CN114111968A - Water level energy monitoring system and method based on graphene sensing measurement technology - Google Patents
Water level energy monitoring system and method based on graphene sensing measurement technology Download PDFInfo
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- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/40—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using bands or wires as transmission elements
- G01F23/44—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using bands or wires as transmission elements using electrically actuated indicating means
- G01F23/446—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using bands or wires as transmission elements using electrically actuated indicating means using opto-electrically actuated indicating means
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Abstract
The invention provides a water level energy monitoring system and method based on a graphene sensing measurement technology, and relates to the technical field of water level energy measurement. The monitoring system includes: the device comprises a main body frame, at least four measuring units, a transmission terminal and a power supply device, wherein each measuring unit is arranged on the main body frame in a surrounding manner and used for measuring water level energy data parameters in different directions, and each measuring unit comprises a horizontal period measuring module, a longitudinal amplitude measuring module and a longitudinal flow velocity measuring module; the transmission terminal is used for transmitting the data parameters acquired by the measurement unit; the power supply device supplies power to the whole system. The invention provides a water level energy monitoring system and method based on a graphene sensing measurement technology, which are used for solving the problems that the prior art cannot accurately measure water level energy in multiple directions and multiple terrains and cannot obtain continuous comprehensive data due to the randomness of the fluctuation direction of water waves.
Description
Technical Field
The invention relates to the technical field of water level energy measurement, in particular to a water level energy monitoring system and method based on a graphene sensing measurement technology.
Background
The water level energy is the sum of kinetic energy and potential energy on the surface and inside the water body, and the sum of the energy is in direct proportion to the square of the wave amplitude of the surface wave of the water body and the fluctuation period. The water level energy is limited by the difference of factors such as different environments, different geographical conditions and the like, and the total amount of the energy stored in the water level energy is considerable but has no statistical rule and distribution characteristic. Taking the water level energy under the marine environment condition as an example, namely the ocean wave energy, the annual average power of the ocean wave is about 1.3 multiplied by 10 according to the Chinese coastal theory7kw and the actual coastal wave power is greater than the above estimate since the observation site of some of the ocean stations is in a location where the gulf or storm is small. The water level energy, namely wave energy, under the marine environmental condition exists in longitudinal and transverse dual uneven distribution due to the restriction of factors such as seabed topography, temperature and the like caused by the surge of ocean current in the ocean, so that the traditional ocean energy measuring device cannot adapt to various terrains to carry out accurate measurement and cannot obtain continuous comprehensive data.
At present, the conventional water level energy monitoring device mainly uses a wave energy monitoring device, and the device of the type generally calculates the energy of waves by monitoring the thrust of sea waves on a plane. Because the wave fluctuation direction has randomness, the existing monitoring device is difficult to ensure that the measuring surface is opposite to the wave-facing surface, so that part of wave energy is not converted into monitoring data. At present, various types of power generation devices designed and even put into production according to water level energy, mainly according to ocean wave energy, are difficult to reasonably utilize the water level energy due to lack of support of related energy monitoring data. Wave protection design of a sea reclamation construction area vigorously developed in coastal areas requires more accurate ocean energy monitoring data.
Disclosure of Invention
In view of the above disadvantages of the prior art, an object of the present invention is to provide a water level energy monitoring system and method based on a graphene sensing measurement technology, which are used to solve the problems in the prior art that the existing device cannot accurately measure water level energy in multiple directions and multiple terrains and cannot obtain continuous comprehensive data due to randomness of the fluctuation direction of water waves.
In order to achieve the above objects and other related objects, the present invention provides a water level energy monitoring system and method based on graphene sensing measurement technology.
A water level energy monitoring system based on graphene sensing measurement technology can be placed in a water body to monitor and collect water level energy data parameters, and comprises:
a main body frame;
the measuring units are arranged on the main body frame in a surrounding manner, measure water level energy data parameters in different directions and comprise a horizontal period measuring module, a longitudinal amplitude measuring module and a longitudinal flow velocity measuring module;
the transmission terminal is used for transmitting the data parameters acquired by the measurement unit;
and the power supply device supplies power to the whole system.
According to the water level energy monitoring system based on the graphene sensing measurement technology, the main body frame comprises the transverse frame rod and the longitudinal frame rod, and the transverse frame rod and the longitudinal frame rod are combined to form a cubic structure.
The water level energy monitoring system based on the graphene sensing measurement technology comprises a main body frame and an anchoring rod, wherein the anchoring rod is connected with the bottom of the main body frame and anchored into the bottom of a water body, and the main body frame is used for fixing the position of the main body frame in the water body.
