CN214473958U - Shipborne bubble wake flow characteristic detection device and ship - Google Patents

Abstract

The utility model discloses an on-board bubble wake characteristic detection device and naval vessel. The device comprises: the system comprises at least one laser emitting module, at least one laser light source module, at least one optical conversion sensing module, a signal acquisition processing module, a stabilized voltage supply module, a detection result display terminal and a master control module; the problem that the existing acoustic wake flow detection mode is poor in concealment or a detection device is complex and large can be solved.

Description

Shipborne bubble wake flow characteristic detection device and ship

Technical Field

The utility model relates to a shipborne detection technology field especially relates to a shipborne bubble wake characteristic detection device and naval vessel.

Background

In the process of sailing of a dynamic target object on the water surface or in water, due to the fact that cavitation is caused by the motion of a propeller or wave breaking at a waterline and air entrainment, a special area containing a large number of bubbles and vortexes is formed in a water area at the tail of the dynamic target object, and the special area is called as a bubble wake. The bubble tails can remain in the water for a long time, usually up to tens of minutes. By detecting the bubble wake flow, indirect detection of the dynamic target object can be realized.

The traditional bubble wake detection mode adopts acoustic wake detection which can be divided into active acoustic detection and passive acoustic detection. The active acoustic detection is to actively emit acoustic waves, reflect the acoustic waves after encountering a target object, receive reflected echoes, and measure parameters of the target object according to the reflected echoes. However, active acoustic detection itself needs to emit acoustic signals, which are easy to detect, i.e. have poor concealment. In addition, passive acoustic detection is to receive radiation noise generated by the target object and signals emitted by the underwater acoustic device, and process and calculate the received acoustic signals to obtain relevant parameters of the target object. However, the attenuation of the radiated noise and the signal emitted by the underwater acoustic device after long-distance transmission is very weak, so that the signal-to-noise ratio of passive acoustic detection is low, and more signal processing measures are required for improving the signal-to-noise ratio, so that the detection device is complex and large easily, and the detection of an underwater dynamic target object cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model provides a shipborne bubble wake characteristic detection device and naval vessel can solve the relatively poor or complicated and huge problem of detection device of current sound wake detection mode disguise.

In a first aspect, an on-board bubble wake characteristic detection device includes: the system comprises at least one laser emitting module, at least one laser light source module, at least one optical conversion sensing module, a signal acquisition processing module, a stabilized voltage supply module, a detection result display terminal and a master control module;

the laser light source module is connected with the laser emission module through a cabin-penetrating optical cable; the optical conversion sensing module is electrically connected with the signal acquisition processing module through a cabin-penetrating cable; the stabilized voltage supply module is respectively and electrically connected with the signal acquisition processing module and the optical conversion sensing module through the cabin penetrating cable; the detection result display terminal is electrically connected with the signal acquisition processing module through the cabin penetrating cable; the master control module is respectively and electrically connected with the laser emission module, the laser light source module, the optical conversion sensing module, the signal acquisition processing module, the stabilized voltage power supply module and the detection result display terminal through the cabin penetrating cable.

In a second aspect, a ship adopts any one of the onboard bubble wake characteristic detection devices, and a laser emission module and an optical conversion sensing module of the onboard bubble wake characteristic detection device are both positioned on the outer wall of a cabin of a ship bow;

the laser light source module, the signal acquisition processing module and the stabilized voltage supply module of the shipborne bubble wake characteristic detection device are positioned in a cabin of a ship bow;

and a detection result display terminal and a master control module of the shipborne bubble wake characteristic detection device are positioned in a ship command cabin.

The utility model provides a ship-borne bubble wake characteristic detection device and naval vessel, the device produces the laser beam through laser source module, launches after the extension of laser emission module, and the extension laser beam can take place bubble crowd scattering effect if meet the bubble wake, if do not meet the bubble wake, continues to propagate towards the detection area; the optical conversion sensing module receives forward scattering optical signals or forward transmission optical signals, performs space spectrum conversion on the received optical signals, performs space identification analysis on the optical signals, converts the converted optical signals into electric signals, performs corresponding processing on the electric signals by the signal acquisition processing module to obtain detection results, and finally displays the detection results and the azimuth information of the dynamic target object on the displayer. Compared with the existing acoustic wake flow detection mode, the laser beam is not easy to intercept and capture, the concealment is good, the device is simple in structure, the installation is flexible, and the application range is wide. And, compare in utilizing the sound wave to survey, the utility model discloses utilize the laser beam to meet the optical effect that the bubble wake takes place the bubble crowd scattering, it is comparatively accurate to the judgement of the position information of dynamic target object, sensitivity and stability are higher. The ship provided with the shipborne bubble wake characteristic detection device has the advantages that the laser emission module and the optical conversion sensing module are arranged at the bow part of the ship, so that a dynamic target object in front of the sailing of the ship can be detected, and the interference of bubble wake generated by the ship is avoided.

