Rapid detection equipment for 3D high-frequency signal generator of underwater navigation body

Abstract

The utility model relates to the technical field of ocean engineering equipment, in particular to rapid detection equipment for a 3D (three-dimensional) high-frequency signal generator of an underwater navigation body. The underwater vehicle 3D high-frequency signal generator detection device aims to improve the detection convenience and accuracy of an underwater vehicle 3D high-frequency signal generator, the hydrophone fixing assembly can conveniently and stably fix a hydrophone on an underwater acoustic transducer of an underwater vehicle, and the stability of signal transmission in the testing process is ensured. The circuit board assembly, the loudspeaker assembly and the like in the equipment can process signals output by the 3D high-frequency signal generator through the underwater acoustic transducer and output low-frequency sound signals which can be heard by human ears through the loudspeaker assembly, complex parameter setting and waveform interpretation do not need to be carried out, and inspection work of the 3D high-frequency signal generator is completed more quickly. The device is compact in structure and easy to carry and maintain, and provides powerful technical support for research, development and testing of underwater navigation body products.

Description

Technical Field

[0001] This utility model relates to the field of marine engineering equipment technology, specifically to a rapid detection device for a 3D high-frequency signal generator for underwater vehicles. Background Technology

[0002] The signal generated by the 3D high-frequency signal generator of a certain type of underwater vehicle is output by an underwater acoustic transducer. The detection and inspection of the 3D high-frequency signal generator of this type of underwater vehicle is a crucial step.

[0003] First, the underwater acoustic transducer used for the signal output of the 3D high-frequency signal generator is located directly beneath the underwater vehicle, making it extremely inconvenient for debugging and inspection. Traditional operation requires operators to squat and hold the hydrophone for extended periods to achieve close contact between the hydrophone and the transducer. This places a significant strain on the operator's body and makes it difficult to maintain operational stability; the hydrophone is prone to shaking, leading to unstable contact, interference with signal transmission, and ultimately negatively impacting the accuracy of debugging and inspection results.

[0004] Secondly, the testing methods have a high operational threshold. When debugging and inspecting the 3D high-frequency signal generator, operators must be highly proficient in using oscilloscopes, involving numerous parameter settings and waveform interpretation, which prolongs the training cycle for individual operators and indirectly increases labor and time costs.

[0005] Furthermore, this type of underwater vehicle is designed for underwater environments, while traditional testing methods are based on land-based environments and cannot be used for underwater testing. Due to the unique acoustic propagation characteristics and current interference in the underwater environment, data obtained through traditional testing methods tends to have larger errors, failing to accurately reflect the product's true performance and thus hindering the high-quality development and application requirements of the product.

[0006] Furthermore, during prolonged onshore commissioning, the underwater acoustic transducers are highly susceptible to damage due to prolonged exposure to air. Damage to the transducers not only directly hinders subsequent commissioning, causing project delays, but also results in additional time wastage and financial losses. Utility Model Content

[0007] In response to the work requirements and existing problems in the aforementioned background technology, the inventors have considered and innovated in order to provide a rapid testing device for 3D high-frequency signal generators of underwater vehicles. This device is convenient, efficient, and capable of simulating underwater testing to meet the debugging and inspection requirements of underwater vehicle products and ensure the smooth progress of product research and development and production.

[0008] To solve the above problems and achieve the above objectives, the present invention adopts the following technical solution:

[0009] A rapid testing device for a 3D high-frequency signal generator for underwater vehicles includes a power adapter and a power supply. It also includes:

[0010] The chassis (1) is a rectangular structure with one side being a cover plate (11) and four corner mounting posts (12) inside. The cover plate (11) is detachably connected to the chassis (1) by bolts and mounting posts (12). The cover plate (11) has a power cord hole, and the chassis (1) has a hydrophone signal cable hole on another side.

[0011] Power cord (2), which passes through the power cord hole on the cover plate (11) and is connected to the circuit board assembly (5);

[0012] Hydrophone (3), the hydrophone (3) is connected to hydrophone signal cable (31), the hydrophone signal cable (31) passes through the hydrophone signal cable hole on the chassis (1) and is connected to the circuit board assembly (5);

[0013] Hydrophone fixing assembly (4) is fixedly connected to the bottom of the hydrophone (3) and the hydrophone signal cable (31);

[0014] Circuit board assembly (5), which is detachably connected to the cover plate (11) of the chassis (1) by bolts;

[0015] The speaker assembly (6) consists of two sets, which are symmetrically fixed to one of the opposing sides of the chassis (1) and connected to the circuit board assembly (5) via cables.

