All-Domain Emergency Intelligent Terminal and Converged Dispatch Solution

Overview

In extreme scenarios such as natural disasters and public emergencies, terrestrial communication networks are often severely damaged or congested, causing on-site information transmission to fail and command coordination to collapse. To solve this “information island” dilemma, a new generation of all‑domain emergency intelligent terminals and converged dispatch solutions has emerged. The solution uses lightweight equipment such as satellite call-out terminals and emergency intelligent terminals as front‑end sensing tentacles, deeply integrates heterogeneous communication links including broadband satellite, LTE ad‑hoc networks and PDT trunking, and provides emergency management authorities with command and dispatch capabilities featuring full territorial coverage, end‑to‑end link connectivity and closed‑loop processes through visualized dispatch and a GIS spatial analysis engine. This ensures that in critical moments the system can “call through, see the situation and dispatch effectively”.

Solution Architecture

The solution adopts a layered architecture of “satellite‑based backhaul, ground‑based forward extension and centre‑side aggregation”, forming a perception layer, network layer, platform layer and application layer from the bottom up.

The perception layer consists of satellite call‑out terminals, all‑domain emergency intelligent terminals, handheld smart terminals and other devices, responsible for key information collection and emergency call‑out at the disaster site. The terminals have built‑in high‑sensitivity satellite positioning and short‑message modules, supporting active position reporting and distress signal sending under extreme conditions without a public network, as well as receiving critical instructions from the rear command centre.

The network layer builds multi‑mode converged bearer channels, using high‑throughput satellite communication as the backbone backhaul link, combined with ad‑hoc networking, Mesh, UAV relays and other means to achieve on‑site broadband extension, while seamlessly accessing existing PDT trunking and LTE broadband private networks, ensuring interconnection between forward response personnel, on‑site command posts and the rear centre across heterogeneous networks.

The platform layer deploys a converged dispatch core engine, providing unified access management and status monitoring for all‑domain emergency intelligent terminals, and enabling aggregation and processing of multi‑dimensional information such as voice, video, data and positioning. The GIS dispatch module, based on a space‑time digital base, performs situation plotting, route planning and resource mapping, allowing emergency management authorities to complete situation awareness and analytical decision‑making on a single map.

The application layer serves business scenarios such as command and dispatch, on‑site consultation and remote collaboration, providing a visualized dispatch console, mobile command APP and multi‑level linkage interfaces. Through open APIs, it can quickly connect to existing business systems such as Emergency Information System (EIS) and video sharing platforms, protecting user investments.

Core Features

Satellite Call‑Out and Active Early Warning
When no public network is available, satellite call‑out terminals automatically switch to the satellite link, supporting one‑key SOS, periodic location reporting and two‑way short‑message call‑out between the front and rear. The rear centre can initiate forced call‑out and broadcast notifications to terminal groups; the terminal alerts personnel with vibration or a buzzer, and immediately uploads a summary of the on‑site situation, achieving zero‑delay transmission of life‑critical information. The entire call‑out process is accompanied by log auditing, providing a basis for post‑incident review.

Heterogeneous Network Adaptive Convergence
The converged dispatch platform has built‑in intelligent routing and link aggregation algorithms, dynamically switching the bearer channel for voice and video streams according to current link quality. When satellite bandwidth is limited, the system prioritises critical voice and location data while compressing video frame rates to maintain situational continuity. Seamless network‑side switching effectively avoids interruptions and stuttering in emergency calls, allowing frontline personnel to focus on rescue operations.

Visualized GIS‑Based Command and Dispatch
The GIS dispatch console overlays multiple layers such as UAV aerial imagery, satellite maps, real‑time terminal positions and rescue force deployment. Commanders can directly drag and select personnel or vehicles within a region on the map to initiate audio/video calls, short messages and task assignments. Electronic fencing and trajectory playback capabilities support security monitoring of forward response teams; an automatic alarm is triggered if they leave a safety zone, assisting dispatchers in timely intervention.

All‑Domain Resources on a Single Map
The solution uniformly abstracts resources such as satellite terminals, UAVs, communication vehicles and emergency broadcasting as intelligent connection objects, presenting them all on the map through standard interfaces. Dynamic information such as online status, remaining battery and link bandwidth is refreshed in real time. Dispatchers can quickly obtain details through attribute panels and perform remote operations such as parameter adjustment and firmware upgrades, transforming emergency resource management from “manual ledgers” to intelligent visualisation.

Typical Application Scenarios

Disaster Rescue Site Communication Restoration
When earthquakes, floods or other disasters destroy ground base stations, forward response teams carry all‑domain emergency intelligent terminals to rapidly penetrate the area, using satellite links to establish an immediate call‑out channel, while a tethered UAV carrying an ad‑hoc network base station quickly extends a broadband network covering several kilometres. The rear command centre instantly sees the on‑site situation through the GIS dispatch console, initiates multi‑party consultation and guides precise deployment of rescue forces. The satellite call‑out terminal also serves as a backup escape channel, ensuring personnel safety when the local network is interrupted again.

Air‑Ground Coordination in Forest Firefighting
In forest areas with severe terrain shielding, traditional narrowband walkie‑talkies provide insufficient coverage and cannot transmit images. By combining satellite call‑out terminals with an LTE private network, frontline firefighters can establish wide‑narrowband converged communication with command vehicles and helicopters outside the fire zone. The visualized dispatch console integrates thermal infrared images from helicopter aerial photography with fire‑fighting terminal positions. The commander can directly outline the optimal path for creating a firebreak on the image and synchronously push the plotting results to team members’ smart terminals, greatly improving coordination efficiency.

Joint Security Operations for Major Events
During large‑scale events such as sports competitions or expos, on‑site communication traffic surges and network attacks must be prevented. All‑domain emergency intelligent terminals are deployed as a dedicated command channel independent of the public network, and personnel in key positions carry satellite call‑out terminals in silent monitoring mode. Once a suspicious incident is detected, a terminal can be woken up with one key to directly reach the general command centre, and through the GIS dispatch console the incident location, surrounding video and police force distribution are synchronously presented, initiating a joint response process, with full‑process recording to preserve evidence.

Solution Value

Call Through – Satellite‑Terrestrial Mutual Backup, Ultra‑Fast Connection
Satellite call‑out and terrestrial private networks intelligently complement each other; wherever and whenever, critical information can always find a backhaul path. The design of active call‑out and forced response ensures that life‑critical calls are never missed.

See Clearly – Situational Visibility, Precise Decision‑Making
From satellite imagery to terminal positions, from UAV video to historical tracks, multi‑dimensional information is integrated on the map. Commanders no longer rely on “imagination” or fragmented reports, but make scientific decisions based on real‑time dynamic situation maps.

Dispatch Effectively – Heterogeneous Interoperability, Efficient Coordination
Voice, video and data of terminals across different standards are fully interconnected. Personnel from different departments and networks can join the same communication group, with instructions sent by one click and feedback delivered in real time, breaking down communication barriers and truly realizing converged dispatch of emergency forces.

Maintain Resilience – Peacetime‑Wartime Integration, System Survivability
In peacetime, the system serves as a communication means for patrols, inspections and training exercises; in wartime, it transforms into the backbone of emergency command. Modular design and open interfaces support continuous upgrading and expansion, growing with business needs, protecting long‑term investment while constantly improving the system’s anti‑destruction resilience.