A synchronous proximity recording device for ocean wind noise sources and its application

Abstract

The present invention discloses a synchronous proximity recording device for an ocean noise source, including a floating pad, a mounting plate, a chain, a weight plate, a fixed block, a bracket, a support rod, a signal processing component, a stopper, a solar panel, a weight ball, a sleeve, and a vertical rod. The inner walls on both sides of the top of the floating pad are fixedly connected with fixed blocks, the fixed blocks are connected with a bracket, the top outer wall of the bracket is provided with an arc groove, the inner wall of the arc groove is fixed with a cross bar, the outer wall of the cross bar is movably connected with a sleeve, the top outer wall of the sleeve is fixed with a support rod, the bottom outer wall of the sleeve is fixed with a vertical rod, and the bottom of the vertical rod is connected with a weight ball. The structure of the present invention is movable to prevent fracture due to excessive force, and the weight ball and the weight plate buffer and offset the shaking force, thereby improving the accuracy of the recording device.

Description

Technical Field

[0001] The present invention relates to the technical field of ocean monitoring, and in particular to a synchronous proximity recording device for an ocean wind-generated noise source and an application thereof. Background Art

[0002] In the marine environment, sound waves are the main means of detection, tracking, underwater acoustic communication, navigation, positioning, underwater remote control, etc. On the one hand, it can be known from the sonar equation that ocean noise is the interference background field of various sonars, and the performance of the sonar system is directly restricted by ocean noise; on the other hand, ocean noise contains a lot of information about sea surface conditions, ship information, the structural process of the seabed, the behavior of marine vocal animals, etc., and various information about the sea surface, seawater and seabed can be inverted from ocean noise data.

[0003] Ocean noise sources are generally monitored through recording devices, which have extremely high requirements for their endurance and recording accuracy.

[0004] After analysis, the existing synchronous proximity recording device for ocean noise sources still has the following defects:

[0005] Its ocean noise source is synchronized with the low accuracy of the wind speed sensor of the adjacent recording device.

[0006] The ocean noise source synchronous proximity recording device has poor endurance and is not capable of long-term operation.

[0007] The synchronous recovery and positioning of the adjacent recording device of its ocean noise source is poor. Summary of the invention

[0008] To this end, the object of the present invention is to provide a synchronous proximity recording device for ocean wind noise sources, which has a high sensor accuracy, a long endurance, and is capable of self-recovery.

[0009] In order to achieve the above object, the present invention adopts the following technical solutions:

[0010] 1. A synchronous proximity recording device for an ocean wind noise source, comprising a floating pad (1), a mounting plate (2), a chain (3), a weight plate (4), a fixing block (5), a bracket (6), a support rod (8), a signal processing component, a stopper, a solar panel (11), a weight ball (14), a casing (15), and a vertical rod (16).

[0011] The inner walls of both sides of the top of the floating cushion (1) are fixedly connected with fixed blocks (5), the other side of the fixed block (5) is connected with a bracket (6), the outer wall of the top of the bracket (6) is provided with an arc groove, the outer wall of the cross bar is movably connected with a sleeve (15), the opposite sides of the top outer wall of the bracket (6) are respectively provided with opposite circular holes, the inner wall of the arc groove is fixed with a cross bar through the opposite circular holes, and the sleeve (15) is movably connected with the bracket (6) through the cross bar; the sleeve (15) ) is fixedly connected to a support rod (8) on the top outer wall, a vertical rod (16) is fixedly connected to the bottom outer wall of the sleeve (15), a weight-bearing ball (14) is connected to the bottom of the vertical rod (16), a mounting plate (2) is fixedly connected to the outer walls on both sides of the bottom of the floating pad (1), a mounting groove is provided on the bottom outer wall of the mounting plate (2), a chain (3) is provided on the inner wall of the mounting groove, a weight-bearing plate (4) is connected to the bottom outer wall of the chain (3), and a signal processing component is installed on the top outer wall of the support rod (8);

[0012] A groove is provided on the outer wall of one side of the bracket (6), and a positioning chip (13) is installed in the groove; a solar panel (11) is provided on the outer wall of the support rod (8); a stopper is provided on the top of the bracket (6), and the stopper is adapted to the size of the support rod (8) and the solar panel (11), so that the stopper does not contact any component of the solar panel (11), so that the support rod (8) can only move within the plane limited by the stopper, and the connecting line of the two mounting plates at the bottom of the floating pad is not parallel to the plane; a drainage groove (17) is provided on the outer wall of the bottom end of the floating pad (1), and the drainage groove (17) is adapted to the position of the bracket (6) so that water accumulated on the top of the floating pad (1) can be discharged.

