• Proceedings of the Korean Society of Computer Information Conference
• /
• 2015.07a
• /
• pp.204-206
• /
• 2015

본 논문에서는 원자력발전소와 같은 극한환경에서 사용할 수 있는 로봇 원격제어를 위한 데이터 송수신용 통신 모듈 구현의 제약 조건을 기술하고 이를 해결할 수 있는 방안을 제시한다. 원격제어는 오퍼레이터가 원격지 로봇의 다양한 환경 정보를 인식하면서 로봇 제어 명령을 전송하는 특성을 갖는다. 오퍼레이터와 원격지 로봇 사이에 지속적인 데이터 통신에 의해 제어를 수행하므로, 통신 속도와 통신 프로토콜에 따른 현재의 통신 상태 보장 방안도 필요하다. 네트워크 기반 통신에서는 물리적 환경에 의한 영향을 포함하여 TCP/IP 프로토콜의 경우 핸드쉐이크와 혼잡회피 알고리즘 등에 의한 논리적 통신 속도의 지터가 발생하므로, 로봇 원격제어 시 이 문제를 충분히 검토해야한다. 로봇 원격제어를 위해서는 TCP/IP는 물론 UDP와 같은 통신 프로토콜과 시리얼 통신 기반의 다양한 프로토콜을 적용할 수 있는데, 송수신 데이터의 종류에 따라 적절한 프로토콜을 적용해야하며 통신 라인의 연결 상태도 확인할 수 있어야 한다.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2012.07a
• /
• pp.123-126
• /
• 2012

현재 정보통신의 비약적인 발전은 의료서비스 전달체계에서도 큰 변화와 진전을 야기하고 있으며 세계적으로 점차 확대되어가고 있는 추세이다. 이는 의료정보화라는 이름으로 환자에게는 질병의 진단, 치료에 있어서 보다 신속, 세밀하고 정확히 판단할 수 있게 하여 수준 높은 보건의료서비스를 제공하는 한편 의료기관 및 관련기관은 업무의 효율성을 높여가고 있다. 그 중 원격의료는 의료기관의 방문 없이 대기시간의 단축, 일률적인 고도의 의료수준을 기대할 수 있는 등의 장점이 있는 제도이다. 그러나 현행 우리 의료법에서는 이를 규정하고는 있으나 그 내부적 관계에 따르는 세부적인 법률관계의 부재와 현장에서 이루어지는 의료행위가 아닌 정보통신망을 이용한 비대면접촉에 의한 특수한 형태라는 측면에서 제도적, 시설적, 환경적 제약이 있음을 부인할 수 없다. 따라서 본 논문에서는 원격의료의 법적 문제점 및 개선점을 고찰해보고 이를 통한 원격의료를 활성화할 수 있는 활로를 모색하고자 한다.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2000.04a
• /
• pp.519-522
• /
• 2000

인터넷 사용 확산에 따라 원격강의 시스템 또한 웹 서비스를 지향하는 추세이다. 웹 기반 원격강의 시스템의 형태로는 서버와 클라이언트의 브라우저를 동기화시키는 실시간 원격강의 및 단순히 강의자료를 웹서버에 올려두고 사용자가 접속하여 이용하도록 하는 비실시간 원격강의 등이 있다. 이러한 원격강의 시스템들은 결국 사용자의 pc에 이미 설치되어 있는 웹브라우저를 이용하는 것으로서 전용시스템 설치에 대한 부담을 없애주고 있다. 그러나 이러한 형태의 원격강의 시스템의 경우 강의 교재가 HTML 문서이어야 하는 번거로움이 발생하게 된다. 본 논문에서는 이미 PC용으로 널리 사용되는 윈도우즈용 프레젠테이션 도구의 문서를 강의 교재로 사용할 수 있게 하는 실시간 원격강의 시스템을 설계한다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2022.11a
• /
• pp.255-256
• /
• 2022

자율운항선박 육상원격제어사의 육상원격제어능력은 자율운항선박의 안전 운항 달성에 중요한 요소 중 하나이다. 특히 화재, 침수와 같은 비상상황은 긴밀한 대처를 필요로 하며, 선박에 자율화된 대응 시스템이 있다 하더라도 육상원격제어사의 비상상황 대응능력은 중요도가 높은 원격제어능력이라 할 수 있다. 하지만 육상원격제어사의 능력에 대한 연구는 대부분 선박조종능력에 편향된 경향을 보이며 선박조종 이외의 비상상황대처에 대한 연구는 부족하다. 이에 본 연구는 자율운항선박의 비상상황에 대한 육상원격제어사의 대처능력을 평가하기 위한 방법으로써 행동기반 비상대응능력 평가 모델을 개념화하여 제시하였다.

• Journal of the Korean Geographical Society
• /
• v.50 no.3
• /
• pp.325-338
• /
• 2015

Telemedicine, which gives or receives medical information via ICT (information and communication technology), is regarded as innovation in a medical field and its application is various according to offline conditions. For example, the utilization of telemedicine in Korea is unfair because of the administrative discretion, which is the basic unit of telemedicine for its practical operation, in spite of the same diagnostic area. With this mind, this study investigates the cause of regional differences of telemedicine through a case of Kangwon province. Furthermore, the crucial matter is that regional differences of telemedicine are associated with digital divide; therefore, this research considers digital divide triggered by telemedicine. The core results are as follows. First, there are little measures such as increase of the staff, economic compensation for public officials, education of telemedicine facilities; accordingly, only regions, where can accept these insufficient conditions, manage the telemedicine system. Second, the interesting of a mayor or a governor and a head of a health center as a highest decision maker has something to do with different utilization of telemedicine. Third, public health doctors play a role as practical operators in telemedicine, but their stance is skeptic about telemedicine somewhat because of the relationship with the medical association opposing the implementation of telemedicine, unimproved regional health care condition, etc. Forth, it seems that the digital divide caused by the regional differences of the present telemedicine utilization does not led to tangible results and is not turned to another disparity so far, the proper measures are required considering that various health care services based on telemedicine will be extended.