Drawings

Fig. 1 is a schematic structural diagram of a first shipborne bubble wake characteristic detection device provided in an embodiment of the present specification;

fig. 2 is a schematic structural diagram of a second shipborne bubble wake characteristic detection device provided in the embodiment of the present specification;

fig. 3 is a schematic view of a first ship structure provided in the embodiments of the present disclosure;

fig. 4 is a schematic view of a second ship structure provided in the embodiments of the present disclosure;

fig. 5 is a flowchart of a bubble wake characteristic detection method provided in an embodiment of the present disclosure.

Detailed Description

In order to better understand the technical solutions provided by the embodiments of the present specification, the technical solutions of the embodiments of the present specification are described in detail below with reference to the drawings and specific embodiments, and it should be understood that the specific features in the embodiments and examples of the present specification are detailed descriptions of the technical solutions of the embodiments of the present specification, and are not limitations on the technical solutions of the embodiments of the present specification, and the technical features in the embodiments and examples of the present specification may be combined with each other without conflict.

The traditional bubble wake detection mode adopts acoustic wake detection which can be divided into active acoustic detection and passive acoustic detection. The active acoustic detection is to actively emit acoustic waves, reflect the acoustic waves after encountering a target object, receive reflected echoes, and measure parameters of the target object according to the reflected echoes. However, active acoustic detection itself needs to emit acoustic signals, which are easy to detect, i.e. have poor concealment. In addition, passive acoustic detection is to receive radiation noise generated by the target object and signals emitted by the underwater acoustic device, and process and calculate the received acoustic signals to obtain relevant parameters of the target object. However, the signal noise of passive acoustic detection is low due to very weak attenuation of the radiated noise and the signal emitted by the underwater acoustic device after long-distance propagation, and the detection device is complex and large due to the fact that more signal processing measures are needed for improving the signal noise ratio, so that the detection of the underwater dynamic target object cannot be met.

Theoretical and experimental studies show that the propagation characteristics of light in the wake region are changed due to the existence of the characteristics of bubbles, and particularly, when the expanded laser beam is transmitted in water, the spatial spectrum width of a forward scattering light beam is narrowed due to the existence of the scattering effect of bubble clusters. The utility model discloses combine the structure and the appearance characteristic of surface of water naval vessel, based on the optics scattering characteristic of bubble wake, provide a shipborne bubble wake characteristic detection device, install the device's naval vessel and utilize the device's bubble wake characteristic detection method, can effectively detect the bubble wake characteristic of surface of water and aquatic dynamic target object to reach the purpose of surveying dynamic target object position.

Specifically, in a first aspect, fig. 1 is a schematic structural diagram of a first shipborne bubble wake characteristic detection apparatus provided in an embodiment of the present specification. As shown in fig. 1, the shipborne bubble wake characteristic detecting device provided by this embodiment includes: the device comprises a laser emitting module 1, a laser light source module 2, an optical conversion sensing module 3, a signal acquisition processing module 4, a stabilized voltage supply module 5, a detection result display terminal 6 and a master control module 7. The master control module 7 is electrically connected with the laser emitting module 1, the laser light source module 2, the optical conversion sensing module 3, the signal acquisition processing module 4, the stabilized voltage power supply module 5 and the detection result display terminal 6 through cabin penetrating cables EC (shown by solid lines in figure 1) respectively. The general control module 7 plays a role in controlling other modules, such as controlling on/off, setting parameters or modifying parameters, and the like, and the application is not particularly limited.

