A directional acoustic bird deterrent device for substations

Abstract

This utility model relates to a directional acoustic bird deterrent device for substations, comprising a housing, a pan-tilt unit, an intermediate-frequency (IF) high-power horn array, and a high-frequency directional horn array. The IF and high-frequency directional horn arrays are fixed inside the housing, which also houses a control circuit board. The control circuit board includes a central processing unit (CPU), an IF high-power amplifier module, and a high-frequency directional amplifier module. The CPU is connected to the IF and high-frequency directional horn arrays via the IF and high-frequency amplifier modules, respectively. The housing is fixed to the pan-tilt unit, which is connected to an external power supply and network. The pan-tilt unit supplies power to the control circuit board and transmits data with the CPU. The CPU controls the pan-tilt unit to rotate left and right and tilt. This utility model achieves directional focusing and long-distance coverage of acoustic energy; it effectively solves the core problems of poor directionality and single frequency band in traditional technologies, significantly improving the accuracy and reliability of bird deterrent protection in substations.

Description

Technical Field

[0001] This utility model relates to the field of sound warning device technology, and in particular to a directional sound wave bird deterrent device for substations. Background Technology

[0002] In recent years, with the rapid development of power grid facilities, the problem of equipment failures caused by bird activity in substations has become increasingly prominent. Birds nesting, roosting, or defecating in substations can lead to short circuits, insulator contamination, and even fires, seriously threatening the safe and stable operation of the power system. Therefore, the industry widely uses acoustic bird deterrent devices as a protective measure; however, existing technologies still have the following key problems:

[0003] Insufficient sound wave coverage and directionality: Traditional bird deterrent devices mostly use a fixed, single horn or ultrasonic generator. The sound waves propagate in a divergent manner, dispersing energy and resulting in a short effective range (usually less than 50 meters). Furthermore, they cannot precisely target specific locations to deter birds. Birds tend to gather in the device's blind spots, especially in the complex spaces of substations, where the deterrent effect is limited.

[0004] Limited frequency band and adaptability: Most devices rely on only a single frequency band (such as ultrasound or high-frequency noise), while different birds have different sensitivities to sound waves (for example, some birds are more sensitive to mid-frequency sound waves, while high-frequency sound waves are more effective against distant targets). Existing technologies lack multi-frequency synergy mechanisms, making it difficult to cope with scenarios where multiple bird species coexist in substations.

[0005] Weak intelligent and dynamic tracking capabilities: Conventional devices mostly operate in a static mode and cannot adjust the direction of sound wave emission in real time according to bird activity. Although some products have attempted to introduce camera detection, they lack closed-loop control with gimbal turning and sound wave emission, resulting in slow response speed and difficulty in actively tracking and repelling birds.

[0006] Low scalability and integration: Existing bird deterrence equipment has limited functionality. When external sensors or auxiliary modules (such as lighting and laser deterrence) are connected, they need to be installed independently, resulting in a bloated system, complex wiring, and poor compatibility, making it difficult to meet the multi-functional integration requirements of intelligent operation and maintenance of substations. Utility Model Content

[0007] To address the aforementioned technical problems, the purpose of this utility model is to provide a directional acoustic bird deterrent device for substations, which has a wide range of functions and emits sound with a broad coverage area.

[0008] To achieve the above-mentioned objectives, this utility model adopts the following technical solution:

[0009] A directional acoustic bird deterrent device for substations includes a housing, a pan-tilt unit, an intermediate frequency (IF) high-power horn array, and a high-frequency directional horn array. The IF and high-frequency directional horn arrays are fixed inside the housing. A control circuit board is also fixed inside the housing. The control circuit board is equipped with a central processing unit (CPU), an IF high-power amplifier module, and a high-frequency directional amplifier module. The CPU is connected to the IF and high-frequency directional horn arrays through the IF and high-frequency amplifier modules, respectively. The housing is fixed to the pan-tilt unit, which is connected to an external power supply and a network. The pan-tilt unit supplies power to the control circuit board and transmits data with the CPU. The CPU controls and drives the pan-tilt unit to rotate left and right and tilt.

