How to design a practical, low-cost voice signal processing system has been paid more attention since voice signal processing plays a significant role for information exchange in our highly developed information society. The paper firstly introduces the function block diagram of the voice signal processing system and its processing method; then expatiates the hardware design based on DSP (Digital Signal Processor), offers key reference circuits and some design principles of the system; finally, puts forward the speech recognition software disposal processing for system function verification. Since the system adopts DSP processing technology, it has high efficiency; at the same time, is practical and low-cost. Otherwise, in the memory expansion and interface of the system design, FPGA (Field Programmable Gate Array) is used as the system decode device and interface between DSP and CODEC. In this way, the system realizes the function dividing, so computing circuit of the DSP has been used more appropriate. At the same time, the FPGA improves the flexibility and reduce the cost and the time to market.
{"title":"Design and implementation of voice signal processing system based on DSP and FPGA","authors":"Wei Zhang, Diancheng Wu, Zhiyuan Xue, Tiejun Zhang, Donghui Wang, C. Hou","doi":"10.1109/ICIST.2013.6747843","DOIUrl":"https://doi.org/10.1109/ICIST.2013.6747843","url":null,"abstract":"How to design a practical, low-cost voice signal processing system has been paid more attention since voice signal processing plays a significant role for information exchange in our highly developed information society. The paper firstly introduces the function block diagram of the voice signal processing system and its processing method; then expatiates the hardware design based on DSP (Digital Signal Processor), offers key reference circuits and some design principles of the system; finally, puts forward the speech recognition software disposal processing for system function verification. Since the system adopts DSP processing technology, it has high efficiency; at the same time, is practical and low-cost. Otherwise, in the memory expansion and interface of the system design, FPGA (Field Programmable Gate Array) is used as the system decode device and interface between DSP and CODEC. In this way, the system realizes the function dividing, so computing circuit of the DSP has been used more appropriate. At the same time, the FPGA improves the flexibility and reduce the cost and the time to market.","PeriodicalId":415759,"journal":{"name":"2013 IEEE Third International Conference on Information Science and Technology (ICIST)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117115922","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 : 2013-03-23DOI: 10.1109/ICIST.2013.6747595
Qinling Zhang, Yang Liu, Feifei Wen
Combined with the research of the power distribution system structure and the analysis of flight stage priority, modeling and simulation of the electrical load management functions in the helicopter automatic power distribution system were accomplished. The complete digital simulation of distribution system was achieved with MATLAB/SIMULINK. The key models including the Power System Processor (PSP) and the Electric Load Management Center (ELMC) were established based on the electric load equations management theory, which consists of power supply request equation, load state equation and load control equation. Compared the simulation data with the physical experiment platform data, the result validates the effectiveness and accuracy of this modeling approach.
{"title":"Modeling and simulation of helicopter automatic distribution system based on SIMULINK","authors":"Qinling Zhang, Yang Liu, Feifei Wen","doi":"10.1109/ICIST.2013.6747595","DOIUrl":"https://doi.org/10.1109/ICIST.2013.6747595","url":null,"abstract":"Combined with the research of the power distribution system structure and the analysis of flight stage priority, modeling and simulation of the electrical load management functions in the helicopter automatic power distribution system were accomplished. The complete digital simulation of distribution system was achieved with MATLAB/SIMULINK. The key models including the Power System Processor (PSP) and the Electric Load Management Center (ELMC) were established based on the electric load equations management theory, which consists of power supply request equation, load state equation and load control equation. Compared the simulation data with the physical experiment platform data, the result validates the effectiveness and accuracy of this modeling approach.","PeriodicalId":415759,"journal":{"name":"2013 IEEE Third International Conference on Information Science and Technology (ICIST)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117322121","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 : 2013-03-23DOI: 10.1109/ICIST.2013.6747622
Nguyen Hoa, Tran Duc Hieu
This paper introduces a probabilistic relational data base model (PRDB). In this model, the tuple attribute value of relations is uncertain and represented by a probabilistic triple. Every probabilistic triple consists of a set of relational attribute values and two upper and lower bound probability distributions over the set of the attribute values. Semantics of such representation indicating that the attribute has a value in the set with a probability belongs to an interval from the upper and lower bound of the set. On the base and using probabilistic combination strategies in Eiter et al (2001), we define the notions of uncertain values, schemas, probabilistic relations, and selection operation as respective extensions of the notions of values, schemas, relations, and selection operation in the conventional relational database model.
