| CPC G01R 31/36 (2013.01) [H01M 10/425 (2013.01); H01M 10/48 (2013.01); H04Q 9/00 (2013.01); H01M 2010/4271 (2013.01); H01M 2010/4278 (2013.01); H04B 17/318 (2015.01)] | 14 Claims |
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1. A battery management device, comprising:
an upper-level controller configured to:
transmit a command signal to a plurality of lower-level controllers;
receive response signals to the command signal from the plurality of lower-level controllers, respectively; and
select an intermediate lower-level controller among the plurality of lower-level controllers based on a predetermined criterion; and
the plurality of lower-level controllers, each configured to:
perform an operation according to the command signal received from the upper-level controller; and
transmit the respective response signal to the command signal to the upper-level controller,
wherein the intermediate lower-level controller is configured to transmit, with a maximum power, a signal corresponding to the command signal transmitted by the upper-level controller to the remaining lower-level controllers, among the plurality of lower-level controllers, if a strength of the command signal received by the intermediate lower-level controller from the upper-level controller is less than a preset first reference value.
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7. The device of claim 1, wherein the upper-level controller is further configured to select the intermediate lower-level controller based on strengths of the response signals received respectively from the lower-level controllers.
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