With continued reference to fig. 1, the laser light source module 2 is connected to the laser emission module 1 via a cross-cabin optical cable OC (shown by a chain line in fig. 1); the laser light source module 2 can adopt a blue-green light solid laser with the wavelength of 532nm, the quality of light beams emitted by the blue-green light solid laser with the wavelength of 532nm is higher, the attenuation of the light beams under water is smaller, and the volume of equipment is smaller. The laser source module 2 generates laser beams, the laser beams are transmitted to the laser emitting module 1 through the cabin penetrating optical cable OC, and the laser emitting module 1 correspondingly expands the laser beams and then emits the laser beams into water. The optical conversion sensing module 3 is electrically connected with the signal acquisition processing module 4 through a cabin-penetrating cable EC; the signal acquisition processing module 4 may adopt a DSP processor.

With continued reference to fig. 1, the optical conversion sensing module 3 includes an optical signal receiving and converting submodule 31 and a photoelectric conversion submodule 32, and the photoelectric conversion submodule 32 is electrically connected to the signal acquisition processing module 4 through a cabin-through cable EC. The direction of the expanded laser beam emitted by the laser emission module 1 is generally toward the sailing direction of a ship carrying the detection device provided by the embodiment, the area in front of the sailing of the ship is a detection area, if the expanded laser beam encounters a bubble wake flow during the propagation process in the detection area, a bubble group scattering effect occurs, the optical signal receiving and converting sub-module 31 can be used for receiving a forward scattering beam propagating toward the sailing direction of the ship, and the forward scattering beam can be regarded as a scattering optical signal propagating in the emission direction of the expanded laser beam emitted by the laser emission module 1. If the expanded laser beam does not encounter a bubble wake in the detection region, the optical signal received by the optical signal receiving and converting sub-module 31 is only the forward propagating optical signal emitted by the laser emitting module 1. The optical signal receiving and converting sub-module 31 may perform spatial frequency spectrum conversion on the received optical signal; the spatial frequency spectrum transformation can adopt optical spatial Fourier transformation; the spatial frequency spectrum transformation is a process of identifying, analyzing and integrating spatial information of the optical signal, and can analyze the position information of the bubble wake generated by the dynamic target. The optical-to-electrical conversion sub-module 32 is used to convert the optical signal into an electrical signal, and it should be noted that the optical signal receiving and converting sub-module 31 and the optical-to-electrical conversion sub-module 32 are commercially available. The laser emitting module 1 and the optical signal receiving and converting submodule 31 are optically coaxial, and the optical signal receiving and converting submodule 31 can perform accurate spatial frequency spectrum conversion on a received optical signal.

With continued reference to fig. 1, the regulated power supply module 5 is electrically connected to the signal acquisition processing module 4 and the optical conversion sensing module 3 through the cabin penetrating cable EC, respectively. The voltage-stabilized power supply module 5 mainly provides stable voltage supply for the optical conversion sensing module 3 and the signal acquisition processing module 4. The electrical signal output by the photoelectric conversion sub-module 32 is transmitted to the signal acquisition and processing module 4, and the signal acquisition and processing module 4 performs corresponding processing on the electrical signal to obtain a detection result. For example, the processed electrical signal may represent the detection result in the form of an optical scattering spectrum, and then the detection result is sent to the detection result display terminal 6 for display. Specifically, the detection result display terminal 6 may include a display 61 and a detection result judgment sub-module 62; the detection result judgment submodule 62 is internally provided with a preset threshold value, the preset threshold value is obtained by taking the reciprocal of the optical scattering spectrum width, the optical scattering spectrum of the calculated preset threshold value is the optical scattering spectrum corresponding to the optical signal which does not pass through the bubble swarm scattering effect, and the preset threshold value can be set according to the specific environments of different water areas and the like. If the value obtained by taking the reciprocal of the optical scattering spectrum width of the detection result exceeds a preset threshold value, it can be determined that a bubble wake of the dynamic target object exists in the detection area, the azimuth information of the dynamic target object can be obtained according to the azimuth information of the bubble wake, the detection result judgment submodule 62 finally outputs final result display data, if the azimuth information of the dynamic target object is detected, the final result display data includes the azimuth information of the dynamic target object, and the final result display data is sent to the display 61 for display. The detection result judgment submodule 62 is electrically connected with the signal acquisition processing module 4 through a cabin-penetrating cable EC, and the detection result judgment submodule 62 is commercially available in the existing market.

It should be noted that the cross-cabin optical cable OC and the cross-cabin cable EC may be in accordance with the conventional model used on the surface ship, and may improve the reliability and compatibility of the shipborne bubble wake characteristic detection apparatus.

