A hydrological measurement buoy and system

Abstract

The present invention discloses a hydrological measurement buoy and system, including: the sphere includes an upper hemisphere and a lower hemisphere which are movably connected, and a measurement buoy control unit is fixedly installed at the middle position of the sphere. The measurement buoy control unit includes a mobile communication module. A plurality of first holes are opened at the middle position of the upper hemisphere, and each first hole fixes a module in the measurement buoy control unit. A plurality of second holes are opened at the middle position of the lower hemisphere, and each second hole fixes a module in the measurement buoy control unit, so that the center of gravity of the sphere coincides with the center of gravity of the measurement buoy control unit. The hydrological measurement buoy of the present application is less affected by the complex external environment, simple to operate and suitable for large-scale use.

Description

Technical Field

[0001] The present invention belongs to the technical field of hydrological survey buoys, and particularly relates to a hydrological measurement buoy and system. Background Art

[0002] Water level, flow rate, precipitation, sediment, evaporation, infiltration, water temperature, ice condition, water chemistry, groundwater, etc. are collectively called hydrological data. Hydrological data is the basis for various hydrological analysis work. The main source of hydrological data is the long-term observation of various hydrological elements by hydrological stations. The observation of various hydrological elements is called hydrological measurement.

[0003] In the process of hydrological measurement, buoys are used. A buoy refers to a navigation mark floating on the water surface, which is anchored at a designated position to mark the range of the waterway, indicate shoals, navigation obstacles, or represent a water surface aid for special purposes.

[0004] Currently, the existing hydrological measurement buoys are mainly divided into the following two categories:

[0005] 1. A fixed buoy with a single function. This buoy needs to be manually placed in the water area to be measured. The user end cannot receive the data measured by the buoy in real time, and the operation is cumbersome and difficult, which is not suitable for large-scale use.

[0006] 2. Some existing buoys also have the problem of poor stability. During use, when encountering bad weather or operating in a river with rapid flow, the measurement results of the hydrological measurement buoy are inaccurate. Summary of the Invention

[0007] The purpose of the present invention is to provide a hydrological measurement buoy and system to solve the above problems existing in the prior art.

[0008] To achieve the above purpose, the present invention adopts the following technical solutions:

[0009] The present invention provides a hydrological measurement buoy, including:

[0010] A sphere, the sphere includes an upper hemisphere and a lower hemisphere that are movably connected. A measurement buoy control unit is fixedly installed at the middle position of the sphere. The measurement buoy control unit includes a mobile communication module. A plurality of first holes are opened at the middle position of the upper hemisphere, and each first hole fixes a module in the measurement buoy control unit. A plurality of second holes are opened at the middle position of the lower hemisphere (4), and each second hole fixes a module in the measurement buoy control unit, so that the center of gravity of the sphere (1) coincides with the center of gravity of the measurement buoy control unit.

[0011] In some embodiments, a plurality of grooves are formed on the surface of the sphere, and a light-emitting strip and an LED lamp bead are fixed at each groove. The LED lamp bead is located below the light-emitting strip. The sphere is made of an insulating and lightweight material, and a test buoy control unit is fixedly installed at the middle position of the sphere. The test buoy control unit includes a power supply module, a positioning module, a power supply voltage transformation and regulation module, an alarm sound control module, and an LED lamp flashing module.

[0012] In some embodiments, the ends of the upper hemisphere and the lower hemisphere are connected by screw threads or snap connections, and a waterproof rubber strip is fixed at the connection.

[0013] In some embodiments, the surface of the sphere is fluorescent orange, and a plurality of light-emitting strips are distributed downward from the poles of the hemisphere on the surface of the sphere. Any one of the plurality of light-emitting strips extends from the pole position of the upper hemisphere to the position of the connection between the upper hemisphere and the lower hemisphere, or from the pole position of the lower hemisphere to the position of the connection between the lower hemisphere and the upper hemisphere.

[0014] In some embodiments, any one of the light-emitting strips is fixed to the sphere by waterproof glue.

[0015] In some embodiments, the power supply module, the positioning module, the power supply voltage transformation and regulation module, the alarm sound control module, and the LED lamp flashing module are connected by high-efficiency low-resistance wires.

[0016] Correspondingly, the present application also provides a hydrological test buoy system.

