Objective:

To create an augmented reality (AR)-based learning platform that enables engineering students to visualize complex technical diagrams (mechanical parts, electrical circuits, civil structures, etc.) in 3D, enhancing spatial understanding and concept clarity.

Key Features:

Student Panel:

• User registration/login

• Browse subjects and diagram topics

• Scan QR codes or markers to trigger AR content

• View and interact with 3D engineering models (zoom, rotate, explode view)

• Access related notes, videos, and definitions

• Quiz section based on diagrams

• Bookmark and save models for revision

Instructor Panel:

• Upload 3D models (.glb/.fbx/.obj format)

• Link models with subjects and topics

• Add textual and video explanations

• Create and manage quizzes or labels on models

Admin Panel:

• Manage users, content, and courses

• Approve or reject uploaded AR content

• Analytics on student engagement with AR modules

• Manage quizzes, results, and certificates

Tech Stack:

Workflow (Step-by-Step):

1. User Registration & Login

• Student/instructor registers with role and basic details.

• Authenticated using JWT or Firebase Auth.

2. Accessing AR Modules

• Student browses available subjects (e.g., Mechanical → Gear System).

• Each topic has a linked AR marker (QR code or image marker).

• Student scans the marker using their smartphone camera or web AR view.

3. AR Model Interaction

• 3D diagram loads in AR view using AR.js + Three.js.

• Student can rotate, zoom, and isolate parts (e.g., rotor, stator, etc.).

• Labels, definitions, and annotations appear when components are clicked.

4. Instructor Upload Process

• Instructor uploads a 3D model and links it to a topic.

• Adds educational descriptions and diagrams (notes/PDFs).

• Option to overlay voice narration or video guide.

5. Quizzes and Self-Assessment

• Each AR lesson includes a multiple-choice quiz or labeling exercise.

• Students complete the quiz and get instant feedback.

• Scores are tracked and stored in the database.

6. Performance Tracking

• Students can see progress reports, quiz scores, and models viewed.

• Instructors can view engagement analytics per diagram.

7. Admin Control

• Admin reviews and approves instructor uploads.

• Can remove outdated/inaccurate models.

• Generates monthly reports on student interaction and performance.

Optional Advanced Features:

• Voice-based navigation in AR interface

• Hand gesture controls for model manipulation

• AR Live Class mode where multiple students view the same model together

• Multilingual annotations on diagrams

• Offline mode for pre-downloaded AR models

Outcome:

This AR-based platform enhances experiential learning by turning flat textbook diagrams into immersive 3D experiences. It improves understanding of spatial relationships and mechanisms, especially in engineering domains like mechanical, civil, and electrical.