Rushi Gajjar
✈ Embedded Systems Hardware Developer ♚ Altium PCB Designer ✔ Let's Design
Vellore Area, Tamilnadu, India
SUMMARY
☛ I've been involved with electronics and computer gizmos in some form since I was a child (playing with Toy DC Motors, AA Cells, wires, Junked hard-drives, LEGO toys)- and that’s something I've never stopped learning. Got more interest in electronics after winning at State level Science fair in 8th Grade by making an self-dependent village model using conventional energy sources.
My interest on growing technologies in embedded systems put me into the path of freelancing, these days I work as a freelancer. I love Hardware, Hardware Development always excites me. I see it like a "Roller-Coaster" ride, miss off a single "bolt" and a complete disaster. Chck, chack, check is always required and when all "bolts" fit correctly, it's a thrill ride.
Very much interested into Internet of Things (IoT) based applications.Let's change the world by the way we interact with the "things".
"Do you know the future? Really? Let's design"
Current:
❶ M.Tech research student in Embedded Systems (Research Based Learning) at VIT University, Vellore, INDIA (2013-15 Batch)
❷ Active with Kansas,USA based startup as a Hardware Architect for Internet of Things based product.
❸ Active with an IIT Bombay based startup as a Hardware Developer for the design of Internet of Things based HUB Computers.
Area of Interest:
❶ Internet of Things
❷ End-to-end Customized Embedded Project/Product Design and Solutions
❸ High-Speed PCB design
❹ Technical Support/Solution
♚ Specialties:
❶ PCB Design : ALTIUM DESIGNER ★★★★★ (Project based Professional Experience)
❷ µC & Interfacing (PIC18, CC3200/CC3100, ARM-CortexMx, 8051)
❸ Simulation Tools (MATLAB,Altium)
❹ OpenCV, RTOS, POSIX, VxWorks, Python (Beginner Level)
❺ Raspberry Pi
❻ LABVIEW
❼ Embedded C
❽ Photoshop CS6
In pursuit of achieving expertise in Advanced Micro-controllers, RTOS and Device Drivers.
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EXPERIENCE
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Freelance Embedded Systems Designer and Technologist
Electronics Systems Design
I work as a Freelancer.
I design your requirements, mail me your requirements at rushi.business@yahoo.co.in and I will get back to you or we can have a Hangout(Gtalk) on gajjar.rushi
The project phase can be any, varying from an idea to block diagram, Schematic or just specifications, I can start off.
Continuous reporting to the customer/client to verify each of their requirements till the end-phase of the product/project.
Started learning this ART from my final year engineering level while working with HITACHI-HLI.
★ Proud Clients: D4 Automations, TATA-HITACHI, TCS-Client, Various Final Year ECE students
★★ Current Client : ncore Technology Solutions, Kansas, USA;
★ Currently active with IIT Bombay based Start-up researching on Internet of Things based hub computers.
Excellent experience of working with startups. Entrepreneurs have a great energy to work with.
Core Competencies : Schematic Design, PCB Design, PIC18, ARM Cortex-Mx, TI CC3200, WiFI, BT, RS232-485, Zigbee, Home Automation, Vehicle Surveillance, GSM, GPS, RF (RFM22B), Raspberry Pi
PCB DESIGN : 2.4GHz RF Boards, Differential Pair Routing, PCB Stack Management, High Speed PCB Design
I design your requirements, mail me your requirements at rushi.business@yahoo.co.in and I will get back to you or we can have a Hangout(Gtalk) on gajjar.rushi
The project phase can be any, varying from an idea to block diagram, Schematic or just specifications, I can start off.
Continuous reporting to the customer/client to verify each of their requirements till the end-phase of the product/project.
Started learning this ART from my final year engineering level while working with HITACHI-HLI.
★ Proud Clients: D4 Automations, TATA-HITACHI, TCS-Client, Various Final Year ECE students
★★ Current Client : ncore Technology Solutions, Kansas, USA;
★ Currently active with IIT Bombay based Start-up researching on Internet of Things based hub computers.
