- Railway Systems and Energy Efficiency
- Transportation Planning and Optimization
- Railway Engineering and Dynamics
- Petri Nets in System Modeling
- Real-Time Systems Scheduling
- Traffic Prediction and Management Techniques
- Electrical Contact Performance and Analysis
- Transportation and Mobility Innovations
- Flexible and Reconfigurable Manufacturing Systems
- Advanced Photocatalysis Techniques
- Transportation Systems and Safety
- Manufacturing Process and Optimization
- Mobile Agent-Based Network Management
- Piezoelectric Actuators and Control
- Urban Transport and Accessibility
- Cellular Mechanics and Interactions
- Force Microscopy Techniques and Applications
- Electronic and Structural Properties of Oxides
- Advanced Nanomaterials in Catalysis
- Modular Robots and Swarm Intelligence
- Formal Methods in Verification
Beijing Jiaotong University
2020-2024
Ministry of Public Security of the People's Republic of China
2022
Henan University
2022
South China University of Technology
2021
Delft University of Technology
2019
University of Toronto
2000-2003
University of New Brunswick
2000
In big cities, the metro lines usually face great pressure caused by huge passengers demand, especially during peak hours. When disruptions occur, accumulate quickly at stations. It is of importance for dispatchers to take passenger flow control into consideration traffic management ensure passengers' safety and maintain their satisfaction. This paper proposes an integrated disruption model, which incorporates train rescheduling control. this services can be short-turned, cancelled rerouted,...
In practice, the operation of high-speed trains is often affected by adverse weather conditions or equipment failures, which result in delays and even cancellations train services. this article, a novel two-layer hierarchical model predictive control (MPC) proposed for on-line railway delay management minimizing cancellations. The upper layer manages global objectives operation, that is, total providing guidance speed lower layer. are to satisfy running time requirements given save energy at...
Within the metro networks of agglomerations all over world, circle lines play important roles with respect to network connectivity and passenger transfer. The train rescheduling problem a line under small disturbances is considered in this paper, including response rules for inserting standby trains, using storage tracks, holding. A mixed-integer nonlinear programming model proposed, aiming minimize timetable deviations, headway variations, number cancelled stops, rolling stocks, which then...
Urban railway transit systems in big cities operate at high capacity and represent the main arteries of city transport networks. In current operations, infrastructure failures occur occasionally causing severe disruptions. this research, we propose a novel integrated disruption management methodology for automatically rescheduling trains controlling passenger flows given disruption. Our framework incorporates train traffic model together with adjusting passengers aims to minimize total delay...
The potential of flexible-manufacturing workcells (FMCs) to produce a family parts in many possible orders operations and choices different machines is advantageous. Despite intensive research on the theoretical control discrete-event systems, however, current techniques can still only be used for supervisory simple cells. In this article, novel modeling synthesis technique presented FMCs that allow part-routing flexibility. Our proposed methodology combines extended Moore automata...
Due to the increase of passenger demand, urban rail transit lines are faced with significant challenges. To enhance transport capacity, researchers have introduced concept virtual coupling, which replaces physical train connections wireless communication. This innovation allows trains couple and decouple during their operation, offering advantages in capacity. The coupling technology not only reduces headway, but also facilitates flexible decoupling operations adapt varying flow. While there...
The paper presents a novel and generic PC/PLC-based software/hardware architecture for the control of flexible manufacturing workcells. proposed implementation methodology is based on utilization any one available formal discrete-event-system theories in conjunction with state-of-the-art industrial programmable-logic controllers (PLCs). specific theory used combination extended Moore automata Ramadge-Wonham that has been developed by our research group. modular software MS-Windows...
In case of a metro disruption, the collaborative optimization for train rescheduling combined with passenger flow demand is quite essential since not adequately considered. To handle this gap, study first establishes two separated models, i.e. model and model. On side, short-turnings, fully cancellation or partial are taken into account to construct disrupted timetable aims minimizing delays deviations from original timetable. time-dependent OD incorporated passenger's arrival, loading...
With the expansion of metro networks, it is common that a line equipped with multiple depots. The operation costs rail operators and passenger satisfaction are highly dependent on train timetables rolling stock circulation plans, which closely related to each other. Therefore, important investigate integrated timetabling planning problem for lines A mixed integer linear programming formulation proposed generate plans simultaneously depots, in capacity depot balances between depots...
Lightly-damped dynamics of a flexure-based mechanism will tend to largely deteriorate the broadband control performance if its hysteresis nonlinearity has been compensated. This paper developed novel damped piezo-driven decoupled XYZ nanopositioning stage, which consists three orthogonal parallel kinematic subchains, in each subchain translational pair using bridge-type actuator and two Cardan joints orthogonal- axis flexure hinges. Especially, we add inserts into joint, as their shearing...
People in major cities are increasingly choosing urban rail transit as their primary mode of public transportation. Excessive passengers on trains and platforms represent a high risk low comfort for passengers, so it is critical to implement passenger flow control strategy improve safety platforms. This study proposes collaborative optimization train timetable formation plan combined with strategy. To characterize the problem mathematically, mixed-integer nonlinear programming model...
The transport capacity of the railway system does not match increasing passenger demand, which calls for enhancements as urban connectedness rises. A new signaling technique, i.e., virtual coupling, has potential to increase capacity. This paper aims tackle difficulties associated with preserving stability and robustness a virtually coupled train set (VCTS) during disturbed conditions. Based on coupling relationship communication architecture, dynamic model state-space equations are...
Maintaining high operation performance and at the same time having transporting capacity is a challenge for urban rail lines during unexpected disruption. In this paper, we focus on adjusting train timetable in case of complete blockage with fixed disruption length. A mixed integrated linear rescheduling model, where short-turning, cancelling adjustable dwell running are included, proposed to minimize total delays services cancellation under different dispatcher's reaction towards To...