• Proceedings of the IEEK Conference
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• 2003.11c
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• pp.353-356
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• 2003

As the wireless mobile telecommunication system has been developed with astonishment, its offering service has also widely been expanded including various data service. Currently, the wireless mobile telecommunication network presents voice service that covers for the most part of the whole service areas. For this reason, the availability of the switching capacity in the mobile switching center(MSC) is manipulated by the required volume of voice service. However, considering the increase of data service, it is desirable for the current switching method to be modified for more efficiency. In this Paper, we analyze the data traffic caused by providing data service in the wireless mobile telecommunication network. For this, we are firstly going to review the result of the analysis in the feature of the data traffic. Secondly, based on the review, we are also going to perform analyzing the other feature of the data traffic normally generated in the wireless mobile telecommunication network. We expect that this paper would be utilized as an elementary source for the feature of the SMS data .traffic and it will be an honour for ourselves to work on it.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2002.05a
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• pp.355-358
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• 2002

The network functional standard for MNP defines tile network functional structure and information flow to provide Number portability among the imt-2000 mobile phone. In this paper we define network function and system function and processing method of information which will be changed among them. In this paper, we also defines the processing method of SMS.

• Proceedings of the KIEE Conference
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• 2003.07a
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• pp.259-261
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• 2003

This paper suggests wireless diagnosis and monitoring system using SMS mode of mobile communication network for distribution transformer which could prevent electrical accident in the near future. Data are acquired by measuring the temperature of insulator oil in the distribution transformer and load current. Data acquisition of sensor using mobile communication network carried out filtering of sensor's output to optimize the size of send data Merit of this inspection method is that management, control and monitoring some transformers can be carried out using only one server. This inspection method will be the way of inspection to be worth spotlight in the near future because it is able to solve easily with the minimum facility inspection about state of transformer which is operating, to wide coverage about machine's wrong operation in other field.

• Proceedings of the Korean Society of Computer Information Conference
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• 2014.01a
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• pp.67-70
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• 2014

본 논문에서는 아두이노를 이용하고 SMS와 PHP를 기반으로 구축된 인터렉티브 종이비행기 게임시스템을 설계하고 구현한다. 본 시스템은 LCD가 설치된 건물과 센서가 부착되어 물체가 들어오면 인식할 수 있는 각기 독립된 4개의 방, 게임 사용자의 문자 메시지를 읽고 출력하는 용도의 프린트와 개인서버로 이루어진다. 설계단계는 PHP를 이용한 웹 서버를 통해 사용자가 보낸 문자 메시지를 읽어 오는 첫 번째 단계, 사용자가 보낸 문자메시지의 내용을 프린트를 통해 출력하는 단계, 출력된 내용의 프린트물이 비행기로 접혀 센서가 부착된 각기 다른 4개의 방으로 들어갔을 때 프린트에 적힌 문자메시지의 내용이 LCD에 출력되는 단계로 이루어진다.

• Journal of the Korea Safety Management & Science
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• v.16 no.2
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• pp.11-18
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• 2014

Advanced Safety Management System(SMS) of Korea Railroad Corporation for risk management should be established applying contents-centered domestic standard according to Railway Safety Act and process-centered international standards suggested by Lloyd's Register Company. Besides, laws, regulations, guidelines and manuals which are optimized for each sector should be systematically integrated to strengthen the consistency of SMS of KORAIL. New safety regulations and guidelines for safety management/train operations/maintenance should be established according to the safety policy of KORAIL to boost effective field work by regulations, guidelines, manuals, etc. The advanced Safety Management System will lead KORAIL as a competent global enterprise with its boosted reputation in the international railway market.

• Journal of Communications and Networks
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• v.15 no.1
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• pp.54-60
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• 2013

In this paper, a novel method called location-based delivery (LBD), which combines the short message service (SMS) and global position system (GPS), is proposed, and further, a realistic system for tracking a target's movement is developed. LBD reduces the number of short message transmissions while maintaining the location tracking accuracy within the acceptable range. The proposed approach, LBD, consists of three primary features: Short message format, location prediction, and dynamic threshold. The defined short message format is proprietary. Location prediction is performed by using the current location, moving speed, and bearing of the target to predict its next location. When the distance between the predicted location and the actual location exceeds a certain threshold, the target transmits a short message to the tracker to update its current location. The threshold is dynamically adjusted to maintain the location tracking accuracy and the number of short messages on the basis of the moving speed of the target. The experimental results show that LBD, indeed, outperforms other methods because it satisfactorily maintains the location tracking accuracy with relatively fewer messages.

• Journal of Navigation and Port Research
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• v.31 no.10
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• pp.891-896
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• 2007

This paper is the empirical study results on the introduction effects of safety management system(SMS) for the shipping company. First of all, we take a brief look at the present Korean situations after the SMS induction Next, we analyse the effect of the SMS induction. We divided the effect of induction in 21 factors. The result was 3.5 out of 5 perfect points, which shows the high preference. Higher points were scored with international companies than domestic ones, the companies accepted before 1998 than the ones after 1998, and large enterprises than smaller ones.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.16 no.1
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• pp.7-17
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• 2008

LOSA는 Line Operations Safety Audit(항공사 운항안전 감사)의 약자이며 기존의 적발 위주의 기존 Line Audit제도와 달리 조종사의 자발적 참여와 철저한 비밀을 유지하며, 처벌 금지 약속을 통하여 참여자가 평소 습관대로 비행할 수 있게 한다. 훈련된 감사관이 이를 소정의 절차서에 의거 조종석에서 관찰하여 실제의 안전취약 및 위협요소, Error를 포착해서 수집하고 텍사스대학 인적요인 연구소에서 분석하여 최종보고서를 작성하여 제도를 개선하는 안전프로그램이다. 제도와 방안을 개선하는 신개념의 선진 운항감사제도로서 안전관리시스템의 대표적인 비행안전 프로그램으로 통상 3${\sim}$4년을 주기로 실시한다. ICAO, IATA, FAA 및 IFALPA 실행 권고사항으로 현재 약30여개의 항공사가 실시하였다. LOSA는 2009년1월부터 ICAO부속서 6에 의거하여 항공사에서 실행해야 되는 SMS(안전관리 시스템)의 가장 효율적인 Hazard 식별 및 위험 관리도구 중의 하나이다. 본 논문에서는 안전관리시스템의 효과적 도구인 LOSA를 설명하고 항공사내 실행방법을 소개하는데 있다.

• Journal of the Korean Institute of Gas
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• v.3 no.3 s.8
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• pp.17-22
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• 1999

This study established management system integrated Safety$\cdot$Health, Management System(SHMS) and Environment Management System(ISO 14000) which satisfy all the systems through analyzing the PSM, SMS, BS 8800 and ISRS. Also, this study presented the guideline model which can make regular document forms in the integrated Safety, Health and Environment Management System. Furthermore, integrating management system developed in this study can reduce the duplication and inefficiency of materials and human resources in chemical industries

• Smart Media Journal
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• v.7 no.4
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• pp.24-29
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• 2018

Text analysis technique for natural language processing in deep learning represents words in vector form through word embedding. In this paper, we propose a method of constructing a document vector and classifying it into spam and normal text message, using word embedding and deep learning method. Automatic spacing applied in the preprocessing process ensures that words with similar context are adjacently represented in vector space. Additionally, the intentional word formation errors with non-alphabetic or extraordinary characters are designed to avoid being blocked by spam message filter. Two embedding algorithms, CBOW and skip grams, are used to produce the sentence vector and the performance and the accuracy of deep learning based spam filter model are measured by comparing to those of SVM Light.