Velagapudi Ramakrishna Siddhartha Engineering College

About: Velagapudi Ramakrishna Siddhartha Engineering College is a based out in . It is known for research contribution in the topics: Computer science & Antenna (radio). The organization has 1307 authors who have published 1155 publications receiving 6163 citations.

Smart Wearable Safety Device: A Wearable Anti-Assault and Location Tracking Device

Abstract: In this modern era, every girl and woman has the right to attend school, work in offices, travel freely without any insecurity. But there are many cities in this globe where women are not protected. Harassment and abuse have become a reckless crime in major countries that outrages a woman’s modesty. Hundreds and thousands of women and now even children are not being spared from these atrocities. Self-defense skills and tools are not effective in every situation. According to statistics, two women are raped in India every hour. This paper deploys the idea for safety and tracking device which has multi-purpose sensing features and is a wearable device. This device has raspberry-pi which is the main controller of the system. It has a GPS module, self-defense tools, a camera for live streaming, and a continuous live location tracking system. The system of the invention would have various types of end uses and involving tracking and live location sending to the concerned people.

Feasibility Analysis of SEPIC Converter as a PV Balancer for Practical Photovoltaic System

Abstract: Photovoltaic balancer (PVB) is fundamentally operating as a dc-dc converter to compensate for the mismatching voltages between dc bus and solar photovoltaic (SPV) module. The feasible architecture of a PVB is adopted with a buck converter to interface the dc bus and SPV module when connected to an AC grid. This paper presents the architecture of PVB equipped with a single-end primary inductance converter (SEPIC) by replacing the conventional buck converter to enrich the performance of overall system. The performance analysis of SEPIC converter is demonstrated on practical PV module in terms of its cost, size, and power rating of the system. Thus, obtained simulation results are compared with conventional buck converter on the same system to verify the experimental feasibility of the SEPIC converter, and concluded that the SEPIC converter effectively reduces the power rating of PVB.

Medical Records Management Using Cloud Technology

Abstract: Medical Health Records are being used in healthcare services to reduce the issues and limitations of paper-based approaches, but their adoption has been slow due to high investment and storage files. Many hospitals have been using paper-based methodologies because they are unfamiliar with electronic medical systems. Confidential data, data sharing, and delegation of authority are mostly issues. Medical Records Management Implementation Using cloud technology in healthcare systems is now a distinctive trend. Because of benefits such as reduced price and efficiency, cutting-cloud cloud in order to reduce local storage, warehousing has become a common way of storing a high proportion of EHRs. Further, the proposed model has included an OTP authentication mechanism to the patient data, which gives a high level of patient data confidentiality that is not present in existing applications. Also, a different key will be generated for encryption and decryption each time when a user log in, which is more useful for protecting user's data from manipulators.

Implementation of Digital Phase Locked Loop using CMOS Technology

Abstract: The requirement for low power and rapid circuits are expanding in present day hardware. The generation of carrier and locking of phase have become significant for transceiver circuits. The frequency divider which is dependent on the phase locked loop (PLL) is a fundamental building block of the transceiver. The frequency divider that produces carrier for the down-conversion/up-conversion functions, it works at high frequency and it expends a massive portion of the whole power of the circuit. The frequency divider dependent on phase locked loop (PLL) comprises of voltage controlled oscillator (VCO), phase detector, loop filter and frequency divider. The voltage controlled oscillator (VCO) and frequency divider expends the utmost power. This paper presents a CMOS digital phase locked loop which is proposed with low power utilization voltage controlled oscillator (VCO) circuit and frequency divider circuit using 45nm CMOS technology.