[0017] It includes a user terminal, a data query and maintenance platform, and a hydrological test buoy. The hydrological test buoy is provided with an LED lamp bead, a sound generator, and a mobile communication module. The user terminal is used to receive an alarm signal sent by the sound generator.

[0018] The data query and maintenance platform receives the measurement data of the hydrological test buoy in real time. The measurement data at least includes the real-time motion state of the hydrological test buoy, the current water flow velocity, and the moving trajectory of the historical hydrological test buoy.

[0019] The data query and maintenance platform sends a control instruction to the hydrological test buoy based on the measurement data to at least control the flashing frequency of the LED lamp bead, the decibel level of the sound generator, and the network switching of the mobile communication module.

[0020] In some embodiments, it further includes:

[0021] Power supply module: used to provide power;

[0022] Positioning module: The positioning module is used to locate the position of the hydrological test buoy and transmit the position signal of the hydrological test buoy to the data query and maintenance platform.

[0023] Alarm sound control module: the alarm sound control module is a sounder. When the sounder is paired with the user end through the Bluetooth module, the sounder transmits its alarm signal to the user end;

[0024] LED flash module: used to control the flash frequency and brightness of LED lamp beads.

[0025] In some embodiments, the mobile communication module is used to switch the signal band frequency according to the signal strength at the scene;

[0026] Power supply voltage transformation and stabilization module: used to ensure the stable operation of the power supply module, positioning module, alarm sound control module and LED light flashing module.

[0027] In some embodiments, the data query and maintenance platform aggregates the measurement data according to the received measurement data, and transmits the aggregated measurement data to the user terminal in the form of a data list and a vector map. Beneficial Effects

[0028] 1. The center of gravity of the sphere is in the middle. When the sphere drifts in the water, it will not be affected by the complex external environment due to the low center of gravity and stop moving forward. It is convenient for the sphere to pass through obstacles or slow-flowing river sections, and can be freely lodged in any posture. The sphere has strong passability and is less affected by the complex external environment. The sphere is made of high-strength material with strong anti-collision ability. It has strong adaptability to mountain torrents in northern mountainous areas, is easy to operate and suitable for large-scale use;

[0029] 2. During the day, the sphere is recognized by the human eye through the visual contrast created by fluorescent orange and fluorescent green, making it easy to track and be discovered. At night, the high-brightness LED under the fluorescent green cover begins to flash, and the light is transmitted through the fluorescent green cover to achieve the function of supplementary light and easy to be discovered;

[0030] 3. The hydrological test buoy system provided in this application can display the real-time movement status, current flow rate, historical movement trajectory, etc. of the buoy, and can accurately measure various data. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A schematic diagram of the structure of a hydrological test buoy provided in an embodiment of the present application;

[0033] Figure 2The left view, front view, and top view of a hydrological measurement buoy provided by an embodiment of the present application;

[0034] Figure 3 is the filling surface diagram of a hydrological measurement buoy provided by an embodiment of the present application;

[0035] Figure 4 is the structural schematic diagram of a hydrological measurement buoy system provided by an embodiment of the present application.

[0036] Explanation of reference numerals:

[0037] 1. Sphere, 3. Upper hemisphere, 4. Lower hemisphere, 5. Light-emitting band. Detailed implementation manners

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the present invention in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the drawings' structures is only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. It should be noted here that the description of these embodiment manners is used to help understand the present invention, but does not constitute a limitation to the present invention.

[0039] It should be understood that although terms such as first and second may be used herein to describe various units, these units should not be limited by these terms. These terms are only used to distinguish one unit from another. For example, the first unit may be called the second unit, and similarly, the second unit may be called the first unit, without departing from the scope of the exemplary embodiments of the present invention.