{"title":"A probabilistic relational data model for uncertain information","authors":"Nguyen Hoa, Tran Duc Hieu","doi":"10.1109/ICIST.2013.6747622","DOIUrl":"https://doi.org/10.1109/ICIST.2013.6747622","url":null,"abstract":"This paper introduces a probabilistic relational data base model (PRDB). In this model, the tuple attribute value of relations is uncertain and represented by a probabilistic triple. Every probabilistic triple consists of a set of relational attribute values and two upper and lower bound probability distributions over the set of the attribute values. Semantics of such representation indicating that the attribute has a value in the set with a probability belongs to an interval from the upper and lower bound of the set. On the base and using probabilistic combination strategies in Eiter et al (2001), we define the notions of uncertain values, schemas, probabilistic relations, and selection operation as respective extensions of the notions of values, schemas, relations, and selection operation in the conventional relational database model.","PeriodicalId":415759,"journal":{"name":"2013 IEEE Third International Conference on Information Science and Technology (ICIST)","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116061990","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 : 2013-03-23DOI: 10.1109/ICIST.2013.6747702
C. Chen, W. Zou, Jiajun Wang
In this paper, a simple and efficient 3D surface reconstruction algorithm which can be implemented on mid or low-end computers is proposed. In this algorithm, the 3D images are obtained by a depth motion sensing device named Kinect. Data from region of interests are obtained by segmenting images whose k-neighbor relationship is established with a k-dimensional tree (KD-tree). After patching the point cloud holes with a bicubic spline function and a triangular mesh, the 3D surface of the object is reconstructed. Furthermore, the neighborhoods defined differently are used to connect regions since several non-connected regions exist in the point cloud. Experimental results show that the proposed algorithm based on the Kinect platform can be used to reconstruct complete and smooth surface even if the point cloud is non-connected in space and some of the captured data are lost.
{"title":"3D surface reconstruction based on Kinect","authors":"C. Chen, W. Zou, Jiajun Wang","doi":"10.1109/ICIST.2013.6747702","DOIUrl":"https://doi.org/10.1109/ICIST.2013.6747702","url":null,"abstract":"In this paper, a simple and efficient 3D surface reconstruction algorithm which can be implemented on mid or low-end computers is proposed. In this algorithm, the 3D images are obtained by a depth motion sensing device named Kinect. Data from region of interests are obtained by segmenting images whose k-neighbor relationship is established with a k-dimensional tree (KD-tree). After patching the point cloud holes with a bicubic spline function and a triangular mesh, the 3D surface of the object is reconstructed. Furthermore, the neighborhoods defined differently are used to connect regions since several non-connected regions exist in the point cloud. Experimental results show that the proposed algorithm based on the Kinect platform can be used to reconstruct complete and smooth surface even if the point cloud is non-connected in space and some of the captured data are lost.","PeriodicalId":415759,"journal":{"name":"2013 IEEE Third International Conference on Information Science and Technology (ICIST)","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115469704","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 : 2013-03-23DOI: 10.1109/ICIST.2013.6747560
Li-Bao An, Ming-Ying Chen, Peiqing Yang
Machining parameter optimization plays an important role in satisfying quality requirements of machined parts at low production cost or time. It requires optimal selection of machining parameters and is essential for the process automation and implementation of a computer-integrated manufacturing system. In this research, a brief review of recent progress on the optimization of machining parameters is introduced. Some new machining practices developed in recent years are discussed including hard turning, dry cutting, high speed machining, and machining of difficult-to-machine materials. Modeling skills for creating relations between input parameters and output performances of machining processes and optimization techniques for solving optimal or near-optimal solutions are summarized and analyzed.
{"title":"Recent development of parameter optimization for machining processes","authors":"Li-Bao An, Ming-Ying Chen, Peiqing Yang","doi":"10.1109/ICIST.2013.6747560","DOIUrl":"https://doi.org/10.1109/ICIST.2013.6747560","url":null,"abstract":"Machining parameter optimization plays an important role in satisfying quality requirements of machined parts at low production cost or time. It requires optimal selection of machining parameters and is essential for the process automation and implementation of a computer-integrated manufacturing system. In this research, a brief review of recent progress on the optimization of machining parameters is introduced. Some new machining practices developed in recent years are discussed including hard turning, dry cutting, high speed machining, and machining of difficult-to-machine materials. Modeling skills for creating relations between input parameters and output performances of machining processes and optimization techniques for solving optimal or near-optimal solutions are summarized and analyzed.","PeriodicalId":415759,"journal":{"name":"2013 IEEE Third International Conference on Information Science and Technology (ICIST)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123393822","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 : 2013-03-23DOI: 10.1109/ICIST.2013.6747569
Xingsheng Yuan, Fengtao Xiang, Zhengzhi Wang
In this paper, we propose a new automatic color image segmentation method using Colored Sift (CSIFT) and Graph Cuts. Color provides valuable information in object segmentation and recognition tasks. However, color information is vulnerable to be affected by shadows and highlights. CSIFT is a stable and distinctive feature with respect to variations in the photometrical imaging conditions. It has been demonstrated that the CSIFT is more robust than the conventional SIFT with respect to color and photometrical variations. On the other hand, Graph Cuts is proposed as a segmentation method of a detailed object region. But it is necessary to give seeds manually. In our method, the object is recognized first by CSIFT interest points. After that, the object region is cut out by Graph Cuts using CSIFT interest points as seeds.