[0013] Preferably, the signal processing component comprises: a receiver (9) for receiving hydrophone signals, a wind speed sensor (10) being installed on the top of the receiver (9).

[0014] Preferably, the specific connection method of the weight-bearing ball (14), the sleeve (15) and the vertical rod (16) is as follows: a rectangular hole is opened on the outer wall of one side of the bottom of the sleeve (15), and a rectangular hole is also provided on the top of the weight-bearing ball (14). The top size of the vertical rod (16) is matched with the size of the rectangular hole at the bottom of the sleeve (15), and the bottom size of the vertical rod (16) is matched with the size of the rectangular hole at the top of the weight-bearing ball (14), so that the vertical rod (16) is fixedly connected to the weight-bearing ball (14).

[0015] Preferably, the structure of the limiter is as follows: a pair of mutually parallel arc-shaped rods (7) are fixedly connected to the top of the bracket (6); the support rod (8) passes through the middle of the pair of mutually parallel arc-shaped rods (7); any arc-shaped rod (7) does not contact any component in the solar cell panel (11); and the pair of arc-shaped rods (7) limit the movement of the support rod (8) in a plane clamped by the pair of mutually parallel arc-shaped rods (7).

[0016] Preferably, a backup battery (12) is provided inside the support rod (8).

[0017] Preferably, the floating pad (1) is arranged in a U-shape, and the sum of the weights of the weight-bearing ball (14) and the vertical rod (16) is greater than the sum of the support rod (8), the solar cell panel (11), and the signal processing component.

[0018] The present invention also provides a method for optimizing ocean noise level measurement by using the ocean wind noise source synchronous proximity recording device, comprising the following steps:

[0019] S1, using the ocean wind noise source to synchronously measure the time series data of the sea surface wind speed with a nearby recording device, and using a standard instrument to measure the time series data of the standard ocean noise level;

[0020] S2. Obtain the correlation between the time series data of sea surface wind speed and the time series data of standard ocean noise level through machine learning method;

[0021] S3. On the sea surface to be tested, the ocean wind noise source is synchronously connected to a recording device to measure the sea surface wind speed and the ocean noise level, and the sea surface wind speed is used to correct the measured ocean noise level according to the correlation relationship to obtain an updated ocean noise level. The present invention has the following characteristics and beneficial effects:

[0022] (1) The synchronous proximity recording device for ocean noise source is provided with a floating pad, a bracket, a support rod, a sleeve, a wind speed sensor, a vertical rod, a weight ball, a chain and a weight plate. The floating pad floats on the sea surface and is arranged in a U-shape so as not to tip over easily. The receiver and the wind speed sensor connected to the support rod will shake with the shaking of the floating pad during the measurement process. When the sleeve is driven to rotate, the vertical rod and the weight ball at the bottom stabilize the center of gravity and offset the shaking force. At the same time, the chain and the weight plate connected to the mounting plate at the bottom of the floating pad further reduce the shaking of the wind speed sensor and improve the accuracy of the wind speed sensor. As the wind speed increases, the wave height of the water surface increases accordingly, so the roughness of the water surface increases, which hinders the air flow on the water surface and forms a turbulent velocity component, thereby affecting the accuracy of the wind speed sensor.

[0023] The arc-shaped rod on the top of the bracket limits the movement of the support rod. The movable structure prevents breakage due to excessive force, and the weight-bearing ball and weight-bearing plate buffer and offset the shaking force, thereby improving the stability of the structure, avoiding overturning and sinking in strong winds and waves, and improving the efficiency of the recording device.