In the water level energy monitoring system based on the graphene sensing measurement technology, the horizontal period measuring module comprises a stress plate and a low coherence interferometry module,
the low coherence interferometry module is fixed on the transverse frame rod, the stress plate is connected with the low coherence interferometry module, and the low coherence interferometry module is located between the transverse frame rod and the stress plate.
In the above water level energy monitoring system based on graphene sensing measurement technology, the low coherence interferometry module includes a first fixing member, a second fixing member and a sliding member,
the first fixing piece is fixedly connected with the second fixing piece, a sliding rail is arranged on the first fixing piece, the sliding piece is connected with the first fixing piece in a sliding mode, the sliding piece is hinged to the surface of the stress plate, the stress plate drives the sliding piece to slide on the sliding rail through the impact of water flow on the stress plate, and the distance between the second fixing piece and the sliding piece is changed along with the back-and-forth sliding of the sliding piece;
the second fixing piece is connected with the sliding piece through a spring, and a low-coherence interference optical fiber sensor is arranged on the spring;
and a limiting connecting rod structure is arranged between the second fixing piece and the sliding piece, two ends of the limiting connecting rod structure are respectively connected with the sliding piece and the second fixing piece, and the limiting connecting rod structure is used for limiting the sliding stroke of the sliding piece.
In the water level energy monitoring system based on the graphene sensing measurement technology, the longitudinal wave amplitude measurement module comprises a measurement floating ball and a mesh-shaped fixed structure,
the reticular fixed structure is arranged between the transverse frame rod at the top and the transverse frame rod at the bottom, the measuring floating ball is connected with the reticular fixed structure through a flexible optical cable,
the flexible optical cable is internally embedded with a graphene sensor.
In the water level energy monitoring system based on the graphene sensing measurement technology, the longitudinal flow velocity measurement module comprises a bidirectional cross cylindrical structure and a fixed rod,
the fixing rod is vertically arranged between the transverse frame rod at the top of the main body frame and the transverse frame rod at the bottom of the main body frame, the bidirectional cross cylindrical structure is fixed on the fixing rod and is uniformly arranged along the rod length direction of the fixing rod,
the bidirectional crossed cylindrical structure is internally provided with a sheet graphene sensor.
According to the water level energy monitoring system based on the graphene sensing measurement technology, the power supply device is a solar cell panel.
The water level energy monitoring system based on the graphene sensing measurement technology further comprises a cloud analysis platform, and the transmission terminal uploads the data parameters acquired by the measurement unit to the cloud analysis platform for calculation and analysis.
A water level energy monitoring method based on a graphene sensing measurement technology comprises the following steps:
the stress plate in the horizontal period measuring module is impacted by the water flow of the target measuring water body, and the stress plate transmits impact force to the low-coherence interference measuring module to measure the water level fluctuation period T and the axial strain epsilon generated by the water body fluctuation impact loadOptical fiber；
In a limited space under the constraint of a flexible optical cable, a measuring floating ball of a longitudinal wave amplitude measuring module is positioned when receiving the buoyancy of water and freely sags when not receiving the buoyancy of the water, the flexible optical cable is connected with a certain collecting point, the longitudinal wave amplitude measuring module learns the fluctuation change condition of the corresponding collecting point through the axial tensile stress change of the flexible optical cable and measures the water level wave amplitude A and the wavelength L of the collecting point;
the flaky graphene sensor of the longitudinal flow velocity measurement module bears uniform load along the water flow direction, measures the water flow velocity and reflects the water flow velocity in a measurement area through data acquisition of a plurality of acquisition pointsDistribution in the area, and finally the longitudinal flow velocity measurement module measures the water flow wave velocity Vg；
And the transmission terminal transmits the relevant parameters collected by the horizontal period measuring module and the longitudinal flow velocity measuring module to a cloud analysis platform for analysis and calculation, and the cloud analysis platform adds the potential energy and the kinetic energy of the unit wave surface width to calculate the water level energy.
