Custom Business Management / ERP Software

Year: 2025

Category: Software Engineering | ERP | Digital Transformation

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Overview

Designed and developed a lightweight ERP system for small-to-medium businesses using C# and SQL Server, replacing manual paperwork and spreadsheets.

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 IMAGE 1 

 

Figure 1: Secure login interface of the custom ERP system.

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Core Features

• Customer & supplier management

• Product & inventory tracking

• Automated invoicing & billing

• Daily sales and profit dashboard

• Secure local SQL database

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 IMAGE 2 

 

Figure 2: ERP dashboard showing sales, and performance metrics

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Technology Stack

• C# (.NET)

• Windows Forms / WPF

• MS SQL Server

• RDLC / Crystal Reports

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Deployment Model

• Offline EXE installer

• Local or network-based setup

• No subscription dependency

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 IMAGE 3 

 

Figure 3: Invoice generation and reporting module.

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Business Value

• Reduced paperwork and errors

• Faster billing and reporting

• Improved data accuracy

• Scalable for future customization

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Automated LPG Cylinder Handling Sub-System

Figure 1: Automated LPG cylinder handling sub-system integrated with conveyor.

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Year: 2023

Category: Industrial Automation | Mechanical Design | Pneumatics

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Project Overview

Developed an automation sub-system for LPG cylinder filling lines to prevent cylinder jamming, reduce manual handling, and improve operational safety.

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Problem Statement

Defective or deformed LPG cylinders were getting stuck during conveyor transfer, causing:

• Line stoppages

• Safety risks

• Increased manual intervention

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Engineering Solution

Designed a pneumatically actuated sliding base mechanism integrated with sensors and control logic to ensure smooth cylinder transfer.

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System Components

• Pneumatic actuators & solenoid valves

• Proximity sensors

• Conveyor integration

• Microcontroller-based control panel

• Mechanical sliding base structure

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My Role

• Mechanical design & analysis

• Control logic development

• Sensor-actuator integration

• System testing and optimization

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Results

• Operational accuracy improved from ~80% to ~97%

• Manual handling significantly reduced

• Enhanced worker safety and line efficiency

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Industry Impact

• LPG filling plants

• Automated material handling systems

• Safety-critical industrial automation

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Obstacle Avoiding & Manually Controlled Mobile Robot

Year: 2019
Category: Robotics | Embedded Systems | Automation

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Project Summary

Designed and built an Arduino-based autonomous mobile robot capable of detecting and avoiding obstacles in real time, with optional manual control via Bluetooth.

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 IMAGE 1 

 

Figure 1: Autonomous mobile robot prototype with ultrasonic sensors.

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Problem Statement

Enable a mobile robot to navigate unknown environments safely without continuous human supervision.

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System Architecture

• Arduino Uno as main controller

• Ultrasonic sensors (HC-SR04) for distance measurement

• Servo motor for environmental scanning

• L293D motor driver for wheel control

• Bluetooth module (HC-05) for manual override

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Figure 2: Android app

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Functional Modes

Autonomous Mode

• Real-time obstacle detection

• Automatic direction selection

• Collision-avoidance logic

Manual Mode

• Smartphone-based control via Bluetooth

• User override for navigation

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Engineering Highlights

• Multi-sensor coordination to reduce blind spots

• Dynamic path decision based on distance comparison

• Fail-safe reverse and re-routing logic

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 IMAGE 3 

 

Figure 3: Block diagram showing sensor, controller, and motor driver integration.

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Results

• Collision-free navigation in dynamic environments

• Improved maneuvering accuracy

• Cost-effective and modular robotic platform

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Industrial Relevance

• Inspection robots

• Hazardous environment monitoring

• Autonomous logistics systems

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Wireless Power Transfer System (Prototype)

 

Figure 1: Wireless power transfer prototype with primary and secondary coils.

Year: 2016

Category: Electronics | Energy Systems | R&D

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Project Overview

Designed and demonstrated a wireless electricity transfer prototype using electromagnetic induction to power small loads without physical electrical connections.

This project was developed to understand the fundamentals behind modern wireless charging systems.

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Engineering Objective

To validate short-range wireless power transmission using low-cost electronic components and demonstrate feasibility for educational and experimental applications.

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Technical Approach

• High-frequency switching circuit using an NPN transistor

• Primary and secondary copper coils tuned for resonant coupling

• DC power input (9–12V)

• Load testing using LED and low-power bulbs

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Tools & Components

• NPN Transistor (2N2222 / BD139)

• Copper coils (Primary & Secondary)

• DC Power Supply

• Passive components (resistors, switch)

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Results

• Successfully powered an LED wirelessly over short distance

• Stable induction achieved within designed parameters

• Demonstrated core principles used in commercial wireless chargers

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Key Learnings

• Coil alignment and frequency tuning are critical

• Power loss increases rapidly with distance

• Heat management is important for switching components

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