CN221042853U - Tunnel communication intercom device - Google Patents
Tunnel communication intercom device Download PDFInfo
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- CN221042853U CN221042853U CN202323029364.6U CN202323029364U CN221042853U CN 221042853 U CN221042853 U CN 221042853U CN 202323029364 U CN202323029364 U CN 202323029364U CN 221042853 U CN221042853 U CN 221042853U
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- 230000003287 optical effect Effects 0.000 claims abstract description 32
- 239000013307 optical fiber Substances 0.000 claims abstract description 27
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 239000000835 fiber Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 241000699670 Mus sp. Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model relates to a tunnel communication intercom device, which comprises an intercom in a tunnel, a plurality of wireless signal transceivers, a plurality of signal amplifiers, an optical fiber transmitter, a relay station, an antenna and an intercom outside the tunnel; each wireless signal transceiver is connected with a signal amplifier through a communication cable respectively, a plurality of signal amplifiers are connected with different ports of an optical fiber transmitter through the communication cable respectively, the optical fiber transmitter is connected with a relay station through a trunk optical cable, and the relay station is connected with an antenna. The plurality of wireless signal transceivers can cover the whole tunnel, so that communication signals between the interphone in the tunnel and the interphone outside the tunnel are only transmitted in a short distance in the tunnel, the signals are effectively prevented from being influenced by the environment in the tunnel, and stable transmission of the signals inside and outside the tunnel is further ensured.
Description
Technical Field
The utility model relates to the technical field of communication systems, in particular to a tunnel communication intercom device.
Background
There is typically a large amount of reflection and refraction within the tunnel, which factors may lead to changes in the wireless signal path and degradation of the wireless signal quality. And secondly, the space of the tunnel is narrow, so that signals are easily interfered by adjacent objects, and the communication quality is further affected. Therefore, the traditional wireless intercom communication system is not good in performance when being applied to communication inside and outside a tunnel, and the problems of signal interruption or unstable connection often occur, so that the quality and the efficiency of communication are seriously affected.
Disclosure of utility model
The technical problem to be solved by the utility model is to provide a tunnel communication intercom device so as to overcome the defects in the prior art.
The technical scheme for solving the technical problems is as follows: a tunnel communication intercom device comprises an intercom in a tunnel, a plurality of wireless signal transceivers, a plurality of signal amplifiers, an optical fiber transmitter, a relay station, an antenna and an intercom outside the tunnel;
Each wireless signal transceiver is connected with a signal amplifier through a communication cable respectively, a plurality of signal amplifiers are connected with different ports of an optical fiber transmitter through the communication cable respectively, the optical fiber transmitter is connected with a relay station through a trunk optical cable, and the relay station is connected with an antenna;
The wireless signal transceivers are paved in the tunnel at intervals along the length direction of the tunnel, the signal amplifiers are paved outside the tunnel at intervals corresponding to the wireless signal transceivers along the length direction of the tunnel, and the optical fiber transmitter, the relay station, the antenna and the interphone outside the tunnel are uniformly distributed outside the tunnel.
The beneficial effects of the utility model are as follows: the method comprises the steps that signal connection is established between an intercom in a tunnel and a wireless signal transceiver closest to the intercom in the tunnel, the intercom in the tunnel transmits signals to the wireless signal transceiver closest to the intercom in the tunnel, and the wireless signal transceiver amplifies the signals through a corresponding signal amplifier and then sequentially transmits the signals to the intercom outside the tunnel through an optical fiber transmitter, a relay station and an antenna; the method comprises the steps that after signals sequentially pass through an antenna, a relay station, an optical fiber transmitter and a plurality of signal amplifiers, the signals are sent into a tunnel through a plurality of wireless signal transceivers, and the signals sent by the wireless signal transceivers closest to the wireless signal transceivers are received by the interphone in the tunnel; the plurality of wireless signal transceivers can cover the whole tunnel, so that communication signals between the interphone in the tunnel and the interphone outside the tunnel are only transmitted in a short distance in the tunnel, the signals are effectively prevented from being influenced by the environment in the tunnel, and stable transmission of the signals inside and outside the tunnel is further ensured.
On the basis of the technical scheme, the utility model can be improved as follows.
Further, the main optical cable adopts an armored optical cable.
