The Gotthard Base Tunnel was put into operation on December 11 and Laurent Moureu, general manager of ALE Switzerland Ltd., noted that the Gotthard Base Tunnel is not only a major engineering feat, but also the first in the world to employ advanced IoT technology for delivery One of the major projects of basic services. The project uses IoT devices to manage passenger and vehicle safety around the clock in the world's most challenging operating environment.
The Gotthard Base Tunnel can transport about 9,000 passengers per day at 250 kilometers per hour through the Alps and over 260 freight trains a day, far exceeding the length and weight of previous trains.
If you include areas such as access tunnels and horizontal lanes, the total length of the area that you actually need to connect and secure is approximately 152 kilometers. This area must have very reliable IP network connection throughput. Even the smallest network disruption due to inefficient data transfer efficiency or bottlenecks can cause delays and can even affect the safety of workers and passengers.
Most of the capabilities of this technology are automated. This means that a very stable and reliable data network is required to transmit the necessary operational data to the tunnel. The IoT environment relies on real-time communications between IP devices by capturing the latest operational data and providing tunnel managers with the information they need to ensure that all systems in the tunnel operate smoothly and safely.
Management of the opening and closing of the door
Taking the management gate as an example, if any of the doors to the service area or access tunnel remain open, the pressure caused by the high-speed passenger train is sufficient to cause considerable physical damage to the system in the tunnel. IOT connected tunnels monitor all doors 24 hours a day and automatically send alarms to the control room if the door is not closed when it needs to be closed.
If you take into account all the sensors, surveillance cameras, ventilation and drainage infrastructure, communications, control and monitoring systems throughout the site, all of which are constantly sending or receiving real-time data, you will know that reliable connections are So important.
Connect each endpoint together
The data network (or many data networks, since two parallel tunnels have separate networks) connect all the IP endpoints in the Internet of Things and send the data to the tunnel control center's administrator. These networks must have self-healing capabilities that can operate at all temperatures and environments. This means that you need to have a data switch that goes beyond conventional switches to provide uninterrupted traffic and zero communication errors in some of the most demanding work environments.
In the Swiss mountains is not fun
Given the complexity of the tunnels and the remoteness of some service areas, many network components must work overtime in tunnels, such as away from data centers with good temperature and humidity control and security. But it's not just location-specific; the temperature in some parts of the tunnel can reach as high as 40 ° C and the humidity levels up to 70%, far beyond the normal work envelope for data exchanges.
Metal dust - small particles, big problem
Second, there is dust in the tunnel. Even in normal business environments dust and airborne particles can eventually cause problems, but in railway tunnels train brakes generate metal dust that can cause serious problems for network components. In addition, routine operation can also cause electromagnetic interference and vibration, which can seriously shorten the life of standard exchange equipment and cause mechanical problems.
Gotthard tunnels require a dedicated network with rugged components to ensure a secure network.
Rugged - enhanced network
Gotthard tunnel shows an enhanced network. What is an enhanced network? First, the switches, access points, and routers it uses have built-in security and dynamically tuned network performance for real-time application delivery and reliable broadband IP connectivity.
All of this needs to be built using industrial-grade network hardware.
The design and implementation of the data network was led by Alpiq InTec engineers who used over 450 industrial hardened OmniSwitch 6855 enhanced LAN switches to create the backbone of the data network throughout the tunnel. To deploy a network of up to 2.3 kilometers in the mountains, there is a need to minimize preventative and corrective maintenance. These switches use convective cooling, which uses a radiator instead of a fan for ventilation and cooling, to minimize the risk of metal particles entering the unit and damaging the internal electrical components.
Cover areas that standard networks can not cover
This specially enhanced network enables the Gotthard Tunnel to deploy IoT in areas not covered by the standard network, providing the required service levels for the world's longest, safest and most connected tunnels, ensuring a safe, comfortable Way to transport about 9,000 passengers.
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