Underwater velocimeter, acoustic transponder thereof and underwater vehicle
By designing the structure of the noise reduction seat and transponder body in the acoustic transponder of the underwater speedometer, the weight and cost problems caused by the use of shell metal are solved, and noise reduction and accuracy improvement are achieved.
Patent Information
- Application Number
- CN202421376656.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-06-17
AI Technical Summary
The shell of the existing underwater speedometer is made of metal with high conductivity, resulting in larger weight and higher cost, and noise interference affects measurement accuracy.
An acoustic transponder is designed, including a noise reduction base and a transponder body. The transponder body part is arranged in the accommodating cavity of the noise reduction base. The response end is exposed through the response port, and the noise reduction base is used to reduce the useless signal strength in the echo signal to achieve noise reduction effect.
The noise reduction is achieved through the noise reduction seat, avoiding the use of metal with high conductivity in the housing, reducing the weight of the underwater speedometer, and maintaining measurement accuracy.
Smart Images
Figure CN223051513U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of underwater vehicles, and more particularly to an underwater speedometer, its acoustic transponder, and an underwater vehicle. Background Art
[0002] During the underwater movement of an underwater vehicle, it is necessary to obtain the speed of the vehicle relative to the seabed through a speedometer. Currently, the speedometer mainly achieves this through acoustic detection. Acoustic detection is carried out by emitting acoustic wave signals and receiving the echo signals formed by the reflection of the acoustic wave signals after encountering underwater targets. Finally, the speed of the vehicle relative to the seabed is measured through the echo signals formed by the reflection. However, the echo signals usually contain interference and useless signals other than the useful signals, that is, noise, which will affect the final measurement result and lead to inaccurate measurement results.
[0003] In the prior art, the general method is that the housing of the speedometer is made of metal with a relatively high conductivity, so as to reduce the noise intensity in the form of electrical shielding and reduce or even eliminate the influence of noise on the measurement result. However, this method will result in a relatively large overall weight and high cost of the speedometer. Summary of the Utility Model
[0004] This application mainly provides an underwater speedometer, its acoustic transponder, and an underwater vehicle, which can reduce the weight and cost of the underwater speedometer.
[0005] To solve the above technical problems, one technical solution adopted in this application is to provide an acoustic transponder for an underwater speedometer. The acoustic transponder includes a noise reduction seat and a transponder body. The noise reduction seat is formed with a first accommodation cavity and a first response port communicating with the first accommodation cavity. At least a part of the transponder body is disposed in the first accommodation cavity, so that the response end of the transponder body is exposed outside the noise reduction seat through the first response port.
[0006] In a specific embodiment, the noise reduction seat is further formed with a wiring port communicating with the first accommodation cavity.
[0007] In a specific embodiment, the noise reduction seat includes a peripheral side wall and a bottom wall. The peripheral side wall is formed with the first accommodation cavity and the first response port. The bottom wall is connected to the peripheral side wall, and the peripheral side wall and / or the bottom wall are formed with the wiring port.
[0008] In a specific embodiment, the end face of the response end is flush with the first response port.
[0009] In a specific embodiment, the noise reduction base is further formed with an opening communicating with the first accommodating cavity. A part of the transponder body close to the response end is disposed in the first accommodating cavity, and a part of the transponder body away from the response end extends out of the first accommodating cavity through the opening.
[0010] In a specific embodiment, the noise reduction base includes a first noise reduction body and a second noise reduction body. The first noise reduction body is formed with the first accommodating cavity, the first response port and the opening. The second noise reduction body is disposed around the part of the transponder body extending out of the first accommodating cavity and is spaced apart from the first noise reduction body.
[0011] In a specific embodiment, the noise reduction base further includes a strengthening body. The strengthening body is disposed between the first noise reduction body and the second noise reduction body and is respectively connected to the first noise reduction body and the second noise reduction body.
