• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.21 no.7
• /
• pp.462-474
• /
• 2020

The purpose of this study is to provide fundamental data for robot-based education at home by analyzing the factors affecting the recognition and technology acceptance attitudes of mothers with young children. For this purpose, a questionnaire survey was administered to 319 mothers with young children in Seoul and Gyeonggi Province, and one-way ANOVA, chi-square, correlation analysis, and regression analysis were conducted for statistical verification. As a result, there was a significant difference in the robot-based education at home of mothers to child according to their final educational background. Mothers' acceptance intention, perceived ease of use, perceived usefulness, social influence of robot application and personal innovation were all positively correlated. The factors that affect intention of acceptance were perceived ease of use and perceived usefulness of robot application. Conclusively, mothers with young children use robot-based education at home when it is more convenient to use and has educational effects more than the personal innovation or social influence. These study results are meaningful ahead of the 4th industrial revolution in that we provided basic data for the correct direction of robot-based education to young children at home.

• Journal of Broadcast Engineering
• /
• v.23 no.1
• /
• pp.19-25
• /
• 2018

The growth of virtual reality(VR), which is regarded as a part of the 4th industrial revolution, is being delayed differently from the prediction. In this study, we briefly analyze these reasons from the point of view of CPND ecosystem. Virtual reality is a technology in which a user wears a device and accesses a platform through a network to use various contents. Therefore, balanced development of C-P-N-D ecosystem fields is important for successful popularization of virtual reality. In Korea, content, platforms, and devices, except for the network, are evaluated as having low competitiveness. While efforts to secure competitiveness in individual fields are important, it is also necessary to nurture network-based platforms that can utilize killer content. It should be kept in mind that simple breeding of killer content alone can not build an entire virtual reality C-P-N-D ecosystem, and the broadcast / media sector also needs to take this approach.

• Journal of the Korea Convergence Society
• /
• v.9 no.5
• /
• pp.27-32
• /
• 2018

IoT technology is developing with various application areas in $4^{th}$ Industrial revolution. There are many users using the application services. Sensing data from various environment need to be transferred to cloud computing storage and store in the cloud storage. However, physical distance from the end node to cloud computing storage is far away, and it is not efficient to transfer data from sensors and store the sensing data in the cloud storage whenever sensing data happen. Therefore, Fog computing is proposed to solve these problems which can process and store the sensing data. However, Fog computing is new emerging technology, there is no standard security model and requirements. This research proposes to security requirements and security model for Fog computing to establish a secure and efficient cloud computing environment.

• Journal of Digital Convergence
• /
• v.15 no.8
• /
• pp.115-126
• /
• 2017

Organizational trust is recognized as a factor that is directly linked to the organization's success in the sudden change represented by the 4th Industrial Revolution and uncertainties. This study selected trust and distrust as separate concepts and verified the structural relationship between organizational justice, psychological contract, trust, distrust, and turnover intention. Organizational justice was significant as a antecedents of distrust, whereas psychological contract was antecedents of trust, and distrust only had a significant effect on turnover intention. This result supports that trust and distrust are not one dimensions but two separate concepts. Also, organizational justice had no direct effect on turnover intention and only indirect effect through distrust was significant. This study has implications for both theoretical and practical aspects in terms of identifying the differential effects of trust and distrust.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.22 no.10
• /
• pp.1320-1326
• /
• 2018

Digital video equipment is important in the 4th industrial revolution and is widely used in different fields for various purpose. Data of digital video equipment is exposed to noise due to different reasons including user environment and processing and such noise affect output and processing method. This can even cause error, resulting in decreased reliability of the equipment. In this research, it offers algorithm to effectively recover video by removing noise and impulse noise occurring during the process of channel delivery. This proposed algorithm recovers video by exploring valid pixel using directional local mask and noise determination. Then, valid pixel calculated goes through the final output calculation through comparative analysis on estimation. For comparing suggested method and algorithm, simulation is carried out. For checking the function of it, PSNR and profile are analyzed.

• Journal of Digital Convergence
• /
• v.17 no.11
• /
• pp.81-89
• /
• 2019

In order to foster talented people needed for the 4th Industrial Revolution, learner-centered classes that meet the characteristics and needs of students are needed. In particular, the learner-centered student-active class is more meaningful for gifted students who have diverse needs and interests. In order to meet these demands, this study developed a learner-centered science gifted education teaching-learning model based on flipped learning, and analyzed various results revealed after applying the developed program to the gifted class. Based on the results, we proposed a plan for more efficient operation of future learner-centered science gifted education programs.

• Journal of The Korean Association of Information Education
• /
• v.25 no.5
• /
• pp.769-778
• /
• 2021

Humanity faces the 4th industrial revolution, many countries are providing systematic and continuous SW education to foster talent with AI capabilities. On the other hand, there are high concerns that the SW gap will widen and polarize as domestic reality does not provide systematic and continuous SW education to learners. Against this background, this study started to investigate the influence of learners' SW experience on SW education. As a result of the study targeting science and engineering students, the effect of SW experience on SW education was significant. With theses results, it is expected that various discussions will be actively conducted so that systematic and continuous SW education can be provided in elementary and secondary schools.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2019.05a
• /
• pp.138-139
• /
• 2019

In the era of the 4th industrial revolution, automated technology innovation is emerging, and container terminals are being developed to introduce automation equipment and systems. With the advent of ultra-large vessels, terminals around the world are seeking to build port infrastructure by combining automated technology in order to attract more cargo and to enhance competitiveness to provide prompt service. To introduce automated technology that is emerging as a high-tech industry, this study proposes a structural equation model for the decision to introduce automated container terminal and conducts a questionnaire survey on workers engaged in terminal operators for empirical analysis. This paper presents the role and direction of guidelines for introduction of automated container terminal through decision model.

• Convergence Security Journal
• /
• v.23 no.1
• /
• pp.97-107
• /
• 2023

With the popularization of digital devices in the era of the 4th industrial revolution and the increase in cyber crimes targeting them, the importance of securing digital data evidence is emerging. However, the difficulty in securing digital data evidence is due to the use of anti-forensic techniques that increase analysis time or make it impossible, such as manipulation, deletion, and obfuscation of digital data. Such anti-forensic is defined as a series of actions to damage and block evidence in terms of digital forensics, and is classified into data destruction, data encryption, data concealment, and data tampering as anti-forensic techniques. Therefore, in this study, anti-forensic techniques are categorized into data concealment and deletion (obfuscation and encryption), investigate and analyze recent research trends, and suggest future anti-forensic research directions.

• Journal of Internet of Things and Convergence
• /
• v.10 no.1
• /
• pp.53-58
• /
• 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.