All-Domain Emergency Communication Converged Dispatch Solution

Overview

In severe natural disasters, public emergencies and field areas without public network coverage, traditional communication networks are prone to paralyze, causing audio/video interruption between the command center and frontline rescuers, information silos and delayed decision-making. The All-Domain Emergency Communication Converged Dispatch Solution is built around the concept of "all‑means access, all‑scenario connectivity, and whole‑process visualization". Its core relies on intelligent hardware such as satellite call‑out terminals and all‑domain emergency smart terminals, combined with a converged dispatch platform and a visualized GIS dispatch engine. By completely bridging the barriers between satellite communication networks, public mobile networks, broadband private networks, narrowband trunking networks and IoT sensing networks, the solution provides emergency command with audio/video conferencing, location plotting on maps, command issuance and situation sharing anytime, anywhere, regardless of region or network constraints.

The solution condenses originally scattered heterogeneous communication systems into a unified dispatch interface. From any location, the commander can grasp the real‑time positions of personnel, equipment and disaster sites on a single map, and call various terminals with one click. It not only supports independent networking and calling of satellite terminals, but also enables mutual collaboration with frontline all‑domain smart terminals, truly achieving “audible, visible and dispatchable”.

Core Architecture and Features

Space‑Air‑Ground Integrated All‑Domain Access

The solution creates a multi‑layer redundant access layer of “high‑orbit satellite + low‑orbit satellite + terrestrial base station + portable ad‑hoc network”. The satellite call‑out terminal adopts an integrated portable design and supports mainstream satellite communication systems such as Tiantong, BeiDou, Ka/Ku. It automatically switches to the satellite link when the public network is disconnected, guaranteeing voice, SMS and low‑speed data transmission. The all‑domain emergency smart terminal integrates public 4G/5G, private LTE, Mesh ad‑hoc network and Wi‑Fi 6, enabling rapid construction of an on‑site broadband emergency network. It also serves as a convergent gateway for narrowband intercom and sensor data, achieving full connectivity of people, vehicles and objects in isolated areas.

Converged Dispatch & Cross‑System Interconnection

Based on an all‑IP converged dispatch core with SIP+IMS, satellite phones, smart terminals, analog/digital intercoms, IP phones, video conference terminals, drone video feeds and other devices are all incorporated into a single dispatch platform. Whether a satellite terminal initiates a one‑key SOS call‑out, or field personnel report a situation via a smart terminal, the platform can automatically identify, apply policy‑based routing, and realize cross‑system mixed grouping, seamless barge‑in and forced release, breaking the deadlock of “connected but not linked”.

Visual GIS Dispatch & Situation Plotting

Relying on a domestic GIS engine, the solution builds a multi‑dimensional digital base map comprising satellite layers, underground pipeline networks, building BIM models and drone aerial images. GPS/BeiDou positioning information received from satellite terminals and real‑time locations reported by smart terminals are automatically plotted on the map and associated with personnel identities. The commander can directly select or circle areas on the map to create temporary task groups, send text instructions or initiate audio/video calls. Meanwhile, disaster range derivation, rescue route planning, geofence alarms and historical trajectory playback are all supported, transforming passive reporting into proactive defense.

Intelligent Call‑Out & Linkage Trigger

The satellite call‑out terminal embeds intelligent edge algorithms and supports sentinel mode, silent monitoring and automatic position reporting. When the terminal detects abnormal sound, violent vibration or deviation from a preset safety zone, it can automatically trigger an alarm and link with the converged dispatch platform to initiate an emergency conference. The platform then broadcasts evacuation instructions to surrounding devices through the all‑domain smart terminal, and links with the public address system and warning large screens, forming a second‑level closed loop of “perception – decision – action”.

Typical Application Scenarios

Earthquake/Flood Disaster Rescue: When public networks are down at the disaster site, the advance rescue team quickly arrives with satellite call‑out terminals and all‑domain emergency smart terminals. The satellite terminal guarantees basic voice and short‑message channels to the rear command headquarters, while the smart terminal uses Mesh ad‑hoc networking to rapidly cover a temporary network within a 5 km radius, connecting on‑site drones, individual soldier video transmission and sensors, and sending real‑time images and environmental data of the affected area. The command center fuses multiple video streams via the GIS platform, precisely mobilizing surrounding rescue forces.

Forest/Grassland Firefighting: Fire sites are remote and lack public network coverage. Each firefighting squad is equipped with a satellite call‑out terminal and a backpack‑style smart terminal. The satellite link ensures that team members will not lose contact, and the infrastructure‑less ad‑hoc network inside the smart terminal supports high‑speed mobile roaming, fulfilling location tracking and trunking intercom during firefighting. The converged dispatch platform integrates meteorological data and fire‑front derivation models, dynamically adjusts combat groups on the situation map, and pushes retreat routes and safety zone annotations to frontline terminals.

Large‑Scale Event & Key Site Security: During major events or summits, the command center needs to simultaneously dispatch multiple resources such as fixed surveillance, mobile patrols and drones. The all‑domain smart terminal can serve as a converged communication gateway, uniformly aggregating public network, private network and wireless video transmission resources at the event site. The visual GIS dispatch interface clearly displays the distribution of security forces. In