• Journal of the Institute of Electronics Engineers of Korea SC
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• v.47 no.6
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• pp.73-79
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• 2010

The number of electronic embedded software in vehicle system is ever increasing for years. As a result, the electronic control units have been growing dramatically, and it is required to mutual link between these units. Due to separate API each and every embedded platform, it is difficult to develop and integrate in automotive industry. The AUTOSAR project consists suppliers and manufacturers, and the partnership is a standardized platform to establish and develop an industry standard. On the previous works, we implemented the RTE generated module design based on AUTOSAR architecture. This paper specifically focuses on the testing of the development tool that generates RTE source code. The result satisfied a need for a RTE requirements and AUTOSAR methodology in a vehicle applications.

• Korean Journal of Construction Engineering and Management
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• v.9 no.6
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• pp.225-234
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• 2008

The engineering competitiveness of domestic construction companies is 70$\sim$80% of advanced countries. And Korean' companies fall behind China and South-East Asia in a competitive price. Recently, there are increased the amount of overseas order received in Korean construction companies. But, there is not enough the supporting policy of government. Therefore, this research compared and analyzed the competitiveness of domestic construction companies throughout benchmarking support system of overseas construction in advanced companies. Such research was obtained through business trip & consultation with related specialists for the difficulties of domestic companies in advancing into overseas market. This research provided governmental plans to advance into overseas market. First, this research provided assurance system and connected plan of ODA(Official Development Assistant) in construction. Second, this research suggested the improvement of overseas marketing survey and overseas construction marketing center. Third, this research provided the support system of bidding information and the training system of professionals.

• Journal of the Korean Institute of Intelligent Systems
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• v.26 no.3
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• pp.169-175
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• 2016

There are many researches to develop robots that improve its mobility and task planning to adapt in various uneven environments. In this paper, we propose the design method and task planning of quadruped robot which can have top-bottom docking structure. The proposed quadruped robot is designed to adjust leg length using linear actuators and perform top-bottom docking and undocking using octagonal cone shaped docking module. Also, to stable walking and information gathering in the various environments, a geomagnetic sensor, PSD sensor, LRF sensor and camera. We propose an obstacle avoidance method and the topbottom docking algorithm of the two quadruped robots using linear actuator. The robot can overcome obstacles using adjusting leg length and activate the top-bottom docking function. The top-bottom docking robots of two quadruped robot can walk 4 legged walking and 6 legged walking, and use 4 arms or 2 arms the upper. We verified that the docking robots can carry objects using 4 leg of the upper robot.

• The Journal of Korean Institute for Practical Engineering Education
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• v.4 no.1
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• pp.86-92
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• 2012

For the successful operation of IPP program which is a unique Korean Co-op education program designed and implemented by Korea Tech, it is very crucial to have both a reasonable performance evaluation system and a systematic feedback and upgrading system for the program. In this paper, we will provide the logic model for long-term performance evaluation of Korea Tech's IPP program. Since the critical success factors(CSF) and Key Performance Index(KPI) are very important for the IPP program implementation, they are also provided and discussed in detail. In addition, we will discuss and analyze about the student and the industry survey results for IPP program's sucess factors.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.18 no.2
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• pp.133-139
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• 2018

As the cremation usage in ehaneul funeral information system through online reservation service is showed to increase 50.7% that with use the case of from the 37,784corpse in 2011 to 56,945 corpse in 2017. With these increasing, Seoul Metropolitan City should implement the following policies in order to improve the operation of public cremation facilities. First, additional cremators should be built through smooth negotiations with local residents who live around the planned locations. Second, Seoul Metropolitan City should implement cooperative projects of building joint public cremation facilities with local governments of Gyeonggi-do that are adjacent to Seoul Metropolitan City. Third, decentralize demand of cremation through the establishment of cremation facilities exclusively for open tomb in Seoul Municipal Cemetery. Lastly, should take measures to control cremation demand by expanding differentiated operation of public cremation facilities' use hours for people who live in other regions except residents of Seoul Metropolitan City and by increasing cremation charges.