[0040] It should be understood that for the term "and / or" that may appear in this article, it is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, B exists alone, and A and B exist simultaneously; for the term " / and" that may appear in this article, it is a description of another association object relationship, indicating that two relationships may exist. For example, A / and B may represent: A exists alone, and A and B exist alone; in addition, for the character " / " that may appear in this article, generally, the front and rear associated objects represent an "or" relationship. Embodiment

[0041] As Figure 1Schematic structural diagram of a hydrological measurement buoy proposed by an embodiment of the present invention, including a sphere 1. The sphere includes an upper hemisphere 3 and a lower hemisphere 4 that are movably connected. A plurality of grooves are formed on the surface of the sphere 1. A light-emitting strip 5 and an LED lamp bead are fixed at each groove. The LED lamp bead is located below the light-emitting strip 5. The sphere 1 is made of insulating and lightweight material. A measurement buoy control unit is fixedly installed at the middle position of the sphere 1. The control unit includes a power supply module, a positioning module, a power supply voltage transformation and regulation module, an alarm sound control module, an LED lamp flashing module, and a mobile communication module. The sphere 1 of this product uses a spherical shell made of high-strength PVC material (this material is easy to process and form according to requirements, has strong plasticity, is lightweight, can float above the water surface, and has high material strength and is not easily deformed by external forces, which can well protect the normal operation of internal components). The sphere 1 is divided into two symmetrical upper and lower hemispheres, namely the upper hemisphere 3 and the lower hemisphere 4. The upper hemisphere 3 and the lower hemisphere 4 are connected by screw threads or snap connections at their ends, and a waterproof rubber strip is fixed at the connection. The surface of the sphere 1 is fluorescent orange. A plurality of light-emitting strips are distributed downward from the pole of the hemisphere on the surface of the sphere 1. Any one of the plurality of light-emitting strips 5 extends from the pole position of the upper hemisphere 3 to the connection position of the upper hemisphere 3 and the lower hemisphere 4, or extends from the pole position of the lower hemisphere (4) to the connection position of the lower hemisphere 4 and the upper hemisphere 3. In this way, a relatively large number of fluorescent green light-emitting strips are distributed around the sphere 1, which better improves the recognizability of the sphere 1. Fluorescent orange and fluorescent green can be well distinguished from the colors of various substances in nature, and the light contrast is relatively large.

[0042] A measurement buoy control unit is fixedly installed at the middle position of the sphere 1. A plurality of first holes are formed at the middle position of the upper hemisphere 3, and each first hole fixes a module in the measurement buoy control unit. A plurality of second holes are formed at the middle position of the lower hemisphere 4, and each second hole fixes a module in the measurement buoy control unit, so that the center of gravity of the sphere 1 coincides with the center of gravity of the measurement buoy control unit. In an embodiment of the present application, 3 first holes are formed at the middle position of the upper hemisphere 3, and each first hole fixes a module in the measurement buoy control unit. 3 second holes are formed at the middle position of the lower hemisphere 4, and each second hole fixes a module in the measurement buoy control unit.

[0043] The power module, positioning module, power transformer and voltage stabilizer module, alarm sound control module, LED light flashing module and mobile communication module are connected by high-efficiency and low-resistance wires. The center of gravity of the sphere 1 is centered (since the masses and shapes of the modules are different, in order to reasonably fix the modules inside the sphere 1, half holes are opened in each of the two hemispheres to facilitate the installation of the test buoy control unit in the middle of the sphere 1. In this way, the weight of the test buoy control unit is concentrated in the middle of the lower sphere 1, which is convenient for the center of gravity of the sphere 1 to coincide with the overall center of gravity of the modules. No matter how the sphere 1 flips and rolls or what posture it appears in, the overall center of gravity of the sphere 1 is centered. In this way, when the sphere 1 drifts in water, it will not be stopped by the complex external environment due to the low center of gravity, which is convenient for the sphere 1 to pass through obstacles or sections with slow water flow, etc.). It can fall down in any posture at will, and has strong spherical passability and little influence from the complex external environment. The material is of high strength, with strong anti-collision ability and strong adaptability to mountain torrents in northern mountainous areas. It adopts a multi-module design inside, and modules can be added at any time according to needs in the later stage, with strong product adaptability and expandability. Each module is customized and molded on polyethylene foam according to its volume and shape, and each module is firmly fixed for easy access and storage.

[0044] The hydrological test buoy of the present application has a spherical shell made of PVC material, and the inside of the sphere 1 is filled with polyethylene foam material (which can be, but is not limited to, polyethylene foam material, and can be some new lightweight and insulating materials. Holes can be dug in the material according to the shape and size of the module to facilitate the better embedding of the module into the hole and perfect fitting and wrapping), achieving lightweight, having a certain buffering ability, ensuring the stability of the equipment and eliminating vibration, and ensuring the stable transmission of information and current between the equipment.

