• Title, Summary, Keyword: monitoring

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Development of $\mu$-processor based Monitoring system ($\mu$-processor를 이용한 중소기업형 공장 감시 시스템 개발)

  • 김선오;최동엽;김문경;김두형
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • pp.738-742
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    • 1996
  • This paper presents the automatic monitoring system for the small and medium sized manufacturing system. The monitoring system was composed of main controller, network card and monitoring sub controller for the unit machine. PC was used for the main controller and monitoring controller, which has the same hardware with the network card, was developed using Intel 80196 microprocessor.

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Performance Analysis of Monitoring Process using the Stochastic Model (추계적 모형을 이용한 모니터링 과정의 성능 분석)

  • 김제숭
    • Journal of the Society of Korea Industrial and Systems Engineering
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    • v.17 no.32
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    • pp.145-154
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    • 1994
  • In this paper, monitoring processor in a circuit switched network is considered. Monitoring processor monitors communication links, and offers a grade of service in each link to controller. Such an information is useful for an effective maintenance of system. Two links with nonsymmetric system Parameters are considered. each link is assumed independent M/M/1/1 type. The Markov process is introduced to compute busy and idle portions of monitoring processor and monitored rate of each link. Inter-idle times and inter-monitoring times of monitoring processor between two links are respectively computed. A recursive formula is introduced to make computational procedure rigorous.

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Development of the Integrated Monitoring System for Panel boards (분전반 통합 감시 시스템 개발)

  • Kim, Il-Kwon;Cho, Hyun-Kyung;Lee, Dong-Zoon
    • Proceedings of the KIEE Conference
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    • pp.347_348
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    • 2009
  • In this paper, we described the integrated monitoring system for low-voltage panel boards. This system consists of three parts, a panel board controller, an integrated monitoring unit and a remote PC. The panel board controller which was made of CT/PT unit, control unit and power supply is able to transmit variable parameter for monitoring and diagnosis of low voltage branch circuits. Also, the integrated monitoring unit was collected monitoring data from panel boards and displayed on the touch panel.

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Long term health monitoring of post-tensioning box girder bridges

  • Wang, Ming L.
    • Smart Structures and Systems
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    • v.4 no.6
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    • pp.711-726
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    • 2008
  • A number of efforts had been sought to instrument bridges for the purpose of structural monitoring and assessment. The outcome of these efforts, as gauged by advances in the understanding of the definition of structural damage and their role in sensor selection as well as in the design of cost and data-effective monitoring systems, has itself been difficult to assess. The authors' experience with the design, calibration, and operation of a monitoring system for the Kishwaukee Bridge in Illinois has provided several lessons that bear upon these concerns. The systems have performed well in providing a continuous, low-cost monitoring platform for bridge engineers with immediate relevant information.

The Effects of Maternal Monitoring and Information Sources of Maternal Knowledge on Externalizing and Internalizing Behaviors of Adolescents (어머니의 감독(monitoring) 및 감독방법이 청소년의 외현화.내면화 행동에 미치는 영향)

  • 박진경;도현심
    • Journal of the Korean Home Economics Association
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    • v.39 no.12
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    • pp.129-140
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    • 2001
  • The effects of material monitoring and information sources of maternal knowledge on externalizing and internalizing behaviors of adolescents were examined with a sample of 323 ninth-grade middle school students(163 boys and 160 girls) and their mothers. Data were collected using questionnaires regarding maternal monitoring, information sources of maternal knowledge, and externalizing and internalizing behaviors of adolescents. The major findings were that 1) unemployed mothers showed more monitoring than employed mothers; 2) mothers perceived that girls showed more self-disclosure and were more controlled by them than boys; 3) girls showed more internalizing behavior than boys; 4) the more adolescents were monitored by their mothers, the less internalizing behavior they showed; 5) the more maternal solicitation was used, the more externalizing behavior girls showed; 6) adolescents showed the least externalizing behavior when maternal monitoring was highly perceived by both mothers and adolescents. And perception of maternal monitoring by adolescents themselves plays an important role in showing less externalizing behavior.

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국가지하수 관측소의 장기수위관측자료를 활용한 관측주기 결정 연구

  • 김규범;김정우;원종호;이명재;이진용;이강근
    • Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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    • pp.199-201
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    • 2003
  • The monitoring effectiveness not only depends on the effectiveness of the network, but also the costs of the network. Generally the costs of the monitoring network are mainly on the equipment and personnel; the implementation and maintenance; the observation and sample connection; the sample analysis; and the data storage and processing. The cost of the monitoring network can be expressed as a function of monitoring frequency because the monitoring method can be an automatic or a manual measurement. To determine the sampling frequency of subsidiary groundwater monitoring stations, time series data of national groundwater monitoring stations were used. The proposed optimal sampling frequency for subsidiary groundwater monitoring station is about 7 to 20 days and the average frequency is about 2 weeks.

