started a trial production of the edge node module based on specifications of the sensors.
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