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Object detection and modeling algorithm for automatic visual people counting system

Object detection and modeling algorithm for automatic visual...

International Conference on Electrical engineering/Electronics, Computer, Telecommunications and Information Technology, ECTI-CON

作者： Kulrapat Jaijing Pakorn Kaewtrakulpong Supakorn Siddhichai Department of Computer Engineering Department of Instrumentation and Control System Engineering Faculty of Engineering King Mongkut's University of Technology Thonburi Bangkok Thailand National Electronics and Computer Technology Center Pathum Thani Thailand

This paper presents object detection and modeling algorithm for automatic visual people counting system to identify individuals from top view images acquired from an overhead surveillance camera. This work proposes Snake algorithm with effective external energy function and a half-circle template initialization for modeling passengers. The experiment result showed that the proposed method could fit the Snake to the head and shoulder boundaries of the passengers effectively. Fitting error of 3.76 pixels per control point was obtained in our experiment. The information is not only useful for verifying humans but also for extracting appearance features to enhance performance of the subsequent tracking algorithm.

关键词： Object detection Cameras Head Humans Data mining Surveillance Feature extraction Image segmentation Counting circuits Computer errors

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Intelligent model of continuous improvement mechanisms scope of QMS

Intelligent model of continuous improvement mechanisms scope...

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IEEE International Conference on systems, Man and Cybernetics

作者： Sofiene Hermi Taieb Ben Romdhane Raouf Ketata Department of Physics and Instrumentation Engineering National Institute of Applied Science and Technology Tunis Tunisia Research Unit on Intelligent Control Design and Optimization of Complex System (ICOS) National Engineering School of Sfax Sfax Tunisia

This work proposes a new methodology to evaluate and improve the QMS (Quality Management system) effectiveness and efficiency to succeed for a factual approach including all monitoring parameters. This idea is justified by the difficulties incurred by the organizations to establish a continuous improvement's system based on the objectives and the process approach. In addition, the guidelines defined by the FDX 50-174 part published by AFNOR to assess the QMS effectiveness, still guides defining the assessment criteria and progress levels. Indeed, to facilitate the continuous improvement system's integration, we propose a new methodology based on a broad range of monitoring tools (functional and operational indicators, audits, quality control, customer satisfaction) and including the requirements of the process and the system approach.

关键词： Continuous improvement Design engineering Quality management Condition monitoring Customer satisfaction ISO standards Physics Instruments Management training Cybernetics

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Road traffic estimation with signal matching in mobile phone using large-size database

Road traffic estimation with signal matching in mobile phone...

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International Conference on Intelligent Transportation

作者： Sunisa Promnoi Poj Tangamchit Wasan Pattara-Atikom Department of Control System and Instrumentation Engineering King Mongkut's University of Technology Thonburi Bangkok Thailand National Electronics and Computer Technology Center Klong Luang Pathum Thani Thailand

This paper presents a road traffic estimation method using a GSM mobile phone as a probe. The technique relies on localization by signal strength matching. Our emphasis is on the unusual-large size of the database. We built a module that automatically collects location-signal with one second refresh rate and carried it along a test route to collect database. To handle big database, we additionally present a noise reduction algorithm, which eliminates bad data and compacts the database. For the localization algorithm, the fast nearest neighbor strategy is applied in the database matching to reduce computation time. The position estimations which formerly implemented noise reduction are compared with the ordinary results. Furthermore, we compared the computation time of the fast nearest neighbor algorithm to the normal method. The results show that the mobile phone positioning based on signal strength pattern matching can locate its location down to 63 meter accuracy.

关键词： Mobile handsets Databases Neurons GSM Global Positioning system Nearest neighbor searches Intelligent transportation systems Signal processing Roads Cellular phones

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Remote wireless low cost RT process control using Windows PLC by MATLAB/Simulink throw the REX control system

Remote wireless low cost RT process control using Windows PL...