[0010] As a preferred embodiment, the back of the housing is also provided with multiple sets of limiting strips, and an external plug for connecting a camera, lighting source or laser component is inserted between every two limiting strips.

[0011] As a preferred embodiment, the limiting strip is shaped like the number 7, the two limiting strips are symmetrically arranged, the cross-section of the external plug is convex, and the external plug is inserted between the two limiting strips.

[0012] As a preferred embodiment, one end of the external plug is also provided with an upper stop, which abuts against the upper end of the limiting strip, and the external plug is also fastened to the housing by screws.

[0013] As a preferred embodiment, the housing is connected to a camera via an external plug-in, and the control circuit board is also equipped with a power conversion module and a video driver module. The camera is connected to the central processing unit via the video driver module.

[0014] As a preferred embodiment, an inverted T-shaped connecting frame is fixed to the back of the housing, an upper bracket is fixed to the lower part of the connecting frame, rotating shafts extend from both sides of the gimbal, the two ends of the upper bracket are folded down and fixed to the rotating shafts, and a lower mounting plate is rotatably connected to the bottom of the gimbal; the gimbal drives the rotating shafts to rotate and the lower mounting plate to rotate.

[0015] As a preferred embodiment, the thickness of the middle part of the housing is greater than the thickness of the two sides. The mid-frequency high-power sound horn array is fixed in the middle region of the housing, and two sets of high-frequency directional horn arrays are symmetrically arranged on both sides of the mid-frequency high-power sound horn array, located in the two side regions of the housing.

[0016] As a preferred embodiment, the front of the housing is provided with through holes, and the area where the mid-frequency high-power speaker array is located is a circular array of through holes, while the area where the high-frequency directional speaker array is located is a hexagonal honeycomb-shaped through hole.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention achieves directional focusing and long-distance coverage of sound wave energy through a composite layout of a mid-frequency high-power horn array and a high-frequency directional horn array, combined with the pitch-rotation dual-degree-of-freedom adjustment of the pan-tilt unit. At the same time, through a modular external design compatible with multiple expansion functions, it effectively solves the core pain points of traditional technologies such as poor directionality, single frequency band, slow response, and low system integration, significantly improving the accuracy and reliability of bird deterrence protection in substations. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation thereof.

[0020] Figure 1 and Figure 2 These are structural schematic diagrams of this utility model from two different angles;

[0021] Figure 3 This is a partially enlarged structural schematic diagram of the present invention;

[0022] Figure 4 This is a block diagram of the internal circuit structure of this utility model.

[0023] The attached diagram is labeled as follows: 1. Housing; 11. Limiting strip; 2. Pan-tilt unit; 21. Upper bracket; 22. Lower mounting plate; 3. External plug; 31. Upper edge; 4. Mid-frequency high-power speaker array; 5. High-frequency directional speaker array; 6. Connecting frame. Detailed Implementation

[0024] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0025] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0026] Furthermore, in the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0031] like Figures 1 to 4As shown, a substation directional acoustic bird deterrent device includes a housing 1, a pan-tilt unit 2, a mid-frequency high-power speaker array 4, and a high-frequency directional speaker array 5. The mid-frequency high-power speaker array 4 and the high-frequency directional speaker array 5 are fixed inside the housing 1. A control circuit board is also fixed inside the housing 1. The control circuit board is equipped with a central processing unit, a mid-frequency high-power amplifier module, and a high-frequency directional amplifier module. The central processing unit is connected to the mid-frequency high-power speaker array 4 and the high-frequency directional speaker array 5 through the mid-frequency high-power amplifier module and the high-frequency directional amplifier module, respectively. The housing 1 is fixed on the pan-tilt unit 2. The pan-tilt unit 2 is connected to an external switching power supply and a network. The pan-tilt unit 2 supplies power to the control circuit board and transmits data with the central processing unit. The central processing unit controls and drives the pan-tilt unit 2 to rotate left and right and tilt.