Further, the main optical cable adopts a 12-core or 24-core optical cable.
Further, the optical fiber cable further comprises a far-end ODF distribution frame and a near-end ODF distribution frame, and two ends of the main optical cable are respectively welded into the wiring trays of the far-end ODF distribution frame and the near-end ODF distribution frame.
Further, the optical fiber cable patch system further comprises a standby optical cable arranged between the optical fiber transmitter and the relay station, wherein two ends of the standby optical cable are respectively welded into the wiring trays of the far-end ODF distribution frame and the near-end ODF distribution frame, and the trunk optical cable and the standby optical cable are routed differently.
Further, signal soft switching is adopted between the interphone and the plurality of wireless signal transceivers in the tunnel.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
In the drawings, the list of components represented by the various numbers is as follows:
1. An intercom in the tunnel; 2. a wireless signal transceiver; 3. a signal amplifier; 4. an optical fiber transmitter; 5. a relay station; 6. an antenna; 7. an intercom outside the tunnel; 8. a communication cable; 9. a trunk optical cable; 10. a remote ODF distribution frame; 11. a near end ODF distribution frame; 12. and (5) a standby optical cable.
Detailed Description
The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.
Embodiment 1, as shown in fig. 1, a tunnel communication intercom device includes an intercom 1 in a tunnel, a plurality of wireless signal transceivers 2, a plurality of signal amplifiers 3, an optical fiber transmitter 4, a relay station 5, an antenna 6, and an intercom 7 outside the tunnel;
each wireless signal transceiver 2 is respectively connected with one signal amplifier 3 through a communication cable 8, a plurality of signal amplifiers 3 are respectively connected with different ports of an optical fiber transmitter 4 through the communication cable 8, the optical fiber transmitter 4 is connected with a relay station 5 through a trunk optical cable 9, and the relay station 5 is connected with an antenna 6;
The wireless signal transceivers 2 are paved in the tunnel at intervals along the length direction of the tunnel, the signal amplifiers 3 are paved outside the tunnel at intervals corresponding to the wireless signal transceivers 2 along the length direction of the tunnel, and the optical fiber transmitter 4, the relay 5, the antenna 6 and the interphone 7 outside the tunnel are uniformly distributed outside the tunnel.
The method comprises the steps that signal connection is established between an intercom 1 in a tunnel and a wireless signal transceiver 2 closest to the intercom 1 in the tunnel, the intercom 1 in the tunnel transmits signals to the wireless signal transceiver 2 closest to the intercom, and the wireless signal transceiver 2 amplifies the signals through a corresponding signal amplifier 3 and then sequentially transmits the signals to an intercom 7 outside the tunnel through an optical fiber transmitter 4, a relay 5 and an antenna 6; the signal is sequentially transmitted into the tunnel through the plurality of wireless signal transceivers 2 after passing through the antenna 6, the relay station 5, the optical fiber transmitter 4 and the plurality of signal amplifiers 3 by the intercom 7 outside the tunnel, and the intercom 1 in the tunnel receives the signal transmitted by the wireless signal transceiver 2 closest to the intercom 1 in the tunnel; the plurality of wireless signal transceivers 2 can cover the whole tunnel, so that communication signals between the interphone 1 in the tunnel and the interphone 7 outside the tunnel are only transmitted in a short distance in the tunnel, the signals are effectively prevented from being influenced by the environment in the tunnel, and stable transmission of the signals inside and outside the tunnel is further ensured.
Example 2, as shown in fig. 1, this example is a further improvement over example 1, which is specifically as follows:
The trunk optical cable 9 adopts an armored optical cable. Can prevent damage to the optical cable caused by biting of the mice.
Example 3, as shown in fig. 1, this example is a further improvement over example 1, which is specifically as follows:
The trunk optical cable 9 adopts a 12-core or 24-core optical cable. More standby fiber cores are provided, so that the standby fiber cores can be replaced when the fiber core loss is large, and the stability of signals is ensured.
Example 4, as shown in fig. 1, this example is a further improvement over example 3, which is specifically as follows:
And the optical fiber cable further comprises a far-end ODF distribution frame 10 and a near-end ODF distribution frame 11, and two ends of the main optical cable 9 are respectively fused into the wiring trays of the far-end ODF distribution frame 10 and the near-end ODF distribution frame 11. The optical cable between the far-end ODF distribution frame 10 and the near-end ODF distribution frame 10 is welded in advance in the splice tray, so that the fiber can be quickly jumped when the fiber core is replaced.
