3.PROBLEM DEFINITION - N-div-2026-27-Odd/Repo-02 GitHub Wiki
Poojari Bot Project
3. Problem Definition
3.1 Need Statement
Design a portable, semi-automatic Poojari Bot that assists users in performing basic pooja activities. The robot should be lightweight, economical, eco-friendly, aesthetically pleasing, easy to use, and capable of handling selected pooja materials and performing controlled aarti movements.
The Poojari Bot should have a portable structure that can be moved conveniently from one place to another. Its semi-automatic operation should allow users to provide commands while the robot performs selected activities through programmed instructions. The system will integrate an ESP32 controller, sensors, motors, actuators, a gripper mechanism, and a rechargeable battery.
3.1.1 Questions and Answers
| Sl. No. | Question | Answer | Objective | Function | Constraint |
|---|---|---|---|---|---|
| 1 | Should the machine be automatic? | Semi-automatic | ✓ | ||
| 2 | What is the decided budget? | ₹18,000 (estimated) | ✓ | ||
| 3 | Should the robot be portable? | Yes | ✓ | ||
| 4 | What source of power should it consume? | Rechargeable electrical battery | ✓ | ||
| 5 | What activities should the robot perform? | Assist with basic pooja and aarti | ✓ | ✓ | |
| 6 | What should be the dimensions of the robot? | Compact and space-efficient | ✓ | ||
| 7 | What should the approximate weight be? | As light as possible | ✓ | ||
| 8 | How should the robot look? | Aesthetically pleasing | ✓ | ||
| 9 | What is the time limit to prepare the robot? | 5 months | ✓ | ||
| 10 | How should the user control the robot? | Manual commands with programmed actions | ✓ | ||
| 11 | What type of mechanism is required? | Motor-driven movement mechanism | ✓ | ||
| 12 | Should the robot be eco-friendly? | Yes | ✓ | ||
| 13 | How should the robot be maintained? | As easily as possible | ✓ |
3.2 Basic Survey and Requirements
The Poojari Bot is designed to assist users in performing routine pooja activities conveniently. The robot should combine portability, simple operation, controlled movement, and safe handling of pooja materials.
Basic Requirements
- A lightweight and portable structure.
- Semi-automatic operation with user commands.
- An ESP32 microcontroller for processing commands.
- Motors and actuators for controlled movement.
- Sensors for detecting obstacles and nearby objects.
- A gripper mechanism for lightweight pooja materials.
- A controlled aarti plate movement mechanism.
- A rechargeable battery-powered system.
- An economical and easy-to-maintain design.
- A stable structure with appropriate safety measures.
- A motor driver for controlling suitable motors.
- A transmission mechanism using gears, belts, or linkages.
- A simple interface for user commands.
- Reliable wiring and power management.
- Easy access to components for maintenance and repair.
3.3 Identifying Client's Objectives
| Sl. No. | Objectives |
|---|---|
| 1 | Semi-automatic operation |
| 2 | Lightweight design |
| 3 | Economical construction |
| 4 | Eco-friendly operation |
| 5 | Portable structure |
| 6 | Easy to use |
| 7 | Safe operation |
| 8 | Aesthetically pleasing appearance |
| 9 | Easy maintenance |
| 10 | Controlled aarti movement |
| 11 | Reliable performance |
| 12 | Efficient battery usage |
| 13 | Simple user control |
| 14 | Compact construction |
| 15 | Easy assembly and repair |
Problem Definition Version 1.1
Design a semi-automatic, lightweight, aesthetically pleasing, economical, eco-friendly, portable, and easy-to-use Poojari Bot that assists users in performing basic pooja activities.
3.4 Identifying Constraints
| Sl. No. | Constraints |
|---|---|
| 1 | Estimated budget of ₹18,000 |
| 2 | Compact dimensions |
| 3 | Lightweight construction |
| 4 | Battery capacity and operating time |
| 5 | Development period of 5 months |
| 6 | Availability of components |
| 7 | Safe handling of pooja materials |
| 8 | Stability during movement |
| 9 | Motor torque and load capacity |
| 10 | Limited space for mounting components |
| 11 | Electrical power consumption |
| 12 | Mechanical complexity |
| 13 | Availability of fabrication facilities |
| 14 | Reliability of moving mechanisms |
| 15 | Safe operation near people and religious objects |
Problem Definition Version 1.2
Design a portable, semi-automatic, lightweight, aesthetically pleasing, economical, and eco-friendly Poojari Bot that assists with basic pooja activities within an estimated budget of ₹18,000 and a development period of 5 months.