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IEEE GCC Conference & Exhibition

作者： Ondrej Krejcar Petr Konarik Faculty of Electrical Engineering and Computer Science Department of Measurement and Control Centre of Applied Cybernetics VSB-Technical University of Ostrava Ostrava Poruba Czech Republic Faculty of Mechanical Engineering Department of Control System and Instrumentation VSB-Technical University of Ostrava Ostrava Poruba Czech Republic

Paper shows direct connection and implementation way of designed control schémas of prepared applications to an industrial WinPLC. Paper deals with industrial realization of feedback control of demanding applications on their control, control algorithms and visualization together with design, implementation and real time control from MATLAB/Simulink Environment. Described is a way to produce a permanent solution in control applications that are fully prepared, designed and implemented directly from MATLAB/Simulink to the target control platform. As a part, the mentioned solution is using a multiplatform control system REX as a bridge between MATLAB and target platforms. These methods allow minimizing costs of development of control of applications, because it produces target permanent realizations in comparison to classical development methods that usually need expensive real time measurement cards and produce only one purpose development solution. As next benefit the application is created for visualization the data from RT database during the measurement and control process. This last benefit produce an interesting data from real control process to give a next reason to use of WinCon solution.

关键词： MATLAB Libraries control systems Process control Real time systems Algorithm design and analysis Servers

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Low Cost RT Process control Using Windows PLC by MATLAB/Simulink Throw the REX control system by Secured Wireless Network

Low Cost RT Process Control Using Windows PLC by MATLAB/Simu...

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ICONS International Conference on systems

作者： Ondrej Krejcar Petr Konarik Department of Measurement and Control Centre for Applied Cybernetics Faculty of Electrical Engineering and Computer Science Ostrava-Poruba Department of Measurement and Control Centre for Applied Cybernetics Faculty of Electrical Engineering and Computer Science Ostrava-Poruba Czech Republic Department of Control System and Instrumentation VSB-Technical University of Ostrava Faculty of Mechanical Engineering Ostrava-Poruba Czech Republic

Paper deals with industrial realization of feedback control of demanding applications on theirs control, control algorithms and visualization together with real time control from MATLAB/Simulink Environment. Paper shows direct connection and implementation way of designed control schemas of prepared applications to an industrial WinPLC. Described is a way to produce a permanent solution in control applications that are fully prepared, designed and implemented directly from MATLAB/Simulink to the target control platform. As a part, the mentioned solution is using a multiplatform control system REX as a bridge between MATLAB and target platforms. These methods allow minimizing costs of development of control of applications, because it produces target permanent realizations in comparison to classical development methods that usually need expensive real time measurement cards and produce only one purpose development solution.

关键词： Costs Process control Programmable control MATLAB control systems Wireless networks Electrical equipment industry Industrial control Pulp and paper industry Feedback control

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WinPLC control from MATLAB/Simulink Environment throw the Multiplatform control system REX by Secured Wireless Network

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IFAC Proceedings Volumes 2009年第1期42卷 13-16页

作者： Ondrej Krejcar Petr Konarik Tutsch Michal VSB-Technical University of Ostrava Faculty of Electrical Engineering and Computer Science Department of Measurement and Control Centre for Applied Cybernetics 17. listopadu 15 708 33 Ostrava- Poruba VSB-Technical University of Ostrava Faculty of Mechanical Engineering Department of Control System and Instrumentation 17. listopadu 15 708 33 Ostrava- Poruba

Paper deals with industrial realization of feedback control of demanding applications on their control, control algorithms and visualization together with design, implementation and real time control from MATLAB/Simulink Environment. Paper shows direct connection and implementation way of designed control schemas of prepared applications to an industrial WinPLC. Described is a way to produce a permanent solution in control applications that are fully prepared, designed and implemented directly from MATLAB/Simulink to the target control platform. As a part, the mentioned solution is using a multiplatform control system REX as a bridge between MATLAB and target platforms. These methods allow minimizing costs of development of control of applications, because it produces target permanent realizations in comparison to classical development methods that usually need expensive real time measurement cards and produce only one purpose development solution.

关键词： WinPLC Matlab Simulink control system REX control Real Time

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A study on the dynamic SOC compensation of an ultracapacitor module for the hybrid energy storage system

A study on the dynamic SOC compensation of an ultracapacitor...

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International Conference on Telecommunications Energy (INTELEC)

作者： Hyun-Sik Song Jin-Beom Jung Baek-Haeng-Lee Dong-Hyun Shin Byoung-Hoon Kim Yu-Cheol Park Hoon-Heo Hee-Jun Kim Department of Control and Instrumentation Engineering Korea University South Korea Electronic System Research and Development Center Korea Automotive Technology Institute South Korea Katech Cheonan KR Hanyang University Seongdong-gu Seoul KR

ISBN: (纸本)9781424424900

There have been a number of methods proposed for accurate state of charge (SOC) estimation of a battery as an important role of the battery management system (BMS). However, adequate test data of batteries and BMS development costs must be taken into consideration before application in actual vehicles. In addition, different algorithms need to be adopted according to the type of energy storage device and system configuration. For a mild-HEV hybrid energy storage device that uses the ultracapacitor module and the VRLA battery, the small capacitance of ultracapacitor module makes accurate SOC difficult. Accordingly, this paper introduces a dynamic SOC estimation algorithm capable of SOC compensation of the ultracapacitor module even when there is current input and output. A cycle profile that simulates the operating conditions of a mild-HEV was applied to a vehicle simulator to verify the effectiveness of the proposed algorithm based on testing.