According to the shipborne bubble wake characteristic detection device provided by the embodiment, the laser source module 2 generates a laser beam, the laser beam is emitted after being expanded by the laser emission module 1, if the expanded laser beam meets a bubble wake, a bubble group scattering effect occurs, and if the expanded laser beam does not meet the bubble wake, the expanded laser beam continues to propagate towards a detection area; the optical signal receiving and converting submodule 31 receives a forward-scattered optical signal or a forward-propagated optical signal, performs spatial frequency spectrum conversion on the received optical signal, performs spatial identification and analysis on the optical signal, the photoelectric conversion submodule 32 converts the converted optical signal into an electrical signal, the signal acquisition and processing module 4 performs corresponding processing on the electrical signal to obtain a detection result, the detection result judging submodule 62 performs comparison and analysis on the detection result and a preset threshold value to obtain azimuth information of a bubble wake flow generated by a dynamic target object, further obtains azimuth information of the dynamic target object by analysis, and finally displays the detection result and the azimuth information of the dynamic target object on the display 61. Compared with the existing acoustic wake flow detection mode, the laser beam is not easy to intercept and capture, the concealment is good, the device is simple in structure, the installation is flexible, and the application range is wide. And, compare in utilizing the sound wave to survey, the utility model discloses utilize the laser beam to meet the optical effect that the bubble wake takes place the bubble crowd scattering, it is comparatively accurate to the judgement of the position information of dynamic target object, sensitivity and stability are higher.

Fig. 2 is a schematic structural diagram of a second shipborne bubble wake characteristic detection device provided in an embodiment of the present specification. As shown in fig. 2, in the shipborne bubble wake characteristic detection apparatus provided in this embodiment, the number of the laser emitting modules 1, the number of the laser light source modules 2, and the number of the optical conversion sensing modules 3 are all 3. The number of the laser emitting modules 1, the laser light source modules 2 and the optical conversion sensing modules 3 may not be limited to the number shown in fig. 1 and 2, and the number may be 2 or more, and the present application is not particularly limited. The laser emitting modules 1, the laser light source modules 2 and the optical conversion sensing modules 3 shown in fig. 2 can be in one-to-one correspondence, and the 3 laser emitting modules 1 and the 3 optical conversion sensing modules 3 can be arranged at different positions according to different detection requirements, so that detection in a wider range can be carried out spatially.

In a second aspect, fig. 3 is a schematic view of a first ship structure provided in an embodiment of the present disclosure. As shown in fig. 3, the embodiment provides a ship using any one of the onboard bubble wake characteristic detection devices, where a dotted line in fig. 3 is a water surface, a dash-dot line is a cabin-through optical cable, and both the laser emission module 1 and the optical conversion sensing module 3 of the onboard bubble wake characteristic detection device are located on the outer wall of the cabin of the bow portion 01 of the ship; the laser emission module 1 and the optical conversion sensing module 3 are installed at the bow part 01 of the ship, so that the optical conversion sensing module 3 emits the expanded laser beam to the sailing direction of the ship, the optical conversion sensing module 3 receives the forward scattered light beam and the unscattered expanded laser beam, and the shipborne bubble wake characteristic detection device can detect a dynamic target object in front of the sailing of the ship, such as a bubble wake TB generated by a certain dynamic target object in front of the sailing of the ship as shown in FIG. 3; in addition, the laser emitting module 1 and the optical conversion sensing module 3 are arranged on the bow part 01 of the ship, so that the interference of bubble wake generated by the ship can be avoided. The laser emitting module 1 and the optical conversion sensing module 3 can be embedded on the outer wall of the cabin of the ship bow 01, and the streamline of the appearance of the laser emitting module 1 and the streamline of the optical conversion sensing module 3 can be the same as the streamline of the surface of the outer cabin wall of the ship bow, so that the influence on the ship hydrodynamic force and the acoustic performance can be reduced.

With continued reference to fig. 3, the laser light source module 2, the signal acquisition processing module 4 and the regulated power supply module 5 of the shipborne bubble wake characteristic detection apparatus may be located inside a cabin of a ship bow; the detection result display terminal 6 and the master control module 7 of the shipborne bubble wake characteristic detection device can be positioned in a ship command cabin.

It should be noted that, because the connection relationship between the modules shown in fig. 3 is more, the cabin penetrating cables electrically connecting the modules with the overall control module 7 are not shown.

