Optical fiber sensing type perimeter security device

Abstract

The utility model discloses an optical fiber sensing type perimeter security device which comprises a plurality of optical fiber sensing frames, each optical fiber sensing frame is of a right-angle structure, one side face of each optical fiber sensing frame is provided with a laser transmitter, and the other side face of each optical fiber sensing frame is provided with a laser receiver. The other side face of each optical fiber sensing frame is provided with an optical detector, and the optical detectors and the laser emitters between every two adjacent optical fiber sensing frames are correspondingly arranged. Detection is carried out through linkage of optical fiber vibration sensing and the artificial intelligence camera, an optical fiber circuit can be buried underground, can be arranged on the top of an enclosing wall and can also be arranged above a diamond net, when a person intrudes into the periphery, vibration can be sensed as long as the human body touches the optical fiber circuit, and the detection is convenient. The artificial intelligence camera rotates to a manual touch position and carries out shooting, light-vision linkage is realized, the use number of cameras is effectively reduced, the use cost of the cameras is reduced, and the monitoring precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of perimeter security, in particular to an optical fiber sensing perimeter security device. Background Art

[0002] Perimeter security devices are security devices used to monitor and protect the boundaries of a specific area. They are typically mounted on fences, walls, or other barriers to prevent unauthorized persons from entering or leaving the area. Perimeter security devices can use a variety of technologies, including but not limited to:

[0003] Optical Sensors: These devices use infrared or lasers to detect intruders. When the barrier is crossed or attempted to be crossed, the sensor sounds an alarm.

[0004] Shock sensors: These sensors are installed on the fence and detect vibrations caused by people or animals touching or climbing on it. Once abnormal vibrations are detected, the sensor triggers the alarm system.

[0005] Electric Fence: This is a system that sends electrical impulses to the fence through wires. When someone touches the fence, the system will sound an alarm.

[0006] Microwave radar detectors: These devices transmit microwave signals and receive the signals reflected back. If the microwave beam is interrupted or the reflected signal is abnormal, the detector will trigger an alarm.

[0007] Vibration Fiber: This technology uses fiber optic cables to detect cutting, digging or other types of physical disturbances.

[0008] Video surveillance systems: Cameras can monitor the perimeter in real time and identify potential threats through motion detection or abnormal behavior analysis.

[0009] Sound recognition systems: These systems can identify specific sound patterns, such as breaking glass, shouting, or other unusual noises, to determine whether a security incident has occurred.

[0010] Fiber optic sensor perimeter security device is an advanced security system based on fiber optic sensor technology. It uses the characteristics of optical fiber to detect and identify various physical disturbances, such as vibration, pressure changes, temperature changes, etc. The following are some of the main features of fiber optic sensor perimeter security device:

[0011] Highly sensitive: Fiber optics are very sensitive to small physical disturbances, so intrusion attempts, such as the touching or cutting of a fence, can be accurately detected.

[0012] Strong anti-interference ability: Optical fiber is not affected by electromagnetic interference, so it can maintain stable operation even in harsh electromagnetic environments.

[0013] Good concealment: Optical fiber is small and non-conductive, making it difficult to be discovered, which increases the concealment of the system.

[0014] Long-distance monitoring: A single optical fiber can be up to several kilometers long, enabling long-distance continuous monitoring, which is particularly suitable for perimeter protection of large sites.

[0015] Multi-point positioning: By analyzing the time delay and strength of the signal, the location where the interference occurs can be accurately located.

[0016] High reliability: Fiber optic sensing systems have high reliability and low maintenance costs.

[0017] Simple termination: The termination and connection of optical fiber are relatively easy, which facilitates on-site installation and maintenance.

[0018] Compatible with other communication systems: Due to the large communication capacity of optical fiber, monitoring signals and communication signals can be transmitted simultaneously on the same optical fiber.

[0019] The working principle of fiber optic sensing perimeter security devices is usually based on the backscattering or interference effect of optical fibers. When the optical fiber is subjected to external interference such as vibration and pressure, its light transmission characteristics will change, resulting in changes in the intensity of backscattered light or changes in interference fringes. By detecting these changes, abnormal activities on the perimeter can be identified in real time and the alarm system can be triggered in time.

[0020] This type of security device is suitable for various occasions that require high security, such as data centers, nuclear power plants, military facilities, airports, prisons, bridges, tunnels and other important infrastructure protection. By integrating with other security systems (such as video surveillance, motion detection, etc.), a more powerful security protection network can be formed.

