Good day, Dr. G Hari Krishnan. I'm Arjun. I've had a look through your background and your professional record. I'm interested in hearing more about your work and how you see yourself fitting in here with our faculty. Ready to start?

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Yes, please proceed. Please start by introducing your professional journey in academia.

OK. Thank you.

So good afternoon.

Myself for Doctor G Harikrishna.

Uh, first I will, uh, tell about my educational career and then later my professional working career. So coming to my educational career, I did my B electrical electronics in College of engineering, Anna University main campus and during my B.Tech, I did my project predominantly inverter for three phase induction motor speed control under the guidance of doctor. Yes, Robbie, currently he is working. So professor in Krunal varies on college.

Uh, later after my B.Tech, Yes, yes.

Please continue, Professor.

Thank you So after completing my B.Tech I joined ME biomedical engineering in College of engineering announced the same college but ECE department and it's a two year course. And during my journey in M tech biomedical engineering I have two things to share. 1 is my implant training. I did my one month implant training in Cherry.

Thank you for sharing, Professor. Please go ahead and share the rest of your journey.

Yeah, we have to identify a problem there and we have to do or finally a project there. OK. It happened for eight months and first few months we are given some tasks that we are given a mission and we have to interface that with the computer. It is very tough machine. It's a two way communication unless until we send something then only it will respond. So, so it's a bigger task and it took nearly three months to make that mission propagation monitoring system mission to speak with computer later for as a part of our ME project we did web.

Online ECG monitoring same from using that machine, we pick ECG signal and make it uh, to display in a web environment, live web environment. OK, that is regarding my M tech and uh, after my, uh, M tech, I joined a PhD in Satyabhama University and during my uh, PhD, uh, initially I start focusing on minimal uh, size. There is a nano size, but due to infrastructure concern, facility constraint, I cannot able to.

And later I start working with authorities. So we initially during my literature I found that there is no only invasive methods are possible image processing, blood based method. So I thought of finding out something which is non invasive. So what I did is I what is the design A circuit which able to diagnose authorities non invasively. So what I did is I used a normal ECG electrode itself for giving the signal and getting that is the bioimpedance concept. So we have to send a signal with a frequency of 200 kilowatts and so that is sent to through 2 electrodes and another two electrode will pick the response of the signal what the signal.

The impact in that body tissue area, fluid area that we'll get as a response and from that we can tell whether what is the quantity of the synovial fluid. Based on that we can tell whether the patient is having arthritis or not. So we successfully did and gone for a good publication. So I published my work in SCI journal, Journal of Electric Engineering Technology, which is having impact of 1.7 currently under Springer and also for my PhD, I.

Those publisher 2 Scopus Under 2 IEEE conference letter my this is my educational journey. Can I proceed to my professional journey?

What's up?

Please proceed with your professional journey, Professor.

Thank you. Thank you. So coming to my professional journey, I will go in descending order. So first I will tell currently where I'm working and what I'm doing there. OK, Currently I'm working in Mohan Babu University pretty fast four years before it is called as Sri Vidyani Ketan Engineering College autonomous when I joined until now only. So it is autonomous data is converted into university. So currently. My job there is. The first taking the lecture my subjects what I handle during my journey is particularly microprocessor, microcontroller, embedded system, IoT, then electrical measurement, basic electrical and electronics engineering, then computer architecture and organization. These are major few subject what I handled and coming to other than teaching what I did there is coming to research. I have done plenty regarding. 1st is I go with my funded projects. So first point is our college obtained StubHub which is 3.6 crore funded project. We got the project and I am out of five. I'm also one of the Co π and my role in that is so we have go fund innovation where an hybrid preheating system for sugar cane juices. So we he want to heat the. You can just to go further for a jaggery. So in that we take analytical supply and solar. So these two are hybrid and what is my party is as embedded expert. So I have taken industry grade temperature sensor. So so few locations or notes are pointer at that base I have to place my sensors and that sensor will pick the temperature signal and that signal is. Made transmitted using a node MCU wirelessly and we had a centralized station in that.

Location itself and we used to monitor what is the current temperature and what is the maximum temperature reached by the juice, preheating juice, everything that is my role in the Tasty hub. We successfully implemented it and it is given to the village peoples and they are utilizing it. So coming to in funder project, I am currently submitted few projects one is around 57,00,000 which is. For near Nortel joint is diagnosis.