Excellent experience of working with startups. Entrepreneurs have a great energy to work with.
Core Competencies : Schematic Design, PCB Design, PIC18, ARM Cortex-Mx, TI CC3200, WiFI, BT, RS232-485, Zigbee, Home Automation, Vehicle Surveillance, GSM, GPS, RF (RFM22B), Raspberry Pi
PCB DESIGN : 2.4GHz RF Boards, Differential Pair Routing, PCB Stack Management, High Speed PCB Design
Electronics Engineer
MODERN GROUP COMPANIES MODERN DENIM LTD AND MODERN TERRY TOWELS LTD
Here, At this Modern Group of Companies Major work is done on process Automation, Automation systems including PLC and HMI (human machine interface) program, Power Electronics and to maintain the electronics equipment in the textile and fabrication machines.
Performed testing and verification of DC drives, Penal Debugging,Electrical Control of Clutches and Motors, Jacquard PCB, Temperature Sensors(TP100), Proximity Sensors and Speed controllers, Contactors, Actuators, Relays and Timers of Spinning, Weaving and Drying division.
Performed testing and verification of DC drives, Penal Debugging,Electrical Control of Clutches and Motors, Jacquard PCB, Temperature Sensors(TP100), Proximity Sensors and Speed controllers, Contactors, Actuators, Relays and Timers of Spinning, Weaving and Drying division.
Intern
Hitachi Home & Life Solutions (I) Ltd.
Having experience of working with an excellent team of Design and Development.
In which I took part in ongoing research on Controlling and Diagnosing the AIR-Conditioner from the remote place.
Responsible for designing the PIC Microcontroller based hardware including PCB design and component placement, Embedded Firmware development to make the device running.
The device was able to detect Gas Leakage, Overloading, Fluctuation defects and notified to the remote user using the GSM technology.
See project section for more details.
In which I took part in ongoing research on Controlling and Diagnosing the AIR-Conditioner from the remote place.
Responsible for designing the PIC Microcontroller based hardware including PCB design and component placement, Embedded Firmware development to make the device running.
The device was able to detect Gas Leakage, Overloading, Fluctuation defects and notified to the remote user using the GSM technology.
See project section for more details.
Trainee
Bharat Sanchar Nigam Limited
Program on Telecom Technologies
This was the summer training program on the Latest Telecom Technologies with the practical visits at different telecom Exchanges
This was the summer training program on the Latest Telecom Technologies with the practical visits at different telecom Exchanges
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EDUCATION
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Vellore Institute of Technology
Master of Technology (M.Tech.), Embedded Systems
VIT University, Vellore
School of Electronics Engineering (SENSE)
School of Electronics Engineering (SENSE)
Activities and Societies: Class Representative, Program Representative
Gujarat Technological University
Bachelor of Engineering (B.E.), Electronics & Communication, Distinction
Activities and Societies: Core Committee Member and Event Manager in Technical Level Symposium
Bruhad Gujarat Sangeet Samiti (Gandharva Mahavidhyalay Trust) OPEN UNIVERSITY, Ahmedabad
B.A. Music, Tabla
Activities and Societies: Live Performance, Sangat, Volunteering in National Events
Sharda Mandir Vinay Mandir, Ahmedabad, Gujarat
12th, Science, Distinction
Activities and Societies: 3rd Price at State level Science Fair 2004 in Conventional Energy Projects
PUBLICATIONS
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Real Time Vision Based Security System
8th International Science Engineering & Technology Conference, VIT University
May 6, 2014
Objective: To design a vision based security system which can meet the deadlines by performing particular tasks based on image processing for fast recognition of motion action and quick response in a closed monitored area.
The research was carried out to develop a novel algorithm for security system as well as to use the Open Source Technologies and make the product as low cost as possible.
