• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2008.05a
• /
• pp.849-852
• /
• 2008

현대 사회의 급속한 발전 속에 네트워크 분야는 급속한 발전을 이루고 있다. 급변하는 네트워크 시장에서 홈 네트워크 분야는 일반인들에게 많은 관심을 증대시키고 있으며, 보다 안락한 생활을 위한 욕구의 충족을 위하여 자신의 주거지에 홈 네트워크를 구축하거나 홈 네트워크가 구현된 주거지를 선택하는 현상이 두드러지게 증대하고 있다. 이러한 현상에 발맞추어 홈 네트워크 시장의 규모는 빠른 속도로 증가하고 있는 실정이며, 이를 위한 여러 분야에 걸친 연구와 상업성을 기반으로 발전하고 그 적용범위를 확장하고 있다. 이러한 홈 네트워크의 구현은 점점 기술의 발달함에 따라 그 기능 또한 점점 복잡하고 다양한 프로세서의 처리를 필요로 하는 경향이 두드러지고 있다. 홈 네트워크 시스템은 여러 가지 요소에 의해 영향을 받기 때문에 시스템의 설계는 상당히 중요한 과정에 해당된다. 이에 본 논문에서는 임베디드 계발장비와 STR710F칩을 이용하여 확장성을 고려하여 홈 네트워크 시스템 노드를 구성하고, 이를 활용한 홈 네트워크 시스템을 설계하였다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2007.06a
• /
• pp.675-677
• /
• 2007

현재 우리 사회의 큰 관심사 중에 하나는 FTA 관세 장벽 철폐에 따른 부분이다. 또한 이로 인해 가장 큰 타격을 받는 부분은 산업 분야보다는 농업분야가 가장 클 것이란 사실은 우리가 당면한 현실이다. FTA 문제는 어제오늘의 문제가 아니라 오랜 시간동안 등장해온 문제이지만 우리에게는 이 문제에 대한 정부의 대책은 미흡하기만 하다. 이런 주위의 여건에서 정보화와 자동화 관리 시스템은 우리나라 농업분야에서 빠질수 없는 부분이 되어가고 있다. 농업 분야에서 세계화에 발맞추어가기 위해 추진 중인 여러 사업 중에는 농민들의 자발적인 참여로 인하여 추진중인 여러 사업들이 존재하고 이를 위한 자동화 관리 모델들의 발달 또한 추진중에 있다. 과수부분에 서의 사업을 예를 들면 썬키스트, 델몬트, 제스프리 등과 같은 세계화 브랜드의 육성이라는 전제하에 한국과수농협연합회가 '썬플러스 (Sunplus)'라는 사업을 추진 중에 있다. 현재의 사업은 참여 농가의 자발적인 의사에 따라 행해지고 있지만 구체적인 브랜드 관리 지침과 선별기준이 명확하게 갖추어져 있기 때문에 이행 여부에 관한 규제 문제 또한 문제가 되며, 장기적으로는 농가의 확대와 더불어 효율적이고 체계적인 농업 기술 정보의 수집과 향후 농업지도에 필요한 생산성 증대를 위한 농업정보의 DB 시스템 도입의 필요성이 증가하고 있다. 이번 연구에서는 농업 과수 부분에서의 무인 측정 시스템의 설치와 이를 이용한 환경 정보 수집을 위해 연구를 하고자 한다.

• Korean Journal of Community Nutrition
• /
• v.13 no.6
• /
• pp.890-902
• /
• 2008

The purpose of this study was to develop a standardized job description for dietitians working in the public health nutrition area. Work-oriented job analysis methodology was employed for the study purpose. Subjects of 38 dietitians currently working at health centers in 2002 were recruited. Based on the focus group interview with 7 public health nutritionists and 7 professors, information about task elements was collected. Questionnaires measuring work performance and self-perception of importance of the selected task elements were administered. Reliability and validity of this instrument were tested by Chronbach's alpha and factor analysis. SAS PC package program was used for the statistical analysis. The final developed job description for public health nutritionists included 5 duties, 20 tasks and 93 task elements. The results of this study can be summarized as follows; 1) 5 duty areas are A. plan and evaluation of public health nutrition services, B. developing nutrition education materials, C. implementing nutrition services, D. networking community, and E. self development. 2) Each duty area from A to E was composed with 6, 2, 6, 4, 2 tasks, respectively. 3) Each duty area from A to E was composed with 24, 8, 38, 14, 9, and 2 task elements, respectively.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.13 no.2
• /
• pp.431-436
• /
• 2009

Home network is a rapidly growing area as new technologies are emerging, and new applications are being developed. The progress of home network technologies is growing the home network management technology for control and management of the digital appliances. Embodiment of these home network show marked ich have use for complicated and diversifiable processing. Design of home network system does very important stage through home network comes essential pars. In this paper, We designed and constitute Home network system which designs module using embedded system, STR710F Chip and CC2420 RF Module-Chip with the intention for using RS232C and USB.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2012.05a
• /
• pp.896-898
• /
• 2012

