• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.14 no.6
• /
• pp.1447-1452
• /
• 2010

Ubiquitous society to build basic infrastructure in the power supply and power equipment safety is important. u-City in order to prevent the disaster of u-IT Power Equipment Performance Module and the security for the safety of the u-City is necessary. In this paper, the power unit of u-IT module, temperature sensor, humidity sensor, equipped with sensors arranged throughout the fire, and home distribution boards, Home Network Wall-Pad, Blocker, MPNP black boxes, arc detection, arc safety equipment, outlet of the modular performance evaluation methods and security methods will be studied. u-IT power devices and sensors to analyze the information conveyed by proactive risk and ensure safety, access control, authentication, security safeguards, such as u-IT integrated management system for electrical safety and strengthen the security, safety and security with a u-City will contribute to the construction and operation.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2009.10a
• /
• pp.457-460
• /
• 2009

u-IT Convergence appliances study and are developed in communication by development of u-IT technology, broadcasting, portal, contents, equipment and all fields of business such as solution. This treatise presents valuation basis of, economic performance, administration sex etc. by temperature, pressure, own, storehouse, gas, justice for humidity sensors and valuation basis that define u-IT Convergence, and sense information u-IT Convergence devices and terminal. Also, studied standardization standard of u-IT Convergence network appliance that follow in valuation basis for u-IT Convergence devices. Is going to contribute establish value as estimation product that equip stability and authoritativeness through correct certification assessment for technological development and appliances on Ubiquitous information-oriented society through this research and accomplish standardization.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2010.05a
• /
• pp.307-310
• /
• 2010

Ubiquitous society to build basic infrastructure in the power supply and power equipment safety is important. U-City in order to prevent the disaster of U-IT Power Equipment Performance Module and the security for the safety of the U-City is necessary. In this paper, the power unit of U-IT module, temperature sensor, humidity sensor, equipped with sensors arranged throughout the fire, and home distribution boards, Home Network Wall-Pad, Blocker, MPNP black boxes, arc detection, arc safety equipment, outlet of the modular performance evaluation and security measures will be studied. U-IT power devices and sensors to analyze the information conveyed by proactive risk and ensure safety, access control, authentication, security safeguards, such as U-IT integrated management system for electrical safety and strengthen the security, safety and security with a U-City will contribute to the construction and operation.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2011.06a
• /
• pp.159-163
• /
• 2011

U-City의 안전을 위하여 안전한 전기공급과 전기안전 점검과 전송에 필요한 전기IT 인프라는 중대한 요소이다. U-City의 건설에 필요한 전기IT기기의 설계와 개발 및 제조를 하고 Test-bed에 설치하여 성능 평가를 한 후에 검증을 맡은 전기IT기기를 U-City 설치하여야 한다. 본 논문에서는 U-City 안전을 위한 전기IT기기에 대한 절연저항, 누설전류에 따르는 고온, 연기, Co2, 불꽃, 화재 등을 감지하는 센서를 부착하고, 발생할 수 있는 재난을 사전에 예방하기 위해 전기안전보호기술, 전기설비를 상시 감시할 수 있는 기반기술, 설비를 원격으로 관리할 수 있는 제품에 대한 성능평가와 시뮬레이션을 통해 U-City에 구축되려는 종합적인 전력통합감시시스템을 연구한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2009.10a
• /
• pp.499-502
• /
• 2009

Supply of electric power and electricity safety for whole system and network are essential element. Electricity safety technology need rating for product and research about certification as product development that is done cotton flannel mixed with development of u-IT technology consists. Study on serve to develop electricity safety integration supervision system to apply product to u-City electric power appliance and cotton flannel mixed of u-IT appliance, Connection badness sensing instrument made device built-in electric power IT cotton flannel mixed in outlet that is used most in electric power appliance terminal. Using sensor on ZigBee, RFID performance estimation of communication and module for remote safety check of electricity safety integration supervision system. A performance experiment and estimation in PD, Arc detection diagnosis system and certification KS, electricity safety about product that get fitness finding.

