City Security Wireless Communication Solution

I. Industry Background

The Civil Air Defense Emergency Command Center is a core component of urban public safety systems, serving dual functions of wartime air defense and peacetime disaster emergency response. Its construction level directly reflects a city's informatization capabilities and emergency management proficiency.

1.1 Core Significance

  • Integration of Air Defense and Disaster Prevention: Ensures coordinated operations between wartime air defense and peacetime disaster prevention.
  • Enhanced Command Efficiency: Guarantees high-performance operation of emergency command systems, enabling rapid decision-making.
  • Strategic Wartime Value: Strengthens organizational command capabilities in high-tech localized conflicts, contributing to urban air defense victory.

1.2 Construction Goals

  • Build an interconnected, unified-scheduling civil air defense integrated information transmission platform.
  • Advance the development of provincial and municipal-level comprehensive voice command and dispatch systems.
  • Implement the Guidelines on Promoting the Scientific Development of Civil Air Defense Information Systems issued by the National Civil Air Defense Office.

II. Solution Design

2.1 System Architecture

The civil air defense emergency command and dispatch system provides a unified platform for multi-scenario emergency communication, featuring:

  • Functional Integration: Supports multi-service fusion transmission of voice, video, and data.
  • Rapid Response: Flexible deployment and cost-effectiveness, suitable for daily operations and urgent missions.
  • Seamless Transition: Smooth switching between routine operations and emergency scenarios.

2.2 Technical Solution: CroSkylink MESH Ad-hoc Network Communication System

Core Technologies:

  • Non-Line-of-Sight (NLOS) Transmission: Overcomes terrain obstacles without relying on public power or network infrastructure.
  • Intelligent Networking: Decentralized architecture with automatic node joining/leaving and real-time status feedback to management systems.
  • Multi-Service Expansion: Supports IoT sensor integration, remote robot control, and advanced applications.

Technical Advantages:

  • Software-Defined Radio (SDR) Architecture: Utilizes COFDM technology to achieve 70Mbps high throughput.
  • Multi-Hop Ad-hoc Networking: Automatic node relay extends coverage range (single hop up to 10 km).
  • Full IP Protocol: End-to-end TCP/IP compatibility with public networks and dedicated command systems.

2.3 Application Scenarios

  • Civil air defense emergency command and dispatch.
  • Rapid deployment of field communication networks for individual soldiers.
  • Emergency communication support for public security, firefighting, military drills, and inter-ship operations.

III. Application Cases

3.1 Handling of Mass Incidents

  • Challenge: Complex on-site dynamics requiring real-time monitoring and multi-department coordination.
  • Solution:Deploy data collection vehicles and portable devices to transmit multi-channel audio/video to command vehicles via MESH networks.Synchronize data with upper-level command centers via satellite links for remote decision-making.
  • Outcome: Commanders gain holistic situational awareness to formulate rapid response plans.

3.2 High-Risk Environment Operations

  • Challenge: Post-disaster sites with biochemical hazards requiring expert remote guidance.
  • Solution:Equip frontline personnel with protective gear and portable devices to establish real-time audio/video links via MESH networks.Enable remote experts to analyze scenarios and issue instructions.
  • Outcome: Reduced personnel risk and improved operational precision.

3.3 Emergency Communication for Major Natural Disasters

  • Challenge: Collapsed public communication networks hindering rescue coordination.
  • Solution:Rapidly deploy MESH base stations to build a 10 km-radius emergency communication network.Connect command nodes via relay devices for cross-regional unified dispatch.
  • Outcome: Ensures efficient rescue command delivery and social stability maintenance.

3.4 Real-Time Broadcasting in Complex Environments

  • Challenge: Satellite communication limitations in obstructed or mobile scenarios.
  • Solution:Utilize MESH networks for multi-channel HD video transmission, adaptable to indoor, mobile, and multi-angle filming.Overcome traditional satellite constraints to ensure stable live broadcast signals.
  • Outcome: Enhanced news reporting timeliness and environmental adaptability.

IV. System Features

  • High-Bandwidth Transmission：COFDM technology enables 70Mbps throughput, supporting simultaneous HD video streams.
  • Intelligent Ad-hoc Networking：Decentralized architecture with self-healing and self-balancing for NLOS environments.
  • Multi-Service Integration：Combines voice intercom, video surveillance, WiFi access, and IoT terminal compatibility.
  • Full IP Architecture：End-to-end TCP/IP protocol ensures seamless integration with public/private networks.
  • Flexible Deployment：Compact, lightweight design with customizable R&D for multi-scenario adaptation.