An integrated approach for new vehicle program launching and associated manufacturing systems deployment,is presented in this paper.To overcome weaknesses and difficulties in the traditional production distribution (P...An integrated approach for new vehicle program launching and associated manufacturing systems deployment,is presented in this paper.To overcome weaknesses and difficulties in the traditional production distribution (PD) network models,the case based reasoning is first applied to generate an initial network configuration based on the collected localization case base.Secondly,and economic model of performance evaluation of existing manufacturing facilities is developed to identify the advantages in location sensitive production factors for various components in order to take full advantages of local and global production factors.Finally,a modified PD model is developed to optimize the overall network deployment.Various deployment scenarios,such as minimizing manufacturing cost,maximizing profitability or promotion of early market entry,can be analyzed and testified.A typical case study of launching a new vehicle program in China is also presented to demonstrate the effectiveness and feasibility of the proposed approach.展开更多
Traffic monitoring is of major importance for enforcing traffic management policies.To accomplish this task,the detection of vehicle can be achieved by exploiting image analysis techniques.In this paper,a solution is ...Traffic monitoring is of major importance for enforcing traffic management policies.To accomplish this task,the detection of vehicle can be achieved by exploiting image analysis techniques.In this paper,a solution is presented to obtain various traffic parameters through vehicular video detection system(VVDS).VVDS exploits the algorithm based on virtual loops to detect moving vehicle in real time.This algorithm uses the background differencing method,and vehicles can be detected through luminance difference of pixels between background image and current image.Furthermore a novel technology named as spatio-temporal image sequences analysis is applied to background differencing to improve detection accuracy.Then a hardware implementation of a digital signal processing (DSP) based board is described in detail and the board can simultaneously process four-channel video from different cameras. The benefit of usage of DSP is that images of a roadway can be processed at frame rate due to DSP′s high performance.In the end,VVDS is tested on real-world scenes and experiment results show that the system is both fast and robust to the surveillance of transportation.展开更多
his paper studies the vehicle CAN bus control technology, and analyzes the control system of automobile based on CAN technology. This paper focus on the design of single-chip microcomputer STC89C52 be as the platform ...his paper studies the vehicle CAN bus control technology, and analyzes the control system of automobile based on CAN technology. This paper focus on the design of single-chip microcomputer STC89C52 be as the platform to achieve the design of CAN bus, introduce in detail the structure and working principle of SJA1000 and PCA82C250, and on basis of it, we design the CAN bus interface, and gives the hardware circuit design and software process of SJA1000 initialization, receiving, sending message. The system can give some subsequent reference for CAN bus application.展开更多
基金Supported by Ford- China Research and Development Foundation(971 551 1 )
文摘An integrated approach for new vehicle program launching and associated manufacturing systems deployment,is presented in this paper.To overcome weaknesses and difficulties in the traditional production distribution (PD) network models,the case based reasoning is first applied to generate an initial network configuration based on the collected localization case base.Secondly,and economic model of performance evaluation of existing manufacturing facilities is developed to identify the advantages in location sensitive production factors for various components in order to take full advantages of local and global production factors.Finally,a modified PD model is developed to optimize the overall network deployment.Various deployment scenarios,such as minimizing manufacturing cost,maximizing profitability or promotion of early market entry,can be analyzed and testified.A typical case study of launching a new vehicle program in China is also presented to demonstrate the effectiveness and feasibility of the proposed approach.
文摘Traffic monitoring is of major importance for enforcing traffic management policies.To accomplish this task,the detection of vehicle can be achieved by exploiting image analysis techniques.In this paper,a solution is presented to obtain various traffic parameters through vehicular video detection system(VVDS).VVDS exploits the algorithm based on virtual loops to detect moving vehicle in real time.This algorithm uses the background differencing method,and vehicles can be detected through luminance difference of pixels between background image and current image.Furthermore a novel technology named as spatio-temporal image sequences analysis is applied to background differencing to improve detection accuracy.Then a hardware implementation of a digital signal processing (DSP) based board is described in detail and the board can simultaneously process four-channel video from different cameras. The benefit of usage of DSP is that images of a roadway can be processed at frame rate due to DSP′s high performance.In the end,VVDS is tested on real-world scenes and experiment results show that the system is both fast and robust to the surveillance of transportation.
文摘his paper studies the vehicle CAN bus control technology, and analyzes the control system of automobile based on CAN technology. This paper focus on the design of single-chip microcomputer STC89C52 be as the platform to achieve the design of CAN bus, introduce in detail the structure and working principle of SJA1000 and PCA82C250, and on basis of it, we design the CAN bus interface, and gives the hardware circuit design and software process of SJA1000 initialization, receiving, sending message. The system can give some subsequent reference for CAN bus application.
