CN114858160A

CN114858160A - Navigation positioning recorder

Info

Publication number: CN114858160A
Application number: CN202210781191.4A
Authority: CN
Inventors: 孙静; 何智明; 林明哲; 程云
Original assignee: Shenzhen Zhaoxing Botuo Technology Co ltd
Current assignee: Shenzhen Zhaoxing Botuo Technology Co ltd
Priority date: 2022-07-05
Filing date: 2022-07-05
Publication date: 2022-08-05
Anticipated expiration: 2042-07-05
Also published as: CN114858160B

Abstract

The invention relates to a marine positioning recorder, which comprises a shell, an MCU module, an antenna module and a battery, wherein the shell is provided with a containing cavity, the MCU module is arranged in the containing cavity, the MCU module has the functions of calculation and storage and is used for storing and calculating satellite signals received by a radio receiving component, the antenna module comprises a radio receiving component and a radio transmitting component, the radio receiving component is mainly used for receiving the satellite signals and can also receive signals on a terrestrial base station when the radio receiving component is close to the terrestrial, the radio transmitting component is mainly used for transmitting the signals to the terrestrial base station and other radio receiving devices, the antenna module is arranged in the containing cavity, and the antenna module and the MCU module are positioned at two opposite angles in the containing cavity, so that the signal interference of the MCU module on the antenna module can be avoided to a great extent, and the signal identification capability can be improved, the positioning accuracy is improved.

Description

Navigation positioning recorder

Technical Field

The invention relates to the technical field of navigation equipment, in particular to a navigation positioning recorder.

Background

The navigation positioning recorder is widely applied to navigation activities, is a safety guarantee of the marine activities, and when a ship is in distress at sea, the navigation positioning recorder is required to send positioning information to the outside so as to facilitate quick rescue and facilitate subsequent checking of the state of the ship before the ship is in distress. However, the marine positioning recorder in the related art has the following problems:

1. on the sea surface, the signals are weak and have poor anti-interference capability due to the fact that the signals are far away from the land base station.

2. In some harsh environments, especially when a ship sinks into the sea bottom, it is often necessary to float the marine positioning recorder on the sea surface in order to avoid the marine positioning recorder from being out of function, and the marine positioning recorder is usually difficult to find in a short time due to its small size, but has a risk of battery power exhaustion after a long time.

3. Since the marine locator recorder floats on the sea surface and floats with the water flow, the marine locator recorder may be found at a position far from the position where the ship sinks into the sea bottom, which makes it difficult for the ship to search.

Disclosure of Invention

The invention aims to provide a navigation positioning recorder which has strong anti-interference capability, sufficient electric quantity and convenient ship searching.

According to an aspect of the invention, there is provided a marine positioning recorder comprising:

a housing formed with an accommodation cavity;

the MCU module is arranged in the accommodating cavity;

the antenna module comprises a radio receiving component and a radio transmitting component, the antenna module is arranged in the accommodating cavity, and the antenna module and the MCU module are positioned at two opposite angles in the accommodating cavity; and

and the battery is used for supplying power to the MCU module and the antenna module.

As an embodiment of the present invention, the marine positioning recorder further includes an interference prevention plate disposed in the housing, the interference prevention plate divides the accommodating cavity into a first accommodating cavity and a second accommodating cavity, the MCU module is disposed in the first accommodating cavity, and the battery and the antenna module are disposed in the second accommodating cavity.

As an embodiment of the present invention, the marine positioning recorder further includes a power generation device for charging the battery, the power generation device includes a stator, a rotor, a rotating shaft, and a driving blade, the stator is disposed in the accommodating cavity, the rotor is disposed in the accommodating cavity and can rotate relative to the stator, the rotating shaft is connected to the rotor and at least partially extends out of an outer wall of the housing, and the driving blade is mounted on a portion of the rotating shaft extending out of the housing.