3.5 Establishing the Functions
| Sl. No. | Functions |
|---|---|
| 1 | Consumes electrical energy as a power source |
| 2 | Receives manual commands from the user |
| 3 | Processes commands using the microcontroller |
| 4 | Detects obstacles using sensors |
| 5 | Controls movement through motors and actuators |
| 6 | Holds and releases lightweight pooja materials |
| 7 | Performs controlled aarti plate movements |
| 8 | Transfers motion through gears, belts, or linkages |
| 9 | Supplies power through a rechargeable battery |
| 10 | Stops movement when a safety condition is detected |
| 11 | Controls motor speed and direction |
| 12 | Provides stable support for the robot's mechanisms |
| 13 | Allows the user to start and stop programmed activities |
| 14 | Manages electrical power distribution |
| 15 | Supports easy maintenance and component replacement |
Problem Definition Version 1.3
Design a portable, semi-automatic Poojari Bot that receives user commands, processes them through an ESP32 microcontroller, assists in handling pooja materials, performs controlled aarti movements, detects obstacles, and operates using a rechargeable battery. The design should be lightweight, economical, easy to use, reliable, and safe for the intended application.
3.6 Estimated Project Budget
The following budget is a preliminary estimate for developing a student-level portable, semi-automatic Poojari Bot prototype.
| Sl. No. | Component / Activity | Estimated Cost |
|---|---|---|
| 1 | ESP32 controller and electronics | ₹700 |
| 2 | Motors and actuators | ₹2,500 |
| 3 | Motor drivers and control circuits | ₹600 |
| 4 | Sensors | ₹500 |
| 5 | Rechargeable battery and power management | ₹1,200 |
| 6 | Portable chassis and body fabrication | ₹2,500 |
| 7 | Robotic arm and gripper mechanism | ₹2,000 |
| 8 | Aarti plate mechanism | ₹1,000 |
| 9 | Wires, connectors, fasteners, and mounting materials | ₹700 |
| 10 | Assembly and fabrication expenses | ₹2,000 |
| 11 | Testing and spare components | ₹1,000 |
| 12 | Contingency allowance | ₹3,300 |
| Total Estimated Budget | ₹18,000 |
Note: These costs are planning estimates, not confirmed supplier quotations. Actual costs depend on component specifications, fabrication requirements, and the final mechanical design.
3.7 Project Development Timeline
The proposed development period for the Poojari Bot is 5 months.
| Month | Activities | Expected Outcome |
|---|---|---|
| Month 1 | Requirement gathering, research, conceptual design, and component selection | Finalized requirements and initial design |
| Month 2 | Mechanical design, chassis fabrication, and component procurement | Prepared chassis and collected components |
| Month 3 | Electronics assembly, ESP32 programming, and motor control | Working electronic and control system |
| Month 4 | Gripper integration, aarti mechanism integration, and semi-automatic operation | Integrated robotic prototype |
| Month 5 | Testing, troubleshooting, improvements, and final demonstration | Tested and documented prototype |
3.8 Technical Components and Their Functions
| Sl. No. | Component | Function |
|---|---|---|
| 1 | ESP32 Controller | Receives commands, processes sensor signals, and controls programmed actions |
| 2 | DC Motors | Provide rotational movement |
| 3 | Stepper Motors | Provide precise angular movement |
| 4 | Servo Motors | Control the angular position of the arm or gripper |
| 5 | Sensors | Detect nearby objects and obstacles |
| 6 | H-Bridge Motor Driver | Controls the direction of compatible DC motors |
| 7 | Rechargeable Battery | Supplies portable electrical power |
| 8 | Gripper Mechanism | Holds and releases lightweight pooja materials |
| 9 | Aarti Mechanism | Produces controlled circular movement of the aarti plate |
| 10 | Transmission Mechanism | Transfers motion through gears, belts, or linkages |
| 11 | Chassis and Frame | Supports the components and provides structural stability |
| 12 | Power Management System | Distributes electrical power to the controller and actuators |
3.9 Safety Requirements
- The robot should remain stable during operation.
- Moving parts should be guarded wherever practical.
- The system should include an accessible emergency stop or power cutoff.
- Electrical connections should be insulated and protected against short circuits.
- The battery should be used with suitable charging and protection circuitry.
- The gripper should hold lightweight items securely.
- Initial aarti mechanism testing should use an unlit, lightweight plate.
- A real flame should not be used during unattended operation; any live-flame demonstration requires appropriate adult supervision and fire-safety precautions.
3.10 Final Problem Definition
Design and develop a portable, semi-automatic Poojari Bot that assists users in performing basic pooja activities through programmed movements and user commands. The robot should integrate an ESP32 controller, sensors, motors, a gripper mechanism, a controlled aarti plate mechanism, a transmission system, and rechargeable power. It should be lightweight, economical, reliable, easy to maintain, and safe for its intended application, with an estimated budget of ₹18,000 and a development period of 5 months.