公开(公告)号：US20190253169A1

公开(公告)日：2019-08-15

申请号：US16251637

申请日：2019-01-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Young-Mok HA ,  Moon-Sub SONG

IPC: H04J3/06 ,  H04W56/00 ,  B64C39/02

CPC classification number: H04J3/0667 ,  B64C39/024 ,  B64C2201/12 ,  H04J3/0676 ,  H04J3/0682 ,  H04W56/002 ,  H04W56/004

Abstract: Disclosed herein is an apparatus for supporting time synchronization between unmanned vehicles, which includes a time synchronization message generation unit for generating a first time synchronization message, including information about a reference time base used to synchronize time of one or more unmanned vehicles or one or more boards within each unmanned vehicle; a communication unit for sending the first time synchronization message to the unmanned vehicle, the boards, or an additional apparatus for supporting time synchronization, connected over a network, and receiving a second time synchronization message from the unmanned vehicles or the additional apparatus for supporting time synchronization; and a time synchronization unit for determining an optimal time base using the first and second synchronization messages and synchronizing an internal time base with the unmanned vehicles, the boards, or the additional apparatus for supporting time synchronization using the optimal time base.