2015 International Conference on Transportation Information and Safety (ICTIS)最新文献_第10页

Simulation and analysis on handling stability of tractor-semitrailer 牵引车-半挂车操纵稳定性仿真分析

2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232187

Ou Chuanjin, Zhou Gang, Liu Xiandong, Shan Yingchun, Duan Bin

引用次数: 2

STPA-based hazard analysis of a complex UAV system in take-off 基于stpa的复杂无人机系统起飞危害分析

2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232133

Jieyu Chen, Yi Lu, Shuguang Zhang, Peng Tang

引用次数: 16

Safe speed of ships passing access channel of port 船舶通过港口通道的安全航速

2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232076

Du Lei, Wen Yuan-qiao, Xiao Chang-shi, Wang Le

引用次数: 2

Theoretical research of power flow on ship shafting systems 船舶轴系动力流的理论研究

2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232177

Kai Chen, Li-Jun Qin, Xincong Zhou, Xuan Zhao

{"title":"Theoretical research of power flow on ship shafting systems","authors":"Kai Chen, Li-Jun Qin, Xincong Zhou, Xuan Zhao","doi":"10.1109/ICTIS.2015.7232177","DOIUrl":"https://doi.org/10.1109/ICTIS.2015.7232177","url":null,"abstract":"Ship shafting system is the indispensable component of a ship power plant. The primary function of a ship shafting system is to carry out energy transfer from marine engine to propeller, transmit axial thrust produced by the rotation of propeller to the hull, and drive the ship ahead. Vibrational power flow combines the effects of force and velocity amplitudes as well as the irrelative phase angle in a single quantity, and thus can better reflect the transmission of vibration energy between various sub-systems of an integrated structure. In this paper, the nonlinear and linear simplified physical model of shaft system is established. The control equations of hull-bearing-oil film-shafting systems are derived. Power flow transfer characteristics of the coupling model are analyzed. Condition monitoring theory of large ship propulsion shafting energy flow distribution is proposed to provide methods and technical supports for optimal design, installation, performance monitoring and maintenance of large ship propulsion shafting, which can also be provided as a reasonable basis for extending the service life of the ship.","PeriodicalId":389628,"journal":{"name":"2015 International Conference on Transportation Information and Safety (ICTIS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131156478","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}

引用次数: 0

A discriminating method of driving anger based on sample entropy of EEG and BVP 基于脑电和脑电位样本熵的驾驶愤怒判别方法

2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232093

Ping Wan, Jianghui Wen, Chaozhong Wu

{"title":"A discriminating method of driving anger based on sample entropy of EEG and BVP","authors":"Ping Wan, Jianghui Wen, Chaozhong Wu","doi":"10.1109/ICTIS.2015.7232093","DOIUrl":"https://doi.org/10.1109/ICTIS.2015.7232093","url":null,"abstract":"“Road rage” has been a concern to traffic safety and management authorities. In order to provide an effective detection of angry driving behavior, it is necessary to provide a method for discriminating angry driving from normal. Thirty professional drivers were recruited for conducting on-road experiments in Wuhan, China. The drivers were required to finish the experiment within 110 minutes and their anger was induced by various stimulating events, e.g., jaywalking and weaving/cut-into of other vehicles. The electroencephalography (EEG) and blood volume pulse (BVP) signals of drivers were collected in the normal and angry states from the field experiments. Statistical analysis shows that the sample entropy of EEG and BVP signals was viable to be used as the index for identifying angry driving. Based on the obtained EEG and BVP sample entropy, a receiver operating characteristic (ROC) curve analysis was introduced to determine the discriminating threshold of driving anger. The results indicate that, when the EEG sample entropy is between (0.2717, 0.6867) and the BVP sample entropy is between (0.4816, 0.7056), the driver is in the transitional period, which means that the driver can become angry easily when facing the stimulating events. When the EEG sample entropy is smaller than 0.5817 and the BVP sample entropy is bigger than 0.6037, the driver is likely to be in an angry state, with an average accuracy of 80.41%. Therefore, it appears reasonable to use the EEG sample entropy of 0.5817 and the BVP sample entropy of 0.6037 as the threshold for identify driving anger. It is believed that the study results can provide a theoretical foundation for developing EEG and BVP sample entropy-based driving anger recognition and warning devices.","PeriodicalId":389628,"journal":{"name":"2015 International Conference on Transportation Information and Safety (ICTIS)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130770822","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}

