• Proceedings of the IEEK Conference
• /
• 2002.06e
• /
• pp.173-176
• /
• 2002

DAS(Data Acquisition System) as a ground support equipment has played a critical role in proving the status of ready-to-fire of a rocket system before launch. But it is hard to implement and place a real-time measuring system in a control room at a long distance from the vehicle. In this paper DAS is introduced by being located at the LEC(Launch Equipment Container)[1], 50 meters away from the rocket and connected to remote monitoring system via fiber optics with TCP/IP protocol by means of client/server algorithm. Therefore real-time data acquisition and storage are guaranteed and a convenient and useful MMI (Man-Machine Interface) can be developed.

• Proceedings of the KIEE Conference
• /
• 1988.07a
• /
• pp.253-256
• /
• 1988

원자력발전소의 운전현황감시 및 안전성확보를 위해 원전에 비상대응설비등을 설치 할려고 하는 상황에서 본 연구는 이런 원전설비 시스템의 입력단이 되는 DAS(Data acquisition System)를 설계, 제작하므로 원전설비에 대한 기술자립을 향상시켰다. 여기서 연구된 DAS는 현장신호를 격리 및 분리하고 analog와 digital 신호를 취득하며 Non Class-1E analog 80개, digital 신호 16개와 Class-1E analog 신호 2개, digital 신호 4개를 취급할수있도록 설계하였다. 여기서 설계된 DAS는 원전의 안전정보 system이나 기타 process의 monitoring system의 입력단으로 적용 가능한 시스템이다.

• Proceedings of the Korean Society of Medical Physics Conference
• /
• 2002.09a
• /
• pp.311-313
• /
• 2002

We are under development of a 3D PET scanner with depth of interaction (DOI) capable of high sensitivity and high resolution. In this scanner, a maximum data transfer rate of coincidence pair's event information is 10 Mcps and one event is a 64-bit data format. This maximum data transfer rate corresponds by 10 times a conventional PET scanner. A data acquisition system, which fulfills the specification of this scanner, is considered for parallel collection with banks including several coincidence units. Data transfer rate is improved by optimizing parameters of a message size, and so on.

• Journal of the military operations research society of Korea
• /
• v.31 no.2
• /
• pp.86-104
• /
• 2005

During the 'Cold War', DoD had focused on the high performance and timely acquisition which enabled quick field out the superior weapons than the enemy regardless of acquisition cost. But, after the cold war, the focus has been changed to the 'cost effective acquisition' of weapon systems because of tremendous investment cost & economic theory. The U.S. DoD has been tried to make 'the most effective acquisition system'(AR, Acquisition Reform) from mid-80's with their enough experienced program data, and as a result, they had launched the new acquisition procedure - DoD 5000 series - in 1996. DoD is continuously doing the study and making several improvements on the procedure after it had been once announced. On Oct 30. 2002, DoD noticed that they cancelled the DoD 5000 series documents(5000.1, 5000.2, 5000.2-R) and 5000.2-R will be reissued as a guide. The most recent version which focused on 1) evolutionary acquisition and spiral development, 2) procedure for future technology systems including software and IT, 3) supplement on the area of efficiency, flexibility, creativity and innovation of old system was issued by May 12. 2003. This article suggests a 'good idea' based on the reviewing of these DoD efforts for our defense acquisition regulation and procedure to go. It includes the CAIV concept application, IPT utilization, T&E method, cost or price based contract etc-all for the effective acquisition.

• The Transactions of the Korean Institute of Electrical Engineers
• /
• v.32 no.9
• /
• pp.305-314
• /
• 1983

This paper presents a general purpose data acquisition system based on the microprocessor system with M 6800. instrument and lograrithmic amplifiers and A/D converters are used to implement a signal conditioner for a various kinds of signals. The proposed system has a function such that the processor may select the one of the input signals as will and also it is proved that the system may control the control signal and digital converted signal through I/O port of PIA. Practical measurement by the proposed system shows in good results.

• Proceedings of the KIEE Conference
• /
• 2001.07a
• /
• pp.38-40
• /
• 2001

Measuring technology based on the computer and software is used worldwideiy by the aids of remarkably improved digital technology and measuring devices, and the electro- magnetic interference due to high currents and high voltages is being solved by the helps of applied optic instrumentation technology. The automatic acquisition, analysis and storage system of test data is available for utilizing the numerical computation technology. The measuring accuracy and testing efficiency are thus much higher because of the developed technologies. In this paper, the construction of data acquisition system in KERI including measuring devices and its application to the short circuit test are described, and additionally the algorithm of the analyzing program for the automatic process of test data and the results of analyses are described.

• Journal of the Korean Chemical Society
• /
• v.31 no.1
• /
• pp.71-78
• /
• 1987

A simple and inexpensive digital data acquisition system for general use in chemical laboratory was constructed. Since the system has its own 12-bit 4K memory, it can be used by itself to capture the fast signals. The system can also be used with Apple Ⅱ+ microcomputer for acquisition and processing of data.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
• /
• 2006.06a
• /
• pp.531-532
• /
• 2006

This paper presents the implementation of Real-time data acquisition system for dynamic characteristics of overhead contact wire in electric railway. The reconfigurable field-programmable gate array (FPGA) and LabVIEW graphical development tools have been used to Real-time monitoring system. The results from a field test show that the proposed technique and developed system can be practically applied to measure the assessment quantity or quantities on overhead contact lines for the online real-time process monitoring.

• International conference on construction engineering and project management
• /
• 2013.01a
• /
• pp.231-234
• /
• 2013

According to the recent development of USN technology, it has been applied in various fields of construction management. In particular, the concrete curing management using the wireless measurement system is actively being conducted. However, the existing method has limitations such as the reinstallation of temperature sensors and repositioning of repeaters. It is also not easy to acquire the measured data. Thus, this study focuses on the concrete curing management. This study proposes data acquisition method using the smartphone on construction site and tests applicability of the data measuring device and the smartphone. The test allows us to suggest the actual communication distance on construction site and to determine the correction value that is applied to the measured temperature. The data acquisition method proposed in this study is intended to enable appropriate management on construction site and will be able to be applied effectively to a variable construction site. It can also be used in all fields of construction management.

• Journal of the Korean Institute of Intelligent Systems
• /
• v.20 no.3
• /
• pp.326-331
• /
• 2010

This paper presents the design and implementation of a data acquisition system with a large number of multi-channels for manufacturing machine. The system having a throughput of 800-ch analog signals has been designed with Quartus II tool and Cyclone II FPGA. The proposed system is suitable for the large scale data handling in order to distinguish whether the operation is correct or not. The designed system is composed of a control unit, voltage divider and USB interface. To reduce the data throughput, we utilized an algorithm which can extract the same data from the achieved data. The test results of the system adapted to a manufacturing machine, show a relevant data acquisition operation of 800 channels in short time.