iosr-JEEE   International Conference on Emerging Trends in Engineering & Management

Abstract: In recent years, there has been an increasing interest within the robotics community in investigating whether Radio Frequency Identification (RFID) technology can be utilized to solve localization and mapping problems in the context of mobile robots. Passive RFID is an emerging technology allowing identification of devices, called tags, when interrogated by RFID readers. The Ultra High Frequency (UHF) RFID readers with identical emission configuration attached to a mobile robot to identify a reference RFID tag, using UHF readers it is possible to read multiple tags at a time. The particular product number can be entered into the mobile robot from the control room itself using Zigbee. By utilizing the Received Signal Strength Indicator (RSSI) obtained by the readers from the reference RFID tag, the precise position of the mobile robot can be obtained. The obstacle in the moving path of the mobile robot can be detected using obstacle sensors and redirects its path, by indicating an alarm signal. This method can be used in real industry environments such as complex storage warehouses where many different goods are dispersed throughout a wide area.
Keywords: Indoor positioning system (IPS), Localization, Mobile robot, Ultra high frequency (UHF) RFID reader

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Abstract: Current solar power technology has little chance to compete with fossil fuels or large electric grids. Today's solar cells are simply not efficient enough and are currently too expensive to manufacture for large-scale electricity generation. However, potential advancements in nanotechnology may open the door to the production of cheaper and slightly more efficient solar cells. Nanotechnology might be able to increase the efficiency of solar cells, but the most promising application of nanotechnology is the reduction of manufacturing cost. The basic concept is that Plastic is made using nanoscale titanium particles coated in photovoltaic dyes, which generate electricity when they absorb light. These new plastic solar cells utilize tiny nanorods dispersed with in a polymer. The nanorods behave as wires because when they absorb light of a specific wavelength they generate electrons. These electrons flow through the nanorods until they reach the aluminum electrode where they are combined to form a current and are used as electricity. Another potential feature of these solar cells is that the nanorods could be 'tuned' to absorb various wavelengths of light. This could significantly increase the efficiency of the solar cell because more of the incident light could be utilized.
Keywords: solar nanotechnology, nanoscale titanium, nanowires, inexpensive, increased efficiency.

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Abstract: This paper depicts model and simulation of a renewable energy based hybrid power system for improving power quality because optimal utilization of primary energy sources will increase the level of supply reliability. In order to meet sustained load demands during varying natural conditions, different renewable energy sources and converters are need to be integrated with each other. The combination of Photo Voltaic (PV) array System, Wind turbine system, Fuel cell (FC) and Diesel generator systems are used for power generation. Due to variation in output power of solar panel, wind turbine and fuel cell, Diesel engine is also coupled to ensure reliable supply under all conditions. Regenerative cycle of fuel cell helps to dump excess energy from DC bus. The results show that the proposed hybrid power system can effectively manage the optimal utilization of primary energy sources and improves the power quality in an islanding as well as grid connected mode.
Keywords- Diesel engine - Synchronous Generator set, Energy Management, Hybrid Power System, Islanding (Isolated) mode and grid connected mode, and Renewable energy Sources.

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Abstract: The smart grid is expected to be an integration of intelligent microgrids featured by localized electricity generation, storage, and consumption. In this paper, we optimize power based on demanding smart grid via wireless communication. Purpose of Wireless communication is to monitor and control the renewable energy generation as well as estimate the consumption. In order to avoid a single point of failure, multi agent (mesh topology) system based decentralized microgrid control is widely considered.
Keywords - smart grid, wireless network, mesh topology, power generation.

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Abstract: This paper highlights on the active power sharing of manifold distributed generators (DGs) in a microgrid. The microgrid can be functioned in two modes 1) a grid-connected mode and 2) An autonomous mode. In the course of islanded operation, one DG unit should share its output power with other DG units in exact accordance with the load. Unit output power control (UPC) is introduced to control the active power of DGs. The sustainability of the proposed power control mode is simulated under MATLAB/SIMULINK.
Keywords: microgrid;power sharing;distributed generation; frequency;

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Abstract: This paper bestows an optimal power control stratagem for an island microgrid. The foremost aim of this work is to improve the power quality of the microgrid. The primary performance parameters considered in this work are voltage regulation and frequency regulation, especially at the instant of shifting from grid tied mode to island mode of operation of the microgrid. An inner loop of current control and an outer loop of power control combined to form the projected control strategy. Ant colony optimization (ACO) based control strategy is proposed for self-tuning the control parameters. To validate the performance of the controllers, simulation is performed with the help of MATLAB/SIMULINK software.
Keywords:Microgrid, Power control stratagem, Current control stratagem.

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Abstract: Due to the trade-off between power, area and performance, various efforts have been done. This work is also based to reduce the power dissipation of the vlsi circuits with the performance upto the acceptable level. The dominant term in a well designed vlsi circuit is the switching power and low-power design thus becomes the task of minimizing this switching power. So, to design a low-power vlsi circuit, it is preferable to use Non-clocked logic styles as they have less switching power. In this work various Non-clocked logic styles are compared by performing transistor level simulations for half adder circuit using TSMC 0.18 μm Technology and Eldo simulator of Mentor graphics.
Keywords: Low-power, Non-clocked logic style, Half adder, DCVS, DSL, CNTL.

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