• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2014.05a
• /
• pp.561-564
• /
• 2014

The Rare Isotope Science Project (RISP) at the Institute for Basic Science (IBS) constructs the rare isotope accelerator facility in South Korea. Since the accelerator control system uses various Ethernet-based devices and equipment, it is essential to build a unified Network-based control system. Because of the complexity of the accelerator facility, it will be a challenge to install a device in a proper location where the device could react quickly and exactly with respect to network security. In this report, we will present early study on Simple Network Management Protocol (SNMP) that tests various Ethernet-based devices out on an ideal network configuration in order to find an optimal location for each Ethernet-based device. Moreover, we will discuss future plan to integrate SNMP into Experimental Physics and Industrial Control System (EPICS) that is distributed soft real-time control systems for scientific instruments such as a particle accelerators, telescopes and other large scientific experiments.

• Journal of Digital Convergence
• /
• v.10 no.1
• /
• pp.371-378
• /
• 2012

Through sensor nodes it can obtain behavior, condition, location of objects. Generally speaking, sensor nodes are very limited because they have a battery power supply. Therefore, for collecting sensor data, efficient energy management is necessary in order to prolong the entire network survival. In this paper, we propose a method that increases energy efficiency to be self-configuring by distributed sensor nodes per cluster. The proposed method is based on the ANTCLUST. After measuring the similarity between two objects it is method that determine own cluster. It applies a colonial closure model of ant. The result of an experiment, it showed that the number of alive nodes increased 27% than existing clustering methods.

• Proceedings of the KSRS Conference
• /
• v.2
• /
• pp.768-771
• /
• 2006

In WSN(Wireless Sensor Network) environment, a large amount of sensors, which are small and heterogeneous, generates data stream successively in physical space. These sensors are composed of measured data and metadata. Metadata includes various features such as location, sampling time, measurement unit, and their types. Until now, wireless sensors have been managed with individual specification, not the explicit standardization of metadata, so it is difficult to collect and communicate between heterogeneous sensors. To solve this problem, OGC(Open Geospatial Consortium) has proposed a SensorML(Sensor Model Language) which can manage metadata of heterogeneous sensors with unique format. In this paper, we introduce a metadata model using SensorML specification to manage various sensors, which are distributed in a wide scope. In addition, we implement the metadata management module applied to the sensor data stream management system. We provide many functions, namely generating metadata file, registering and storing them according to definition of SensorML.

• Korean Journal of Computational Design and Engineering
• /
• v.4 no.4
• /
• pp.371-380
• /
• 1999

This study proposes a process information model which can integrate various activities during the product development process, the system which can manage the process. Development process information will allow designers and managers to access previous tasks readily and utilize the information in making decisions at hand. While developing products in heterogeneous and distributed environments, concurrent and collaborative designs can be achieved by STEP. The process model in this study divides the task of product development into two fundamental parts, Specific Process(SP) and Normal Process(NP). SP includes the specific information and refer to those defined by prior STEP. NP is routine process excluded from being defined as SP. Due data information can be added to manage development pace and to show delayed tasks. As two or more different processes can be linked to show the entire development flow, Static STEP information can be dynamically interlaced. Remote location operations can be incorporated on the Internet using STEP, and information can be shared. The system has been built upon a process model schema so that task stage, design history, and different development style can be managed and accessed for each component. The system has been proven efficient in information management and exchange by several scenario testings.

• Proceedings of the Korean Society of Agricultural Engineers Conference
• /
• 2005.10a
• /
• pp.632-636
• /
• 2005

Accelerated soil erosion is a worldwide problem because of its economic and environmental impacts. To effectively estimate soil erosion and to establish soil erosion management plans, many computer models have been developed and used. The Revised Universal Soil Loss Equation (RUSLE) has been used in many countries, and input parameter data for RUSLE have been well established over the years. However, the RUSLE cannot be used to estimate the sediment yield for a watershed. Thus, the GIS-based Sediment Assessment Tool for Effective Erosion Control (SATEEC) was developed to estimate soil loss and sediment yield for any location within a watershed using the RUSLE and a spatially distributed sediment delivery ratio. SATEEC was enhanced in this study by developing new modules to:1) simulate the effects of sediment retention basins on the receiving water bodies, 2) prepare input parameters for the Web-based sediment decision support system using a GIS interface. This easy-to-operate SATEEC system can be used to identify areas vulnerable to soil loss and to develop efficient soil erosion management plans.