As an embodiment of the present invention, the rotating shaft includes a first rotating shaft and a second rotating shaft, the first rotating shaft and the second rotating shaft are both provided with the driving blade, the two driving blades are arranged oppositely, the driving blade mounted on the first rotating shaft is a first driving blade, the driving blade mounted on the second rotating shaft is a second driving blade, and the first driving blade and the second driving blade have different resistances to water flow when being impacted by water flow of the same magnitude.

As an embodiment of the present invention, the first driving blade includes a first fixing portion connected to the first rotating shaft and having a cylindrical shape, and a plurality of first blade portions connected to a periphery of the first fixing portion at regular intervals around the first fixing portion, each of the first blade portions has a first water blocking surface and a second water blocking surface opposite to each other, and a distance between the first water blocking surface and the second water blocking surface gradually increases in a radially outward direction of the first fixing portion;

the second driving blade comprises a second fixing part and a plurality of second blade parts, wherein the second fixing part is connected with the second rotating shaft and is cylindrical, the second blade parts are wound on the second fixing part and are connected with the periphery of the second fixing part at equal intervals, each second blade part is provided with a third water blocking surface and a fourth water blocking surface which are opposite, and the distance between the third water blocking surface and the fourth water blocking surface gradually becomes larger and then becomes smaller along the radial outward direction of the second fixing part.

As an embodiment of the present invention, the marine positioning recorder further includes a driving motor, a rotating mechanism, and a ranging module, the driving motor is disposed in the accommodating cavity, the driving motor is connected to the second rotating shaft and can drive the second rotating shaft to rotate, the rotating mechanism is linked with the second rotating shaft and can drive the axial direction of the second rotating shaft to change direction relative to the housing, the MCU module can control the rotating mechanism and the driving motor according to information fed back by the ranging module, and the ranging module can measure the distance between the marine positioning recorder and the position where the ship sinks.

As an embodiment of the present invention, the second driving blade is made of an acrylic material, the second driving blade encloses to form a working cavity, the power generation device further includes an electrode plate, a sphere and an electric potential energy output circuit, the electrode plate encloses to form an ellipsoidal movement cavity, the sphere can be rolled in the movement cavity, the sphere is made of plastic, the electric potential energy output circuit is electrically connected to the electrode plate and the sphere, and the electric potential energy output circuit is electrically connected to the battery.

As an embodiment of the invention, the oblateness alpha of the motion cavity is not less than 0.25, the ratio of the radius r of the sphere to the length b of the short axis of the motion cavity is between 0.3 and 0.6, and the ratio of the distance d between the adjacent electrode plates to the length b of the short axis of the motion cavity is between 0.05 and 0.1.

As an embodiment of the present invention, the marine positioning recorder further includes a floating member provided on the housing, the weight of the floating member being smaller than the weight of the housing, the floating member being capable of always floating above the water surface.

As an embodiment of the present invention, the marine positioning recorder further includes a gyroscope, an accelerometer, a high pass filter and a low pass filter, which are disposed in the accommodating cavity, wherein the high pass filter is used for filtering a high frequency signal of the accelerometer, and the low pass filter is used for filtering a low frequency signal of the gyroscope.

The embodiment of the invention has the following beneficial effects:

in the marine positioning recorder in the embodiment, the antenna module and the MCU module are positioned at two opposite angles in the accommodating cavity, so that signal interference of the MCU module to the antenna module can be avoided to a great extent, the signal identification capability can be improved, and the positioning accuracy is improved; the battery sets up and is used for MCU module and antenna module power supply in acceping the intracavity.

In addition, the driving vane is driven by rivers and rotates in the sea, thereby can drive the pivot through the driving vane and rotate, the pivot rotates and can drive the rotor again and rotate, thereby make the relative stator of rotor rotate, thereby can produce the electric energy, and the electric energy storage that will produce is in the battery, because most time is not calm in the ocean, consequently most time of this power generation facility all can generate electricity and to the storage of battery, thereby make the electric quantity of battery in this embodiment be in basically with incomplete state, thereby can not appear because of the circumstances that the outage can't receive and transmit wireless signal, the standby duration of navigation positioning record appearance has been improved greatly, the search time of searching team has also been improved greatly, the condition that can't find navigation positioning record appearance can no longer appear basically.