Diagnostics as well as therapy. Two things are involved in my research and we submitted but accidentally I don't know why it is rejected is very good and I I'm going to modify that in further ready to submit and coming to research other than. Funded projects. I did a few consultancy work. One of that is we opted when villager Pulichira village, near nearly 20 kilometres from our college.

There we identify a greenhouse which is around 1 acre there the owner task is we want to make that automated without with very less manpower. I want to monitor what is happening there and also I want to operate without human. And we initially did the simulation model for that using temperature, humidity sensor and. Motor on off and sprinkler light so these are all required in order to have a healthy.

In one for the plant. So we successfully first, uh, shown the simulation once the owner is OK with the simulation. And we have shown a prototype, uh, with a small uh, which covers small area. And later we implemented, uh, for that one acre successfully. Okay, that is my consultancy journey and, uh, coming to our college, we did 2 similar to a startup. Where we I am a part of balloons satellite team. Where we successfully launched a a 40 kilometer height balloon satellite which went above 40 kilometers and which gathered what to say the temperature, humidity, CO2 and also image video details starting from zero to 40° and reverse journey. So with that we can able to. Predict for us to fire and also what is the temperature? And uh, so actually our goal is we want to, to send after every month and try to monitor what is the changes happening in the atmosphere. That is our intention, but accidentally we cannot, we go on only with the one time. And during that launch, all major Astro scientists were there and they are, they all appreciated that our circuit is actually indigenous where we have designed our own circuit. For, uh, data acquisition, image acquisition and also for visualization. So in order to say that we have designed our own payload which acquires the signal, which stores the signal, which shows the image. And also we can able to visualize the image and signal. That is regarding my startup journey in. And also currently we are doing one more work for our college. So our task is to identify the water leak with the current.

Concern we are trying to go with astronomy based sensor which is which is challenging. We are currently doing it to first of all it is actually three stage 1 is first identify leak in a block range. Once a block is identified in that block what pipe is having the leak and later coming to that particular toilet or particular room which exactly what tap is having the problem. So so we we are try currently doing that. Research there.

And in addition to this consultancy and funter projects, so I am trained by a NASCOM for 25 days another 25, three times we have we have to be trained by NASSCOM nearly it is 75 days training. Once we are trained by NASSCOM, we have to train student towards industry ready that is mainly focusing on embodied system hardware. As well as software. So what are the different hardware facility for to design an embedded and IoT and how to what is convert that as a project and also how to design coding part for sensor interfacing as well as how to visualize how to make a OS level for an embedded circuit. So up to that level we have undergone 2 phases and one phase is. Still pending. So we can officially say that we are NASCOM.

Certified trainer for Embedded system and currently we are training the 1st 2 batch with 60 students EC and triple students. We are training under NASCOM and coming to my grid in one Babu university I have established 3 highlighting lab 1 is currently NASCOM collaborated advanced Embedded system lab and Embedded System lab for my department which which is using. MSP 430 microcontroller based lab and also.

So I have upgraded microprocessor microcontroller lab for our department also. So we I'm the what is this? I initiated and I brought IoT lab for our department. And so these few things what I did in addition to the research teaching coming to administrative level, I am the research coordinator for the department. Taking first collecting the data and also.

So giving exact data required for Knack NPA and also motivate the faculty towards funded projects, towards patent and towards innovative idea. That is the major role of my research coordinator. In addition to that coming to curriculum. So I'm the exam section coordinator for the department taking care of internal exam and also external exam providing the data required by the exam section. I mean mediator between. The department faculty, HOD and the exam section. So these regarding my MBU journey and early before joining MBU Mohan Babu University, I have been working at Madanapalli Institute of Technology meets Design in Madanapalli Repetition Autonomous College. I worked there for one year, two months which given a very good experience to me. So I handled the subject control system. Embedded system, microprocessor and microcontroller. These are a subject I thought in which Madanapalli in addition to teaching I have given a role of academic coordinator. The main role of is is to take care of the students. So during my working there Madanapalli Institute have started introducing MOOC nodal NPTEL courses. That is 2015 to 16 journey. The other time I'm telling so. Our role is is to motivate the students to take part in the online courses and also help them to register and identify a few faculty to guide them to make them to easily understand that. And also we have to take a till he get the certificate that is as academic coordinator in addition to academic coordinator and teaching mix provided plenty of opportunities to meet.