• The Korean Journal of Air & Space Law and Policy
• /
• v.35 no.1
• /
• pp.203-319
• /
• 2020

The regulation of satellite remote sensing is generally included with the scope of statutes governing outer space activities. But not all states opted for dedicated satellite remote sensing regulation. The decision whether to do so depends in part on the specific capabilities of national satellite remote sensing programs. Five states that have dedicated statutes governing operations with remote sensing data are the United States, with its developed Landsat regime (the Land Remote Sensing Policy Act of 1992, LRSPA), Canada, with its Remote Sensing Systems Act, Germany, with its Satellite Data Securities Protection Act (SatDSiG), France, with its Law on Space Operations (LOS), Japan, with its Act on Ensuring Appropriate Handling of Satellite Remote Sensing Data. The major purpose of this article is to shed light on some legal issues surrounding remote sensing activities by comparative review. The paper analyzes international conventions or soft law and national law and policies relating to satellite remote sensing. It also offers some implications and suggestions for regulations of satellite remote sensing operations and satellite data.

• Journal of Internet Computing and Services
• /
• v.3 no.3
• /
• pp.11-17
• /
• 2002

The web-based distance education has some problems in managing students despite the merit of getting over the problem of time and space compared with the classroom education or residential course. These problems make the web-based distance learners difficult in achieving the purpose and the standard of goal. And they drive the manager in charge of the web-based distance education into worries. The manager of the distance education should keep on monitoring students' participation and response, and then give the appropriate feedback to the students. But, the existing distance education system neglects to support efficient management function, for it puts emphasis on the activity of teaching and learning. Therefore, the purposes of this study are to extract the factors that are necessary to manage the distance education for training teachers, to realize the effective management system which can offer a proper feedback in the distance education for training teachers through the application of those factors to the training program, to make it possible to change the management system flexibly according to the curriculum and the computing setting.

• Journal of the Korean Society for Aeronautical & Space Sciences
• /
• v.33 no.7
• /
• pp.98-105
• /
• 2005

In this paper, the decryption function of CCSDS telecommand of CTU EQM for the security of communications satellite was verified. In order to intensify the security level of DES CFB decryption algorithm applied to CTU EM, 3DES CFB decryption algorithm using three keys is implemented in the CTU EQM. As the decryption keys increased due to the 3DES algorithm, the keys and IV are stored in PROM memory, and used for the telecommand decryption by taking the keys and IVs corresponding to the selected key and IV indexes from the memory. The operation of the 3DES CFB is validated through the timing simulation of 3DES CFB algorithm, and then the 3DES CFB core implemented on the A54SX32 FPGA. The test environment for the telecommand decryption verification of the CTU EQM was built up. Through sending and decrypting the encrypted command, monitoring the opcodes, and confirming LED on/off by executing the opcodes, the 3DES CFB telecommand decryption function of the CTU EQM is verified.

• Journal of Creative Information Culture
• /
• v.7 no.3
• /
• pp.167-176
• /
• 2021

In this paper, from the pervious studies investigating the current status of distance learning due to COVID-19, the needs of teachers for effective distance learning were analyzed. As a result, it was found that support related to distance learning contents was necessary. Specifically, it is necessary to establish a platform specialized for content production for distance learning, expand teacher training related to content production and operation, and improve the copyright system related to content production. In addition, since distance classes differ from those of back-to-school classes in system and characteristics, it is necessary to supplement the institutional aspects for distance classes. It is judged that it is necessary to support the evaluation method suitable for distance learning, the authority to operate the curriculum, and the learning management system. In addition, it was analyzed that it is necessary to expand the infrastructure for distance learning, and a structure and platform for self-directed improvement programs and self-directed distance learning are needed to prevent the learning gap problem from repeating due to distance learning.

• Therapeutic Science for Rehabilitation
• /
• v.7 no.4
• /
• pp.7-18
• /
• 2018

Objective: The purpose of this study was to investigate the effects of telerehabilitation on stroke patients through remotely operated intervention and monitoring. Methods: Literature from 2000 to April 2018 was collected through PubMed, Embase, Cochrane, and RISS. We used telerehabilitation, telemedicine, and stroke as the search terms in regard to foreign literature, and the terms telerehabilitation, stroke, and CVA in regard to Korean literature. A total of 406 foreign and 15 Korean published studies were found. As a result, a total of seven documents was selected for the analysis. Results: As a result of the analysis, all the interventions applied through telerehabilitation were provided remotely, and significant effects were reported between pre-post assessments. In addition, the significant effects of telerehabilitation were reported through analyzing pre-post(n=7) and between groups(n=4) assessments. The monitoring used could be categorized according to purpose, that is, for checking (n=3) and as an intervention (n=4). Conclusions: This study confirmed, within limits, that the application of telerehabilitation could be a potential alternative for stroke patients with limited rehabilitation services. In order to apply telerehabilitation in Korea, it is necessary to study the cost effectiveness, according to the current domestic situation, and confirm the most effective monitoring method based on the intervention.