An intrusive tunnel FM broadcast signal coverage system

Abstract

This utility model relates to the field of radio communication technology and discloses an intrusive tunnel FM broadcast signal coverage system, including a client host, a data server, an industrial switch, an active speaker, an intercom paging microphone, optical fiber, a communication system, a tunnel switch, a first emergency broadcast host, and a second emergency broadcast host. Under normal traffic conditions, the intrusive tunnel FM broadcast signal coverage system can be used for road information dissemination and wireless broadcasting, reducing traffic accidents and protecting people's lives and property. In emergency situations, it can broadcast various emergency notices, ensuring that information is delivered to drivers and passengers in a timely, accurate, and effective manner through wired and wireless means, thereby effectively guiding traffic flow, improving road transportation capacity, further enhancing tunnel management and operation levels and efficiency, and providing excellent service for safe and smooth driving.

Description

Technical Field

[0001] This utility model relates to the field of radio communication technology, and in particular to an intrusive tunnel FM broadcast signal coverage system. Background Technology

[0002] A tunnel is an engineering structure buried underground, representing a form of human utilization of underground space. The Organization for Economic Cooperation and Development (OECD) defined it in 1970 as "a cavern with a cross-sectional area greater than 2 square meters, constructed underground by any method, in a prescribed shape and size, for a specific purpose." Tunnels can be categorized by purpose (traffic tunnels, hydraulic tunnels, municipal tunnels, mining tunnels); by geological conditions (earth tunnels, rock tunnels); by length (short tunnels, medium-length tunnels, long tunnels, extra-long tunnels); by location (mountain tunnels, underwater tunnels, urban tunnels); and by burial depth (shallow tunnels, deep tunnels). A tunnel's structure comprises two parts: the main building and auxiliary equipment. The main building consists of the tunnel body and portals, while auxiliary equipment includes passing bays, fire-fighting facilities, emergency communication systems, and drainage systems. Longer tunnels also have specialized ventilation and lighting equipment. As a crucial component of transportation infrastructure, tunnels play a vital role in the passage of vehicles and pedestrians.

[0003] In the enclosed environment of a tunnel, due to the influence of terrain and structures, FM broadcast signals often have difficulty penetrating effectively, resulting in communication blind spots inside the tunnel. The safety and passage efficiency of the tunnel cannot be effectively guaranteed, and broadcasting within the tunnel cannot provide stable and high-quality service. Emergency broadcasting cannot be interrupted in case of emergencies, affecting the normal use of FM broadcasting.

[0004] To address this, we propose an intrusive tunnel FM broadcast signal coverage system. Utility Model Content

[0005] The present invention aims to solve the technical problems existing in the prior art and provide an intrusive tunnel FM broadcast signal coverage system.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an intrusive tunnel FM broadcast signal coverage system, comprising a client host, a data server, an industrial switch, an active speaker, an intercom paging microphone, optical fiber, a communication system, a tunnel switch, a first emergency broadcast host, a second emergency broadcast host, a first emergency FM near-end unit, a second emergency FM near-end unit, a power divider, a filter, a surge arrester, an FM receiving antenna, a first emergency FM remote unit, a second emergency FM remote unit, an RF feeder, a first tunnel-specific antenna, and a second tunnel-specific antenna, and a client host. The host computer, data server, industrial switch, active speaker, intercom paging microphone, fiber optic cable, communication system, tunnel switch, first emergency insertion host, second emergency insertion host, first emergency FM near-end unit, second emergency FM near-end unit, power divider, filter, surge arrester, FM receiving antenna, first emergency FM remote unit, second emergency FM remote unit, RF feeder, first tunnel-specific antenna and second tunnel-specific antenna are connected by electrical signals respectively. The client host computer, data server, industrial switch, active speaker, intercom paging microphone and communication system are set up in the monitoring center.

[0007] Preferably, the tunnel switch, the first emergency broadcast host, the second emergency broadcast host, the first emergency FM near-end unit, the second emergency FM near-end unit, the power divider, the filter, the surge arrester, and the FM receiving antenna are installed in the tunnel power distribution station.

[0008] Preferably, the first emergency FM remote unit, the second emergency FM remote unit, the radio frequency feeder, the first tunnel-specific antenna, and the second tunnel-specific antenna are installed inside the tunnel.

[0009] Preferably, the first and second tunnel-specific antennas are capable of enabling the normal propagation of radio waves within the tunnel.

