Near field application: NFC smart notice board G. P Rajesh, Praveenraj Pattar, M. N Divya, Vara Prasad IFIP International Conference on Wireless and Optical Communications Networks Wocn, 2016 One of the conventional ways of dispersing information in a university or corporate office is through the Notice Board. Notice boards are an ideal platform that allows one to put up information so that it can be seen by everyone. Whenever there is a new circular to be dispersed among the students or employees, it will be immediately put up on the notice board where everyone has to manually gather at the board and look into the notice. In the busy and fast moving world today, this will lead to wastage of time. Instead, this paper provides a solution to the above problem using NFC application. The idea that has been proposed in this paper is to display the notice board through NFC tags. Each NFC tag is programmed to contain the notice information to display. Whenever it is required for a circular to be displayed just program (Update the Notice) the NFC tag. The students, employees etc., can scan the NFC tag through their NFC enabled smart phones which downloads the notice in the document format online into their handheld devices. This solution is user-friendly as the end-user can read the notices at their own convenient time in turn leads no wastage of time.
Sandalwood tree protection using Bluetooth version 4.0 Santhosh Hebbar, Praveenraj Pattar, Rajeshwari Madli, Varaprasad Golla 2015 International Conference on Computing and Network Communications Coconet 2015, 2016 Sandalwood trees are known for their fragrance and medicinal value due to which they enjoy the highest commercial advantage compared to other trees. In recent years there has been an increase in the number of sandalwood robberies as there is no pertinent solution available for protecting sandalwood trees, thus, making them endangered. This paper proposes a protection mechanism that makes use of Bluetooth 4.0. A model has been designed that takes care of most of the problems faced by sandalwood owners in protecting their trees against unauthorized axing. The implementation leverages Bluetooth 4.0 characteristics and uses the most efficient way to communicate with the owner in case of robberies. Whenever robbers try to cut sandalwood trees or try to destroy the protection system, the proposed system alerts the owner or the concerned authorities by sending an alarm to their mobile phones, so that they can initiate necessary actions. One of the attractive features of this model that is worth a mention is its durability that lasts up to a year. The proposed model can be implemented using two architectures; cluster architecture and distributed architecture. With help of these architectures a complete field of sandalwood trees can be protected successfully.
Automatic detection and notification of potholes and humps on roads to aid drivers Rajeshwari Madli, Santosh Hebbar, Praveenraj Pattar, Varaprasad Golla IEEE Sensors Journal, 2015 One of the major problems in developing countries is maintenance of roads. Well maintained roads contribute a major portion to the country's economy. Identification of pavement distress such as potholes and humps not only helps drivers to avoid accidents or vehicle damages, but also helps authorities to maintain roads. This paper discusses previous pothole detection methods that have been developed and proposes a cost-effective solution to identify the potholes and humps on roads and provide timely alerts to drivers to avoid accidents or vehicle damages. Ultrasonic sensors are used to identify the potholes and humps and also to measure their depth and height, respectively. The proposed system captures the geographical location coordinates of the potholes and humps using a global positioning system receiver. The sensed-data includes pothole depth, height of hump, and geographic location, which is stored in the database (cloud). This serves as a valuable source of information to the government authorities and vehicle drivers. An android application is used to alert drivers so that precautionary measures can be taken to evade accidents. Alerts are given in the form of a flash messages with an audio beep.
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