Home Case Studies QR-Based Lost & Found and Family Reunification System for Trinetra 24/7
CASE STUDY Public Safety & Security

QR-Based Lost & Found and Family Reunification System for Trinetra 24/7

A QR-based Lost & Found reunification platform that helps identify and reconnect children & senior citizens separated from their families in crowded public places.

Industry Public Safety & Security

The Challenge

Large public gatherings, religious events, yatras, festivals, railway stations, and other crowded places can make it difficult for families to stay connected.

When a child, senior citizen, or any individual gets separated from their family, every second matters. Traditional identification and communication methods can be slow, especially when the person is unable to communicate their details or does not know how to reach their family.

Key challenges included:

  • Difficulty in identifying lost or separated individuals
  • Limited access to emergency and family information to contact
  • Delays in connecting individuals with their families
  • Challenges in managing lost-and-found cases in large crowds
  • Dependence on manual identification and communication



Our Solution

AaiNova designed and developed Trinetra 24/7, a QR-based Lost & Found and Family Reunification system in the form of a mobile application and a website that connects individuals with their registered information and emergency contacts through a unique QR code.

The solution combines QR identifier technology, digital profiles, family registration, and volunteer-assisted scanning to simplify the process of identification and reconnection.

1. Digital Registration & Family Profiles

Users can register their own details and add family members, particularly:

  • Children
  • Senior citizens
  • Family members requiring additional assistance

This creates a digital identity that can be accessed through the assigned QR code when required.

2. QR-Based Identification

Each registered individual is associated with a unique QR code. The QR code has an identification mechanism in situations where they may become separated from their family.

Print the QR code and attach it to a wristband or lanyard for the family member to wear.

3. Quick QR Scanning

When an individual is found or needs assistance, an authorized volunteer or helper can scan the Trinetra QR code.

The system provides access to the relevant registered information and contact mechanism, helping volunteers take the next step toward connecting the individual with their family.

4. Volunteer-Assisted Reunification

Trinetra integrates volunteers into the reunification process, creating a bridge between the individual and their family.

Instead of relying on manual identification, volunteers can use the QR system to facilitate faster access to the information required to initiate contact.

This is particularly valuable during:

  • Religious yatras
  • Large festivals
  • Public gatherings
  • Tourist destinations

The Results

Trinetra 24/7 provides a structured & technology-centric approach to helping people reconnect with their families in crowded places.

Key outcomes include:


  • Simplified identification through unique QR-based profiles
  • Fast and quick access to relevant information when assistance is required
  • Centralized family and emergency contact information
  • Volunteer-assisted connection between separated individuals and families
  • A scalable solution for large gatherings and public spaces
  • Improved preparedness for families travelling with children and senior citizens
  • A digital alternative to completely manual Lost & Found processes

Trinetra 24/7 demonstrates how technology can address a real-world challenge beyond conventional business applications.

By combining QR technology with digital identity, family information, and volunteer-assisted support, AaiNova developed a solution focused on one meaningful outcome: helping people find their way back to their loved ones.

Whether at a religious gathering, festival, railway station, tourist destination, or large public event, Trinetra provides a simple digital connection when it matters most.

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by Nikhil Bhandari Full Stack Development
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