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Influences of Myo-monitoring on Masticatory Muscles (Myo-Monitoring이 저항근에 미치는 영향)

  • Kwang-Woo Lee;Woo-Cheon Kee;Sung-Su Jung
    • Journal of Oral Medicine and Pain
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    • v.14 no.1
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    • pp.89-103
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    • 1989
  • In order to evaluate the influences of Myo-monitoring on masticatory muscles, Myo-monitoring on 31 normal persons and 30 persons with one more temporomandibular dysfunction symptoms during 45 minutes or above. The author observed velocities of mandibular opening and closing movement, variabilities of mandibular rest position and EMG activities of temporal and masseter muscles. The obtained results were as follows : 1. There were no significant differences on velocities of mandibular opening and closing movement between before and after Myo-monitoring. 2. There were significant differences on vertical dimension and total dimension form mandibular rest position to centric occlusion between before and after Myo-monitoring but no significant differences on anteroposterior and lateral dimension. 3. Activities of temporal and masseter muscles were decreased in Myo-Monitoring. 4. There were disappeared significant differences on EMG activity values between normal and symptom groups after myo-monitoring.

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IFC-based Interperable information modeling of tunnel monitoring (상호운용성 확보를 위한 IFC 기반의 터널 계측 정보 모델링)

  • An, Hyun-Jung;Yi, Jin-Hoon;Kim, Hyo-Jin;Lee, Sang-Ho
    • 한국방재학회:학술대회논문집
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    • pp.613-616
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    • 2008
  • This study presents an IFC-based information model for standardized and integrated information management system of tunnel monitoring. Information items of tunnel monitoring were extracted from the Tunnel Design Standard of Ministry of Construction and Transportation. Then, the information items were compared with components of IFC 2x Edition3 model. Two main entities are added into the IFC model for generic representing of monitoring devices and data. IfcMonitoringElement which is composed of IfcMonitoringLogger and IfcMonitorinSensor is proposed to represent physical information of data loggers and sensors, and relationship between data logger and sensors. Besides, as an additional resource of IFC model, IfcMonitoringData is provided to express measured data from sensors and warning histories.

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On-Line Diagnostics and Monitoring of Distribution Panel Using IR-Sensor (광온도센서를 이용한 분전반의 온라인 진단 및 감시)

  • Yun, Ju-Ho;Choi, Yong-Sung;Hwang, Jong-Sun;Lee, Kyung-Sup
    • Proceedings of the KIEE Conference
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    • pp.2110-2111
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    • 2008
  • Continuous on-line temperature monitoring allows corrective measures to be taken to prevent upcoming failure. Continuous temperature monitoring and event recording provides information on the energized equipment's response to normal and emergency conditions. On-line temperature monitoring helps to coordinate equipment specifications and ratings, determine the real limits of the monitored equipment and optimize facility operations. Using wireless technique eliminates any need for special cables and wires with lower installation costs if compared to other types of online condition monitoring equipment. In addition, wireless temperature monitoring works well under difficult conditions in strategically important locations. Wireless technology for on-line condition monitoring of energized equipment is applicable both as standalone system and with an interface with power quality monitoring system.

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A Technical Trend on On-Line Condition Monitoring and Diagnostics of Power Equipments (배전설비의 온라인 모니터링과 진단 기술 동향)

  • Lim, Wan-Soo;Lee, Tae-Woo;Yeo, Woon-Cheol;Lee, Sung-Gil;Choi, Yong-Sung;Lee, Kyung-Sup
    • Proceedings of the KIEE Conference
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    • pp.1974-1975
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    • 2007
  • Continuous temperature monitoring and event recording provides information on the energized equipment's response to normal and emergency conditions. On-line temperature monitoring helps to coordinate equipment specifications and ratings, determine the real limits of the monitored equipment and optimize facility operations. Using wireless technique eliminates any need for special cables and wires with lower installation costs if compared to other types of online condition monitoring equipment. In addition, wireless temperature monitoring works well under difficult conditions in strategically important locations. Wireless technology for on-line condition monitoring of energized equipment is applicable both as standalone system and with an interface with power quality monitoring system. The paper presents the results of wireless temperature monitoring of switchgear at a power plant over a two-year period.

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