In addition, because the electric polarity of the spheroid that plastics were made and the plate electrode that the metal was made differs greatly, the cooperation of the two has better friction electrification effect, because spheroid and plate electrode have different polarity (promptly have different constraint ability to the electron), the relative motion (contact, collision and roll) of the two can make them take on different friction charge, and under the electrostatic induction effect, the spheroid can make two electrodes produce the potential difference, this will drive the friction charge on two electrodes and take place directional movement through the potential energy output circuit, with the change of balanced potential difference, and then produce the potential energy, the potential energy that produces is inputed to the battery through the potential energy output circuit, thereby make this power generation facility's generating efficiency further improve.

In addition, the second rotating shaft is driven to rotate through the driving motor, the direction of the second rotating shaft is driven to change through the rotating mechanism, so that the walking direction of the navigation positioning recorder can be changed, and the ranging module can be used for measuring the distance between the ship body and the navigation positioning recorder. When the distance measuring module measures that the distance between the navigation positioning recorder and the sunken ship position is larger than the radius r of a safe area, the MCU module controls the driving motor to work and drives the second rotating shaft to rotate, meanwhile, the MCU module can change the walking direction of the navigation positioning recorder through controlling the rotating mechanism and drive the navigation positioning recorder to return to the safe area again, so that the navigation positioning recorder can be always kept in the safe area within a certain time after a sunken ship accident occurs, and a team member can be conveniently and quickly find a ship which is in distress after finding the navigation positioning recorder.

In addition, the track that the navigation positioning recorder drifts on the sea when the ship goes on business can be calculated through the gyroscope and the accelerometer, and when the navigation positioning recorder is found, the position of the ship can be found through reversely pushing the track of the navigation positioning recorder, so that the efficiency of finding the ship can be greatly improved, and the problem that the navigation positioning recorder is too far away from the ship position where the ship goes on business after drifting on the sea surface is not needed to be worried. In addition, the accelerometer measures the inclination angle, the dynamic response of the accelerometer is slow, signals are unavailable at high frequency, and the high-frequency signals of the accelerometer are filtered through a high-pass filter, so the working precision of the accelerometer can be improved; the gyroscope has fast response and can measure an inclination angle after integration, but signals are not good at a low-frequency section due to null drift and the like, the low-frequency signals of the gyroscope are filtered through the low-pass filter, so that the working precision of the gyroscope can be improved, the gyroscope and the accelerometer can be combined, the gyroscope and the accelerometer can be integrated, signals which are good at high frequency and low frequency are obtained, and the track accuracy of the navigation positioning recorder is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a marine positioning recorder according to an embodiment of the present invention;

FIG. 2 is a schematic view of a portion of the marine positioning recorder of FIG. 1;

FIG. 3 is a cross-sectional view of the second driver blade of FIG. 1;

FIG. 4 is a simplified diagram of the drive portion of the marine positioning recorder according to one embodiment of the present invention;

wherein: 100. a housing; 101. an accommodating cavity; 102. a first accommodating cavity; 103. a second accommodating cavity; 200. an MCU module; 300. an antenna module; 310. a radio transmission component; 320. a radio receiving component; 400. a battery; 500. an interference prevention plate; 600. a power generation device; 610. a stator; 620. a rotor; 630. a rotating shaft; 631. a first rotating shaft; 632. a second rotating shaft; 640. a driving blade; 641. a first driving blade; 6411. a first fixed part; 6412. a first blade section; 6413. a first water blocking surface; 6414. a second water blocking surface; 642. a second driving blade; 6421. a second fixed part; 6422. a second blade portion; 6423. a third water blocking surface; 6424. a fourth water blocking surface; 6425. a working chamber; 650. an electrode plate; 651. a motion cavity; 660. a sphere; 670. a cardan shaft; 671. a first stage; 672. a second stage; 680. a gear structure; 700. a float member; 800. a drive motor; 900. a rotation mechanism.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 4, an embodiment of the present invention provides a marine positioning recorder, and the marine positioning recorder in this embodiment is mainly used for marine positioning and recording ship information, such as recording work information of a ship and communication information of crews.