[0016] As a preferred embodiment of the present invention, the cover plate (11) has a mounting base (111), and the mounting base (111) has several bolt holes and a power cord hole.

[0017] As a preferred embodiment of the present invention, the chassis (1) has a group of opposing surfaces of the speaker assembly (6) arranged in a circular pattern with several sound outlet holes (13).

[0018] As a preferred embodiment of this utility model, the hydrophone fixing assembly (4) includes:

[0019] An elastic band (41) has its two ends passing through a card holder (43) and being detachably connected to the card holder (43) via a buckle (42);

[0020] Buckle (42), there are two buckles (42), and elastic band (41) is wrapped around buckle (42);

[0021] Card holder (43) is fixedly connected to the bottom of the hydrophone (3) and the hydrophone signal cable (31).

[0022] As a preferred embodiment of this utility model, the circuit board assembly (5) includes:

[0023] The circuit board base (51) is composed of two rectangular plates connected together. One rectangular plate is hollow and has several bolt holes, and the other rectangular plate has connecting studs at the four corners.

[0024] The detection function circuit board (52) consists of several pieces, which are connected together by connecting studs on the circuit board base (51) and are detachably connected to the circuit board base (51) by the connecting studs.

[0025] As a preferred embodiment of this utility model, the detection function circuit board (52) includes a filter and a power amplifier.

[0026] The working principle of this utility model is as follows:

[0027] 1. Quick mounting of hydrophone and underwater acoustic transducer:

[0028] To facilitate underwater testing, the device is designed with a hydrophone fixing assembly (4), which includes an elastic band (41), a buckle (42), and a mounting bracket (43). The hydrophone (3) can be quickly fixed to the underwater acoustic transducer (71) of the underwater vehicle (7) using the hydrophone fixing assembly (4). The entire testing device can be easily placed underwater for testing without the need for operators to hold it, greatly improving the convenience of underwater testing and enhancing the accuracy of test results compared to land-based testing.

[0029] 2. Signal Input and Filtering: The 3D high-frequency signal generator of the underwater vehicle (7) outputs a signal through the underwater acoustic transducer (71). The device collects this signal through the hydrophone (3) and transmits it to the circuit board assembly (5). The detection function circuit board (52) in the circuit board assembly (5) contains a filter that filters the input pulse signal, removes unwanted frequency components, and retains only the high-frequency acoustic signal. By adjusting the parameters of the filter, the required high-frequency range can be precisely selected.

[0030] 3. Signal Sampling and Holding: The high-frequency signal after filtering is then sampled, converting the continuous signal into discrete sample values. The sampled signal is then held by a holding circuit to maintain each sample value unchanged for a certain period of time for subsequent processing.

[0031] 4. Signal Re-filtering and Amplification: A low-pass filter is used to filter the sampled and held signal again, removing high-frequency components and retaining low-frequency components. The filtered signal is then amplified by a power amplifier, increasing the size of the input small signal.

[0032] 5. Signal Output and Detection: The amplified signal is transmitted to the speaker assembly (6), which converts the high-frequency signal into a low-frequency sound signal that can be heard by the human ear. When the operator hears the low-frequency sound signal emitted by the speaker assembly (6), it proves that the 3D signal generator of the underwater vehicle is working properly, thus completing the initial inspection of the 3D signal generator.

[0033] The beneficial effects of this utility model are:

[0034] 1. This invention improves testing convenience and stability, and simplifies the operation process. The device uses a hydrophone fixing component, which can easily fix the hydrophone to the underwater acoustic transducer, ensuring tight contact and stable fixation, greatly improving the convenience of underwater testing. This invention eliminates the need for operators to hold the hydrophone, avoiding the shaking and unstable contact problems that may occur when holding the hydrophone, ensuring stable and accurate transmission of test signals. Through the integrated functional modules within the device, operators do not need to perform complex parameter settings and waveform interpretation; they can quickly complete the test by ear, greatly simplifying the operation process.

[0035] 2. This utility model is adapted to underwater environment testing, improving testing accuracy. Because this utility model can stably fix the hydrophone onto the underwater acoustic transducer, the underwater vehicle can be placed in an underwater environment for testing, thereby accurately reflecting the true performance of the underwater vehicle product under normal underwater use, meeting the high-quality R&D and application needs of underwater vehicle products.

