Seoul
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KAIST introduced environmentally friendly public transportation to Seoul Grand Park.
KAIST introduced environmentally friendly public transportation to Seoul Grand Park.
First step toward the commercialization of Online Electric Vehicle (OLEV)
An online electric vehicle (OLEV) developed by KAIST replaced a trackless combustion-engine train running inside Seoul Grand Park in Gwacheon City, South Korea. On March 9, 2010, Seoul City and KAIST celebrated the completion of OLEV that picks up electricity from power cables buried underground through a non-contact magnetic charging method, called electromagnetic induction. Electromagnetic induction is the process of inducing electric current in a coil with the help of a magnet.
The pickup unit installed underneath OLEV collects electricity from a roadway and distributes the power either to operate the vehicle or for battery storage. Whether running or stopped, OLEV constantly receives electric power through the underground cables. As a result, OLEV mitigates the burden of equipping electric automobiles with heavy, bulky batteries—OLEV’s battery size is one-fifth that of the batteries installed in electric vehicles currently on the market.
There is no need to establish massive charging stations or to set aside much time for recharging. If the underground power lines installed on road curbs, bus stops, parking lots, and intersections, the power system could support a substantial portion of public transportation: For example, KAIST estimates that by establishing 20% of the road infrastructure for a bus route in Seoul City, the city could offer its citizens the online electric buses.
The non-contact charging of vehicles while running, idling, or parking is an important and practical technology necessary for the development of commercialized electric vehicles. This technology solves many of the issues related to the current batteries of electric vehicles, including size, expense, and repair/maintenance. In addition, non-contact charging is safer because it prevents potential electrical hazards, such as electric shock, that result from direct contact with power sources. Furthermore, it is more convenient to drive vehicles without overhead wires directly connected to power lines, as is necessary for streetcars and trams.
The recharging strips are divided into several meters of segments in length, and vehicles receive the power each time they pass over one. In other words, a sensor is affixed within each segment. When a car with the pickup equipment drives over the segment, the sensor is turned on for the car to receive electricity. This means that when a car without the pickup equipment passes over the segment, it will not collect any electricity.
The power supply via on/off switch (sensors) relieves safety concerns about electromagnetic field (EMF). Pedestrians or cars without the pickup unit will not be exposed to EMF because the sensor embedded in the segments will not work, thus no electricity generated. In addition, even under the circumstance of EMF yield, the test results for OLEV are well below the 1998 the International Commission on Non-Ionizing Radiation Protection (ICNIRP) guideline, 62.5mG at 20khz. OLEV’s EMF test results range from 20mG (inside OLEV while running) to 50mG (around OLEV while parking).
When talking about a wireless energy transfer such as electromagnetic induction, the most critical issue is how to reserve an air gap of 12cm (in accordance with Korean law) between the surface of roads and the bottom of vehicles while having 60% power transmission efficiency or above. There was a similar research done in the US at University of Berkley—their research was considered unsuccessful because they obtained an air gap of 5-7cm with 60% maximum level of efficiency. Besides, their electromagnetic field (EMF) was quite high (2000A), and they were unable to bring down the high cost of installing power supply system. By contrast, for the first time in the world, KAIST has succeeded to obtain 12cm (and up to 17cm) of air gap with more than 70% efficiency level of power transmission. The EMF is also well below the international standard of 62.5mG. In a nutshell, KAIST has achieved a core technology in terms of capacity, efficiency, and EMF to develop electric vehicles for commercial use.
The city government of Seoul and KAIST signed a Memorandum of Understating (MOU) on the development of an online electric vehicle in August 2009. Against the backdrop of the public’s increased awareness of environmental pollution and the depletion of fossil fuels, the two organizations agreed to introduce eco-friendly vehicles to the city’s public transportation, beginning with the introduction of a trial version of OLEV to places like an amusement park, bus terminal, airport, shopping mall, and the like.
KAIST’s OLEV research team is made up of experts from a variety of fields, including electrical and electronics engineering, computer sciences, civil engineering, information technology, and mechanical engineering. OLEV’s success at Seoul Grand Park is a result of KAIST’s innovative initiatives on convergence research, and KAIST has submitted more than 120 applications for patents right in connection with the development of OLEV.
Online Electric Vehicle at Seoul Grand Park
In terms of power transmission efficiency, KAIST’s research team achieved a maximum pick-up capacity of 62kw/h, 74% with an air gap height of 13cm from a road to the bottom of a vehicle. Composed of one engine and three passenger cars, OLEV travels along a total length of 2.2km beltway. There are four sections of power supply infrastructure established on the route (Sections 1, 2, and 3: 122.5 meters long each, and Section 4: 5 meters long). The power supply cables were laid underground for a total of 372.5 meters, 16% of the total distance of the 2,200 meter route.
2010.03.12 View 12509 -
KAIST to Host ITTP Conference in Tunisia
KAIST"s Global IT Technology Program (ITTP) will host an international conference at Hammamet Hotel in Tunisia in cooperation with its counterpart at Seoul National University (SNU) on Nov. 23, university authorities said on Wednesday (Nov. 18).
The event is a pre-conference for the ICT4All Forum on Nov. 24-25 which the Tunisian government is organizing with the ADB, World Bank, Arab Society for Intellectual Property and the UTICA to deal with developing information and communication technologies.