The marine positioning recorder in the embodiment comprises a housing 100, an MCU 200, an antenna module 300 and a battery 400, wherein the housing 100 forms a receiving cavity 101, the MCU 200 is disposed in the receiving cavity 101, the MCU 200 has computing and storing functions and is used for storing and computing satellite signals received by the radio receiving element 320, the antenna module 300 comprises a radio receiving element 320 and a radio transmitting element 310, the radio receiving element 320 is mainly used for receiving satellite signals and receiving signals from a terrestrial base station when the radio receiving element is close to the terrestrial, the radio transmitting element 310 is mainly used for transmitting signals to the terrestrial base station and other radio receiving devices, the antenna module 300 is disposed in the receiving cavity 101, and the antenna module 300 and the MCU 200 are located at two opposite angles in the receiving cavity 101, because the antenna module 300 and the MCU 200 are located at two opposite angles in the receiving cavity 101, therefore, signal interference of the MCU module 200 to the antenna module 300 can be avoided to a great extent, and further, the signal identification capability and the positioning accuracy can be improved; the battery 400 is disposed in the receiving cavity 101 and is used to supply power to the MCU module 200 and the antenna module 300.

Further, in order to further avoid interference of the MCU module 200 on the antenna module 300, the marine positioning recorder further includes an anti-interference plate 500 disposed in the casing 100, the anti-interference plate 500 divides the accommodating cavity 101 into a first accommodating cavity 102 and a second accommodating cavity 103, the MCU module 200 is disposed in the first accommodating cavity 102, and the battery 400 and the antenna module 300 are disposed in the second accommodating cavity 103. The interference of the MCU module 200 to the antenna module 300 is further reduced through the blocking effect of the interference preventing plate 500 to the MCU module 200 and the antenna module 300, and the positioning precision of the navigation positioning recorder is further improved.

Preferably, the interference preventing plate 500 is made of iron. Of course, the interference preventing plate 500 may be made of other interference-resistant materials.

In order to improve the service life of the battery 400, in an embodiment, the marine positioning recorder further includes a power generating device 600 for charging the battery 400, the power generating device 600 includes a stator 610, a rotor 620, a rotating shaft 630 and a driving blade 640, the stator 610 is disposed in the receiving cavity 101, the rotor 620 is disposed in the receiving cavity 101 and can rotate relative to the stator 610, the rotating shaft 630 is connected with the rotor 620 and at least partially extends out of the outer wall of the casing 100, and the driving blade 640 is mounted on a portion of the rotating shaft 630 extending out of the casing 100. In this embodiment, the driving blade 640 is driven by water flow to rotate in the sea, so that the driving blade 640 can drive the rotating shaft 630 to rotate, the rotating shaft 630 rotates to drive the rotor 620 to rotate, so that the rotor 620 rotates relative to the stator 610, so that electric energy can be generated, the generated electric energy is stored in the battery 400, most of the time of the power generation device 600 can generate power and store the generated power into the battery 400 because most of the time in the sea is not calm, so that the electric quantity of the battery 400 is basically in an incomplete state in the embodiment, and the situation that a wireless signal cannot be received and transmitted due to power failure cannot occur is avoided, the standby time of the marine positioning recorder is greatly prolonged, the searching time of a searching team is also greatly prolonged, and the situation that the marine positioning recorder cannot be found is basically avoided.

