Method of allocating unique identifier and battery management system using the same
View Patent ↗Disclosed are a method of allocating unique identifiers to slave battery managers for managing battery modules by a master battery manager and a battery management system using the same, and the method includes making a request for allocation information to the slave battery managers; receiving the allocation information from the slave battery managers; and allocating the unique identifiers to the slave battery managers based on the allocation information, wherein the allocation information contains an MAC address of a device performing a calibration between the slave battery manager and the battery module and time information on a time when the calibration is performed. According to the present invention, it is possible to efficiently control and manage a plurality of battery modules by allocating unique identifiers by using allocation information set to each of the plurality of battery modules.
1. A method of allocating unique identifiers to slave battery managers for managing battery modules by a master battery manager, the method comprising:
making a request for allocation information to the slave battery managers;
receiving the allocation information from the slave battery managers; and
allocating the unique identifiers to the slave battery managers based on the allocation information,
wherein the allocation information contains an MAC address of a device performing a calibration between the slave battery manager and the battery module and time information on a time when the calibration is performed.
2. The method according to claim 1 , wherein the allocation information is divided into a plurality of data blocks, and the data blocks are sequentially received.
3. The method according to claim 1 , wherein the master battery manager is connected to the plurality of slave battery managers.
4. The method according to claim 3 , wherein the allocating of the unique identifiers comprises:
determining the number of plurality of slave battery managers connected to the master battery manager based on the allocation information; and
allocating the unique identifiers which do not overlap each other to the plurality of slave battery managers, respectively.
5. The method according to claim 1 , wherein a bit number of the unique identifier is smaller than a bit number of the allocation information.
6. The method according to claim 2 , wherein a bit number of each of the plurality of data blocks is equal to or smaller than 29 bits.
7. The method according to claim 1 , wherein the master battery manager and the slave battery manager perform CAN communication.
8. The method according to claim 1 , wherein the slave battery manager and the device performing the calibration perform RS 232 communication.
9. A battery management system comprising:
slave battery managers configured to manage battery modules and having allocation information set thereto; and
a master battery manager configured to allocate unique identifiers for the slave battery managers based on the allocation information and manage the battery modules by being connected to the slave battery managers to control the slave battery managers,
wherein the allocation information contains an MAC address of a device performing a calibration between the slave battery manager and the battery module and time information on a time when the calibration is performed.
10. The battery management system according to claim 9 , wherein the master battery manager comprises:
a master communication unit configured to perform communication with the slave battery managers, make a request for the allocation information to the slave battery managers, and receive the allocation information; and
an ID allocator configured to allocate the unique identifiers for the slave battery managers based on the allocation information.
11. The battery management system according to claim 9 , wherein the slave battery manager comprises:
a slave communication unit configured to perform communication with the master battery manager and transmit the allocation information by a request of the master battery manager; and
a memory unit configured to store the identifiers allocated by the master battery manager.
12. The battery management system according to claim 11 , wherein the slave communication unit divides the allocation information into a plurality of data blocks and sequentially transmits the data blocks.
13. The battery management system according to claim 10 , wherein the master battery manager is connected to the plurality of slave battery managers.
14. The battery management system according to claim 13 , wherein the ID allocator determines the number of plurality of slave battery managers connected to the master battery manager and allocates the unique identifiers which do not overlap each other to the plurality of slave battery managers, respectively.
15. The battery management system according to claim 10 , wherein a bit number of the unique identifier is smaller than a bit number of the allocation information.
16. The battery management system according to claim 12 , wherein a bit number of each of the plurality of data blocks is equal to or smaller than 29 bits.
17. The battery management system according to claim 9 , wherein the master battery manager and the slave battery manager perform CAN communication.
18. The battery management system according to claim 9 , wherein the slave battery manager and the device performing the calibration perform RS 232 communication.