US 12,477,311 B2
Grouping method and system using bluetooth-based star network
Eunseung Lee, Gwangju (KR); and Hyunsoo Kim, Yongin-si (KR)
Assigned to DABIDA CORP., Gyeonggi-do (KR)
Appl. No. 17/923,211
Filed by DABIDA CORP., Anyang-si (KR)
PCT Filed May 18, 2021, PCT No. PCT/KR2021/006176
§ 371(c)(1), (2) Date Nov. 3, 2022,
PCT Pub. No. WO2021/235809, PCT Pub. Date Nov. 25, 2021.
Claims priority of application No. 10-2020-0060711 (KR), filed on May 21, 2020.
Prior Publication US 2023/0164522 A1, May 25, 2023
Int. Cl. H04W 4/08 (2009.01)
CPC H04W 4/08 (2013.01) 10 Claims
OG exemplary drawing
 
1. A grouping system using a Bluetooth-based star network comprising:
a primary instructor terminal that is paired with a predetermined number of member terminals based on Bluetooth to form a primary group constituting a star network;
a secondary instructor terminal which is paired with a predetermined number of other member terminals based on Bluetooth, which are not paired with the primary instructor terminal, to form a secondary group constituting a subordinate star network of the primary group, the secondary instructor terminal being one of the member terminals in the primary group; and
a management terminal which is paired with the primary instructor terminal to visually display tags of the member terminals breaking away from or joined in the primary group and the secondary group,
wherein when all of the member terminals in the secondary group are paired with the secondary instructor terminal, the secondary instructor terminal sends a first report to the primary instructor terminal paired with the secondary instructor terminal in the primary group,
wherein when a connection to a member terminal in the secondary group is broken, the secondary instructor terminal sends a second report to the primary instructor terminal paired with the secondary instructor terminal in the primary group,
wherein the primary instructor terminal sends a first warning notification to a first potential breakaway terminal in the primary group, a distance between the first potential breakaway terminal and the primary instructor terminal being greater than a threshold value based on received signal strength indication (RSSI),
wherein the secondary instructor terminal sends a second warning notification to the primary instructor terminal and to a second potential breakaway terminal in the secondary group, a distance between the second potential breakaway terminal and the secondary instructor terminal being greater than the threshold value based on the RSSI.