Referring to fig. 1-4, in one embodiment, the marine positioning recorder further includes a floating member 700 disposed on a side of the housing 100 adjacent to the side where the driving blade 640 is disposed, where the driving blade 640 is not disposed, and the weight of the floating member 700 is less than that of the housing 100, and the floating member 700 can always float on the water surface. In particular, the floatation member 700 is made of a relatively buoyant material, such as plastic or the like. In this embodiment, because the floating member 700 is disposed on the casing 100 and is not provided with the driving blade 640 and is disposed on the side adjacent to the driving blade 640, the floating member 700 can float on the water surface all the time, so that the axial direction of the rotating shaft 630 can be parallel to the water surface, and the part of the driving blade 640 can be located below the water surface all the time, thereby ensuring that the driving blade 640 is driven by the water flow to rotate the rotating shaft 630, and improving the power generation efficiency.

In order to enable the portion of the driving blade 640 to float out of the water, the portion of the driving blade 640 may be located above the water surface by increasing the buoyancy of the housing 100, or the portion of the driving blade 640 may be located above the water surface by setting the outer diameter of the driving blade 640 large enough.

The shape of the float member 700 is not limited, and may be, for example, a column shape, a cone shape, or the like, and of course, the shape of the housing 100 is not limited, and may be a rectangle, a sphere, an ellipsoid, or the like.

Referring to fig. 1-2, in an embodiment, the rotating shaft 630 includes a first rotating shaft 631 and a second rotating shaft 632, the driving blade 640 mounted on the first rotating shaft 631 is a first driving blade 641, the driving blade 640 mounted on the second rotating shaft 632 is a second driving blade 642, the first driving blade 641 is connected to the power generation device 600 through the first rotating shaft 631, the second driving blade 642 is connected to the power generation device 600 through the second rotating shaft 632, and the first driving blade 641 and the second driving blade 642 are disposed opposite to each other.

Preferably, the first driving blade 641 and the second driving blade 642 have different resistances to water flow when they are impacted by water flow of the same magnitude.

On the basis of two driving blades 640, referring to fig. 1-2, in an embodiment, the first driving blade 641 includes a first fixing portion 6411 connected to the first rotating shaft 631 and a plurality of first blade portions 6412 connected to the periphery of the first fixing portion 6411 at regular intervals around the first fixing portion 6411, each first blade portion 6412 has a first water blocking surface 6413 and a second water blocking surface 6414 opposite to each other, and a distance between the first water blocking surface 6413 and the second water blocking surface 6414 gradually increases along a radially outward direction of the first fixing portion 6411.

The second driving blade 642 includes a second fixing portion 6421 connected to the second shaft 632 in a cylindrical shape, and a plurality of second blade portions 6422 connected to the periphery of the second fixing portion 6421 at regular intervals around the second fixing portion 6421, each second blade portion 6422 has a third water blocking surface 6423 and a fourth water blocking surface 6424 opposite to each other, and a distance between the third water blocking surface 6423 and the fourth water blocking surface 6424 gradually increases and then gradually decreases along a radially outward direction of the second fixing portion 6421.

In this embodiment, because the distance between the first water blocking surface 6413 and the second water blocking surface 6414 gradually increases along the radially outward direction of the first fixing portion 6411, when the first water blocking surface 6413 and the second water blocking surface 6414 face the impact of water flow, the water flow flows out of the first water blocking surface 6413 or the second water blocking surface 6414 along with the first water blocking surface 6413 or the second water blocking surface 6414 in the direction opposite to the initial direction of the impact of the water flow from the initial direction of the impact, so that the resistance of the first water blocking surface 6413 or the second water blocking surface 6414 to the water flow is relatively large, and the water flow can give a larger impact force to the first water blocking surface 6413 or the second water blocking surface 6414. In a radially outward direction of the second fixing portion 6421, a distance between the third water blocking surface 6423 and the fourth water blocking surface 6424 gradually increases and then gradually decreases. When the third water blocking surface 6423 or the fourth water blocking surface 6424 faces the impact of water flow, the water flow flows out of the third water blocking surface 6423 or the fourth water blocking surface 6424 along with the third water blocking surface 6423 or the fourth water blocking surface 6424 in the same direction as the initial direction of the water flow impact, so that the resistance of the third water blocking surface 6423 or the fourth water blocking surface 6424 to the water flow is smaller than that of the first water blocking surface 6413 or the second water blocking surface 6414, the marine positioning recorder turns to run in the process of moving away from the ship, and the speed of the marine positioning recorder moving away from the ship is reduced.

