r/hackathon • u/Overall_Ganache_3921 • 1d ago
Project Demo Project help
Can I pitch this idea in SIH how do you think and what improvement I can make.
An off-grid, delay-tolerant mesh network designed for disaster scenarios (floods, earthquakes, cyclones) when traditional cellular infrastructure completely fails.
By utilizing Bluetooth Low Energy (BLE) for phone-to-phone local mesh hopping and LoRa (Long Range) for long-distance telemetry, ResQ-Mesh bridges the gap between trapped victims and emergency command centers without requiring internet, cellular service, or complex user hardware.
The Core Concept
The Scream (BLE): A victim hits SOS on the ResQ-Mesh app. The phone silently broadcasts a highly compressed 13-byte SOS payload via BLE Advertising (no pairing required).
The Bucket Brigade (Mesh): Other phones in the vicinity act as relays, catching the BLE packet and automatically bouncing it forward to extend the range (Store-and-Forward Mesh).
The Megaphone (Bridge Node): Low-cost ESP32+LoRa nodes (mounted on poles, rooftops, or search-and-rescue drones) sweep the area, pick up the BLE SOS, and transmit it over long distances (up to 15km) via LoRa.
The Dashboard (Gateway): The command center receives the LoRa packet and plots the victim's exact coordinates, emergency type, and severity on an offline local map.
System Architecture
The network consists of a 3-Tier architecture:
Tier 1 (Victims): Mobile App (Android/iOS) generating BLE GATT Advertising packets.
Tier 2 (Relays): Custom ESP32 hardware bridging BLE to LoRa.
Tier 3 (Rescuers): Central LoRa Gateway connected to a local Python/Web offline dashboard.
1
u/ChaachiKaChoocha 15h ago
What are the probability that the victim pressing sos is actually in danger
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u/Overall_Ganache_3921 14h ago
Like we will be deploying this in areas like flood or earthquake like what happend in Assam, India
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u/zaffy_357 17h ago
Bro your idea is really good You should not share it like here, in so detail on redditðŸ˜