[0021] At present, some of the above-mentioned important occasions actually need to prevent intrusion. In the past, the traditional method was to use cameras for monitoring and recording. However, due to the large area of ​​the venue, many cameras need to be deployed within the perimeter to ensure that the perimeter can be seen. This requires the use of many cameras, and the more cameras there are, the higher the cost of monitoring. Utility Model Content

[0022] In view of this, the purpose of the utility model is to provide a fiber optic sensing perimeter security device to solve the current technical problem that for some important occasions mentioned above, it is actually necessary to prevent intrusion. In the past, the traditional method was to use cameras for monitoring and recording. However, due to the large area of ​​the site, many cameras need to be arranged within the perimeter to ensure that the perimeter can be seen. This requires the use of many cameras, and the more cameras there are, the higher the cost of monitoring.

[0023] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0024] A fiber optic sensing perimeter security device comprises a fiber optic sensing frame, wherein a plurality of fiber optic sensing frames are provided, each of the fiber optic sensing frames is a right-angle structure, a laser emitter is provided on one side of each of the fiber optic sensing frames, a light detector is provided on the other side of each of the fiber optic sensing frames, the light detector and the laser emitter are provided correspondingly between two adjacent fiber optic sensing frames, corresponding fiber optic lines are connected between the light detectors and the laser emitters of two adjacent fiber optic sensing frames, and an artificial intelligence camera is provided between two adjacent fiber optic sensing frames.

[0025] As a preferred technical solution of the utility model, a guardrail frame is arranged at the bottom of the optical fiber sensor frame, a diamond mesh is arranged in the middle of the guardrail frame, and the mesh surface of the diamond mesh is provided with mesh holes of a diamond hole structure.

[0026] As a preferred technical solution of the utility model, an optical fiber bracket is arranged in the middle of two adjacent optical fiber sensor racks, and a plurality of through optical fiber holes are opened on the surface of the optical fiber bracket. The optical fiber line between the two adjacent optical fiber sensor racks passes through the optical fiber holes on the surface of the optical fiber bracket, and the optical fiber line between the two adjacent optical fiber sensor racks is supported by the optical fiber holes.

[0027] As a preferred technical solution of the present utility model, a camera bracket is arranged at the top of the optical fiber bracket, and the artificial intelligence camera is arranged at the bottom of the top of the camera bracket.

[0028] As a preferred technical solution of the utility model, the top of the camera bracket and the top of the optical fiber bracket are connected with reinforcing ribs.

[0029] As a preferred technical solution of the utility model, a plurality of fixed feet are arranged at the bottom of the guardrail frame, and a locking screw is installed on the surface of each of the fixed feet, and the locking screw is fastened to the ground where the fixed feet are located.

[0030] The beneficial effects of the utility model are:

[0031] The utility model performs detection through the linkage of optical fiber vibration perception and artificial intelligence camera. The optical fiber line can be buried underground, on the top of the wall, or on the top of the diamond mesh. When someone invades the perimeter, as long as the human body touches the optical fiber line, the vibration will be sensed, and the artificial intelligence camera will rotate to the artificial touch position and take pictures, realizing light and vision linkage, effectively reducing the number of cameras used, reducing the cost of camera use, and improving monitoring accuracy.

[0032] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the front structure of the optical fiber sensing perimeter security device of the utility model;

[0034] Figure 2 This is a schematic diagram of the top view of the structure of the optical fiber sensing perimeter security device of the utility model;

[0035] Figure 3 It is a schematic diagram of the left side cross-sectional structure of the optical fiber sensing perimeter security device of the utility model;

[0036] Figure 4 This is a schematic diagram of the logical structure of the optical fiber sensing perimeter security device of the utility model;

[0037] In the figure: guardrail frame 1, diamond mesh 2, fiber optic sensor frame 3, laser transmitter 4, fiber optic line 5, camera bracket 6, fiber optic bracket 7, artificial intelligence camera 8, infrared lamp 9, light detector 10, fixed base 11, locking screw 12, fiber optic hole 13, reinforcing rib 14. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0041] In the above description of the utility model, it should be noted that the terms "one side", "the other side", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0042] In addition, the term "same" does not mean that the parts must be absolutely the same, but slight differences are allowed. The term "vertical" only means that the positional relationship between the parts is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly tilted.

