CN214540960U

CN214540960U - Node position marking device for distributed vibration optical fiber detection system

Info

Publication number: CN214540960U
Application number: CN202120993337.2U
Authority: CN
Inventors: 满中桦
Original assignee: Shandong Feitian Photoelectric Technology Co ltd
Current assignee: Shandong Feitian Photoelectric Technology Co ltd
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2021-10-29
Anticipated expiration: 2031-05-11

Abstract

The utility model discloses a distributing type vibration node position mark device for optic fibre detecting system, which comprises an outer shell, be equipped with the mounting panel in the shell, the mounting panel upper end is equipped with vibrating device, IP the control unit and power from a left side right side in proper order, mounting panel downside bilateral symmetry all is equipped with the backup pad, the equal fixed connection shell inner wall of one end that the backup pad was kept away from each other, the equal cartridge of mounting panel lower extreme left and right sides has the locating plate, and corresponds the locating plate upper end on the mounting panel and seted up the constant head tank, and the shell front end is equipped with the access door, the shell downside is equipped with the optical cable body, and optical cable body upside is equipped with solid fixed splint. The utility model discloses a but optical fiber signal remote control's vibrator is at distributing type vibration optic fibre video monitoring or key node position, adheres to on the distributing type vibration optic fibre, makes its distributing type vibration optical fiber signal collector distinguish mark key node position through the control vibration to the realization is protected from the fire to corresponding video monitoring or defence area linkage.

Description

Node position marking device for distributed vibration optical fiber detection system

Technical Field

The utility model relates to an optical fiber technology field especially relates to a distributed vibration node position marking device for optical fiber detection system.

Background

The development and cost control of the distributed vibration optical fiber technology are followed. More and more security markets are applied, and the distributed vibration optical fiber has the characteristics of long detection distance, high positioning precision, low installation and construction cost, no magnetic field environment interference and the like.

However, the optical fiber signals transmitted by the distributed vibration optical fibers from the signal collector can generate positioning signals as long as the optical fibers vibrate, in a peripheral security environment, the distributed vibration optical fibers do not need vibration monitoring along all the optical fibers, and the distributed vibration optical fibers need linkage video monitoring, so that artificial vibration marking is needed to mark vibration positions.

Due to the fact that the distributed vibration optical fiber is long, the vibration optical fiber needs to be knocked one by one at a vibration alarm perimeter required by debugging and a video monitoring point needing to be linked, each key node is marked, the method is time-consuming and labor-consuming, even the communication problem of debugging personnel can not be realized in some special scenes, for example underground pipe galleries, mines, non-signal coverage areas and the like, and therefore on-site vibration marking personnel can not communicate with debugging personnel in a control center. Therefore, the research and development of the invention change the situation that the original personnel must go to the field for debugging.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem in the prior art, and the node position marking device for distributed vibration optical fiber detection system that provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a node position marking device for a distributed vibration optical fiber detection system comprises a shell, wherein a mounting plate is arranged in the shell, a vibration device, an IP control unit and a power supply are sequentially arranged at the upper end of the mounting plate from left to right, support plates are symmetrically arranged at the left and right sides of the lower side of the mounting plate, one ends, far away from each other, of the support plates are fixedly connected with the inner wall of the shell, positioning plates are respectively inserted at the left and right sides of the lower end of the mounting plate, positioning grooves are formed in the mounting plate corresponding to the upper ends of the positioning plates, an access door is arranged at the front end of the shell, an optical cable body is arranged at the lower side of the shell, a fixed clamping plate is arranged at the upper side of the optical cable body, a connecting plate is arranged at the front end of the fixed clamping plate, the shell is fixedly connected with the upper end of the connecting plate, a movable clamping plate is arranged at the lower side of the optical cable body, the lower end of the fixed clamping plate is mutually attached to the movable clamping plate, a screw rod penetrates through the fixed clamping plate and the movable clamping plate is in threaded connection with the movable clamping plate, the upper end of the screw is provided with a first bevel gear, the first bevel gear is meshed with a second bevel gear, and one end, close to each other, of the second bevel gear is provided with a connecting rod.

