• NEWSLETTER 전기공업
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• no.94-2 s.99
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• pp.29-44
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• 1994

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2008.06a
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• pp.663-664
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• 2008

• Water for future
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• v.44 no.12
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• pp.52-57
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• 2011

• Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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• 2003.04a
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• pp.291-294
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• 2003

• Journal of Digital Contents Society
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• v.16 no.1
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• pp.97-104
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• 2015

The conventional 1 Hall sensor-type water gauge has some defects that it can not detect counterflow and low-speed flow of water, and it also generates power consumption during even sleep mode. In this paper, a low-power consumption wireless digital remote water gauge with a counterflow detection capability is proposed. The proposed water gauge detects the direction and amount of water flow by using the three Hall sensors placed at $120^{\circ}$ intervals with 8-year national standard life durability. The water gauge with three Hall sensors works without error regardless of water speed does not generate power dissipation during sleep mode by presented reading algorithm for bew water gauge. The proposed water gauge is designed to send its ID, current time and counting value to repeater or central control center with specified frequency by RF Module.

• The Journal of the Korea institute of electronic communication sciences
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• v.18 no.1
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• pp.23-28
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• 2023

The installation rate of AMI(: Advanced Metering Infrastructure) capable of automatic electricity measurement is less than 43% nationwide and 10.5% in rural areas, which is very poor. Therefore, for the smart grid, automatic information recording of the watt-hour meter is required. For this purpose, it is necessary to develop a system capable of remote meter reading and use control by improving the existing watt-hour meter. In this paper, in order to enable the AMI function of the existing electricity meter, the remote meter reading and control technology of the existing electricity meter for AMI, the core of the smart grid, was developed using IoT and AI. The main research content was to recognize numbers using Tensorflow and Open-cv to convert it into a power meter sensing device for SG. We confirmed and checked the performance using the protyope system.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2022.10a
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• pp.546-549
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• 2022

The installation rate of AMI (advanced metering infrastructure) capable of automatic electricity measurement is less than 43% nationwide and 10.5% in rural areas, which is very poor. Therefore, for the smart grid, automatic information recording of the watt-hour meter is required. For this purpose, it is necessary to develop a system capable of remote meter reading and use control by improving the existing watt-hour meter. In this paper, in order to enable the AMI function of the existing electricity meter, the remote meter reading and control technology of the existing electricity meter for AMI, the core of the smart grid, was developed using IoT and AI. The main research content was to recognize numbers using Tensorflow and Open-cv to convert it into a power meter sensing device for SG. We confirmed and checked the performance using the protyope system.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2003.05a
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• pp.443-446
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• 2003

This paper implement Remote Meter Reading System which is used Bluetooth and SMS in CDMA. This System propose system which tan detect a total amount of gas, electricity or water without a meterman, at home BlueTooth is a close range wireless communication technology which uses a wireless frequency 2.4GHz and has a high trust and self error correction technology according to a low power consumption quality and a high-speed frequency hopping. This makes get a high trust concerning a data transmission than an existing modem. In addition, though wireless modem is restricted by a minimal of a wireless terminal, it will be possible to coincide with the function of the portable with the low power consumption quality by using Bluetooth. And as the system on a chip of module progresses, the possibility of the small size is present. Nowadays, SMS Protocol in CDMA for have a network function based on PPP in CDMA Phone. The proposed Remote Meter Reading System to get more nobility, efficiency, and have good function. SMS Protocol in CDMA have profits which is low power, low cost, and low microwave output.

• Proceedings of the KIPE Conference
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• 2009.11a
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• pp.259-261
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• 2009

에너지 자원의 고갈과 환경 문제들이 화두가 되면서 전 세계적으로 에너지의 효율적인 활용을 위해 관심이 집중되고 있다. 이러한 상황에서 에너지 자원을 전적으로 수입에 의존하고 있는 우리나라는 전력의 수급안정 및 소비 절약을 위해 수요관리가 무엇보다 중요한 실정이다. 이미 수요관리의 중요성을 인지하고 여러 방법을 통하여 전력수요를 관리해 오고 있으나 아직까지는 많은 문제가 따르는 상황이다. 수요관리의 한 방법으로 하계기간에 전력소모량의 가장 큰 비중을 차지하는 에어컨의 피크시간대 제어를 통하여 수요를 조절하는 방법이 있다. 기존에 운영되던 원격에어컨 제어 방식은 제어가 단 방향 통신이라는 점과 별도의 통-신비용이 부담되는 등 문제점을 가지고 있다. 본 논문에서는 PLC 통합검침 인프라를 통한 양방향 원격에어컨 제어 시스템을 구현하여 전력수요의 효율적인 관리의 방법에 대해 제안하고자 한다.

• Proceedings of the KIEE Conference
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• 2002.07a
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• pp.244-246
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• 2002

전력시스템에서 설치 운영되는 설비나 장치들을 감시, 제어하는 시스템은 산업 현장이나 기관에서 개발 운영하고 있다. 배전계통에서도 마찬가지로 여러 설비와 장치들 즉, 배전선로에 설치된 개폐기나 리클로져 등을 감시, 제어하는 배전자동화시스템, 배전반등을 감시하는 전력감시 제어시스템, 발전소나 대규모 수용가에서 사용하는 전력량이나 계량정보등을 검침하는 원격검침시스템 등이 있다. 이러한 시스템에서 배전자동화시스템과 현재 나날이 발전해가는 인터넷을 접속하여 원격지에서의 보다 효율적이고 간편하게 배전계통의 운영을 수행하고, 나아가 그 기반 시스템의 데이터베이스를 관리하여 차후의 계통운용에 기초자료로 사용하며 송 배전 시스템의 전체 구성 및 향후 계획에 기초 자료로 사용할 수 있다.