A signal amplifier for 5G gateway tunnels

Abstract

This utility model relates to the field of 5G communication equipment technology and discloses a signal amplifier for a 5G gateway tunnel. It includes a main signal amplification component, which is equipped with a distributed antenna component. The main signal amplification component includes a signal amplification motherboard, serving as the core signal processing carrier. It integrates multiple modules to achieve signal reception, amplification, modulation, and demodulation functions. A main control chip is located at the top center of the front end of the signal amplification motherboard, used to schedule the work of each module and process data, ensuring efficient operation of the signal processing flow. This utility model, through the collaboration of the main signal amplification component and the distributed antenna component, the integration of multiple modules on the signal amplification motherboard, and the scheduling by the main control chip, solves the problem of uneven signal coverage in tunnels, adapts to complex tunnel structures, and achieves integrated efficient signal reception, amplification, and distributed coverage, ensuring stable communication for multiple devices.

Description

Technical Field

[0001] This utility model relates to the field of 5G communication equipment technology, specifically a signal amplifier for 5G gateway tunnels. Background Technology

[0002] In tunnel scenarios, 5G signals are affected by the narrow structure of tunnels, wall obstruction, and electromagnetic interference, resulting in problems such as small coverage area, rapid signal attenuation, and unstable communication among multiple devices. Existing 5G gateway signal amplifiers for tunnels have the following shortcomings: First, the signal coverage uniformity is poor, and signal blind spots are easily formed in areas such as tunnel curves and intersections, making them unsuitable for complex tunnel structures; second, their anti-interference capability is weak, making it difficult to cope with electromagnetic interference generated by equipment such as motors and lighting in the tunnel, leading to signal distortion and high packet loss rates; third, the component integration is low, installation and maintenance are complex, and the coordination between modules is poor, making it impossible to efficiently achieve integrated operation of signal reception, amplification, and distributed coverage, and failing to meet the high requirements of intelligent tunnel communication (such as autonomous driving of vehicles and remote monitoring of equipment). Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a signal amplifier for 5G gateway tunnels. By setting up a collaborative structure of main signal amplification components and distributed antenna components, as well as functional modules such as protection and heat dissipation, signal processing, and power supply, it solves problems such as uneven 5G signal coverage, weak anti-interference ability, difficult installation and maintenance, and poor coordination of multiple components in tunnels, thereby achieving efficient signal amplification, stable transmission, and distributed coverage.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a signal amplifier for a 5G gateway tunnel, comprising a main signal amplification component, wherein the main signal amplification component is configured with a distributed antenna component.

[0007] The main signal amplification component includes a signal amplification motherboard, which serves as the core signal processing carrier. It integrates multiple modules to achieve functions such as signal reception, amplification, modulation, and demodulation. A main control chip is located at the top center of the front end of the signal amplification motherboard, used to schedule the work of each module and process data, ensuring the efficient operation of the signal processing flow. A protective heat dissipation component is installed on the outside of the signal amplification motherboard to resist harsh environments such as tunnel dust, moisture, and high temperatures, ensuring equipment stability. A power supply component is located at the bottom of the signal amplification motherboard to provide continuous power to the equipment. Signal processing components that match the distributed antenna components are located at both ends of the signal amplification motherboard to achieve compatible transmission of signals with the distributed antenna.

[0008] The signal processing component includes a signal processing motherboard located on both sides of the front end of the signal amplification motherboard, which integrates a radio frequency receiving module, a signal amplification module, and a signal filtering and modulation / demodulation module. The signal processing component also includes a signal transmission connector located in the middle of both ends of the signal amplification motherboard for connecting a distributed antenna assembly to construct a signal transmission path.

[0009] The distributed antenna assembly includes connectors that plug into two signal transmission connector sockets to achieve physical connection between the main signal amplification component and the antenna system; each of the two connectors is fixedly connected to an anti-interference line at one end, which is made of low-loss, anti-interference material to reduce signal transmission attenuation and resist tunnel electromagnetic interference; multiple remote antenna elements are installed at equal intervals on the anti-interference line, and through the combination of directional / omnidirectional antennas, it can adapt to the signal coverage requirements of different areas of the tunnel.