• Journal of radiological science and technology
• /
• v.41 no.5
• /
• pp.445-450
• /
• 2018

We aim to evaluate safety of radiation by measuring leakage dose and patient(phantom) incident dose of ZEN-PX II dental portable equipment developed by G company. Measurement for leakage dose of equipment is conducted on the top, at the bottom, on the left, on the right and at the back. Dose measurement incident on the subject with the area dosimeter when using the phantom and measurement the leakage dose of equipment when using the phantom are evaluated. Comparing the right with the highest leakage dose as a 0 cm, 25 cm, 50 cm, 75 cm and 100 cm dose measurement at the measurement height of 100 cm, 64.2 uR was reduced to 47.3 uR in the senser mode 0.32sec. Even in film mode it was measured at 414.4 uR and about 27% lower at 162.6 uR. As the result of this study, when the irradiation time is 2 sec the right side dose is 290.5 uR and sensor mode is 0.32 sec the right side dose is 64.2 uR.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.13 no.11
• /
• pp.2433-2440
• /
• 2009

Whole system and network for supply of electric power and electricity safety are essential element. Electricity safety technology need rating for product and research about certification as product development that is done electric power u-IT cotton flannel mixed with development of u-IT, u-City base technology consists. Study on serve to develop electricity safety integration supervision system to apply product to u-City electric power appliance and cotton flannel mixed of u-IT appliance, Connection badness sensing instrument made device built-in electric power u-IT cotton flannel mixed in outlet that is used most in electric power appliance terminal. Using sensor on ZigBee, RFID performance estimation of communication module about function of product for remote safety check of electricity safety integration supervision system. A performance experiment and estimation in electric leakage, high voltage, Arc, fire detection diagnosis system and certification KS, electricity safety about product that get fitness finding.

• Journal of Sensor Science and Technology
• /
• v.21 no.4
• /
• pp.270-275
• /
• 2012

In this study, we have developed a mobile-based visible/NIR(Near InfraRed) imaging equipment for the animal testing. This equipment can provide visible, NIR and merged image through the viewer program. Especially, merged image help researcher to understand visual messages at animal in-vivo test. Also, it is available to send real-time images through the smart phone. Researcher can communicate with another researcher who is a long distance away. Also, the equipment was made with portable small size to enable it to commercialize.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2011.06a
• /
• pp.155-158
• /
• 2011

U-city구축에서 전기의 안전한 공급과 전기로 인한 화재 등 재난에 대한 통제가 가능해야 한다. U-city에 구축되어야 할 Smart Grid 네트워크와 Smart Grid 인프라 구축을 위해서 사용되는 전기IT기기에 대한 인증을 위한 인증설계와 인증방법에 대한 연구가 필요하다. 본 논문에서는 개발이 진행 중인 전기IT기기의 인증을 위하여 국내 국제표준화 기준을 연구한 후 국내에서 인증 받을 수 있는 인증설계를 연구한다. 인증설계는 Home Network Wall-Pad, 비접촉식 아크 검출기, 아크 안전진단, 아울렛, 저전압 배전반(MPNP) 블랙박스, 차단기이다. 그리고 인증기관에서 인증적용과 인증내용 및 평가기준과 전기IT기기의 인증심의 기관에서 기준 값 등에 관한 연구를 한다. 본 연구는 Smart Grid 네트워크와 인프라 구축을 위한 실무적인 연구 자료로 활용될 것이다.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.21 no.8
• /
• pp.593-602
• /
• 2020

Power cables installed in domestic factories or underground can cause accidents depending on the manufacturing process, installation, and environmental conditions during use. When an accident occurs in a power cable, it can cause enormous economic loss and social confusion. Hence, the importance of preventive management of the cable through diagnosis is increasing to prevent it. Therefore, in this paper, a diagnostic sample cable was produced by simulating a part that could be a problem due to the installation, manufacturing defects, or deterioration of cables that can occur in the field. Dielectric loss Tangent (tan 𝛿; TD), and Partial Discharge(PD) tests were performed. Partial discharge and AC (60Hz) withstand voltage equipment using High-Frequency Current Transformer (HFCT) were applied After applying a VLF (Very Low Frequency) power supply with a frequency of 0.1Hz was applied. As a result, B and C phase defect samples at a 2.0U₀ voltage through the VLF could measure the internal partial discharge in the A-phase normal sample cable from the noise at a 0.5U₀ to 2.0U₀ voltage. In addition, the 1.5U₀ voltage was measured through the AC (60Hz) withstand voltage equipment of the commercial frequency to verify its effectiveness. Partial discharge in the run-off state was measured at a voltage of 1.0U₀, and there was a risk when installing the equipment. AC power equipment showed a difficulty of movement by volume or weight. The diagnostic method, through the VLF of the quadrant state, revealed its safety and effectiveness.