[0010] Beneficial effects

[0011] This invention provides an intrusive tunnel FM broadcast signal coverage system. It has the following advantages:

[0012] (1) The intrusive tunnel FM broadcast signal coverage system can be used for road information dissemination and wireless broadcasting under normal traffic conditions, reducing traffic accidents and protecting people's lives and property; under emergency conditions, it can broadcast various emergency notices, ensuring that information can be delivered to drivers and passengers in a timely, accurate and effective manner through wired and wireless means, thereby effectively guiding traffic flow, improving road transportation capacity, further improving the level and efficiency of tunnel management and operation, and providing good service for drivers to drive safely and smoothly.

[0013] (2) This intrusive tunnel FM broadcast signal coverage system supports remote network insertion, supports insertion of remote equipment through the communication system in the monitoring center, and can realize independent insertion of the left and right tunnels. It supports synchronization with the direct signal of the radio station to directly convey emergency information to the people in the vehicle. By transmitting the modulated broadcast signal to the vehicle radio through FM insertion, the emergency information can be accurately conveyed to the people in the vehicle. It has the advantages of timely and direct transmission. It can forward the full frequency band of 87-108MHz and insert multiple emergency channels. It supports the operation and maintenance personnel to view the parameters of equipment operation, working status and fault information through handheld terminals. The management personnel can perform remote maintenance in the monitoring center. Attached Figure Description

[0014] Figure 1 This is a system diagram of the present invention. Detailed Implementation

[0015] Example 1: An intrusive tunnel FM broadcast signal coverage system, such as Figure 1 As shown, the system includes 10 components, including a client host, a data server, an industrial switch, active speakers, intercom paging microphones, optical fibers, a communication system, a tunnel switch, a first emergency broadcast host, a second emergency broadcast host, a first emergency FM near-end unit, a second emergency FM near-end unit, a power divider, filters, surge arresters, an FM receiving antenna, a first emergency FM remote unit, a second emergency FM remote unit, an RF feeder, a first tunnel-specific antenna, and a second tunnel-specific antenna. The system comprises a waveguide, surge arrester, FM receiving antenna, first emergency FM remote unit, second emergency FM remote unit, radio frequency feeder, first tunnel-specific antenna, and second tunnel-specific antenna, all connected by electrical signals. Through an intrusive tunnel FM broadcast signal coverage system, under normal traffic conditions, it can be used for road information dissemination and wireless broadcasting, reducing traffic accidents and protecting people's lives and property. In emergency situations, it can broadcast various emergency notices, ensuring timely, accurate, and effective delivery of information to drivers and passengers via wired and wireless means. This effectively guides traffic flow, improves road transportation capacity, further enhances tunnel management and operation levels and efficiency, and provides excellent service for safe and smooth driving.

[0016] Example 2: Based on Example 1, as follows Figure 1As shown, the client host, data server, industrial switch, active speakers, intercom paging microphones, and communication system are located in the monitoring center. The tunnel switch, first emergency broadcast host, second emergency broadcast host, first emergency FM near-end unit, second emergency FM near-end unit, power divider, filter, surge arrester, and FM receiving antenna are located in the tunnel substation. The first emergency FM remote unit, second emergency FM remote unit, RF feeder, first tunnel-specific antenna, and second tunnel-specific antenna are located inside the tunnel.

[0017] Example 3: Based on Examples 1 and 2, as follows... Figure 1 As shown, an FM radio signal is received by an FM receiving antenna installed outside the tunnel. The signal is filtered and amplified by a filter and a power divider before entering the first and second emergency FM near-end units. The first and second emergency FM near-end units convert the FM radio signal into optical signals, which are then transmitted via optical fiber to the first and second emergency FM far-end units inside the tunnel. The optical signals from the first and second emergency FM near-end units are converted into radio frequency signals and amplified again. The amplified signals are then distributed by the first and second emergency FM far-end units to the first tunnel-specific antenna and the second tunnel-specific antenna installed inside the tunnel, respectively. The dedicated antennas, including the first and second tunnel antennas, evenly cover the entire tunnel with signals, supporting remote network insertion and remote device insertion via communication system from the monitoring center. They also enable independent insertion in the left and right tunnels, and can synchronize with direct radio signals to directly transmit emergency information to vehicle occupants. FM insertion, by transmitting modulated broadcast signals to the vehicle radio, accurately transmits emergency information to occupants. The system supports full-band forwarding from 87 to 108 MHz, multiple emergency channels, and allows maintenance personnel to view equipment operating parameters, status, and fault information via handheld terminals. Remote maintenance can be performed from the monitoring center.