The water level kinetic energy is the result of the superposition of the transverse motion and the longitudinal motion of the water particles,
the sum of potential energy and kinetic energy of the water level energy E can be expressed as:
wherein g is the acceleration of gravity and ρ is the density of water;
water level average energy flux or fluctuation cycle energy: pwComprises the following steps:
the relationship between the water level fluctuation period T and the wavelength L is:
water level average energy flux or fluctuation period energy PwCan be expressed as:
the impact load F in the water wave is: f ═ E ∈Optical fiber。
As described above, the water level energy monitoring system and method based on the graphene sensing measurement technology of the present invention at least have the following beneficial effects:
according to the invention, a plurality of measuring units are arranged in a water level energy monitoring system based on a graphene sensing measuring technology, the measuring units measure data parameters of water level energy in different directions in a water body, the data parameters in a target water level are comprehensively collected and determined, each measuring unit is provided with a horizontal period measuring module, a longitudinal wave amplitude measuring module and a longitudinal flow velocity measuring module, the data parameter quantity required by a water level fluctuation theoretical formula is directly measured through the graphene sensing measuring technology, the numerical value of the water level energy can be reflected with high precision, meanwhile, the collected data are uploaded to a cloud end analysis platform through a transmission terminal for analysis and calculation, and the water level energy value of the required target water level is accurately calculated; meanwhile, the system provided by the invention is operated by power supplied by the solar cell panel, and external energy supply equipment is not required, so that the system is more green and energy-saving.
Drawings
Fig. 1 is a schematic view showing an overall structure of a water level energy monitoring system based on a graphene sensing measurement technology according to the present invention;
FIG. 2 is a schematic view showing the arrangement of the measuring unit according to the present invention (the two-way cross tubular structure is removed);
FIG. 3 is a schematic diagram of a low coherence interferometry module of the present invention;
FIG. 4 is a schematic diagram of the connection between the low coherence interferometry module and the force-bearing plate of the present invention;
FIG. 5 is a schematic view of the arrangement of the measuring ball float according to the present invention;
FIG. 6 is a schematic structural diagram of a bidirectional cross tubular structure according to the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1 to 6. It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, and are not used for limiting the conditions of the present disclosure, so that the present disclosure is not limited to the technical essence, and any modifications of the structures, changes of the ratios, or adjustments of the sizes, can still fall within the scope of the present disclosure without affecting the function and the achievable purpose of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
The following examples are for illustrative purposes only. The various embodiments may be combined, and are not limited to what is presented in the following single embodiment.
Referring to fig. 1, the present invention provides a water level energy monitoring system based on a graphene sensing measurement technology, which can be placed in a water body to monitor and collect water level energy data parameters thereof, and includes a main body frame, at least four measurement units, a transmission terminal 1, and a power supply device 2. And all the measuring units are arranged on the main body frame in a surrounding manner to measure water level energy data parameters in different directions. The measuring unit comprises a horizontal period measuring module, a longitudinal wave amplitude measuring module and a longitudinal flow velocity measuring module. The transmission terminal 1 is used for transmitting data parameters acquired by the measuring unit, and the measuring unit is connected with the transmission terminal 1 through a signal cable to realize data transmission. The power supply device 2 supplies power to the entire system.
The number of measurement units in this embodiment is four. In the invention, a water level energy monitoring system based on a graphene sensing measurement technology is provided with a plurality of measurement units, the measurement units can measure water level energy data parameters in different directions in a target water body, and comprehensively collect and determine the data parameters in the target water level, and each measurement unit is provided with three measurement modules, namely a horizontal period measurement module, a longitudinal amplitude measurement module and a longitudinal flow velocity measurement module, which are respectively used for detecting and acquiring a water level fluctuation period T, a water level amplitude A, a water level wavelength L and a water wave flow velocity V in the target water bodygAnd the quantity of the data parameters required by the water level fluctuation theoretical formula is directly measured by the graphene sensing measurement technology, and the numerical value of the water level energy can be calculated by using the acquired data parameters with high precision.
In this embodiment, referring to fig. 1, the main body frame includes a transverse frame rod 31 and a longitudinal frame rod 32, and the transverse frame rod 31 and the longitudinal frame rod 32 are made of carbon fiber material, so that the main body frame is not corroded by the use environment under the condition of ensuring the sufficient overall strength and stability of the device. The transverse frame rods 31 and the longitudinal frame rods 32 are combined to form a cubic structure, and the measuring units are installed on four side surfaces of the main body frame and used for collecting water level energy data parameters in four directions in a target water body.
In the present embodiment, referring to fig. 1, the main body frame further includes an anchoring rod 33, the anchoring rod 33 is connected to the bottom of the main body frame, and the anchoring rod 33 is anchored into the water body at a position where the main body frame is fixed in the water body. When the whole system is placed in a water body, in order to avoid the situation that the whole system drifts along with waves due to the impact of water waves and water flows and the position of the system cannot be kept stable to cause inaccurate measured data, the anchoring rod 33 is inserted into the whole water body bottom fixing system to ensure that the whole device is relatively static relative to the ground of a target water body in the measuring process, so that the relative error of measurement is reduced, and the measured data is more accurate.
