公开(公告)号：US11304173B2

公开(公告)日：2022-04-12

申请号：US17006478

申请日：2020-08-28

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Doik Kim ,  Jung Hee Kim

IPC: H04W24/00 ,  H04W64/00 ,  G01S5/02

Abstract: Provided is a node location tracking method, including an initial localization step of estimating initial locations of a robot and neighboring nodes using inter-node measurement and a Sum of Gaussian (SoG) filter, wherein the initial localization step includes an iterative multilateration step of initializing the locations of the nodes; and a SoG filter generation step of generating the SoG filter.

公开(公告)号：US11153020B2

公开(公告)日：2021-10-19

申请号：US16862741

申请日：2020-04-30

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jung Hee Kim ,  Doik Kim

IPC: H04B17/318 ,  H04B17/336 ,  H04W24/10 ,  H04W4/029 ,  H04W4/02

Abstract: The present disclosure provides an RSS (Received Signal Strength) signal correction method for performing location measurement by utilizing information among a plurality of nodes, and the RSS signal correction method estimates a variable of an RSS signal model based on at least one of location information of a fixed node, location information of an unknown node and measurement noise information of the unknown node.

公开(公告)号：US11360105B2

公开(公告)日：2022-06-14

申请号：US16395069

申请日：2019-04-25

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Chae Lin Lee ,  Jung Hee Kim ,  Man Ho Choi

IPC: G01N33/48 ,  G01N33/74

Abstract: The present invention relates to a method for evaluating metabolic activity based on the concentrations of cortisol and its precursors and metabolites thereof in saliva collected by a swab for the measurement of adrenal steroids relating to biochemical stress evaluation and more particularly, to a method of comparing metabolic activity of physiologically different adrenal steroids by analyzing adrenal steroids including cortisol and cortisone extracted from a trace amount of saliva by mass spectrometry and evaluating the metabolic ratio between the two compounds as well as the absolute amount of each compound. Accordingly, the present invention can be utilized as an index for evaluating response to biochemical stress and related diseases by measuring the amounts of adrenal steroids including cortisol and cortisone in a trace amount of saliva collected with a swab.