关键词： Supercapacitors Energy storage Vehicle dynamics Testing State estimation Battery management systems Costs Battery powered vehicles Capacitance Heuristic algorithms

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Optimal Design of Reactive Power PI Regulator for Hydro Power Plants

Optimal Design of Reactive Power PI Regulator for Hydro Powe...

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IEEE International Conference on control Applications

作者： Robert, Gerard Hurtado, Dominique Control System EDF Hydro Engineering Centre France Instrumentation and Control Department EDF National Nuclear Equipments Centre France

ISBN: (纸本)9781424422227

This paper presents an optimal PI controller for Automatic reactive power Regulators (AQR) which equip some French hydro power plants. The developed AQR algorithm participates to secondary voltage control following some control performance criteria required by the Transmission system Operator. controller parameters are calculated by solving a constrained nonlinear optimization that maximizes the robustness of the feedback control while incorporating the control performance specifications. That involves a 'worst case' design approach which takes into account modeling uncertainties and gain variations in the operating domain. Moreover a mere anti-windup strategy has been achieved in the AQR algorithm. Referring to Matlab simulations and measurements carried out on a 110 MVA pilot hydro unit, results are complying with demands.

关键词： Reactive power

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The advantages and disadvantages of kalman filtering in iterative learning control

The advantages and disadvantages of kalman filtering in iter...

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18th Annual Space Flight Mechanics Meeting

作者： Panomruttanarug, Benjamas Longman, Richard W. Department of Control System and Instrumentation Engineering King Mongkut's University of Technology Thonburi Bangkok Thailand Mechanical Engineering Civil Engineering and Engineering Mechanics Columbia University New York NY 10027 United States

ISBN: (纸本)9780877035442

Iterative learning control (ILC) can eliminate deterministic tracking errors of a control system that repeatedly performs the same tracking maneuver. It iterates with the real world rather than with a model aiming to achieve this zero error, and hence it can achieve lower final error levels in the real world than one could obtain when limiting oneself to using a mathematical model aiming to achieve zero tracking error. There are spacecraft applications when fine pointing sensors perform repeated scans. When there is substantial plant and measurement noise, it is natural to consider using a Kalman filter to improve the signal used by the learning control law. In a separate work, this was analyzed for the sister field of repetitive control (RC). It was observed that when the model in the Kalman filter is imperfect, the use of a Kalman filter can make the final error levels worse rather than better, and care must be taken to assess the benefit in reduced random variations compared to the deterministic error introduced. This is also the case when there are unmodeled repeating external disturbances. Here we show that the same situation applies to ILC if one uses a Kalman filter running in time steps during each iteration. But one can reformulate the Kalman filter to operate in the repetition or iteration domain, and when this is done, one can still converge to zero expected value of the tracking error in the presence of model errors and external repeating disturbances.

关键词： Kalman filters

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Adaptive brake warning system for automobiles

Adaptive brake warning system for automobiles

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International Conference on ITS Telecommunications (ITST)

作者： P. Thammakaroon P. Tangamchit Department of Control System and Instrumentation Engineering King Mongkut''s University of Technology Thailand

We present an adaptive brake warning system in order to help a driver keep a safe distance from the cars in front to avoid rear-end collisions. The safe distance continuously varies according to the carpsilas velocity, driving events, and road conditions. Three sensors, an ECU reader, a camera, and a laser range finder, are used to collect the vehicular velocity, the density of cars on the road and the following distance respectively. These data are sent to a main computer to calculate the level of critical situation where the driver needs to apply brake ranging from 0 to 4 where level 0 is the safest and level 4 means the most dangerous. Two decision algorithms: adaptive threshold and fuzzy inference system are compared. The results from real driving situations indicated that both methods can achieve an accuracy of 76.98% and 65.46% respectively.

关键词： Adaptive systems Alarm systems Automobiles Roads Cameras Vehicles Collision avoidance Programmable control Adaptive control Accidents

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