In order to further reduce the speed of the marine positioning recorder far away from the position where the ship sinks into the sea bottom, referring to fig. 2 and 4, in a specific embodiment, the marine positioning recorder further includes a driving motor 800, a rotating mechanism 900 and a ranging module, the driving motor 800 is disposed in the receiving cavity 101, the driving motor 800 is connected to the second rotating shaft 632, the driving motor 800 can drive the second rotating shaft 632 to rotate, the rotating mechanism 900 is linked with the second rotating shaft 632 and can drive the axial direction of the second rotating shaft 632 to change the direction relative to the housing 100, the MCU module 200 can control the rotating mechanism 900 and the driving motor 800 according to the information fed back by the ranging module, the battery 400 includes a first storage battery and a second storage battery, the first storage battery is electrically connected to the driving motor 800 and is mainly used for providing electric energy for the driving motor 800, the second storage battery is electrically connected to the MCU module 200 and the antenna module 300 respectively, the electric energy is mainly provided for the MCU module 200 and the antenna module 300, the power generation device 600 is electrically connected with the second storage battery, the power generation device 600 mainly charges the second storage battery, and when the second storage battery is fully charged, the power generation device 600 charges the first storage battery. In this embodiment, the driving motor 800 drives the second rotating shaft 632 to rotate, and the rotating mechanism 900 drives the second rotating shaft 632 to change the direction in the axial direction, so that the traveling direction of the marine positioning recorder can be changed, and the distance measuring module can be used for measuring the distance between the ship body and the marine positioning recorder. In this embodiment, the sunken ship position of the ship body is set as the center of a circle, the area with the radius r is a safe area, when the distance measuring module measures that the distance between the navigation positioning recorder and the sunken ship position is greater than the radius r of the safe area, the MCU module 200 controls the driving motor 800 to operate to drive the second rotating shaft 632 to rotate, and meanwhile, the MCU module 200 can change the walking direction of the navigation positioning recorder by controlling the rotating mechanism 900 to drive the navigation positioning recorder to return to the safe area again, so that the navigation positioning recorder can be kept in the safe area all the time within a certain time after a sunken ship accident occurs, and a search team member can find the ship quickly after finding the navigation positioning recorder.

Specifically, the second rotating shaft 632 is connected to the rotor 620 through a universal shaft 670, the universal shaft 670 has a first segment 671 and a second segment 672 which are movably connected to each other, the first segment 671 is connected to the rotor 620, the second segment 672 is connected to the second rotating shaft 632, the driving motor 800 is connected to the first segment 671 through a gear structure 680, the rotating mechanism 900 is a linear motor, an output end of the linear motor can be abutted to the second segment 672, the second segment 672 can be driven to move relative to the first segment 671 so as to change an angle change of the second segment 672 relative to the housing 100, and the second rotating shaft 632 can change along with the angle change of the second segment 672 relative to the housing 100, so as to achieve the purpose of changing the walking direction of the marine positioning recorder.

