Pub Date : 2011-07-20DOI: 10.1109/PACC.2011.5978926
T. S. Sirish, K. S. Sivanandan, Nagaraju Kothapalli
For many people with disabilities, assistive technology is an essential condition to be able to do their activities of daily life. As the people age increases their physical functions degrade. So in order to provide physical support and speed up of their activities of the daily life many people are using the walking supporting devices. This device should support the wearer during the stance phase of gait. The model developed enables the Orthotic wearer to minimize the effect of hip extensor contraction to stabilize the knee and minimize the sense of security and to balance the body over the assistive device through the stance phase of gait. In this paper a driving circuit is designed, developed and controlled in a more implantable form with minimum resources and affordable cost. The driving circuit for the supervisory control of two stepper motors to lock and unlock the knee during stance phase of gait is designed. Here a Micro-controller is used to control the positions of two stepper motors for the desired positions. The designed circuit is stimulated using Proteus and MP LAB. The driving circuit developed is useful in assistive device to provide lock and unlock mechanism. The simulated results are checked with the hardware setup.
{"title":"Design and Implementation of Knee Lock Mechanism during Stance Phase of Gait by Supervisory Control of Stepper Motors Using PIC 18F","authors":"T. S. Sirish, K. S. Sivanandan, Nagaraju Kothapalli","doi":"10.1109/PACC.2011.5978926","DOIUrl":"https://doi.org/10.1109/PACC.2011.5978926","url":null,"abstract":"For many people with disabilities, assistive technology is an essential condition to be able to do their activities of daily life. As the people age increases their physical functions degrade. So in order to provide physical support and speed up of their activities of the daily life many people are using the walking supporting devices. This device should support the wearer during the stance phase of gait. The model developed enables the Orthotic wearer to minimize the effect of hip extensor contraction to stabilize the knee and minimize the sense of security and to balance the body over the assistive device through the stance phase of gait. In this paper a driving circuit is designed, developed and controlled in a more implantable form with minimum resources and affordable cost. The driving circuit for the supervisory control of two stepper motors to lock and unlock the knee during stance phase of gait is designed. Here a Micro-controller is used to control the positions of two stepper motors for the desired positions. The designed circuit is stimulated using Proteus and MP LAB. The driving circuit developed is useful in assistive device to provide lock and unlock mechanism. The simulated results are checked with the hardware setup.","PeriodicalId":403612,"journal":{"name":"2011 International Conference on Process Automation, Control and Computing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129148117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-07-20DOI: 10.1109/PACC.2011.5978862
M. Senthilkumar, S. Somasundaram
This paper presents a source based reactive protocol for MANET. It is an enhanced version of our previous protocol called "Power aware multiple QoS constraints routing protocol with mobility prediction (PMQRPMP)". It considers QoS parameters namely delay, jitter, bandwidth, and cost of each link on 'n' available paths and selects 'k' paths with good battery backup between a source and a destination during path discovery. EMIQRPDM checks the bandwidth constraint during route request to minimize control overhead. EMIQRPDM uses our new mobility prediction mechanism to find the link expiration time and determines the stability of link expiration time during route reply. It executes path maintenance procedure when the link between two nodes cuts off. EMIQRPDM also considers a backup path during link failure thus reducing control overhead. It uses an intelligent load distribution algorithm to distribute the load on the selected 'k' routing paths as to increase throughput in MANET.
