Trek-Shield
A Safe Trekking App That Works Without Network
Presented by: Skyline 1.0
College: Govt. Degree College Dharamshala |
Date: 20 April 2026
Problem Statement – 3 Major Risks in Trekking
Every year, thousands of trekkers visit places like Triund and Kareri in Himachal Pradesh, but face serious challenges that compromise their safety and wellbeing.
No Network Connectivity
At high altitudes, mobile networks stop working—no calls or internet access. Trekkers lose all communication capabilities in critical moments.
Risk of Getting Lost
Fog, rain, or unclear trails can cause trekkers to lose direction. Without proper navigation tools, finding your way back becomes nearly impossible.
Lack of Emergency Communication
In case of injury or danger, contacting rescue teams becomes nearly impossible without reliable communication channels.
Our Solution – Trek-Shield App
Trek-Shield is a 100% offline Android app designed to ensure safety even in remote mountainous areas where traditional communication fails.
Offline GPS Navigation
Download maps before the trek and track your location without internet connectivity.
One-Tap SMS SOS
Instantly send your location to rescue teams and family with a single button press.
Fully Offline Functionality
Works without internet once set up—no dependence on network signals.
Feature 1 – Offline Map & Trail Alert System
The Problem
No network means navigation fails, and trekkers get lost in unfamiliar terrain.
The Solution
01
Download Map Before the Trek
Get the trail map while you have internet access in the base camp or town.
02
GPS Tracks Location Offline
Continuously monitors your position using satellite signals without network.
03
Alerts When Deviating
Instant notification with vibration and sound if you move away from the path.
Feature 2 – Emergency SMS SOS System
When seconds count, Trek-Shield ensures your distress signal reaches the right people immediately.
Press and Hold SOS Button
Hold the SOS button for 3 seconds to trigger emergency protocol.
Automatic Location Sharing
App generates SMS with user name, GPS coordinates, time, and emergency message.
Sent to Multiple Recipients
Message delivered to 2 emergency contacts, police, and rescue team simultaneously.
Key Advantage: No internet required—only minimal signal is enough to send critical emergency messages.
Technology Stack – How Trek-Shield Works
Trek-Shield is built using proven, reliable technologies that work seamlessly in offline mode without any server dependency.
Component
Technology
Function
App Platform
Android (Kotlin)
UI & core logic
Offline Maps
MapLibre + OpenStreetMap
Map rendering
Location Tracking
Phone GPS Sensor
Real-time tracking
SOS System
Android SmsManager
Sends SMS alerts
Data Storage
Room Database
Stores maps & user data
Fully open-source architecture
No paid APIs required
No server dependency
Impact – Why Trek-Shield Matters
Life-Saving Solution
Reduces risks of getting lost and delayed rescue operations in critical situations.
100% Offline Reliability
Works even in complete network blackout zones where other apps fail.
Faster Rescue Operations
Accurate GPS location ensures quick response from authorities and emergency services.
Lightweight & Accessible
Around 20MB size, runs smoothly on most Android devices without high-end specifications.
Future Scope
Trek-Shield has tremendous potential for expansion and integration with government and tourism departments.
1
Expand to More Treks
Include Kareri Lake, Indrahar Pass, Lahesh Cave, and other popular trekking routes across Himachal Pradesh.
2
Integration with Tourism Department
Partner with Himachal Tourism for wider adoption and official endorsement.
3
Rescue Monitoring Dashboard
Real-time tracking system for authorities to monitor all registered trekkers simultaneously.
Project Summary
What We Built
A fully offline Android app with GPS navigation and SOS emergency system.
Target Users
Trekkers, tourists, and adventure groups in Himachal Pradesh.
Problems Solved
Key Highlights
20MB
App Size
15MB
Map Size
4
SOS Recipients
100%
Offline Capability
"Trek-Shield empowers trekkers to explore the majestic Dhauladhar range with confidence, knowing they have a reliable safety companion even when the network disappears."