Couple of my research papers in the fields of VLSI and Embedded Systems.
Abstract: Going on Highways, we tend to spend much more time waiting at the toll booth queue and some more, to pay the toll tax manually. An Automated toll Collection system would eliminate these drawbacks and facilitate a speedy transport. Our Project focuses on an automated toll collection system using radio frequency identification (RFID) technology and is based on concepts of embedded systems. RFID technology is an “Automated Data Collection” technology. The technology uses Radio Frequency to transfer data between the reader and a movable item that has been installed with a RFID tag. Each RFID tag will have a unique electronic code called as “Tag’s Identification number”. RFID tags consist of RFID chip along with the antennas which are required to increase the range of the RFID chip. RFID chips don’t have their own source of power. Passive RFID chip harness energy from nearby radio transmitter device called as “RFID reader” which will read the unique ID of the RFID tag and store it in the computer. RFID technology is fast and does not require physical sight or contact between reader and the tagged item. In the proposed system, RFID tags will be mounted on the windshields of vehicles, these tags will be read by RFID readers which will be interfaced using Atmega64 microcontroller. Data information is exchanged between the motorists and toll authorities, thereby enabling a more efficient toll collection by reducing traffic and eliminating possible human errors. Also the proposed system will be postpaid wherein the toll tax is added to the user’s account and the respective bill will be generated on a monthly basis and sent to the user, analogous to the traditional credit card system.
Abstract: This paper describes the design, modeling and simulation of an 8-bit dedicated processor for a Chocolate Automatic Vending Machine (AVM). The proposed dedicated processor is modelled by writing appropriate programs in. The system supports 8 different 8-bit instructions. System simulation was carried out using Xilinx ISE Design Suite 14.6. After accepting the user input which is in the form of desired amount (Re.1, 5, 10 or 20) and second input i.e. choice of the chocolate, the system formulates the chocolate using pre-programmed appropriate proportions and vends it automatically to the user. The system would formulate the recipes with embedded logic. Each recipes involves mixture of various other ingredients which finally results in the desired type of chocolate formation. The Chocolate AVM unlike most other vending machines, prepares chocolate instantly. When the entire process is complete, the vending machine should produce the chocolate and return if any change left
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