[0024] (2) The device for synchronously recording the proximity of an ocean noise source is provided with solar panels. During use, the solar panels on both sides of the support rod can absorb solar energy to increase the endurance of the device, thereby improving the endurance of the recording device.

[0025] (3) The synchronous proximity recording device for ocean noise sources is provided with a drainage ditch and a positioning chip. The drainage ditch at the bottom of the floating pad can reduce the weight while facilitating the drainage of water accumulated on the top of the floating pad. The positioning chip on one side of the bracket facilitates the positioning of the device, thereby improving the practicality of the recording device.

[0026] (4) After improving the accuracy of the wind speed sensor, the data obtained by the higher-precision wind speed sensor can be used to correct the noise level in the ocean obtained by the receiver through wind speed inversion and ocean noise level inversion, thereby improving the accuracy of the output signal of the device.

[0027] (4) The synchronous recording device for the ocean noise source obtains accurate wind speed values ​​through the wind speed sensor. Since the logarithm of the ocean noise level and the wind speed satisfies a certain linear relationship, when the detection data of the ocean noise level and wind speed in a certain sea area are obtained synchronously, the relationship between the ocean noise level and the logarithmic wind speed in the sea area can be determined when enough data is obtained, and the accurate value of the wind speed can be obtained by using the segmented inversion method, which can be used as the experience knowledge of wind speed inversion and ocean noise level inversion in the future ocean research field. Based on the above data analysis, the measurement of ocean noise level is further optimized to obtain more reliable measurement results.

[0028] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the specific implementation or the prior art description. Some specific embodiments of the present invention will be described in detail in an exemplary but not restrictive manner with reference to the drawings. The same reference numerals in the drawings indicate the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0030] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0031] Figure 2 A schematic diagram of a measurement stabilization structure according to an embodiment of the present invention;

[0032] Figure 3 A schematic diagram of a casing connection structure according to an embodiment of the present invention;

[0033] Figure 4 It is a schematic diagram of the bottom of the floating cushion structure according to an embodiment of the present invention.

[0034] Figure numerals: 1. Floating pad; 2. Mounting plate; 3. Chain; 4. Load-bearing plate; 5. Fixed block; 6. Bracket; 7. Arc rod; 8. Support rod; 9. Receiver; 10. Wind speed sensor; 11. Solar panel; 12. Backup battery; 13. Positioning chip; 14. Load-bearing ball; 15. Casing; 16. Vertical rod; 17. Drainage trough. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0038] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0039] A synchronous proximity recording device for an ocean wind noise source comprises a floating pad 1, wherein the inner walls on both sides of the top of the floating pad 1 are fixedly connected with a fixing block 5, the other side of the fixing block (5) is connected with a bracket (6), the top outer wall of the bracket (6) is provided with an arc groove, the outer wall of a cross bar is movably connected with a sleeve (15), the top outer wall of the bracket (6) is provided with opposite circular holes on the opposite sides, the inner wall of the arc groove is fixed with a cross bar through the opposite circular holes, and the sleeve (15) is movably connected with the bracket (6) through the cross bar; the top outer wall of the sleeve 15 is fixedly connected with a support rod 8, the bottom outer wall of the sleeve 15 is fixedly connected with a vertical rod 16, the bottom outer wall of the vertical rod 16 is connected with a weight ball 14, the outer walls on both sides of the bottom of the floating pad 1 are fixedly connected with a mounting plate 2, the bottom outer wall of the mounting plate 2 is provided with a mounting groove, the inner wall of the mounting groove is provided with a chain 3, the bottom outer wall of the chain 3 is connected with a weight plate 4, and the top outer wall of the support rod 8 is provided with a receiver 9.

