Research Projects
April 21, 2021
Simulation of 2D Football Team to Participate in The World League of Robocop
Payame Nour University (PNU)
July 2012
- Researcher: Iman Asari Moghadam
- Supervisor: Ali Ghavami
- Abstract: In this thesis incremental development, design and implementation of a soccer simulation team along with its prominent aspects are reviewed. This team is a soccer simulation team consists of 11 autonomous agents who interact together in a physical simulated environment called soccer server.
Soccer Server provides a fully distributed and real-time system in such a way that in which each of the agents must cooperate with other teammates in order to achieve the ultimate goal of winning the game.
This simulator system models many aspects and properties of a real environment such as: Noise in movement of objects, Noise in sensors and actuators, limited physical abilities, and restricted communication. Our main contributions in this thesis include defining the architecture of an agent in a multi-layer model, synchronizing an agent with the simulator, new localization method for the agent, analysis and development of agent’s world model using partial sensation of the environment, tactics and strategies used in defending against opponent’s penetration and attacking to its defending lines, and finally focusing on algorithms to break the defiance line of the opponent and scoring a goal.
Traffic Monitoring Based on Wireless Sensor Networks
Payame Nour University (PNU)
August 2012
- Researcher: Maryam Heydari Panah
- Supervisor: Ali Ghavami
- Abstract: Besides increasing traffic, has become growing problem in the world and in many countries The question is how can find the right solution to fix this problem in addition to using the old solutions like building more bridges and roads. The answer is using the intelligent transportation systems (ITS) in wireless sensor networks. These networks are used a lot because of their small, inexpensive and intelligent equipment. Wireless sensor network plays a significant role in today’s world.
In this study, we first compare the traditional techniques of traffic control and prove that the use of wireless sensor networks is the best solution. Then introduce the various aspects, applications and challenges in wireless sensor networks. Moreover, we discuss the use of these networks in traffic monitoring systems and points like vehicle detectors, prediction algorithms and architectures for integrated control of traffic based on WSN.
The next section introduces the wireless sensor network architecture that enables network to data processing and wireless communication and identify the strengths and weaknesses of them.We show how WSN applications in intelligent transportation systems, improve performance and results. Then we describe mobile sinks querying in a wireless sensor network and refer to the problem of network load balancing. We talk about energy management and mobility management strategies too. Then introduce an end-to-end WSN system and describe its structure, function and applications .In the following we show the performance of a wireless sensor network that uses the camera in the traffic control and explain its methods, limitations and implementation.
Finally, we offer an important and widely used system in traffic control, which monitor the traffic Light Flow intelligently. This system Caused a great revolution in the field of traffic monitoring in big cities.
Positioning of Wireless Local Area Networks
Payame Nour University (PNU)
September 2012
- Researcher: Mona Zamani Siahkali
- Supervisor: Ali Ghavami
- Abstract: Improvement of mobile devices for users, creation of vast telecommunication infrastructure for wireless communication, and expansion of satellite networks has made creation of several positioning systems for mobile users, especially in open spaces possible. Unfortunately, many of such systems do not have a good performance in closed environments, and different solutions should be presented for such environments. Upon the increasing need for usage of such systems in closed environments, local wireless networks using IEEE802.11B standard has had much progress and expansion. The ever-increasing need for such systems in closed environments has required introduction of positioning techniques for closed environments; one such technique, which has attracted much attention due to its unique attributes, and has much application now, is local fingerprinting, in which radio signals play a significant role. Among radio signal parameters, the power of the received signal is the most important, as measuring signal power is part of the operational method of wireless equipment's, especially Wi-Fi. In order to implement this technique, first the specified parameter, which is usually defined as a matrix network, is measured in regular and pre-specified situations. This combination is called radio map. Different algorithms are proposed for estimation of the relationship of defined locations, and the parameter of the measured signal, based on the radio map.
In this thesis, a new algorithm for positioning, based on this technique in an environment with local wireless network infrastructure, using radial circuit is studied. After introduction of mobile commerce applications, the status of positioning, and the criteria influential in pre-defined positioning will be studied. One such application is mobile advertisement. And a special type of it, i.e. location-aware mobile advertising, shall be studied as a case study, and the general measures required for running this application in two states of “Push” and “Pull” shall be presented.
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