scholarly journals Investigation of Control Method for Connected-Automated Vehicle to Multiplex Dedicated Bus Lane

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Wei-Jie Xiu ◽  
Li Wang ◽  
Meng-Yang Guo ◽  
Li-Li Zhang ◽  
Qi Zhao
Keyword(s):  
Control Method ◽  
Travel Speed ◽  
Control Methods ◽  
Real Time Control ◽  
Average Delay ◽  
Microscopic Traffic Simulation ◽  
Automated Vehicle ◽  
Time Control ◽  
Signal Light ◽  
Bus Lane

Dedicated bus lanes (DBLs) have been widely utilized to ensure public transport priority. To improve overall road efficiency, various control methods of multiplexing DBL are developed and discussed. In this study, we focus on the control method which is based on the connected-automated vehicle (CAV) technology, and the proposed method is validated by using microscopic traffic simulation. The simulation results show that two proposed control methods of multiplexing DBL can reduce the average delay and the average number of stops and increase the travel speed. In comparison, the real-time control method based on the CAV technology offers better effects than the improved signal light control method.

Theory of Temperature Dynamic Control in Arch Dams and its Application

2012 ◽  
Vol 594-597 ◽  
pp. 738-741 ◽  
Author(s):  
Yin Duan ◽  
Xing Hong Liu ◽  
Xiao Lin Chang
Keyword(s):  
Real Time ◽  
Temperature Control ◽  
Control Method ◽  
Dynamic Control ◽  
Arch Dam ◽  
Real Time Control ◽  
New Techniques ◽  
Time Dynamic ◽  
Arch Dams ◽  
Time Control

Main factors of the temperature control and crack prevention in arch dams are summarized. The Space-time Dynamic Control method in pipe cooling process and the Temperature Real-time Control and Decision Database System are introduced to help for temperature real-time control and rapid analysis. Successful application of these new techniques in the construction of Dagangshan arch dam indicates that the proposed method are of significant effectiveness on the temperature control and crack prevention, and have good application prospect in practical project.

Research on the Rehabilitation Robot Control Methods for Analysis of Lower Limb Kinetics during Sit to Stand Process

2015 ◽  
Vol 742 ◽  
pp. 535-539
Author(s):  
Kun Liu ◽  
Jian Chen Zhao ◽  
En Guo Cao ◽  
Xuan Han
Keyword(s):  
Lower Limb ◽  
Control Method ◽  
Center Of Pressure ◽  
Rehabilitation Robot ◽  
Control Methods ◽  
Real Time Control ◽  
Joint Moments ◽  
Kinetics Parameters ◽  
Movement Trajectories ◽  
Sit To Stand

A new method for analyzing lower limb kinetics during sit to stand process is presented, and a trajectory control method (TCM) and an impedance control method (ICM) for a rehabilitation robot are developed. During the sit to stand process (SSP), body segment rotational angles, movement trajectories, ground reaction forces (GRF), center of pressure (COP) and rope tensile forces are measured by the robot sensor system, and the joint moments of ankle, knee and hip are calculated in real-time control program. Test experiments were performed on six volunteers. The experimental results validate the theory that the control methods can assure the accomplishment of the sit to stand process in comfortable postures, and improve the condition of joint moments. The control methods are suitable for self-supported home training, and can be applied to assess kinetics parameters during the sit to stand process and improve the rehabilitation of patients.

Research on Multi-Segment and Multi-Class Seat Inventory Control with Overbooking

2013 ◽  
Vol 273 ◽  
pp. 34-38
Author(s):  
Di Wang ◽  
Chang You Liu
Keyword(s):  
Inventory Control ◽  
Control Method ◽  
Integrated Control ◽  
Profit Maximization ◽  
Optimal Decision ◽  
Real Time Control ◽  
Single Class ◽  
Ticket Sales ◽  
Time Control ◽  
Seat Inventory Control

In order to achieve a real-time control method and technical support for airlines, the integrated modeling issue of airlines about seat inventory control and overbooking has been researched in this paper. And the integrated control static model has been established by the stochastic programming method, based on ticket sales process to be simulated as a queue process and profit maximization to be objective function. So the problem is decomposed into a plurality of single-segment and single-class seat inventory control problem. Furthermore, the optimal decision-making equation of limiting reservation for each class has been deduced from the model. Finally, the validity of model and calculation method are shown by the full analysis of practical application of the model.