{"title":"Automatic color image segmentation using CSIFT and Graph Cuts","authors":"Xingsheng Yuan, Fengtao Xiang, Zhengzhi Wang","doi":"10.1109/ICIST.2013.6747569","DOIUrl":"https://doi.org/10.1109/ICIST.2013.6747569","url":null,"abstract":"In this paper, we propose a new automatic color image segmentation method using Colored Sift (CSIFT) and Graph Cuts. Color provides valuable information in object segmentation and recognition tasks. However, color information is vulnerable to be affected by shadows and highlights. CSIFT is a stable and distinctive feature with respect to variations in the photometrical imaging conditions. It has been demonstrated that the CSIFT is more robust than the conventional SIFT with respect to color and photometrical variations. On the other hand, Graph Cuts is proposed as a segmentation method of a detailed object region. But it is necessary to give seeds manually. In our method, the object is recognized first by CSIFT interest points. After that, the object region is cut out by Graph Cuts using CSIFT interest points as seeds.","PeriodicalId":415759,"journal":{"name":"2013 IEEE Third International Conference on Information Science and Technology (ICIST)","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124689636","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 : 2013-03-23DOI: 10.1109/ICIST.2013.6747798
Yaoran Zhang, Fei Song, Zhang Deng, C. Li
In cognitive radio ad hoc networks (CRAHNs), because mobile devices are mainly powered by battery, efficient consumption of energy is a key problem to be improved. In this paper we study how to find an energy efficient route for a session in CRAHNs. We propose a relative energy metric for routing in CRAHNs, and develop two relay users selection methods for CRAHNs, one of which is proactive and the other is reactive. The new routing scheme could select proper relay nodes, channels, and transmitter power for a session, aims to supply enough communication rate, to decrease the average total power consumption of each session, and to prolong the life of the total network at the same time. In addition, we compare the performance of a proactive route scheme with that of reactive method. Numerical results show that the effectiveness of our proposed routing scheme is with good generalization ability, and the reactive node selection method may better satisfy CRNs.
{"title":"An energy-aware routing for cognitive radio ad hoc networks","authors":"Yaoran Zhang, Fei Song, Zhang Deng, C. Li","doi":"10.1109/ICIST.2013.6747798","DOIUrl":"https://doi.org/10.1109/ICIST.2013.6747798","url":null,"abstract":"In cognitive radio ad hoc networks (CRAHNs), because mobile devices are mainly powered by battery, efficient consumption of energy is a key problem to be improved. In this paper we study how to find an energy efficient route for a session in CRAHNs. We propose a relative energy metric for routing in CRAHNs, and develop two relay users selection methods for CRAHNs, one of which is proactive and the other is reactive. The new routing scheme could select proper relay nodes, channels, and transmitter power for a session, aims to supply enough communication rate, to decrease the average total power consumption of each session, and to prolong the life of the total network at the same time. In addition, we compare the performance of a proactive route scheme with that of reactive method. Numerical results show that the effectiveness of our proposed routing scheme is with good generalization ability, and the reactive node selection method may better satisfy CRNs.","PeriodicalId":415759,"journal":{"name":"2013 IEEE Third International Conference on Information Science and Technology (ICIST)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122648746","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 : 2013-03-23DOI: 10.1109/ICIST.2013.6747820
Yin Wu, Wenbo Liu, Yongjun Zhu
Wireless sensor network (WSN) has got increasingly in-depth study and application because of its small size, flexible layout, strong reliability and other advantages, but in the mean time the life of a wireless sensor node is heavily dependent on the power supply batteries. This paper studies the design of a wireless sensor node which is powered by a micro wind turbine generator. It adopts an optimal power management to make the node working neutrally: never dies out of energy. This management consists of an AC-DC converter, an energy storage element and a maximum power transfer tracking (MPTT) circuit to sustain the operation of wireless sensor node over a wide range wind conditions. Extensive experimental results show that through the proposed power management, wind energy conversion efficiency improves to 80%, and the harvested power increases three times than before. Thus this wind powered wireless sensor node could work independently and has a good application prospect.