Preferably, the left side and the right side of the lower end of the mounting plate are provided with a first sliding groove corresponding to the supporting plate, and the mounting plate is connected with the supporting plate in a sliding manner.

Preferably, a rotating shaft penetrates through the positioning plate, a bearing is arranged at the upper end of the rotating shaft, and the upper end of the bearing is fixedly connected to the supporting plate.

Preferably, the rotating shaft is sleeved with a spring, and the lower end of the positioning plate is provided with a pull rod.

Preferably, the rear end of the connecting plate is provided with a second sliding groove corresponding to the movable clamping plate, and the movable clamping plate is in sliding connection with the connecting plate.

Preferably, all be equipped with the axle sleeve on screw rod and the connecting rod, the axle sleeve is fixed mounting respectively on connecting plate and shell, and is equipped with the knob on the connecting rod middle part.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a but optical fiber signal remote control's vibrator is at distributing type vibration optic fibre video monitoring or key node position, adheres to on the distributing type vibration optic fibre, makes its distributing type vibration optical fiber signal collector distinguish mark key node position through the control vibration to the realization is protected from the fire to corresponding video monitoring or defence area linkage.

2. The utility model discloses a pulling pull rod drives the locating plate and shifts out from the constant head tank downwards to compression spring rotates the pull rod again and drives locating plate and pivot rotation, makes the locating plate rotate the left and right sides of mounting panel, can directly take the mounting panel out from the shell through the spout one that sets up this moment, and the dismantlement of the mounting panel of being convenient for is conveniently overhauld vibrating device, IP the control unit and power.

3. The utility model discloses a rotate the knob and drive connecting rod, bevel gear two, bevel gear and screw rod and rotate, the screw rod drives movable splint downstream, makes movable splint and solid fixed splint separation, the dismantlement and the fixed of the shell of being convenient for, easy operation, convenient to use has improved the installation effectiveness of shell.

Drawings

Fig. 1 is the utility model provides a distributed vibration optical fiber detection system uses node position marking device's schematic structure diagram.

Fig. 2 is the utility model provides a structural schematic diagram of a department among node position mark device for distributed vibration optical fiber detection system.

Fig. 3 is the utility model provides a distributed vibration optical fiber detection system is with side-looking at schematic structure diagram of optical cable body among node position mark device.

Fig. 4 is a schematic view of a three-dimensional structure of a shell of the node position marking device for the distributed vibration optical fiber detection system.

In the figure: 1. a housing; 2. mounting a plate; 4. a vibrating device; 5. an IP control unit; 6. a power source; 7. a support plate; 8. a first sliding chute; 9. positioning a plate; 10. positioning a groove; 11. a rotating shaft; 12. a bearing; 13. a spring; 14. a pull rod; 15. an access door; 16. an optical cable body; 17. fixing the clamping plate; 18. a connecting plate; 19. a movable splint; 20. a second chute; 21. a screw; 22. a first bevel gear; 23. a second bevel gear; 24. a connecting rod; 25. a knob; 26. and a shaft sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example one

Referring to fig. 1-4, a node position marking device for a distributed vibration optical fiber detection system comprises a housing 1, a mounting plate 2 is arranged in the housing 1, a vibration device 4, an IP control unit 5 and a power supply 6 are sequentially arranged on the upper end of the mounting plate 2 from left to right, support plates 7 are symmetrically arranged on the left and right sides of the lower side of the mounting plate 2, one ends of the support plates 7 away from each other are fixedly connected with the inner wall of the housing 1, a first chute 8 is arranged on the left and right sides of the lower end of the mounting plate 2 corresponding to the support plates 7, the mounting plate 2 is slidably connected with the support plates 7, positioning plates 9 are respectively inserted on the left and right sides of the lower end of the mounting plate 2 corresponding to the upper ends of the positioning plates 9, a rotating shaft 11 penetrates through the positioning plates 9, a bearing 12 is arranged on the upper end of the rotating shaft 11, the upper end of the bearing 12 is fixedly connected with the support plates 7, a spring 13 is sleeved on the rotating shaft 11, and a pull rod 14 is arranged at the lower end of the

