Pub Date : 1900-01-01DOI: 10.5220/0008480601440154
Liu Jixin, Yan Tianhong, He Bo, Shen Hongbin, Song Jinliang
: At present, the propeller-dependent drive system is still the mainstream propulsion mode of underwater vehicle. The propeller plays an important role in the whole propulsion system, and its effect directly affects the thrust, speed, efficiency and endurance of the underwater vehicle. The propeller used by autonomous underwater vehicle (AUV) should not only satisfy the demands of thrust and torque, but also high efficiency. In this paper, four kinds of airfoil propellers with different sizes and shapes are designed based on OpenProp software, and their performances are tested by thrust test. The comparison between the four kinds of airfoil propeller and the contrast between the airfoil propeller and the MAU type four-bladed propeller are made. In addition, a series of conclusions are drawn, which lays the foundation for designing the propeller with high efficiency and thrust.
{"title":"Parametric Modeling and Hydrodynamic Analysis of Underwater High Performance Propeller","authors":"Liu Jixin, Yan Tianhong, He Bo, Shen Hongbin, Song Jinliang","doi":"10.5220/0008480601440154","DOIUrl":"https://doi.org/10.5220/0008480601440154","url":null,"abstract":": At present, the propeller-dependent drive system is still the mainstream propulsion mode of underwater vehicle. The propeller plays an important role in the whole propulsion system, and its effect directly affects the thrust, speed, efficiency and endurance of the underwater vehicle. The propeller used by autonomous underwater vehicle (AUV) should not only satisfy the demands of thrust and torque, but also high efficiency. In this paper, four kinds of airfoil propellers with different sizes and shapes are designed based on OpenProp software, and their performances are tested by thrust test. The comparison between the four kinds of airfoil propeller and the contrast between the airfoil propeller and the MAU type four-bladed propeller are made. In addition, a series of conclusions are drawn, which lays the foundation for designing the propeller with high efficiency and thrust.","PeriodicalId":186406,"journal":{"name":"Proceedings of 5th International Conference on Vehicle, Mechanical and Electrical Engineering","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129906147","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 : 1900-01-01DOI: 10.5220/0008873104560460
W. Fan
{"title":"Research of An Improved Satellite-based Quantum Positioning System","authors":"W. Fan","doi":"10.5220/0008873104560460","DOIUrl":"https://doi.org/10.5220/0008873104560460","url":null,"abstract":"","PeriodicalId":186406,"journal":{"name":"Proceedings of 5th International Conference on Vehicle, Mechanical and Electrical Engineering","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132778193","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 : 1900-01-01DOI: 10.5220/0008867702220226
Jianfeng Li, Chunzhao Zhang, Qiang Cao
: Due to the complex coupled motion of shoulder mechanism, design the guiding movement rule of rehabilitation robot generally lack of the glenohumeral (GH) joint motion information. This study focused on development detection system design of the GH joint motion information. In this paper, the detection system incorporates the detection mechanism and measurement system. Design of the detection mechanism includes model of the shoulder complex, configuration as well as structure design of the detection mechanism. Design of the measurement system includes hardware selection and software development. Straight after, detection system was integrated. Then, test and analysis was presented. The results show the detection system can measure and present the GH joint motion information in real time. It provides a method to obtain the movement information of the GH joint, and has practical significance for shoulder function simulation and ergonomics.
{"title":"Detection System Design of the Glenohumeral Joint Motion Information","authors":"Jianfeng Li, Chunzhao Zhang, Qiang Cao","doi":"10.5220/0008867702220226","DOIUrl":"https://doi.org/10.5220/0008867702220226","url":null,"abstract":": Due to the complex coupled motion of shoulder mechanism, design the guiding movement rule of rehabilitation robot generally lack of the glenohumeral (GH) joint motion information. This study focused on development detection system design of the GH joint motion information. In this paper, the detection system incorporates the detection mechanism and measurement system. Design of the detection mechanism includes model of the shoulder complex, configuration as well as structure design of the detection mechanism. Design of the measurement system includes hardware selection and software development. Straight after, detection system was integrated. Then, test and analysis was presented. The results show the detection system can measure and present the GH joint motion information in real time. It provides a method to obtain the movement information of the GH joint, and has practical significance for shoulder function simulation and ergonomics.","PeriodicalId":186406,"journal":{"name":"Proceedings of 5th International Conference on Vehicle, Mechanical and Electrical Engineering","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125371395","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 : 1900-01-01DOI: 10.5220/0008855603670372
Yue Huang, Dongbing Tong
This paper is concerned with the H∞ output feedback control for linear time-invariant (LTI) systems with the quantization to realize the operation optimization of a microgrid (MG). Meanwhile, a novel eventtriggered mechanism is introduced to reduce the number of control signals. Furthermore, a model of observer which is based on the event-triggered mechanism is proposed to verify the synchronization of LTI systems. Based on this model, a criteria which is derived from linear matrix inequalities (LMIs) is provided such that the system performance can be ensured. Finally, a numerical example is presented to illustrate the effectiveness of the results.
