Internet of things is shortened as IoT. Today IoT is a key and abrogating subject of the specialized and social importance. Results of buyers, things and vehicles, industry based and fundamental segments, sensors, and other everyday items are converged with network of internet and the solid information abilities which guarantee to change the sort in which we work and live. The proposed work demonstrates the implementation of symmetric key lightweight algorithm for secured data transmission of images and text using image encryption system as well as reversible data hiding system. In this paper, implemented symmetric key cryptography for various formats of images, as well as real time image acquisition system has been designed in the form of graphical user interface. Reversible data hiding system has also been designed for secure data transmission system.
The smart blind stick helps visually impaired people to commute and to do their work easily. The usual blind stick doesn’t detect the obstacle in the way of visually impaired person and hence sometimes becomes a cause of fatal road accidents. Because the visually impaired person does not know what type of objects is in front of them, the person cannot recognize the obstacle and how far is he/she from the object which makes the commuting process of the blind person strenuous. This paper presents the blind stick works with the help of ultrasonic sensors and Arduino for visually impaired people. With the help of smart blind stick, the object is detected using an ultrasonic sensor and the person helping the blind person. GPS is integrated with smart blind stick for real-time tracking of the blind person which can be very useful in case of any casualty.
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