Residential communities, villas, hotels, office buildings, large venues, tunnels, and mines are fully connected to the internetmobile phoneSignal coverage engineering solution.
Tunnel signal coverage mainly refers to major engineering projects such as railway tunnels, highway tunnels, underwater tunnels, subway tunnels, etc. Due to the fact that tunnels are generally located tens to hundreds of meters underground and have a length of several kilometers to tens of kilometers, the signal coverage cannot reach the inside, especially for the advancement of tunnel excavation projects. Considering safety, outdoor signals generally need to be introduced into the tunnel and transmitted into the tunnel through a repeater to solve the problem of no signal inside the tunnel.
So how to solve the problem of tunnel mobile phone signals? Solving tunnel * signals is different from solving traditional mobile phone signals. Because the distance of the tunnel is very far, using coaxial cables for transmission will definitely attenuate. It is impossible to achieve such a long transmission distance with coaxial cables, so optical fibers must be used for transmission. The signal source is transmitted through optical fibers to the middle of the tunnel before amplification begins. The line is deployed on both sides. If the signal attenuates to -80DB, a repeater can be used to extend it
One near end unit of the full network digital fiber optic repeater has four optical ports, and a single optical port can connect six remote units in a chain. With more than four optical ports, it can tow 24 remote units. The network mode is flexible and versatile, including point-to-point networking, star networking, daisy chain networking, and hybrid networking. It can form a distributed coverage system for large-scale coverage, especially suitable for long-distance strip coverage areas.
Hybrid networking method
Product Features
★ Supports 2G+3G+4G full carrier frequency bands simultaneously
★ Fiber optic transmission, single device single fiber implementation, fewer nodes, single wiring, simple construction and installation, high system reliability, and convenient maintenance
★ The output power of each standard can be adjusted to improve the accuracy of coverage range
★ High energy efficiency ratio, the power amplifier adopts digital pre distortion technology to improve the overall equipment efficiency
★ It has alarm functions such as anti-theft, power failure, and malfunction
★ Supports optical bypass and optical loop functions
★ Intelligent station opening, installed directly after site selection, can be used directly without debugging gain matching
★ Supports star, daisy chain, and hybrid networking methods, with flexible and diverse networking options
Application scenarios
Scenes such as mines, tunnels, and remote mountainous areas are severely obstructed by mountains and may lack fiber optic cable resources. Wireless receiving full network systems can be used for coverage.
In large-scale scenarios, indoor and outdoor collaborative coverage is generally required. In the sports field area, a "full network+indoor distribution system" is used to cover the work area and corridors, and directional beautification antennas are used to cover the stands.