{"title":"Design of a wind energy harvesting wireless sensor node","authors":"Yin Wu, Wenbo Liu, Yongjun Zhu","doi":"10.1109/ICIST.2013.6747820","DOIUrl":"https://doi.org/10.1109/ICIST.2013.6747820","url":null,"abstract":"Wireless sensor network (WSN) has got increasingly in-depth study and application because of its small size, flexible layout, strong reliability and other advantages, but in the mean time the life of a wireless sensor node is heavily dependent on the power supply batteries. This paper studies the design of a wireless sensor node which is powered by a micro wind turbine generator. It adopts an optimal power management to make the node working neutrally: never dies out of energy. This management consists of an AC-DC converter, an energy storage element and a maximum power transfer tracking (MPTT) circuit to sustain the operation of wireless sensor node over a wide range wind conditions. Extensive experimental results show that through the proposed power management, wind energy conversion efficiency improves to 80%, and the harvested power increases three times than before. Thus this wind powered wireless sensor node could work independently and has a good application prospect.","PeriodicalId":415759,"journal":{"name":"2013 IEEE Third International Conference on Information Science and Technology (ICIST)","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122885268","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 : 2013-03-23DOI: 10.1109/ICIST.2013.6747697
Xiang Cheng, Ganghong Zhao, Changyu Chen, Wei Wang
As for the mass data and record process variables produced during the aircraft digital manufacturing project, the information interactive model based on XML in the aircraft manufacturing project management is proposed from a new aspect. By establishing the independent interactive module between CIP(Central Information Platform) and Heterogeneous Database, using JDOM to visit and operate the mapping between XML document and relational database, a standard interface with good expansibility in different platforms for exchanging data is given in the article which greatly improves the information sharing and integration efficiency of aviation enterprise.
{"title":"The application of XML-based information interactive model in aircraft manufacturing project management","authors":"Xiang Cheng, Ganghong Zhao, Changyu Chen, Wei Wang","doi":"10.1109/ICIST.2013.6747697","DOIUrl":"https://doi.org/10.1109/ICIST.2013.6747697","url":null,"abstract":"As for the mass data and record process variables produced during the aircraft digital manufacturing project, the information interactive model based on XML in the aircraft manufacturing project management is proposed from a new aspect. By establishing the independent interactive module between CIP(Central Information Platform) and Heterogeneous Database, using JDOM to visit and operate the mapping between XML document and relational database, a standard interface with good expansibility in different platforms for exchanging data is given in the article which greatly improves the information sharing and integration efficiency of aviation enterprise.","PeriodicalId":415759,"journal":{"name":"2013 IEEE Third International Conference on Information Science and Technology (ICIST)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123818017","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 : 2013-03-23DOI: 10.1109/ICIST.2013.6747804
Yanjun Hu, Yao Wang, Wentao Zhang, Yao-hua Xu, Lele Qiu, Yingguan Wang
The blasting spot monitoring is very important to reduce the occurrence of emergencies and to protect the workers' safety in practical applications. In this paper, we design an early warning system based on WSN (Wireless Sensor Network) which can be used in explosion operations. This system consists of two parts: the hardware part mainly uses several sensors to capture data we need and transmits them to the monitor center through wireless module; the software part mainly receives and processes the captured data, then analyzes the parameters to judge whether the environment parameters are abnormal, if yes, it will alarm in advance to protect the workers. Experiment results show that this system can alarm correctly when the environment parameters are out of limit, which improves the system's reliability and gets some social economic benefits in the meantime. This system does have a grand application prospect.
{"title":"An early warning system in explosion operations based on Wireless Sensor Network","authors":"Yanjun Hu, Yao Wang, Wentao Zhang, Yao-hua Xu, Lele Qiu, Yingguan Wang","doi":"10.1109/ICIST.2013.6747804","DOIUrl":"https://doi.org/10.1109/ICIST.2013.6747804","url":null,"abstract":"The blasting spot monitoring is very important to reduce the occurrence of emergencies and to protect the workers' safety in practical applications. In this paper, we design an early warning system based on WSN (Wireless Sensor Network) which can be used in explosion operations. This system consists of two parts: the hardware part mainly uses several sensors to capture data we need and transmits them to the monitor center through wireless module; the software part mainly receives and processes the captured data, then analyzes the parameters to judge whether the environment parameters are abnormal, if yes, it will alarm in advance to protect the workers. Experiment results show that this system can alarm correctly when the environment parameters are out of limit, which improves the system's reliability and gets some social economic benefits in the meantime. This system does have a grand application prospect.","PeriodicalId":415759,"journal":{"name":"2013 IEEE Third International Conference on Information Science and Technology (ICIST)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125897031","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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