公开(公告)号：US10225723B1

公开(公告)日：2019-03-05

申请号：US15856296

申请日：2017-12-28

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kyo Hoon Son ,  Myung Nam Bae ,  Kang Bok Lee ,  Hye Sun Lee ,  Min Gi Jeong ,  Sang Gi Hong

IPC: H04W4/90 ,  H04W52/28 ,  H04W52/52 ,  H04W4/12 ,  H04W64/00

Abstract: A method and apparatus for controlling a transmission signal for a disaster scene communication system. The method includes determining a type of a transmission message transmitted to a mobile terminal device by a control terminal device of the disaster scene communication system, determining a criticality level of the transmission message corresponding to the type of the transmission message, determining an initial distance between the control terminal device and the mobile terminal device by checking initial location information of the mobile terminal device, setting an initial transmission power in consideration of the criticality level of the transmission message corresponding to the type of the transmission message and the initial distance between the mobile terminal device and the control terminal device, and controlling a current transmission power based on the initial transmission power.

公开(公告)号：US20240310848A1

公开(公告)日：2024-09-19

申请号：US18601829

申请日：2024-03-11

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ji Hun JEON ,  Kang Bok LEE ,  Sang Yeoun LEE ,  Soo Young JANG ,  Min Gi Jeong

IPC: G05D1/246 ,  G05D1/622 ,  G05D107/40 ,  G05D109/20 ,  G05D111/10 ,  G05D111/30 ,  G05D111/50

CPC classification number: G05D1/246 ,  G05D1/622 ,  G05D2107/40 ,  G05D2109/20 ,  G05D2111/14 ,  G05D2111/30 ,  G05D2111/52

Abstract: Provided is a method of operating an unmanned mobile vehicle for detecting an indoor environment. The method according to an embodiment of the present disclosure includes obtaining first motion information using a LiDAR sensor provided on the unmanned mobile vehicle, obtaining second motion information using an inertial sensor provided on the unmanned mobile vehicle, performing correction on the first motion information and the second motion information on the basis of error models corresponding to the LiDAR sensor and the inertial sensor, and determining final position information of the unmanned mobile vehicle on the basis of the correction.

公开(公告)号：US11113944B2

公开(公告)日：2021-09-07

申请号：US16687907

申请日：2019-11-19

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Min Gi Jeong ,  Jeong Kyun Kim ,  Myung Nam Bae ,  Kang Bok Lee ,  Sang Yeoun Lee

IPC: G08B21/04 ,  A61B5/11 ,  A61B5/00 ,  G06K9/00

Abstract: A walking analysis method includes measuring impacts due to floor landing occurring during walking; identifying an impact section before floor landing, a free fall section, and an impact peak section by floor landing in an impact graph over time; analyzing at least one impact-related parameter for the impact section before floor landing, the free fall section, and the impact peak section by floor landing; and determining a walking-related accident type according to a result of analyzing the at least one impact-related parameter. Accordingly, by classifying and detecting a variety of accidents that may actually occur, the main walking characteristics that are dangerous in the actual accident can be extracted.