[0043] Embodiment 1

[0044] See also Figure 1-4 , which is a technical solution provided by the utility model: a fiber optic sensing perimeter security device, including a fiber optic sensor frame 3, a plurality of fiber optic sensor frames 3 are provided, each fiber optic sensor frame 3 is a right-angle structure, a laser emitter 4 is provided on one side of each fiber optic sensor frame 3, a light detector 10 is provided on the other side of each fiber optic sensor frame 3, the light detector 10 and the laser emitter 4 are correspondingly provided between two adjacent fiber optic sensor frames 3, a corresponding fiber optic line 5 is connected between the light detector 10 and the laser emitter 4 of two adjacent fiber optic sensor frames 3, and an artificial intelligence camera 8 is provided between two adjacent fiber optic sensor frames 3.

[0045] For details, please refer to Figure 4 , laser is emitted through the laser transmitter 4 of one of the optical fiber sensor racks 3, and the laser is transmitted to the optical detector 10 of the other optical fiber sensor rack 3 through the optical fiber line 5. The optical detector 10 detects the change of the light phase and converts the signal into an electrical signal. The electrical signal is converted into a digital signal by A / D and transmitted. The digital signal is converted into a processor by FFT, and the processor recognizes the data and analyzes it, and sends the processed data to the artificial intelligence camera 8 and various warning devices. The warning device can be an alarm light, an alarm whistle, a water mist spray device, etc.

[0046] The processor is the alarm signal acquisition and processing device, which is the core part of the vibration fiber perimeter alarm system. It is mainly used to collect the optical signal generated by the vibration sensor optical cable after external force vibration, analyze and process the signal, extract the special value of the signal, and transmit it to the industrial computer through the network for further analysis and processing. The internal structure of the collector adopts modular design, which is simple and convenient to maintain. The working parameters of the processor are as follows:

[0047]

[0048] Specifically, the utility model performs detection through the linkage of optical fiber vibration sensing and artificial intelligence camera 8. The optical fiber line 5 can be buried underground, the optical fiber line 5 can be on the top of the wall, or the optical fiber line 5 can be laid out above the diamond mesh. When someone invades the perimeter, as long as the human body touches the optical fiber line 5, the vibration will be sensed, and the artificial intelligence camera 8 will rotate to the artificial touch position and take pictures, realizing optical and visual linkage. The layout of the optical fiber line 5 can effectively reduce the number of cameras used, reduce the cost of using cameras, and improve monitoring accuracy.

[0049] Example 2

[0050] See also Figure 1-4 , which is another technical solution provided by the utility model. This embodiment is similar to the above-mentioned embodiment 1, and the similarities are not described in this embodiment. The specific differences are:

[0051] A fiber optic sensing perimeter security device includes a fiber optic sensor frame 3, a plurality of fiber optic sensor frames 3 are provided, each fiber optic sensor frame 3 is a right-angle structure, a laser emitter 4 is provided on one side of each fiber optic sensor frame 3, a light detector 10 is provided on the other side of each fiber optic sensor frame 3, the light detector 10 and the laser emitter 4 are provided correspondingly between two adjacent fiber optic sensor frames 3, a corresponding fiber optic line 5 is connected between the light detector 10 and the laser emitter 4 of two adjacent fiber optic sensor frames 3, an artificial intelligence camera 8 is provided between two adjacent fiber optic sensor frames 3, and an infrared lamp 9 is provided on the surface of the artificial intelligence camera 8, which is the abbreviation of night vision monitoring infrared lamp, and is a supplementary light device for collecting images at night in conjunction with a monitoring camera. The light emitted by the infrared lamp has two wavelengths of 850nm and 940nm, both of which are invisible light, and have the characteristics of concealment and energy saving. In the past 10 years, it has been widely used in the field of security monitoring.

[0052] The material of the infrared lamp is LED light-emitting diode: it is currently the most widely used, with a high cost-effectiveness, and is more effective within a monitoring distance of 150 meters.

[0053] Specifically, the utility model performs detection through the linkage of optical fiber vibration sensing and artificial intelligence camera 8. The optical fiber line 5 can be buried underground, the optical fiber line 5 can be on the top of the wall, or the optical fiber line 5 can be laid out above the diamond mesh. When someone invades the perimeter, as long as the human body touches the optical fiber line 5, the vibration will be sensed, and the artificial intelligence camera 8 will rotate to the artificial touch position and take pictures, realizing optical and visual linkage. The layout of the optical fiber line 5 can effectively reduce the number of cameras used, reduce the cost of using cameras, and improve monitoring accuracy.

