• 제목/요약/키워드: Remote Services

검색결과 710건 처리시간 0.022초

Fast UAV Deployment in Aerial Relay Systems to Support Emergency Communications (위급상황 통신 지원용 공중 통신중계기의 빠른 배치 기법)

  • Sang Ik, Han
    • Journal of the Korea Institute of Information and Communication Engineering
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    • 제27권1호
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    • pp.62-68
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    • 2023
  • An aerial relay system utilizing an unmanned aerial vehicle(UAV) or drone is addressed for event-driven operations such as temporary communication services for disaster affected area, military and first responder support. UAV relay system (URS) targets to provide a reliable communication service to a remote user equipment or an operator, therefore, a fast UAV placement to guarantee a minimum quality of service(QoS) is important when an operation is requested. Researches on UAV utilization in communication systems mostly target to derive the optimal position of UAV to maximize the performance, however, fast deployment of UAV is much more important than optimal placement under emergency situations. To this end, this paper derives the feasible area for UAV placement, investigates the effect of performance requirements on that area, and suggests UAV placement to certainly guarantee the performance requirements. Simulation results demonstrate that the feasible area derived in this paper matches that obtained by an exhaustive search.

Automatic Adaptation Based Metaverse Virtual Human Interaction (자동 적응 기반 메타버스 가상 휴먼 상호작용 기법)

  • Chung, Jin-Ho;Jo, Dongsik
    • KIPS Transactions on Software and Data Engineering
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    • 제11권2호
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    • pp.101-106
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    • 2022
  • Recently, virtual human has been widely used in various fields such as education, training, information guide. In addition, it is expected to be applied to services that interact with remote users in metaverse. In this paper, we propose a novel method to make a virtual human' interaction to perceive the user's surroundings. We use the editing authoring tool to apply user's interaction for providing the virtual human's response. The virtual human can recognize users' situations based on fuzzy, present optimal response to users. With our interaction method by context awareness to address our paper, the virtual human can provide interaction suitable for the surrounding environment based on automatic adaptation.

A Study on the Utilization of Metaverse Space in Local Governments from the Perspective of Public Design (공공디자인의 관점에서 본 지자체의 메타버스 공간 활용에 관한 연구)

  • Choi, Jae-won;Yeo, Joon-ki
    • The Journal of the Convergence on Culture Technology
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    • 제8권5호
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    • pp.705-712
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    • 2022
  • The pandemic over the past three years has brought drastic changes in our lives, and those changes are now becoming a natural part of our daily lives. Daily life and economic activities based on online, such as video conferencing, remote classes, telecommuting, and online streaming services, have become daily routines after Corona. And the result of rapid development of communication and graphic technology is the metaverse. Therefore, the purpose of this study is to study the possibility from the perspective of public design for the correct use of the metaverse space of local governments. To this end, in this study, big data analysis was performed on 'local government', 'public design', and 'metaverse'. As a result of this study, we should actively use metaverse with high topic and potential as a space for local governments' promotion or discussion as a means to restore the reliability of local governments and overcome negative perceptions. In addition, it is necessary to actively reflect public design in order to increase the public reliability of local governments' metaverse.

A Decision Support System for Smart Farming in Agrophotovoltaic Systems (영농형 태양광 시스템에서의 스마트 농업을 위한 의사결정지원시스템)

  • Youngjin Kim;Junyong So;Yeongjae On;Jaeyoon Lee;Jaeyoon Lee
    • Journal of Korean Society of Industrial and Systems Engineering
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    • 제45권4호
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    • pp.180-186
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    • 2022
  • Agrophotovoltaic (APV) system is an integrated system producing crops as well as solar energy. Because crop production underneath Photovoltaic (PV) modules requires delicate management of crops, smart farming equipment such as real-time remote monitoring sensors (e.g., soil moisture sensors) and micro-climate monitoring sensors (e.g., thermometers and irradiance sensors) is installed in the APV system. This study aims at introducing a decision support system (DSS) for smart farming in an APV system. The proposed DSS is devised to provide a mobile application service, satellite image processing, real-time data monitoring, and performance estimation. Particularly, the real-time monitoring data is used as an input of the DSS system for performance estimation of an APV system in terms of production yields of crops and monetary benefit so that a data-driven function is implemented in the proposed system. The proposed DSS is validated with field data collected from an actual APV system at the Jeollanamdo Agricultural Research and Extension Services in South Korea. As a result, farmers and engineers enable to efficiently produce solar energy without causing harmful impact on regular crop production underneath PV modules. In addition, the proposed system will contribute to enhancement of the smart farming technology in the field of agriculture.