Uh, Tirupati, uh, IIT Madras IAC, Bangalore IIM and so whenever there is a call for any fund that uh, myths used to send to that particular location and gather share what to say that our ideas with that scientists and take next next step forward. OK, then before joining Mix Madanapalli, I worked in Satyabama University for eight years, which is my what is the career start after my.

Scientists of IIT.

Impact So during my 8 year journey in Satyabhama University, first of all I coming to teaching. I handle plenty of subjects particularly control system, microprocessor, microcontroller, embedded system, PC based medical instrumentation, computers in medicine, electron device and circuit, electrical circuit, basic electrical engineering like that. I handled a few other subjects also OK in addition to teaching same as. Satyabhama News also I am the research coordinator so to take part of mainly there I used to motivate our Co faculties to go for publication and what is h-index, what is purpose, what is sei. We used to educate new faculties and motivate them to go for publication, go for funded project. That is my role there and in addition to research coordinator and teaching so. Take what is it some value added courses for students so that we can make the student to be industry ready. OK, that is my journey in Satyabama University. Before joining Satyabhama University, I had one year experience in Jerusalem College of Engineering. That is my entry to the teaching there. So I want to say that train I learned what's the good lab experience and teaching experience there with the experiential available. So there I handled a subject control system, electrical and electronic engineering, basic electrical, electrical engineering and electron device and circuits. So first subject what I took in my life is the electron division circuit. Initially I had some what is it that less feedback telling that I would in the subject but expressing the content is not OK so. So after guidance from my HOD and other faculty, I improved.

In my presentation and everything built after that first what is a feedback these regarding my what is it a professional journey?

55 Scopus index papers including conference Journal, and nearly 15 Web of Science papers, including Sci CIE. My h-index of Scopus is 14.

Anything else I have to regarding my profile research profile I have?

Yes, Sir. This is regarding myself. Anything I missed? I anything I need to say about myself, Sir?

Yes.

Yes, Sir.

Yes, Sir.

Starting with "Image Processing," can you elaborate on your practical experience or projects where you applied image processing techniques?

Yes, definitely. So coming to image processing, first of all, in my PhD itself to validate my research, I have compared my studies with image processing, arthritis images particularly I have taken a X-ray image and.

Uh, what is it histopathological images of arthritis disease? And so we have processed this and got the result. And, uh, and also we processed our hardware based result and we, we compared that. OK, There my e-mail crossing journey started and further coming to my implementation of what to say that satellite balloon satellite. Our main role is to capture the real time image and make it to store and further we process that image to.

25, what is the fog level and what is the altitude level? We have done a few research on it and also coming to guiding the students for BTEC students. So I used to give a hybrid based project where sensor based data is required also image processing particularly what to say insulators. So we go with the HD insulator, transmission line insulator so where? We we go with the sensor based data and also we take the image and process with. Machine learning and deep learning approaches. So we use efficient net and modified efficient net and also we go for incremental learning process in the in the type vision net based, modified efficient net based. First initially we we done image processing using taking a pre trained network and process the image. Mainly particularly we did the image processing network. We have taken efficient net, VG 16 address net. So we have taken these three what to say that pretend algorithm. Further we modified the pre trained algorithm and also we converted that into a transfer learning based and we did a few image processing further. Currently we are going with an multi-model based. Approaches where we combine traditional.

Machine learning method with the what to say that?

Discrete time network or combine? Yes Sir.

Yes, Sir.

Yes.

Let’s verify your expertise in "Embedded & Communication" next. Could you detail a significant project or application in this domain, emphasizing your role and technical contributions?

Thanks.