[0054] A guardrail frame 1 is provided at the bottom of the optical fiber sensor frame 3 , a diamond mesh 2 is provided in the middle of the guardrail frame 1 , and the mesh surface of the diamond mesh 2 is provided with meshes of a diamond-shaped hole structure to protect the bottom of the optical fiber line 5 .

[0055] An optical fiber bracket 7 is disposed in the middle of two adjacent optical fiber sensor racks 3, and a plurality of through optical fiber holes 13 are provided on the surface of the optical fiber bracket 7. The optical fiber line 5 between the two adjacent optical fiber sensor racks 3 passes through the optical fiber holes 13 on the surface of the optical fiber bracket 7, and the optical fiber line 5 between the two adjacent optical fiber sensor racks 3 is supported by the optical fiber holes 13. The optical fiber bracket 7 improves the structural firmness of the optical fiber line 5 between the two adjacent optical fiber sensor racks 3.

[0056] A camera bracket 6 is arranged at the top of the optical fiber bracket 7, and an artificial intelligence camera 8 is arranged at the bottom of the top of the camera bracket 6, so as to facilitate the rotation and adjustment of the artificial intelligence camera 8, so that the artificial intelligence camera 8 can more clearly capture the portrait at any position of the optical fiber line 5.

[0057] A reinforcing rib 14 is connected between the top of the camera bracket 6 and the top of the optical fiber bracket 7 to improve the structural strength of the camera bracket 6 .

[0058] A plurality of fixed feet 11 are provided at the bottom of the guardrail frame 1 , and a locking screw 12 is installed on the surface of each fixed foot 11 . The locking screw 12 is fastened to the ground where the fixed foot 11 is located, thereby improving the installation firmness of the guardrail frame 1 .

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A fiber optic sensor perimeter security device, comprising a fiber optic sensor frame (3), characterized in that: A plurality of optical fiber sensor racks (3) are provided, each of the optical fiber sensor racks (3) is a right-angle structure, a laser emitter (4) is provided on one side of each of the optical fiber sensor racks (3), a light detector (10) is provided on the other side of each of the optical fiber sensor racks (3), the light detector (10) and the laser emitter (4) are provided correspondingly between two adjacent optical fiber sensor racks (3), a corresponding optical fiber line (5) is connected between the light detector (10) and the laser emitter (4) of two adjacent optical fiber sensor racks (3), and an artificial intelligence camera (8) is provided between two adjacent optical fiber sensor racks (3).

2. The optical fiber sensing perimeter security device according to claim 1, characterized in that: A guardrail frame (1) is arranged at the bottom of the optical fiber sensor frame (3), a diamond mesh (2) is arranged in the middle of the guardrail frame (1), and the mesh surface of the diamond mesh (2) is provided with mesh holes with a diamond hole structure.

3. The optical fiber sensing perimeter security device according to claim 1, characterized in that: An optical fiber bracket (7) is arranged in the middle of two adjacent optical fiber sensor racks (3); a plurality of through optical fiber holes (13) are provided on the surface of the optical fiber bracket (7); an optical fiber line (5) between the two adjacent optical fiber sensor racks (3) passes through the optical fiber holes (13) on the surface of the optical fiber bracket (7); and the optical fiber line (5) between the two adjacent optical fiber sensor racks (3) is supported by the optical fiber holes (13).

4. The optical fiber sensing perimeter security device according to claim 3, characterized in that: A camera bracket (6) is arranged at the top end of the optical fiber bracket (7), and the artificial intelligence camera (8) is arranged at the bottom end of the top end of the camera bracket (6).

5. The optical fiber sensing perimeter security device according to claim 4, characterized in that: A reinforcing rib (14) is connected between the top end of the camera support (6) and the top end of the optical fiber support (7).

6. The optical fiber sensing perimeter security device according to claim 2, characterized in that: A plurality of fixed feet (11) are arranged at the bottom of the guardrail frame (1), and a locking screw (12) is installed on the surface of each fixed foot (11), and the locking screw (12) is fastened to the ground where the fixed foot (11) is located.

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