Trend in utilization of Global Navigation Satellite System for diseases and E-health (질병 및 E-health에 대한 위성항법시스템 활용 동향)

  • Tae-Yun Kim;Jung-Min Joo;Jeong-Hyun Hwang;Suk-Seung Hwang
    • The Journal of the Korea institute of electronic communication sciences
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    • 제18권3호
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    • pp.545-554
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    • 2023
  • In modern industry, the Global Navigation Satellite System(GNSS) is utilized in various fields, where PNT information (P: Positioning, N: Navigation, T: Timing) is always provided and the accurate location estimation based on PNT information is required. In particular, in order to prevent the infection and the spread of the COVID-19 pandemic situation that began in 2019, the precise GNSS technology and various supporting techniques have been used, and, with active quarantine and efforts for the infection spread restrain around the world, we are facing the transition to an endemic situation. In fields of disease and E-health, the location information of users is absolutely necessary to track and monitor infectionous diseases and provide remote medical services, and GNSS plays a leading role in providing the accurate location information. This paper presents investigation results on the up-to-date research trends in which GNSS technologies are employed in the field of disease and E-health, and analyzes the results.

Suggestion on Modified Models of Service Blueprint for Product-Service System (제품-서비스 시스템을 위한 서비스블루프린트 수정모형의 제안)

  • Lee, Eun Sol;Yeoun, Myeong Heum
    • Design Convergence Study
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    • 제16권3호
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    • pp.69-84
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    • 2017
  • Service blueprint is used to show the interaction between each service element at a glance and to understand the flow of the whole service centering on the customer at the stage of proposing a new service system. It was proposed in the 1980s before online business was developed. However, current services are changing in a way that provides various forms and channels, and the service blueprint seems to be not enough. To reflect this problem consciousness, we selected PSS among diversified service business models and propose a service blueprint type optimized for each business. After collecting 137 PSS cases to be used in the research, we made a business matrix and classified the cases and selected two representative cases to conduct two experiments. As a result, six types of service blueprint corresponding to the matrix could be derived: online service type, online remote support type, self rental type, online order type, traditional type, and offline support type. The validity of the proposed types of service blueprint was verified to confirm the suitability of those types.

Cloud security authentication platform design to prevent user authority theft and abnormal operation during remote control of smart home Internet of Things (IoT) devices (스마트 홈 사물인터넷 기기(IoT)의 원격제어 시 사용자 권한 탈취 및 이상조작 방지를 위한 클라우드 보안인증 플랫폼 설계)

  • Yoo Young Hwan
    • Convergence Security Journal
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    • 제22권4호
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    • pp.99-107
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    • 2022
  • The use of smart home appliances and Internet of Things (IoT) devices is growing, enabling new interactions and automation in the home. This technology relies heavily on mobile services which leaves it vulnerable to the increasing threat of hacking, identity theft, information leakage, serious infringement of personal privacy, abnormal access, and erroneous operation. Confirming or proving such security breaches have occurred is also currently insufficient. Furthermore, due to the restricted nature of IoT devices, such as their specifications and operating environments, it is difficult to provide the same level of internet security as personal computers. Therefore, to increase the security on smart home IoT devices, attention is needed on (1) preventing hacking and user authority theft; (2) disabling abnormal manipulation; and (3) strengthening audit records for device operation. In response to this, we present a plan to build a cloud security authentication platform which features security authentication management functionality between mobile terminals and IoT devices.

