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international conference on computer Applications and Industrial Electronics (ICCAIE)

作者： Hum Yan Chai Hon Hock Woon Liang Kim Meng Yuen Shang Li Advanced Informatics Architecture Development (AIAD) MIMOS Berhad Kuala Lumpur

ISBN: (纸本)9781479943500

Automated car license plate recognition systems are developed and applied for purpose of facilitating the surveillance, law enforcement, access control and intelligent transportation monitoring with least human intervention. The challenging part of this system lies in accurately recognizing a non-standard plate that consists of various character fonts, character sizes, plate size, orientations, plate and character colors, materials, positions of numeric characters and alphabetic characters. The objective of the paper is to present our developed algorithms that cope with these practical variations in the context of non-standard Malaysian plate from image scene acquisition to optical character recognition. In each standard step of license plate recognition, we consider the processing of the plates under various environmental condition and non-standard formation of characters in real scene. The algorithm is tested with 500 Malaysian car plates in real-time and the result shown that the algorithm remains relatively robust under different conditions and car plate standard.

关键词： computer applications Industrial electronics

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Real-Time Traffic monitoring using Wireless Beacons with the Cell Transmission Model

Real-Time Traffic Monitoring using Wireless Beacons with the...

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17th international IEEE conference on intelligent Transportation Systems & The Asia-Pacific Council on Systems Engineering conference 2014

作者： Lavy Libman Saeed Bastani S.Travis Waller School of Computer Science and Engineering UNSW Australia Department of Electrical and Information Technology Lund UniversitySweden School of Civil and Environmental Engineering UNSW Australia

One of the exciting emerging uses of DSRC/WAVE technology is the ability to monitor real-time road traffic conditions with high resolution,using beacons transmitted by individual vehicles,and make informed traffic control decisions such as traffic light timing or route ***,previous studies have shown that achieving a high level of accuracy in traffic density estimation requires very frequent beacon transmissions as well as a high adoption rate of the technology,which raises a scalability problem in dense urban settings and effectively requires a dedicated radio transceiver,precluding the wireless channel from being used for any other purpose at the same *** this paper,we propose an approach that allows the wireless channel load due to beacon transmissions to be significantly reduced while retaining very low traffic estimation error levels,by using tools from traditional traffic theory(such as the Cell Transmission Model,CTM) to analyze position and speed signals from infrequent wireless beacons and predict the dynamics of the traffic behavior in *** approach is evaluated in a typical urban scenario consisting of a signalized intersection of multiple-lane roads,leading to new insights about how the value of the information in vehicles' beacons depends strongly on their location with respect to the intersection.

关键词： CTM Model Real-Time Traffic monitoring using Wireless Beacons with the Cell Transmission Model

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Decentralized multi-agent tracking of unknown environmental level sets by a team of nonholonomic robots

Decentralized multi-agent tracking of unknown environmental ...

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international conference on Ultra Modern Telecommunications and Workshops (ICUMT)

作者： Kirill Ovchinnikov Anna Semakova Alexey Matveev Department of Mathematics and Mechanics Saint Petersburg State University St. Petersburg RUSSIA

We consider a team of nonholonomic Dubins-car like robots traveling forward over paths with bounded curvatures in a planar region supporting an unknown scalar field. Every robot measures the field value at its location and has no communication facilities; the robots are anonymous to one another. The objective is to detect and localize the level set where the unknown field assumes a given value. We present a new distributed navigation and guidance strategy that ensures convergence of all robots to the desired level set and its subsequent display via stable circulation of the robots along this set. Moreover, this strategy prevents collisions between the robots and ultimately provides their sub-uniform distribution over the level set, so that the entire team effectively and representatively portrays this set. The proposed control strategy does not employ gradient estimation, which typically needs ineffective concentration of robots into tight clusters, and is non-demanding with respect to both computation and motion. Its mathematically rigorous justification is provided. The effectiveness of the proposed guidance law is confirmed by computer simulations and real-world experiments.

关键词： Robot kinematics Robot sensing systems Collision avoidance monitoring Convergence Level set

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A new Challenge in Ecological Process control based on PLCs with Profinet Communication Protocol

A new Challenge in Ecological Process Control based on PLCs ...

