🚨 Public Safety & Emergency · C4 Architecture · Pro
Emergency 112 Dispatch System
An integrated emergency response system like India's 112: calls, SMS and panic-app alerts reach one centre, which dispatches the nearest police, fire or ambulance unit.
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Drawing diagram…
What this diagram shows
- One number for police, fire and ambulance
- Caller location comes from the network and the phone
- Nearest available vehicle is picked on a live map
Prompt used
Emergency response system: citizens reach the centre by 112 call, SMS or a panic button app. A telephony platform routes calls to call-takers, and a location service gets the caller's position from the mobile network and phone GPS. Call-takers create incidents in the computer-aided dispatch (CAD) system. Dispatchers see vehicles on a GIS map via GPS trackers and assign the nearest police, fire or ambulance unit, which receives the job on a mobile data terminal.
Mermaid code
C4Container
title Emergency 112 Response
Person(cit, "Citizen", "Calls, texts or presses panic button")
Person(ct, "Call-taker / Dispatcher", "Handles incidents")
System_Boundary(ers, "Emergency Response Centre") {
Container(tel, "Telephony Platform", "IP PBX", "Call and SMS routing")
Container(loc, "Location Service", "Java", "Network and GPS location")
Container(cad, "Dispatch System (CAD)", "Java", "Incidents and assignments")
Container(gis, "GIS Map", "Web GIS", "Incidents and vehicles on map")
Container(mdt, "Vehicle Terminal App", "Android", "Jobs for field units")
ContainerDb(db, "Incident DB", "PostgreSQL", "Incidents and history")
}
System_Ext(net, "Mobile Networks", "Caller location")
System_Ext(avl, "Vehicle GPS Trackers", "Live positions")
Rel(cit, tel, "112 call, SMS, panic app")
Rel(tel, ct, "Routes to free call-taker")
Rel(ct, cad, "Creates and dispatches")
Rel(cad, loc, "Gets caller location")
Rel(loc, net, "Queries")
Rel(cad, gis, "Shows on map")
Rel(avl, gis, "Positions")
Rel(cad, mdt, "Sends job")
Rel(cad, db, "Reads/writes")Related templates
Emergency Call to Dispatch Sequence
What happens in the minutes after someone dials 112: call answered, location fixed, incident created, nearest unit dispatched and the caller updated.
Emergency Incident Lifecycle
The states of an emergency incident in a dispatch system, from first call to closure, including duplicate calls about the same event.
Disaster Early Warning Alerts
How warnings for cyclones, floods and earthquakes reach people: sensor and forecast data, a decision by the authority, and cell broadcast, SMS and sirens to the affected area.
Online Police Complaint Workflow
How an online police complaint is handled: registration, assignment to the right police station, investigation and updates to the complainant.
Fire and Rescue Communication Network
How fire stations, the control room and fire engines stay connected, with radio as the main link and mobile data as a backup.
City CCTV Command Centre
Where a city surveillance system runs: cameras at junctions, local recorders, a central video management system and analytics that raise alerts in the command centre.