Abstract:Recent rapid growth on smart portable computing devices pushed the radio frequency (RF) based wireless technologies to their band capacity limits. The emerging optical wireless communication has been considered as a most viable solutions to respond to the ever-increasing wireless capacity demand. Particularly, Visible Light Communication (VLC) which uses light emitting diode (LED) as a media of transmission and this enables an opportunity and infrastructure for the high/ low rate low-cost wireless communication. This paper proposes the VLC PHY/MAC design to enable the internet connectivity using VLC based network infrastructure. The proposed PHY/MAC design considered to integrate with existing network IP stack in the context of mobile communications given the recent pressing needs in mobile wireless networking. This research deliberate on key challenges involved in Smart Lighting and Wireless Networking to design the next generation wireless technologies using visible light.

Keywords:VLC, PHY, MAC, NETWORK LAYER, IEEE802.15.7, LED, RF, TCP/IP

Abstract:a fixture is a mechanical setup that holds a job so that it will aid the industrial processes carried out on it with ease, in terms of accessibility and reach. The processes may include manipulation of a job like rotation, clamping, de-clamping and positioning. Fixtures can be handled manually to hold a job. But such manual process becomes tedious in complex processes which causes human fatigue as well as it is time consuming. Hence PLC (Programmable Logic controller) can be used to automate the industrial fixture, to reduce the complexity of the process. In our project we are trying to construct a PLC based control system to simulate the automation of an industrial fixture and analyzed it for safety and increase productivity which will be beneficial for manufacture industry.

Keywords:FRL Unit, Inductive Proximity Sensors, Ladder Logic, Miniature Circuit Breaker or MCB, Pneumatic Cylinders, Programmable logic controller, Reed Switches, Relays, Rslogix5000, Solenoid valves.

Abstract:In practice, image segmentation can be performed in many areas like medical and satellite communications to detect objects and regions in the image.The texture enhancement methods representing all texture information using a single image component. In previous texture enhancement methods reduce noise or artifacts in the image to highlight the textures with the help of filters which reduces the quality of the image. In this project propose a new texture enhancement method using Morphological Component Analysis which uses image decomposition that allows different visual characteristics of textures to be represented by separate components. This method is intended to be a preprocessing step to the use of texture based segmentation algorithms. It uses the modification of Morphological Component Analysis which allows textures to be separated into multiple components each representing different visual characteristics of texture. It select four such texture characteristics and propose a new dictionaries to extract these components using Morphological Component Analysis (MCA). This method produces superior results compared to comparator methods for all segmentation algorithms tested. It results the clusters of local texture features of each distinct image texture to mutually diverge within the multidimensional feature space to a vastly superior degree competes the comparator enhancement methods. The motivation for this project is to extract the greater performance from any texture based segmentation method by establishing a general purpose texture enhancement algorithm.

Keywords:Texture, enhancement, segmentation, morphological component analysis, non-linear transform

Abstract:We have proposed a 16-bit high-speed multiplier using VHDL. With this method, the number of partial products has been reduced and the carry during addition has been eliminated. It also reduces the switching power which makes this multiplier a low power multiplier as compared to other multipliers. Due to the elimination of carry, the delay has been reduced which makes it a faster multiplier as well. The RTL circuit is much simpler, this decreased circuit complexity which leads to a better circuit with lesser delay and easier, cost-efficient way to implement the hardware.

Keywords:VHDL, Xilinx, Multiplier, Partial Addition

Abstract:The wireless communication technologies are rapidly spreading to many new areas, including the automation and the importance of the use of wireless technologies in the data acquisition, building control, monitoring systems and automation of manufacturing processes will grow. Intelligent mobile robots and cooperative multi - agent robotic systems can be very efficient tools to speed up search and research operations in remote areas. Robots are also useful to do jobs in areas and in situations that are hazardous for human. They can go anywhere that is not reachable my humans and can go into gaps and move through small holes that are impossible for humans and even trained dogs. Our preliminary aim in this project is to build an pc controlled robot, which could be able to send the environmental status, the temperature condition, and if there is any obstacle on its path, and what is the obstacle in any remote place which is not reachable by the humans and it will be controlled by ZIGBEE communication.This project uses regulated 5V, 750mApower supply. 7805 three terminal voltageregulator is used for voltage regulation. Bridge type full wave rectifier is used to rectify the ac output of secondary of 230/18V step down transformer.

Keywords:Obs tacle, Pc controlled robot, Robotic systems , Wireless communication technologies , Zigbee communication.