Sensor Controlled Sanitizer Door Knob with Scan Technique

Hand sanitizers were developed for use of cleansing of hands without soap and water. These are made up of gels that contain alcohol in order to kill germs present on the skin. The alcohol works immediately and effectively in order to kill bacteria and many viruses. Sanitizer is low of cost cheaply available to use for cleansing of hands. They are convenient, portable, easy to use and less time consuming. So in this project a hand sanitizer is attached to the door handle and releases automatically when the person touches the door handle. It saves time in our fast life by removing the use of washbasins. Although various other options are already present in which a wet tissue is attached to the door handle. But the drawback of this system is tissues get dried up and hence become of no use. It causes wastage. The sanitizers on the other hand are liquid based. The project has been implemented using FPGA. The FPGA has many advantages as speed, number of input/output ports and performance. This system has been successfully implemented and tested in hardware using Xylinx 14.5 software packages using Very High Speed Integrated circuit hardware description language(VHDL). RTL and technology schematic are included to validate simulation results.