Urban arterial traffic two-direction green wave intelligent coordination control technique and its application

2011 ◽  
Vol 9 (1) ◽  
pp. 60-68 ◽  
Author(s):  
Xiangjie Kong ◽  
Guojiang Shen ◽  
Feng Xia ◽  
Chuang Lin
Keyword(s):  
Control Technique ◽  
Coordination Control ◽  
Arterial Traffic ◽  
Urban Arterial

Modeling and Simulation of Urban Arterial Traffic Signal Coordinated Control

2014 ◽  
Vol 543-547 ◽  
pp. 1417-1422
Author(s):  
Wei Li ◽  
Xin Bi ◽  
Yun Xia Cao ◽  
Jin Song Du
Keyword(s):  
Traffic Congestion ◽  
Control Method ◽  
Coordinated Control ◽  
Traffic Monitoring ◽  
Traffic Signal ◽  
Traffic Signal Control ◽  
Monitoring And Control ◽  
Total Delay ◽  
Arterial Traffic ◽  
Urban Arterial

Traffic congestion is a major concern for many cities throughout the world. Developing a sophisticated traffic monitoring and control system would result in an effective solution to this problem. In order to reduce traffic delay, a novel urban arterial traffic signal coordinated control method is presented. The total delay of downstream and upstream vehicles is considered and the function describing the relationship between vehicles delay and signal offset among intersections is established. Finally, comparing the performance of traffic signal under method proposed in this paper with the traditional isolated traffic signal control method, the microscopic simulation results show that the method proposed in this paper has better performance in the aspect of reducing the vehicles delay. The offset model is tested in a simulation environment consisting of a core area of three intersections. It can be concluded that the proposed method is much more effective in relieving oversaturation in a network than the isolated intersection control strategy.

Sliding Mode Coordination Control Design for Multiagent Systems

2013 ◽  
Author(s):  
Masood Ghasemi ◽  
Sergey G. Nersesov
Keyword(s):  
Steady State ◽  
Sliding Mode ◽  
Laplacian Matrix ◽  
Graph Laplacian ◽  
Control Technique ◽  
Coordination Control ◽  
Wheeled Mobile Robots ◽  
Control Approach ◽  
Graph Theoretic ◽  
Decentralized Controllers

In this paper, we develop a coordination control technique for a group of agents described by a general class of underactuated dynamics. The objective is for the agents to reach and maintain a desired formation characterized by steady-state distances between the neighboring agents. We use graph theoretic notions to characterize communication topology in the network determined by the information flow directions and captured by the graph Laplacian matrix. Furthermore, using sliding mode control approach, we design decentralized controllers for individual agents that use only data from the neighboring agents which directly communicate their state information to the current agent in order to drive the current agent to the desired steady state. Finally, we show the efficacy of our theoretical results on the example of a system of wheeled mobile robots that reach and maintain the desired formation.

Visual Target-Tracking Using a Formation of Unmanned Aerial Vehicles

2015 ◽  
Author(s):  
Ignacio Mas ◽  
Sebastian Curi ◽  
Christopher Kitts ◽  
Juan I. Giribet
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Visual Target ◽  
Video Camera ◽  
Control Technique ◽  
Test Cases ◽  
Coordination Control ◽  
Robot Operating System ◽  
Aerial Vehicles ◽  
High Level ◽  
Visual Target Tracking

We present a method to visually track and follow a target using a platoon of three unmanned aerial vehicles for the purpose of surveillance, monitoring or escorting. A coordination control technique that enhances specification and monitoring of high level formation parameters such as position, orientation and size is used as a basis for the coordination. A model of a video camera is employed to obtain relative positions with respect to the target of interest. An open-source simulator of Parrot Ar.Drone quadrotors running on the Robot Operating System environment is used to demonstrate the system functionality. Two test cases are presented to illustrate the validity of the approach.

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