• Title/Summary/Keyword: Real-Time monitoring

Search Result 3,599, Processing Time 0.029 seconds

A real-time multiple vehicle tracking method for traffic congestion identification

  • Zhang, Xiaoyu;Hu, Shiqiang;Zhang, Huanlong;Hu, Xing
    • KSII Transactions on Internet and Information Systems (TIIS)
    • /
    • v.10 no.6
    • /
    • pp.2483-2503
    • /
    • 2016
  • Traffic congestion is a severe problem in many modern cities around the world. Real-time and accurate traffic congestion identification can provide the advanced traffic management systems with a reliable basis to take measurements. The most used data sources for traffic congestion are loop detector, GPS data, and video surveillance. Video based traffic monitoring systems have gained much attention due to their enormous advantages, such as low cost, flexibility to redesign the system and providing a rich information source for human understanding. In general, most existing video based systems for monitoring road traffic rely on stationary cameras and multiple vehicle tracking method. However, most commonly used multiple vehicle tracking methods are lack of effective track initiation schemes. Based on the motion of the vehicle usually obeys constant velocity model, a novel vehicle recognition method is proposed. The state of recognized vehicle is sent to the GM-PHD filter as birth target. In this way, we relieve the insensitive of GM-PHD filter for new entering vehicle. Combining with the advanced vehicle detection and data association techniques, this multiple vehicle tracking method is used to identify traffic congestion. It can be implemented in real-time with high accuracy and robustness. The advantages of our proposed method are validated on four real traffic data.

Determination of an Underground Seawater Flow Using a TEM Decay Curve (TEM감쇠곡선을 이용한 해수의 지하 유동현상 파악)

  • 황학수;문창규;이상규;이태섭
    • Economic and Environmental Geology
    • /
    • v.34 no.5
    • /
    • pp.499-506
    • /
    • 2001
  • The geophysical monitoring technique using the high resolution time-domain electromagnetic (TEM) method with a coincident loop away was applied for determination of an underground seawater flow in the coastal areas. In comparison of the TEM monitoring to direct current (DC) resistivity monitoring, the TEM response to the under ground seawater flow is less sensitive than the DC resistivity response. However, the TEM monitoring is more effective in terms of measuring time, survey expense, and real-time data processing than the DC monitoring thor evaluating the spatial distribution of the fresh water-seawater transition zone in a regional area.

  • PDF

Development of the Remote Minitoring System of Coastal Ocean Environment based on WWW and PCS (WWW와 PCS를 이용한 원격해양관리 시스템의 구축)

  • 이지홍;노영재;하인수;김인식
    • Proceedings of the IEEK Conference
    • /
    • 2000.06e
    • /
    • pp.167-170
    • /
    • 2000
  • In this paper, we develope a intelligent monitoring system of Coastal Ocean Environment based on WWW(World Wide Web) and PCS(Personal Communication System). This system have capability of real time processing of enviromental variable from various sensors. The system is composed of three part. The first part is mathematical modeling of real ocean. The second is construction server for real time web page. And the third is developing the measurement system which has wireless(PCS) interface to server.

  • PDF

MAGNETIC RESONANCE IMAGING AND HISTOPATHOLOGIC CORRELATIONS OF FOCAL LESIONS INDUCED BY LASER (레이저 조사후 자기공명영상과 조직학적 소견의 상호일치도)

