An Intelligent Transportation System (ITS) is a new system developed for the betterment of user in traffic and transport management domain area for smart and safe driving. ITS subsystems are Emergency vehicle notifica...An Intelligent Transportation System (ITS) is a new system developed for the betterment of user in traffic and transport management domain area for smart and safe driving. ITS subsystems are Emergency vehicle notification systems, Automatic road enforcement, Collision avoidance systems, Automatic parking, Map database management, etc. Advance Driver Assists System (ADAS) belongs to ITS which provides alert or warning or information to the user during driving. The proposed method uses Gaussian filtering and Median filtering to remove noise in the image. Subsequently image subtraction is achieved by subtracting Median filtered image from Gaussian filtered image. The resultant image is converted to binary image and the regions are analyzed using connected component approach. The prior work on speed bump detection is achieved using sensors which are failed to detect speed bumps that are constructed with small height and the detection rate is affected due to erroneous identification. And the smartphone and accelerometer methodologies are not perfectly suitable for real time scenario due to GPS error, network overload, real-time delay, accuracy and battery running out. The proposed system goes very well for the roads which are constructed with proper painting irrespective of their dimension.展开更多
本文提出一种柔顺车路能量采集减速带(Flexible vehicle-road energy harvesting bump,FVEHB),用于采集车辆在行驶过程中耗散的机械能,为智能交通系统中的微小型机电系统提供可持续的清洁能源,有益于交通系统朝着更加智能化、多功能化...本文提出一种柔顺车路能量采集减速带(Flexible vehicle-road energy harvesting bump,FVEHB),用于采集车辆在行驶过程中耗散的机械能,为智能交通系统中的微小型机电系统提供可持续的清洁能源,有益于交通系统朝着更加智能化、多功能化和绿色化的方向发展.通过柔顺变形及柔性线驱动松弛-张紧过滤车辆滚压激励伴随的强冲击且保留较大的驱动力,柔顺变形及柔性线驱动可以容错制造误差和不确定形变,破解车路能量采集强冲击难题;通过升频机制、双向驱动提高机电转换效率.基于FVEHB的工作原理建立机电耦合动力学模型并进行了实验验证,研究不同激励下FVEHB的电学响应.实验结果表明,激励频率为5Hz时外接负载29Ω的峰值电压和峰值功率分别为5.81V和1.16W.探索了自供能交通环境监测及自供能交通管控等应用,验证了FVEHB有潜力为交通系统中的微小型机电系统提供可持续、便捷的清洁能源.展开更多
文摘An Intelligent Transportation System (ITS) is a new system developed for the betterment of user in traffic and transport management domain area for smart and safe driving. ITS subsystems are Emergency vehicle notification systems, Automatic road enforcement, Collision avoidance systems, Automatic parking, Map database management, etc. Advance Driver Assists System (ADAS) belongs to ITS which provides alert or warning or information to the user during driving. The proposed method uses Gaussian filtering and Median filtering to remove noise in the image. Subsequently image subtraction is achieved by subtracting Median filtered image from Gaussian filtered image. The resultant image is converted to binary image and the regions are analyzed using connected component approach. The prior work on speed bump detection is achieved using sensors which are failed to detect speed bumps that are constructed with small height and the detection rate is affected due to erroneous identification. And the smartphone and accelerometer methodologies are not perfectly suitable for real time scenario due to GPS error, network overload, real-time delay, accuracy and battery running out. The proposed system goes very well for the roads which are constructed with proper painting irrespective of their dimension.
文摘本文提出一种柔顺车路能量采集减速带(Flexible vehicle-road energy harvesting bump,FVEHB),用于采集车辆在行驶过程中耗散的机械能,为智能交通系统中的微小型机电系统提供可持续的清洁能源,有益于交通系统朝着更加智能化、多功能化和绿色化的方向发展.通过柔顺变形及柔性线驱动松弛-张紧过滤车辆滚压激励伴随的强冲击且保留较大的驱动力,柔顺变形及柔性线驱动可以容错制造误差和不确定形变,破解车路能量采集强冲击难题;通过升频机制、双向驱动提高机电转换效率.基于FVEHB的工作原理建立机电耦合动力学模型并进行了实验验证,研究不同激励下FVEHB的电学响应.实验结果表明,激励频率为5Hz时外接负载29Ω的峰值电压和峰值功率分别为5.81V和1.16W.探索了自供能交通环境监测及自供能交通管控等应用,验证了FVEHB有潜力为交通系统中的微小型机电系统提供可持续、便捷的清洁能源.
