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TETRA takes off(4)

時間:2013-03-06 20:45來源:www.by236.com 作者:admin 點擊:
A number of reports describing airport TETRA systems can be downloaded from the Case Studies page of the TETRA Associations website, www.tetramou.com Web links www.air-radio.com, www.analysysmason.co

 A number of reports describing airport TETRA systems can be downloaded from the Case Studies page of the TETRA Association’s website, www.tetramou.com 

Web links

www.air-radio.com, www.analysysmason.com, www.artevea.com, www.euro-cdm.org, sepura.com">www.sepura.com, sita.aero">www.sita.aero, www.telvent.com, www.tetratab.com, www.zonith.com

Optimizing movements of staff and ground resources

More than 90 international airlines operate from Madrid-Barajas Airport, the largest in Spain and a major European hub. In 2009, the airport processed more than 48 million passengers. 

Helping to manage its vehicle operations on the ground is a fleet management system developed by Telvent, which employs the airport’s TETRA network for secure exchange of data. Vehicles are equipped with an on-board unit and touch-screen PC connected to a TETRA terminal, which gives the vehicle operator GPS location/navigation capabilities and access to corporate applications.

Seven modules make up the TelMMA platform:

  • TelMMA Map: the on-board unit displays the vehicle’s position on a geo-referenced map with the real-time location of other vehicles in the same fleet and/or other fleets, as permitted by the user profile. A navigation function helps optimize the vehicle’s route to the desired destination.
  • TelMMA Incident: drivers can register incidents and events with the system and track relevant information.
  • TelMMA Report: this provides tailor-made reports and summaries. All information stored in the database can be cross-referenced.
  • TelMMA Work: this exchanges work orders and work requests between the control room and on-board units.
  • TelMMA Comm: this enables the control room to establish TETRA communication with the mobile units.
  • TelMMA App: this allows two-way access to the airport operator’s information systems. Drivers can view weather or flight information and report incidents.
  • TelMMA Admin: this module is used to manage users’ profiles, permissions and general settings.

Using this system, Telvent explains, operators can optimize the management of many airport processes, improving the quality of services they provide to airport customers.  The system also reduces operational costs – particularly fuel costs – and supports the co-ordination of emergency operations staff.

Because of the interoperability of TETRA systems, it can be implemented at any airport equipped with a TETRA network, regardless of the infrastructure brand or manufacturer. The solution is adaptable and modular, allowing integration with other applications.

Reliability, security, functionality

As part of a modernization programme at Cochin International Airport, in the State of Kerala, India, a new TETRA network is being installed. It will replace an analogue radio installation.

The Indian branch of Siemens Information Systems has been the turnkey contractor and integrator for the supply, installation and commissioning of the network. All TETRA components are being supplied by VSpectra Communication,  of New Delhi. They include infrastructure from Rohde & Schwarz and radio terminals from Sepura. Operating frequencies for the system are in the 380–430?MHz band.

“Airports are fast moving, very busy environments that provide one of the toughest tests for communications systems”, commented Subir Kochhar, of VSpectra. “TETRA has proven to be an excellent solution, delivering the reliability, security and functionality required in airports.

“In addition, thanks to its four time-slots in the 25 kHz channel spacing, TETRA provides larger network capacity than analogue technology.”

One particular advantage of the TETRA technology is its clearer audio, which is expected to be especially helpful during the heavy rains of the monsoon season. Kochhar continued: “The lightweight and compact Sepura terminals offer better voice quality than the old analogue terminals that they’ve replaced – so it was easy to convince Cochin’s airport authorities to adopt Sepura TETRA radios”.

Also used at Cochin will be Sepura’s powerful SRG gateways.
With their 10 watts of transmitter power, these will provide extended TETRA coverage. When operating in gateway mode, the SRG acts as a relay point for other hand-held and vehicle radios, stretching the trunked network into any black spots or to more distant users on the fringes of coverage.

Checking in at Düsseldorf

After Frankfurt and Munich, Düsseldorf has the third largest airport in Germany. In 2009, Düsseldorf International Airport transported 17·8 million passengers and managed an average of 600 aircraft movements a day. 

Located about nine kilometres from the city, the airport hosts 70 airlines and offers flights to 180 non-stop destinations on all continents. It is the main hub for Air Berlin and has also become a new hub for Lufthansa, which operates about 300 flights a day to and from Düsseldorf. In addition, Lufthansa has selected Düsseldorf as the diversion airport for its giant Airbus A380 aircraft in case of bad weather at Frankfurt. 
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