In order to further improve the power generation efficiency, referring to fig. 3, in an embodiment, the second driving blade 642 is made of an acrylic material, so as to perform the functions of supporting and blocking water, the second driving blade 642 encloses to form a working cavity 6425, the power generation apparatus 600 further includes an electrode plate 650 disposed in the working cavity 6425, a sphere 660, and an electrical potential energy output circuit (not shown in the figure), the electrode plate 650 is preferably an aluminum electrode plate, the aluminum electrode plate encloses to form an ellipsoidal movement cavity 651, the sphere 660 is rollably disposed in the movement cavity 651, the sphere 660 is made of a plastic material, preferably a PTFE material, the electrical potential energy output circuit is electrically connected to the aluminum electrode plate and the sphere 660, and the electrical potential energy output circuit is electrically connected to the battery 400. In this embodiment, since the aluminum electrode plate is made of aluminum material and the sphere 660 is made of PTFE material, since the electric polarities of the PTFE (polytetrafluoroethylene) sphere 660 and the aluminum electrode plate are different, the two are matched to have a better triboelectric effect, since the sphere 660 and the aluminum electrode plate have different polarities (i.e. different binding capacities for electrons), the relative movement (contact, collision and rolling) of the two electrodes can make them carry different triboelectric charges, and under the action of electrostatic induction, the sphere 660 can generate a potential difference between the two electrodes, which drives the triboelectric charges on the two electrodes to directionally move through the potential energy output circuit to balance the change of the potential difference, thereby generating potential energy, which is input to the battery 400 through the potential energy output circuit, preferably, the generated potential energy is input to the second storage battery through the potential energy output circuit, thereby further improving the power generation efficiency of the power generation device 600 in the present embodiment.

When the driving motor 800 works, the second driving blade 642 can rotate at a faster speed, so that the sphere 660 in the movement cavity 651 can receive a certain centrifugal force when rotating along with the second driving blade 642, thereby improving the pressure on the aluminum electrode plate, thereby increasing the potential difference generated between the two electrodes, i.e., the power generation efficiency is higher, furthermore, because the second driving blade 642 rotates, thereby enabling the sphere 660 to have a faster speed when rolling relative to the aluminum electrode plate, thereby further improving the power generation efficiency, when the driving motor 800 works, the speed of the sphere 660 in the embodiment when rolling relative to the aluminum electrode plate is fastest, at this moment, the power generation efficiency is highest, when the driving motor 800 does not work, the second driving blade 642 is mainly driven to rotate by water flow, at this moment, the power generation efficiency is lower than the power generation efficiency when the driving motor 800 works.

Of course, in some embodiments, the aluminum electrode plate can be replaced by the electrode plate 650 made of some other metal material.

Preferably, the length of the long axis of the motion cavity 651 is a, the length of the short axis of the motion cavity 651 is b, the oblateness α of the motion cavity 651 is not less than 0.25, α = (a-b)/a, the ratio of the radius r of the sphere 660 to the length b of the short axis of the motion cavity 651 is between 0.3 and 0.6, and the ratio of the spacing d between adjacent aluminum electrode plates to the length b of the short axis of the motion cavity 651 is between 0.05 and 0.1. In this embodiment, it is ensured that the size of the second driving blade 642 is not too large, and sufficient power supply is ensured.

In order to further improve the efficiency of finding the accident position of the ship, in an embodiment, the marine positioning recorder further includes a gyroscope (not shown), an accelerometer (not shown), a high-pass filter (not shown) and a low-pass filter (not shown), the high-pass filter is used for filtering a high-frequency signal of the accelerometer, and the low-pass filter is used for filtering a low-frequency signal of the gyroscope, which are disposed in the accommodating cavity 101. In this embodiment, can calculate the track that the navigation positioning record appearance drifted on the sea when the ship is gone about through gyroscope and accelerometer, when finding the navigation positioning record appearance, can find the position of ship through the track of reverse thrust navigation positioning record appearance to can improve the efficiency of finding the ship greatly, also need not worry because the navigation positioning record appearance drifts the problem too far away from ship position of going about after the sea. In addition, the accelerometer measures the inclination angle, the dynamic response is slow, the signal is unavailable at high frequency, and the high-frequency signal of the accelerometer is filtered by a high-pass filter, so the working precision of the accelerometer can be improved; the gyroscope has fast response and can measure an inclination angle after integration, but because of null shift and the like, signals are not good in a low-frequency section, the low-frequency signals of the gyroscope are filtered through the low-pass filter, so that the working precision of the gyroscope can be improved, the gyroscope and the accelerometer can be combined, the advantages of the gyroscope and the accelerometer can be combined, signals which are good in high frequency and low frequency are obtained, and the track accuracy of the navigation positioning recorder is improved.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A marine positioning recorder, said marine positioning recorder comprising:

a housing formed with an accommodation cavity;

the MCU module is arranged in the accommodating cavity;

the battery is arranged in the accommodating cavity and used for supplying power to the MCU module and the antenna module.

