Japan Geoscience Union Meeting 2015

Presentation information


Symbol S (Solid Earth Sciences) » S-TT Technology & Techniques

[S-TT53] Seismometry and monitoring system

Sun. May 24, 2015 6:15 PM - 7:30 PM Convention Hall (2F)

Convener:*Hiromitsu Nakamura(National Research Institute for Earth Science and Disaster Prevention)

6:15 PM - 7:30 PM

[STT53-P09] Use of fuel cell system as a power source for seismic observation

*Yasuyuki KANO1, Ryokei YOSHIMURA1, Hiroshi KATAO1, Kensaku MAEDA2, Masahiro YAMASHITA2 (1.Disaster Prevention Research Institute, Kyoto University, 2.TOYOBO CO., LTD.)

Keywords:fuel cell, seismic observation, crustal deformation observation, temporal observation, power supply

Observation of earthquake or crustal deformation often deployed at sites where commercial power supply is not available. For example, temporal observation after large earthquakes or observation area that is not covered by existing observation network. Even at the site with commercial power supply, backup of power supply is essential in preparation for power cut caused by disasters. In order to acquire continuous data before and after a large earthquake is
Battery or solar cell have been used for observations at the site where commercial power supply is not available. Batteries are usually heavy and unsuitable for transportation. Solar cells cannot produce power during cloudy or rainy weather and night. Although observation system with smaller power have been developed, a certain amount of power is still needed for particular sensors and telemetry.
Fuel cell systems that can be used for seismic and crustal deformation observation is recently developed. Fuel cell systems stably supply power for long time. We made seismic observation at the Yagi observatory (DP.YGI) using a fuel cell system as power supply to test feasibility of the fuel cell system. The system consists of a seismimoter, data logger (LS-7000XT, Hakusan Corporation), fuel cell (TOYOBO ProtonCube(R)), solar cell, power controller, and mobile router (MR03LN, NEC Platforms). The observation was began from December, 2014. The observation system satisfactorily operates in spite of poor power production of solar cell because of snow and bad weather. The fuel cell equipped with two fuel tank of 10L, which can continue the observation for a half year. Increase of number of the fuel tank extends the observation period without exchange of the tank. We have plan to make test observations using the fuel cell system at other sites sensors and with different sensors.