security
Teltronic’s local partner, Withus, to develop new voice and data applications during the preparations for the G-20 summit. Using a special applications interface (called N2A in Teltronic Nebula networks), database access via SDS is now possible, enabling offi cers to query the criminal database as well as gain access to driver ID and vehicle licence-plate records. IMPA also developed line dispatch and recorder solutions customized to its own needs. T ese developments are in sharp contrast to the limited services previously available over the EDACS system, which was limited to voice alone. IMPA has also upgraded its network with a command
and control centre reached via a single emergency telephone number, 112, using Teltronic’s ethernet/IP-based CeCoCo technology. T is technology has also allowed IMPA to develop an interconnection solution with the neighbouring TETRA network operated by Seoul Metropolitan Police Authority (SMPA) and supplied by Motorola. T e connection proved particularly useful during the G-20 summit and is seen as an example of how regional police networks could be interconnected in the future to make up a nationwide solution. Also implemented by IMPA is an in-vehicle map navigation
service based on 3G mobile. Queries to it are transmitted over the TETRA network.
Pushing data “At IMPA we are very pleased with the TETRA system and plan to use it to develop further third-party applications”, commented Mr Hang Sun Kwang, IMPA’s director of communications. “We hope to implement WAP soon so that we can see images on the terminal. “We will also increase network capacity when we
implement secondary control channels and be able to push more data from the server. At the moment, photos can be sent to the vehicle via a 3G network, but of course this costs money as the service is provided by a commercial operator. It would be nice in future to be able to run these applications over TETRA, so the development of secure broadband solutions which are compatible with TETRA and able to be run over the police network would be well received in the future.”
National TETRA strategy
F
or several years, the Korean government
has been pursuing a goal of upgrading its public safety networks to TETRA. The latest count suggests that as many as seven metropolitan TETRA systems and one province-wide network are now in operation.
Most provinces still rely on older VHF systems, but plans are being put in place to extend TETRA coverage to the remainder of the country, with competitive tenders for each province. Interconnection would be required between these systems, initially for voice communications but with data to be added later. The Government is preparing a law which will require interconnection between provinces.
On duty: an Incheon offi cer makes a radio call with his TETRA handportable radio. Inset is a wireless data terminal installed in an IMPA police vehicle
Making connections: Withus, IMPA’s TETRA partner E
stablished in 1996, Withus has manufactured CDMA and WCDMA repeaters which it has exported to China, Taiwan and Japan as well as developing a WiBro repeater which it has exported to Japan. The company has also been involved in developing technology solutions for the Korean Helicopter Programme. Withus became involved in TETRA development in South Korea following the TETRA tender request which IMPA issued in 2004. After Teltronic was selected as the winning bidder, Withus became its trusted partner for the South Korean market.
Besides developing a number of special TETRA applications, Withus
has provided IMPA with a full maintenance service since 2008. During 2010 Withus played an active role in upgrading the TETRA network to ensure that IMPA was fully prepared to receive the G-20 visitors. Since winning the IMPA contract, Withus has also completed the Formula 1 circuit project in Yeongam province, where the fi rst South Korean F1 Grand Prix took place in October. The company has also delivered TETRA terminals as far afi eld as to police in Botswana.
Issue 2 February - April 2011 TE TRA TODAY
The author with Park-Heung Kuk, TETRA business team director for system integrator Withus, and a colleague
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