引用次数: 4

Effect of hull deformation on inherent characteristics of propulsion shafting vibration 船体变形对推进轴系振动固有特性的影响

2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232089

Yuwen Ge, Ping Yang, Wei Jiang

引用次数: 0

Study of inland river maritime radar image Gabor wavelet edge recognition based on direction adaptive 基于方向自适应的内河海事雷达图像Gabor小波边缘识别研究

2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232178

Jiankun Liu, Xie Lei

{"title":"Study of inland river maritime radar image Gabor wavelet edge recognition based on direction adaptive","authors":"Jiankun Liu, Xie Lei","doi":"10.1109/ICTIS.2015.7232178","DOIUrl":"https://doi.org/10.1109/ICTIS.2015.7232178","url":null,"abstract":"To realize automatic extracting edge of bank and bridge from inland marine time radar image, the first step is to get the detection region and realize superposition with the electronic chart display system automatically. Image processing of the radar image should be done firstly, to get radar coastline and the edge of the bridge and location information. The basic way of image processing in the target extraction based on two extraction methods, morphology and color characteristic. Color feature is mainly suitable for color image target. Especially for clear goals, according to color component achieve target extraction. Morphological features for feature extraction. The main method is to realize the target of morphology through the preset or template matching target to get extraction. Maritime radar image without templates, the conventional extraction method is mainly been used in morphology to extract the target. Generally implemented to extract the linear through Hough transform, for the non linear characteristics of target used fractal way. Fractal needs through a large amount of data access to lines of latitude interval. Interval target extraction based on latitude, with large amount of calculation. In this paper, through combination of Hough transform to get the tendency of shoreline bridge information, we use the Gabor wavelet certain tendency feature of shoreline and Bridges to extract the target, in a certain extent, reduce the amount of calculation, and achieve the target of extraction.","PeriodicalId":389628,"journal":{"name":"2015 International Conference on Transportation Information and Safety (ICTIS)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122392337","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}

引用次数: 2

Mountainous city road traffic safety evaluation model based on composite element method 基于复合元法的山地城市道路交通安全评价模型

2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232086

Chai Xue, Ming Wei, Zhu Yaoyao, Bo Sun

引用次数: 3

Theoretical model research on I-V characteristics of solar cell under the marine environment 海洋环境下太阳能电池I-V特性的理论模型研究

2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232163

Yuwei Sun, Xin-ping Yan, C. Yuan

{"title":"Theoretical model research on I-V characteristics of solar cell under the marine environment","authors":"Yuwei Sun, Xin-ping Yan, C. Yuan","doi":"10.1109/ICTIS.2015.7232163","DOIUrl":"https://doi.org/10.1109/ICTIS.2015.7232163","url":null,"abstract":"Solar cell is the key component of photovoltaic system on converting the solar radiation to electrical energy. The environmental factors such as solar irradiation, temperature, humidity and dust can directly affect the power output characteristics of solar cells that applied in the different area. Compared with the terrestrial environment, the marine environment is more severe, and the power output characteristics of solar cell in this environment have not been studied with all environmental factors considered. This study aims to establish an appropriate approach on this issue from three aspects, including classical equation, environmental factors and theoretical model. Firstly, the classical equation of I-V characteristics of solar cell is introduced and the limitation of its computational boundary condition is expressed by taking the real environment into consideration. Then, the environmental factors analysis is mainly focused on the difference between terrestrial environment and marine environment, especially the effect factors that can change I-V characteristic of solar cell. Thirdly, two theoretical models (Energy Conservation Model and Parameter Correlation Model) are respectively established to represent the interrelationship between I-V equation and five feature parameters, such as humidity, wind velocity, liquid immersion, particulate matters and ship movement. In the energy conservation model, a control surface is introduced to explain the heat convection, heat conduction and heat radiation process within a typical solar cell module. Based on the universality of cause-effect connection, a decoupling function is introduced in the parameter correlation model for representing the relationship between multiply environmental factors and cell temperature during the photovoltaic conversion process. These two models can be definitely used to study the efficiency and reliability problem of solar cell that applied in other severe environments.","PeriodicalId":389628,"journal":{"name":"2015 International Conference on Transportation Information and Safety (ICTIS)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122717374","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}

引用次数: 1

A new automatic obstacle detection method based on selective updating of Gaussian mixture model 一种基于高斯混合模型选择性更新的障碍物自动检测方法

2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232068

J. Lan, Dongyang Yu, Yaoliang Jiang

引用次数: 1