[0010] As a further improvement of this utility model: the protective heat dissipation component includes a mounting base plate fixedly connected to the rear end of the signal amplification motherboard, with oblong holes between the front and rear side walls at its four corners for easy fixed installation and adaptation to different tunnel installation scenarios; it also includes a protective housing fixedly mounted on the front end of the mounting base plate and outside the signal amplification motherboard, with two symmetrical fan slots on the front end of the inner side wall of the protective housing, each housing a fixed cooling fan to accelerate internal airflow and heat dissipation; multiple heat dissipation holes are arrayed at both the top and bottom ends of the inner side wall to assist in heat dissipation. A first mounting slot for power connector mounting is provided at the bottom end of the inner side wall of the protective housing, and second mounting slots for signal transmission connector mounting are provided at both ends of the inner side wall, ensuring stable component installation and smooth signal transmission.

[0011] As a further improvement of this utility model: the power supply component includes a power module located at the lower center of the front end of the signal amplification motherboard, which can be adapted to AC220V or DC48V tunnel power supply and has overvoltage and overcurrent protection; it also includes a power connector fixedly connected at the lower center of the front end of the mounting base plate, which is connected to the signal amplification motherboard through a connecting cable to ensure stable power transmission, and can be equipped with a backup battery, which can provide ≥30 minutes of battery life when power is off.

[0012] As a further improvement of this utility model: antennas are provided at both ends of the far-end antenna unit, which can flexibly switch between directional and omnidirectional modes to adapt to different areas of the tunnel for coverage; multiple heat dissipation fins are fixedly connected to the front end in an array to assist in the heat dissipation of the far-end antenna unit; mounting bases are fixedly connected to the middle of both the upper and lower ends, and mounting holes are opened between the front and rear side walls to facilitate the assembly of mounting components to fix the far-end antenna unit on the tunnel wall / top, ensuring the stability of the antenna position.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this utility model, the main signal amplification component and the distributed antenna component work together, the signal amplification motherboard integrates multiple modules, and the main control chip schedules the signal amplification. This solves the problem of uneven signal coverage in tunnels, adapts to complex tunnel structures, and achieves integrated efficient signal reception, amplification and distributed coverage, ensuring stable communication of multiple devices.

[0015] 2. In this utility model, the low loss and anti-interference characteristics of the anti-interference line, combined with the filtering and modulation / demodulation modules of the signal processing components, effectively resist tunnel electromagnetic interference, reduce signal distortion and packet loss rate, improve the reliability of 5G network, and meet the high requirements of intelligent tunnel communication.

[0016] 3. In this utility model, the main signal amplification component is integrated and modularly designed, with mounting base plate waist-shaped holes, protective shell snap-fit, distributed antenna plug-in, and equidistant installation method, which simplifies the installation process. Each module is independent, which facilitates fault diagnosis and replacement, reduces maintenance costs, improves component synergy, and ensures stable signal transmission throughout the entire process. Attached Figure Description

[0017] Figure 1 The overall three-dimensional structure of this utility model Figure 1 ;

[0018] Figure 2 The overall three-dimensional structure of this utility model Figure 2 ;

[0019] Figure 3 This is a perspective view of the main signal amplification component of this utility model;

[0020] Figure 4 This is a three-dimensional view of the distributed antenna assembly of this utility model.

[0021] In the diagram: 1. Main signal amplification assembly; 2. Distributed antenna assembly; 11. Mounting base plate; 12. Waist-shaped hole; 13. Signal amplification main board; 14. Main control chip; 15. Power module; 16. Power connector; 17. Connecting cable; 18. Signal transmission connector; 19. Signal processing main board; 110. Protective housing; 111. Fan slot; 112. Cooling fan; 113. First assembly slot; 114. Second assembly slot; 115. Heat dissipation hole; 21. Connecting connector; 22. Anti-interference cable; 23. Remote antenna unit; 24. Mounting base; 25. Heat dissipation fins; 26. Antenna. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Please see Figures 1-4 In this embodiment of the present invention, a signal amplifier for a 5G gateway tunnel includes a main signal amplification component 1, which is equipped with a distributed antenna component 2.