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19th international conference on control Systems and computer Science

作者： Dumitrascu, Alexandru Stefanoiu, Dan Tomita, Ionut Univ Politehn Bucuresti Automat Control & Comp Fac Dept Automat Control & Syst Engn Bucharest Romania Asti Automat SRL Bucharest Romania

ISBN: (纸本)9780769549804

The current situation of environmental resources requires their efficient usage through efficient process control. But, process control can not be achieved without an essential component: the communication between all devices, such as sensors, controllers, actuators, programming stations etc. The aim is to achieve the irrigation process of plants in greenhouse conditions. Therefore, it is submitted a comprehensive application that proposes to be a distributed control system including data acquisition and processing, both local and remote monitoring of the process parameters. The distributed system is based on modern equipment: Siemens Simatic PLCs and HMI, Memsic (e) over bar Ko Pro wireless sensors network, level sensors for irrigation tanks and actuators such as on/off valves and pumps. In terms of communication between equipments, an industrial bus and protocols were used - Profinet and wireless communication. The software part is provided by TIA Portal with STEP 7 and WinCC flexible RT and LOGO! Soft Comfort for programming the automation devices. ModbusTCP was used to develop the communication protocol between central devices.

关键词： wireless sensor network data acquisition and monitoring Profinet PLC HMI

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intelligent control System of Transformer Cooling Based on DCS and Dual PLC

Intelligent Control System of Transformer Cooling Based on D...

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5th international conference on Measuring Technology and Mechatronics Automation (ICMTMA)

作者： Chen, Guojin Xu, Ming Liu, Tingting Ni, Jing Xie, Dong Zhang, Yanping Hangzhou Dianzi Univ Sch Mech Engn Hangzhou 310018 Zhejiang Peoples R China Hangzhou kein Electric Power Equip Co Ltd Hangzhou Zhejiang Peoples R China

ISBN: (纸本)9780769549323;9781467356527

Aiming at the problems of the traditional transformer cooler's control system, the paper developed the intelligent control system of the transformer cooling based on the DCS dual PLC. The DCS and dual PLC's redundancy, the intelligent motor controller, the system's centralized monitoring platform, and the environmental control system achieve the monitoring, controlling and remote status monitoring for the transformer cooling system, and improve the reliability and adaptability of the transformer cooling system. They can be suitable for the intelligent electricity grid. The technology is in the leading domestic level because of innovation in the high-performance distributed bus, the integrated design of three-phase solid state relay and magnetic latching relay and the PLC cooling mode using semiconductor refrigeration.

关键词： Transformer Cooler intelligent control System DCS Dual PLC Bus-LAN

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distributed computer system for monitoring and control of thermoacoustic processes

Distributed computer system for monitoring and control of th...

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2013 IEEE 7th international conference on intelligent Data Acquisition and Advanced Computing Systems, IDAACS 2013

作者： Kondratenko, Yuriy P. Korobko, Volodymyr V. Korobko, Oleksiy V. Petro Mohyla Black Sea State University 10 68th Desantnykiv st. Mykolaiv Ukraine National University of Shipbuilding 9 Geroiv Stalingrada ave. Mykolaiv Ukraine

ISBN: (纸本)9781479914265

This paper discusses the synthesis of distributed computer system for monitoring and control of thermoacoustic processes. Based on the analysis of existing monitoring systems, authors show the main tasks of the synthesized system as well as describe its structure and main components. Created distributed computer system (DCS) is then tested on the experimental thermoacoustic installation. Using the data obtained authors describe the approach for thermoacoustic systems control by the adjustments in the resonator length of the thermoacoustic device. © 2013 IEEE.

关键词： monitoring

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The intelligent SMT Workshop monitoring System Based on ZigBee Wireless Sensor Network

The Intelligent SMT Workshop Monitoring System Based on ZigB...

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international conference on computer Sciences and Applications (CSA)

作者： Fang, Yu Tan, Li Guangxi Technol Coll Machinery & Elect GXCME Dept Elect Engn Nanning Peoples R China

ISBN: (纸本)9780769551258

The ZigBee technology is a new wireless communication technology with the characters of low cost, low complexity and low consumption. Aiming at the requirement of the special environmental and security-defense of SMT workshop, an intelligent SMT workshop monitoring system based on ZigBee wireless sensor network technology is provided. This system makes the SMT workshop discrete devices as an entirety that can be correlate and cooperative by means of wireless sensor networks. SMT workshop temperature and humidity monitoring, automatic burglar alarm, automatic fire alarm can be implemented by the system. A serial of tests have proved that the system can work with flexibility and high control precision, which has important practical significance to unified management of workshop.

