• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2001년도 ICCAS
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• pp.57.4-57
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• 2001

Polishing a die that has free-form surfaces is a time-consuming and tedious job, and requires a considerable amount of high-precision skill. Some workers tend to gradually avoid the polishing work because of the poor working conditions caused by dust and noise. In the our previous study, an automatic polishing system was developed to reduce the polishing time and cope with the shortage of skilled workers. And, to operate the polishing robot system from remote sites, communication network was constructed and monitoring programs (a server program and a client program)) were developed. However, to monitor polishing process in remote sites, users have to install monitoring programs in a client PC. Thus, user can only operate the polishibg system ...

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2001년도 ICCAS
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• pp.180.5-180
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• 2001

This paper presents A Design of WMR Controller that being composed of cooperative relation between PID controller and optimized neural network algorithm, it operate a variable control by velocity. Some proposed algorithm in the past just depended on PID controller for the control of position of WMR but for more efficient control we design a variable controller that operate control by PD controller using neural network if it is satisfied with any given condition. it adjust gain of PD controller for real time control using a fast feedforward algorithm which is different with Form of the standard backpropagation algorithm.

• 전자공학회논문지A
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• 제33A권5호
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• pp.155-164
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• 1996

The architecture of a programmable video codec IC is described that employs multiple vector processors in a single chip. The vector processors operate in parallel and communicate with one another through on-chip shared memories. A single scalar control processor schedules each vector processor independently to achieve real-tiem video coding with special vector instructions. With programmable interconnection buses, the proposed architecture performs multi-processing of tasks and data in video coding. Therefore, it can provide good parallelism as well as good programmability. especially, it can operate multithread video coding, which processes several independent image sequences simultaneously. We explain its scheduling, multithred video coding, and vector processor architectures. We implemented a prototype video codec with a 0.8um CMOS cell-based technology for the multi-standard videophone. This codec can execute video encoding and decoding simultaneously for the QCIF image at a frame rate of 30Hz.

• 한국기계가공학회지
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• 제11권3호
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• pp.187-192
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• 2012

Recently, the electric device has been launching owing to the development of industry. That development also can maximize the efficiency of generator. The emergency rescue vehicle operation differs from ordinary vehicles in engine life and usage distances. For the application of this system, this research proposes the ways to operate the emergency rescue vehicle operations more efficiently. Currently, many power systems, especially motors, developed with a large output of power. It is possible to produce electricity in the engine room with enough space and to operate all equipment within the rating load capacity.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2001년도 추계학술대회논문집B
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• pp.77-82
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• 2001

Thermal design for KOMPSAT-2 propulsion system has been performed. Overall design requirements and the constitution for propulsion system is described. To meet the thermal design requirements, both a primary and a redundant heater circuit, each with two thermostats placed in series, will protect each hydrazine-wetted components, even if one heater circuit fails to operate. Heater power is turned off if any one of these thermostats is opened at its higher setpoint. Thus, even if one thermostat is failed closed, the second thermostat will turn off the heater. All such components shall be insulated with MLI. Propulsion heater sizing based on the constant worst cold case condition is conducted through thermal analysis. All heaters selected for propulsion components operate to prevent propellant freezing satisfying the thermal requirements for the propulsion subsystem over the worst case average voltage, i.e. 25 volts.

• 한국산업정보학회:학술대회논문집
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• 한국산업정보학회 1999년도 춘계학술대회 발표논문집
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• pp.30-35
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• 1999

Recently, many companies want to accept and operate ERP(Enterprise Resource Planning) system in their fields ERP does not only include business, but also include finance, account, trade, personnel and BPR(Business Process Reengineering). Especially, it is necessary to have ERP system for companies which have lots of external businesses such as trade and communication sector. In modern society, the manufacture field faces on variable chances of Environment. For this situation, the application of Information technique is one of the main point maintain competitive power. The company should chose a proper method for their future and build Unified Information System on its suitable situation. Nowadays, Adjustment and application of technical method for Internet/Intranet and raised and more advanced Extranet gains its force at the moment. The Unification of ERP and POP system under the distributed environment like this will have a huge influence to us. In this subject, I will think about POP system for operating EPR system and improve its defects that can operate more effective sales, circulation, demand plan. Also, I suggest a proper POP system can handle seperated resources in each part of factory for a plan of shot period, order operating, factory inventory, process control.

• 대한임베디드공학회논문지
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• 제2권4호
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• pp.260-273
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• 2007

The wireless sensor network (WSN) nodes are required to operate for several months with the limited system resource such as memory and power. The hardware platform of WSN has 128Kbyte program memory and 8Kbytes data memory. Also, WSN node is required to operate for several months with the two AA size batteries. The MAC, Network protocol, and small application must be operated in this WSN platform. We look around the problem of memory and power for WSN requirements. Then, we propose a new computing model of system software for WSN node. It is the Atomic Object Model (AOM) with Dual Priority Scheduling. For the verification of model, we design and implement IEEE 802.15.4 MAC protocol with the proposed model.

• ETRI Journal
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• 제6권2호
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• pp.15-17
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• 1984

A long-wavelength ($1. 3\mum$) multimode fiber-optic transmission system has been developed and the field trial system has been installed over 17.3km distance in Daejeon Area by KETRI. The 45Mb/s and 90Mb/s system operate with BER $10^-9$over 17.3km distance, and they successfully operate on the route of 34. 6km length when the fiber cable is simply connected at one end. Average loss of the fiber cable shows 0. 81dB/km including splice loss and the average bandwidth over the 17. 3km distance is 170MHz.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 춘계학술대회 논문집
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• pp.1233-1238
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• 2007

In recently, our social is entering to service infinite competitive time., So If companys don't give satifactory and an impression customers, they don't exist. The Companies that operate railway are promoted(Seoul metro). The Korail, Seol metropolitan Rapid Transit Corperation, Incheon Rapid Transit Corporation), they are into a stronger competitor. So the service for customer is more inportant to improve the image and administration than before. Especially, station workers who work near the customer are important for cooperation image. But, there are only a few employees to operate the station like ticketing in railway station, There aren't reinforcement the service employees and expanse the utility system. especially, since the transportation card is introduced in 1996, the customers who use the T-Money card are increased. So the change of service system is necessary to provide a substantial service to customer. This paper derives the problems through analysising the operating system of station, and presents the improvement to provide substantial services to customer

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 1992년도 춘계학술대회 논문집
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• pp.297-300
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• 1992

For the most part of machine design, assembly drawing isaffected byits inserted parts. When a part is inserted in assembly, alreadyd stablished parting line is modified for reasonable representation. for example, break or trim fuction between the lines gives more recognizable drqwing. Most of parts is composed of such that point, line, arc, circle and block. If the part is composed of block, it is very difficult to operate because its attribution is unknown before exploding, but, It is very easy to operate except block. In this paper, it is required that basic feature recognition rules are caused by knowledge-based. This system which shows a good modify tool using AutoCAD system and ADS (Autocad Development System).