Rock fall monitoring and early warning device based on distributed optical fiber sound wave sensing technology

Abstract

The utility model discloses a rockfall monitoring and early warning device based on a distributed optical fiber sound wave sensing technology, which comprises a box body, a first supporting assembly, a DAS (Data Acquisition System) demodulator, a second supporting assembly, a rockfall monitoring and early warning host and a blocking assembly, the first supporting assembly comprises a sliding rail arranged on the inner side of the box body, a storage plate connected to the sliding rail in a sliding mode, an inner threaded pipe arranged at the bottom of the storage plate, a base in threaded connection with the interior of the inner threaded pipe and a fastening rotary knob in threaded connection with the inner threaded pipe, the DAS demodulator is placed at the top end of the storage plate, and the second supporting assembly is arranged on the inner side of the box body. The rockfall monitoring and early warning host is placed at the top ends of the two supporting assemblies, and the blocking assembly is arranged on the outer side of the box body. According to the utility model, the first supporting assembly and the second supporting assembly are arranged, so that the DAS demodulator and the rockfall monitoring and early warning host can be conveniently taken out and maintained under the condition that the use of the device is not influenced, and the box body can be conveniently sealed through the blocking assembly.

Description

Technical Field

[0001] This utility model relates to the field of rockfall monitoring and early warning technology, specifically a rockfall monitoring and early warning device based on distributed fiber optic acoustic wave sensing technology. Background Technology

[0002] A rockfall monitoring and early warning device based on distributed fiber optic acoustic sensing (DAS) technology represents a significant technological breakthrough in geological disaster monitoring in recent years. This device utilizes optical fibers as sensors to continuously and in real-time monitor minute vibrations in mountains or slopes, enabling precise early warnings of geological hazards such as rockfalls. For ease of use, the main unit and DAS demodulator of the rockfall monitoring and early warning device are typically housed in a cabinet or enclosure. However, the weight of these components makes them difficult to remove for maintenance, presenting certain drawbacks. Therefore, we propose a rockfall monitoring and early warning device based on distributed fiber optic acoustic sensing technology. Summary of the Invention

[0003] Therefore, the purpose of this utility model is to provide a rockfall monitoring and early warning device based on distributed fiber optic acoustic wave sensing technology. By setting up a first support component and a second support component, the DAS demodulator and the rockfall monitoring and early warning host can be easily removed and repaired without affecting the use of the device. At the same time, the blocking component facilitates the sealing of the enclosure.

[0004] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0005] A rockfall monitoring and early warning device based on distributed fiber optic acoustic sensing technology includes:

[0006] Box;

[0007] The first support assembly includes a slide rail disposed inside the box, a shelf slidably connected to the slide rail, an internally threaded tube disposed at the bottom of the shelf, a base threadedly connected to the internally threaded tube, and a fastening knob threadedly connected to the internally threaded tube.

[0008] The DAS demodulator is placed on top of the shelf.

[0009] The second support assembly is arranged inside the housing;

[0010] The rockfall monitoring and early warning host is placed on top of the second support component;

[0011] The blocking assembly is installed on the outside of the housing.

[0012] As a preferred embodiment of the rockfall monitoring and early warning device based on distributed optical fiber acoustic wave sensing technology described in this utility model, the front end of the housing is hinged to a door, and a plurality of first heat dissipation holes are provided on the right side of the housing.

[0013] As a preferred embodiment of the rockfall monitoring and early warning device based on distributed optical fiber acoustic wave sensing technology described in this utility model, the placement plate is provided with an insertion hole and a second heat dissipation hole, and a plurality of the second heat dissipation holes are arranged at equal intervals. A slider is provided at the bottom of the placement plate, and the slider is slidably connected to the slide rail.

[0014] As a preferred embodiment of the rockfall monitoring and early warning device based on distributed optical fiber acoustic wave sensing technology described in this utility model, two of each of the slide rail, internal threaded tube, base, and fastening knob are provided, and both fastening knobs are T-shaped studs.

[0015] As a preferred embodiment of the rockfall monitoring and early warning device based on distributed optical fiber acoustic wave sensing technology described in this utility model, an optical fiber acoustic wave sensor is fixed to the rear side of the DAS demodulator.

[0016] In a preferred embodiment of the rockfall monitoring and early warning device based on distributed optical fiber acoustic wave sensing technology described in this utility model, the second support component has the same structure as the first support component.

[0017] As a preferred embodiment of the rockfall monitoring and early warning device based on distributed optical fiber acoustic wave sensing technology described in this utility model, a communication optical cable is fixed to the rear side of the rockfall monitoring and early warning host, and the rockfall monitoring and early warning host is electrically connected to the DAS demodulator.

