Global Emergency Intelligent Link Terminal (Satellite Call Terminal)

1. Product Overview

The Global Emergency Intelligent Link Terminal (Satellite Call Terminal) is an integrated emergency intelligent terminal launched by Beijing Raytrans Digital Technology Co., Ltd. for emergency command and dispatch communications. The product integrates satellite communication, voice dispatch, video backhaul, GIS positioning and broadcast intercom capabilities, enabling a closed-loop emergency safeguard of "call, locate, report and dispatch" through satellite links even under public network interruption or in communication blind areas. It is the core terminal equipment for building a full-coverage, converged and interconnected emergency command and dispatch system.

The terminal supports converged access and automatic switching among satellite networks and terrestrial public/private networks. Working together with the converged dispatch platform and the visual GIS dispatch console, it meets the communication safeguard requirements of emergency command dispatch, disaster prevention and reduction, forest fire prevention, mine rescue, power inspection, border patrol and other scenarios.

2. Product Features

• Satellite Call: One-key call with satellite voice, short message and position reporting; uninterrupted communication even in blind areas;
• Global Convergence: Multi-network convergence of satellite, public and private networks with automatic optimal switching for seamless full-coverage;
• Emergency Intelligent: IP67 triple-protection design, wide-temperature operation, built-in high-capacity lithium battery, portable and reliable;
• Converged Dispatch: Deep integration with the converged communication platform, supporting emergency call, barge-in, forced release, monitor, call pickup, broadcast/intercom and other dispatch services;
• Visual Dispatch: GPS/BeiDou dual-mode positioning with real-time terminal locations on GIS maps, supporting circle-select calling and track playback;
• Multi-service Access: Built-in Ethernet and RS232/RS485 data interfaces, supporting concurrent transmission of voice, data and video services;
• Secure & Reliable: Supports encrypted communication and dual-machine hot standby to meet private network security requirements.

3. Core Functions

• Satellite Communication: Provides voice, short message and position reporting services over Tiantong/BeiDou satellite networks, ensuring emergency communication when public networks are down;
• Emergency Call: One-key call request with real-time response from the dispatch console, supporting group call, broadcast call and emergency calling;
• Voice Dispatch: Supports point-to-point call, group call, broadcast, intercom, conference call and other dispatch services for unified command with the dispatch console;
• Video Backhaul: Supports external cameras and deployable surveillance units to stream on-site video back to the command center in real time;
• Visual GIS Dispatch: Real-time terminal location mapping with map circle-select, area calling and track playback, achieving "see everything, dispatch everything";
• Recording & Traceability: Full dispatch recording retention for post-event review and performance assessment;
• Multi-network Convergence: Intelligent switching among satellite, 4G/5G public and wireless private networks with automatic link failover.

4. Technical Specifications

Item	Specification
Satellite Communication	Supports Tiantong/BeiDou satellite voice, SMS and position reporting; emergency communication in signal blind areas
Network Modes	Convergence of satellite / 4G-5G public / private networks with automatic switching
Positioning	GPS/BeiDou dual-mode positioning with real-time GIS location reporting
Dispatch & Intercom	Supports voice intercom, broadcast paging, emergency call, monitor and recording
Interfaces	RJ-45 Ethernet, RS232/RS485 data, audio input/output, antenna interface
Power Supply	DC12V adapter / built-in high-capacity lithium battery
Protection Rating	IP67 dustproof and waterproof, suitable for harsh outdoor environments
Operating Temperature	-40℃ to +70℃
Power Consumption	≤15W

5. System Networking and Converged Dispatch

The Global Emergency Intelligent Link Terminal accesses the converged dispatch platform via satellite links or terrestrial networks, forming an integrated emergency command and dispatch network together with the command and dispatch system, converged communication gateway and visual GIS dispatch console:

• Terminal Layer: Global Emergency Intelligent Link Terminals, Satellite Call Terminals, emergency intelligent terminals and other front-end devices;
• Transport Layer: Multi-network converged transmission over satellite links, 4G/5G public networks, wireless private networks and optical fiber private networks;
• Platform Layer: Converged dispatch platform (softswitch/IPPBX) and converged communication gateway for unified dispatch of voice, data and video services;
• Command Layer: Visual GIS dispatch console and dispatch console terminals for map-based dispatch, voice command and situation presentation.

The platform supports dual-machine hot standby deployment to ensure 7×24 uninterrupted dispatch services; encrypted communication between terminals and the platform guarantees private network communication security.

6. Application Scenarios

• Emergency Command: On-site command, disaster reporting and situation assessment for government emergency management departments;
• Disaster Prevention: Emergency communication safeguard at earthquake, flood and typhoon disaster sites;
• Forest Fire Prevention: Ranger positioning, fire reporting and suppression command dispatch;
• Mine Rescue: Underground/surface emergency communication and rescue command dispatch;
• Power Inspection: Communication safeguard for remote line inspection and repair sites;
• Oil & Gas Fields: On-site voice dispatch and safety supervision;
• Border Patrol: Border patrol positioning, emergency calling and coordinated dispatch;
• Hydrological Monitoring: Data backhaul and emergency contact for remote monitoring stations.