Positioning device suitable for underwater high-speed moving target

Abstract

The utility model belongs to the technical field of underwater positioning equipment, and particularly relates to a positioning device suitable for an underwater high-speed moving target. The positioning device keeps static relative to the underwater high-speed moving target through the fixing piece, continuously outputs positioning signals through the transducer, and can position the underwater high-speed moving target in cooperation with signal receiving units such as a hydrophone. The shell of the positioning device is provided with the fairing structure and is integrally streamlined, and the front end of the shell points to the moving front end of the underwater high-speed moving target, so that the water resistance of the shell can be greatly reduced, the surrounding water flow impact and vortex are reduced, and the influence on a positioning assembly in the shell is reduced. Due to the flow guide effect of the shell, the energy converter arranged close to the rear end can be in a relatively stable working environment, and distortion of output sound signals caused by the fact that strong water flow directly impacts the energy converter is avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of underwater positioning equipment, specifically relating to a positioning device suitable for high-speed underwater moving targets. Background Technology

[0002] Accurate positioning of high-speed moving targets in underwater environments is a challenge. Existing positioning beacons often fail to maintain relative stability with moving targets in strong current environments, leading to decreased positioning accuracy. Furthermore, the dynamic characteristics of high-speed moving targets require each component of the beacon to have good shock resistance and fluid guidance capabilities to ensure that the signals generated by each component are not affected by water flow impacts and are transmitted stably.

[0003] Therefore, how to provide a positioning device that can withstand high-speed water flow and has a high-strength structure, suitable for underwater high-speed moving targets, is a technical problem that urgently needs to be solved in this field. Utility Model Content

[0004] In view of the current situation, this utility model provides a positioning device suitable for underwater high-speed moving targets, which solves at least one of the above-mentioned technical problems.

[0005] The technical solution provided in this application is a positioning device suitable for underwater high-speed moving targets, including a positioning beacon and a fixing component for fixing the positioning beacon to the underwater high-speed moving target;

[0006] The positioning beacon includes: a housing, a positioning component and a controller disposed inside the housing, and a transducer electrically connected to the positioning component; the housing is streamlined and has a flow guide structure at the front end; the transducer is disposed near the rear end of the housing; the positioning component generates a positioning signal, the controller converts the positioning signal into an acoustic form and outputs the positioning signal through the transducer; a fixing member fixes the housing so that the front end of the housing points to the moving front end of the underwater high-speed moving target.

[0007] Furthermore, the fastener includes a first clamp that holds a high-speed underwater target, and an installation platform connected to the first clamp for installing a positioning beacon.

[0008] Furthermore, a buffer pad is provided on the inner side of the first clamp.

[0009] Furthermore, the installation platform has a cable space inside for accommodating electrical connection cables.

[0010] Furthermore, the installation platform is equipped with a second clamp for clamping the housing.

[0011] Furthermore, the positioning component includes a clock component for generating a clock signal, the positioning signal including the clock signal.

[0012] Furthermore, the transducer has the function of receiving input sound signals, and does not output positioning signals when it does not receive input sound signals.

[0013] Furthermore, the positioning component includes a gyroscope component for generating attitude signals, the positioning signals including gyroscope signals.

[0014] Furthermore, the transducer has the function of receiving input acoustic signals, and the transducer does not output the positioning signal when it does not receive the input acoustic signal.

[0015] Furthermore, the positioning component includes a storage component; the storage component stores the positioning signal when the transducer does not receive the input acoustic signal.

[0016] Furthermore, the positioning component includes a sensor component for generating sensor signals, the sensor component including at least one of a depth sensor, a gravity sensor, a magnetic sensor, an acceleration sensor, and an inertial sensor, and the positioning signal includes sensor signals.

[0017] Furthermore, the casing is made of titanium alloy.

[0018] Furthermore, the fasteners are made of carbon fiber material.

[0019] The beneficial effects of this application are as follows: This positioning device maintains relative stillness with the high-speed underwater moving target through a fixing component, and continuously outputs a positioning signal through a transducer. Combined with signal receiving units such as hydrophones, it can achieve the positioning of the high-speed underwater moving target. The housing of this positioning device has a flow guide structure and is streamlined overall. The front end of the housing points towards the moving front end of the high-speed underwater moving target, which can greatly reduce the water resistance of the housing, reduce the impact of surrounding water flow and eddies, and mitigate the impact on the positioning components inside the housing. The flow guiding effect of the housing also allows the transducer located near the rear end to operate in a relatively stable environment, avoiding direct impact of strong water flow on the transducer and thus preventing distortion of the output acoustic signal. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In these drawings, similar reference numerals are used to denote similar elements. The drawings described below are some embodiments of the present invention, but not all embodiments. Other drawings will be readily available to those skilled in the art based on these drawings without any inventive effort.

