Optical fiber detection case based on functional domain vertical layering

Abstract

An optical fiber detection case based on functional domain vertical layering is characterized in that a case body is in a cuboid shape, a top panel is detachable, a front panel is provided with a light source button, a power button and a case handle, and a rear panel is provided with a jack and a fan heat dissipation port. The interior of the case is divided into a first connecting area, a second connecting area, a third connecting area and a fourth connecting area through a first layering partition plate and a second layering partition plate. The second connection area is used for placing transmitting, modulating, coupling and detecting optical signal devices and optical fiber connectors; and the third connection area is used for placing an amplifying and detecting optical signal device. According to the utility model, through reasonable functional area division and structural design, the technical problems of electromagnetic interference, insufficient portability, poor external field adaptability and the like of a traditional chassis are effectively solved, and a novel hardware carrier is provided for engineering application of a distributed optical fiber sensing system.

Description

Technical Field

[0001] This utility model belongs to the field of fiber optic sensing technology, specifically relating to a fiber optic detection chassis based on vertical layering of functional domains. Background Technology

[0002] High signal-to-noise ratio (SNR) distributed fiber optic detection chassis is a chassis design for high-performance distributed fiber optic acoustic sensing systems, widely used in perimeter security, smart grids, and marine acoustic target detection. In traditional chassis architectures, the spatial coupling effect between electrical signal processing modules and optical devices easily leads to the propagation of electrical noise into the optical signal link. Especially in high-frequency electromagnetic environments, parasitic parameter coupling between devices can significantly reduce the SNR of the detected signal. Furthermore, the stacked architecture of traditional chassis often employs a mixed layout of functional modules, failing to form a hierarchical isolation system based on signal characteristics. This results in low space utilization, poor electromagnetic interference resistance, and impacts system stability and lifespan. In addition, detection equipment for field testing needs to meet portability and environmental adaptability requirements, but the stacked structure design of traditional chassis leads to low space utilization, and its overall size and weight are difficult to adapt to the rapid deployment, stable operation, and portability requirements under complex field conditions. Meanwhile, in order to meet the requirements for detecting weak signals in field tests, it is necessary to improve the detection signal-to-noise ratio of the distributed fiber optic acoustic wave sensing system, which requires the application of more complex system structure design, and also puts forward higher requirements for the rational utilization of chassis space. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides a high signal-to-noise ratio distributed optical fiber detection chassis to solve the technical problems mentioned in the background art, such as poor anti-electromagnetic interference capability, low signal-to-noise ratio, and low space utilization.

[0004] To achieve the aforementioned objectives of this utility model, the technical solution provided in this application is as follows:

[0005] A fiber optic detection chassis based on vertical functional domain hierarchical design, comprising electrical and optical components, characterized in that the main body of the chassis is rectangular, the top panel is removable, the front panel is equipped with a light source button, a power button, and a chassis handle, and the rear panel is equipped with a connector and a fan vent. The interior of the chassis is divided into two sections by a first layered partition and a second layered partition:

[0006] The first connection area is used to place electrical components;

[0007] The second connection area is used to place optical signal transmitting, modulating, coupling, and probing devices and fiber optic connectors;

[0008] The third connection area is used to place devices for amplifying and detecting optical signals.

[0009] Furthermore, the connector includes a flange port (4), an RF signal port (5), a USB interface (6), an RS232 interface (8), a power interface (9), and a switch (10).

[0010] Furthermore, the bottom panel (18) of the chassis is provided with anti-collision protrusions (19) at the four corners.

[0011] The fiber optic detection chassis based on vertical layering of functional domains is characterized in that the optical devices of the second connection area (12) and the optical devices of the third connection area (13) are connected by optical fiber connectors, and the electrical devices of the first connection area (11) supply power to the optical devices of the second connection area (12) and the third connection area (13).

[0012] Furthermore, the fan heat dissipation vent (7) is located below the rear panel, forming an independent heat dissipation system with the internal air duct.

[0013] Furthermore, the light source button (2) and the power button (3) are provided with fluorescent markings on their surfaces.

[0014] In one embodiment, the first connection area and the second connection area of ​​the chassis are connected by a layered partition.

[0015] In one embodiment, the second connection area and the third connection area of ​​the chassis are connected by a layered partition.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] By designing the bottom layer of electrical components and combining the independent cavities of the middle and top layers of optical components to physically isolate the optical path, a three-level layered attenuation barrier for electro-optical-optical signals is constructed. This effectively suppresses crosstalk of electrical noise to the optical signal link and solves the signal crosstalk problem in strong electromagnetic environments.

[0018] The chassis in this application is based on a 3U standardized three-dimensional gradient layout. While maintaining the integrity of the core functional modules, it reduces the chassis volume and weight, significantly improving the chassis's portability and deployment efficiency in field testing.