[0045] Correspondingly, the present application provides a hydrological test buoy system, including a user terminal, a data query and maintenance platform, and a hydrological test buoy. The hydrological test buoy is provided with LED lamp beads, a sound generator and a mobile communication module, and the user terminal is used to receive the alarm signal sent by the sound generator.

[0046] The data query and maintenance platform receives the measurement data of the hydrological test buoy in real time. The measurement data at least includes the real-time motion state of the hydrological test buoy, the current water flow velocity, and the moving trajectory of the historical hydrological test buoy.

[0047] The data query and maintenance platform sends control instructions to the hydrological test buoy based on the measurement data to at least control the flashing frequency of the LED lamp beads, the decibel level of the sound generator, and the network switching of the mobile communication module.

[0048] Specifically, the data query and maintenance platform provided by the present application aggregates various measurement data and working condition information of the hydrological survey buoy, and receives the measurement data of the hydrological survey buoy in real time. The measurement data at least includes the real-time motion state of the hydrological survey buoy, the current water flow velocity, and the moving trajectory of the historical hydrological survey buoy. Based on the measurement data, a control instruction is sent to the hydrological survey buoy to at least control the flashing frequency of the LED lamp beads, the decibel level of the sound generator, and the network switching of the mobile communication module.

[0049] The hydrological survey buoy system further includes

[0050] Power supply module: used to provide power;

[0051] Positioning module: The positioning module is used to locate the position of the hydrological survey buoy and transmit the position signal of the hydrological survey buoy to the data query and maintenance platform;

[0052] Alarm sound control module: The alarm sound control module is a sound generator. When the generator is paired with the user terminal through the Bluetooth module, the generator transmits its alarm signal to the user terminal.

[0053] LED lamp flashing module: used to control the flashing frequency and brightness of the LED lamp beads;

[0054] Mobile communication module: used to switch the signal band frequency according to the signal strength situation on site;

[0055] Power supply voltage transformation and stabilization module: used to ensure the stable operation of the power supply module, positioning module, alarm sound control module, and LED lamp flashing module.

[0056] Specifically, the power supply module: is responsible for providing power support for other modules and adapting to the different voltage requirements of different devices. An 18650 ternary lithium battery pack is adopted. This battery is different from other chemical batteries. The reaction during the charge and discharge process is reversible, that is, lithium ions can move back and forth between the positive and negative electrodes, and there will be no irreversible chemical reaction. It has free charge and discharge, a long service life, a small volume, a long standby time, and is less affected by harsh environments such as external temperature, which matches the usage scenario of the sphere 1.

[0057] Positioning module: The module is built with a satellite positioning receiving device. This module can be positioned through GPS, GLONASS, Beidou, communication base stations, and WiFi, etc. Moreover, the module can freely switch between various positioning methods and cross-check each other to ensure the timeliness and accuracy of device positioning. The positioning module can interact with multiple satellites for geographical information data to determine its own position. By using the satellite propagation time signal, calculating the signal transmission time based on the signal emission time and local time, and then combining the speed of light to obtain the distance from the satellite to the device, functions such as water flow velocity monitoring and water flow historical trajectory storage can be realized.

[0058] Power transformation and voltage regulation module: By supplying power to functional modules, it can achieve stable and continuous voltage output, ensuring the stable operation of each module. It can also dynamically monitor the working conditions of each module and dynamically adjust the voltage to meet the most timely power requirements of each module, guaranteeing the working state of electrical equipment and extending the service life of the equipment.

[0059] Alarm sound control module: It integrates a high-decibel and low-power sound generator inside, with the sound reaching above 90 decibels. The module also has a built-in Bluetooth device. When the generator is "paired" with the Bluetooth module on the mobile phone, automatic search and interconnection can be achieved between the two. That is, in an open environment, when the distance between the module and the mobile phone is within 50 meters, the two can be automatically interconnected. The generator will emit short sounds to achieve the function of searching and positioning. When the Bluetooth device detects that the distance between the two continues to approach, the generator will emit higher-decibel and more rapid sounds to indicate that the two are getting closer to each other, thus achieving the purpose of retrieval and reuse. But when the distance between the two is less than 2 meters, the module emits the last sound and stops the alarm. However, when the distance between the two expands again, the alarm mechanism is activated again to repeat the above process. This module improves the probability of retrieving the equipment in complex terrains where the vision is blocked.