A Study on Security Threats and Countermeasures in Smart Farm Environments (스마트 팜 환경에서 보안 위협 및 대응 방안에 관한 연구)

  • Sun-Jib Kim
    • Journal of Internet of Things and Convergence
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    • 제10권1호
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    • pp.53-58
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    • 2024
  • IoT, Big-data, AI, and Cloud technologies, which are core technologies of the 4th Industrial Revolution, have recently been applied to various fields and are being used as core technologies for new growth engines. Accordingly, these core technologies are applied to the agricultural field without exception, contributing to solving the problem of labor shortage, reducing production costs, and reducing environmental burden through remote and automated production without time and space constraints. However, as these core technologies are utilized, security incidents are occurring in the agricultural field as well. Accordingly, this study divides smart farms into three stages(Basic, Middle, and High) and presents the characteristics and security threats of each stage. In particular, as the number of container-based services and research increases under cloud platforms, we would like to suggest countermeasures focusing on security threats.

Strengthening Enterprise Security through the Adoption of Zero Trust Architecture - A Focus on Micro-segmentation Approach - (제로 트러스트 아키텍처 도입을 통한 기업 보안 강화 방안 - 마이크로 세그먼테이션 접근법 중심으로 -)

  • Seung-Hyun Joo;Jin-Min Kim;Dae-Hyun Kwon;Yong-Tae Shin
    • Convergence Security Journal
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    • 제23권3호
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    • pp.3-11
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    • 2023
  • Zero Trust, characterized by the principle of "Never Trust, Always Verify," represents a novel security paradigm. The proliferation of remote work and the widespread use of cloud services have led to the establishment of Work From Anywhere (WFA) environments, where access to corporate systems is possible from any location. In such environments, the boundaries between internal and external networks have become increasingly ambiguous, rendering traditional perimeter security models inadequate to address the complex and diverse nature of cyber threats and attacks. This research paper introduces the implementation principles of Zero Trust and focuses on the Micro Segmentation approach, highlighting its relevance in mitigating the limitations of perimeter security. By leveraging the risk management framework provided by the National Institute of Standards and Technology (NIST), this paper proposes a comprehensive procedure for the adoption of Zero Trust. The aim is to empower organizations to enhance their security strategies.

Social Wasp Diversity and Wasp Nest Removal Trends on Ulleungdo Island, South Korea

  • Jaehee Kim;Il-Kwon Kim;Ohseok Kwon;Moon Bo Choi
    • Proceedings of the National Institute of Ecology of the Republic of Korea
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    • 제4권4호
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    • pp.146-153
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    • 2023
  • This study aimed to conduct a comprehensive survey of social wasp diversity and its impacts on remote Ulleungdo Island, South Korea. A total of 12 wasp traps were placed across the island, and specimens were collected monthly from May to October. Additional collection was conducted by thoroughly inspecting the areas surrounding the traps. The traps yielded a total of 5,068 individuals, representing two genera and two species. A total of 3,961 Vespa simillima simillima Smith individuals (78.2%) were collected, and 1,107 individuals (21.8%) were identified as Vespula flaviceps flaviceps Smith. Additionally, five individuals of Polistes snelleni de Saussure were collected through sweeping, bringing the total to 5,132 individuals of three genera and three species. It is worth noting that our findings indicate potential misidentifications in the species list of Vespidae found in the literature. Emergency services call centers reported the removal of 60 social wasp nests on Ulleungdo Island between 2018 and 2022, with the highest number of reports occurring from July to September, accounting for 87% of all cases. Dodong-ri and Jeodong-ri, with the highest populations, reported the most incidents, although fortunately, there have been no recent injuries. Past incidents involving the destruction of dried squid products by Vespula species have resulted in significant economic losses, underscoring the need for preventative measures. Furthermore, ongoing surveillance of hornet invasions is essential to safeguard the Jangwon bees being reared on Ulleungdo Island.