Fig. 4 is a schematic view of a second ship structure provided in the embodiments of the present disclosure. As shown in fig. 4, the number of the laser emitting modules 1 and the number of the optical conversion sensing modules 3 are 3, and the laser emitting modules and the optical conversion sensing modules are respectively positioned on the outer wall of the left hold, the outer wall of the middle hold and the outer wall of the right hold of the bow part 01 of the ship; the number of the laser light source modules 2 is 3, and the laser light source modules are respectively positioned in the left cabin, the middle cabin and the right cabin of the ship bow part 01. The 3 laser emitting modules 1 can be distributed on a straight line or irregularly arranged as long as being respectively positioned on the outer wall of the left cabin, the outer wall of the middle cabin and the outer wall of the right cabin of the bow part 01 of the ship. 3 laser source module 2 can provide the laser source for 3 laser emission module 1 respectively, 3 laser emission module 1 can carry out the extension laser beam transmission of three direction scope respectively, 3 optical transformation sensing module 3 can receive forward scattered light signal and the extension laser beam that does not take place the scattering in 3 way orientation respectively, and carry out space spectrum conversion and photoelectric conversion with 3 way light signal respectively, later carry out integrated processing to 3 way signals by signal acquisition processing module 4, obtain the testing result, detect out the bubble wake TB that the dynamic target thing in naval vessel navigation the place ahead produced, bubble wake TB shown in fig. 3 and 4 is only schematic.

In the ship provided by this embodiment, the onboard bubble wake characteristic detection device is installed on the ship, and the laser emission module 1 and the optical conversion sensing module 3 are installed on the bow 01 of the ship to detect a dynamic target object ahead of the ship, so as to avoid interference of bubble wake generated by the ship. The laser emission modules 1, the laser light source modules 2 and the optical conversion sensing module 3 are arranged, so that a dynamic target object in front of the sailing of a ship can be detected in multiple directions.

In a third aspect, fig. 5 is a flowchart of a method for detecting a bubble wake characteristic provided in an embodiment of the present specification, and as shown in fig. 5, the embodiment provides a method for detecting a bubble wake characteristic, where any one of the above-mentioned onboard bubble wake characteristic detection apparatuses is adopted, and the method includes the following steps:

s1: emitting laser; the laser source module generates laser beams, and the laser beams are emitted after being expanded by the laser emitting module.

S2: transmitting an optical signal propagating in a transmitting direction of the expanded laser beam at the laser transmitting module; the emitting direction of the laser emitting module for emitting the expanded laser beam is the same as the sailing direction of the ship; the identity here is only substantially identical and is not strictly identical. With the continuous emission of the laser emission module and the continued forward sailing of the ship, the optical conversion sensing module can receive scattered optical signals or unscattered optical signals, which are all propagated along the same direction with the sailing direction of the ship, so that the optical conversion sensing module receives the optical signals in front of the sailing of the ship.

S3: carrying out space spectrum conversion and photoelectric conversion on the received optical signals to obtain corresponding electric signals; the spatial frequency spectrum transformation adopts optical spatial Fourier transformation. And carrying out space spectrum conversion and photoelectric conversion on the received forward scattering light signals or the light signals which are not scattered and forward propagated to obtain corresponding electric signals.

S4: the electrical signal is processed to obtain a detection result, where the processing may be to form an optical scattering spectrum from the electrical signal.

S5: comparing the detection result with a preset threshold value, and judging whether a bubble wake flow of the dynamic target exists in the detection area; comparing the reciprocal of the optical scattering spectrum width in the detection result with a preset threshold, and if the detection result exceeds the preset threshold, judging that bubble wake flow of the dynamic target exists in the detection area to obtain final result display data; if the detection result does not exceed the preset threshold, the bubble wake of the dynamic target does not exist in the detection area, namely the dynamic target does not exist. If the bubble wake of the dynamic target exists in the detection area, the azimuth information of the dynamic target can be judged according to the azimuth information of the bubble wake, and the final result display data comprises the detected azimuth information of the dynamic target

S6: and displaying the final result display data on the detection result display terminal. If the dynamic object exists, the icon of the dynamic object can be displayed at the corresponding position on the screen of the display, and if the dynamic object does not exist, the icon of the dynamic object is not displayed on the screen of the display.