[0036] 3. This invention reduces testing costs and risks. The convenience, stability, and simplified operation of the equipment reduce the requirements for operators, shorten the training cycle, and lower labor costs. Simultaneously, the equipment avoids the risk of underwater acoustic transducers being damaged by prolonged sound emission in the air during land-based testing, extending the service life of related components of the underwater vehicle and reducing maintenance and replacement costs. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the working state of this utility model;

[0038] Figure 2 This is one of the installation diagrams of this utility model;

[0039] Figure 3 This is the second installation diagram of this utility model;

[0040] Figure 4 This is one of the three-dimensional structural schematic diagrams of this utility model;

[0041] Figure 5 This is the second three-dimensional structural schematic diagram of this utility model;

[0042] Figure 6 This is one of the three-dimensional assembly drawings of this utility model;

[0043] Figure 7 This is the second three-dimensional assembly drawing of this utility model;

[0044] The following labels are used in the diagram: 1—Chassis, 11—Cover plate, 111—Mounting base, 12—Mounting post, 13—Sound outlet; 2—Power cord; 3—Hydrophone, 31—Hydrophone signal cable; 4—Hydrophone fixing assembly, 41—Elastic band, 42—Snap fastener, 43—Card holder; 5—Circuit board assembly, 51—Circuit board holder, 52—Detection function circuit board; 6—Speaker assembly; 7—Underwater vehicle, 71—Sonic transducer. Detailed Implementation

[0045] To make the purpose, technical solution and advantages of this utility model patent clearer, the present utility model patent will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that these descriptions are exemplary only and are not intended to limit the scope of this utility model patent. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concept of this utility model patent.

[0046] Example 1

[0047] In this embodiment, all components are prefabricated in the factory and then assembled according to... Figure 4 — Figure 7 The assembly is complete as shown.

[0048] like Figure 1 — Figure 7 The illustrated rapid detection device for a 3D high-frequency signal generator for underwater vehicles includes a power adapter, a power supply, and further includes:

[0049] The chassis 1 is a rectangular structure with a cover plate 11 on one side and mounting posts 12 at the four corners inside. The cover plate 11 is detachably connected to the chassis 1 by bolts and mounting posts 12. The cover plate 11 has a power cord hole. The chassis 1 also has a hydrophone signal cable hole on another side.

[0050] Power cord 2, which passes through the power cord hole on the cover plate 11 and is connected to the circuit board assembly 5;

[0051] Hydrophone 3, which is connected to hydrophone signal cable 31, and the hydrophone signal cable 31 passes through the hydrophone signal cable hole on the chassis 1 and is connected to the circuit board assembly 5.

[0052] Hydrophone fixing assembly 4 is fixedly connected to the bottom of the hydrophone 3 and the hydrophone signal cable 31.

[0053] Circuit board assembly 5, which is detachably connected to the cover plate 11 of the chassis 1 by bolts;

[0054] The speaker assembly 6 consists of two sets, which are symmetrically fixed to one of the opposite sides of the chassis 1 and connected to the circuit board assembly 5 via cables.

[0055] Specifically, such as Figure 7 As shown, the cover plate 11 has a mounting base 111, which has several bolt holes and a power cord hole.

[0056] Furthermore, such as Figure 1 — Figure 7 As shown, the chassis 1 has a set of opposing surfaces on which the speaker assembly 6 is mounted, with several sound outlet holes 13 distributed in a circular shape.

[0057] Furthermore, such as Figure 3 — Figure 5 , Figure 7 As shown, the hydrophone fixing assembly 4 includes:

[0058] Elastic band 41, the two ends of which pass through the card holder 43 and are detachably connected to the card holder 43 via buckle 42;

[0059] Two buckles 42 are provided, and an elastic band 41 is wrapped around the buckles 42.

[0060] Card holder 43 is fixedly connected to the bottom of hydrophone 3 and to the hydrophone signal cable 31.

[0061] Furthermore, such as Figure 6 , Figure 7 As shown, the circuit board assembly 5 includes:

[0062] The circuit board base 51 is composed of two rectangular plates connected together. One rectangular plate is hollow and has several bolt holes, and the other rectangular plate has connecting studs at its four corners.

[0063] The detection function circuit board 52 comprises several units, which are connected together by connecting studs on the circuit board base 51 and are detachably connected to the circuit board base 51 by the connecting studs. The detection function circuit board 52 includes a filter and a power amplifier.

[0064] In summary, the specific usage process of this utility model is as follows:

[0065] First, such as Figure 2 , Figure 3 As shown, the assembled utility model was brought to the test site, and the elastic band 41 was wrapped around the underwater vehicle 7 once. The tightness of the elastic band 41 was adjusted so that the hydrophone 3 was in close contact with the underwater acoustic transducer 71 and was fastened by the buckle 42 and the bracket 43.