[0026] The main signal amplification component 1 includes a signal amplification motherboard 13, which serves as the core signal processing carrier. It integrates multiple modules to achieve functions such as signal reception, amplification, modulation, and demodulation. A main control chip 14 is located at the top center of the front end of the signal amplification motherboard 13, which is used to schedule the work of each module and process data to ensure the efficient operation of the signal processing flow. A protective heat dissipation component is provided on the outside of the signal amplification motherboard 13 to resist harsh environments such as tunnel dust, moisture, and high temperature, ensuring the stability of the equipment. A power supply component is located at the bottom of the signal amplification motherboard 13 to provide continuous power to the equipment. Signal processing components that match the distributed antenna component 2 are located at both ends of the signal amplification motherboard 13 to achieve the adaptation and transmission of signals with the distributed antenna.

[0027] The signal processing component includes signal processing motherboards 19 located on both sides of the front end of the signal amplification motherboard 13. These motherboards integrate a radio frequency receiving module (capturing 5G signals from outside the tunnel / base station and filtering environmental interference), a signal amplification module (low-noise amplifier + power amplifier to achieve multi-level signal enhancement and meet long-distance transmission requirements), and a signal filtering and modulation / demodulation module (screening 5G frequency bands, completing digital-to-analog conversion, and adapting to 5G protocols). The signal processing component also includes signal transmission connectors 18 located in the middle of both ends of the signal amplification motherboard 13 for connecting the distributed antenna assembly 2 to construct a signal transmission path.

[0028] The distributed antenna assembly 2 includes a connector 21 that plugs into two signal transmission connectors 18 to achieve physical connection between the main signal amplification assembly 1 and the antenna system; each of the two connectors 21 is fixedly connected to an anti-interference line 22 at one end, which is made of low-loss, anti-interference material to reduce signal transmission attenuation and resist tunnel electromagnetic interference; multiple remote antenna elements 23 are installed at equal intervals on the anti-interference line 22, which can be adapted to the signal coverage requirements of different areas of the tunnel (straight road, curve, and branch road) through directional / omnidirectional antenna combination.

[0029] The protective heat dissipation assembly includes a mounting base plate 11 fixedly connected to the rear end of the signal amplification motherboard 13. The base plate has oblong holes 12 between its four corners and the front and rear side walls for easy installation and adaptability to different tunnel installation scenarios. It also includes a protective housing 110 fixedly mounted to the front of the mounting base plate 11 and outside the signal amplification motherboard 13. The protective housing 110 has two symmetrically arranged fan slots 111 on its inner side wall, each housing a cooling fan 112 to accelerate internal airflow and heat dissipation. Multiple heat dissipation holes 115 are arrayed at both the top and bottom of the inner side wall to aid in heat dissipation. A first mounting slot 113 for power connector 16 is located at the bottom of the inner side wall of the protective housing 110, and second mounting slots 114 for signal transmission connector 18 are located at both ends of the inner side wall, ensuring stable assembly and smooth signal transmission.

[0030] The power supply components include a power module 15 located at the lower center of the front of the signal amplification motherboard 13, which can be adapted to AC220V or DC48V tunnel power supply and has overvoltage and overcurrent protection; it also includes a power connector 16 fixedly connected at the lower center of the front of the mounting base plate 11, which is connected to the signal amplification motherboard 13 through a connecting cable 17 to ensure stable power transmission. An optional backup battery can be provided, which can provide ≥30 minutes of battery life when power is off.

[0031] Antennas 26 are mounted on both ends of the far-end antenna unit 23, allowing for flexible switching between directional and omnidirectional modes to adapt to different areas of the tunnel. Multiple heat dissipation fins 25 are fixedly connected in an array at the front end to assist in heat dissipation for the far-end antenna unit 23. Mounting bases 24 are fixedly connected to the middle of both the top and bottom ends, and mounting holes are provided between the front and rear side walls to facilitate the assembly of mounting components and secure the far-end antenna unit 23 to the tunnel wall / top, ensuring antenna stability.

