An ultra-low power, high-intensity directional acoustic early warning device

Abstract

This utility model relates to an ultra-low power, high-intensity directional acoustic warning device, including a front panel, a housing, a warning light, a sound-generating module, and a circuit board assembly. The circuit board assembly includes a power management module, a central management module, an audio algorithm processing unit, and a boost drive module. The power management module supplies power to the strobe light and the piezoelectric sound-generating unit. The central management module connects to the audio algorithm processing unit, the boost drive module, and the strobe light. The audio algorithm processing unit is connected to the boost drive module, which is also connected to the piezoelectric sound-generating unit. The central management module controls the audio algorithm processing unit to process the input audio signal and then drives the piezoelectric sound-generating unit to emit sound through the boost drive module. This utility model overcomes the high power consumption bottleneck of traditional electromagnetic loudspeakers and integrates the collaborative work of the strobe light and the piezoelectric sound source, enhancing target recognition through multi-dimensional warnings.

Description

Technical Field

[0001] This utility model relates to the field of acoustic early warning equipment technology, and in particular to an ultra-low power, high-intensity directional acoustic early warning device. Background Technology

[0002] With the increasing demand for public safety, sound and light warning devices are being used more and more widely in security, disaster warning, and emergency command. Traditional sound wave warning devices mostly use high-power electromagnetic speakers to achieve strong sound output, but they have significant drawbacks: on the one hand, electromagnetic speakers require continuous high-power driving, resulting in extremely high overall power consumption of the device, making it difficult to meet the requirements for battery life in outdoor or mobile scenarios; on the other hand, existing devices mostly use a single sound warning mode, which is easily masked by environmental noise in complex environments (such as noisy places), and lacks a synergistic enhancement mechanism between light warning and directional sound waves.

[0003] To address these issues, the industry has attempted to reduce energy consumption by optimizing circuit design or using low-power devices. However, due to the inherent characteristics of traditional sound-generating units, it is difficult to achieve ultra-low power consumption while maintaining strong sound output. Furthermore, existing sound-light linkage modules are mostly discrete designs, lacking integrated control of signal processing and drive units, resulting in response delays and low energy efficiency. Utility Model Content

[0004] To address the aforementioned technical problems, the purpose of this utility model is to provide an ultra-low power, high-intensity directional acoustic wave early warning device, which achieves a comprehensive improvement in the effectiveness of sound and light-based coordinated early warning and the efficiency of device operation.

[0005] To achieve the above-mentioned objectives, this utility model adopts the following technical solution:

[0006] An ultra-low power, high-intensity directional acoustic warning device includes a front panel, a housing, a warning light, a sound-emitting module, and a circuit board assembly. The front panel and housing are fixed to each other and form an internal mounting cavity. The warning light, sound-emitting module, and circuit board assembly are fixed within the mounting cavity. The warning light and sound-emitting module includes a strobe light and a piezoelectric sound-emitting unit. The circuit board assembly is equipped with a power management module, a central management module, an audio algorithm processing unit, and a boost drive module. The power management module converts the input power and supplies it to the strobe light and piezoelectric sound-emitting unit. The central management module is connected to the audio algorithm processing unit, the boost drive module, and the strobe light. The audio algorithm processing unit is connected to the boost drive module, which is also connected to the piezoelectric sound-emitting unit. The central management module controls the audio algorithm processing unit to process the input audio signal and then drives the piezoelectric sound-emitting unit to emit sound through the boost drive module.

[0007] As a preferred embodiment, the front panel is also provided with an elongated mounting hole, the strobe light is embedded in the elongated mounting hole, and multiple through holes are arranged in an array in the area of ​​the front panel covering the piezoelectric sound unit.

[0008] As a preferred embodiment, the outer edge of the inner wall of the front panel is provided with multiple buckles, and the outer edge of the inner wall of the housing is provided with multiple locking holes. The front panel and the housing are fastened together by the engagement of the buckles and locking holes.

[0009] As a preferred embodiment, the four corners of the back of the housing are provided with mounting grooves, and magnetic blocks are embedded in the mounting grooves. The magnetic blocks are fixed by screws, and washers are provided between the screws and the housing.

[0010] As a preferred embodiment, the circuit board assembly is further provided with a switch, an indicator light and an external connector, and the housing is provided with corresponding openings so that the switch, indicator light and external connector can pass through the openings.

[0011] As a preferred embodiment, a battery is also fixed inside the mounting cavity, the power management module charges the battery, and the battery supplies power to the strobe light and the piezoelectric sound unit.