{"title":"Energy Aware Multiple Constraints Intelligent Multipath QoS Routing Protocol with Dynamic Mobility Prediction for MANET","authors":"M. Senthilkumar, S. Somasundaram","doi":"10.1109/PACC.2011.5978862","DOIUrl":"https://doi.org/10.1109/PACC.2011.5978862","url":null,"abstract":"This paper presents a source based reactive protocol for MANET. It is an enhanced version of our previous protocol called \"Power aware multiple QoS constraints routing protocol with mobility prediction (PMQRPMP)\". It considers QoS parameters namely delay, jitter, bandwidth, and cost of each link on 'n' available paths and selects 'k' paths with good battery backup between a source and a destination during path discovery. EMIQRPDM checks the bandwidth constraint during route request to minimize control overhead. EMIQRPDM uses our new mobility prediction mechanism to find the link expiration time and determines the stability of link expiration time during route reply. It executes path maintenance procedure when the link between two nodes cuts off. EMIQRPDM also considers a backup path during link failure thus reducing control overhead. It uses an intelligent load distribution algorithm to distribute the load on the selected 'k' routing paths as to increase throughput in MANET.","PeriodicalId":403612,"journal":{"name":"2011 International Conference on Process Automation, Control and Computing","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123354571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-07-20DOI: 10.1109/PACC.2011.5979018
K. Maghade, Swati S. Jadhav
For first order plus dead time (FOPDT) models, the four parameter optimized PID controller is designed subjecting to constraints on maximum sensitivity Ms and sensitivity to measurement noise Mn. Typical value of Ms is in the range 1 to 2 is considered while selecting the constraint on maximum sensitivity. The design procedure leads to formulation of three nonlinear equations which can be solved iteratively using fsolve function available in MATLAB. The two FOPDT processes are analyzed and simulated for different performance criterion and robustness, considering different values of damping factor ae. The optimal value of ae normally ranges from 0.75 to 0.85.
{"title":"Optimized PID Controller for FOPDT Processes with Constraints on Maximum Sensitivity and Measurement Noise Sensitivity","authors":"K. Maghade, Swati S. Jadhav","doi":"10.1109/PACC.2011.5979018","DOIUrl":"https://doi.org/10.1109/PACC.2011.5979018","url":null,"abstract":"For first order plus dead time (FOPDT) models, the four parameter optimized PID controller is designed subjecting to constraints on maximum sensitivity Ms and sensitivity to measurement noise Mn. Typical value of Ms is in the range 1 to 2 is considered while selecting the constraint on maximum sensitivity. The design procedure leads to formulation of three nonlinear equations which can be solved iteratively using fsolve function available in MATLAB. The two FOPDT processes are analyzed and simulated for different performance criterion and robustness, considering different values of damping factor ae. The optimal value of ae normally ranges from 0.75 to 0.85.","PeriodicalId":403612,"journal":{"name":"2011 International Conference on Process Automation, Control and Computing","volume":"305 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124345804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-07-20DOI: 10.1109/PACC.2011.5979015
C. Ramesh Babu Durai, V. Duraisamy, K. Sahasranaman
Abstract- Newer generations of diagnostic machines are based on digital technologies for data acquisition and consequently with the emergence of digital archiving systems for preservation of diagnosis is rapidly increasing. The goals of Content-Based Image Retrieval (CBIR) systems is to process on collections of images, extract features and based on visual queries, extract relevant image from a repository. The fuzzy relaxation pattern matching technique using rotational invariance has been developed in the framework of fuzzy set and possibility theory. Our method takes into account the uncertainty arising in the calculated values which have to be compared for content based image retrieval. This paper looks into the basic principles and extends to the fuzzy relaxation technique for a given tolerance. Our method was extensively tested in a medical database to identify the class in the classification problem.
{"title":"Content Based Image Retrieval Using Fuzzy Relaxation and Rotational Invariance for Medical Databases","authors":"C. Ramesh Babu Durai, V. Duraisamy, K. Sahasranaman","doi":"10.1109/PACC.2011.5979015","DOIUrl":"https://doi.org/10.1109/PACC.2011.5979015","url":null,"abstract":"Abstract- Newer generations of diagnostic machines are based on digital technologies for data acquisition and consequently with the emergence of digital archiving systems for preservation of diagnosis is rapidly increasing. The goals of Content-Based Image Retrieval (CBIR) systems is to process on collections of images, extract features and based on visual queries, extract relevant image from a repository. The fuzzy relaxation pattern matching technique using rotational invariance has been developed in the framework of fuzzy set and possibility theory. Our method takes into account the uncertainty arising in the calculated values which have to be compared for content based image retrieval. This paper looks into the basic principles and extends to the fuzzy relaxation technique for a given tolerance. Our method was extensively tested in a medical database to identify the class in the classification problem.","PeriodicalId":403612,"journal":{"name":"2011 International Conference on Process Automation, Control and Computing","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124100491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-07-20DOI: 10.1109/PACC.2011.5978961
M. Mandala, C. P. Gupta
This paper proposes an optimal congestion management approach in a deregulated electricity market using Bacterial foraging particle swarm optimization (BFPSO). The aim of the proposed work is to minimize deviations from preferred transaction schedules and hence the congestion cost. Generator reactive power support is considered to lower the congestion cost. The values of Transmission Congestion Distribution factors (TCDFs) are used to select redispatch generators. Numerical results on test systems namely IEEE 30 bus and IEEE 118 bus systems are presented for illustration purpose and the results are compared with Particle swarm optimization (PSO) in terms of solution quality. The comprehensive experimental results prove that the BFPSO is one among the challenging optimization methods which is indeed capable of obtaining higher quality solutions for the proposed problem.
