Train compartment WIFI (Wireless Fidelity) coverage network

Abstract

The invention discloses a train compartment WIFI (Wireless Fidelity) coverage network. The train compartment WIFI coverage network comprises a train wired Ethernet communication subsystem, a train wireless coverage subsystem, a train-ground communication subsystem and an on-board service subsystem, wherein the train wired Ethernet communication subsystem comprises switches distributed in compartments and Ethernet cables for connecting the switches; the Ethernet cables bridge the compartments to interconnect the switches in the compartments, thereby forming a looped network for a whole train; the train wireless coverage subsystem is used for providing wireless access points (APs) for terminals; and the train-ground communication subsystem is used for providing a communication channel for network data in the train, and updating content of a train on-board server. According to the train compartment WIFI coverage network, wireless APs and antennas are deployed in the compartments to realize full WIFI coverage of the compartments, so that passengers can get high wireless signal coverage quality through the antennas which are uniformly distributed at different positions of the compartments; signal loss due to penetration of a metal train body in the prior art is avoided; and a user access capability under a train full-load condition is improved.

Description

technical field [0001] The invention relates to the technical field of subway information services, in particular to a WIFI coverage network in train cars. Background technique [0002] The 3G / 4G wireless communication systems provided by existing operators in subways generally adopt tunnel leaky cable coverage. Due to the blockage of the metal body of the train, the signal in the compartment is severely attenuated, and the existing wireless communication methods cannot provide high-bandwidth information services. In addition, during the peak period, the density of passengers in the compartment is particularly high. Due to the serious blocking of wireless signals by the human body, high-quality wireless coverage cannot be achieved. [0003] At present, the information service system in the train compartment generally adopts the form of one-way broadcast, that is, the form of screen broadcast and audio broadcast, which cannot effectively interact with passengers. This tradi...

AI Technical Summary

Problems solved by technology

Due to the obstruction of the metal body of the train, the signal in the compartment is seriously attenuated, and the existing wireless communication methods cannot provide high-bandwidth information services

In addition, during the peak period, the density of passengers in the car is particularly high, and the human body seriously blocks the wireless signal, which makes it impossible to achieve high-quality wireless coverage

[0003] At present, the information service system in the train compartment generally adopts the form of one-way playback, that is, the form of screen playback and audio broadcast, which cannot effectively interact with passengers

This traditional service model is single and lacks interactivity, passengers can only receive information passively

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