• Journal of Advanced Navigation Technology
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• v.15 no.4
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• pp.632-639
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• 2011

Searching distributed resource efficiently is very important in distributed computing, cloud computing environment. Distributed resource searching may have system overheads and take much time in proportion to the searching number, because distributed resource searching has to circuit many peers for searching information. The open-source community project JXTA defines an open set of standard protocols for ad hoc, pervasive, peer-to-peer computing as a common platform for developing a wide variety of decentralized network applications. In this paper, we proposed peer search algorithm based on JXTA-Sim. original JXTA peer searching algorithm selected a loosely-consistent DHT. Our Lookup algorithm decreases message number of WALK_LOOKUP and reduce the network system overload, and we make a result of same performance both original algorithm and our proposed algorithm.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.22 no.6
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• pp.849-854
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• 2018

Radio base stations, which are widely distributed across large areas, have many difficulties in managing them. Unmanned radio base stations in remote mountains are having a hard time accessing them in case of emergencies. Major telephone service providers only remotely control incoming and outgoing information and local small business partners responsible for maintaining actual facilities do not possess such technologies, so they are each checked during field visits. In this study, in order to process the sensor raw data and smoothing, we apply the particle filters and confirmed that the performance of sensor data accuracy is increased. Integrated system using temperature, humidity, fire condition, and power operation at a wide range of radio base stations under the real-time monitoring status is operated well. It show that all of the status of base station are monitored at the remote office using the cloud server through internet networking.

• The KIPS Transactions:PartA
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• v.12A no.5 s.95
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• pp.433-440
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• 2005

The sharing of objects for authoring frequently occurs among participating users in a cooperative authoring system where many users can collaborate. Floor control is therefore needed not only for minimizing the race condition during object accesses but also for ensuring the exclusive use of objects. h floor is a temporary access right that is given to a participating user who wants to use a shared object. Although the floor control methods for a single session environment can be found in various literature, those methods for a multi-session environment can hardly be found. In a multi-session environment, an object can be shared by multiple sessions. As a solution to the problems due to object sharing in such an environment, this paper presents a floor control method based on the chair-of-chair guidance. This method is an extension of those based on traditional chair guidance; the chair-of-chair elected among session chairs exists in this method.

• Journal of Internet Computing and Services
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• v.8 no.2
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• pp.55-65
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• 2007

BcN is a high-quality broadband network for multimedia services integrating telecommunication, broadcasting, and Internet seamlessly at anywhere, anytime, and using any device. BcN is Particularly vulnerable to intrusion because it merges various traditional networks, wired, wireless and data networks. Because of this, one of the most important aspects in BcN is security in terms of reliability. So, in this paper, we suggest the sharing mechanism of security data among various service networks on the BcN. This distributed, hierarchical architecture enables BcN to be robust of attacks and failures, controls data traffic going in and out the backbone core through IP edge routers integrated with IDRS. Our proposed anomaly detection scheme on IDRS for BcN service also improves detection rate compared to the previous conventional approaches.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.40 no.2
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• pp.99-103
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• 2017

Productivity improvement is one of the important goals which firms' technology developments aim at. Firms' improved productivity from technology development means that their inputs can produce more outputs through technology development, which makes firms' productivity improvement from technology development more and more important in the age of technology advance and convergence like today. This research empirically analyzes the influence of the external technology collaboration network diversity on the productivity improvement of the small and medium-sized enterprises (SMEs) from technology development and the moderating effect of the chief technology officer (CTO)-driven technology development on this influence. This study constructs the research model reflecting the moderating impact of the CTO-driven technology development and tests it with the ordinary least squares regression through the IBM SPSS version 23 by using the 2,000 data about South Korean SMEs. This research empirically reveals two points. One is that SMEs' external technology collaboration network diversity has a positive influence on their productivity improvement from technology development. The other is that the positive effect of SMEs' external technology collaboration network diversity on their productivity improvement from technology development is moderated by the CTO-driven technology development. The two points revealed in this study present two meaningful implications in not only the practical but also academic point of view. The practical implication is that it is effective for SMEs to use CTOs in increasing their productivity improvement from technology development. The academic implication is that making technology collaboration with more diverse external partners can increase SMEs' productivity improvement from technology development.