Novel Approach to Synchronize National Knowledge Network (NKN) of National Informatics Centre (NIC) Network with IST Over IoT Framework
Pranalee Premdas Thorat1, T. Bhardwaj2, P. Kandpal3, Ravinder Agarwal4, D K Aswal5

1Pranalee Thorat, Principal Scientist, Division of Time and Frequency Standards (NPL), National Physical Laboratory, India.
2Trilok Bhardwaj, Principal Scientist, Division of Time and Frequency Standards (NPL), National Physical Laboratory, India.
3Preeti Kandpal, Technical Assistant, Time and Frequency Group of Indian Standard Time division of CSIR-NPL, National Physical Laboratory, India.
4Dr. Ravinder Agarwal, Professor and Head, Department of Electrical and Instrumentation Engineering, Thapar Institute of Engineering & Technology, Patiala, India.
5Dr. D. K. Aswal, Director, Health Safety &Environment Group,Mumbai (Maharashtra), India.
Manuscript received on 28 February 2023 | Revised Manuscript received on 11 March 2023 | Manuscript Accepted on 15 April 2023 | Manuscript published on 30 April 2023 | PP: 44-52 | Volume-12 Issue-4, April 2023 | Retrieval Number: 100.1/ijeat.D40550412423 | DOI: 10.35940/ijeat.D4055.0412423

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Abstract: The successful commissioning of the proposed methodology to synchronize the NIC-NKN in Delhi and Hyderabad with Indian Standard Time (IST) maintained by NPLI over NTP protocol over IoT framework is a significant accomplishment in the field of time synchronization. The proposed methodology utilizes an IoT framework along with a unique Stratum 1 NTP architecture that is supported by a pre-calibrated Rubidium frequency source. This architecture enables the establishment of stratum 1 synchronization at the two locations, thereby ensuring that the time is accurately synchronized with the NPLI maintained Indian Standard Time (IST). The successful implementation of this methodology has several benefits. Firstly, it ensures that the time at the NIC-NKN in Delhi and Hyderabad is accurate and synchronized with the Indian Standard Time (IST) maintained by NPLI. This is crucial for various applications where precise timing is critical, such as in telecommunications, financial transactions, and scientific research. Secondly, this methodology can be extended to other locations and organizations that require accurate time synchronization. With the increasing use of IoT devices, the need for accurate time synchronization is only going to increase. This methodology provides a reliable and scalable solution that can be easily implemented in various organizations and locations. Thirdly, the use of pre-calibrated Rubidium frequency sources ensures that the time synchronization is accurate and stable over a long period. This is important as small inaccuracies in time synchronization can accumulate over time and result in significant errors. The use of pre-calibrated Rubidiumfrequency sources ensures that the time synchronization is accurate and stable over a long period, thereby avoiding such errors. In conclusion, the successful commissioning of the proposed methodology to synchronize the NIC-NKN in Delhi and Hyderabad with Indian Standard Time (IST) maintained by NPLI over NTP protocol over IoT framework is a significant accomplishment. Thismethodology provides a reliable and scalable solution that can be easily implemented in various organizations and locations to ensure accurate time synchronization. 
Keywords: NIC-NKN, NTP, NPLI., (IST), Framework, Network, IoT, Informatics
Scope of the Article: IoT