  • 이정구;정필상;정필섭;조정석;김상준
    • Korean Journal of Bronchoesophagology
    • /
    • v.2 no.2
    • /
    • pp.194-199
    • /
    • 1996
  • Laser therapy is becoming an accepted procedure for tissue coagulation and ablation and is especially useful in treating tumors. The laser energy is applied to the tissue of interest through various delivery systems which are introduced percutaneously, via blood vessels, through body openings, or during surgical exposure of the tissue. One of the major obstacles to effective application of lasers has been the lack of reliable method to determine the extent of tissue involvement in real time. Several methods have been proposed for monitoring the tissue response and controlling the laser in real time during laser therapy. Among them, magnetic resonance imaging(MRI) has been introduced to monitor laser-tissue interactions because laser irradiation induces changes not only in the thermal motions of the hydrogen protons within the tissue but also in the distribution and mobility of water and lipids. The buttocks of New Zealand rabbits were treated by KTP and $CO_2$laser(power : 10 watts, exposure time:10 seconds). m images were taken at immediately after lasering, 1 week later, 2 weeks later, and at the same time, tissues were harvested for histopathologic study. We analyzed MR images and histopathologic findigs of laser-treated tissues. The MR images taken immediately after laser treatment showed 3 layer pattern and which was correlated with histopathologic changes. We suggest MRI may become a useful monitoring tools for laser-tissue interaction.

  • PDF

An Intelligent Monitoring System of Semiconductor Processing Equipment using Multiple Time-Series Pattern Recognition (다중 시계열 패턴인식을 이용한 반도체 생산장치의 지능형 감시시스템)

  • Lee, Joong-Jae;Kwon, O-Bum;Kim, Gye-Young
    • The KIPS Transactions:PartD
    • /
    • v.11D no.3
    • /
    • pp.709-716
    • /
    • 2004
  • This paper describes an intelligent real-time monitoring system of a semiconductor processing equipment, which determines normal or not for a wafer in processing, using multiple time-series pattern recognition. The proposed system consists of three phases, initialization, learning and real-time prediction. The initialization phase sets the weights and tile effective steps for all parameters of a monitoring equipment. The learning phase clusters time series patterns, which are producted and fathered for processing wafers by the equipment, using LBG algorithm. Each pattern has an ACI which is measured by a tester at the end of a process The real-time prediction phase corresponds a time series entered by real-time with the clustered patterns using Dynamic Time Warping, and finds the best matched pattern. Then it calculates a predicted ACI from a combination of the ACI, the difference and the weights. Finally it determines Spec in or out for the wafer. The proposed system is tested on the data acquired from etching device. The results show that the error between the estimated ACI and the actual measurement ACI is remarkably reduced according to the number of learning increases.

Real-Time Glutamate Release in Rat Striatum of 11-Vessel-Occlusion Ischemia Model Treated with Acupuncture (11개 혈관 차단법을 통한 중증 뇌경색 모델에서 뇌손상 측정과 침치료 효과 실시간 분석)

  • Yin, Chang-Shik;Choi, Seok-Keun;Lee, Gi-Ja;Eo, Yun-Hye;Kim, Bum-Shik;Oh, Berm-Seok;Lim, Ji-Eun;Lee, Hye-Jung;Park, Hun-Kuk
    • Journal of Physiology & Pathology in Korean Medicine
    • /
    • v.22 no.4
    • /
    • pp.835-840
    • /
    • 2008
  • Acupuncture has long been contended to be effective in an ischemic stroke. A real-time monitoring of glutamate, an excitotoxin in the process of ischemic neuronal damage, in the striatum is tried in a rat model of global ischemia. Global ischemia was induced by the 11 vessel occlusion method for 10 minutes, during which acupuncture stimulation on GB34 and GB39 points was executed. Glutamate release in the rat striatum was monitored 256 times per second using real-time amperometric biosensor. Real time measurement data of 10 minutes prior to the induction of ischemia served as baseline data. Data acquisition continued for 30 minutes after the initiation of reperfusion. Peak concentration of glutamate release along with incidentally measured EEG and cerebral blood flow was compared between cases with and without acupuncture stimulation. Peak concentration of glutamate lowered when acupuncture stimulation was executed. A real time monitoring system of 11 vessel-occlusion induced global ischemia model was successfully established. The effect by acupuncture on acute global ischemia was successfully observed in this real-time monitoring setting, which may be one of the neuroprotective mechanism of acupuncture.