[0012] To solve the above technical problems, another technical solution adopted by the present application is: to provide an underwater speedometer, the underwater speedometer includes a housing and at least two of the acoustic transponders. The housing is formed with second accommodating cavities having the same number as the acoustic transponders and second response ports communicating with the second accommodating cavities. At least a part of the noise reduction base is disposed in the second accommodating cavity, and the response end of the transponder body is exposed outside the housing through the second response port.
[0013] In a specific embodiment, the noise reduction base includes an end face disposed on a side facing the opening direction of the second response port, and the end face is exposed outside the housing.
[0014] To solve the above technical problems, yet another technical solution adopted by the present application is: to provide an underwater vehicle, the underwater vehicle includes a vehicle body and the underwater speedometer, and the housing is mounted on the vehicle body.
[0015] The beneficial effects of the present application are as follows: Different from the prior art, the acoustic transponder for an underwater speedometer provided by the present application includes a noise reduction base and a transponder body. The noise reduction base is formed with a first accommodation cavity and a first response port communicating with the first accommodation cavity. At least a part of the transponder body is disposed in the first accommodation cavity, so that the response end of the transponder body is exposed outside the noise reduction base through the first response port. When the response end receives an echo signal, the noise reduction base can reduce the signal intensity of the useless signal in the echo signal to achieve the purpose of noise reduction. That is, through this setting method, the acoustic transponder in this embodiment can achieve noise reduction by itself. Compared with the prior art, there is no need to reduce noise through the housing of the underwater speedometer. Therefore, the housing of the underwater speedometer does not need to be made of metals such as copper, aluminum, and iron with high conductivity. For example, it can be made of plastic, which reduces the weight of the underwater speedometer and the cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0017] Figure 1 is a schematic three-dimensional assembly structure diagram of an embodiment of the acoustic transponder for an underwater speedometer provided by the present application;
[0018] Figure 2 is Figure 1 a schematic three-dimensional exploded structure diagram of the acoustic transponder in;
[0019] Figure 3 is Figure 1 a schematic cross-sectional diagram of the acoustic transponder in along the F1-F1 direction;
[0020] Figure 4 is Figure 3 a schematic cross-sectional diagram of the noise reduction base in;
[0021] Figure 5 is Figure 3 a schematic cross-sectional diagram of the transponder body in;
[0022] Figure 6 is a schematic three-dimensional assembly structure diagram of another embodiment of the acoustic transponder provided by the present application;
[0023] Figure 7 is Figure 6 a schematic cross-sectional diagram of the acoustic transponder in along the F2-F2 direction;
[0024] Figure 8 isFigure 7 Cross-sectional schematic diagram of the noise reduction seat in the middle
[0025] Figure 9 is Figure 6 Schematic three-dimensional structure diagram of another embodiment of the noise reduction seat in the middle
[0026] Figure 10 Schematic three-dimensional assembly structure diagram of the underwater speedometer provided by the present application
[0027] Figure 11 is Figure 10 Cross-sectional schematic diagram of the underwater speedometer in the middle along the F3-F3 direction
[0028] Figure 12 is Figure 11 Cross-sectional schematic diagram of the housing in the middle Specific embodiments
[0029] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be specifically noted that the following embodiments are only used to illustrate the present application, but do not limit the scope of the present application. Similarly, the following embodiments are only partial embodiments of the present application rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present application.
[0030] The terms "first", "second", and "third" in the present application are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", and "third" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined. All directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally further include unlisted steps or units, or may optionally further include other steps or units inherent to these processes, methods, products, or devices.
[0031] Reference to "embodiment" in this application means that the specific features, structures, or characteristics described in connection with the embodiment may be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.
[0032] Please refer to Figure 1 and Figure 2 , Figure 1 FIG. is a schematic diagram of a three-dimensional assembly structure of an acoustic transponder 10 for an underwater speedometer provided by the present application. Figure 2 is Figure 1 a schematic diagram of a three-dimensional exploded structure of the acoustic transponder 10 in FIG.. The acoustic transponder 10 in this embodiment includes a noise reduction base 11 and a transponder body 12.
