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This paper proposes a novel nonlinear controller for path following control of underactuated autonomous underwater vehicle (AUV) in the horizon plane. In order to overcome the drawback of dependence on the accurate dynamic model that are present in a number of path following control strategies described in the literature, the unknown environmental disturbances and unmodeled dynamics are viewed as...
This paper proposes an intelligent vehicular telematics platform, which consists of an in-vehicle device connecting the CAN bus with an ODB-II bridge construction, and a mobile application software on smartphone for vehicle driving safety. The proposed platform can real-time monitor vehicular information (such as vehicle engine speed, oxygen, speed per hour, and water temperature), which can efficiently...
This paper presents a continuum model of traffic flow on a road network with taking into account the diffusion effect. The model is described by a nonlinear convection-dominant diffusion equation, which can be solved using numerical methods. The model is applied to analyzing the traffic flow along a unidirectional highway system with or without junctions. Three numerical examples are provided to illustrate...
The larger and longer body of multi-axle vehicle makes it difficult to steer as flexibly as usual. For this reason, a novel steering mode which combines traditional Ackerman steering and Skid steering method is proposed and the resulted turning characteristics is studied in this research. First, the research methods are identified by means of building and analysing a vehicle dynamical model. Then,...
For real-time surveillance and safety applications in intelligent transportation systems, high-speed processing for image enhancement is necessary and must be considered. In this paper, we propose a fast and efficient illumination adjustment algorithm that is suitable for low-cost very large scale integration implementation. Experimental results show that the proposed method requires the least number...
Stop-controlled intersection represent potential hazards because of the priority of movement on the main road. The crossing and turning maneuvers that occur at intersections create opportunities for vehicle-vehicle, vehicle-pedestrian, and vehicle-bicycle conflicts, which may result in traffic crashes. Widespread application of low-cost, proven countermeasures can reduce the number of collisions....
In order to evaluate the impact of urbanization on carbon cycle, we selected the Beijing city as the study area to estimate CO2 emission both from anthropogenic activity and natural processes. The spatial pattern of annual CO2 emission in 1992 and 2005 in Beijing city was estimated by using the socio-economic statistical data, remote sensing data and GIS-based approach. The main factors include transport,...
Vehicular Network is becoming increasingly popular in recent years, in which vehicles constitute a wireless mobile network. Vehicle-to-Vehicle (V2V) and Vehicle-to-Infrastructure (V2I) are two different modes of communication in a vehicular network. Some measurement studies have previously been undertaken to understand the feasibility of using WiFi for V2V and V2I communication. Recently WiMAX is...
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