Subways are among the most densely populated areas with numerous staff members, creating a high demand for reliable radio communication. The subway environment presents unique challenges, requiring specialized two-way radio features to enhance operational efficiency. The Runbo 4G Intelligent Radio Terminal is specifically designed to address subway communication needs with comprehensive solutions.

Key Features of Subway Radios:

1. Wireless Communication

   • Provides voice calls, SMS, and group data communication between fixed and mobile staff.

   • Supports group calls and selective calling.

2. Multi-Role Connectivity

   • Enables communication between central dispatchers, station operators, depot/parking lot staff, train drivers, and mobile personnel.

3. Priority Call Queuing

   • High-priority calls can interrupt low-priority conversations when channels are congested, ensuring smooth dispatch operations and emergency response.

4. Emergency Call Function

   • Emergency calls override all other communications.

5. Train Broadcast Integration

   • Dispatchers can broadcast selectively or universally to train passengers.

6. Call Monitoring & Recording

   • Dispatchers can monitor conversations and enable automatic/manual recording.

7. Call Logging

   • Stores call details (caller/receiver ID, location, type, date/time) for reporting.

8. Self-Diagnosis & Centralized Testing

   • System self-checks and remote diagnostics.

9. Coverage Optimization

   • Above-ground areas use base stations & spatial wave antennas.

   • Underground tunnels/stations use leaky coaxial cables (or tunnel antennas).

10. System Architecture

    • Includes core network equipment (control center), base stations (stations), train radios, portable radios, and transmission channels.

11. Signal Reliability

    • Ensures 90% coverage probability for spatial wave areas and 95% for leaky cable zones (with Grade 3 voice quality).

With the rapid advancement of urban rail transit technology, high-performance IP-based broadcast intercom systems are essential for operation management, passenger service, and information dissemination.

System Setup:

• Station Control Room: Management console

• Leadership Office: Paging console

• Broadcast Center: Software-based intercom host

• Station Hall/Platform/Square: Terminals, emergency boxes, speakers, amplifiers

• Fire Control Center: Fire broadcast matrix

Core Functions:

1. Emergency Assistance

   • Passengers can request help via terminals or emergency points, connecting directly to station staff.

2. Video Intercom

   • Full-duplex video calls between passengers (station/platform/square) and control room.

3. Busy Call Transfer

   • Multiple operator positions ensure no missed calls.

4. Real-Time Monitoring

   • Control room can watch/listen to all terminals and emergency points.

5. Recording & Archiving

   • Stores audio/video logs for playback, storage, and server upload.

6. Scheduled Broadcasts

   • 24/7 automated announcements (music, notices, safety tips).

7. Zoned Broadcasting

   • Custom audio per zone with independent volume control.

8. All-Call Broadcasts

   • Critical announcements or music across all areas.

9. Live Announcements

   • Immediate alerts for emergencies (e.g., ticket hall, platform).

10. Leadership Paging

    • Priority broadcasts from offices.

11. Fire Alarm Integration

    • Auto-triggers emergency broadcasts during fires.