[0012] As a preferred embodiment, the circuit board assembly is further provided with an audio storage module, which is connected to the audio algorithm processing unit for data transmission.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention overcomes the high power consumption bottleneck of traditional electromagnetic speakers through a matching design of a piezoelectric sound-generating unit and a boost drive module. Simultaneously, it integrates a strobe light and a piezoelectric sound source in a collaborative working mode, enhancing target recognition through multi-dimensional warnings. Its technical solution fundamentally solves the problems of "high energy consumption and insufficient multi-modal collaborative efficiency" in existing equipment. Attached Figure Description

[0015] 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.

[0016] Figure 1 and Figure 2 These are schematic diagrams of the overall structure of this utility model from two different angles;

[0017] Figure 3 and Figure 4 These are two different exploded structural diagrams of this utility model;

[0018] Figure 5 This is a schematic diagram of the circuit board assembly of this utility model.

[0019] The attached diagram is labeled as follows: 1. Front panel; 11. Long strip mounting hole; 12. Through hole; 13. Buckle; 2. Housing; 20. Mounting slot; 21. Snap hole; 3. Warning light and sound module; 31. Strobe light; 32. Piezoelectric sound unit; 4. Circuit board assembly; 41. Switch; 42. Indicator light; 43. External connector; 5. Magnetic block; 6. Gasket. Detailed Implementation

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0027] like Figures 1 to 5 As shown, an ultra-low power, high-intensity directional sound wave warning device includes a front panel 1, a housing 2, a warning light and sound-emitting module 3, and a circuit board assembly 4. The front panel 1 and the housing 2 are fixed to each other and form an internal mounting cavity. The warning light and sound-emitting module 3 and the circuit board assembly 4 are fixed in the mounting cavity. The warning light and sound-emitting module 3 includes a strobe light 31 and a piezoelectric sound-emitting unit 32. The circuit board assembly 4 is provided with a power management module, a central management module, an audio algorithm processing unit, and a boost drive module. The power management module converts the input power and supplies power to the strobe light 31 and the piezoelectric sound-emitting unit 32. The central management module is connected to the audio algorithm processing unit, the boost drive module, and the strobe light 31. The audio algorithm processing unit is connected to the boost drive module, which is also connected to the piezoelectric sound-emitting unit 32. The central management module controls the audio algorithm processing unit to process the input audio signal and then drives the piezoelectric sound-emitting unit 32 to emit sound through the boost drive module.

[0028] The aforementioned structure replaces the traditional electromagnetic loudspeaker with a piezoelectric sound-generating unit. The electroacoustic conversion efficiency of piezoelectric materials is significantly higher than that of electromagnetic coils. Combined with the precise voltage control of the boost drive module, it significantly reduces energy consumption while maintaining high sound pressure level output, making it suitable for long-term outdoor or mobile scenarios. Simultaneously, the strobe light and piezoelectric sound-generating unit are integrated into the same module, with a central management module uniformly controlling the timing of the sound and light signals to achieve synchronous triggering of sound waves and light flashes, enhancing the warning penetration in complex environments. The audio algorithm processing unit of the aforementioned structure can also perform real-time processing of the phase and frequency of the audio signal. Combined with the directional characteristics of the piezoelectric unit, it forms a narrow-beam sound field, reducing sound energy diffusion and increasing the sound intensity concentration in the target area.

[0029] The front panel 1 also has elongated mounting holes 11, in which the strobe light 31 is embedded. Multiple through holes 12 are arranged in an array on the area of ​​the front panel 1 covering the piezoelectric sound-generating unit 32. The elongated mounting holes provide linear diffusion space for the strobe light, increasing the light coverage angle while preventing light from being blocked by the panel, ensuring wide-area visibility of the light warning. The array-shaped through hole design matches the vibration surface distribution of the piezoelectric sound-generating unit, reducing sound wave attenuation in the propagation path. Simultaneously, the optimization of hole size and arrangement density suppresses high-frequency distortion and improves sound wave directivity.

[0030] The front panel 1 has multiple snap-fits 13 along its inner outer edge, and the housing 2 has multiple snap-fit ​​holes 21 along its inner outer edge. The front panel 1 and housing 2 are fastened together by the engagement of the snap-fits 13 and the snap-fit ​​holes 21. The snap-fit ​​and snap-fit ​​structure simplifies the assembly process of the front panel and housing, allowing for fixation without additional tools. The snap-fit ​​design also ensures tight joints, preventing dust and moisture from entering the internal cavity and improving the equipment's environmental adaptability.

[0031] The back of the housing 2 has four corner mounting slots 20, in which magnetic blocks 5 are embedded and fixed by screws. A washer 6 is also provided between the screws and the housing 2. The magnetic blocks are embedded at the four corners of the housing, allowing the device to be quickly attached to metal surfaces (such as vehicles or guardrails), suitable for temporary deployment needs. The screw reinforcement combined with the elastic washer design prevents the magnetic blocks from falling off due to vibration and reduces installation stress damage to the housing, balancing convenience and reliability.