This system was designed with a novel algorithm called RBFS, to provide security in home and office environment in closed monitored area. This feature can be integrated with existing systems installed in the area of interest.The system detects the only human presence in the area and notifies the person in charge.
The system successfully implemented on:
Micro-controller : BCM 2835 (ARM 1176JZFS)
Tools : Open CV, Debian Linux
Programming Language : Embedded C and C for open CV.
Camera : Logitech C270. UVC drivers ported to the board.
Development board : Raspberry Pi
Integration with cmake
The research was carried out to develop a novel algorithm for security system as well as to use the Open Source Technologies and make the product as low cost as possible.
This system was designed with a novel algorithm called RBFS, to provide security in home and office environment in closed monitored area. This feature can be integrated with existing systems installed in the area of interest.The system detects the only human presence in the area and notifies the person in charge.
The system successfully implemented on:
Micro-controller : BCM 2835 (ARM 1176JZFS)
Tools : Open CV, Debian Linux
Programming Language : Embedded C and C for open CV.
Camera : Logitech C270. UVC drivers ported to the board.
Development board : Raspberry Pi
Integration with cmake
Analysis of Wireless Token Ring Protocol using RTS/CTS Scheme
7th International Science Engineering & Technology Conference, VIT University
November 9, 2013
Abstract:
Motivation to analyze Wireless Token Ring Protocol (WTRP) arises due to the need to modify the protocol for implementing Wireless Controller Area Network (WCAN) as WTRP provides smooth extensions to other networks. WTRP promises quality of service (QoS) in terms of reserved bandwidth and constrained latency, which are critical in many real-time applications. WTRP also improves efficiency by reducing the number of retransmissions due to collisions and it is robust against single node failures, and recovers elegantly from several faults. It is an appropriate method for safety-critical vehicle-to-vehicle communications which ranges from braking system of a car to the landing gear of an airplane, and home automation to networking, In this paper, WTRP designed on top of 802.11 using RTS/CTS scheme is analyzed, throughput and delay analysis obtained is compared with WTRP with RTS/CTS scheme disabled, the analysis will be useful to implement the WCAN protocol.
Motivation to analyze Wireless Token Ring Protocol (WTRP) arises due to the need to modify the protocol for implementing Wireless Controller Area Network (WCAN) as WTRP provides smooth extensions to other networks. WTRP promises quality of service (QoS) in terms of reserved bandwidth and constrained latency, which are critical in many real-time applications. WTRP also improves efficiency by reducing the number of retransmissions due to collisions and it is robust against single node failures, and recovers elegantly from several faults. It is an appropriate method for safety-critical vehicle-to-vehicle communications which ranges from braking system of a car to the landing gear of an airplane, and home automation to networking, In this paper, WTRP designed on top of 802.11 using RTS/CTS scheme is analyzed, throughput and delay analysis obtained is compared with WTRP with RTS/CTS scheme disabled, the analysis will be useful to implement the WCAN protocol.
PROJECTS
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Analysis of Components for Hardware Design of ARM based Embedded Computer
– PresentInternet of Things
– Present
Responsible for Hardware design of Core Module.
Wifi, Onboard RF BG, Antenna, Power Management, Peripherals like Sensors (Temperature, Pressure, Acceleration, Humidity), Parallel on-board camera, Flash, Battery Backup etc.
Responsible for Adding and selecting components, Creating a Schematic, Design of Board Layout.
Next Phase : Sensor Nodes for different applications
Client : ncore Technology Solutions.
Wifi, Onboard RF BG, Antenna, Power Management, Peripherals like Sensors (Temperature, Pressure, Acceleration, Humidity), Parallel on-board camera, Flash, Battery Backup etc.
Responsible for Adding and selecting components, Creating a Schematic, Design of Board Layout.
Next Phase : Sensor Nodes for different applications
Client : ncore Technology Solutions.
Remote Monitoring and Control of Air-Conditioner Unit with GSM Module
–
♦ Challenge:
Research project was taken as the final year project. The Diagnosing of Air Conditioner can be done from remote place to find different faults in the system and sent them through GSM network to distant user.
