When seconds
decide survival

APAWS is a solar-powered, mesh-connected warning network that reaches every barangay — even when power grids and phone signals fail. Built for the Philippines. Built for the last mile.

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Explore Features

Most disasters don't kill people.
Late warnings do.

Every year, floods sweep through communities with little to no notice. Landslides bury homes before residents can flee. Tsunamis reach the shore while phones remain silent. The tragedy isn't always the hazard — it's the gap between knowing and telling.
Traditional warning systems depend on cell towers, internet connections, and central power grids. In the exact moment disaster strikes, those are the first things to fail. APAWS was built to fill that gap — a rugged, self-powered, mesh-connected voice warning network that keeps working when everything else goes down.
The System

One network.
Every hazard.
Every barangay.

APAWS links a network of solar-powered warning stations across your LGU territory. Each station can blast sirens, play pre-recorded evacuation instructions, or relay your voice live — triggered from a single command center or operated independently on the ground.

Flood Typhoon Tsunami Landslide Volcanic Eruption Storm Surge
LoRaMesh RF Network
Stations communicate through a self-healing mesh radio network operating at 433 MHz or 915 MHz. If one node goes down, the signal reroutes automatically — with a range of up to 5 km per hop, no towers needed.
High-Power Horn Speakers
Four horn speakers per station, connected to a high-power audio amplifier. Loud enough for an entire barangay to hear — whether it's a siren blast, a recorded evacuation message, or your operator speaking live.
Solar Power System
Each station runs entirely on solar — with a panel, charge controller, and battery bank that keeps the system operational through nights, cloudy days, and full grid blackouts. No electricity bill. No downtime.
Command Center GUI
A simple Windows-based interface lets operators select individual stations or broadcast to all at once, choose between siren, pre-recorded message, or live microphone — and log every activation with a timestamp for accountability.
Local Control Fallback
No signal? No problem. Every station has a local control panel with a built-in microphone. Operators on the ground can trigger sirens or speak directly to the community without any remote connection.
built for everyday disaster

A warning for
every threat

From riverbanks to coastlines to mountainsides — APAWS was designed with the Philippine hazard map in mind.

🌊
Floods & Storm Surge

River gauge sensors upstream detect rising water levels. The moment thresholds are crossed, the APAWS command center pushes an alert. Within seconds, stations along the floodplain are broadcasting evacuation instructions — before the water reaches the first house. Coastal towns hit by storm surges get the same speed. The ocean doesn't wait. Neither should the warning.

Flood-prone barangays · Coastal communities
Live Signal Status
River Lvl
⚠ 85%
Rainfall
72%
Wind
60%
⚠ Flood Alert Triggered
Stations 01, 02, 03 broadcasting evacuation message
🌀
Typhoon Alerts

In the typhoon belt, it's not just wind speed that matters — it's how fast you can move thousands of people. APAWS pushes preemptive siren alerts and pre-recorded instructions across all stations simultaneously, hours before landfall.

Typhoon-belt municipalities
🏔
Landslide Zones

Mountain communities know the risk. When rainfall sensors cross critical thresholds, APAWS triggers targeted alerts to the stations nearest to the slope — giving residents in high-risk zones the few minutes they need to get to higher ground.

Upland & slope communities
🌋
Volcanic Eruption

Alert levels change fast. When PHIVOLCS raises the level, your command center can push rapid, clear evacuation orders to all zones around the volcano in seconds. No scrambling for radios. No waiting for cell signals. Just a clear, audible instruction to every community at once.

Permanent danger zones
THE CHALLENGE

Why Warning Systems Matter

In disaster-prone regions, early warning is the difference between life and death. Communities need reliable, fast, and resilient alert systems

Natural Disasters

Floods, typhoons, tsunamis, landslides, and volcanic eruptions can strike with little warning, threatening lives and property

Critical Response Time

A robust alerting system ensures early warning, which saves lives, reduces damage, and enables timely evacuations

Last-Mile Communication

Multi-function warning stations serve as critical last-mile communication tools when traditional infrastructure fails
SYSTEM FLOW

How APAWS Works

From command center to community alert in seconds

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Trigger Alert

Operator triggers alert from GUI at command center, selecting target stations and message type

LoRaMesh Transmission

Command center sends signal via LoRaMesh RF network to target warning stations

Station Receives & Confirms

Target stations receive command and send acknowledgement back to command center

Audio Playback

Arduino controller plays siren or selected voice message through amplifier

Community Alert

Audio is broadcast through 4 high-power horn speakers, reaching the entire coverage area

Local Fallback

If LoRaMesh fails, operators can activate alerts locally using on-site controls and microphone
TECHNOLOGY

Key Features

Enterprise-grade capabilities designed for mission-critical operations

LoRaMesh Network

Long-range RF mesh network for data and voice transmission with multi-hop relay support

2-5km range per hop (line-of-sight)
Voice compression for efficiency
Self-healing network topology
Self-healing network topology

Solar Power System

Complete solar power solution ensuring continuous operation even during blackouts

100-200W monocrystalline panels
MPPT charge controller
12V 100Ah deep-cycle battery
2-3 days standby power reserve

Dual Control System

Flexible control options for maximum reliability in any scenario

Remote control from command center
Local on-site control fallback
Live microphone broadcasting
Pre-recorded message library

Command Center GUI

Intuitive Windows-based interface for operators to manage alerts across territory

Select single, group, or all stations
Choose siren or voice messages
Monitor station responses in real-time
Print activity logs for compliance
HARDWARE

Warning Station Components

Rugged, field-tested components designed for harsh environments

RF Transceiver

LoRaMesh RF transceiver for voice and data transmission with mesh networking capability

Arduino Controller

Arduino MEGA controller for reliable command processing and audio playback management

Audio System

High-power audio amplifier with 4 weather-resistant horn speakers for maximum coverage

Microphone

Professional microphone for local live voice broadcasting when needed

Solar Panel

100-200W monocrystalline solar panel with MPPT charge controller

Battery System

12V 100Ah deep-cycle AGM or LiFePO₄ battery for extended standby power

Deployment

Installs anywhere. Covers everywhere.

Urban Areas

Mounted on barangay hall rooftops, covered courts, or public buildings. Blends into existing civic infrastructure with minimal footprint.

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Rural Communities

Steel post installations near community centers, schools, or chapels. Solar panel and battery designed for low-maintenance, long-duration field use.

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Coastal & River Zones

Positioned near hazard zones for maximum early-warning reach. Ruggedized for coastal salt air, flooding, and high-wind environments.

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Ready to protect your community?

Give your barangays the warning system they deserve

Talk to our team about deploying APAWS in your LGU. We'll walk you through station planning, coverage mapping, and everything your DRRM office needs to make it happen.

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