KAIST"s ITTP which started in 2006 is designed to build global network of IT leaders around the world. The program supported by the Korean Ministry of Knowledge and Economy offers a customized master"s and doctoral degree program for foreign government officials, employees of public institutions and senior researchers at national research centers working in the IT fields. Scholarships are provided for all trainees, for up to 2 years for master"s students and up to 3 years for doctoral students.
The program focuses on transferring advanced technologies and business strategies of Korea to the global IT leaders of the next generation.
During the conference, seven government officials from as many countries currently under the KAIST or SNU programs will present international cooperation cases based on their own experiences in the IT fields. KAIST ITTP organizers will also provide an educational session on the mobile government for Tunisian experts and conference participants in the information and communications fields.
2009.11.20 View 12746
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Int'l Telematic Music Concert for Peace to Take Place on Nov. 20
Renowned musicians in five international locations perform new contemporary music works for peace through a real-time performance on the internet. Local audiences in Seoul, Banff, New York, San Diego and Belfast will also have a chance to hear a program.
In Seoul, the "International Telematic Music Concert for Peace" will be held at the LeeHaeRang Art Theater, Dongguk University, in Seoul on Nov. 20 at 9:30 a.m., under the presentation of KAIST"s Graduate School of Culture Technology and MARTE Lab, Dongguk University. Telematic music is real-time performance via the internet by musicians in different geographic locations.
The program of the concert includes "Hope"s Dream" by Mark Dresser and Sarah Weaver; "Disparate Bodies" by Pedro Rebelo, "Rock, Paper, Scissors" by Chris Chafe. The Korean act to be performed is "Green-colored Harmony" by Jun Kim.
In addition to the two Korean universities, the World Association of Former United Nations Internes and Fellows (WAFUNIF), University of California San Diego, the Banff Center of Canada and Queen"s University in Belfast are participating in the project.
The performance will take place on high-bandwidth internet with JackTrip audio software developed by Chris Chafe and Access Grid video software developed at Argonne National Laboratory.
"Connecting the five different cities together through super-speed Internet network and transmitting sound and images in real time is challenging technically. But, we also expect that more exciting results will be created in the course of transforming the sound into visual images," said Woon-Seung Yeo, a professor of the Graduate School of Culture Technology, who was responsible for visuals in the project.
2009.11.19 View 12366 -
Transparent Antenna for Automobile Developed
A research team led by Prof. Jae-Woo Park of the School of Electrical Engineering & Computer Science, KAIST, developed a transparent antenna for the next-generation automobiles, university authorities said on Monday (Aug. 17).
The development was made possible through joint researches with the Hyundai-Kia Automotive Group; Winncom, a car antenna manufacturer; and a group of researchers led by Han-Ki Kim of the Department of Display Materials Engineering at Kyung Hee University in Seoul.
The transparent antennas were developed in two kinds -- one for the HSDPA (High-Speed Downlink Packet Access), a new protocol for mobile telephone data transmission, and the other for transmitting and receiving radio wave for emergency call.
Using the transparent electrically conductive film formation technology, the transparent antennas are to be mounted on the windshield of a vehicle.
"The development of transparent antenna represents a step forward for the advancement of the next-generation automotive electronic technology," said Seong-woo Kim, a senior researcher at the Hyundai-Kia Group.
2009.08.18 View 12347 -
Prof. Chung Appointed Chief Design Officer of Seoul City
Prof. Kyung-Won Chung of the Department of Industrial Design, KAIST, has been appointed as the new chief design officer of the Seoul Metropolitan City, university sources said on Tuesday (May 26).
Chung succeeded Prof, Young-Gull Kwon of Seoul National University who served as the inaugural head of the design division since 2007. The deputy-mayor level position has a two-year term.
With a vision to turn Seoul into a "global design hub," the Seoul city administration established the design division and initiated a slew of initiatives including design competitions aimed at improving the city"s looks.
Prof. Chung graduated from Seoul National University and its graduate school. Then, he earned a master"s degree from Syracuse University, New York, and a doctorate from Manchester Metropolitan University in Britain. Since February 2009, he has served as an executive of the newly-created Seoul Design Foundation. He also served as president of the Korea Institute of Design Promotion (KIDP) from February 2000 through May 2003.
2009.05.28 View 9415 -
Former Information and Communication Minister Soonhoon Bae appointed to Vice president of KAIST
“KAIST graduate school of management will be a world-class graduate school of management”
Professor Soonhoon Bae was appointed to the vice president of KAIST in Seoul campus on August 16.
Vice president Bae started his carrier with Daewoo Inc. as the head of the technical H.Q. in Daewoo Heavy Industry in 1976, and took office as the CEO of Daewoo Electronics (1991-95) and Daewoo Inc. (1995-97).
He was also the Minister of Information and Communication in 1998 and the chairman of the Presidential Committee on Northeast Asian Business Hub during 2004-05.
He became an issue by ‘TANKism’, a motto of making strong and core function-convergent electronic goods, when he was the CEO of Daewoo Electronics in 1992. From 1999, he’s made lectures for KAIST graduate school of techno management and Classroom No. 101 in Supex Management Hall where he has made lectures is called ‘tank classroom’.
Vice president Bae expressed his intention of the globalization and level-up of the school by saying, “I will focus on basic researches of management and thus raise the level of KAIST graduate school up to be qualified for Nobel Prize. I’ve taken many high-rank positions such as the CEO of major companies and the minister, however, position doesn’t matter at all. I am fully satisfied with the fact that the organizations that I belonged to have been reborn as world-class communities, and I am planning to lead KAIST graduate school of management in such a direction.”
2006.09.05 View 13481