公开(公告)号：US20140228058A1

公开(公告)日：2014-08-14

申请号：US14089665

申请日：2013-11-25

Applicant: Electronics and Telecommunications Research Institute

Inventor： Myung In JI ,  Young Su CHO ,  Joo Young KIM ,  Yang Koo LEE ,  Sang Joon PARK

IPC: G01S5/00

CPC classification number: G01S5/0252

Abstract: According to the present invention, a system of estimating a position of a base station comprises a portable collecting device that considers a collection distribution for a plurality of base stations, arbitrarily sets positions of the plurality of base stations, and collects signal strengths transmitted from the plurality of arbitrarily set base stations and a server device that measures the signal strengths received from the portable collecting device, produces a signal attenuation pattern according to a distance between an arbitrarily set base station and the portable collecting device, and estimates a position of the base station according to an error between a signal strength estimated value at a specific point as estimated according to the signal attenuation pattern and an actually measured signal strength measured value at the specific point.

Abstract translation: 根据本发明，估计基站的位置的系统包括考虑多个基站的收集分配的便携式收集装置，任意设置多个基站的位置，并且收集从基站发送的信号强度 多个任意设置的基站和测量从便携式收集装置接收的信号强度的服务器装置根据任意设置的基站和便携式收集装置之间的距离产生信号衰减模式，并估计基站的位置 根据根据信号衰减模式估计的特定点处的信号强度估计值与特定点处的实际测量信号强度测量值之间的误差的位置。

公开(公告)号：US20240219508A1

公开(公告)日：2024-07-04

申请号：US18121151

申请日：2023-03-14

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jaeuk BAEK ,  Sang Joon PARK

IPC: G01S5/02 ,  G06N3/045 ,  G06N3/08

CPC classification number: G01S5/02524 ,  G06N3/045 ,  G06N3/08

Abstract: A preprocessing method of a data preprocessing device is provided. The preprocessing method includes dividing a region, where the target object is located, into coarse grids and generating first sample data including a similarity value between a virtual sensor measurement value and a real sensor measurement value measured in each of the coarse grids, dividing each coarse grid into fine grids and generating second sample data including a similarity value between a virtual sensor measurement value and a real sensor measurement value measured in each of the fine grids, dividing each fine grid into finer grids and generating third sample data including a similarity value between a virtual sensor measurement value and a real sensor measurement value measured in each of the finer grids, and inputting the training data, including the first to third sample data, to the deep learning model.

公开(公告)号：US20220103984A1

公开(公告)日：2022-03-31

申请号：US17486018

申请日：2021-09-27

Applicant: Electronics and Telecommunications Research Institute

Inventor： Blagovest Iordanov VLADIMIROV ,  Sang Joon PARK ,  Jin Hee SON ,  So Yeon LEE ,  Chang Eun LEE ,  Sung Woo JUN ,  Eun Young CHO

IPC: H04W4/33 ,  H04W4/02 ,  H04W24/08 ,  H04B17/318 ,  G06N7/00

Abstract: Provided are a system and method for active data collection mode control for reducing crowd-sourcing signal data collection required for fingerprint database (FPDB) maintenance. The system for active data collection mode control for reducing crowd-sourcing signal data collection required for FPDB maintenance includes a mobile device configured to support a survey mode, a localization mode, and a crowd-sourcing mode and a server configured to receive data from the mobile device, generate and update an FPDB, and control a data collection mode.