In the present embodiment, referring to fig. 1-4, the horizontal period measuring module includes a stress plate 41 and a low coherence interferometry module 42, and the housings of the stress plate 41 and the low coherence interferometry module 42 are made of carbon fiber material manufactured by additive manufacturing technology, so as to meet the structural requirement of strength of measurement and protect the whole system from being corroded by the use environment.
The low coherence interferometry module 42 is fixed to the cross-frame bar 31, the force-bearing plate 41 is connected to the low coherence interferometry module 42, and the low coherence interferometry module 42 is located between the cross-frame bar 31 and the force-bearing plate 41. The low coherence interferometry module 42 comprises a first fixing piece 421, a second fixing piece 422 and a sliding piece 423, wherein the first fixing piece 421 and the second fixing piece 422 are fixedly connected, the first fixing piece 421 is provided with a sliding track 4211, the sliding piece 423 is slidably connected with the first fixing piece 421, the sliding piece 423 is hinged to four corners of the surface of the stress plate 41, a spherical part of a hinge joint 427 of the first fixing piece 421 and the sliding piece 423 are rigidly connected, and a connecting part of the hinge joint 427 and the stress plate 41 is in a flat section shape. The force bearing plate 41 drives the sliding piece 423 to slide on the sliding track 4211 by the impact of the water flow on the force bearing plate, and the distance between the second fixed piece 422 and the sliding piece 423 changes along with the back-and-forth sliding of the sliding piece 423. The low coherence interference module is applied at a small node point, and the area of the force-receiving plate 41 is large, so that a wider range of impact action can be obtained by the force-receiving plate 41 being impacted. The second fixing part 422 and the sliding part 423 are connected through a spring 424, a low coherence interference optical fiber sensor 425 is arranged on the spring 424, water flow impacts the stress plate 41, the sliding part 423 is driven to slide, the spring 424 is compressed or stretched, and data parameters are acquired by the low coherence interference optical fiber sensor 425. A limiting link structure 426 is arranged between the second fixed part 422 and the sliding part 423, two ends of the limiting link structure 426 are respectively connected with the sliding part 423 and the second fixed part 422, and the limiting link structure 426 is used for limiting the sliding stroke of the sliding part 423.
In the present embodiment, referring to fig. 1, fig. 2 and fig. 5, the longitudinal wave amplitude measuring module includes a measuring floating ball 51 and a net-shaped fixing structure 52, and the net-shaped fixing structure 52 is made of a carbon fiber material manufactured by an additive manufacturing technique. The net fixing structure 52 is provided between the lateral frame bars 31 of the top of the main body frame and the lateral frame bars 31 of the bottom of the main body frame. The measurement floating ball 51 is connected with the reticular fixed structure 52 through a flexible optical cable 53, and a graphene sensor is embedded in the flexible optical cable 53. The graphene sensor is a high-photosensitivity sensor, is suitable for high-precision measurement in various use occasions, and has a large dynamic measurement range. Measure floater 51 and immerse in measuring the water, when measuring water level change, the buoyancy that measurement floater 51 received changes equally, receive its influence, lead to measuring floater 51 and freely remove in certain spatial dimension, the buoyancy that measurement floater 51 received changes the atress condition that can make the flexible optical cable 53 rather than being connected and takes place to show the change, thereby carry out accurate collection to water level amplitude of wave change information, and through set up a plurality of collection points in the system, form the collection of multidimension to the multipoint mode, synthesize the data of all collection points, the three-dimensional undulant condition of reaction horizontal plane that synthesizes.
In this embodiment, please refer to fig. 1 and 6, the longitudinal flow velocity measurement module includes a bidirectional cross cylindrical structure 61 and a fixing rod 62, the bidirectional cross cylindrical structure 61 and the fixing rod 62 are made of carbon fiber materials manufactured by additive manufacturing technology, the fixing rod 62 is vertically disposed between the top transverse frame rod 31 and the bottom transverse frame rod 31, the bidirectional cross cylindrical structure 61 is fixed on the fixing rod 62, the bidirectional cross cylindrical structure 61 is uniformly arranged along the rod length direction of the fixing rod 62, and the sheet-shaped graphene sensor 63 is disposed inside the bidirectional cross cylindrical structure 61. The flow velocity condition is reflected by measuring the acting force of water bodies with different flow velocities, and the flow velocity distribution condition of the water bodies is comprehensively reflected in a three-dimensional manner by multi-dimensional multi-point arrangement in the system.
