Patent ID: 9696383
Date: 2017-07-04
CPC Classifications: G01R,H01M,H02J,H04L,H04Q,Y02E,Y02T

Claim:
1. A battery monitoring system comprising: a plurality of battery monitoring devices are connected to a battery formed by connecting a plurality of battery cell groups in series to each other, and monitor a state of the battery for the respective battery cell groups, each of the plurality of battery cell groups being formed by one or a plurality of battery cells connected in series; and a controller that performs wireless communication with the plurality of battery monitoring devices, wherein first identification information portions which are different from each other are set in the plurality of battery monitoring devices in advance, wherein second identification information corresponding to an order of potentials of the battery cell groups in the battery, to which the battery monitoring devices are connected, is assigned to each of the plurality of battery monitoring devices, wherein the controller sequentially sets communication ranges, transmission electric powers, or antenna gains for performing wireless communication with the plurality of respective battery monitoring devices in the order of potentials on the basis of information set in advance, wherein the plurality of battery monitoring devices sequentially transmit the first identification information portions to the controller in the order of potentials in accordance with the communication ranges, the transmission electric powers, or the antenna gains, wherein the controller determines and stores a correspondence relationship between the first identification information and the second identification information on the basis of the first identification information portions which are sequentially transmitted from the plurality of battery monitoring devices in the order of potentials, wherein the controller further stores distances and directions from the controller to a respective one of the battery monitoring devices in correspondence with the second identification information, and wherein the controller sequentially sets antenna gains for performing wireless communication with the plurality of respective battery monitoring devices in the order of potentials on the basis of the distances and directions.