[0060] LED flashing module: The LED flashing module can be set according to different scenarios, through forms such as remote control or on-site parameter adjustment, to meet the light flashing frequency and light flashing brightness of LED lamp beads in different scenarios, thereby achieving the purpose of tracking and retrieval. The LED flashing module can flash at different frequencies according to the water flow speed (the monitoring function of the positioning module) to remind the monitoring personnel of the water surface flow velocity. Moreover, the flashing is helpful for visual tracking in the dark or in low-light conditions, including onshore monitoring personnel, drones used for basin survey, and video surveillance visualization equipment deployed along the way, which is an effective supplement to the positioning function. For low-light and night measurement scenarios, the LED flashing module provides signal instructions to high-brightness LEDs, and the LED lamp beads achieve regular stroboscopic flashing to provide line-of-sight tracking within the visual range at the initial stage of buoy placement, position verification and supplementation for the next buoy placement, the retrieval success rate during subsequent searches, and the ease of discovery for cooperation with drones or warning cameras along the way.

[0061] Mobile communication module: This module is responsible for receiving and transmitting various rainfall and water regime information as well as working condition information, conveying working instructions to each module and modifying relevant parameters, and constantly maintaining communication with the mobile base station for auxiliary positioning. It can be compatible with signal band frequencies such as 2G, 3G, 4G (which can be extended to 5G), achieving full compatibility with the signals of the three major mainstream communication operators, China Unicom, China Mobile, and China Telecom. It has strong adaptability to mountainous areas, remote areas, and field environments with weak signals, can perform full-frequency and full-band signal search, has the ability to preferentially select and actively switch according to signal strength, short delay, fast switching speed, and high equipment online guarantee rate.

[0062] Data query and maintenance platform: This platform realizes the aggregation of various measurement data and working condition information of the buoy ball, and can be presented to users in the form of data lists and vector maps to display the real-time movement state, current flow rate, historical movement trajectory, etc. of the buoy ball. The various information received by the platform through the background database is presented to the operators in an intuitive form, making up for the monitoring blind area after the buoy is out of sight. It can transmit various information back in a timely manner through the mobile network, update the display in real time, and keep the information interconnected. In addition, the platform can issue control instructions to the buoy ball to meet the personalized and multi-scenario needs of users, such as controlling the flashing frequency, sound decibel level, which network the mobile communication module connects to, which satellite positioning system the positioning module selects, or freely switching, etc. Embodiment

[0063] This hydrological test buoy adopts a high-strength PVC spherical shell, which is divided into two symmetrical upper and lower hemispheres that can be rotated and locked or disassembled through screws, and there are waterproof adhesive strips at the connection. The surface of the sphere 1 uses fluorescent orange to achieve the purpose of being eye-catching and easy to search and track within the line of sight. The surface of the sphere 1 is distributed with 4 fluorescent green light belts 5 starting from the pole of the hemisphere downward. The light belt 5 can be extended to the position close to the connection of the hemisphere. The connection line of the two light belts 5 on the opposite side is perpendicular to each other. High-brightness strobe LED lamp beads are arranged under the light belt 5. The light belt 5 is made by opening a hole on the PVC sphere 1 according to the symmetry requirements and installing a fluorescent green cover plate at the original hole position. High-brightness LED lamp beads are installed under the cover plate. The cover plate and the sphere 1 are fixed by waterproof glue to ensure that the internal original components and LED lamp beads will not be soaked in water and fail or be damaged. The color of the cover plate is a contrasting color with the color of the PVC sphere 1, which increases the recognizability of the sphere 1. During the day, the sphere 1 is recognized by the human eye through the visual contrast produced by fluorescent orange and fluorescent green, which is easy to track and be found. At night, the high-brightness LED under the fluorescent green cover begins to flash, and the light is transmitted through the fluorescent green cover to achieve the function of supplementary light and easy to be found). The inside of the sphere 1 is filled with polyethylene foam material to achieve lightweight and have a certain buffering capacity to ensure the stability of the equipment and eliminate vibration, and to ensure the stability of information and current transmission between devices. The center of gravity of the sphere 1 is centered, and it can be freely lodged in any posture. The spherical shape has strong permeability and is less affected by complex external environments. The material is high-strength material with strong anti-collision ability and strong adaptability to mountain torrents in northern mountainous areas. The interior adopts a multi-modular design, and modules can be added at any time according to needs in the later stage. The product has strong adaptability and scalability. Each module is tailor-made on the polyethylene foam according to the volume and shape. Each module is firmly fixed for easy access, and each module is connected by an efficient and low-resistance wire circuit. LED flash module: For insufficient and night test scenarios, the flash module provides signal instructions to the high-brightness LED, and the LED lamp beads achieve regular flashing, which has provided visual tracking within the initial field of view of the buoy release, the position verification and supplement of the next buoy release, the success rate of retrieval during subsequent searches, and the ease of tracking and discovery with drones or early warning cameras along the way. Alarm sound control module: Through high-frequency vibration sound waves with frequency, the attention of visual perception outside, the success probability is provided in the tracking and retrieval links, and the Bluetooth "pairing" interconnection between the mobile phone and the module strengthens the positioning and close-range search to indicate the direction. When the mobile phone and the device are in the effective range, the Bluetooth is automatically "paired", and the mobile phone and the module both emit a higher frequency alarm prompt sound. As the distance gets closer, the intensity and frequency of the alarm sound are further increased, providing search personnel with higher confidence and improving the timeliness and success rate of retrieval.