[0019] The chassis described in this application is suitable for high signal-to-noise ratio distributed acoustic wave detection requirements, providing hardware support for high-precision monitoring of distributed fiber optic sensing systems in complex outdoor environments. Attached Figure Description

[0020] Figure 1 This is a front structural perspective view of the fiber optic detection chassis based on vertical functional domain layering in the embodiments of this application;

[0021] Figure 2This is a perspective view of the rear structure of the fiber optic detection chassis based on vertical functional domain layering in the embodiments of this application;

[0022] Figure 3 This is a perspective view of the left side structure of the fiber optic detection chassis based on vertical functional domain layering in this embodiment of the application;

[0023] Figure 4 This is a rear-view perspective view of the fiber optic detection chassis based on vertical functional domain layering in the embodiments of this application;

[0024] Figure 5 This is a bottom structural diagram of the fiber optic detection chassis based on vertical functional domain layering in the embodiments of this application;

[0025] Attached reference numerals: 1-Top panel of chassis, 2-Light source button, 3-Power button, 4-Flange port, 5-RF signal port, 6-USB interface, 7-Fan vent, 8-RS232 interface, 9-Power supply, 10-Switch, 11-First connection area, 12-Second connection area, 13-Third connection area, 14-Layer partition one, 15-Layer partition two, 16-Chassis handle, 17-Chassis body, 18-Bottom panel of chassis, 19-Anti-collision protrusion. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the present utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.

[0027] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a” and “described” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0028] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms and should not be construed as indicating or implying relative importance. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information.

[0029] In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "set" and "connection" should be interpreted broadly. For example, they can refer to mechanical connection or internal connection between two components. They can be directly connected or indirectly connected through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0030] To better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the specific embodiments shown in the accompanying drawings.

[0031] like Figures 1 to 5 As shown, this example provides a fiber optic detection chassis based on vertical functional domain layering. The chassis body 17 is a 3U standard rack-mount structure, consisting of a top panel 1, a bottom panel 18, and surrounding metal side panels forming a closed cavity. The light source button 2 and power button 3 are located side-by-side on the upper right corner of the front panel, using metal buttons with fluorescent markings printed on their surfaces. The rear panel has numerous ports. A flange port 4 is located on the far left for connecting external sensing fibers. To the right of the flange port 4 are four symmetrically distributed RF signal ports 5. To the right of the RF signal ports 5 is a USB interface 6. To the right of the USB interface 6 is an RS232 interface 8. To the right of the RS232 interface 8 are a power interface 9 and a switch 10. A fan vent 7 is located at the bottom of the rear panel. Anti-collision protrusions 19 are fixed at the four corners of the bottom panel 18. The protrusions have rounded rectangular cross-sections to effectively buffer external impacts and protect internal precision components. The chassis shell, secured with bolts, can withstand dust and splashing liquids. The main body of the chassis 17 is equipped with chassis handles 16 on both sides. They are made of aluminum alloy and designed with anti-slip texture to meet the needs of portable transportation in the field.

[0032] The interior of the chassis is divided into three functional areas by two horizontal metal partitions 14 and 15. From bottom to top, they are the bottom first connection area 11, on which electrical components are installed; the middle second connection area 12; and the top third connection area 13, on which optical components are installed. Each area is physically isolated and electromagnetically shielded by the partitions.

[0033] When the chassis is connected to the fiber optic system under test, power supply 9 supplies power to the chassis. After the power is turned on, switch 10 controls the chassis to start and stop, power button 3 controls the power on and off of the module power supply, and light source button 2 controls the laser's on / off state. USB interface 6 and RS232 interface 8 allow for parameter settings of the modules inside the chassis, and RF signal interface 5 enables the detection connection of system signals and the signal modulation connection of the modules inside the chassis.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A fiber optic detection chassis based on functional domain vertical layering, comprising a chassis and electrical and optical components housed within the chassis, characterized in that, The chassis body is rectangular in shape, with a removable top panel. The front panel has a light source button, a power button, and a chassis handle. The rear panel has connectors and fan vents. The interior of the chassis is divided into two sections by two partitions: The first connection area is used to place electrical components; The second connection area is used to place optical signal transmitting, modulating, coupling, and probing devices and fiber optic connectors; The third connection area is used to place devices for amplifying and detecting optical signals.

2. The functional domain vertically layered optical fiber detection cabinet according to claim 1, wherein, The connectors include a flange port (4), an RF signal port (5), a USB interface (6), an RS232 interface (8), a power interface (9), and a switch (10). 3.The functional domain vertical layering based optical fiber detection cabinet according to claim 1, characterized in that, The bottom panel (18) of the chassis is provided with anti-collision protrusions (19) at the four corners.

4. The functional domain vertically layered optical fiber probe case according to claim 1, wherein, The electrical devices in the first connection region (11) supply power to the optical devices in the second connection region (12) and the third connection region (13).

5. The fiber optic detection chassis based on vertical functional domain layering according to claim 1, characterized in that, The optical devices in the second connection area (12) and the optical devices in the third connection area (13) are connected by optical fiber connectors.

6. The functional domain vertically layered optical fiber probe case according to claim 1, wherein, The fan vent (7) is located below the rear panel and forms an independent heat dissipation system with the internal air duct.

7. The functional domain vertically layered optical fiber probe case according to claim 1, wherein, The light source button (2) and power button (3) are provided with fluorescent markings.

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