♦ Finding faults as a fluctuations or a GAS leakage in an AC was the prime task of the project along with controlling of Air-conditioner using SMS sent by user.
Developed JAVA mobile application for the easiness of the distant user to control the AC and to know faults in AC.
♦ This project completed successfully meeting all requirements.
Hardware and Tools:
MIcrocontroller : PIC18F4520
RS232, RS485 Interface
MODBUS Protocol
GSM Module : SIMCOM
Current Transformer
PCB Design: Altium Designer.
Developed my own customized Development board for PIC18F4520.
Developed Relay Driver Board working on 32A T9A Relays.
Developed Rectified Power supply on Relay Board, which powered whole system.
Software : MPLAB IDE for Embedded C (HITECH C Compiler)
Research project was taken as the final year project. The Diagnosing of Air Conditioner can be done from remote place to find different faults in the system and sent them through GSM network to distant user.
♦ Finding faults as a fluctuations or a GAS leakage in an AC was the prime task of the project along with controlling of Air-conditioner using SMS sent by user.
Developed JAVA mobile application for the easiness of the distant user to control the AC and to know faults in AC.
♦ This project completed successfully meeting all requirements.
Hardware and Tools:
MIcrocontroller : PIC18F4520
RS232, RS485 Interface
MODBUS Protocol
GSM Module : SIMCOM
Current Transformer
PCB Design: Altium Designer.
Developed my own customized Development board for PIC18F4520.
Developed Relay Driver Board working on 32A T9A Relays.
Developed Rectified Power supply on Relay Board, which powered whole system.
Software : MPLAB IDE for Embedded C (HITECH C Compiler)
Intelligent Security Systems using Infrared Camera using Convex Hull Algorithm and LabVIEW
A part of our research in "Real time security systems" we analysed how LabVIEW can be helpful in achieving the accuracy.
Analysis were done and achieved good results.
Analysis were done and achieved good results.
Vehicle Tracking and Surveillance
♦ Challenge:
To design the PCB which keeps tracking of vehicles and control by different sensors. To interface GPS and GPS modem.
♦ Action:
The vehicle equipped with GPS and GPRS module all time connected with remote server and data logged into the memory card on the vehicle for the backup.User friendly interface to download logged files. Support for Android Application, iOS application for remote user. Engine condition, temperature, speed logging. Shut off valve sensor for fuel-loading trucks to log time of opening valves.
To design the PCB which keeps tracking of vehicles and control by different sensors. To interface GPS and GPS modem.
♦ Action:
The vehicle equipped with GPS and GPRS module all time connected with remote server and data logged into the memory card on the vehicle for the backup.User friendly interface to download logged files. Support for Android Application, iOS application for remote user. Engine condition, temperature, speed logging. Shut off valve sensor for fuel-loading trucks to log time of opening valves.
Research in Wireless Power Transmission(Padless)
– Present
This research was done to fulfill my enthusiasm in the field of wireless Technologies. I had the idea to explore this topic since 2006 when I was in the high school.
I was eager to research in this field when I get the complete knowledge about electronics, wireless tachnologies and Antennas to be used in this Project so I started this research in the year of 2011 and I have explored the areas, applications and different Technical Stuffs.
I will be working and documenting this research uptill the satisfactory work is done.I will keep exploring the latest innovations in this field.
♦ Challenge:
Generally this is not the new topic, this topic is been researched since 1953, the challenge in this research topic is the transmission range, medium, and the size of the antenna. The researchers are now using charging pads to charge the device but the real problem is to use this technology without any pad. Another mathod was to use tesla coil method but its impractical.
♦ Action:
I simulated and tried different methods that is Charge Pump method and the rectenna method. The further research will lead me to the mobile charging as a low power applications.
I was eager to research in this field when I get the complete knowledge about electronics, wireless tachnologies and Antennas to be used in this Project so I started this research in the year of 2011 and I have explored the areas, applications and different Technical Stuffs.