• Journal of Korean Society of Water and Wastewater
• /
• v.30 no.5
• /
• pp.491-500
• /
• 2016

Pressure monitoring is expected to be expanded in a water distribution system according to accelerated development of smart water network management technologies caused by appearances of affordable digital infrastructures like computing, storage and bandwidth. However, the placement of pressure sensors has been determined by engineer's technical decisions since there is no well-defined criteria for deciding a suitable location of pressure sensor. This study presents a placement method of pressure sensors based on the consideration of allowable error in calibrating water network analysis modeling. The proposed method is to find a minimum set of pressure sensors for achieving a reliable management of water transmissions main and increasing the efficiency of their real-time operation. In the case study in Y area's transmission main, the proposed method shows equally distributed pressure sensors in terms of hydraulics. It is expected that the proposed method can be used to manage transmission mains stably and construct a robust real-time network analysis system as a minimal criteria.

• International Journal of Internet, Broadcasting and Communication
• /
• v.10 no.3
• /
• pp.136-145
• /
• 2018

The disaster monitoring technique by combination of the measurement method and the fine precision of the sensor collecting the satellite-based information that can determine the displacement space is available in a variety of diagnostic information and the GIS/GNSS by first sensor it is being requested from them. Be large and that the facility is operated nationally distributed torsional displacement of the terrain and facilities caused by such natural disasters progress of various environmental factors and the surroundings. To diagnose this spatial information, which contains the various sensors and instruments tracks the precise fine displacement of the main construction structures and the first reference in the Geospatial or more three-dimensional detailed available map and location information using the installed or the like bridges and tunnels produced to a USN/IoT change at any time, by combining the various positioning analysis of mm-class for the facility main area observed is required to constantly in the real time information of the USN/IoT environment sensor, and to utilize this as a precise fine positioning information by UAV/Drone to the precise fine displacement of the semi-permanent infrastructures. It managed to be efficient management by use of new technologies, analyzing the results presented to a method capable of real-time monitoring for a large structure or facility to construction disaster prevention.

• International conference on construction engineering and project management
• /
• 2013.01a
• /
• pp.21-27
• /
• 2013

Construction safety is a predominant hindrance in in-situ workflow and considered an unresolved issue. Current methods used for safety optimization and prediction, with limited exceptions, are paper-based, thus error prone, as well as time and cost ineffective. In an attempt to exploit the potential of BIM for safety, the objective of the proposed methodology is to automatically predict hazardous on-site conditions related to the route that the dozers follow during the different phases of the project. For that purpose, safety routes used by construction equipment from an origin to multiple destinations are computed using video cameras and their cycle times are calculated. The cycle times and factors; including weather and light conditions, are considered to be independent and identically distributed random variables (iid); and simulated using the Arena software. The simulation clock is set to 100 to observe the minor changes occurring due to external parameters. The validation of this technology explores the capabilities of BIM combined with simulation for enhancing productivity and improving safety conditions a-priori. Preliminary results of 262 measurements indicate that the proposed methodology has the potential to predict with 87% the location of exclusion zones. Also, the cycle time is estimated with an accuracy of 89%.

• The Korean Journal of Franchise Management
• /
• v.14 no.4
• /
• pp.67-83
• /
• 2023

Purpose: The beauty market is growing rapidly and becoming more competitive as new shops enter the market and offer similar products and services. The way for industries such as beauty shops to succeed in market competition is to understand customer needs and provide a marketing mix appropriate for those needs. Research design, data, and methodology: The survey was conducted for a total of 4 days from October 4 to October 7, 2023, and a total of 2,431 copies were distributed and 463 copies were returned. Excluding 2 copies with insincere responses, 461 copies were used for analysis. The data were analyzed with SPSS 25.0 and SamrtPLS 4.0. Result: Product, price, promotion, people, and physical evidence influence perceived value, but place and process didn't. Product, process, and physical evidence influence reputation, but price, location, promotion, and people didn't. Perceived value influences revisit intention but did not reputation. Reputation influences revisit intention. Conclusions: First, beauty shops must develop beauty services that can satisfy customers' needs. Second, beauty shops must continue to invest in external facilities and interior design. Third, intangible service processes can help the beauty shop's reputation. Fourth, beauty shops need to maintain a balance between price and perceived value so that customers can be satisfied with the service experience.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.10 no.6
• /
• pp.1106-1118
• /
• 2006

The Internet has become an important instrument for providing many pieces of information to us. And server systems offer the various services after processing a volume of information, it's network topology also has been complex for providing information. Therefore this expansion means the importance of fast and sustained management of server systems. But most of server systems are located in fire-walls to allow only restricted access. Moreover, due to the difference of management based on the different operating system of each server system, management of server system is not to efficiency. That is, sever administrators have to manage by themselves many kinds of servers by using local-based or socket-based single access applications. Therefore, we design and implement a middleware system which allows to manage many kinds of severs integrally ruling XML-based Web Services which have distributed object technology such as CORBA, Java RMI and DCOM, but are free from platforms or development languages. System also provides location transparency and terminal independence and calls a server system management command to manage systems.