[0032] The aforementioned structure employs a mid-frequency high-powered loudspeaker to cover the near-field deterrence (50-100 meters) and a high-frequency directional loudspeaker to focus on the far field (over 100 meters), adapting to bird threats at different distances. Simultaneously, the pan-tilt unit, through left-right rotation and pitch control, combined with real-time control by the central processor, dynamically adjusts the sound wave direction according to the target, eliminating blind spots typical of traditional fixed devices. Furthermore, the pan-tilt unit directly connects to an external power source and network, simplifying wiring and enhancing outdoor adaptability and remote control capabilities.

[0033] The back of the housing 1 is also equipped with multiple sets of limiting strips 11, with an external plug 3 for connecting a camera, lighting source, or laser component inserted between every two limiting strips 11. This structure quickly integrates a camera (for real-time monitoring of bird activity), a lighting source (for nighttime assistance), or a laser component (to enhance deterrence) through the external plug, forming a closed-loop system of "monitoring-deterrence-driving". Simultaneously, a standardized interface design is adopted to avoid the independent installation of multiple sets of equipment, reducing equipment redundancy and wiring complexity within the substation.

[0034] The limiting strips 11 are in the shape of a "7", and the two limiting strips 11 are symmetrically arranged. The external plug 3 has a convex cross-section and is inserted between the two limiting strips 11. The matching of the convex and "7" shaped slots ensures the uniqueness of the insertion direction of the external component and prevents misinstallation. The above structure is also resistant to vibration and detachment: the snap-fit ​​structure combined with gravity self-locking prevents the component from loosening due to outdoor wind vibration or equipment vibration.

[0035] One end of the external plug 3 is also provided with an upper stop 31, which abuts against the upper end of the limiting strip 11, and the external plug 3 is also fastened to the housing 1 by screws. The upper stop restricts vertical displacement, and the screw fastening resists horizontal shear force, ensuring the stability of the external component under extreme weather conditions (such as strong winds and heavy rain). Moreover, the screws can be fixed with only a few operations, which is convenient for module replacement or upgrades.

[0036] The housing 1 is connected to a camera via an external plug 3. The control circuit board is also equipped with a power conversion module and a video driver module. The camera is connected to the central processing unit via the video driver module.

[0037] An inverted T-shaped connecting frame 6 is fixed to the back of the housing 1. An upper support 21 is fixed to the lower part of the connecting frame 6. Rotating shafts extend from both sides of the gimbal 2. The two ends of the upper support 21 are folded downwards and fixed to the rotating shafts. A lower mounting plate 22 is rotatably connected to the bottom of the gimbal 2. The gimbal 2 drives the rotating shafts and the lower mounting plate 22 to rotate. The inverted T-shaped connecting frame distributes the weight of the housing, and the dual-degree-of-freedom design of the rotating shafts and the lower mounting plate reduces the moment of inertia of the gimbal and improves the steering response speed (up to 0.1° / s accuracy). At the same time, the lower mounting plate increases the contact area of ​​the gimbal base, enhancing the device's anti-tipping ability in strong wind environments.

[0038] The thickness of the housing 1 in the middle is greater than that on both sides. The mid-frequency high-power speaker array 4 is fixed in the middle region of the housing 1, and two sets of high-frequency directional speaker arrays 5 are symmetrically arranged on both sides of the mid-frequency high-power speaker array 4, located in the side regions of the housing 1. The centrally located mid-frequency speaker array enhances the near-field sound pressure level (up to 120dB), while the symmetrically distributed high-frequency arrays on both sides form a narrow beam (±15° directional angle), achieving a composite sound field of "mid-frequency coverage + high-frequency precise strike". At the same time, the difference in housing thickness provides heat dissipation space for the high-power mid-frequency speaker, avoiding thermal interference from the high-frequency components.