In this embodiment, power supply unit 2 is solar cell panel, and solar cell panel can make full use of the water and open the condition of not sheltering from, turns into the electric energy with solar energy and for the whole electric energy that provides of system, need not plus energy supply equipment, more green energy-conservation.
In this embodiment, a water level energy monitoring system based on graphite alkene sensing measurement technique still includes high in the clouds analysis platform, and transmission terminal 1 transmits the data parameter of gathering the measuring element to high in the clouds analysis platform through 5G and carries out computational analysis.
In this embodiment, a water level energy monitoring method based on a graphene sensing measurement technology includes:
the stress plate 41 in the horizontal period measuring module is impacted by the water flow of the target measuring water body and transmits the impact force to the low-coherence interference measuring module 42, so that the water level fluctuation period T and the axial strain epsilon generated by the water body fluctuation impact load can be measuredOptical fiber。
The measurement floater 51 of the longitudinal wave amplitude measurement module is arranged in a water body, the measurement floater 51 is connected with the flexible optical cable 53, when the buoyancy of water is received, the measurement floater 51 freely changes in a limited space position under the constraint of the flexible optical cable 53, and when the buoyancy of water is not received, the measurement floater 51 freely drops. The fluctuation change condition of the acquisition point is obtained through the axial tensile stress change of the flexible optical cable 53, so that the longitudinal amplitude measurement module can measure the water level amplitude A and the wavelength L of the water body with the target measurement.
And the transmission terminal 1 transmits the relevant parameters acquired by each module to a cloud analysis platform for analysis and calculation. And the cloud analysis platform adds the potential energy and the kinetic energy of the unit wave surface width to calculate the water level energy.
The water level kinetic energy is the superposition result of the transverse motion and the longitudinal motion of the water particles, and the sum of the potential energy and the kinetic energy of the water level energy E can be expressed as:
where g is the acceleration of gravity and ρ is the density of water.
Water level average energy flux or fluctuation period energy PwComprises the following steps:
the relation between the water level fluctuation period T and the wavelength L:
water level average energy flux or fluctuation period energy PwIt can also be expressed as:
the impact load F in the water wave is: f ═ E ∈Optical fiber。
Preferably, the main body frame is provided with a plurality of groups of anemometers, the anemometers are uniformly arranged in all directions on the main body frame, wind speed data parameters obtained by measurement are transmitted to the cloud analysis platform through the transmission terminal 1 by the anemometers, and wind loads are counted into the calculation results through the cloud analysis platform, so that the influence of the wind loads on the impact effect is eliminated. Because the wind load can not influence the measurement of the water level fluctuation period T and the water level amplitude A, and mainly influences the reaction of the impact force of water flow, the wind load can be calculated only by taking the wind load into the impact load.
In summary, the present invention provides a water level energy monitoring system and method based on graphene sensing measurement technology, wherein a plurality of measurement units are set up, data parameters in a target water level are collected and determined relatively comprehensively by measuring water level energy data parameters in different directions in a water body, a horizontal period measurement module, a longitudinal wave amplitude measurement module and a longitudinal flow velocity measurement module are arranged in each measurement unit, data parameter quantities required by a water level fluctuation theoretical formula are directly measured by the graphene sensing measurement technology, the numerical values of water level energy can be reflected with high precision, and meanwhile, the collected data are uploaded to a cloud analysis platform through a transmission terminal for analysis and calculation, and the water level energy value of the required target water level is calculated accurately. Meanwhile, the monitoring system provided by the invention provides power for operation through the solar cell panel, and additional energy supply equipment is not required, so that the monitoring system is more green and energy-saving. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a water level energy monitoring system based on graphite alkene sensing measurement technique, can place and monitor and collect its water level energy data parameter in the water, its characterized in that includes:
a main body frame;
the measuring units are arranged on the main body frame in a surrounding manner to measure water level energy data parameters in different directions, and each measuring unit comprises a horizontal period measuring module, a longitudinal wave amplitude measuring module and a longitudinal flow velocity measuring module;
the transmission terminal is used for transmitting the data parameters acquired by the measurement unit;
and the power supply device supplies power to the whole system.
2. The water level energy monitoring system based on graphene sensing measurement technology according to claim 1, characterized in that: the main body frame comprises a transverse frame rod and a longitudinal frame rod, and the transverse frame rod and the longitudinal frame rod are combined to form a cubic structure.
