This research work proposes a prototype of low-cost smart wheelchair design. The significance of this model of the wheelchair is to move autonomously around a known environment, following a definite path. Existing systems include control action using a joystick, voice recognition, head movements, and eye motion. However, these systems include limitations in terms of operating complexity, the environment in which it is used and cost. Most importantly, the limitation of the existing system is the need for the continuous effort of the user in controlling the wheelchair. Hence, this work targets to aid the physically challenged persons to have improved mobility without much of human effort. An automatic wheelchair model is proposed that empowers navigation without continuous steering of a wheelchair by the user in a known environment. The model includes a set of sensors, infrared, ultrasonic, RFID reader and tags. The other significant components are the compass module, ATmega microcontroller, and motors. This system was designed and developed to enable low cost, reduced time and effort of the user. This paper provides a comprehensive overview of the design and validation of the autonomous wheelchair system. Further, the sophistication towards the GPS enabled autonomous system could be extended, which works well in different new environments.

Programming as-an administration (SaaS) cloud frameworks empower application administration suppliers to convey their applications through huge distributed computing foundations. Not with standing, because of their imparting nature, SaaS mists are powerless against noxious assaults. In this paper, we show IntTest, an adaptable and viable administration honesty verification system for SaaS mists. IntTest gives a novel coordinated authentication chart investigation conspire that can give stronger aggressor pinpointing force than past plans. Additionally, IntTest can naturally upgrade result quality by supplanting awful results created by noxious aggressors with great results delivered by considerate administration suppliers.We have actualized a model of the IntTest framework and tried it on a creation distributed computing foundation utilizing IBM System S stream preparing applications. Our trial results demonstrate that IntTest can accomplish higher aggressor pinpointing exactness than existing methodologies. IntTest does not require any exceptional equipment or secure bit bolster and forces little execution effect to the application, which makes it pragmatic for extensive scale cloud frameworks.