Exactly. OK, Sir, thank you. So coming to my embedded and embedded communication, so I take a example of that balloon satellite where we launched under the presence of greatest persons of Isrose in ISRO chairman also present during that launch. So coming to the embedded communication, so in that satellite. We had a sensor which is connected to what is. We use the device called as. Health tech embedded board, Coming to health tech embedded board, it will have an ESP 32 microcontroller based embedded board along with it Lora communication module. So health tech will have an embedded board ESP 32 along with it Lora communication also there. So what we do is our system once we connect with that we have write a code to transfer first acquire the signal, whatever signal we require and also to transmit. OK, once we transmit the signal, we have, uh, uh, have a receiver, the same Heltech device through Lora communication, uh, which receives the, the data with the range of nearly 1 kilometer. We. So even even though the theoretical says that we can go with 10 kilometers, 5 kilometers, but according to practical testing of us within our college environment, we identify that Lora communication with 456 megahertz of frequency can able to transmit a maximum of. 1 kilometer in the. Uh, land range with the building, uh, trees and all. And also while launching our, uh, satellite, we have observed that, uh, after 10 kilometers also, we are receiving the data, uh, through Lora. So we, we are, what is it really shocked to see that we are receiving when our, what's satis going beyond 10 kilometers also. So, so coming to communication. So I, I had some experience in working with Lora again, able to transmit my signal.

Uh, transmit my data through Laura from 1 device, which is nothing but ESP 30 to device two, another device and also using, uh, serial communication, we took data, uh, into the system and able to visualize at the receiving station. And also, uh, we, what connected this, what you say that ESP 32 health tech module through serial communication with the Raspberry Pi and. We try to store that whatever the signal acquired during the real time and it is the satellite is travelling.

Through serial communication, our sensor data and image data is stored in the Raspberry Pi SIM card. So once we what is it retrieve our satellite, we have seen the data which is collected by the serial communication. So this is one of my experience using communication and also currently we are working for water leak for our college level in that so we are going with the accelerometer.

Which is connected to a ESP 32 module and we make the data to a transmitter. So for a single block, we will have a centralized station or we have a web page where Esensar will acquire the signal and through Lora communication we transmit that and receive in the central station and put into the cloud. OK, every block will have a central station put data into the cloud and we currently we are working till the block level and the next phase is we are going to.

Design a web page where all cloud collector data is visualized and also monitor and go for online control. So these regarding communication and also coming to my SD hub project where I worked as a Co Pi. There the temperature data which is acquired by the temperature sensor is transmitted to that local station through wirelessly using.

At the YEAH we use ESP 13 not the lower for our STA hub. See these are all the few experience where I worked with communication platform under embedded system.

ESP 32.

Thank you for explaining your work in embedded systems and communication. Your involvement in developing and testing real-time systems using ESP32 and Lora communication highlights practical expertise in the area. Next, let’s assess your approach to effectively teaching both theoretical and laboratory courses. Could you share how you structure your classes to engage and support student learning?

Yes, Sir. So coming to my teaching experience, I go with a single subject. So generally I go with a micro personal microcontroller. So initially whenever we used to start any subject, first of all why we need to study this subject. So where this subject is practically applied. So that first I made students to first make them why they are studying subject once they are confident that yeah, if I study.

Check that will be useful somewhere so they will get the interest to listen. So coming to that point what are the major subject I thought is practically related subject so which made me comfort in telling before starting any subject. So telling where this subject will be applicable first with a few real time practical examples then I start the subject.

So coming to after starting the subject for after every model, I try to what to say that since we had a practical sort of parallel lab as well as theory, so we used to for after every model, I try to give a experiment and do in the lab which what we covered in the particular model. And also first I will make the student what I am giving to do later for every lab experiment after completing. Regular lab, some modification which should be reason and which should be practically applicable and it should be innovative. So I will tell them you have to modify this program which is unique and innovative. So definitely not all students used to get the output, but I found that nearly 30 to 40% of student.

Really use their brain bring what to say that few ideas so which make me satisfaction that I'm trying to what's that tune the students towards innovation so in addition to that after. Every subject is going to end. I used to give a mini project, so whatever they learned in that particular subject they have to implement as a mini subject. So I already told that my all subjects are purely related hardware based. What is the subject? It is very easy for me to convert my subject into a mini project. If that mini project gives some innovatively outcome then that is taken further for conference, publication or patent idea. So we have done what 2 patent for my? What is it? Last semester subjects and also four or five conferences we have gone.

With a theory subject leading to a mini project, that meeting project further extended as a conference work. Or what is the pattern?

Yes Sir, this is regarding my eBay of teaching.

OK.