{"title":"Event-triggered Observers-based Output Feedback H∞ Control for Linear Time-invariant Systems with Quantization","authors":"Yue Huang, Dongbing Tong","doi":"10.5220/0008855603670372","DOIUrl":"https://doi.org/10.5220/0008855603670372","url":null,"abstract":"This paper is concerned with the H∞ output feedback control for linear time-invariant (LTI) systems with the quantization to realize the operation optimization of a microgrid (MG). Meanwhile, a novel eventtriggered mechanism is introduced to reduce the number of control signals. Furthermore, a model of observer which is based on the event-triggered mechanism is proposed to verify the synchronization of LTI systems. Based on this model, a criteria which is derived from linear matrix inequalities (LMIs) is provided such that the system performance can be ensured. Finally, a numerical example is presented to illustrate the effectiveness of the results.","PeriodicalId":186406,"journal":{"name":"Proceedings of 5th International Conference on Vehicle, Mechanical and Electrical Engineering","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123434390","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 : 1900-01-01DOI: 10.5220/0008850001920196
Linyan Zhang, Honglian Zhang, Changguo Lu
: This paper is devoted to the strength analysis of crane boom with Ansys software. The results of strength analysis and theoretical calculation are compared and analyzed, and a method of using software to analyze the strength of crane boom is discussed. Firstly, using SolidWorks software, the three-dimensional model of each jib of the main arm of heavy crane is established by means of shell pulling, which is saved in x-t format. Secondly, the three-dimensional model is imported into Ansys software, and the finite element model of heavy crane boom is established by assigning attributes and meshing. Thirdly, the crane boom priority model is constrained and loaded, and the static simulation is carried out. Finally, the simulation results and theoretical results are compared and analyzed to verify the accuracy of the model (SINGH B, et.al, 2011; TOMASZ G, et.al, 2011).
{"title":"Finite Element Model Establishment and Strength Analysis of Crane Boom","authors":"Linyan Zhang, Honglian Zhang, Changguo Lu","doi":"10.5220/0008850001920196","DOIUrl":"https://doi.org/10.5220/0008850001920196","url":null,"abstract":": This paper is devoted to the strength analysis of crane boom with Ansys software. The results of strength analysis and theoretical calculation are compared and analyzed, and a method of using software to analyze the strength of crane boom is discussed. Firstly, using SolidWorks software, the three-dimensional model of each jib of the main arm of heavy crane is established by means of shell pulling, which is saved in x-t format. Secondly, the three-dimensional model is imported into Ansys software, and the finite element model of heavy crane boom is established by assigning attributes and meshing. Thirdly, the crane boom priority model is constrained and loaded, and the static simulation is carried out. Finally, the simulation results and theoretical results are compared and analyzed to verify the accuracy of the model (SINGH B, et.al, 2011; TOMASZ G, et.al, 2011).","PeriodicalId":186406,"journal":{"name":"Proceedings of 5th International Conference on Vehicle, Mechanical and Electrical Engineering","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121052950","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 : 1900-01-01DOI: 10.5220/0008869100850096
Chaoqun Xing
: In recent years, with the increase of the number of external interfaces and electronic control units (ECUs) in vehicles, some unknown attacks about vehicle have emerged, the safety of vehicles has gradually become a top priority for auto manufacturer and vehicle owners. In this paper, we introduce a new attack model for the CAN bus of the vehicle and propose a deep neural network (DNN) based model to detect attacks. We collect normal messages exchanged between the CAN bus by ECUs in real vehicles to construct normal data sets. According to the existing methods, the ability of the attacker is quantified. Different anomaly data sets are constructed based on the strength of the attacker. Finally, the performance of the model is verified by using the normal and abnormal data sets. The detection rate of the proposed method is far more than the existing methods with good robustness and stability.
