新型无线可充电传感器网络中无线充电小车的充电调度算法研究,针对网络中传感器节点发出的充电请求,进行Revised Earliest Deadline First(REDF)无线充电调度优化算法设计。REDF算法综合考虑充电期限和节点距离两个制约因素,使得每一个...新型无线可充电传感器网络中无线充电小车的充电调度算法研究,针对网络中传感器节点发出的充电请求,进行Revised Earliest Deadline First(REDF)无线充电调度优化算法设计。REDF算法综合考虑充电期限和节点距离两个制约因素,使得每一个传感器的充电需求都能得到及时满足,并且无线充电小车还能够在较短的时间内完成充电工作,从而延长无线传感器网络生命周期,建立一个稳定供应能量的无线传感器网络。算法的性能仿真结果表明,REDF算法的性能要优于Earliest Due Date First(EDDF)。展开更多
In order to investigate the enhancement of data privacy by distributing data packets via multiple paths, this paper fommlates a security model and analyzes the privacy problem in mul- tipath scenarios leveraging infor...In order to investigate the enhancement of data privacy by distributing data packets via multiple paths, this paper fommlates a security model and analyzes the privacy problem in mul- tipath scenarios leveraging inforrmtion theoretic concept. Based on proposed model, a privacy function related to the path number is discussed. We heuristically recommend the optin^al path num- ber and analyze the tradeoff among the perform- ance, resource consumption and privacy. For re- ducing the inforlmtion leakage, the data schedule algorithms are also proposed. The analytical model can provide guidelines for the multipath protocol design.展开更多
To increase the passenger transferring efficiency, the bus coordination holding control for transit hubs, which is as an important dynamic dispatching method for improving the service level of transit hubs, was studie...To increase the passenger transferring efficiency, the bus coordination holding control for transit hubs, which is as an important dynamic dispatching method for improving the service level of transit hubs, was studied in the framework of bus coordination dispatching mode. Firstly, the bus coordination holding control flow was studied based on Advanced Public Transportation Systems (APTS) environment. Then a control model was presented to optimize the bus vehicle holding time, and a genetic algorithm was designed as the solving method. In the end, an example was given to illustrate the effectiveness of the control strategy and the algorithm.展开更多
Safety-critical applications such as the independently driving systems of electric vehicle （EV） require a high degree of reliability. The controller area network （CAN） is used extensively in the control sectors. A...Safety-critical applications such as the independently driving systems of electric vehicle （EV） require a high degree of reliability. The controller area network （CAN） is used extensively in the control sectors. A new real-time and reliable scheduling algorithm based on time-triggered scheduler with a focus on the CAN-based distributed control systems for independently driving EV is exploited. A distributed control network model for a dual-wheel independendy driving EV is established. The timing and reliabili- ty analysis in the worst case with the algorithm is used to evaluate the predictability and dependability and the simulation based on the algorithm with CANoe software is designed. The results indicate the algorithm is more predicable and dependable.展开更多
文摘新型无线可充电传感器网络中无线充电小车的充电调度算法研究,针对网络中传感器节点发出的充电请求,进行Revised Earliest Deadline First(REDF)无线充电调度优化算法设计。REDF算法综合考虑充电期限和节点距离两个制约因素,使得每一个传感器的充电需求都能得到及时满足,并且无线充电小车还能够在较短的时间内完成充电工作,从而延长无线传感器网络生命周期,建立一个稳定供应能量的无线传感器网络。算法的性能仿真结果表明,REDF算法的性能要优于Earliest Due Date First(EDDF)。
基金This paper was partially supported by the National Basic Re-search Program of China under Grant No. 2007CB307100 the National Natural Science Foundation of China under Crant No 60972010 the Fundamental Research Funds for the Central U- niversities under Grant No. 2011JBM018.
文摘In order to investigate the enhancement of data privacy by distributing data packets via multiple paths, this paper fommlates a security model and analyzes the privacy problem in mul- tipath scenarios leveraging inforrmtion theoretic concept. Based on proposed model, a privacy function related to the path number is discussed. We heuristically recommend the optin^al path num- ber and analyze the tradeoff among the perform- ance, resource consumption and privacy. For re- ducing the inforlmtion leakage, the data schedule algorithms are also proposed. The analytical model can provide guidelines for the multipath protocol design.
基金Sponsored by the National Natural Science Foundation of China (Grant No. 70601022)the National Basic Research Program of China (Grant No.2006CB705505)
文摘To increase the passenger transferring efficiency, the bus coordination holding control for transit hubs, which is as an important dynamic dispatching method for improving the service level of transit hubs, was studied in the framework of bus coordination dispatching mode. Firstly, the bus coordination holding control flow was studied based on Advanced Public Transportation Systems (APTS) environment. Then a control model was presented to optimize the bus vehicle holding time, and a genetic algorithm was designed as the solving method. In the end, an example was given to illustrate the effectiveness of the control strategy and the algorithm.
基金Supported by the National High Technology Research and Development Programme of China （No. （2008AA11 A146 ）, China Postdoctoral Science Foundation （20090450298）.
文摘Safety-critical applications such as the independently driving systems of electric vehicle （EV） require a high degree of reliability. The controller area network （CAN） is used extensively in the control sectors. A new real-time and reliable scheduling algorithm based on time-triggered scheduler with a focus on the CAN-based distributed control systems for independently driving EV is exploited. A distributed control network model for a dual-wheel independendy driving EV is established. The timing and reliabili- ty analysis in the worst case with the algorithm is used to evaluate the predictability and dependability and the simulation based on the algorithm with CANoe software is designed. The results indicate the algorithm is more predicable and dependable.
