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Career Objective:
I am looking for a position in the areas of Embedded Systems, Embedded Programmer to achieve the personal satisfaction of being a part to the growing System to help the organization to achieve the desired objective.
• Embedded Systems – Battery Chargers Automation, Remote monitoring systems, Microcontroller based Digital Inverters, TCP/IP Protocols, RS485/RS232 based data logging & monitoring Systems, also Mimic panels for displaying various parameters & Isolating power plants through PFC based on Fault conditions and Microcontroller based battery chargers (Single and Three phase).
• Experience on: Microchip PIC16, 18, dsPIC, Atmel AVR microcontrollers, Intel 87C196, Rabbit RCM2000, 2200 microprocessors and Freescale 56F8xxx DSC’s.
• GUI & Database Related Application - Front-ends Developed for the online monitoring, data logging, Graphical representation, History storing & trending of the Battery Chargers Automation using VB.net and Project done for Monitoring the Battery chargers Status form remote system in the LAN using ASP.Net which is more useful for PPC department. Various parameters & alarms logging from remote SMPS power plant through Ethernet Protocols, SCADA Protocols and Battery Cell Monitoring Software up to 96 cells.
Education:
M.Sc (C.S) from S.V. University, TIRUPATI
B.Sc (C.S) from S.V. University, TIRUPATI
Microchip Master’s degree is awarded from Microchip Technology inc. November 2005.
Computer Proficiency:
Languages : Assembly Language, C, C++, VC++.
Operating Systems : Windows 9x / 2000 / XP, and Linux.
Databases : Oracle, SQL Server.
GUI : VB, VB.NET, ASP.NET, Crystal reports.
Professional Profile:
Amara Raja Power Systems Pvt. Ltd.
It is part of AMARA RAJA group of companies having turnover of Rs. 3000 Million with equity holding by M/s Johnson Controls Inc., USA. Pioneer and Market Leader in VRLA batteries (widely used for all Telecommunication, Railways and other industrial applications), SMPS based power plants, Conventional chargers, Home inverters, Distribution panels and also manufacturer of AMARON brand automotive batteries and OE Supplier to Daimler Chrysler, Ford, General Motors, Mahindra & Mahindra, Hyundai, Maruti and Tata Motors etc.,
Key Projects:
Project #0 : Conventional Chargers Standardization – Present Project.
Project #1 : Battery Formation Chargers Automation
Software : Ht-PIC C, ALP, VB.Net, ASP.NET, SQL Server, CADSTAR 6.0, Portal 98.
Role : Project Engineer - Micro-controller (PIC16F877A) Programming, Control Card Design and Front-end Design and Development. :
Microcontroller based Charger Circuit was developed which is controlled by PC through RS485 communication with ASCII Protocol. It used for charging the Battery based on the Specification Given by the Operator. Like this 240 individually operating charging circuits are connected and each one operating at different Current and Voltage settings. All 240 circuits are interlinked through RS485 and finally one pair of cables can be connected to PC through RS232. Through PC we able to send the required Current, Voltages and AH for individual Circuit. Charging is taking place based on Battery Temperature which is monitoring through one-wire network (on one-wire 240 sensors). We able to log parameters like Voltage, Current, AH, Temperature, completed time, Mode of charging from each circuit at specified intervals, online trending and history creation & history trending also possible and this data is maintained in remote server. And also we can able to monitoring from remote PC, which is connected in the network.
Project #2 : Micro-controlled based Home inverter & Home UPS.
Software : HT-PIC C Compiler, MPLAB-5.7
Role : Team Member - Micro-controller Programming and Control Card Design.
Home inverter is designed with the feature of LCD display for displaying various parameters & conditions for the all types 300VA, 650VA and 1250VA. Micro controller based auto changeover from mains to inverter and inverter to mains. And also Micro controller based battery charging with two modes of charging boost & trickle of constant current at any point of the AC input 170V to 275V. Inverter AC Output voltage at full load is 220V to 240V. Inverter Out put frequency is 50HZ ± 0.1.
Project #3 : Power Plant Alarms Transfer to SCADA system using TCP/IP Ethernet.
Software : Dynamic C Compiler, uC/OS-II, VB.
Role : Team Member – Microprocessor Programming and Control Card Design.
60 independent 48V Power plants are placed in 30 different metro-stations. All 60 power plants are connected to server through optical fiber network this server is always in listening mode. 48V power Plant is provided with the mini CSU which has an RS232 compatible serial port for communication to an external device. To make it compatible with SCADA system, an interface board is provided which give standard Ethernet TCP/IP interface. This is connected to 24 Ethernet switch at each station. When there is any alarm the interface unit collects the alarm data from the CSU through RS232 and converts this data into Ethernet and sends it to the SCADA system.
Project #4 : Digital Controller boards Test Zig Software
Software : C++.
Role : Programmer (Design & development)
Project to test Microcontroller based assemblies, used in products designed and/or manufactured by Amara Raja. The program simulates different parts of a real modular Power System, depending on Device under Test. If a controller of a Switch mode rectifier (SMR) is tested, a Controlle Supervisor Unit (CSU) operation is simulated. The simulation will involve SMR communication, and protocols used by PC Remote Monitoring program. Computer controlled fine output voltage adjustment, passive shearing adjustment and voltage demand calibration in Digital Secondary Controller Card (DSCC) test. Continuously monitoring of status.
Project #5 : Battery Cell Monitor
Software : HT-PIC C Compiler, VB.
Role : Project Engineer - (Design & development) Programming for AVR Atmega16, Front-end, Controlle Circuit Design. :
The Battery Cell Monitor (BCM) is an add-on module for the Controlle Supervisor Unit (CSU). It is used to monitor individual cells of a battery during float or equalization operation, or during a discharge. Each BCM unit is capable of monitoring up to 24 cells. Cell voltage setting can be 2V, 4V, 6V and 12V.
Project #6 : Remote Power Plant Controlling and Data Acquisition.
Software : ALP - MPLAB-5.7, Ht-Pic C, VB6.0, MS Access.
Role : Programming for PIC16F877 Microcontroller and User friendly front end in VB 6.0 which in Interface between PC and Remote Charger through RS485 communication with ASCII standard Protocol.
In this project I am monitoring 5 parameters INPUT VOLTAGE, INPUT CURRENT, BATTERY CHARGING CURRENT, OUTPUT VOLTAGE and OUTPUT CURRENT with Different Ratings. These parameters display in LCD as well as stored in PC. Communicating with PC by Serial port communication with GUI developed in VB. ASCII Communication protocol is developed for mutual communication b/n PC and Power plant. If any abnormal conditions occur in the system, Microcontroller responds automatically. Those conditions we can able to control through PC also.
Few projects in C, C++, ALP, VC++, VB, ASP and VS.Net.