The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper proposes a hybrid control approach to task priority based mobile manipulation. More specifically, it uses a hybrid systems framework to address the problem of end-effector path following for a manipulator attached to a nonholonomic mobile platform where the joints are subject to constraints and the inputs signals are required to be bounded. A switched control strategy allows the robot to...
This paper addresses an optimal formation control of multiple two-wheeled mobile vehicles with the help of model predictive control. An optimal formation is automatically determined among pre-defined formations in real time according to the environment with the help of model predictive control. Experimental results are demonstrated to verify the effectiveness of the proposed approach.
This paper primarily deals with behavior-based control strategy for an autonomous agent to achieve local goal while tracking a desired path/trajectory. The behavior-based control approach addresses multiple control frameworks, which are switched depending on the circumstances, instead of using a uniform control framework. The need to pursue local goals may arise while an autonomous agent e.g., an...
This paper explores direct phone-to-phone communication (via WiFi interface) among vehicles to support mobile sensing applications. Direct communication among drivers' phones is important in improving data collection efficiency and sharing participatory sensing information in an inexpensive manner. We design a practical and optimized communication mechanism for direct phone-to-phone data transfer...
This paper describes the design of a modular battery management system for electric off-road vehicles, where lithiumion batteries are expected to be widely used. A massive electrification of off-road vehicles can be enabled by the availability of a standard battery module, provided with an effective management unit. The design and some preliminary experimental results of the module management unit...
Vehicular Ad hoc Networks(VANETs) enable plenty of important applications for vehicles, such as accident prevention and traffic jam avoidance. However, VANETs can hardly provide reliable connectivity between vehicles, which makes data dissemination of the aforementioned applications extremely difficult. Compared with VANETs, 3GPP cellular networks(e.g., LTE), offer much more reliable connectivity...
In the paper, the DSRC/WAVE (Dedicated Short Range Communication/Wireless Access in Vehicular Environments) systems are applied to control the lamps along a street or highway so that the safety of driving and efficiency of power consumption can be addressed at the same time. It would consume a lot of energy if there are few mobile vehicles passing through the streetlamps in the late night and apply...
In future, mobile multimedia services will become popular as widely as the use of the cellular phone today. It makes the bandwidth required for each multimedia service increase rapidly, and such kind of communication will be dominant since the development of machine-machine communications for human interactivity in the multimedia age. For this demand, the micro-cell will become a major role in substitution...
Recent research studies on green cellular networking indicate that most of the traffic is serviced by a few cell sites while the rest of the cells remain under-utilized, contributing to significant energy consumption levels. Previous proposals suggest turning off Base Stations (BSs) during low utilization periods to save energy by allowing neighboring cells to increase their coverage to provide the...
After analyzing GPSR under traffic scenarios, we find its poor performance dues to extremely uneven distribution of vehicles. Considering the characteristics of the traffic scenario, we propose Improved GPSR using an electronic map. The simulation results show that Improved GPSR performs better than GPSR on Packet Delivery Ratio. Furthermore, we study the effect of stations switching on Packet Delivery...
The transportation domain brings particular needs dealing with the specificities of the environment (highly mobile, distributed, unstable network connection, ...). In this paper, we propose a first step in providing a dynamic adaptable framework responding to the non-functional needs of transportation's applicative services. Among the most important services we can name positioning, time or communication...
The use of dynamic spectrum access techniques has a great potential in future inter-vehicle communications, while it must cope with (i) temporal and spatial spectrum utilization changes introduced by the primary and secondary users (environmental changes); and (ii) topology changes due to movement of vehicles (spatial movement). In the present paper, along this line, dynamic per-hop channel switching...
This paper presents a concept for a satellite-based solution for assured communications for mobile public safety groups, law enforcement vehicles and other first responders. System connectivity is assured under normal operating conditions through a combination of wireless base stations and, in areas with minimal or no existing terrestrial communications infrastructure or following a disaster, satellite...
This paper presents an architecture to support fast prototyping of augmented reality systems, based on virtual reality. The architecture defines simulation services separated from other aspects of the system. These services support incremental evolution of simulated prototypes into nonsimulated systems. Focus is also placed on user interaction,through the definition of an interaction architecture...
This paper discusses the work accomplished for the development of a new mobile robotic platform for the Hydro-Quebecpsilas underground power distribution lines. After an overview of few past robotic systems elaborated for the distribution networks, this article details the systems of the mobile robotic platform which seems to be the first in the literature dedicated to the underground distribution...
This paper describes how we can use existing mobile technology to track the vehicle. Here the embedded system along with the mobile is used to prevent the vehicle from being stolen and also if the vehicle is stolen then its location can be tracked. Mobile technology is the fastest growing communication mode. In todaypsilas mobile technology we all are acquainted with short message service (SMS). In...
Video-streaming can now be offered on third-generation (3G) mobile networks. Most research efforts have focused on video download. This paper presents a detailed study of challenges faced for successfully deploying applications requiring life video upload. Both subjective and objective qualities as well as the effects of mobility are analyzed on real 3G networks. Consequently, video profiles are identified...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.