3. The water level energy monitoring system based on graphene sensing measurement technology according to claim 1, characterized in that: the main body frame further comprises an anchoring rod, the anchoring rod is connected with the bottom of the main body frame, and the anchoring rod is anchored into the bottom of the water body to fix the position of the main body frame in the water body.
4. The water level energy monitoring system based on graphene sensing measurement technology according to claim 1, characterized in that: the horizontal period measuring module comprises a stress plate and a low coherence interferometry module, the low coherence interferometry module is fixed on a transverse frame rod of the main body frame, the stress plate is connected with the low coherence interferometry module, and the low coherence interferometry module is located between the transverse frame rod and the stress plate.
5. The water level energy monitoring system based on graphene sensing measurement technology according to claim 4, wherein: the low-coherence interferometry module comprises a first fixing piece, a second fixing piece and a sliding piece, wherein the first fixing piece is fixedly connected with the second fixing piece, a sliding track is arranged on the first fixing piece, the sliding piece is slidably connected with the first fixing piece, the sliding piece is hinged with the surface of the stress plate, the stress plate drives the sliding piece to slide on the sliding track under the action of water flow, and the distance between the second fixing piece and the sliding piece is changed along with the back-and-forth sliding of the sliding piece;
the second fixing piece is connected with the sliding piece through a spring, and a low-coherence interference optical fiber sensor is arranged on the spring;
and a limiting connecting rod structure is arranged between the second fixing piece and the sliding piece, two ends of the limiting connecting rod structure are respectively connected with the sliding piece and the second fixing piece, and the limiting connecting rod structure limits the sliding stroke of the sliding piece.
6. The water level energy monitoring system based on graphene sensing measurement technology according to claim 1, characterized in that: the longitudinal wave amplitude measuring module comprises a measuring floating ball and a net-shaped fixing structure, the net-shaped fixing structure is arranged between the transverse frame rod at the top of the main body frame and the transverse frame rod at the bottom of the main body frame, the measuring floating ball is connected with the net-shaped fixing structure through a flexible optical cable, and a graphene sensor is embedded in the flexible optical cable.
7. The water level energy monitoring system based on graphene sensing measurement technology according to claim 1, characterized in that: the longitudinal flow velocity measurement module comprises a bidirectional cross tubular structure and a fixed rod, wherein the fixed rod is vertically arranged between the transverse frame rods at the top of the main body frame and the transverse frame rods at the bottom of the main body frame, the bidirectional cross tubular structure is fixed on the fixed rod and is arranged along the length direction of the rod of the fixed rod uniformly, and a graphene sensor is arranged inside the bidirectional cross tubular structure.
8. The water level energy monitoring system based on graphene sensing measurement technology according to claim 1, characterized in that: the power supply device is a solar panel.
9. The water level energy monitoring system based on graphene sensing measurement technology according to claim 1, characterized in that: the transmission terminal uploads the data parameters acquired by the measuring unit to the cloud analysis platform for calculation and analysis.
10. A method for utilizing a water level energy monitoring system based on a graphene sensing measurement technology is characterized in that,
the horizontal period measuring module is used for measuring a water level fluctuation period T and an axial strain epsilon generated by a water fluctuation impact loadOptical fiber；
A measuring floating ball of the longitudinal wave amplitude measuring module is connected with a flexible optical cable, the measuring floating ball is arranged in a water body and freely moves under the action of buoyancy of the water body and pulls the flexible optical cable, and axial tensile stress of the flexible optical cable fluctuates, so that the longitudinal wave amplitude measuring module measures the water level wave amplitude A and the wavelength L corresponding to a collecting point;
the graphene sensor of the longitudinal flow velocity measurement module is uniformly loaded in the water flow direction, and the longitudinal flow velocity measurement module is used for measuring the water flow wave velocity V by carrying out multi-point distribution in a measurement areag；
The transmission terminal transmits the relevant parameters collected by each module to the cloud analysis platform for analysis and calculation, and the cloud analysis platform adds the potential energy and the kinetic energy of the unit wave surface width to calculate the water level energy and the water
The sum of the potential energy and the kinetic energy of the bit energy E can be expressed as:
wherein g is the acceleration of gravity and ρ is the density of water;
water level average energy flux or fluctuation period energy PwComprises the following steps:
the relationship between the water level fluctuation period T and the wavelength L is:
obtaining the average energy flux or fluctuation period energy P of the water levelwComprises the following steps:
the impact load F in the water wave is: f ═ E ∈Optical fiber。
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