[0033] Please refer to Figure 3 , Figure 4 and Figure 5 , Figure 3 is Figure 1 a schematic cross-sectional view of the acoustic transponder 10 in FIG. along the F1-F1 direction. Figure 4 is Figure 3 a schematic cross-sectional view of the noise reduction base 11 in FIG.. Figure 5 is Figure 3 a schematic cross-sectional view of the transponder body 12 in FIG.. The noise reduction base 11 is formed with a first accommodation cavity 101 and a first response port 102. The first response port 102 communicates with the first accommodation cavity 101. In practical applications, the noise reduction base 11 can be made of metals such as copper, aluminum, and iron with relatively high conductivity, so as to reduce the noise intensity in the form of electrical shielding and achieve the purpose of noise reduction.
[0034] Furthermore, at least a part of the transponder body 12 is disposed in the first accommodation cavity 101, so that the response end 12a of the transponder body 12 is exposed outside the noise reduction base 11 through the first response port 102.
[0035] Specifically, the transponder body 12 includes a response end 12a and a wiring end 12b. The response end 12a can emit acoustic wave signals into the water. When the acoustic wave signals encounter an underwater target, they are reflected to form echo signals, and then the response end 12a receives the echo signals. In this embodiment, the transponder body 12 is at least partially disposed in the first accommodation cavity 101, so that the response end 12a of the transponder body 12 is exposed outside the noise reduction seat 11 through the first response port 102. When the response end 12a receives the echo signal, the noise reduction seat 11 can reduce the signal intensity of the useless signals in the echo signal to achieve the purpose of noise reduction. That is, through this setting method, the acoustic transponder 10 in this embodiment can achieve noise reduction by itself. Compared with the prior art, there is no need to reduce noise through the housing of the underwater speedometer, so that the housing of the underwater speedometer does not need to be made of metals such as copper, aluminum, and iron with high conductivity. For example, it can be made of plastic, reducing the weight and cost of the underwater speedometer.
[0036] Among them, the end face of the response end 12a is flush with the first response port 102, making the acoustic transponder 10 in this embodiment more aesthetically pleasing.
[0037] Further refer to Figure 2 、 Figure 3 and Figure 4 . The noise reduction seat 11 further forms a wiring port 103 communicating with the first accommodation cavity 101. When the wiring end 12b is connected to a wire, the wire can be led out through the wiring port 103.
[0038] Specifically, the noise reduction seat 11 includes a peripheral side wall 111 and a bottom wall 112. The peripheral side wall 111 forms the first accommodation cavity 101 and the first response port 102. The bottom wall 112 is connected to the peripheral side wall 111, and the bottom wall 112.
[0039] Among them, the peripheral side wall 111 and / or the bottom wall 112 form the wiring port 103. In this embodiment, taking the bottom wall 112 forming the wiring port 103 as an example, since the response end 12a and the wiring end 12b of the transponder body 12 are respectively located on opposite sides of the transponder body 12 in this embodiment, therefore, the first response port 102 and the wiring port 103 are respectively disposed on opposite sides of the first accommodation cavity 101, improving the convenience of leading out the wire connected to the wiring end 12b from the wiring port 103.
[0040] Please refer to Figure 6 、 Figure 7 and Figure 8 . Figure 6 is a three-dimensional assembly structure schematic diagram of another embodiment of the acoustic transponder 20 provided by the present application. Figure 7 is Figure 6 The cross-sectional schematic diagram of the acoustic transponder 20 in Figure 8 isFigure 7 Schematic cross-sectional view of the noise reduction base 21. In this embodiment, the acoustic transponder 20 includes a noise reduction base 21 and a transponder body 22. The transponder body 22 is the same as the transponder body 12 in the above embodiment and will not be described in detail here.
[0041] Among them, the noise reduction base 21 in this embodiment forms the first accommodation cavity 101 and the first response port 102 in the above embodiment, and also forms an opening 201 communicating with the first accommodation cavity 101. The part of the transponder body 22 close to the response end 12a is arranged in the first accommodation cavity 101, and the part of the transponder body 22 far from the response end 12a extends out of the first accommodation cavity 101 through the opening 201. In this embodiment, that is, the part of the transponder body 22 close to the connection terminal 12b extends out of the first accommodation cavity 101 through the opening 201. Through this setting method, the wire connected to the connection terminal 12b can be directly led out without perforation operation, improving convenience.
