TNS Asia Pacific Pte Ltd

Overview

More people are using trains to commute to work. As people are spending more time on trains, onboard Internet service is becoming increasingly important to help business travelers maximise their efficiency. As these travelers require high bandwidth WiFi is the best solution for such mobile communication. Besides Internet service, railway companies can also use wireless technology to provide multimedia entertainment services.

It is not difficult to implement a local WiFi network on a train. However, connecting to the Internet can be problematic because WiFi is not designed for high speed vehicles travelling at speeds over 80 km/h, such as a high speed train. Therefore, satellites are needed to connect high speed trains to the Internet.

Solution

An access point (AP) such as MOXA AWK-3121 can be installed in each coach to let passengers to use their laptops to connect to the Internet. These APs should be set to IEEE802.11b/g with a 2.4 GHz spectrum. Two additional APs connect different coaches together with IEEE802.11a and a 5 GHz spectrum. This can avoid RF conflict and reduce interference.

The AWK-3121 can also be used to connect the onboard WiFi network to a satellite gateway,
providing Internet access for high-speed trains. Because of vibrations and harsh environmental conditions, such as lightening, rain, etc., the solution needs to adhere to EN50155 certification standards.

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