2. The marine positioning recorder of claim 1, further comprising an interference prevention plate disposed within the housing, the interference prevention plate dividing the receiving cavity into a first receiving cavity and a second receiving cavity, the MCU module disposed within the first receiving cavity, the battery and the antenna module disposed within the second receiving cavity.

3. The marine positioning recorder of claim 2, further comprising a power generating device for charging the battery, wherein the power generating device comprises a stator, a rotor, a shaft, and a driving blade, the stator is disposed in the accommodating cavity, the rotor is disposed in the accommodating cavity and can rotate relative to the stator, the shaft is connected to the rotor and at least partially extends out of the outer wall of the housing, and the driving blade is mounted on a portion of the shaft extending out of the housing.

4. The marine positioning recorder of claim 3, wherein the shaft comprises a first shaft and a second shaft, the first shaft and the second shaft are both provided with the driving blade, the two driving blades are arranged oppositely, the driving blade arranged on the first shaft is a first driving blade, the driving blade arranged on the second shaft is a second driving blade, and the first driving blade and the second driving blade have different resistance to water flow when being impacted by water flow of the same size.

5. The marine positioning recorder according to claim 4, wherein the first driving blade includes a first fixing portion connected to the first rotating shaft and having a cylindrical shape, and a plurality of first blade portions connected to a periphery of the first fixing portion at regular intervals around the first fixing portion, each of the first blade portions having a first water blocking surface and a second water blocking surface opposite to each other, and a distance between the first water blocking surface and the second water blocking surface becomes gradually larger in a radially outward direction of the first fixing portion;

6. The marine positioning recorder of claim 5, further comprising a driving motor, a rotating mechanism and a ranging module, wherein the driving motor is disposed in the accommodating cavity, the driving motor is connected to the second rotating shaft and can drive the second rotating shaft to rotate, the rotating mechanism is linked with the second rotating shaft and can drive the second rotating shaft to change the direction relative to the housing in the axial direction, the MCU module can control the rotating mechanism and the driving motor according to information fed back by the ranging module, and the ranging module can measure the distance between the marine positioning recorder and the position of the ship sunk.

7. The marine positioning recorder of claim 6, wherein the second driving blade is made of acrylic material, the second driving blade encloses to form a working chamber, the power generating device further comprises an electrode plate, a sphere and an electric potential energy output circuit, the electrode plate encloses to form an ellipsoidal movement chamber, the sphere can be rolled in the movement chamber, the sphere is made of plastic, the electric potential energy output circuit is electrically connected with the electrode plate and the sphere, and the electric potential energy output circuit is electrically connected with the battery.

8. The marine positioning recorder of claim 7, wherein the oblateness α of the motion cavity is not less than 0.25, the ratio of the radius r of the sphere to the minor axis length b of the motion cavity is between 0.3 and 0.6, and the ratio of the spacing d between adjacent electrode plates to the minor axis length b of the motion cavity is between 0.05 and 0.1.

9. The marine positioning recorder of claim 4, further comprising a float disposed on a side of the housing not having the drive blade, the float having a weight less than a weight of the housing, the float being capable of consistently floating above the water surface.

10. The marine positioning recorder of claim 1, further comprising a gyroscope, an accelerometer, a high pass filter and a low pass filter disposed within the cavity, the high pass filter for filtering high frequency signals from the accelerometer and the low pass filter for filtering low frequency signals from the gyroscope.