[0042] Please refer to Figure 9 , Figure 9 is Figure 6 Schematic three-dimensional structure view of another embodiment of the noise reduction base 21. In this other embodiment, the noise reduction base 21 includes a first noise reduction body 211 and a second noise reduction body 212. The first noise reduction body 211 forms a first accommodation cavity 101, a first response port 102 and an opening 201. The second noise reduction body 211 is arranged around the part of the transponder body 22 extending out of the first accommodation cavity 101 and is spaced from the first noise reduction body 211. Through this setting method, the electrical shielding space of the noise reduction base 21 is improved, thereby improving the noise reduction effect. At the same time, it can also reduce the material used for the noise reduction base 21 and reduce the weight of the noise reduction base 21.
[0043] Optionally, the noise reduction base 21 further includes a strengthening body 213. The strengthening body 213 is arranged between the first noise reduction body 211 and the second noise reduction body 212 and is respectively connected to the first noise reduction body 211 and the second noise reduction body 212. Through this setting method, the overall structural strength of the noise reduction base 21 is strengthened.
[0044] Optionally, in this embodiment, the number of the strengthening bodies 213 is multiple, and two adjacent ones among the multiple strengthening bodies 213 are spaced apart.
[0045] During the actual assembly process, after the transponder body 22 is installed in the noise reduction base 21, a potting operation is usually performed to ensure that the transponder body 22 will not easily separate from the noise reduction base 21. In addition, a potting operation is also performed on the response end 12a of the transponder body 22 to further enhance its service life.
[0046] Please refer to Figure 10 , Figure 11 andFigure 12 , Figure 10 is a schematic three-dimensional assembly structure diagram of an underwater speedometer 30 according to an embodiment provided by the present application, Figure 11 and Figure 10 is a schematic cross-sectional view of the underwater speedometer 30 along the F3-F3 direction, Figure 12 and Figure 11 is a schematic cross-sectional view of the housing. The underwater speedometer 30 in this embodiment includes a housing 31 and at least two acoustic transponders in any of the above embodiments. In this embodiment, the acoustic transponder 10 is taken as an example.
[0047] Among them, the housing 31 is formed with second accommodation cavities 301 having the same number as the acoustic transponders 10 and second response ports 302 communicating with the second accommodation cavities 301. The noise reduction base 11 is at least partially disposed in the second accommodation cavities 301 so that the response end 12a of the transponder body 12 is exposed outside the housing 31 through the second response ports 302. In other embodiments, the second accommodation cavity may also be embodied as a specific form of opening holes in the housing, that is, the opening holes in the housing may also be understood as the second response ports, and the response end of the transponder body is exposed outside the housing through the above-mentioned opening holes.
[0048] Furthermore, the noise reduction base 11 includes an end face 11a facing the opening direction of the second response port 302, that is, facing one side of direction A or direction B as shown in Figure 11 . The end face 11a is exposed outside the housing 31. That is, in this embodiment, the end face 11a of the noise reduction base 11 and the response end 12a of the transponder body 12 are both exposed outside the housing 31. Through this setting method, since the end face 11a of the noise reducer 11 is exposed outside the housing 31 and is in direct contact with the underwater environment in the working state to form a ground connection, the underwater speedometer 30 in this embodiment does not need to achieve the purpose of noise reduction through the housing 31 in the working state, and the material of the housing 31 of the underwater speedometer does not need to be prepared with metals such as copper, aluminum, and iron with relatively high conductivity. For example, non-metallic materials such as plastics can also be used for preparation, which not only reduces the weight of the underwater speedometer but also reduces the manufacturing cost.
[0049] Four acoustic transponders 10 are shown in the underwater speedometer 30 provided in this embodiment. It can be understood that in actual applications, the specific structural form of the housing 31, the number, installation position, and arrangement method of the acoustic transponders 10 can be set according to actual needs, but the number should be at least two.
