Power battery monitoring system and method

A power battery monitoring method, applied to a power battery monitoring system, the power battery monitoring system comprising a battery assembly, N monitoring assemblies and an upper monitoring platform;

• wherein the power battery monitoring method comprises:
• acquiring, by the upper monitoring platform, parameter information of monitoring assemblies;
• wherein the battery assembly comprises a plurality of battery cells connected in series or in parallel;
• the N monitoring assemblies are connected in series with each other, and a first monitoring assembly of the N monitoring assemblies is connected with the upper monitoring platform, wherein a number of sampling channels of each monitoring module is M;
• M battery cells are connected with a same monitoring assembly through the M sampling channels;
• a sequence of the M sampling channels is consistent with a sequence of the M battery cells;
• M and N are integers greater than or equal to 1;
• and the N monitoring assemblies are configured to acquire sampling data of the M battery cells;
• establishing, by the upper monitoring platform, a mapping relationship of the parameter information, communication addresses and weights of the N monitoring assemblies through a bootstrap algorithm;
• and
• acquiring, by the N monitoring assemblies, the sampling data of the M battery cells, and determining serial numbers of corresponding battery cells in the N monitoring assemblies according to the sampling data;
• and when a battery cell is abnormal, determining, by the upper monitoring platform, a location of the abnormal battery cell according to a serial number of a corresponding battery cell in the monitoring assembly and the mapping relationship, and monitoring the battery cell.

A power battery monitoring device, comprising

• one or more processors;
• and
• a memory in communication connection with the one or more processors, wherein
• the memory stores instructions that are configured to be executed by the one or more processors, and the instructions, when executed by the one or more processors, cause the one or more processors to perform acts comprising:
• acquiring parameter information of monitoring assemblies;
• wherein the battery assembly comprises a plurality of battery cells connected in series or in parallel;
• N monitoring assemblies are connected in series with each other, and a first monitoring assembly of the monitoring assemblies is connected with the upper monitoring platform, wherein a number of sampling channels of each monitoring assembly is M;
• M battery cells are connected with the same monitoring assembly through a M sampling channels;
• a sequence of the M sampling channels is consistent with a sequence of the M battery cells;
• M and N are integers greater than or equal to 1;
• and the N monitoring assemblies are configured to acquire sampling data of M battery cells;
• establishing a mapping relationship of the parameter information, communication addresses and weights of the N monitoring assemblies through a bootstrap algorithm;
• and
• when a battery cell is abnormal, determining a location of the abnormal battery cell according to a serial number of corresponding battery cell in the monitoring assembly and the mapping relationship, and monitoring the battery cell.