Wireless ad hoc network composition method and wireless ad hoc network system

Abstract

The invention provides a wireless ad hoc network composition method and a wireless ad hoc network system. The wireless ad hoc network composition method according to the invention comprises the following steps: first step: in each carriage in a rail transit vehicle, respectively connecting two wireless bridges arranged at the head and the tail of the carriage through a vehicle-mounted server or avehicle-mounted network switch that is exclusive to the carriage in a wired connection manner, in order to form a wireless networking unit of the carriage; and second step: performing wireless communication by using the wireless networking units of the carriages in the rail transit vehicle to form a total Internet.

Description

technical field [0001] The invention relates to a method for forming a wireless ad hoc network and a wireless ad hoc network system constructed by means of the method for forming a wireless ad hoc network. Background technique [0002] With the development of the mobile Internet, surfing the Internet anytime, anywhere has become a common demand for everyone. In response to this demand, it is an inevitable trend to provide WiFi access services in rail transit vehicles to meet the needs of passengers for wireless Internet access. [0003] To provide Wi-Fi services for rail transit vehicles, it is necessary to connect the entire train to build a network environment for the entire train to provide local area network and Internet services for passengers. For rail transit vehicles that have not deployed a wired network system for inter-car interconnection at the factory, there is no reserved network installation location and cross-connection on the train. It is expensive and diff...

AI Technical Summary

Problems solved by technology

[0003] To provide Wi-Fi services for rail transit vehicles, it is necessary to connect the entire train to build a network environment for the entire train to provide local area network and Internet services for passengers. For rail transit vehicles that have not deployed a wired network system for inter-car interconnection at the factory, there is no reserved network installation location and cross-connection on the train. It is expensive and difficult to implement the interface installed in the carriage, and it is difficult to implement the addition of a wired network; the traditional Mesh wireless networking solution has a large bandwidth loss after multiple hops, with an average bandwidth loss of more than 25% per hop, and can reach up to 20 carriages. In the environment of rail transit vehicles, the traditional Mesh networking technology has a total loss of more than 90% under 10 hops, and the final bandwidth cascaded from the front, rear to the center cannot meet the needs of passengers for wireless Internet access.

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