Centralized Road Accident Emergency Response Ecosystem

Automated Vehicle Crash Telemetry & Instant Dispatch Platform

Replacing fragmented phone calls with a single automated chain: In-Vehicle Impact Sensors → 5-Second Response Window → GSM Fail-Safe Alert → Nearest Ambulance Dispatch → Hospital Trauma Center Readiness.

Active Fleet Nodes
4
Incidents Processed
0
Empaneled Hospitals
2
Response SLA
< 45s

1. Live Operational Command Dashboards

Direct access to live dispatch control room, paramedic field units, hospital trauma command, and hardware simulator.

Super-Admin Hub

Manage IoT hardware devices, approve provider organizations, inspect forensic audit logs, and tune operational thresholds.

Open Admin NOC
Ambulance CAD Deck

Real-time emergency alert feed, race-protected case acceptance, hands-free voice clinical dictation, and corridor turn navigation.

Open Ambulance Deck
Hospital Command

Monitor inbound critical trauma cases, trauma bay allocator, real-time vector ECG waveform monitor, and speech briefing.

Open Hospital Center
Crash Rig Simulator

Simulate real-time MPU6050 accelerometer G-force impact, speed, impact angles, and interactive map coordinate trigger.

Open Simulator

2. Working Principle & Response Logic Workflow

Condition-gated crash verification followed by a 5-second occupant window and fail-safe autonomous dispatch fallback.

1
Impact Condition Check
Safety Gate: Impact sensors must confirm severe deceleration or rollover.

Buttons are inactive by default. This eliminates accidental presses, child touches, and prank alerts.

2
5-Second Window
Occupant Notification: Buzzer beeps and Red/Green status LED blinks ($T = 0s$ to $T = 5s$).

Gives conscious occupants an immediate visual and acoustic window to act.

3
Occupant Action Override
SAFE or SOS Button: Conscious driver or passenger decision.

Pressing SAFE cancels dispatch. Pressing SOS instantly accelerates alert packet.

4
Automatic Fail-Safe Alert
Unconscious Fallback: If no button is pressed after 5 seconds.

Device automatically sends GPS coordinates over GSM/SMS to Central Dispatch, Ambulance & Family.

3. In-Vehicle Hardware Block Diagram & Node Connectivity

Embedded ESP32 hardware specification for reliable accident detection, GPS tracking, and GSM fail-safe communication.

# Hardware Component Node Specification Functional Purpose & Operation
1 ESP32 Microcontroller ESP32 Dual-Core Main system controller with built-in Wi-Fi & Bluetooth for configuration, telemetry packet processing, and OTA firmware updates.
2 GPS Module NEO-6M / NEO-M8N Captures real-time latitude and longitude coordinates for exact accident location pinpointing.
3 GSM Telemetry Module SIM800L / SIM900A Sends SMS alerts and automated voice calls directly to centralized dispatch and emergency contacts—works without mobile internet.
4 Front Impact Sensor Front Bumper Sensor Detects frontal collision conditions to gate and arm the emergency countdown mechanism.
5 SAFE Physical Button Tactile Push Button Allows conscious occupants to cancel dispatch within the 5-second window if uninjured.
6 SOS Physical Button Tactile Push Button Allows conscious occupants to immediately bypass the 5-second timer and request urgent ambulance dispatch.
7 Backup Battery Unit 3.7V LiPo 1200mAh Keeps the emergency device fully operational even if severe impact cuts main vehicle electrical lines.

4. Layered Communication & Telemetry Failover Architecture

GSM-first multi-priority communication strategy ensures zero message loss even in rural areas or network-congested crash zones.

Priority 1
GSM SMS Data Packet

Transmits ultra-compact emergency data payload containing exact GPS latitude & longitude link.

Operates reliably without cellular internet.
Priority 2
GSM Voice Call Alert

Triggers automatic outbound voice calls to central control room dispatch and registered emergency contacts.

Voice channel priority routing.
Priority 3
ESP32 Wi-Fi / IP Payload

Streams rich diagnostic telemetry data (G-force, impact vector angle, AI injury risk, OTA firmware updates).

Rich dashboard streaming when data is active.