{"title":"The Detection Method of Abnormal Messages based on Deep Neural Network on the CAN Bus","authors":"Chaoqun Xing","doi":"10.5220/0008869100850096","DOIUrl":"https://doi.org/10.5220/0008869100850096","url":null,"abstract":": In recent years, with the increase of the number of external interfaces and electronic control units (ECUs) in vehicles, some unknown attacks about vehicle have emerged, the safety of vehicles has gradually become a top priority for auto manufacturer and vehicle owners. In this paper, we introduce a new attack model for the CAN bus of the vehicle and propose a deep neural network (DNN) based model to detect attacks. We collect normal messages exchanged between the CAN bus by ECUs in real vehicles to construct normal data sets. According to the existing methods, the ability of the attacker is quantified. Different anomaly data sets are constructed based on the strength of the attacker. Finally, the performance of the model is verified by using the normal and abnormal data sets. The detection rate of the proposed method is far more than the existing methods with good robustness and stability.","PeriodicalId":186406,"journal":{"name":"Proceedings of 5th International Conference on Vehicle, Mechanical and Electrical Engineering","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126511787","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 : 1900-01-01DOI: 10.5220/0008868804210430
Yihang Du, Hu Jin, Lijia Wang, Lei Xue
: In order to reduce the network congestion and data forwarding times, a hierarchical routing protocol based on energy consumption weight clustering scheme is proposed. Firstly, the concept of Energy Consumption Weight (ECW) is introduced. Then the clustering problem is modelled as a complete bipartite graph decomposition problem with maximum weights and a greedy clustering scheme based on ECW is presented to minimize the energy consumption of intra-cluster transmission. Subsequently, the Equal Reward Timeslots based Conjectural Multi-Agent Q-Learning (ERT-CMAQL) is applied to optimize routing and resource allocation in inter-cluster communication. Simulation results show that the proposed hierarchical routing scheme outperforms the flat routing protocol in terms of system energy consumption and packet transmission latency, and it effectively reduces the number of nodes involved in operation and decision-making in the multi-agent learning scheme when the size of network is large.
{"title":"A Hierarchical Routing Protocol based on Energy Consumption Weight Clustering Scheme for Cognitive Radio Networks","authors":"Yihang Du, Hu Jin, Lijia Wang, Lei Xue","doi":"10.5220/0008868804210430","DOIUrl":"https://doi.org/10.5220/0008868804210430","url":null,"abstract":": In order to reduce the network congestion and data forwarding times, a hierarchical routing protocol based on energy consumption weight clustering scheme is proposed. Firstly, the concept of Energy Consumption Weight (ECW) is introduced. Then the clustering problem is modelled as a complete bipartite graph decomposition problem with maximum weights and a greedy clustering scheme based on ECW is presented to minimize the energy consumption of intra-cluster transmission. Subsequently, the Equal Reward Timeslots based Conjectural Multi-Agent Q-Learning (ERT-CMAQL) is applied to optimize routing and resource allocation in inter-cluster communication. Simulation results show that the proposed hierarchical routing scheme outperforms the flat routing protocol in terms of system energy consumption and packet transmission latency, and it effectively reduces the number of nodes involved in operation and decision-making in the multi-agent learning scheme when the size of network is large.","PeriodicalId":186406,"journal":{"name":"Proceedings of 5th International Conference on Vehicle, Mechanical and Electrical Engineering","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126836046","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 : 1900-01-01DOI: 10.5220/0008365302650269
Hongwei Wang, Jun Liu, Z. Tao, Yanling Fu, Junfang Li, Haiqing Xiao, H. Bai
Asbestos is a proven carcinogen. It can able to exist in fibrous form, and be suspended in atmosphere and water for weeks or months, it constantly causing pollution on a large scale. Therefore, the technology of testing for asbestos in products is particularly important, receiving great attention. In this paper, the method of using a scanning electron microscope with a X-ray diffraction is used to identify the asbestos, and this method is simple, reliable and suitable to be widely applied.