Step S2 may further include:

and according to the propagation path, dividing the optical signals with the same laser emission direction as the laser emission module into 3 paths for classified reception. If 3 laser emitting modules 1, laser light source modules 2 and optical conversion sensing modules 3 are provided, the optical signals received by the optical conversion sensing modules can be divided into three paths to be received respectively.

Step S3 further includes:

and respectively carrying out space frequency spectrum conversion and photoelectric conversion on the 3 paths of optical signals to obtain 3 groups of corresponding electric signals, wherein the 3 paths of electric signals carry the direction information of each signal.

Step S4, further comprising:

respectively processing the 3 groups of electric signals to obtain 3 groups of detection results; the 3 groups of detection results respectively carry respective direction information.

The description has been presented with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the description. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present specification without departing from the spirit and scope of the specification. Thus, if such modifications and variations of the present specification fall within the scope of the claims of the present specification and their equivalents, the specification is intended to include such modifications and variations.

Claims (8)

1. The utility model provides an on-board bubble wake characteristic detection device which characterized in that includes: the device comprises at least one laser emitting module (1), at least one laser light source module (2), at least one optical conversion sensing module (3), a signal acquisition processing module (4), a stabilized voltage power supply module (5), a detection result display terminal (6) and a master control module (7);

the laser light source module (2) is connected with the laser emission module (1) through a cabin-penetrating Optical Cable (OC); the optical conversion sensing module (3) is electrically connected with the signal acquisition processing module (4) through a cabin penetrating cable (EC); the stabilized voltage supply module (5) is respectively and electrically connected with the signal acquisition processing module (4) and the optical conversion sensing module (3) through the cabin penetrating cable (EC); the detection result display terminal (6) is electrically connected with the signal acquisition processing module (4) through the cabin penetrating cable (EC); the master control module (7) is electrically connected with the laser emission module (1), the laser light source module (2), the optical conversion sensing module (3), the signal acquisition processing module (4), the stabilized voltage power supply module (5) and the detection result display terminal (6) through the cabin penetrating cable (EC) respectively.

2. The shipborne bubble wake characteristic detection device according to claim 1, characterized in that the number of the laser emitting modules (1), the laser light source modules (2) and the optical conversion sensing modules (3) is 3.

3. The shipborne bubble wake characteristic detection device according to claim 1, characterized in that the laser light source module (2) adopts a solid laser with a wavelength of 532 nm.

4. The shipborne bubble wake characteristic detection device according to claim 1, wherein the detection result display terminal (6) comprises a display (61) and a detection result judgment submodule (62); and a preset threshold value is arranged in the detection result judgment submodule (62), and if the detection result exceeds the preset threshold value, the bubble wake flow of the dynamic target object in the detection area is judged.

5. The shipborne bubble wake characteristic detection device according to claim 1, characterized in that the signal acquisition and processing module (4) adopts a DSP processor.

6. The shipborne bubble wake characteristic detection device according to claim 1, wherein the optical conversion sensing module (3) comprises an optical signal receiving conversion sub-module (31) and an optical-to-electrical conversion sub-module (32); the optical signal receiving and converting submodule (31) is used for receiving an optical signal which propagates in the transmitting direction of the laser transmitting module (1) for transmitting the expanded laser beam and carrying out spatial frequency spectrum conversion on the received optical signal;

the laser emission module (1) and the optical signal receiving and converting sub-module (31) are optically coaxial.

7. A ship adopting the shipborne bubble wake characteristic detection device as claimed in any one of claims 1 to 6, wherein the laser emitting module (1) and the optical conversion sensing module (3) of the shipborne bubble wake characteristic detection device are both positioned on the outer wall of a cabin of a bow part (01) of the ship;

the laser light source module (2), the signal acquisition processing module (4) and the stabilized voltage power supply module (5) of the shipborne bubble wake characteristic detection device are positioned in a cabin of a ship bow;

and a detection result display terminal (6) and a master control module (7) of the shipborne bubble wake characteristic detection device are positioned in a ship command cabin.

8. The ship according to claim 7, characterized in that the number of the laser emission modules (1) and the optical conversion sensing modules (3) is 3, and the laser emission modules and the optical conversion sensing modules are respectively positioned on the outer wall of a left cabin, the outer wall of a middle cabin and the outer wall of a right cabin of the bow part (01) of the ship;

the number of the laser light source modules (2) is 3, and the laser light source modules are respectively positioned inside a left cabin, a middle cabin and a right cabin of a ship bow part (01).

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