[0040] Among them, a wind speed sensor 10 is installed on the top outer wall of the receiver 9, a rectangular hole is opened on one side of the outer wall at the bottom of the sleeve 15, a rectangular hole is also opened on the top of the weight ball 14, the top size of the vertical rod 16 is matched with the size of the rectangular hole at the bottom of the sleeve 15, and the bottom size of the vertical rod 16 is matched with the size of the rectangular hole at the top of the weight ball 14. A groove is opened on one side of the outer wall of the bracket 6, and a positioning chip 13 is installed in the groove. A backup battery 12 is embedded in the support rod 8, which can play its power supply role when the solar panel 11 loses its function. The outer wall of the support rod 8 is provided with a solar panel 11. The outer walls on both sides of the top of the bracket 6 are fixed with an arc rod 7, and the arc rod 7 is matched with the size of the support rod 8 and the solar panel 11, so that the arc rod 7 does not contact any component in the solar panel 11 to avoid friction, and at the same time, it plays a limiting role in the movement of the support rod 8. The outer wall of the bottom end of the floating pad 1 is provided with a drainage groove 17, which is adapted to the position of the bracket 6, so that the weight can be reduced and the water on the top of the floating pad 1 can be easily discharged. The floating pad 1 is arranged in a U shape, and the sum of the weight of the weight ball 14 and the vertical rod 16 is greater than the sum of the support rod 8, the solar panel 11, the wind speed sensor 10 and the receiver 9.

[0041] When it is necessary to use an ocean noise source to synchronize the adjacent recording device, the floating pad 1 floats on the sea surface, and the U-shaped setting is not easy to roll over. The receiver 9 and the wind speed sensor 10 connected to the support rod 8 will shake with the shaking of the floating pad 1 during the measurement process. While the casing 15 is driven to rotate, the vertical rod 16 and the weight ball 14 at the bottom stabilize the center of gravity and offset the shaking force. At the same time, the chain 3 and the weight plate 4 connected to the mounting plate 2 at the bottom of the floating pad 1 further improve the structural stability. Improving the stability of the overall structure is beneficial to the measurement accuracy of the wind speed sensor 10. The arc rod 7 at the top of the bracket 6 supports the support The movement of the support rod 8 is limited. During use, the solar panel 11 on the support rod 8 can absorb solar energy to improve the endurance of the device. The drainage groove 17 opened at the bottom of the floating pad 1 can facilitate the discharge of water on the top of the floating pad 1 while reducing weight. The positioning chip 13 on one side of the bracket 6 is convenient for positioning the device. The result after the wind speed sensor 10 is measured can be correlated with the ocean noise level measured by the ocean hydrophone obtained by the receiver 9, and then the wind speed inversion or ocean noise level inversion research work of the sea area can be carried out, which plays a certain role in the field of ocean hydroacoustic research. The wind speed sensor is used to obtain accurate wind speed values, and because the ocean environmental noise level and the logarithm of the wind speed meet a certain linear relationship, when the detection data of the ocean noise level and wind speed of a certain sea area are obtained simultaneously, the relationship between the environmental noise level of the sea area and the logarithmic wind speed can be determined when enough data is obtained, and the accurate value of the wind speed can be obtained by the segmented inversion method, which can be used as the experience knowledge of wind speed inversion and ocean noise level inversion in the field of future ocean research.

[0042] The method for optimizing the measurement of ocean noise level by using the synchronous proximity recording device for ocean wind noise source comprises the following steps:

[0043] S1, using the ocean wind noise source to synchronously measure the time series data of the sea surface wind speed with a nearby recording device, and using a standard instrument to measure the time series data of the standard ocean noise level;

[0044] S2. Obtain the correlation between the time series data of sea surface wind speed and the time series data of standard ocean noise level through machine learning method;

[0045] S3. On the sea surface to be tested, the ocean wind noise source is used to synchronously record the adjacent recording device to measure the sea surface wind speed and the ocean noise level, and the sea surface wind speed is used to correct the measured ocean noise level according to the correlation relationship to obtain an updated ocean noise level.

