This System Context Diagram provides a high-level view of the Mind-For-The-Blind system, showing how it interacts with users and external systems.

The central system (Mind-For-The-Blind Mobile Application)

1. Visually Impaired Users – Individuals who rely on the app for assistance. 2.Helpers/Navigators – People assisting visually impaired users through video chat.

1. Currency Detection Module – Identifies currency notes using machine learning.

2. AI-Powered Personal Assistance – Provides voice-based responses.

3. Video Call Module – Enables real-time communication between users and helpers.

4. Cloud Server/Database – Stores user authentication data securely.

This container diagram represents the architecture of the "Mind for the Blind" mobile application

Visually Impaired User

• A blind user who accesses the application for various assistive services.
• Logs into the mobile app via biometric authentication.
• Can use services like currency detection, AI assistant, and helper navigation.

Helper

• A visually paired user who assists the blind person with navigation.
• Logs into the app and joins a video chat room to guide the visually impaired user.
• Helps in real-time through video communication.

1. Mobile App (Android/iOS)

• The central interface that grants users (both visually impaired and helpers) access to assistive services.

• Provides an intuitive UI with large buttons and voice interactions.

• Routes user actions to respective services.

2. Database

• Stores user information and user types (blind person or helper).

• Manages authentication and biometric login credentials.

3. Currency Detection Module

• Uses a Machine Learning (ML) model to detect currency denominations from camera input.

• Converts detected currency details into audio feedback for the user.

4. Helper Navigation Module (Video Call Module)

• Provides real-time video chat between the blind user and their helper.

• Ensures secure password-based room authentication before allowing users to connect.

• Used by blind users to navigate safely with assistance.

5. AI Assist Mode (AI Chatbot)

• An AI-powered chatbot that interacts with users through verbal input and output.

• Helps users with general queries and day-to-day assistance.

User Registration & Login

• Both visually impaired users and helpers register and log in via biometric authentication.

• The database stores user credentials.

• Accessing the Mobile App

a) Currency Detection

b) Helper Navigation

c) AI Assistant Mode