I will be working and documenting this research uptill the satisfactory work is done.I will keep exploring the latest innovations in this field.
♦ Challenge:
Generally this is not the new topic, this topic is been researched since 1953, the challenge in this research topic is the transmission range, medium, and the size of the antenna. The researchers are now using charging pads to charge the device but the real problem is to use this technology without any pad. Another mathod was to use tesla coil method but its impractical.
♦ Action:
I simulated and tried different methods that is Charge Pump method and the rectenna method. The further research will lead me to the mobile charging as a low power applications.
Java Application Development for Remote Controlling of Devices
–
♦ Challenge:
Being Electronics & Communication Engineer, I learnt JAVA script and other stuff related to that, I wanted to develop a mobile application for remote controlling the devices.
♦ Actions:
I started working with Netbeans and Notepad++ on the platform MIDP 2.1 and CLDC 3.0.
♦ Result:
The application is running successfully in Classic and touch phones.
Being Electronics & Communication Engineer, I learnt JAVA script and other stuff related to that, I wanted to develop a mobile application for remote controlling the devices.
♦ Actions:
I started working with Netbeans and Notepad++ on the platform MIDP 2.1 and CLDC 3.0.
♦ Result:
The application is running successfully in Classic and touch phones.
Automatic Curtain Controller
This project was the part of the Home automation system, Next step to making home fully autonomous, curtain itself decides to control the curtain track according to light and weather condition, It also can be controlled by remote control using RF communication.
Infrared Wireless Headphone
–
♦ Challenge:
"Infrared Wireless Headphone" was the project developed to learn the basics about electronics, amplifiers and different sensors and the enhancements used for the sensors.The basic concept was to do transmission through Infrared LED from a transmitter connected to a device to the receiver connected with the Headphone.
♦ Result:
This project was accomplished successfully in the 3rd Semester of my B.E. Electronics & Communication Engineering.
As electronics beginner, I learnt basics about PCB designing, etching and also mounting the several types of components on PCB.
"Infrared Wireless Headphone" was the project developed to learn the basics about electronics, amplifiers and different sensors and the enhancements used for the sensors.The basic concept was to do transmission through Infrared LED from a transmitter connected to a device to the receiver connected with the Headphone.
♦ Result:
This project was accomplished successfully in the 3rd Semester of my B.E. Electronics & Communication Engineering.
As electronics beginner, I learnt basics about PCB designing, etching and also mounting the several types of components on PCB.
Secured Door Lock
This is the project, introduced by D4 Automations, Ahmedabad, asking for development in high security, low cost door lock, asking for password through keyboard to unlock the door driving the servo motor. PCB & Circuit design was part of the work which I took to work on this project. Future expansions can be magnetic sensored door key.
Automatic Room Light Controller with Visitor Counter
–
♦ Challenge:
This project was developed to meet my enthusiasm for electronics and microcontrollers in the 5th Semester of my bachelors.The basic requirement of the project was to save the wastage of energy in the big enterprises and companies or even in the houses. The application of the project was to count the visitors and switch off the lights if there are no visitors in the room.
♦ Result:
The project was using AT8051 microcontroller and the Different TSOP sensors and timing ICs.
In this project I learnt to make the professional PCB and the Microcontroller Programming (i.e.C Lang) and different techniques of the troubleshooting the PCB problems.
This project was developed to meet my enthusiasm for electronics and microcontrollers in the 5th Semester of my bachelors.The basic requirement of the project was to save the wastage of energy in the big enterprises and companies or even in the houses. The application of the project was to count the visitors and switch off the lights if there are no visitors in the room.
♦ Result:
The project was using AT8051 microcontroller and the Different TSOP sensors and timing ICs.
In this project I learnt to make the professional PCB and the Microcontroller Programming (i.e.C Lang) and different techniques of the troubleshooting the PCB problems.
2 comments:
Dude! Stud!
Pro _/\_
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