Construction of real-time remote ship monitoring system using Ka-band payload of COMS (천리안 위성통신을 이용한 실시간 원격 선박 모니터링 체계 구축)

  • Jeong, Jaehoon;Kim, Tae-Ho;Yang, Chan-Su
    • Korean Journal of Remote Sensing
    • /
    • v.32 no.3
    • /
    • pp.323-330
    • /
    • 2016
  • Communication, Ocean and Meteorological Satellite (COMS) was launched in 2010 with three payloads that include Ka-band communication payload developed by Ministry of Science, ICT and Future Planning (MSIP) and Electronics and Telecommunications Research Institute (ETRI). This study introduces a real-time remote vessel monitoring system built in the Socheongcho Ocean Research Station using the Ka-band communication satellite. The system is composed of three steps; real-time data collection, transmission, and processing/visualization. We describe hardware (H/W) and software systems (S/W) installed to perform each step and the whole procedure that made the raw data become vessel information for a real-time ocean surveillance. In addition, we address functional requirements of H/W and S/W and the important considerations for successful operation of the system. The system is now successfully providing, in near real-time, ship information over a VHF range using AIS data collected in the station. The system is expected to support a rapid and effective surveillance over a huge oceanic area. We hope that the concept of the system can be fully used for real-time maritime surveillance using communication satellite in future.

The development of fault monitoring system for lift type parking facility (승강기식 타워주차설비 고장 모니터링 시스템 개발)

  • Lee, W.T.;Cha, J.S.;Jeong, Y.K.;Kim, K.H.;Kim, B.U.
    • Proceedings of the KIEE Conference
    • /
    • 1999.11c
    • /
    • pp.739-741
    • /
    • 1999
  • This paper describes the fault monitoring system for lift type tower parking facilities. This system consists of tower parking facility control panel and monitoring computer, and offers real-time monitoring of parking status and fault detection, and status data acquisition of tower parking system using graphic user interface.

  • PDF

The Architecture of the Vision-based Monitoring system for Urban Transit Visual (영상기반 도시철도 모니터링 시스템 구축방안 연구)

  • An, Tae-Ki
    • Proceedings of the KIEE Conference
    • /
    • 2007.10c
    • /
    • pp.229-231
    • /
    • 2007
  • The CCTV, closed circuit television, system is the most popular method to monitor some specific area. The CCTV-based monitoring system is composed of a lot of cameras installed the areas, and monitors to display the vision through the cameras. However, these systems have limitations to prevent some problems or to cope with the problems promptly, because they can carry out only the function that shows us the analogue images of the cameras. Especially, urban transit service area is the space where many people crowd in all at the same time and the space is not only wide but also distributed sporadically. This paper presents the efficient plan for video-based monitoring system to monitor urban transit service area. To build the efficient monitoring system, it is necessary to devide the monitoring area to appropriate sectors that should be composed to be displayed at a time. If the proposed method is used to construct the video-based monitoring system, the operating officers in the urban transit have the more direct and real images.

  • PDF

A Stability Case on the Deep Rock Excavation Site in Urban Area by Automatic Monitoring System (도심지 대심도 암반굴착공사에서의 자동계측 활용에 의한 붕괴방지 사례)

  • Kim, Tae-Seob;Jo, Nam-Shin;Jung, Chang-Won
    • Proceedings of the Korean Geotechical Society Conference
    • /
    • 2010.03a
    • /
    • pp.1433-1437
    • /
    • 2010
  • The deep excavation work in Korean downtown is almost excuted near by existing structures and utility lines because of the diminution of available yard for construction. So, it was required more and more that the accurate control of displacement on the earth retaining system for minimizing the popular complaint and the damage from constructional accident. Automatic monitoring system is adopted in fracture zone for real time monitoring. In addition, Face mapping is carried out on the face of fracture zone according to excavation sequence. As the result of automatic monitoring system and face mapping, we was able to take the necessary reinforcement and changing excavation method within suitable time. This paper is informed about a stability case on the deep rock excavation site with fracture zone in urban area by automatic monitoring system.

  • PDF