[0018] As a preferred embodiment of the rockfall monitoring and early warning device based on distributed optical fiber acoustic wave sensing technology described in this utility model, the blocking component includes a baffle hinged to the side of the box, a first fixing ring arranged on the top of the baffle, a thin rope arranged on the first fixing ring, and a second fixing ring arranged on the right side of the box.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: the shelf can slide on the slide rail. When the shelf moves outward, it can drive the DAS demodulator or rockfall monitoring and early warning host to detach from the housing. Due to the obstruction of the slider, the shelf cannot detach from the slide rail. Then the base can rotate. After rotating to a suitable position, tighten the fastening knob. Thus, the shelf is supported by the cooperation between the base and the internal threaded tube, so that the DAS demodulator or rockfall monitoring and early warning host can be taken out for maintenance. At the same time, the baffle can rotate. After rotating to a suitable angle, the thin rope can be fixed on the second fixing ring. On the one hand, it can adjust the heat dissipation efficiency of the first heat dissipation hole. On the other hand, the baffle can cover the first heat dissipation hole for sealing and dust prevention. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0021] Figure 1 A three-dimensional structural diagram of the rockfall monitoring and early warning device based on distributed optical fiber acoustic wave sensing technology of this utility model.

[0022] Figure 2 This is a three-dimensional structural diagram of the rockfall monitoring and early warning device based on distributed fiber optic acoustic wave sensing technology, from another perspective.

[0023] Figure 3 This utility model relates to a rockfall monitoring and early warning device based on distributed fiber optic acoustic sensing technology. Figure 1 3D structural diagram of the middle slide rail;

[0024] Figure 4 This utility model relates to a rockfall monitoring and early warning device based on distributed fiber optic acoustic sensing technology. Figure 1 A three-dimensional structural diagram of the central placement panel.

[0025] In the picture:

[0026] 100. Cabinet body; 101. Cabinet door; 102. First ventilation hole;

[0027] 200. First support assembly; 201. Slide rail; 202. Shelf; 2021. Insertion hole; 2022. Second heat dissipation hole; 2023. Slider; 203. Internally threaded tube; 204. Base; 205. Fastening knob;

[0028] 300. DAS demodulator; 301. Fiber optic acoustic sensor;

[0029] 400. Second support component;

[0030] 500. Rockfall monitoring and early warning host; 501. Communication optical cable;

[0031] 600, blocking assembly; 601, baffle; 602, first retaining ring; 603, thin rope; 604, second retaining ring. Detailed Implementation

[0032] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0033] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0034] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure will be partially enlarged, not at half scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0036] This utility model provides a rockfall monitoring and early warning device based on distributed fiber optic acoustic wave sensing technology. By setting a first support component and a second support component, the DAS demodulator and the rockfall monitoring and early warning host can be easily removed and repaired without affecting the use of the device. At the same time, the blocking component facilitates the sealing of the enclosure.

[0037] Figure 1-4 The diagram shown is an overall structural schematic of one embodiment of the rockfall monitoring and early warning device based on distributed fiber optic acoustic sensing technology of this utility model. Please refer to [link / reference]. Figure 1-4 The main body of the rockfall monitoring and early warning device based on distributed fiber optic acoustic wave sensing technology in this embodiment includes: a housing 100, a first support component 200, a DAS demodulator 300, a second support component 400, a rockfall monitoring and early warning host 500, and a blocking component 600.

[0038] Specifically, the front hinge of the box 100 is connected to the box door 101, and several first heat dissipation holes 102 are opened on the right side of the box 100. In use, the box 100 can be sealed through the box door 101, and heat dissipation can be facilitated through the first heat dissipation holes 102.

[0039] Specifically, the first support component 200 includes a slide rail 201 arranged inside the housing 100, a shelf 202 slidably connected to the slide rail 201, an internally threaded tube 203 arranged at the bottom of the shelf 202, a base 204 threadedly connected to the internally threaded tube 203, and a fastening knob 205 threadedly connected to the internally threaded tube 203. The shelf 202 has insertion holes 2021 and second heat dissipation holes 2022, with several second heat dissipation holes 2022 arranged at equal intervals. A slider 2023 is arranged at the bottom of the shelf 202. 3. It is slidably connected to the slide rail 201. There are two slide rails 201, two internal threaded tubes 203, two bases 204 and two fastening knobs 205. Both fastening knobs 205 are T-shaped studs. In use, the slide rail 201 and the slider 2023 can be used to pull the shelf 202 so that the DAS demodulator 300 can be driven out of the housing 100. After being detached, the base 204 can be rotated. After being rotated to a suitable position, the fastening knobs 205 are tightened so that the shelf 202 can be supported by the base 204. After being supported, it is convenient to maintain the DAS demodulator 300.

[0040] Specifically, the DAS demodulator 300 is placed on top of the shelf 202. A fiber optic acoustic wave sensor 301 is fixed to the rear of the DAS demodulator 300. In use, the fiber optic acoustic wave sensor 301 is the core sensor, utilizing the backscattering Rayleigh effect in the optical fiber to sense external vibrations. When a rock impacts or rolls, causing vibrations in the mountain, the refractive index, length, and other parameters of the optical fiber undergo slight changes, leading to changes in the phase or intensity of the backscattered Rayleigh light. The DAS demodulator 300 is the core device of the DAS system, responsible for converting the scattered light signal transmitted in the optical fiber into resolvable vibration / acoustic wave data.