{"title":"Transmission Congestion Management Using Bacterial Foraging- Particle Swarm Optimization","authors":"M. Mandala, C. P. Gupta","doi":"10.1109/PACC.2011.5978961","DOIUrl":"https://doi.org/10.1109/PACC.2011.5978961","url":null,"abstract":"This paper proposes an optimal congestion management approach in a deregulated electricity market using Bacterial foraging particle swarm optimization (BFPSO). The aim of the proposed work is to minimize deviations from preferred transaction schedules and hence the congestion cost. Generator reactive power support is considered to lower the congestion cost. The values of Transmission Congestion Distribution factors (TCDFs) are used to select redispatch generators. Numerical results on test systems namely IEEE 30 bus and IEEE 118 bus systems are presented for illustration purpose and the results are compared with Particle swarm optimization (PSO) in terms of solution quality. The comprehensive experimental results prove that the BFPSO is one among the challenging optimization methods which is indeed capable of obtaining higher quality solutions for the proposed problem.","PeriodicalId":403612,"journal":{"name":"2011 International Conference on Process Automation, Control and Computing","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126327097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-07-20DOI: 10.1109/PACC.2011.5978887
R. Raju, J. P. Anita, P. Vanathi
With the advent of VLSI, very complex circuits can be implemented in a single chip. So the need for testing the chip increases with the integration. Fault diagnosis results in improving the circuit design process, the manufacturing yield, cost of testing and also reduces the time to market. Diagnosis of today's complex faults is a challenging problem due to the explosion of the underlying solution space with the increasing number of fault locations.This paper gives a comprehensive framework for logic diagnosis of multiple arbitrary faults that can occur in combinational digital circuits. This approach employs the effect cause analysis for the fault diagnosis .To demonstrate the applicability of the proposed method stuck at faults ,bridging faults, open-interconnect fault, stuck open faults, delay faults and a combination of these faults in the same circuit simultaneously leading to multiple faults are dealt with
{"title":"Novel Approach for Multiple Arbitrary Faults Diagnosis in Combinational Circuits","authors":"R. Raju, J. P. Anita, P. Vanathi","doi":"10.1109/PACC.2011.5978887","DOIUrl":"https://doi.org/10.1109/PACC.2011.5978887","url":null,"abstract":"With the advent of VLSI, very complex circuits can be implemented in a single chip. So the need for testing the chip increases with the integration. Fault diagnosis results in improving the circuit design process, the manufacturing yield, cost of testing and also reduces the time to market. Diagnosis of today's complex faults is a challenging problem due to the explosion of the underlying solution space with the increasing number of fault locations.This paper gives a comprehensive framework for logic diagnosis of multiple arbitrary faults that can occur in combinational digital circuits. This approach employs the effect cause analysis for the fault diagnosis .To demonstrate the applicability of the proposed method stuck at faults ,bridging faults, open-interconnect fault, stuck open faults, delay faults and a combination of these faults in the same circuit simultaneously leading to multiple faults are dealt with","PeriodicalId":403612,"journal":{"name":"2011 International Conference on Process Automation, Control and Computing","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127988658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-07-20DOI: 10.1109/PACC.2011.5979058
V. Jayaprakasan, S. Vijayakumar, V. S. Kanchana Bhaaskaran
VLSI design techniques are the key to re-engineering the digital gadgets of any kind which are needed to be operated with lower power to ensure a longer backup time. Power reduction in Arithmetic Logic Unit (ALU) is needed for this requirement. Multipliers and adders are the most important structures which use a larger fraction of power in such arithmetic units. This paper analyses the use of an ancient (or Vedic) mathematical approach for building an ALU. Validation for the low power operation of the circuit is made by designing a conventional CMOS counterpart whose power is compared with our ancient arithmetic design. A 4x4 multiplier based on the Vedic and Conventional methods have been designed using SPICE simulator. Simulation results depict the Vedic design incurring 29% of reduced average power.