[0039] The front of the housing 1 has through holes, with the area containing the mid-frequency high-power speaker array 4 having circular through holes and the area containing the high-frequency directional speaker array 5 having hexagonal honeycomb through holes. The circular through holes reduce mid-frequency sound wave reflection loss (transmittance > 90%), ensuring mid-frequency energy diffusion; the hexagonal honeycomb holes match high-frequency wavelengths, suppressing sound wave diffraction and improving high-frequency directionality (beamwidth reduction of 20%). Simultaneously, the honeycomb structure ensures sound transmission while preventing debris from entering the housing.

[0040] This invention solves the problems of poor directionality, slow response, and limited functionality of traditional bird deterrent devices by using multi-band sound field coordination, dynamic tracking of the PTZ, modular expansion interface, and acoustic structure optimization. It significantly improves the bird deterrent efficiency of substations (measured bird deterrent success rate > 95%) and equipment reliability.

[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A substation directional acoustic bird repelling device characterized by: The device includes a housing (1), a pan-tilt unit (2), a mid-frequency high-power speaker array (4), and a high-frequency directional speaker array (5). The mid-frequency high-power speaker array (4) and the high-frequency directional speaker array (5) are fixed inside the housing (1). A control circuit board is also fixed inside the housing (1). The control circuit board is equipped with a central processing unit, a mid-frequency high-power amplifier module, and a high-frequency directional amplifier module. The central processing unit is connected to the mid-frequency high-power speaker array (4) and the high-frequency directional speaker array (5) through the mid-frequency high-power amplifier module and the high-frequency directional amplifier module, respectively. The housing (1) is fixed on the pan-tilt unit (2). The pan-tilt unit (2) is connected to an external switching power supply and a network. The pan-tilt unit (2) supplies power to the control circuit board and transmits data with the central processing unit. The central processing unit controls and drives the pan-tilt unit (2) to rotate left and right and tilt.

2. The substation directional acoustic bird repelling device according to claim 1, characterized in that, The back of the housing (1) is also provided with multiple sets of limiting strips (11), and an external plug (3) for connecting a camera, lighting source or laser component is inserted between every two limiting strips (11).

3. The substation directional acoustic bird repelling device according to claim 2, characterized in that, The limiting strip (11) is shaped like the number 7, and the two limiting strips (11) are symmetrically arranged. The cross section of the external plug (3) is convex, and the external plug (3) is inserted between the two limiting strips (11).

4. The substation directional acoustic bird repelling device according to claim 2, characterized in that, One end of the external plug (3) is also provided with an upper stop (31), which abuts against the upper end of the limiting strip (11), and the external plug (3) is also fastened to the housing (1) by screws.

5. A directional acoustic bird deterrent device for a substation according to claim 2, characterized in that, The housing (1) is connected to a camera via an external plug (3). The control circuit board is also equipped with a power conversion module and a video driver module. The camera is connected to the central processing unit via the video driver module.

6. A substation directional acoustic bird repelling device according to claim 1, characterized in that, The back of the housing (1) is also fixed with an inverted T-shaped connecting frame (6), and the lower part of the connecting frame (6) is fixed with an upper bracket (21). The two sides of the gimbal (2) extend with rotating shafts, and the two ends of the upper bracket (21) are folded down and fixed with the rotating shafts. The bottom of the gimbal (2) is rotatably connected with a lower mounting plate (22). The gimbal (2) drives the rotating shaft to rotate and the lower mounting plate (22) to rotate.

7. The substation directional acoustic bird repelling device according to claim 1, characterized in that, The thickness of the middle part of the housing (1) is greater than the thickness of the two sides. The mid-frequency high-power sound horn array (4) is fixed in the middle region of the housing (1). Two sets of high-frequency directional horn arrays (5) are symmetrically arranged on both sides of the mid-frequency high-power sound horn array (4) and located in the two side regions of the housing (1).

8. The substation directional acoustic bird repelling device according to claim 1, characterized in that, The front of the housing (1) has through holes, and the area where the mid-frequency high-power horn array (4) is located is a circular array through hole, while the area where the high-frequency directional horn array (5) is located is a hexagonal honeycomb through hole.

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