{"title":"Determination Method of Asbestos in Electrical and Electronic Products by using a Scanning Electron Microscope with a X-Ray Diffraction","authors":"Hongwei Wang, Jun Liu, Z. Tao, Yanling Fu, Junfang Li, Haiqing Xiao, H. Bai","doi":"10.5220/0008365302650269","DOIUrl":"https://doi.org/10.5220/0008365302650269","url":null,"abstract":"Asbestos is a proven carcinogen. It can able to exist in fibrous form, and be suspended in atmosphere and water for weeks or months, it constantly causing pollution on a large scale. Therefore, the technology of testing for asbestos in products is particularly important, receiving great attention. In this paper, the method of using a scanning electron microscope with a X-ray diffraction is used to identify the asbestos, and this method is simple, reliable and suitable to be widely applied.","PeriodicalId":186406,"journal":{"name":"Proceedings of 5th International Conference on Vehicle, Mechanical and Electrical Engineering","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125445031","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 : 1900-01-01DOI: 10.5220/0008865400500053
Yue Liang, Zhixiao Wang, Zhichun Wang
: At present, the self-test of ABS system cannot detect faults in mechanical parts, such as solenoid valve clamping and hydraulic oil leakage. In an indoor environment, a dynamic monitoring system is built that uses sound signals, vibration signals and pressure signals to detect mechanical parts of the ABS system. The hydraulic oil leakage failure will cause the oil pressure to decrease, fail to meet the working conditions of the hydraulic system, and reduce the working efficiency. In severe cases, the hydraulic system may even fail, which may cause the ABS system to malfunction and cause a traffic accident. The mechanical fault diagnosis of the automotive ABS system is an important way to ensure the safe operation of the vehicle and the good performance of the ABS system .
{"title":"Research on Fault Diagnosis of Hydraulic Oil Leakage in the ABS System of Automobile","authors":"Yue Liang, Zhixiao Wang, Zhichun Wang","doi":"10.5220/0008865400500053","DOIUrl":"https://doi.org/10.5220/0008865400500053","url":null,"abstract":": At present, the self-test of ABS system cannot detect faults in mechanical parts, such as solenoid valve clamping and hydraulic oil leakage. In an indoor environment, a dynamic monitoring system is built that uses sound signals, vibration signals and pressure signals to detect mechanical parts of the ABS system. The hydraulic oil leakage failure will cause the oil pressure to decrease, fail to meet the working conditions of the hydraulic system, and reduce the working efficiency. In severe cases, the hydraulic system may even fail, which may cause the ABS system to malfunction and cause a traffic accident. The mechanical fault diagnosis of the automotive ABS system is an important way to ensure the safe operation of the vehicle and the good performance of the ABS system .","PeriodicalId":186406,"journal":{"name":"Proceedings of 5th International Conference on Vehicle, Mechanical and Electrical Engineering","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124013097","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 : 1900-01-01DOI: 10.5220/0008869804350443
Z. Jintao, Jianyi Kong, X. Wang, Wei Sun
Invoice checking code is one of the key factors affecting invoice reimbursement, but some invoice checking codes are covered by red seal, resulting in lack of information. In order to solve the identification problem of defect invoice check code, in this paper, the color distribution in the check code region and the interaction between color and light are studied, and the scheme of invoice monochrome light reverse transmission is formulated. By analyzing the gray histogram of R, G and B three-channel images, a threechannel weighted graying method for invoice images is proposed. After locating the region by vertical horizontal projection of the check codes, the binarization of the check codes is realized by double threshold segmentation, and the single character segmentation is obtained by vertical projection. Finally, character recognition is carried out by template matching method. The experimental results show that the above method can eliminate the influence of red seals and improve the accuracy of the identification of check codes for defective invoices.
{"title":"Research on Transmission Light and Recognition Algorithms of Invoice Check Code","authors":"Z. Jintao, Jianyi Kong, X. Wang, Wei Sun","doi":"10.5220/0008869804350443","DOIUrl":"https://doi.org/10.5220/0008869804350443","url":null,"abstract":"Invoice checking code is one of the key factors affecting invoice reimbursement, but some invoice checking codes are covered by red seal, resulting in lack of information. In order to solve the identification problem of defect invoice check code, in this paper, the color distribution in the check code region and the interaction between color and light are studied, and the scheme of invoice monochrome light reverse transmission is formulated. By analyzing the gray histogram of R, G and B three-channel images, a threechannel weighted graying method for invoice images is proposed. After locating the region by vertical horizontal projection of the check codes, the binarization of the check codes is realized by double threshold segmentation, and the single character segmentation is obtained by vertical projection. Finally, character recognition is carried out by template matching method. The experimental results show that the above method can eliminate the influence of red seals and improve the accuracy of the identification of check codes for defective invoices.","PeriodicalId":186406,"journal":{"name":"Proceedings of 5th International Conference on Vehicle, Mechanical and Electrical Engineering","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114587691","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：