[0050] An embodiment of the present application further provides an underwater vehicle, which includes a vehicle body and the underwater speedometer 30 in the above embodiment. The housing 31 of the underwater speedometer 30 is installed on the vehicle body. The vehicle body can perform operations such as moving forward, backward, floating, or diving underwater, so that the underwater speedometer 30 can complete speed measurement and / or distance measurement during these operations.
[0051] The beneficial effect of the present application is: Different from the prior art, the acoustic transponder for an underwater speedometer provided by the present application includes a noise reduction seat and a transponder body. The noise reduction seat is formed with a first accommodation cavity and a first response port communicating with the first accommodation cavity. At least part of the transponder body is disposed in the first accommodation cavity, so that the response end of the transponder body is exposed outside the noise reduction seat through the first response port. When the response end receives an echo signal, the noise reduction seat can reduce the signal intensity of the useless signal in the echo signal to achieve the purpose of noise reduction. That is, through this setting method, the acoustic transponder in this embodiment can achieve noise reduction itself. Compared with the prior art, there is no need to reduce noise through the housing of the underwater speedometer. Therefore, the housing of the underwater speedometer does not need to be made of metals such as copper, aluminum, and iron with high conductivity, and can be made of plastic, for example, which reduces the weight of the underwater speedometer and reduces the cost.
[0052] The above are only some embodiments of the present application, and thus do not limit the protection scope of the present application. Any equivalent device or equivalent process transformation made by using the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present application.
Claims
1. An acoustic transponder for an underwater speedometer, characterized in that: The acoustic transponder includes a noise reduction seat and a transponder body, the noise reduction seat is formed with a first accommodating cavity and a first response port connected to the first accommodating cavity, and the transponder body is at least partially arranged in the first accommodating cavity so that the response end of the transponder body is exposed to the noise reduction seat through the first response port.
2. The acoustic transponder according to claim 1, characterized in that The noise reduction seat is also formed with a wiring port communicated with the first accommodating cavity.
3. The acoustic transponder according to claim 2, characterized in that: The noise reduction seat includes a peripheral side wall and a bottom wall, the peripheral side wall is formed with the first accommodating cavity and the first response port, the bottom wall is connected to the peripheral side wall, and the peripheral side wall and / or the bottom wall is formed with the wiring port.
4. The acoustic transponder according to claim 1, characterized in that: The end surface of the response end is arranged flush with the first response port.
5. The acoustic transponder according to claim 1, characterized in that: The noise reduction seat is also formed with an opening connected to the first accommodating cavity, the portion of the transponder body close to the transponder end is arranged in the first accommodating cavity, and the portion of the transponder body away from the transponder end extends out of the first accommodating cavity through the opening.
6. The acoustic transponder according to claim 5, characterized in that The noise reduction seat includes a first noise reduction body and a second noise reduction body. The first noise reduction body is formed with the first accommodating cavity, the first responding port and the opening. The second noise reduction body is arranged around the portion of the responder body extending out of the first accommodating cavity and is spaced apart from the first noise reduction body.
7. The acoustic transponder according to claim 6, characterized in that The noise reduction seat further includes a reinforcing body, which is disposed between the first noise reduction body and the second noise reduction body and is respectively connected to the first noise reduction body and the second noise reduction body.
8. An underwater speedometer, characterized in that: The underwater speed meter includes a shell and at least two acoustic transponders according to any one of claims 1 to 7, the shell is formed with second accommodating cavities the same number as the acoustic transponders and second response ports connected to the second accommodating cavities, the noise reduction seat is at least partially arranged in the second accommodating cavity, and the response end of the transponder body is exposed to the shell through the second response port.
9. The underwater speed meter according to claim 8, characterized in that: The noise reduction seat includes an end surface arranged on one side of the opening direction facing the second answering port, and the end surface is exposed to the shell.
10. An underwater vehicle, characterized in that: The underwater vehicle comprises a vehicle body and the underwater speed meter according to any one of claims 8 to 9, and the housing is mounted on the vehicle body.