[0021] Figure 1 This is an installation diagram of the present invention;

[0022] Figure 2 This is a side view of the present invention;

[0023] Figure 3 This is a schematic diagram of the first clamp 21 and the mounting platform 22 in this utility model;

[0024] Figure 4 This is a schematic diagram of the electrical connection between the positioning component and the transducer 12 in this utility model.

[0025] Figure label:

[0026] Positioning beacon 1, fixing component 2, underwater high-speed moving target 3, shell 11, fairing structure 111, transducer 12, clamp 21, buffer pad 211, mounting platform 22, wire space 221, second clamp 23. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] In this application, unless otherwise expressly 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 being 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 being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this embodiment, the terms "upper," "lower," "left," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 application. In addition, the terms "first" and "second" are used only for descriptive distinction and have no special meaning.

[0031] This disclosure provides an embodiment of a positioning device suitable for a high-speed underwater moving target 3, including a positioning beacon 1 and a fixing member 2 for fixing the positioning beacon 1 to the high-speed underwater moving target 3; the positioning beacon 1 includes: a housing 11 with a flow guide structure 111 at the front end, a positioning component and a controller disposed inside the housing 11, and a transducer 12 electrically connected to the positioning component; the housing 11 is streamlined, and the transducer 12 is disposed near the rear end of the housing 11; the positioning component generates a positioning signal, the controller converts the positioning signal into an acoustic form and outputs the positioning signal through the transducer 12, and the fixing member 2 fixes the housing 11 so that the front end of the housing 11 points to the moving front end of the high-speed underwater moving target 3.

[0032] This positioning device maintains relative stillness with the underwater high-speed moving target 3 via the fixing component 2, and continuously outputs a positioning signal through the transducer 12. Combined with a signal receiving unit such as a hydrophone, it can achieve the positioning of the underwater high-speed moving target 3. The housing 11 of this positioning device has a flow guide structure 111 and is streamlined overall. The front end of the housing 11 points towards the moving front end of the underwater high-speed moving target 3, which can greatly reduce the water resistance of the housing 11, reduce the impact of surrounding water flow, reduce nearby eddies, and mitigate the impact on the positioning components inside the vibrating housing 11. The flow guiding effect of the housing 11 also allows the transducer 12, located near the rear end, to operate in a relatively stable environment, preventing strong water flow from directly impacting the transducer 12 and causing distortion of the output acoustic signal.

[0033] This embodiment can be used for underwater high-speed moving targets with a maximum speed greater than 30 knots.

[0034] The specific shapes of the fairing 111 and the shell 11 are designed to minimize the overall frontal resistance of the positioning beacon 1, ensuring that the transducer 12 is also within the influence range of the guiding effect, thus preventing the high-speed water flow from directly impacting the transducer 12. The design can be directly referenced to the shape of the underwater high-speed moving target 3. In this embodiment, the underwater high-speed moving target 3 is a high-speed underwater vehicle.

[0035] In this embodiment, the fixing member 2 includes a first clamp 21 for clamping the underwater high-speed moving target 3, and an installation platform 22 connected to the first clamp 21 for installing the positioning beacon 1. The first clamp 21 and the installation platform 22 have a small water surface area, thus having minimal impact on the movement of the underwater high-speed moving target 3 and its surrounding flow pattern, providing a stable and reliable fixing effect. The underwater high-speed moving target 3 typically has a streamlined structure, making the clamp highly adaptable to clamping it. Similarly, in this embodiment, the installation platform 22 is also provided with a second clamp 23 for clamping the housing 11.

[0036] Preferably, in this embodiment, a buffer pad 211 is provided on the inner side of the first clamp 21, which can be exemplarily set as a 5mm rubber pad, so as to further reduce the influence of the first clamp 21 on the movement of the underwater high-speed moving target 3 and increase the fixing reliability of the fastener 2.

[0037] Preferably, the installation platform 22 has a wire space 221 inside for accommodating electrical connection wires to prevent water flow from impacting the wires and causing them to break. The wire space can accommodate at least the electrical connection wires between the components inside the housing 11 and the transducer 12.

