| abstract |
Each of a plurality of monitoring units ( 10 ) that monitor the states of batteries allocates, as identifying information for itself, identifying information corresponding to an input signal inputted from a preceding control unit ( 3 ) or monitoring unit ( 10 ); outputs, to a subsequent monitoring unit ( 10 ), a signal that differs from the input signal corresponding to the identifying information the monitoring unit ( 10 ) in question has allocated to itself; and, if and when identifying information corresponding to an input signal differs from the identifying information the monitoring unit ( 10 ) in question had allocated to itself, reallocates identifying information corresponding to said input signal as identifying information for itself. |