[0041] Specifically, the second support component 400 is installed inside the housing 100. The second support component 400 has the same structure as the first support component 200. In use, the second support component 400 supports the rockfall monitoring and early warning host 500 so that the rockfall monitoring and early warning host 500 can be repaired and removed.

[0042] Specifically, the rockfall monitoring and early warning host 500 is placed on top of the second support component 400. A communication optical cable 501 is fixed to the rear of the rockfall monitoring and early warning host 500, and the rockfall monitoring and early warning host 500 is electrically connected to the DAS demodulator 300. In use, it can be connected to the monitoring center through the communication optical cable 501, so that the rockfall monitoring and early warning host 500 can remotely transmit signals to the monitoring center for monitoring and early warning.

[0043] Specifically, the blocking component 600 is installed on the outside of the housing 100. The blocking component 600 includes a baffle 601 hinged to the side of the housing 100, a first fixing ring 602 installed at the top of the baffle 601, a thin rope 603 installed on the first fixing ring 602, and a second fixing ring 604 installed on the right side of the housing 100. In use, the baffle 601 covers the first heat dissipation hole 102 for dust prevention and sealing. Then the baffle 601 can be rotated to a suitable angle, and the thin rope 603 can be fixed on the second fixing ring 604 to adjust the heat dissipation effect.

[0044] Combination Figures 1-4 In this embodiment of the rockfall monitoring and early warning device based on distributed fiber optic acoustic wave sensing technology, the user can insert their hand into the socket 2021 of the first support component 200, hold the shelf 202, and pull the shelf 202 outward until it can no longer be moved. At this time, the DAS demodulator 300 will detach from the housing 100. Then, rotate the base 204 downward until the base 204 contacts the ground. After contact, tighten the fastening knob 205, and the shelf 202 can be supported by the base 204. After support, the DAS demodulator 300 can be repaired. Similarly, the second support component 400 can be pulled outward until the rockfall monitoring and early warning host 500 is completely detached from the housing 100. Then, rotate the base 204 to contact the top of the DAS demodulator 300. After contact, the shelf 202 can be supported, and the rockfall monitoring and early warning host 500 can be repaired.

[0045] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A rockfall monitoring and early warning device based on distributed optical fiber acoustic wave sensing technology, characterized in that, include: Box (100); The first support assembly (200) includes a slide rail (201) arranged inside the box (100), a shelf (202) slidably connected to the slide rail (201), an internally threaded tube (203) arranged at the bottom of the shelf (202), a base (204) threadedly connected to the internally threaded tube (203), and a fastening knob (205) threadedly connected to the internally threaded tube (203). The DAS demodulator (300) is placed on top of the shelf (202); The second support assembly (400) is arranged on the inner side of the housing (100); The rockfall monitoring and early warning host (500) is placed on top of the second support component (400); A blocking assembly (600) is disposed on the outside of the housing (100). 2.The rockfall monitoring and early warning device based on distributed optical fiber acoustic sensing technology according to claim 1, characterized in that, The front end of the housing (100) is hinged to a door (101), and a number of first heat dissipation holes (102) are provided on the right side of the housing (100). 3.The rockfall monitoring and early warning device based on distributed optical fiber acoustic sensing technology according to claim 2, characterized in that, The shelf (202) is provided with an insertion hole (2021) and a second heat dissipation hole (2022), and a plurality of second heat dissipation holes (2022) are arranged at equal intervals. A slider (2023) is provided at the bottom of the shelf (202), and the slider (2023) is slidably connected to the slide rail (201). 4.The rockfall monitoring and early warning device based on distributed optical fiber acoustic sensing technology according to claim 3, characterized in that, The slide rail (201), the internal threaded tube (203), the base (204) and the fastening knob (205) are all provided in twos, and both fastening knobs (205) are T-shaped studs. 5.The rockfall monitoring and early warning device based on distributed optical fiber acoustic sensing technology according to claim 4, characterized in that, A fiber optic acoustic sensor (301) is fixed to the rear side of the DAS demodulator (300). 6.The rockfall monitoring and early warning device based on distributed optical fiber acoustic sensing technology according to claim 5, characterized in that, The second support component (400) has the same structure as the first support component (200). 7.The rockfall monitoring and early warning device based on distributed optical fiber acoustic sensing technology according to claim 6, characterized in that, The rockfall monitoring and early warning host (500) is fixed with a communication optical cable (501) on the rear side, and the rockfall monitoring and early warning host (500) is electrically connected to the DAS demodulator (300). 8.The rockfall monitoring and early warning device based on distributed optical fiber acoustic sensing technology according to claim 7, characterized in that, The blocking assembly (600) includes a baffle (601) hinged to the side of the housing (100), a first fixing ring (602) disposed at the top of the baffle (601), a thin rope (603) disposed on the first fixing ring (602), and a second fixing ring (604) disposed on the right side of the housing (100).

Images