Tunnel Radio STRABAG Infrastructure & Safety Solutions
2 STRABAG Infrastructure & Safety Solutions Tunnel Radio We set standards STRABAG Infrastructure & Safety Solutions, or SISS for short, is a 100% subsidiary of STRABAG AG that offers communication and safety solutions for public institutions, public and private transport, industry and companies in a variety of sectors. Our range of services includes everything from highly available products and systems to the installation and operation of end-to-end solutions as general contractor. Within the STRABAG Group, SISS is responsible for electro-technical infrastructure and safety solutions worldwide. In its field, the company is among the leading in Europe. Everything from a single source As general contractor for transport and tunnel technology as well as communication and safety systems, SISS goes through every step of a project hand in hand with its clients from the needs analysis to planning and systems development all the way to installation, service and maintenance. SISS offers solutions for the control, optimisation and evaluation of the efficiency and quality of all communication and safety equipment. In every area of business, we place great importance on perfect implementation of the individual solution from analysis of the infrastructure to on-site development, construction and systems planning up to the definition of the software. Top quality, on-time delivery, effectiveness and teamwork these values have priority not only at SISS but also for the entire group. It is because of this that SISS counts among the leading European companies in the field of communication and safety technology. The proof is in our service portfolio ENGINEERING Requirements management System design and specification Software and hardware engineering Plant engineering and assembly Service and maintenance Updates and upgrades On-call service Radio measurement and propagation analysis System integration SERVICE PORTFOLIO Traffic & Tunnel Solutions Systems for the registration, control, influencing and management of private transport Environmental data and road ice warning systems Video-based traffic and incident surveillance Complete safety technology for road and rail tunnels incl. lighting and ventilation as well as emergency call systems Fire water supply systems and fire alarms, fire-fighting systems Critical Communication & Safety Systems VoIP communication systems TETRA dispatcher Digital radio gateways Process control systems, remote and SCADA systems Complete public safety answering point systems incl. installation Warning and alarm systems, infrastructure, terminals and alerting encoders Video surveillance, recording and passenger information systems for public transportation Digital train radio systems for GSM-R and TETRA infrastructures Public announcement systems Mobile data terminals for emergency vehicles Command vehicle equipment Rail & Radio Systems Voice and data radio systems Tunnel and building radio systems Large-area communication systems Fixed, mobile and portable end devices Highly available modules and components for analogue, digital, optical and high-frequency systems Construction Site Logistics Safety and communication systems for construction sites with emergency call systems, access control, control rooms and video/pa/radio Public Lighting Lighting systems for public areas incl. expansion to system lighting points with WiFi, video and e-mobility
Service Portfolio 3 Stable Communication Communication by radio is often the only way for rescue teams and road maintenance services to stay in contact with one another. A tunnel generally interrupts the communications flow. The tunnel radio systems from STRABAG Infrastructure & Safety Solutions enable safe and stable communication connection even in a tunnel. STRABAG Infrastructure & Safety Solutions has developed a tunnel radio system that offers the emergency services, such as the police, rescue and fire brigade, as well as road maintenance services, in particular, a way of ensuring communication in tunnels for all common radio systems. This not only contributes to greater traffic safety, but also provides a quick and often life-saving connection with the outside world. A continuous and fault-free radio connection in a tunnel can be the determining factor between life and death in the event of a catastrophe. It enables rescue teams to communicate with the external mission control centre without interruption. In addition, it enables road users to be precisely supplied with essential informationvia the FM public radio programs transmitted in the tunnel. This avoids illconsidered action and panic. Connection to existing networks The tunnel radio systems from STRABAG Infrastructure & Safety Solutions are connected to existing free-field radio networks of the emergency services and road maintenance services in such a way that the radio communication in the tunnel is the same as outside the tunnel, i.e. without restrictions. Thanks to the modular set-up of the tunnel radio solutions from STRABAG Infrastructure & Safety Solutions, different versions can be realised. Realisation in the head-end station by means of transposer converter, but also the alternative of frequency repeating technology isprovided. In the tunnel, the preparation is carried out in broadband, band selective or channel selective technology depending on the, in particular, used frequency spectrum as well as whether a single or two cable solution is projected. The systems must be calculated and planned in every case so that the required field strength values are ensured within the tunnel. EXAMPLE OF A HEAD-END STATION USING TRANSPOSER TECHNOLOGY EXAMPLE OF A HEAD-END STATION USING TRANSPOSER TECHNOLOGY Out In Fibre optic cables to the amplifier stations Fibre optic cables from the amplifier stations O E O E Monitoring of the radiating cables/fibre optic cable HF routing system LF control (LF routing system) In Channel-selective repeater Out LF control (LF routing system) Out In HF routing system Antennas In Out Transmitting Receiving Head end station Leadwires to the tunnel
4 STRABAG Infrastructure & Safety Solutions Tunnel Radio The System in Detail The head-end station, containing the transmitter and receiver, processes the radio signals to be fed in from the free-field and transmitted to the HF routing system. Connection between the head-end station and the amplifier stations is either by means of coaxial feed lines or via optical transmission lines. The distribution network between the head-end station and amplifier stations is generally set up in a star formation. Of course, according to respective requirements, the transport system can also be set up with built-in redundancy. The amplifier stations process the signals, amplify them and feed them to the tunnel antennas. So-called radiating cables are preferable for use as tunnel antennas. They are coaxial cables with openings in the outer conductors, through which the electromagnetic waves are coupled or uncoupled. The amplifiers are Class A amplifiers that balance the attenuation losses of the feeder cables and the radiating cables on the one hand, and amplify the signal so that the required level is achieved in the tunnel on the other. All radio channels can be transmitted in parallel without mutual interference. To meet the future requirements of tunnel radio systems, STRABAG Infrastructure & Safety Solutions has developed a new concept. This enables both the increased feed of new private broadcasting as well as the new digital trunked radio technology in tunnel radio systems. Naturally, this new concept also takes into account the increased requirements for fail-safe operation in the event of damage. The further developed systems are not only more economic and lower maintenance than previous ones, but now also support a wider range of radio services in the tunnel.
