1. The active vibration reduction detection element is characterized by comprising a ship body, a support frame, an active vibration reduction assembly and a detection assembly, wherein the bottom end of the support frame is fixedly arranged on the ship body through the main vibration reduction assembly, and the detection assembly is fixedly arranged at the upper end of the support frame; the active vibration reduction assembly comprises a base, a plurality of active vibration absorbers which are annularly arranged are arranged on the base, and inductors are arranged on the base below the active vibration absorbers and are correspondingly arranged with the active vibration absorbers; the active shock absorber comprises an electromagnetic relay, a compression spring and a sliding block, the electromagnetic relay is fixedly arranged on the base, the sliding block is slidably arranged on the base, and the compression spring is arranged between the electromagnetic relay and the sliding block; the inductor and the electromagnetic relay are connected to an electric control unit of the ship body through electric signals.

2. An actively damped probe member according to claim 1 wherein said base includes a base plate and a stanchion, said stanchion being secured to said base plate, said electromagnetic relay being secured to said base plate, said slider being slidably mounted on said stanchion.

3. An actively damped probe element according to claim 2 wherein said chassis is integrally formed with said stanchion.

4. An active vibration damping detecting element according to any one of claims 1 to 3, wherein the sensor comprises a mercury disk and a plurality of antennae, the antennae are uniformly distributed around the mercury disk, and one end of each antenna is connected to the mercury disk in a communication way; a plurality of signal contacts are arranged in the antenna and connected to the electric control unit through electric signals.

5. An actively damped probe member as set forth in claim 4 wherein said feeler is attached to the mercury plate at one end at a lower level than at the other end.

6. An actively damped probe element according to claim 4 wherein the number of antennae of said sensor corresponds to the number of active dampers.

7. An actively damped detector element according to claim 1 wherein said compression spring is secured at both ends to said electromagnetic relay and said slider.

8. An actively damped probe member according to claim 1 wherein said number of active dampers is eight.

9. The active vibration damping detecting element according to claim 1, wherein the detecting component comprises an antenna support, an antenna and a laser radar, the antenna support and the laser radar are both fixedly installed at the top end of the support frame, and the antenna is fixedly installed at both ends of the antenna support.

10. An actively damped probe element according to claim 1 or 9 wherein said support frame is further provided with an Inertial Measurement Unit (IMU) for measuring inertia.

Background

The laser radar technology is a brand new remote sensing technology, is rapidly developed in the aspect of topographic surveying and mapping due to high precision and high efficiency, and plays an important role in the fields of cultural relics protection, urban building surveying and mapping, topographic surveying and mapping, mining industry, deformation monitoring, factories, large-scale structures, pipeline design, aircraft shipbuilding and the like. The laser radar technology can carry information by phase, frequency, polarization and amplitude, and acquire the space geographic information of a target object in real time.

At present, the laser radar technology is combined with the shipborne multi-beam sounding technology, and the water-land integrated measurement is carried out by utilizing an overwater carrier, which puts higher requirements on the stable and simple installation of the laser radar.

The existing shipborne laser radar mounting device is only mounted by a simple ship top type, and the defects that the ship body is rigidly connected with the mounting device, the vibration between the ship body and the mounting device is not considered, and the measurement precision is influenced exist obviously.

Therefore, it is desirable to develop an active vibration-damping detecting element to solve the problems of the prior art.

Disclosure of Invention

The invention aims to provide an active vibration reduction detection element, which can actively reduce vibration, thereby realizing stable detection and further improving the detection precision, has a simple structure, is convenient to use and strong in practicability, and solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a detection element for active vibration reduction comprises a ship body, a support frame, an active vibration reduction assembly and a detection assembly, wherein the bottom end of the support frame is fixedly arranged on the ship body through the main vibration reduction assembly, and the detection assembly is fixedly arranged at the upper end of the support frame; the active vibration reduction assembly comprises a base, a plurality of active vibration absorbers which are annularly arranged are arranged on the base, and inductors are arranged on the base below the active vibration absorbers and are correspondingly arranged with the active vibration absorbers; the active shock absorber comprises an electromagnetic relay, a compression spring and a sliding block, the electromagnetic relay is fixedly arranged on the base, the sliding block is slidably arranged on the base, and the compression spring is arranged between the electromagnetic relay and the sliding block; the inductor and the electromagnetic relay are connected to an electric control unit of the ship body through electric signals.

As a further scheme of the invention: the base comprises a chassis and a support, the support is fixed on the chassis, the electromagnetic relay is fixed on the chassis, and the sliding block is slidably mounted on the support.

As a further scheme of the invention: the chassis and the pillar are integrally formed.

As a further scheme of the invention: the sensor comprises a mercury disc and a plurality of antennae, the antennae are uniformly distributed around the mercury disc, and one ends of the antennae are communicated and connected with the mercury disc; a plurality of signal contacts are arranged in the antenna and connected to the electric control unit through electric signals.

As a further scheme of the invention: the horizontal line of one end of the antenna connected to the mercury plate is lower than that of the other end of the antenna.

As a further scheme of the invention: the number of antennae of the inductor corresponds to the number of active vibration dampers.

As a further scheme of the invention: and two ends of the compression spring are distributed and fixed on the electromagnetic relay and the sliding block.

As a further scheme of the invention: the number of the active vibration dampers is eight.

As a further scheme of the invention: the detection assembly comprises an antenna support, an antenna and a laser radar, the antenna support and the laser radar are fixedly mounted on the top end of the support frame, and the antennas are fixedly mounted at the two ends of the antenna support.