关键词： intelligent workshop monitoring system Wireless Sense Network ZigBee

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Generic model of a community-based microgrid integrating wind turbines, photovoltaics and CHP generations

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APPLIED ENERGY 2013年 112卷 1475-1482页

作者： Ma, Xiandong Wang, Yifei Qin, Jianrong Univ Lancaster Dept Engn Lancaster LA1 4YR England China BBA Power Suzhou 215011 Peoples R China

Development and deployment of low-carbon energy technologies has been a national strategy of both the UK and China for a number of years, including the use of renewable generation technologies and the improvement of energy efficiency of operations and activities. The paper addresses several issues of generic importance to a residential microgrid system such as network modelling, advanced control and integration of intelligent monitoring techniques. The system, comprising representative distributed generation technologies of photovoltaics, wind turbines and combined heat and power, has been simulated by PSCAD/EMTDC under different operational scenarios. Studies include the effect of environmental condition changes, control systems and power electronics on wind turbines and PV cells, and the mixture of wind/solar/CHP energy generation under dominance of each technology. The performance and dynamics of the system are examined against symmetrical and asymmetrical electrical faults to seek an optimal isolation and restoration of the distributed generation unit from the connected grid system. Modelling these system interactions has demonstrated the feasibility of the proposed residential microgrid system. (C) 2012 Elsevier Ltd. All rights reserved.

关键词： Photovoltaic (PV) generator Wind turbine Combined heat and power (CHP) distributed generation (DG) Modelling and simulation

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Design and implementation of large computer room environment intelligent monitoring System based on Zigbee

Design and implementation of large computer room environment...

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3rd international conference on Advanced Design and Manufacturing Engineering (ADME 2013)

作者： Zhao, Xingchen Li, Jinqiang Liu, Jian Shi, Quan Sun, Ling Nantong Univ Nantong Peoples R China

ISBN: (纸本)9783037858431

For large network communication equipment are in need of real time computer maintenance and management, the traditional manual management can't meet this need, so this paper designs a set of real-time data acquisition, intelligent alarm and remote control, large computer room environment monitoring system based on Zigbee. The system is composed of terminal monitoring subsystem, control subsystem and management terminal. The terminal monitoring system consists of ZigBee node through the network, and its data acquisition include temperature, humidity and smoke environmental data;MSP430F1611 and Ethernet module monitoring subsystem are responsible for packet analysis, Ethernet connection, and Web intelligent remote switch control when monitoring data reaches a threshold. The system also can be used in street lamp remote intelligent control, intelligent irrigation control system of greenhouse vegetables and so on. Therefore, it has good application value.

关键词： ZigBee Embedded Web MSP430 microcomputer CS8900A Ethernet controller

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Study on intelligent monitoring for Cooling System of Power Transformer

Study on Intelligent Monitoring for Cooling System of Power ...

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3rd international conference on Advances in Materials Manufacturing (ICAMMP 2012)

作者： Chen, Guojin Xu, Ming Liu, Tingting Ni, Jing Xie, Dong Zhang, Yanping Hangzhou Dianzi Univ Sch Mech Engn Hangzhou 310018 Zhejiang Peoples R China Hangzhou Kelin Elect Power Equipment Co Ltd Hangzhou 310011 Zhejiang Peoples R China

ISBN: (纸本)9783037856482

On the basis of studying the transformer condition assessment, the paper put forward the monitoring framework of the transformer cooler based on the intelligent electrical grid, and developed the intelligent monitoring system of the transformer cooler based on the DCS and dual PLC. The system used the DCS and dual PLC redundancy, the intelligent controller of the motor, the system's platform for the centralized monitoring, the environmental control system and the other advanced technology, and implemented the monitoring, remote control and status monitoring of the transformer cooling system to improve the reliability and adaptability of the transformer cooler system. The system can be applied for the intelligent electrical grid. The above technologies are innovative in the high-performance distributed bus, the integrated design of three-phase solid state relay and magnetic latching relay and the cooling technology of the semiconductor in the PLC module, and lie in the leading domestic level.

关键词： Power Transformer Cooling System intelligent monitoring Dual-PLC Redundancy intelligent Electrical Grid

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