[0038] In this embodiment, the positioning component includes a clock component for generating a clock signal, and the positioning signal includes the clock signal. After receiving the clock signal, the waterborne transceiver can calculate the positioning information by calculating the round-trip time and the received phase difference, combined with mathematical methods such as coordinate system and matrix transformation. Typically, the clock component includes a high-precision clock, which may exhibit significant errors under severe disturbances. The clock component of this disclosure is located inside the housing 11, which can effectively avoid this problem.

[0039] Preferably, in this embodiment, the transducer 12 has the function of receiving input sound signals, and the transducer 12 does not output positioning signals when it does not receive input sound signals. That is, it remains silent when no specific interrogation signal is received, thereby improving security.

[0040] In this embodiment, the positioning component further includes a gyroscope component, which can generate attitude signals as part of the positioning signal. Gyroscopes can exhibit significant errors under severe disturbances; the gyroscope in this disclosure is located inside the housing 11, effectively mitigating this problem. As a commonly used inertial sensor, the gyroscope has mature existing methods for calculating positioning information based on its generated attitude signals.

[0041] In this embodiment, the positioning component also includes a storage component, which stores the positioning signal when the transducer 12 does not receive an input acoustic signal. That is, the positioning device activates the recording function when in a quiet state to provide a positioning signal after the positioning signal output is restored or the target is retrieved, and combines mathematical methods to calculate the trajectory of the underwater high-speed moving target 3 in a quiet state.

[0042] In some embodiments of this disclosure, the positioning component may further include sensor components, such as at least one of a depth sensor, a gravity sensor, a magnetic sensor, an acceleration sensor, and an inertial sensor. Existing technologies have positioning calculation models such as geomagnetic matching navigation, gravity matching navigation, and inertial navigation; the positioning information provided by the aforementioned sensors can be combined with these models for positioning calculation. These sensor components may exhibit significant errors under conditions of severe water flow disturbance; therefore, the sensor components may be housed inside the housing 11 to improve positioning accuracy.

[0043] Preferably, the shell 11 is made of titanium alloy, which is lightweight, high-strength, high-pressure resistant, and corrosion resistant, and can withstand the pressure and impact in deep water and high-speed flow environments, providing stable flow guidance.

[0044] Preferably, the fixing component 2 is made of carbon fiber material, which has excellent pressure resistance and impact resistance, ensuring the attitude stability of the positioning beacon 1 in high-speed movement and complex underwater environments.

[0045] The above-described contents can be implemented individually or in combination in various ways, and all such variations are within the protection scope of this utility model.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0047] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific embodiments of the present invention are limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A positioning device suitable for high-speed underwater moving targets, characterized in that, It includes a positioning beacon (1) and a fastener (2) for fixing the positioning beacon (1) to the underwater high-speed moving target; The positioning beacon (1) includes: a housing (11), a positioning component and a controller disposed inside the housing (11), and a transducer (12) electrically connected to the positioning component; the housing (11) is streamlined and has a flow guide structure (111) at the front end; the transducer (12) is disposed near the rear end of the housing (11); the positioning component generates a positioning signal, the controller converts the positioning signal into an acoustic form and outputs the positioning signal through the transducer (12); the fixing member (2) fixes the housing (11) so that the front end of the housing (11) points to the moving front end of the underwater high-speed moving target.

2. The positioning device according to claim 1, characterized in that, The fixing member (2) includes a first clamp (21) for clamping the underwater high-speed moving target, and also includes an installation platform (22) connected to the first clamp (21) for installing the positioning beacon (1).

3. The positioning device according to claim 2, characterized in that, The first clamp (21) has a buffer pad (211) on its inner side.

4. The positioning device according to claim 2, characterized in that, The installation platform (22) has a wire space (221) inside for accommodating electrical connection wires.

5. The positioning device according to claim 2, characterized in that, The installation platform (22) is provided with a second clamp (23) for clamping the housing (11).

6. The positioning device according to claim 1, characterized in that, The positioning component includes a clock component for generating a clock signal, the positioning signal including the clock signal.

7. The positioning device according to claim 1, characterized in that, The positioning component includes a gyroscope component for generating attitude signals, the positioning signals including gyroscope signals.

8. The positioning device according to claim 1, characterized in that, The transducer (12) has the function of receiving input sound signals. When the transducer (12) does not receive the input sound signal, it does not output the positioning signal.

9. The positioning device according to claim 8, characterized in that, The positioning component includes a storage component; the storage component stores the positioning signal when the transducer (12) does not receive the input acoustic signal.

10. The positioning device according to claim 1, characterized in that, The fastener (2) is made of carbon fiber material.

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