| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology capable of always monitoring the state of a solar cell by a module unit by using radio communication.SOLUTION: Each state detection device 14 includes: a DC/DC converter 20; radio slave unit 30; a voltage measurement sensor 22; and a current measurement sensor 24. The DC/DC converter 20 converts a part of an output power from a solar cell module 12, and supplies a power to the radio slave unit 30 or the like. The ID of a radio master unit is set as a connection destination in the memories of a part of the radio salve units 30, and the ID of the other radio slave units 30 is set as connection destinations in the memories of the residual radio slave units 30. Each radio slave unit 30 periodically sends measurement data output from each sensor to the self-connection destination, and when receiving measurement data in which the self-ID is designated from the other radio slave units 30, transfers this to the self-connection destination. Thus, measurement data sent by each radio slave unit 30 can finally reach the radio master unit. The radio master unit outputs the measurement data to a personal computer. |