positioning plate

9, 1 front end of shell is equipped with access door 15, open access door 15, pulling pull rod 14 downwards drives locating plate 9 and shifts out from constant head tank 10 in, and compression spring 13, it drives locating plate 9 and pivot 11 rotation to rotate pull rod 14 again, make locating plate 9 rotate the left and right sides of mounting panel 2, can directly take mounting panel 2 out from shell 1 through a spout 8 that sets up this moment, the dismantlement of mounting panel 2 of being convenient for, the convenience is overhauld vibrating device 4, IP the control unit 5 and power 6.

Example two

Referring to fig. 1-4, in this embodiment, basically the same as the first embodiment, it is more preferable that an optical cable body 16 is disposed on a lower side of a housing 1, a fixed clamp 17 is disposed on an upper side of the optical cable body 16, a connecting plate 18 is disposed at a front end of the fixed clamp 17, the housing 1 is fixedly connected to an upper end of the connecting plate 18, a movable clamp 19 is disposed on a lower side of the optical cable body 16, a lower end of the fixed clamp 17 is attached to the movable clamp 19, a screw 21 penetrates through the fixed clamp 17 and the movable clamp 19, the screw 21 is in threaded connection with the movable clamp 19, a second sliding slot 20 is disposed at a rear end of the connecting plate 18 corresponding to the movable clamp 19, the movable clamp 19 is in sliding connection with the connecting plate 18, a first bevel gear 22 is disposed at an upper end of the screw 21, a second bevel gear 23 is engaged with the first bevel gear 22, a connecting rod 24 is disposed at an end of the second bevel gear 23, shaft sleeves 26 are disposed on the screw 21 and the connecting rod 24, the shaft sleeves 26 are respectively fixedly mounted on the connecting plate 18 and the housing 1, and the knob 25 is arranged on the middle part of the connecting rod 24, when the device is used, the knob 25 is rotated to drive the connecting rod 24, the bevel gear II 23, the bevel gear I22 and the screw rod 21 to rotate, and the screw rod 21 drives the movable clamping plate 19 to move downwards, so that the movable clamping plate 19 is separated from the fixed clamping plate 17, the device is convenient to disassemble and fix the shell 1, the operation is simple, the use is convenient, and the installation efficiency of the shell 1 is improved.

The working principle is as follows: the utility model discloses a phase-sensitive optical time domain reflection-type (phi-OTDR): in a phi-OTDR system, a light source applied by a vibration sensor has a narrow enough line width and high coherence, scattered light returned from different parts of an optical fiber interferes, the phi-OTDR can detect weak signals which cannot be detected by the traditional OTDR system, a narrow line width light pulse enters the optical fiber through a coupler, backward Rayleigh scattered light is detected by a detector and is sent to a signal processing device after being collected, a curve received by the detector is a time-light intensity graph, when vibration interference exists at a certain moment, light intensity information of a detected corresponding position is different from light intensity detected when no disturbance exists at a previous moment, light intensity detected at other positions is the same and does not change, so that light intensity difference generated by optical fiber vibration can be detected by subtracting a backward Rayleigh scattered signal of the current phi-OTDR and a backward scattered signal at the previous moment, the vibration position is positioned by time, the phi-OTDR not only has sharp perception to external weak signals, but also can realize multi-point positioning in principle, a laser with narrow line width is needed in the system, which is a basic condition that the system can respond to optical phase change, and in order to avoid the phi-OTDR backscattering curve from shaking as much as possible, the laser is required to have extremely small frequency drift;

