Cable tunnel wireless communication system based on optical fiber repeater and leaky cable

Abstract

The invention discloses a cable tunnel wireless communication system based on an optical fiber repeater and a leaky cable, which comprises a base station module and a distributed antenna module, and is characterized in that the base station module comprises an optical fiber repeater near-end machine, wherein the optical fiber repeater near-end machine is connected with optical fiber repeater far-end machines in a cable tunnel through an armored optical fiber and picks up communication signals covering the outside of the cable tunnel through a receiving antenna; a plurality of optical fiber repeater far-end machines which receive communication signals of the optical fiber repeater near-end machine through armored optical fibers and carry out secondary enhancement on the communication signals; the distributed antenna module mainly achieves the effects of transmitting and receiving wireless communication signals through the leaky cable. According to the method, the communication coverageproblem in the cable tunnel is effectively optimized and solved, the method is suitable for matching with the cable tunnel path trend problem, the power supply problem and the fireproof problem, and effective interconnection between people and a cable online monitoring main station platform is achieved.

Description

technical field [0001] The invention relates to the field of transmission cable communication, in particular to a cable tunnel wireless communication system based on an optical fiber repeater and a leaky cable. Background technique [0002] It is an inevitable process for the development of smart cities to integrate high-voltage overhead transmission lines into the ground. The lack of communication network coverage in the existing cable tunnels cannot guarantee the normal communication between the operation and maintenance personnel in the tunnels, the tunnel monitoring center and the outside, causing great inconvenience in construction, maintenance, and inspection work. Since the mobile communication and GPS signals cannot be received in the tunnel, the operation and maintenance personnel are in a state of disconnection after entering the cable tunnel. There is no smooth communication and interconnection channel with the cable online monitoring main station platform. The al...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a wireless communication system suitable for matching with cable tunnels, to solve the problem of lack of communication coverage in cable tunnels, and to fully consider the characteristics of tunnel direction and the shielding restrictions of fire doors

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