Coaxial Cable with Separable Sheath for Multi-Service LAN
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Solution Overview
Problem
Current local area network installations face challenges in providing simultaneous access to multiple services, including voice, video, and multimedia, due to limitations in data transmission capacity and compatibility with devices lacking radio frequency transceivers, as well as the inability to access services like landline telephones and satellite television via WiFi.
Innovation Solution
A local network installation comprising a coaxial coupler, transceiver modules, and cables with a specific conductor assembly and sheath design, allowing independent connection of coaxial and metal conductors, which enables the transmission of radio-over-coaxial data signals and other services like telephone and Ethernet signals without additional installation costs, and allows for remote placement of modem routers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If WiFi protocols are used to transmit data wirelessly, then data transmission capacity is improved, but compatibility with devices lacking radio frequency transceivers deteriorates
Solution Approach 1:
The cable is divided into two separate conductor assemblies (coaxial and twisted pair) that can be independently connected, allowing the system to support both wireless high-speed transmission and wired legacy device connectivity through the same physical infrastructure
Solution Approach 2:
The cable structure is designed to carry multiple types of signals simultaneously - both coaxial signals for radio-over-coaxial wireless transmission and twisted pair signals for Ethernet/wired connectivity to legacy devices, making the installation universally compatible with various device types
2Ease of manufacture
If coaxial and metal conductors are grouped together in the same cable, then installation cost is reduced, but connection complexity increases
Solution Approach 1:
The sheath is separated into two longitudinally separable elements, each providing independent access to one conductor assembly, allowing installers to connect only the required service (coaxial or twisted pair) without having to manage both connections simultaneously, thus reducing connection complexity while maintaining cost-effectiveness
3Length of moving object
If radio frequency signals are transmitted through walls and metal structures, then wireless coverage range is improved, but signal attenuation increases
Solution Approach 1:
The coaxial conductor assembly serves as an intermediary transmission medium that carries radio frequency signals through the building's existing coaxial infrastructure to various rooms, where local transceivers then provide wireless coverage, effectively bypassing the attenuation problems of direct wireless transmission through walls and metal structures
Data Source
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AI summary
The invention relates to a local area network installation (300'), comprising: - a radio-frequency coaxial coupler (305'), - transceiver modules (307') to be distributed in different locations (301-303) of a building, - cables (1"), each comprising a first conductor set (3) comprising two metallic conductors (5), a second coaxial conductor set (4'), a sheath (2) surrounding the first and second sets, the sheath comprising two elements (11, 12) separable longitudinally for independent connection of the first and second sets, each cable connecting the coupler to one of the modules via the second set, each transceiver module being adapted to transmit, according to a wireless communication protocol, to user terminals (319, 320) in the building, data signals transmitted by the second set,and transmit, via the second set, data signals received from the terminals according to a wireless communication protocol.