To provide a remote measuring system capable of continuous drive over a long period of time without especially being influenced by surrounding environment and weather, by significantly reducing a frequency of maintenance such as replacement of a secondary battery even if not being connected with a commercial power supply.
A remote measuring system uses an electrical power system comprising: at least a direct methanol fuel cell comprising a first air filter and a secondary battery; and a mechanism for charging the secondary battery by the direct methanol fuel cell. At least the direct methanol fuel cell comprises a structure stored in a housing comprising a second air filter which is disposed outside the direct methanol fuel cell and is selectable and replaceable according to an installing environment.
| WO/2007/074378 | FUEL CELL SYSTEM |
| JP2004214027 | MAINTENANCE SYSTEM |
KATSUMA YOSHIYUKI
MATSUMURA TAKAHIRO
MAEDA KENSAKU
KITAMURA KOTA
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