| 摘要 |
PROBLEM TO BE SOLVED: To facilitate the maintenance inspection and prolong the use life of a battery by arranging a receiver, which receives radio singles from each transmitter, in a battery room or in its vicinity, and receiving individual pieces of information on unit cells with the receiver. SOLUTION: Voltge detecting circuits VD1 -VDn as sensors, which detect the voltage information, and radio transmitters TX1 -TXn , which transmit the radio signals modulated by the output of the voltage detecting circuits VD1 -VDn , are attached to unit cells B1 -Bn , and also a radio receiver RX which receives the radio signals from each radio transmitter TX1 -TXn is arranged in a battery room or in its vicinity. Then, the individual pieces of information on unit cells B1 -Bn are received with the radio receiver RX. Hereby, the maintenance and inspection can be facilitated, and the use life of the battery can be prolonged. |