Service Portfolio 5 For greater fail-safe operation STRABAG Infrastructure & Safety Solutions places the highest possible focus on fail-safe operation in the planning of tunnel radio systems. Thus, STRABAG Infrastructure & Safety Solutions offers the possibility of interconnection of the leaky cable segments in the event of detected failures (short-circuit or idle state). A leakage cable switch is installed here between the respective segments and behaves as an impedance-correct termination during operation. TUNNEL WITH NICHE LWL n Amplifier station n 2 Amplifier station 1 LWL 1 2 Head-end station LKS LKS Transmission cable Receiver cable LKS LKS Legend LKS Leakage cable switch Feeder cable ½, 50/75 Ohm Radiating cable 7/8, 50/75 Ohm Fibre optic cable, monomode, E9/125 As soon as a fault is detected in the radiating cable, the leakage cable switch switches both sections together so that a radio supply is ensured to the damaged position. No additional control and voltage supply lines are required. But not only in the area of the tunnel antennas, but also in the area of the optical transmission systems, STRABAG Infrastructure & Safety Solutions has developed concepts for maximisation of the fail-safe operation.
6 STRABAG Infrastructure & Safety Solutions Tunnel Radio Secure communication in the tunnel A tunnel radio system must be available to 100 % as far as possible for the communication of the emergency services is guaranteed when required and for road users to be precisely supplied with information via the fed-in FM public radio channels. Monitoring For this reason, the functioning of the tunnel radio system is continuously monitored during operation. Besides the monitoring of the transmitter and receiver devices in the head-end station, the optical transmission units, the voltage supply components and amplifier units in the remote stations are also monitored. Not only are the components monitored, but the transport (fibre optic cable) and radiating cables are also included in the monitoring concept. With the CPM 3300 Cable Pilot Monitoring System developed by STRABAG Infrastructure & Safety Solutions, the radiating and transport cables are permanently monitored for short-circuit and interruption. All alarm messages can be transmitted to a superordinate control system via the network management system. Besides transmission by means of network management system, there is also the possibility of providing the alarm messages via potential-free contacts. Netzwork Management System The network management system from STRABAG Infrastructure & Safety Solutions was specially designed for use in radio systems of road or rail tunnels. The NMS system not only enables the complete remote control and monitoring of the tunnel radio system from a central point, but also expands the tunnel radio system in terms of intelligent fault management, remote access as well as central monitoring and data logging of all relevant system parameters. The integration in superordinate control systems can be carried out using a variety of possible protocols, e.g. Modbus TCP-IP, IEC60870-5-101, etc. The communication with the amplifier stations in the tunnel via NMS is carried out over the HF optical fibre system of the tunnel radio system, so that no additional control lines are necessary. The otherwise usually common transmission of fault messages by PLC can be omitted, which can lower the set-up costs. NMS is not only simply the transmission of fault messages, there is also the possibility of accessing all components of the system from a central point and to parametrise them if required. Any closing of the tunnel for fault analysis and application of the first measures can thus be prevented.
Service Portfolio 7 Service package Thanks to our many years of experience in the area of tunnel radio systems, we are able to fulfil the most diverse requirements of our customers. Together with our customer, we create the best possible solution, create analyses, define interfaces to existing systems, plan the resources and accompany the customer during the entire lifetime of the project. We are also available to our customers, even after the project has been completed, with service and information on innovations and improvements. Constant further development and our certification in accordance with EN ISO9001:2008, IRIS and the EU Directive 99/5/EC ensure highest quality and proven performance. Technological advantage Due to continuous and consistent further development of the overall area of analogue and digital radio technology, our hardware and software solutions are based on the highest technological level. The optical transmission systems (OTS), cable monitoring system (CPM), single channel repeater (GKV) and LF connections using voice over IP (LDI3300) are only some examples of our successful development activity in the tunnel radio sector. With the development of the network management system (NMS) as well as a solution for mutual broadcasting system via VoIP, we are successfully continuing along this path. EXAMPLE OF A HEADEND STATION WITH NMS Amplifier Fibre optic cables to the amplifier stations Fibre optic cables from the amplifier stations O E O E CAN Bus NMS head-end station & fibre optic cable monitoring NMS-Server Voice Matrix Break-in Connection to external management systems
3/2016 Berlin Cologne Leonberg Karlsfeld Thalgau Erstfeld Innsbruck VIENNA Budapest Graz Bologna STRABAG Infrastructure & Safety Solutions Ignaz-Koeck-Str. 19, 1210 Vienna Tel. +43 1 90199-0, Fax +43 1 90199-19 siss-tunnelfunk@strabag.com www.strabag-iss.com