the IP control unit is connected with a signal collector of the distributed vibration optical fiber detection system through an optical fiber, the IP control unit is provided with the signal collector to control the vibrators, the IP address of the IP control unit can be modified to distinguish each vibrator, after the IP control unit receives a vibration signal of the signal collector, the IP control unit controls the vibration device to start to vibrate, each IP controller unit can be determined according to the number of key nodes (video monitoring position, defense area initial point and the like), the vibrators are controlled by a TCP/IP network, the vibration device adopts an FC optical fiber interface and adopts the same optical cable as the distributed vibration optical fiber, one fiber in the optical cable is adopted by the distributed vibration optical fiber to be used as vibration sensing, other fiber cores can be used for controlling the signal of the vibrators, and the mechanical vibration device is attached to the optical cable at the key nodes (video monitoring position, defense area initial point and the like) when the distributed vibration optical fiber is installed, one fiber of the optical cable is cut off and welded with an FC optical fiber jumper, the optical fiber jumper is inserted into a mechanical vibration device, other key nodes are processed according to the method, but a distributed vibration optical fiber and a used optical fiber core are not adopted, a vibrator is controlled by a distributed vibration optical fiber signal collector, the vibrator starts a vibration mode by sending a signal instruction, a vibration signal can determine the position of the optical fiber where the key node is located through the distributed vibration optical fiber signal collector, and a position needing to be protected or a video position is determined through software, the device does not need to manually beat the optical fiber according to the position of a protection area or a video monitoring point on a perimeter site to determine the relevant position, the tedious work that all key node positions of the perimeter site are knocked repeatedly by manpower and marks are determined again by a background is reduced, and the device is controlled by the device after the marks are used, whether the equipment normally works or not is self-checked.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A node position marking device for a distributed vibration optical fiber detection system comprises a shell (1) and is characterized in that a mounting plate (2) is arranged in the shell (1), a vibration device (4), an IP control unit (5) and a power supply (6) are sequentially arranged at the upper end of the mounting plate (2) from left to right, supporting plates (7) are symmetrically arranged on the left side and the right side of the lower side of the mounting plate (2), one ends, far away from each other, of the supporting plates (7) are fixedly connected with the inner wall of the shell (1), positioning plates (9) are respectively inserted into the left side and the right side of the lower end of the mounting plate (2), positioning grooves (10) are formed in the mounting plate (2) corresponding to the upper ends of the positioning plates (9), an access door (15) is arranged at the front end of the shell (1), an optical cable body (16) is arranged on the lower side of the shell (1), a fixing clamp plate (17) is arranged on the upper side of the optical cable body (16), and a connecting plate (18) is arranged at the front end of the fixing clamp plate (17), connecting plate (18) upper end fixed connection shell (1), optical cable body (16) downside is equipped with movable splint (19), and solid fixed splint (17) lower extreme and movable splint (19) laminate each other, it has screw rod (21) to run through on solid fixed splint (17) and the movable splint (19), screw rod (21) and movable splint (19) threaded connection, screw rod (21) upper end is equipped with bevel gear (22), and bevel gear (22) meshing has bevel gear two (23), and the one end that bevel gear two (23) are close to each other is equipped with connecting rod (24).

2. The node position marking device for the distributed vibration optical fiber detection system according to claim 1, wherein the left and right sides of the lower end of the mounting plate (2) are provided with a first sliding groove (8) corresponding to the support plate (7), and the mounting plate (2) is slidably connected with the support plate (7).

3. The node position marking device for the distributed vibration optical fiber detection system according to claim 1, wherein a rotating shaft (11) penetrates through the positioning plate (9), a bearing (12) is arranged at an upper end of the rotating shaft (11), and an upper end of the bearing (12) is fixedly connected to the supporting plate (7).

4. A node position marking device for a distributed vibration optical fiber detection system according to claim 3, wherein a spring (13) is sleeved on the rotating shaft (11), and a pull rod (14) is arranged at the lower end of the positioning plate (9).

5. The node position marking device for the distributed vibration optical fiber detection system according to claim 1, wherein a second sliding groove (20) is formed in the rear end of the connecting plate (18) corresponding to the movable clamping plate (19), and the movable clamping plate (19) is slidably connected with the connecting plate (18).

6. The node position marking device for the distributed vibration optical fiber detection system according to claim 1, wherein the screw rod (21) and the connecting rod (24) are respectively provided with a shaft sleeve (26), the shaft sleeves (26) are respectively and fixedly installed on the connecting plate (18) and the housing (1), and the middle part of the connecting rod (24) is provided with a knob (25).