Recently, many countries are making efforts for the development of ocean resources because the necessity and importance of the ocean resources are increased. Underwater sensor networks have emerged as a very powerful technique for many applications, including monitoring, measurement, surveillance and control and envisioned to enable applications for oceanographic data collection, ocean sampling, environmental and pollution monitoring, offshore exploration, disaster prevention, tsunami and seaquake warning, assisted navigation, distributed tactical surveillance, and mine reconnaissance. The idea of applying sensor networks into underwater environments (i.e., forming underwater sensor networks) has received increasing interests in monitoring aquatic environments for scientific, environmental, commercial, safety, and military reasons. The data obtained by observing around the environment are wireless-transmitted by a radio set with various waves. According to the technical development of the medium set, some parameters restricted in observing the ocean have been gradually developed with the solution of power, distance, and corrosion and watertight by the seawater. The actual matters such as variety of required data, real-time observation, and data transmission, however, have not enough been improved just as various telecommunication systems on the land. In this paper, a wireless management system will be studied through a setup of wireless network available at fishery around the coast, real-time environmental observation with RF sensor, and data collection by a sensing device at the coastal areas.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.14 no.11
• /
• pp.2581-2585
• /
• 2010

In the field of network sense for the Ubiquitous environment, the technology of RFID is a significant part. Due to the real time processing of information and the property of network, RFID has been used in service field such as distribution, administrative control of physical distribution, remote measuring device, and security. instead of currently used bar-code. The management system of port facilities using the current RFID technology has the effects of reducing working hours and improvement in data processing, but it is not proper for human resource allocation since it is dominantly worked for physical resources. In this paper, we designed and implemented personnel control system using RFID of 2.4GHz in port facilities which presents a monitoring system for safety operation and increase of efficiency using RFID in order to overcome the limitations and problems of current port operation management techniques.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2010.10a
• /
• pp.520-523
• /
• 2010

In the field of network sense for the Ubiquitous environment, the technology of RFID is a significant part. Due to the real time processing of information and the property of network, RFID has been used in service field such as distribution, administrative control of physical distribution, remote measuring device, and security, instead of currently used bar-code. The management system of port facilities using the current RFID technology has the effects of reducing working hours and improvement in data processing, but it is not proper for human resource allocation since it is dominantly worked for physical resources. In this paper, we designed and implemented personnel control system using RFID of 2.4GHz in port facilities which presents a monitoring system for safety operation and increase of efficiency using RFID in order to overcome the limitations and problems of current port operation management techniques.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.37 no.1C
• /
• pp.8-16
• /
• 2012

In order for the support of the ETCS (Electronic Toll Collection System) model, which have been operated successfully till now, with multi-lane service, the wireless communication system of the multi-lane-supported ETCS based on RF-DSRC (Radio Frequency - Dedicated Short Range Communication) was used. In this paper, the SME algorithm attaching data flow and form into RFID communication technology was newly suggested to overcome technical problems on RF-DSRC communication system. In addition, in order to verify the SME algorithm, experiments based on ETCS and 900Mhz RFID were carried out. From the result of realization experiment of RFID dependent on the velocity and precision experiment of information inside of RFID, we can see that RFID is detected below 70Km/h and the precision of estimation is more than 90%.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2008.10a
• /
• pp.832-835
• /
• 2008

An information-oriented basis in today's society has been changing fast, and the desire for connectivity has caused an exponential growth in wireless communication and sensor network. Sensor networks using RFID, in particular, have led this trend due to the increasing exchange of data in Ubiquitous such as the home RF, access control system, U-Healthcare, and Logistics information Systems. Also, the RFID when it applies a technique, is able to raise the stability of shipping as controling the mobile course and an entrance and exit of the crews an well as previously preventing an accident from shipping. In this paper, we designed and implemented personnel control system using UHF-RFID in vessels which shows through host PC reading and writing tag.

• Korean Journal of Community Nutrition
• /
• v.2 no.4
• /
• pp.605-615
• /
• 1997

The job characteristics and competencies of 285 dietitians in employee foodservices were investigated by worker-oriented job analysis methodology. The purposes of this study were to : a) determine the knowledge, abilities, skills and other characteristics(KASO) needed for dietitians in two types of employee foodservice groups(self-operated vs. contracted), b) categorize KASO items by factor analysis and c) provide job information and job descriptions for dietitians in employee foodservices. The job analysis questionnaire was consisted of questions concerning the 134 KASO items. The questionnaire was mailed to 250 dietitians who are members of The Korean Dietetic Association Practice Group in self-operated foodservices(group A) and 250 dietitians who are employed in contracted foodservice companies(group B). Completed questionnaires were received from 285 dietitians(121 in self-operated, 164 in contracted) ; with response rate of 57%. Statistical data analysis was completed using the SPSS/win and the SAS/win packages. The results of this study can be summarized as follows. 1) Through factor analysis, the 134 KASO items were regrouped into 6 categories :‘primary dietetic tasks concerning menu management and administrative work regarding merchants’, ‘primary dietetic tasks concerning procurement and purchasing of food and supplies and meal production and service control’, ‘primary dietetic tasks concerning facility, sanitation and safety control’, ‘secondary dietetic tasks concerning nutrition education and research’, ‘secondary dietetic tasks concerning foodservice operation management’and‘human attributes’. 2) Analysis of the total scores(average scores of degree of frequency, importance and entry requirements of KASO items within 6 categories), group A showed high priorities placed on‘human attributes’, ‘procurement and purchasing of food and supplies and meal production and service control’, ‘menu management and administrative work regarding merchants’, ‘whereas group B showed high priorities placed on’‘human attributes’, ‘foodservice operation management’. (Korean J Community Nutrition 2(4) : 605-615, 1997)