Developing Software and infrastructure for enabling Schlumberger's Industrial Internet of Things (IIoT)- LT Smartmesh IP Dust (wireless mesh networking)- Firewall testing including DPI

Neutron Generator Controller firmware (2015)•Barebones OS with RS485 Communication•Implemented control loops for each of the multiple control parameters of the system.•Demonstrate system operation stability through stress testing•Ensure code quality and stability with unit testing and regression testing•Software delivered at regular intervals with no customer issuesGamma Ray spectroscopy detector support (2015)•Implemented memory logging of control parameters to provide better startup performance between power cycles•Implemented extended spectrum acquisitionPower supply test station (2014)•Finalized the test procedure and peer reviewed it•Identified safety hazards and mitigated them•Ensured the test station deployment did not impact manufacturing productionSPI Module (2014)•Designed, and implemented a protocol for an SPI interface•Unit tested the modules using CppUTest•Validated the interface with the counter part hardware

Viscosity Sensor (2008-2010)•Designed a unique and reliable PWB solution to fit inside an extreme small space.•Authored reliable embedded software which coordinated sensor control, acquisition, processing and communication•Implemented an embedded friendly algorithm to decode the sensor waveformPiezoelectric transducer load detection algorithm (2012)•Proposed a creative solution to address a safety critical situation, avoiding a hardware change.•Implemented, tested and distributed the embedded software modification Ultra high precision clock (15PPB) calibration scheme (2013)•Proposed an innovative method to improve calibration accuracy of the clock crystal.•Demonstrated the concept and drew the implementation plans.

Experimental prototype video camera (2000)•Completed the embedded software for the unit.•Field tested the unit; illustrated it's capabilities and limitationsMultiphase flow meter for oilfield wireline (2001-2003)•Design the digital and analog schematic PWB•Design, implement and test the embedded software •Utilized FPGA strengths to offload tasks from the 8bit 80C51 •Implemented realtime control, acquisition and processing of 17 sensors @15Hz acquisition rate.•Implemented measurement quality indicators including waveform snippets.Motor control (2003)•Implemented a full H-bridge driver.•Designed a "floating" ground phase to extend the power capabilities of the driverGeneric Controller board (2003)•Designed a multipurpose controller board; reused in more than a dozen applications.Exposition Booth to illustrate multiphase measurements•Wrote the hardware control and CAN communication•Integrated with openGL graphics counterpart used to recreate the multiphase scene.Surface system to acquire and decode the signals from an optical wireline tool(2003-2005)•Designed and realized the daughter PWB for optical receivers and signal conditioning•Proposed and implemented the multilevel pattern to discern rotation direction as well as speed•Correctly identified noise source as optical interference rather than electrical perturbations •Introduced a gas reference as a method to calibrate the optical wavelengths of the system. •Decoded the gas adsorption pattern providing better wavelength accuracy.•NI acquisition cards were used and the application was in LabVIEW.Pressure Sensor (2005-2007)•Oversaw the digital design of the ASIC•Tested the ASIC design on an FPGA (found and resolved bugs)•Wrote the hardware modules to operate the device (Acquisition, coprocessor, SPI, RS232)•Characterized the ASIC to various conditions such as temperature and battery voltage.

Automatic Depth Correction application (1996)•Wrote a correlation algorithm to automate the depth alignment of logs of the same well based on gamma-ray log traces.Color Calibration (1996)•Generated a RGB to CMYK transform to correct for color innacuracies in a color plotter.Proof of concept log viewer program (1997)•Illustrated in a few weeks a proposed software to display and scroll through logging dataProof of concept spread spectrum communication (1997)•Implemented and tested a circuit to illustrate the capabilities of spread spectrum technologyEmbedded software for a Cement mapping tool (1998)•Designed, developed and tested the embedded software on a 80C51 processor with an integrated CAN controller.Embedded software for an experimental video camera tool (1999)•Designed, developed and tested the embedded software on an 80C51 based processor.