[0018] The working principle of this utility model is as follows: An FM radio receiving antenna installed outside the tunnel receives FM broadcast signals. The signals are filtered and amplified by a filter and a power divider, and then enter the first and second emergency FM near-end units respectively. The first and second emergency FM near-end units convert the FM broadcast signals into optical signals, and transmit the signals to the first and second emergency FM far-end units inside the tunnel via optical fibers. The optical signals transmitted from the first and second emergency FM near-end units are converted into radio frequency signals and amplified again. The amplified signals are then distributed by the first and second emergency FM far-end units to the first and second tunnel-specific antennas installed inside the tunnel, respectively. The first and second tunnel-specific antennas uniformly cover the entire tunnel with the signals. Under normal operating conditions, the main function of this intrusive tunnel FM radio signal coverage system is to disseminate road information and relay wireless broadcasts. Through an FM receiving antenna outside the tunnel, the system receives FM radio signals and, after a series of filtering, amplification, and conversion processes, evenly distributes the signal throughout the entire tunnel. This allows drivers inside the tunnel to receive clear broadcast information via their car radios, enabling them to stay informed about road conditions, weather, and other important information, reducing traffic accidents and protecting people's lives and property. In emergency situations, the system's function becomes even more critical. Through a monitoring center, administrators can control the system in real time and broadcast various emergency notices. These notices can be delivered to drivers and passengers promptly, accurately, and effectively via wired and wireless means. Furthermore, the system supports independent broadcasting in the left and right tunnels. This means that in special circumstances, different information can be conveyed to vehicles traveling in different directions, improving the flexibility and efficiency of traffic management. In addition, the system also supports synchronization with direct broadcast signals from radio stations, directly transmitting emergency information to people inside vehicles. Through FM broadcasting, the system can transmit modulated broadcast signals to in-vehicle radios, achieving accurate transmission of emergency information. This transmission method has the advantages of timeliness and directness, delivering important information to drivers in the shortest possible time, guiding them to make correct reactions and decisions. This intrusive tunnel FM broadcast signal coverage system not only has the functions of road information dissemination and wireless broadcasting, but also plays an important role in emergency situations, ensuring the timely, accurate, and effective transmission of information, improving road transportation capacity and tunnel management and operation levels, and providing good services for drivers' safe and smooth driving.

[0019] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An invasive tunnel FM broadcast signal coverage system, characterized by, The system includes a client host, data server, industrial switch, active speaker, intercom paging microphone, fiber optic cable, communication system, tunnel switch, first emergency insertion host, second emergency insertion host, first emergency FM near-end unit, second emergency FM near-end unit, power divider, filter, surge arrester, FM receiving antenna, first emergency FM remote unit, second emergency FM remote unit, RF feeder, first tunnel-specific antenna, and second tunnel-specific antenna. The client host, data server, industrial switch, active speaker, intercom paging microphone, fiber optic cable, communication system, tunnel switch, first emergency insertion host, second emergency insertion host, first emergency FM near-end unit, second emergency FM near-end unit, power divider, filter, surge arrester, FM receiving antenna, first emergency FM remote unit, second emergency FM remote unit, RF feeder, first tunnel-specific antenna, and second tunnel-specific antenna are all connected via electrical signals. The client host, data server, industrial switch, active speaker, intercom paging microphone, and communication system are located in the monitoring center.

2. The invasive tunnel FM broadcast signal coverage system of claim 1, wherein: The tunnel power distribution station is equipped with the switch, the first emergency broadcast host, the second emergency broadcast host, the first emergency FM near-end unit, the second emergency FM near-end unit, the power divider, the filter, the surge arrester, and the FM receiving antenna.

3. The invasive tunnel FM broadcast signal coverage system of claim 1, wherein: The first emergency FM remote unit, the second emergency FM remote unit, the radio frequency feeder, the first tunnel-specific antenna, and the second tunnel-specific antenna are installed inside the tunnel.

4. The invasive tunnel FM broadcast signal coverage system of claim 1, wherein: The first and second tunnel-specific antennas enable the normal propagation of radio waves within the tunnel.

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