Joint Self-Tuning With Cartesian Setpoints

1986 ◽  
Vol 108 (2) ◽  
pp. 146-150 ◽  
Author(s):  
P. G. Backes ◽  
G. G. Leininger ◽  
Chun-Hsien Chung
Keyword(s):  
Real Time ◽  
Control Method ◽  
Hybrid Control ◽  
Pole Placement ◽  
Real Time Control ◽  
Time Control ◽  
Self Tuning ◽  
Cause Of Error ◽  
Time Position ◽  
Manipulator Control

A joint coordinate self-tuning manipulator control method is presented which uses Cartesian setpoints. The method is capable of both position and hybrid control. Position and force errors are transformed from Cartesian coordinates to position and force errors at the joints. The position and force errors at each joint are combined into one hybrid error that is eliminated using pole-placement self-tuning. Real time position and hybrid control results are given. No prior knowledge of manipulator or load dynamics is required and real time control results show that the goal of consistent control with changing load dynamics is achieved. The major cause of error in position and hybrid control is the large friction effects in the joints.

SPC-Based Real-Time Control Method for CNC Machining Quality

2010 ◽  
Vol 42 ◽  
pp. 263-267
Author(s):  
Xin Long Kang ◽  
Dong Man Yu ◽  
Xue Ling Yang ◽  
Di Wang
Keyword(s):  
Real Time ◽  
High Precision ◽  
Control Method ◽  
Cnc Machining ◽  
Machining Process ◽  
Real Time Control ◽  
The Real ◽  
Machining Quality ◽  
Time Control ◽  
Process System

This paper presents the methods and applications for the real-time control of CNC machining process quality in detail and clarifies the objectives of SPC for CNC machining, in order to enhance the understanding of the factors that cause instability to process system. Also, this paper adopts the methods and procedures for SPC to effectively serve the production of high-precision products for enterprises, in order to meet customers’ requirements and expectations.

Real-Time Control and Data Exchange Method in Software CNC System Based on PC

2012 ◽  
Vol 241-244 ◽  
pp. 1392-1395
Author(s):  
Kun Qi Wang ◽  
Jing Wei Yang ◽  
Li Qun Lei
Keyword(s):  
Real Time ◽  
Data Exchange ◽  
Control Method ◽  
Interpolation Operator ◽  
Cnc System ◽  
Real Time Control ◽  
Exchange Method ◽  
Time Control ◽  
System Clock ◽  
Application Module

A new real-time control method for software CNC based on PC is proposed, and the data exchange methods are given. Both external and system clock interrupt are adopted as interpolation cycle to make up software CNC on PC. The data between the front procedures, interpolation module, and background procedures, application module, is exchanged by WDM. The method is verified in experiment, and the resolves show that the speed control and the interpolation operator are right, and whole software CNC is significantly improved.

Exact and Linearized Neural Predictive Control: A Turbocharged SI Engine Example

2007 ◽  
Vol 129 (4) ◽  
pp. 527-533 ◽  
Author(s):  
G. Colin ◽  
Y. Chamaillard ◽  
G. Bloch ◽  
A. Charlet
Keyword(s):  
Real Time ◽  
Linear Systems ◽  
Predictive Control ◽  
Control Method ◽  
Simulation Models ◽  
Real Time Control ◽  
Time Control ◽  
Non Linear ◽  
Non Linear Systems ◽  
Neural Predictive Control

This paper describes a real-time control method for non-linear systems based on model predictive control. The model used for the prediction is a neural network because of its ability to represent non-linear systems, its ability to be differentiated, and its simplicity of use. The feasibility and the performance of the method, based on on-line linearization, are demonstrated on a turbocharged spark-ignited engine application, where the simulation models used are very accurate and complex. The results, first in simulation and then on a test bench, show the implementation of the proposed control scheme in real time.

Construction Schedule Real-Time Control Coupling Construction Quality in Large Scale Underground Powerhouse

2012 ◽  
Vol 256-259 ◽  
pp. 1320-1324
Author(s):  
Da Wei Tong
Keyword(s):  
Real Time ◽  
Control Method ◽  
Organization Design ◽  
Good Effect ◽  
Real Time Control ◽  
Construction Quality ◽  
Underground Powerhouse ◽  
The Real ◽  
Time Control ◽  
Construction Schedule

Underground powerhouse of hydraulic and hydroelectric engineering is a large cavern group structure. Construction process of underground powerhouse is a complex system, whose construction schedule is associated with construction quality. It is necessary to arrange construction schedule adopting construction simulation method and combining with tunnel stability analysis, which can advance the level of construction organization design. By using real-time control theory and methodology, the real-time control model of construction schedule and quality was established, considering construction procedure, geological conditions and resource limitation. The real-time control method of construction schedule and quality was presented, and the practical control procedure was studied. Good effect is obtained through the application of the real-time control method for construction schedule and quality in one real underground powerhouse.

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