[0032] The circuit board assembly 4 is also equipped with a switch 41, an indicator light 42, and an external connector 43. The housing 2 has corresponding openings, allowing the switch 41, indicator light 42, and external connector 43 to pass through. The switch and indicator light are exposed in the housing, facilitating direct operation and status monitoring by the user. The external connector (such as a power or audio input interface) supports device expansion functions (such as external audio sources and remote control), enhancing the flexibility of device applications.

[0033] A battery is also fixed inside the mounting cavity. The power management module charges the battery, and the battery powers the strobe light 31 and the piezoelectric sound unit 32. The built-in battery and power management module enable the device to be completely wireless, eliminating dependence on a fixed power source and making it suitable for outdoor or emergency scenarios. Intelligent charge and discharge management (such as overcharge protection and power balancing) extends battery life and ensures the stability of the device under extreme temperatures or long standby times.

[0034] The circuit board assembly 4 is also equipped with an audio storage module, which is connected to the audio algorithm processing unit for data transmission. The audio storage module has multiple preset warning audios (such as alarm tones and voice commands), and can still autonomously recall stored content even if the external signal is interrupted, ensuring continuous early warning capability in critical scenarios; the direct connection design with the audio algorithm processing unit reduces data transmission latency and improves real-time response.

[0035] This invention systematically solves the shortcomings of traditional early warning equipment in terms of energy consumption, directivity, environmental adaptability and functional expandability through a low-power acoustic architecture of piezoelectric sound generation unit + boost drive, sound and light coordinated control algorithm, modular structural design and intelligent power management. It is especially suitable for fields with stringent requirements for equipment reliability, such as security inspection and disaster emergency response.

[0036] 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.

[0037] 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. An ultra-low power consumption strong directional sound wave warning device, characterized in that: The device includes a front panel (1), a housing (2), a warning light and sound-emitting module (3), and a circuit board assembly (4). The front panel (1) and the housing (2) are fixed to each other and form an internal mounting cavity. The warning light and sound-emitting module (3) and the circuit board assembly (4) are fixed in the mounting cavity. The warning light and sound-emitting module (3) includes a strobe light (31) and a piezoelectric sound-emitting unit (32). The circuit board assembly (4) is provided with a power management module, a central management module, an audio algorithm processing unit, and a boost drive module. The power management module converts the input power and supplies power to the strobe light (31) and the piezoelectric sound-emitting unit (32). The central management module is connected to the audio algorithm processing unit, the boost drive module, and the strobe light (31). The audio algorithm processing unit is connected to the boost drive module. The boost drive module is also connected to the piezoelectric sound-emitting unit (32). The central management module controls the audio algorithm processing unit to process the input audio signal and then drives the piezoelectric sound-emitting unit (32) to emit sound through the boost drive module.

2. The ultra-low power consumption strong directional sound wave early warning device according to claim 1, characterized in that, The front panel (1) is also provided with an elongated mounting hole (11), and the strobe light (31) is embedded in the elongated mounting hole (11). Multiple through holes (12) are arranged in an array on the area of ​​the front panel (1) covering the piezoelectric sound unit (32).

3. The ultra-low power consumption strong directional sound wave early warning device according to claim 1 or 2, characterized in that, The inner wall of the front panel (1) is provided with multiple buckles (13), and the inner wall of the housing (2) is provided with multiple holes (21). The front panel (1) and the housing (2) are fastened together by the engagement of the buckles (13) and the holes (21).

4. The ultra-low power consumption strong directional sound wave early warning device according to claim 1 or 2, characterized in that, The back of the housing (2) is provided with four corners of the housing, and a magnetic block (5) is embedded in the mounting groove (20). The magnetic block (5) is fixed by screws, and a gasket (6) is provided between the screws and the housing (2).

5. The ultra-low power consumption strong directional sound wave warning device according to claim 1 or 2, characterized in that, The circuit board assembly (4) is also provided with a switch (41), an indicator light (42) and an external connector (43), and the housing (2) is provided with corresponding openings so that the switch (41), indicator light (42) and external connector (43) can pass through the openings.

6. The ultra-low power, high-intensity directional acoustic wave early warning device according to claim 1, characterized in that, A battery is also fixed inside the mounting cavity. The power management module charges the battery, and the battery supplies power to the strobe light (31) and the piezoelectric sound unit (32).

7. The super low power consumption strong directional sound wave warning device according to claim 1, characterized in that, The circuit board assembly (4) is also provided with an audio storage module, which is connected to the audio algorithm processing unit for data transmission.

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