The research study concerned here was to: (1) produce a virtual physics laboratory application to be called ViPhyLab by using the Android smartphone as basis; (2) determine the appropriateness and quality of the virtual physics laboratory application that had been developed; and (3) describe the improvement in learning independence and conceptual understanding of rotational dynamics after using the ViPhyLab application. The study was research and development (R&D) in design. The product was validated by a physics expert, an instructional media expert, peer reviewers, and physics teachers. The product underwent one-on-one testing, restricted testing, and field testing. The field testing used the one-group pre-test post-test design. The test subjects were forty students of Senior High School (Sekolah Menengah Atas, SMA, in Indonesia), Pekanbaru. The data collection was conducted by using a questionnaire, learning independence test, and conceptual understanding test. The appropriateness and quality of the application were analyzed descriptively. Improvement in learning independence and conceptual understanding was analyzed through paired t-test. Results of the study indicated: (1) ViPhyLab is an Android application that could be operated for learning both at and outside school; (2) the ViPhyLab application is quite viable as learning media and of very good quality.

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Virtual Physics Laboratory Application Based on the Android Smartphone to Improve Learning Independence and Conceptual Understanding.

- Most of the smart applications, such as smart energy metering devices, demand strong privacy preservation to strengthen data privacy. However, it is difficult to protect the privacy of the smart device data, especially on the client side. It is mainly because payment for billing is computed by the server deployed at the client's side, and it is highly challenging to prevent the leakage of client's information to unauthorised users. Various researchers have discussed this problem and have proposed different privacy preservation techniques. Conventional techniques suffer from the problem of high computational and communication overload on the client side. In addition, the performance of these techniques deteriorates due to computational complexity and their inability to handle the security of large-scale data. Due to these limitations, it becomes easy for the attackers to introduce malicious attacks on the server, posing a significant threat to data security. In this context, this proposal intends to design novel privacy preservation and secure billing framework using deep learning techniques to ensure data security in smart energy metering devices. This research aims to overcome the limitations of the existing techniques to achieve robust privacy preservation in smart devices and increase the cyber resilience of these devices.

Cyber-Resilient Privacy Preservation and Secure Billing Approach for Smart Energy Metering Devices

Objective: This paper describes the use of virtual instrumentation tool - LabVIEW for web based demand side energy monitoring using GSM based wireless data acquisition. Method: The demand side energy monitoring is carried out by microcontroller based system on Time of Day basis. The demand side energy utilization tracked by the microcontroller based system is transmitted using GSM communication to remote metering infrastructure implemented on LabVIEW platform for real time monitoring. The demand side energy utilization information acquired by metering infrastructure can be accessed over the internet using server - client model based communication. The metering infrastructure is designed to provide SMS based customer service regarding monthly energy utilization. Findings: Demonstrates the use of virtual instrument for wireless and internet based automation of energy metering system for functions such as remote meter reading, meter data management, report generation and finally real time and historical trending are realized. Applications/Improvements: The LabVIEW based virtual instrument application can be improved to perform multipoint wireless communication.

John Mohit

Papers

A Novel Smart Metering Infrastructure using Virtual Instrument