A Clear View from Afar – A New Generation of Flight Operations

HungaroControl
Aircraft taking off

When the idea of the “Remote Tower” first emerged around 25 years ago, it was still considered an unconventional concept: allowing aircraft to take off and land without air traffic controllers having a direct view of the airport, while managing operations from a control room located hundreds of kilometers away. Making this possible safely requires sophisticated technology – and, above all, extensive expertise on the part of the air traffic controllers working in the Remote Tower.

Today, remote tower operations are an established approach among air navigation service providers worldwide. A growing number of airports, particularly smaller ones, are adopting the concept. For these airports in particular, it offers a smarter and more cost-effective way to manage air traffic while making more efficient use of controller resources.

HungaroControl in Budapest is one of the organizations to have embraced remote tower operations. With around 100,000 aircraft movements per year, Budapest Airport was one of the first airports in Europe to be controlled remotely. Air traffic controllers are supported by state-of-the-art camera systems that provide real-time video and a 360-degree view of the airport apron.

The Challenge

For Air Traffic Controllers, a direct view from the tower had traditionally been essential for monitoring the airport apron. Managing ground movements, landings and departures without a direct view of the airport and its runways therefore presented a significant challenge.

The airport’s 30-year-old control tower infrastructure posed an additional challenge. Its ATM systems had already been upgraded several times, leaving little scope for further modernization. At the same time, full control of airport operations had to be maintained even if the tower was temporarily taken out of service.

The Solution

The Budapest project delivered a high-performance solution that enables aircraft to be guided safely and reliably through approach, landing and departure while taking advantage of satellite-based arrival and departure procedures. All of this is managed from a separate control room – the Remote Tower. The new facility introduced modern, more efficient workstations designed to improve workflows while meeting stringent requirements for redundancy, safety, productivity and ease of maintenance. At the heart of the setup is a 32-monitor video wall that brings together the feeds from thermal cameras installed throughout the airport, providing round-the-clock visual monitoring of airport operations. For the sophisticated KVM infrastructure, HungaroControl selected systems from G&D.

Hungary’s Remote Tower concept is based on the bidirectional integration of the existing Advanced Surface Movement Guidance and Control System (A-SMGCS) with a camera network installed at multiple locations across the airport. State-of-the-art thermal cameras transmit video feeds around the clock to four video wall servers. The ControlCenter-Digital KVM matrix routes these feeds to the video wall in the control room. This provides continuous visual coverage of the airport apron and runways. The 32-screen video wall gives ATCOs comprehensive visual information and a clear overview of the entire airport. A mirrored, redundant video wall server system can be brought online at the touch of a button via the KVM matrix. This ensures uninterrupted monitoring of the airport apron even in the event of a system failure.

An Experienced Implementation Partner

To meet the requirements for safety, redundancy, productivity and ease of maintenance, Hungarian systems integrator StudioTech developed a KVM concept featuring fully redundant operator computers located outside the control room.

Technical Highlights

  • 32 monitors for the central video wall

  • Four video wall servers for thermal camera feeds

  • ControlCenter-Digital KVM matrix for routing video and computer signals

  • Five Controller Working Positions with access to multiple computers

  • Computer systems located remotely in an air-conditioned, access-controlled server room

  • DVI-CON user modules providing real-time access to remote computers

  • Fully redundant architecture with two mirrored matrix systems

  • Automatic failover to the second KVM matrix in the event of a system failure

  • 120 computer modules and 60 user modules

  • SNMP monitoring for proactive system health management

120
Computer Modules
2
Matrix Systems
60
Workstation Modules

The Result

The new setup enabled HungaroControl to significantly improve system resilience and availability. At the same time, noise and heat emissions were substantially reduced, while creating efficient, ergonomic and user-friendly workflows.

The solution also made day-to-day work considerably easier for the IT team. Technicians can now maintain and configure the computers in a separate area without disrupting the work of the ATCOs.

The fully redundant system architecture provides maximum resilience. From approach and departure to ground operations, G&D’s KVM technology supports air traffic controllers seamlessly in the background.

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