Both on the road and on the web: where the Internet accompanies us
By connecting to the Internet on the train, the user will first be taken to a specialized site, similar to the one launched for Wi-Fi in the Moscow metro. Movies and music will be uploaded to the site, where passengers will be able to order food online from the restaurant car or learn interesting facts about the route. If users want to browse their favorite digital edition or chat with friends on social networks, Wi-Fi will have to pay. Connecting to the Internet on the train for a day will cost about 100-200 rubles.
Now passengers traveling on Sapsan or other branded trains can use the wireless Internet on the train. However, as passengers of high-speed trains note, free Internet in Sapsan works with severe interruptions and not on the entire route. After connecting to the network, users get to the Russian Railways website with already embedded content, but they also have to pay to access the global network.
Passengers traveling to the airport by “Aeroexpress” often face connection problems – since October last year, all trains have been equipped with a wireless network. By connecting the trains to the Internet, the company did not forget to raise ticket prices. Considering that the approximate travel time of Aeroexpress from any airport is just over 30 minutes, the question of which part of passengers will use it remains open (provided that almost everyone has mobile Internet today).
Recently, Wi-Fi has been operating in test mode at stops and in ground transport; in the fall of 2016, for three months, a single network was carried out in suburban electric trains. However, using wireless Internet on a bus or train is also problematic: often a mobile device “finds” the network and even connects to it, but the Internet does not work.
To date, only Wi-Fi in the Moscow metro has been working practically without interruptions. Despite the complaints of subway passengers about advertising when connected, now it seems impossible to imagine a single trip in the subway without the Internet. Starting this year, according to preliminary data, residents of St. Petersburg will be able to connect to Wi-Fi in the metro.
How it works
In the metro, Internet access is provided through a radio channel between base stations and fin antennas in the head carriages of the train, which receive the signal and distribute it to the access points in the remaining cars. The train is constantly connected to the network at a speed of 70 to 100 Mbit / s, while the optical cable extended to the base stations is about 10 Gbit / s. This means that the connection speed allows users not only to view their mail, but also, for example, listen to music online.
In land transport, Wi-Fi is generally easier to work with than in the subway. This requires a router that also receives signals from the base stations of the cellular operator. Network connection problems, according to experts, may be due to insufficient signal transmission speed.
Unlike buses, there are fewer problems with the Internet on the International Space Station (it has been distributed there since 2010). However, it is naturally inaccessible to ordinary Russians; only our cosmonauts can use it. They can go to the World Wide Web, but not directly: the station has access to the internal NASA service network and the connection to web pages is done using the remote access program. The information transfer rate is up to 3 Mbit / s, and data is transmitted to the Earth at a speed of 50 to 300 Mbit / s. However, the threshold of 300 Mbps is rarely reached. But it still works better than on public transport. The space station has a local area network server to which computers are connected, the server connects to communications equipment in the Ku-band (the frequency range of centimeter wavelengths used in satellite television, which, as defined by the IEEE, extends from 12 to 18 GHz of the electromagnetic spectrum). The antenna sends a signal to the TDRS group satellite, which is located about 35 thousand kilometers from the ISS, and only then the signal is sent to Earth, in the state of New Mexico. After that, the data is sent via the channel to the Mission Control Center. Already there, a direct connection to the page takes place, after which the data repeats the same path in the opposite direction.
Throw nets into the sky
While the time at the airport in the event of a flight delay from Russia to warmer countries will not be so boring: in the near future, a unified Wi-Fi will appear at the international airports of Russia.
At this time, major foreign airlines, such as Lufthansa Austrian Airlines, are connecting Airbus liners to the Internet. Travelers traveling short to medium distances (usually flights between European countries) will be able to use Wi-Fi.