公开(公告)号：US20180124388A1

公开(公告)日：2018-05-03

申请号：US15794900

申请日：2017-10-26

Applicant: KOREA AEROSPACE RESEARCH INSTITUTE

Inventor： Jin Hyung PARK ,  Hyun Su LIM ,  Dae Won CHUNG

IPC: H04N17/00 ,  G06T3/40

CPC classification number: H04N17/002 ,  B64G1/00 ,  G06T3/4007 ,  H04B7/185

Abstract: A system and a method for determining a satellite image loss and a computer-readable recording medium therefor are provided. The satellite image loss determination system includes a data receiving unit configured to receive packet data including satellite image data, time information, and a flag value, and angle data of a scan mirror that generates the satellite image data; a data comparing unit configured to compare the angle data received by the data receiving unit with angle data of the scan mirror previously determined in correspondence with the packet data; and an image loss determining unit configured to determine whether a loss has occurred in a satellite image generated from the satellite image data in consideration of a result of comparison of the data comparing unit.

公开(公告)号：US20230034716A1

公开(公告)日：2023-02-02

申请号：US17539861

申请日：2021-12-01

Applicant: KOREA AEROSPACE RESEARCH INSTITUTE

Inventor： Hyun Chul BAEK ,  Tae Geun SON ,  Dae Won CHUNG

IPC: H04L1/00 ,  H04L67/06

Abstract: Provided are a method and a system for transmitting multiple data, in which the method includes receiving a plurality of transmission files for transmission from a transmission device of the first network to a reception device of the second network, and temporarily storing the received files, generating flexible packets by dividing each of the plurality of transmission files by a flexible packet length determined according to size of the files, in which a transmission file in a size smaller than the flexible packet length among the plurality of transmission files is generated as one flexible packet without being divided, loading the flexible packets into a plurality of flexible frames based on a corresponding transmission file priority according to a maximum data transmission size, and transmitting the plurality of flexible frames to the second network.