Example 5, as shown in fig. 1, this example is a further improvement over example 4, which is specifically as follows:
The optical fiber cable also comprises a standby optical cable 12 arranged between the optical fiber transmitter 4 and the relay station 5, wherein two ends of the standby optical cable 12 are respectively fused into the wiring trays of the far-end ODF distribution frame 10 and the near-end ODF distribution frame 11, and the trunk optical cable 9 and the standby optical cable 12 are routed differently. The spare cable 12 plays an emergency role, and the possibility of simultaneous failure of the main optical cable 9 and the spare cable 12 can be greatly reduced due to the arrangement of different routes.
Example 6, as shown in fig. 1, this example is a further improvement over example 1, which is specifically as follows:
The inter-intercom 1 and the plurality of wireless signal transceivers 2 in the tunnel adopt signal soft switching. The intercom 1 in the tunnel keeps continuous with the signal coverage area of the original wireless signal transceiver 2 when entering the signal coverage area of the next wireless signal transceiver 2 and establishing channel connection with the signal coverage area, and the intercom 1 in the tunnel is disconnected with the original wireless signal transceiver 2 until the transmission quality of the signal coverage area of the next wireless signal transceiver 2 is measured to meet the standard requirement, so that real-time communication between the intercom 1 in the tunnel and the intercom 7 outside the tunnel is effectively ensured.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.
Claims (6)
1. The tunnel communication intercom device is characterized by comprising an intercom (1) in a tunnel, a plurality of wireless signal transceivers (2), a plurality of signal amplifiers (3), an optical fiber transmitter (4), a relay station (5), an antenna (6) and an intercom (7) outside the tunnel;
Each wireless signal transceiver (2) is connected with one signal amplifier (3) through a communication cable (8), a plurality of signal amplifiers (3) are connected with different ports of the optical fiber transmitter (4) through the communication cables (8), the optical fiber transmitter (4) is connected with the relay station (5) through a trunk optical cable (9), and the relay station (5) is connected with the antenna (6);
The wireless signal transceivers (2) are paved in the tunnel at intervals along the length direction of the tunnel, the signal amplifiers (3) are paved outside the tunnel at intervals along the length direction of the tunnel corresponding to the wireless signal transceivers (2), and the optical fiber transmitter (4), the relay station (5), the antenna (6) and the interphone (7) outside the tunnel are uniformly distributed outside the tunnel.
2. A tunnel communication intercom device as in claim 1 wherein said backbone cable (9) is an armored cable.
3. A tunnel communication intercom device as in claim 1 wherein said backbone cable (9) is a 12-core or 24-core cable.
4. A tunnel communication intercom device according to claim 3, further comprising a far-end ODF distribution frame (10) and a near-end ODF distribution frame (11), wherein two ends of said trunk optical cable (9) are respectively fused into the terminal trays of said far-end ODF distribution frame (10) and said near-end ODF distribution frame (11).
5. The tunnel communication intercom set forth in claim 4, further comprising a spare optical cable (12) disposed between said optical fiber transmitter (4) and said repeater (5), both ends of said spare optical cable (12) being respectively fused into the splice trays of said far-end ODF distribution frame (10) and said near-end ODF distribution frame (11), said trunk optical cable (9) and said spare optical cable (12) being routed differently.
6. A tunnel communication intercom device according to claim 1, wherein a signal soft handoff is employed between the intercom (1) and a plurality of said wireless signal transceivers (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323029364.6U CN221042853U (en) | 2023-11-09 | 2023-11-09 | Tunnel communication intercom device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323029364.6U CN221042853U (en) | 2023-11-09 | 2023-11-09 | Tunnel communication intercom device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221042853U true CN221042853U (en) | 2024-05-28 |
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ID=91182589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323029364.6U Active CN221042853U (en) | 2023-11-09 | 2023-11-09 | Tunnel communication intercom device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221042853U (en) |
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2023
- 2023-11-09 CN CN202323029364.6U patent/CN221042853U/en active Active
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