[0032] The working principle of this utility model is as follows: Using the oblong holes 12 of the mounting base plate 11, the main signal amplification component 1 is fixed to a suitable position on the tunnel wall or top with bolts, avoiding areas with dense equipment and facilitating signal reception. The power module 15 is connected to the power connector 16 via the connecting cable 17 to ensure a power supply path. The connecting connector 21 is inserted into the signal transmission connector 18 to fix the anti-interference line 22. Based on the tunnel length and structure (straight and curved sections), the remote antenna units 23 are installed at equal intervals and fixed to the tunnel wall using the mounting holes of the mounting base 24. The direction of the antenna 26 is adjusted (directional antennas along the tunnel axis, omnidirectional antennas for forks / curves). After the equipment is powered on, the power module 15 supplies power to the signal amplification motherboard 13, the main control chip 14, etc. The main control chip 14 starts and schedules various functions. Module: The radio frequency receiving module of the signal processing motherboard 19 captures 5G signals from outside the tunnel / base station. After processing by the signal amplification module (low-noise amplifier for initial amplification, power amplifier for enhancement) and the signal filtering and modulation / demodulation module (frequency band selection, digital-to-analog conversion), the signals are transmitted to the anti-interference line 22 through the signal transmission connector 18 and the connection connector 21. The anti-interference line 22 transmits the signals to each remote antenna unit 23, which is then transmitted by the antenna 26 in directional or omnidirectional mode to achieve distributed 5G signal coverage in the tunnel. During operation, the cooling fan 112 and the heat dissipation holes 115 of the protective shell 110 work together to dissipate heat and ensure stable operating temperature of the equipment. The main control chip 14 monitors the equipment status (signal strength, temperature, etc.) in real time and triggers local (indicator light, buzzer) or remote alarms when abnormalities occur, which facilitates operation and maintenance.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A signal amplifier for a 5G gateway tunnel, comprising a main signal amplification component (1), wherein the main signal amplification component (1) is configured with a distributed antenna component (2). Its features are: The main signal amplification component (1) includes a signal amplification motherboard (13), a main control chip (14) is provided above the middle of the front end of the signal amplification motherboard (13), a protective heat dissipation component is provided on the outside of the signal amplification motherboard (13), a power supply component is provided at the bottom of the signal amplification motherboard (13), and signal processing components that match the distributed antenna component (2) are provided at both ends of the signal amplification motherboard (13). The signal processing component includes a signal processing motherboard (19) arranged on both sides of the front end of the signal amplification motherboard (13). The signal processing motherboard (19) is provided with a radio frequency receiving module, a signal amplification module, and a signal filtering and modulation / demodulation module. The signal processing component also includes a signal transmission connector (18) arranged in the middle of both ends of the signal amplification motherboard (13). The distributed antenna assembly (2) includes two connectors (21) inserted into two signal transmission connectors (18). Each of the two connectors (21) is fixedly connected to an anti-interference line (22) at one end. Multiple remote antenna elements (23) are installed on the anti-interference line (22) at equal intervals.

2. The signal amplifier for a 5G gateway tunnel according to claim 1, characterized in that: The protective heat dissipation assembly includes a mounting base plate (11) fixedly connected to the rear end of the signal amplification motherboard (13). The mounting base plate (11) has waist-shaped holes (12) between the front and rear side walls at the four corners. The protective heat dissipation assembly also includes a protective housing (110) that is snapped and fixedly installed at the front end of the mounting base plate (11) and located outside the signal amplification motherboard (13).

3. The signal amplifier for a 5G gateway tunnel according to claim 1, characterized in that: The power supply component includes a power module (15) located at the lower center of the front end of the signal amplification motherboard (13). The power supply component also includes a power connector (16) fixedly connected to the lower center of the front end of the mounting base plate (11). The power connector (16) is connected to the signal amplification motherboard (13) via a connecting cable (17).

4. A signal amplifier for a 5G gateway tunnel according to claim 2, characterized in that: The protective housing (110) has two fan slots (111) symmetrically opened at the front end of the inner side wall. A cooling fan (112) is fixedly installed in the fan slot (111). Multiple heat dissipation holes (115) are arranged in an array at both the upper and lower ends of the inner side wall of the protective housing (110).

5. A signal amplifier for a 5G gateway tunnel according to claim 4, characterized in that: The bottom of the inner wall of the protective housing (110) is provided with a first assembly groove (113) for the installation of a power connector seat (16), and the two ends of the inner wall of the protective housing (110) are provided with a second assembly groove (114) for the installation of a signal transmission connector seat (18).

6. A signal amplifier for a 5G gateway tunnel according to claim 1, characterized in that: The far-end antenna unit (23) has antennas (26) above both ends, and the front end of the far-end antenna unit (23) is fixedly connected with multiple heat dissipation fins (25) in an array.

7. A signal amplifier for a 5G gateway tunnel according to claim 1, characterized in that: The far-end antenna unit (23) is fixedly connected to the middle of both the upper and lower ends with mounting bases (24), and mounting holes are provided between the front and rear side walls of the mounting base (24).

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