{"title":"Evaluation of the Conventional vs. Ancient Computation Methodology for Energy Efficient Arithmetic Architecture","authors":"V. Jayaprakasan, S. Vijayakumar, V. S. Kanchana Bhaaskaran","doi":"10.1109/PACC.2011.5979058","DOIUrl":"https://doi.org/10.1109/PACC.2011.5979058","url":null,"abstract":"VLSI design techniques are the key to re-engineering the digital gadgets of any kind which are needed to be operated with lower power to ensure a longer backup time. Power reduction in Arithmetic Logic Unit (ALU) is needed for this requirement. Multipliers and adders are the most important structures which use a larger fraction of power in such arithmetic units. This paper analyses the use of an ancient (or Vedic) mathematical approach for building an ALU. Validation for the low power operation of the circuit is made by designing a conventional CMOS counterpart whose power is compared with our ancient arithmetic design. A 4x4 multiplier based on the Vedic and Conventional methods have been designed using SPICE simulator. Simulation results depict the Vedic design incurring 29% of reduced average power.","PeriodicalId":403612,"journal":{"name":"2011 International Conference on Process Automation, Control and Computing","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115831069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-07-20DOI: 10.1109/PACC.2011.5978885
S. Pavithra, A. Sivaprakasam, T. Manigandan
Direct Torque Control (DTC) is an advanced computation speed control method and is possibly the best among the techniques for variable frequency drive. Because it does not need axes transformation and voltage decoupling blocks. DTC provides direct selection of voltage vectors according to the error obtained and allows direct and independent control of flux linkage and electromagnetic torque by the selection of optimum inverter switching modes. Based on the estimates of flux position and instantaneous errors in torque and stator flux magnitude, a voltage vector is selected to restrict the torque and the flux errors, within the torque and flux hysteresis bands. In the conventional DTC the circular locus is divided into 6 sectors and a total of 8 voltage vectors are used. However, the discrete inverter switching vectors cannot always generate exact stator voltage required to obtain the demanded electromagnetic torque and stator flux linkages. This results in production of ripples in the flux as well as torque. In this proposed work, neutral point clamped inverter is combined with 12 sector methodology. At present, the researchers have used all the 27 voltage vectors available in the 12 sector methodology. But in this proposed work the new switching table is constructed by using only 12 voltage vectors which includes large, medium and zero voltage vectors. The usage of 12 voltage vector gives satisfactory performance as compared to usage of all the 27 voltage vectors. The performance of the proposed work is also compared with classical DTC and 12 sector methodology with 27 voltage vectors. The simulation is performed in MATLAB / SIMULINK environment.