[0046] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments including components are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A synchronous proximity recording device for ocean wind noise sources, characterized in that: It comprises a floating pad (1), a mounting plate (2), a chain (3), a load-bearing plate (4), a fixing block (5), a bracket (6), a support rod (8), a signal processing component, a stopper, a solar cell panel (11), a load-bearing ball (14), a sleeve (15), and a vertical rod (16). The inner walls of both sides of the top of the floating cushion (1) are fixedly connected with fixed blocks (5), the other side of the fixed block (5) is connected with a bracket (6), the outer wall of the top of the bracket (6) is provided with an arc groove, the outer wall of the cross bar is movably connected with a sleeve (15), the opposite sides of the top outer wall of the bracket (6) are respectively provided with opposite circular holes, the inner wall of the arc groove is fixed with a cross bar through the opposite circular holes, and the sleeve (15) is movably connected with the bracket (6) through the cross bar; the sleeve (15) ) is fixedly connected to a support rod (8) on the top outer wall, a vertical rod (16) is fixedly connected to the bottom outer wall of the sleeve (15), a weight-bearing ball (14) is connected to the bottom of the vertical rod (16), a mounting plate (2) is fixedly connected to the outer walls on both sides of the bottom of the floating pad (1), a mounting groove is provided on the bottom outer wall of the mounting plate (2), a chain (3) is provided on the inner wall of the mounting groove, a weight-bearing plate (4) is connected to the bottom outer wall of the chain (3), and a signal processing component is installed on the top outer wall of the support rod (8); A groove is provided on the outer wall of one side of the bracket (6), and a positioning chip (13) is installed in the groove; a solar panel (11) is provided on the outer wall of the support rod (8); a stopper is provided on the top of the bracket (6), and the stopper is adapted to the size of the support rod (8) and the solar panel (11), so that the stopper does not contact any component of the solar panel (11), so that the support rod (8) can only move within the plane limited by the stopper, and the connecting line of the two mounting plates at the bottom of the floating pad is not parallel to the plane; a drainage groove (17) is provided on the outer wall of the bottom end of the floating pad (1), and the drainage groove (17) is adapted to the position of the bracket (6) so that the floating pad (1) draining the water accumulated on the top; the signal processing component comprises: a receiver (9) for receiving hydrophone signals, a wind speed sensor (10) being installed on the top of the receiver (9); the specific connection method of the weighted ball (14), the sleeve (15) and the vertical rod (16) is as follows: a rectangular hole is opened on the outer wall of one side of the bottom of the sleeve (15), and a rectangular hole is also provided on the top of the weighted ball (14); the top size of the vertical rod (16) is matched with the size of the rectangular hole at the bottom of the sleeve (15), and the bottom size of the vertical rod (16) is matched with the size of the rectangular hole at the top of the weighted ball (14), so that the vertical rod (16) is fixedly connected to the weighted ball (14); The structure of the limiter is as follows: a pair of mutually parallel arc-shaped rods (7) are fixedly connected to the top of the bracket (6); the support rod (8) passes through the middle of the pair of mutually parallel arc-shaped rods (7); any arc-shaped rod (7) does not contact any component in the solar cell panel (11); and the pair of arc-shaped rods (7) limit the movement of the support rod (8) in a plane clamped by the pair of mutually parallel arc-shaped rods (7).

2. The synchronous proximity recording device for ocean wind noise sources according to claim 1, characterized in that: A backup battery (12) is arranged inside the support rod (8).

3. The synchronous proximity recording device for ocean wind noise source according to claim 1, characterized in that: The floating pad (1) is arranged in a U shape, and the sum of the weight of the weight-bearing ball (14) and the vertical rod (16) is greater than the sum of the support rod (8), the solar cell panel (11), and the signal processing component.

4. A method for optimizing ocean noise level measurement using the synchronous proximity recording device for ocean wind noise sources as claimed in any one of claims 1 to 3, characterized in that: The following steps are involved: S1, using the ocean wind noise source to synchronously measure the time series data of the sea surface wind speed with a nearby recording device, and using a standard instrument to measure the time series data of the standard ocean noise level; S2. Obtain the correlation between the time series data of sea surface wind speed and the time series data of standard ocean noise level through machine learning method; S3. On the sea surface to be tested, the ocean wind noise source is used to synchronously record the adjacent recording device to measure the sea surface wind speed and the ocean noise level, and the sea surface wind speed is used to correct the measured ocean noise level according to the correlation relationship to obtain an updated ocean noise level.

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