[0066] Furthermore, such as Figure 1 As shown, the underwater vehicle 7 is placed in the test water, ensuring that the hydrophone 3 and the underwater acoustic transducer 71 are completely submerged. Power is then connected via power cord 2 and power adapter, ensuring all components are securely connected before power is turned on. The underwater vehicle's 3D high-frequency signal generator is then activated, causing it to output a signal through the underwater acoustic transducer 71.

[0067] Furthermore, the device acquires the signal output from the underwater acoustic transducer 71 via the hydrophone 3 and transmits it to the circuit board assembly 5. The filter built into the detection function circuit board 52 in the circuit board assembly 5 filters the input signal, removing unwanted frequency components and retaining only the high-frequency acoustic signal. After filtering, the high-frequency signal is sampled and held by the circuit, then filtered again by a low-pass filter to remove the high-frequency components and retain the low-frequency components. The filtered low-frequency signal is then amplified by a power amplifier.

[0068] Furthermore, the amplified low-frequency signal is transmitted to the speaker assembly 6 for output. The operator listens to the sound emitted by the speaker assembly 6. If a low-frequency sound signal is heard, it proves that the 3D signal generator of the underwater vehicle is working properly. If no low-frequency sound signal is heard or the sound signal is very weak, registration, maintenance and testing are required.

[0069] Finally, after completing the preliminary inspection of the 3D signal generator, the underwater vehicle 7 is removed from the water, the hydrophone fixing assembly 4 is released from the underwater vehicle 7 and the underwater acoustic transducer 71, and then the equipment is properly stored for future use.

[0070] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A rapid detection device for a 3D high-frequency signal generator for underwater vehicles, comprising a power adapter and a power supply, characterized in that, It also includes: The chassis (1) is a rectangular structure with one side being a cover plate (11) and four corner mounting posts (12) inside. The cover plate (11) is detachably connected to the chassis (1) by bolts and mounting posts (12). The cover plate (11) has a power cord hole, and the chassis (1) has a hydrophone signal cable hole on another side. Power cord (2), which passes through the power cord hole on the cover plate (11) and is connected to the circuit board assembly (5); Hydrophone (3), the hydrophone (3) is connected to hydrophone signal cable (31), the hydrophone signal cable (31) passes through the hydrophone signal cable hole on the chassis (1) and is connected to the circuit board assembly (5); Hydrophone fixing assembly (4) is fixedly connected to the bottom of the hydrophone (3) and the hydrophone signal cable (31); Circuit board assembly (5), which is detachably connected to the cover plate (11) of the chassis (1) by bolts; The speaker assembly (6) consists of two sets, which are symmetrically fixed to one of the opposite sides of the chassis (1) and connected to the circuit board assembly (5) via cables.

2. The rapid detection device for a 3D high-frequency signal generator for underwater vehicles according to claim 1, characterized in that, The cover plate (11) has a mounting base (111) with several bolt holes and a power cord hole.

3. The rapid detection device for a 3D high-frequency signal generator for underwater vehicles according to claim 1, characterized in that, The chassis (1) has a set of opposing surfaces on which the speaker assembly (6) is mounted, and several sound holes (13) are distributed in a circular pattern.

4. The rapid detection device for a 3D high-frequency signal generator for underwater vehicles according to claim 1, characterized in that, The hydrophone fixing assembly (4) includes: An elastic band (41) has its two ends passing through a card holder (43) and being detachably connected to the card holder (43) via a buckle (42); Buckle (42), there are two buckles (42), and elastic band (41) is wrapped around buckle (42); Card holder (43) is fixedly connected to the bottom of the hydrophone (3) and the hydrophone signal cable (31).

5. A rapid detection device for a 3D high-frequency signal generator for underwater vehicles according to claim 1, characterized in that, The circuit board assembly (5) includes: The circuit board base (51) is composed of two rectangular plates connected together. One rectangular plate is hollow and has several bolt holes, and the other rectangular plate has connecting studs at the four corners. The detection function circuit board (52) consists of several pieces, which are connected together by connecting studs on the circuit board base (51) and are detachably connected to the circuit board base (51) by the connecting studs.

6. A rapid detection device for a 3D high-frequency signal generator for underwater vehicles according to claim 5, characterized in that, The detection function circuit board (52) includes a filter and a power amplifier.

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