Electronics and Telecommunications Research Institute

Byung Doo Kim

Hyun Sook Cho

Byung Gil Lee

Youngsu Cho

Do Hyeung Kim

Joong Yong Choi

Wan Gyun Choi

Ju Young Kim

Jung Chan Na

Dong Yong Kwak

Myung In Ji

Myungin Ji

Seung Hee Oh

Sung Jo Yun

Kwan Tae Cho

Sungjo Yun

Dae Hee Seo

The present invention relates to a vessel traffic service system and a method for extracting accident data, and more particularly, to a technique that search and extracts possible event traffic data automatically from data of a concerned area without knowing exact time when a marine accident occurs. The vessel traffic service system includes: an input unit receiving conditional information for extracting accident occurrence data from a user; a storage unit storing at least one of an automatic identification system (AIS) signal, a radar signal, and a camera image signal; and a control unit extracting an event occurrence part from at least one of the AIS signal, the radar signal, and the camera image signal of a point and a time at which an accident occurs in accordance with the conditional information to generate an accident candidate list.

Vessel traffic service system and method for extracting accident data

The traffic control method according to the present invention includes obtaining radar information on a target from at least one radar; obtaining AIS information of the target from an AIS (automatic identification system) of the target; detecting GPS jamming; and fusing the radar information and the AIS information. The fusing selectively fuses the AIS information depending on whether the GPS jamming occurs in the position of the target as a result of the detection.

Method and system for managing traffic considering GPS jamming

An infrastructure information collecting device collects measurement information including location information regarding a plurality of wireless access devices disposed in an indoor space based on an indoor map, and a positioning system generates information regarding a wireless communication infrastructure of the corresponding indoor space based on the thusly collected measurement information. The positioning system then provides the generated wireless communication infrastructure information to a terminal of which location is desired to be measured, and then the terminal measures its location based on the wireless communication infrastructure information and signals received from nearby wireless access devices.

Device and method for collecting information related to infrastructure, and positioning method and system using the same

A terminal location measuring device includes a database for storing registration information of a plurality of access points (AP's) forming a first infrastructure system for wireless LAN-based indoor location determination. The terminal location measuring device sets a search range of a database by using location information of the terminal acquired through a second infrastructure system that is different from the first infrastructure system, an identifier of at least one of a plurality of AP's, and a signal measurement value. The terminal location measuring device extracts registration information of an AP having the same identifier as at least one AP within the search range of the database, and measures a location of the terminal by using registration information of the AP.

Device and method for measuring location of terminal

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Daejeon, South Korea

Byung Doo Kim