{"title":"Performance Improvement of DTC for Induction Motor with 12-Sector Methodology","authors":"S. Pavithra, A. Sivaprakasam, T. Manigandan","doi":"10.1109/PACC.2011.5978885","DOIUrl":"https://doi.org/10.1109/PACC.2011.5978885","url":null,"abstract":"Direct Torque Control (DTC) is an advanced computation speed control method and is possibly the best among the techniques for variable frequency drive. Because it does not need axes transformation and voltage decoupling blocks. DTC provides direct selection of voltage vectors according to the error obtained and allows direct and independent control of flux linkage and electromagnetic torque by the selection of optimum inverter switching modes. Based on the estimates of flux position and instantaneous errors in torque and stator flux magnitude, a voltage vector is selected to restrict the torque and the flux errors, within the torque and flux hysteresis bands. In the conventional DTC the circular locus is divided into 6 sectors and a total of 8 voltage vectors are used. However, the discrete inverter switching vectors cannot always generate exact stator voltage required to obtain the demanded electromagnetic torque and stator flux linkages. This results in production of ripples in the flux as well as torque. In this proposed work, neutral point clamped inverter is combined with 12 sector methodology. At present, the researchers have used all the 27 voltage vectors available in the 12 sector methodology. But in this proposed work the new switching table is constructed by using only 12 voltage vectors which includes large, medium and zero voltage vectors. The usage of 12 voltage vector gives satisfactory performance as compared to usage of all the 27 voltage vectors. The performance of the proposed work is also compared with classical DTC and 12 sector methodology with 27 voltage vectors. The simulation is performed in MATLAB / SIMULINK environment.","PeriodicalId":403612,"journal":{"name":"2011 International Conference on Process Automation, Control and Computing","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131809511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-07-20DOI: 10.1109/PACC.2011.5979012
Srikanth Doss Kadarundalagi Raghuram Doss
Recognizing the hand written document is one of the biggest challenges because of the variations in the handwritten text. The basic idea of this novel method is "divide and conquer". The algorithm recognizes the image in form of predefined glyphs. Based on the arrangement of the recognized glyphs, the exact character in the image can be recognized by comparing with the predefined glyphs using pattern trees. These set of predefined pattern trees is the signature of each character. The input symbol is compared with each of the patterns and the highest match is found and the correct character is identified.
{"title":"Novel Method for Handwriting Recognition Using a Variant of Decision Trees","authors":"Srikanth Doss Kadarundalagi Raghuram Doss","doi":"10.1109/PACC.2011.5979012","DOIUrl":"https://doi.org/10.1109/PACC.2011.5979012","url":null,"abstract":"Recognizing the hand written document is one of the biggest challenges because of the variations in the handwritten text. The basic idea of this novel method is \"divide and conquer\". The algorithm recognizes the image in form of predefined glyphs. Based on the arrangement of the recognized glyphs, the exact character in the image can be recognized by comparing with the predefined glyphs using pattern trees. These set of predefined pattern trees is the signature of each character. The input symbol is compared with each of the patterns and the highest match is found and the correct character is identified.","PeriodicalId":403612,"journal":{"name":"2011 International Conference on Process Automation, Control and Computing","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129394835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-07-20DOI: 10.1109/PACC.2011.5978980
Ta-Hsiang Chung
The Critical Chain Scheduling (CCS) makes schedule planning and control more effective than traditional project management as CPM and PERT. Traditional network techniques are ineffective in modeling a dynamic and stochastic system such as a construction project. This paper demonstrates how Coloured Petri Nets (CPN), a visual formalism used for modeling discrete event systems, can be used effectively for modeling construction schedule. In this paper, a new scheduling method using Coloured Petri Nets to develop Critical Chain Scheduling (CPN-CCS) is proposed. The paper illustrates the CPN to model and shows how CPN-CCS models of construction schedule can be constructed. The analysis of the CPN-CCS models is performed by Occurrence Graphs (OG) method. And then the relation of the liveness of the CPN-CCS nets will be obtained, which verifies that the construction scheduling can be completed.
{"title":"Modeling of Construction Scheduling with Coloured Petri Nets","authors":"Ta-Hsiang Chung","doi":"10.1109/PACC.2011.5978980","DOIUrl":"https://doi.org/10.1109/PACC.2011.5978980","url":null,"abstract":"The Critical Chain Scheduling (CCS) makes schedule planning and control more effective than traditional project management as CPM and PERT. Traditional network techniques are ineffective in modeling a dynamic and stochastic system such as a construction project. This paper demonstrates how Coloured Petri Nets (CPN), a visual formalism used for modeling discrete event systems, can be used effectively for modeling construction schedule. In this paper, a new scheduling method using Coloured Petri Nets to develop Critical Chain Scheduling (CPN-CCS) is proposed. The paper illustrates the CPN to model and shows how CPN-CCS models of construction schedule can be constructed. The analysis of the CPN-CCS models is performed by Occurrence Graphs (OG) method. And then the relation of the liveness of the CPN-CCS nets will be obtained, which verifies that the construction scheduling can be completed.","PeriodicalId":403612,"journal":{"name":"2011 International Conference on Process Automation, Control and Computing","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133490582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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