As a further scheme of the invention: the support frame is also provided with an Inertia Measurement Unit (IMU) for measuring inertia.

Compared with the prior art, the invention has the beneficial effects that: the active vibration reduction can be realized, stable detection is realized, the detection precision is improved, and the active vibration reduction device is simple in structure, convenient to use and high in practicability.

Other features and advantages of the present invention will be disclosed in more detail in the following detailed description of the invention and the accompanying drawings.

Drawings

FIG. 1 is a schematic view of an overall structure of a detecting member according to an embodiment of the present invention;

FIG. 2 is a schematic plan view of an active damping assembly in accordance with an embodiment of the present invention;

FIG. 3 is a cross-sectional view of an active damping assembly in an embodiment of the present invention;

FIG. 4 is a schematic plan view of an inductor in an embodiment of the invention;

fig. 5 is a diagram illustrating an effect of the active damping assembly according to the embodiment of the present invention.

The figures are numbered: hull 1, support frame 2, initiative damping component 3, survey subassembly 4, base 30, initiative shock absorber 6, inductor 5, electromagnetic relay 63, compression spring 62, slider 61, electrical control unit 7, chassis 31, pillar 32, mercury disc 52, feeler 51, signal contact 53, antenna boom 42, antenna 41, laser radar 43, inertial measurement unit 44.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the embodiment, an active damping detection element is shown in fig. 1-4, and comprises a ship body 1, a support frame 2, an active damping assembly 3 and a detection assembly 4, wherein the bottom end of the support frame 2 is fixedly installed on the ship body 1 through the main damping assembly 3, and the detection assembly 4 is fixedly installed at the upper end of the support frame 2; the active vibration damping assembly 3 comprises a base 30, a plurality of active vibration dampers 6 which are annularly arranged are arranged on the base 30, an inductor 5 is arranged on the base below the active vibration dampers 6, and the inductor 5 and the active vibration dampers 6 are correspondingly arranged; the active damper 6 comprises an electromagnetic relay 63, a compression spring 62 and a sliding block 61, wherein the electromagnetic relay 63 is fixedly mounted on the base 30, the sliding block 61 is slidably mounted on the base 30, and the compression spring 62 is arranged between the electromagnetic relay 63 and the sliding block 61; the inductor 5 and the electromagnetic relay 6 are connected to an electric control unit 7 of the ship body 1 through electric signals.

In the present embodiment, referring to fig. 2-3, the base 30 includes a chassis 31 and a pillar 32, the pillar 32 is fixed on the chassis 31, the electromagnetic relay 63 is fixed on the chassis 31, and the slider 61 is slidably mounted on the pillar 32. The chassis 31 is integrally formed with the pillar 32.

In this embodiment, referring to fig. 4, the inductor 5 includes a mercury disc 52 and a plurality of antennas 51, the antennas 51 are uniformly distributed around the mercury disc 52, and one end of each antenna 51 is connected to the mercury disc 52; a plurality of signal contacts 53 are arranged in the antenna 51, and the signal contacts 53 are connected to the electronic control unit 7 through electric signals. The antenna 51 is connected to the mercury plate 52 at one end at a lower level than at the other end. The number of antennae 51 of the inductor 5 corresponds to the number of active vibration dampers 6.

In the present embodiment, the number of the active dampers 6 is eight. However, other embodiments are not limited thereto, and the number of active dampers 6 may be sixteen, with a greater number being more effective.

In this embodiment, referring to fig. 1, the detection assembly 4 includes an antenna bracket 42, an antenna 41 and a laser radar 43, the antenna bracket 42 and the laser radar 43 are both fixedly mounted on the top end of the support frame 2, and the two ends of the antenna bracket 42 are both provided with the antennas 41 fixedly mounted thereon. An Inertia Measurement Unit (IMU)44 for measuring inertia is also provided on the support frame 2.

It can be understood that both ends of the compression spring 62 are fixed on the electromagnetic relay 63 and the slider 61.

The working principle of the embodiment is as follows: as shown in fig. 1-5, when the ship hull 1 is normally at rest, the horizontal line of one end of the antenna 51 connected to the mercury disk 52 is lower than the horizontal line of the other end, and the mercury in the mercury disk 52 does not flow due to gravity, so the active damper 6 does not work. When the ship body 1 is vibrated by wind and waves, the mercury disk 52 in the inductor 5 is stressed to incline, mercury in the mercury disk 52 naturally flows into the corresponding antenna 51 due to gravity, the mercury contacts different signal contacts 53 in the antenna 51, the magnetic force of the corresponding electromagnetic relay 63 is controlled by the electric control unit 7, since the compression spring 62 is compressed by the influence of the magnetic force, when the magnetic force of the corresponding electromagnetic relay 63 is influenced, the compression state of the compression spring 62 is changed, and the height of the slider 61 is adjusted, as shown in fig. 5, when the ship body 1 vibrates and inclines to the left, the mercury in the mercury disk 52 naturally flows into the antenna 51 at the left side due to gravity, the magnetic force of the corresponding electromagnetic relay 63 is controlled by the electronic control unit 7, and then adjust left slider 61 height, make support frame 2 be in the horizontality as far as possible to realize stable detection, and then improve the precision of surveying.

Because the number of the active vibration dampers 6 in the embodiment is eight, three active vibration dampers 6 can work normally, when the number is large, the number of the active vibration dampers 6 which work relatively can be more, and the vibration damping effect can be better.

The invention provides an active vibration reduction detection element, which can actively reduce vibration so as to realize stable detection and improve detection precision, and has the advantages of simple structure, convenience in use, strong practicability and high reliability.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.