[0064] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A hydrological measurement buoy, characterized in that, Comprising: A sphere (1), which floats above the water surface. The sphere (1) includes an upper hemisphere (3) and a lower hemisphere (4) that are movably connected. The center of gravity of the sphere (1) is centered. A hydrological measurement buoy control unit is fixedly installed at the middle position of the sphere (1). The hydrological measurement buoy control unit includes a mobile communication module. A plurality of first holes are opened at the middle position of the upper hemisphere (3), and each first hole fixes a module in the hydrological measurement buoy control unit. A plurality of second holes are opened at the middle position of the lower hemisphere (4), and each second hole fixes a module in the hydrological measurement buoy control unit, so that the center of gravity of the sphere (1) coincides with the center of gravity of the hydrological measurement buoy control unit, and the weight of the hydrological measurement buoy control unit is concentrated in the middle of the sphere (1). A plurality of grooves are opened on the surface of the sphere (1), and a light-emitting strip (5) and an LED lamp bead are fixed at each groove. The LED lamp bead is located below the light-emitting strip (5). The hydrological measurement buoy control unit includes a power supply module, a positioning module, a power supply voltage transformation and stabilization module, an alarm sound control module, and an LED lamp flashing module. The surface of the sphere (1) is fluorescent orange, and a plurality of light-emitting strips are distributed downward from the poles of the hemisphere on the surface of the sphere (1).

2. The hydrological measurement buoy according to claim 1, characterized in that, The sphere (1) is made of an insulating and lightweight material.

3. The hydrological measurement buoy according to claim 1, characterized in that, The ends of the upper hemisphere (3) and the lower hemisphere (4) are connected by threads or snap-fits, and a waterproof rubber strip is fixed at the connection.

4. The hydrological measurement buoy according to claim 1, characterized in that, Any one of the plurality of light-emitting strips extends from the pole position of the upper hemisphere (3) to the connection position between the upper hemisphere (3) and the lower hemisphere (4), or extends from the pole position of the lower hemisphere (4) to the connection position between the lower hemisphere (4) and the upper hemisphere (3).

5. The hydrological measurement buoy according to claim 4, characterized in that, Any one of the light-emitting strips (5) is fixed to the sphere (1) by waterproof glue.

6. The hydrological measurement buoy according to claim 2, characterized in that, The power supply module, the positioning module, the power supply voltage transformation and stabilization module, the alarm sound control module, and the LED lamp flashing module are connected by power lines.

7. A hydrological measurement buoy system, characterized in that, Including a user terminal, data query, a power supply module, a positioning module, an alarm sound control module, an LED lamp flashing module, a mobile communication module, a power supply voltage transformation and stabilization module, and a maintenance platform, and the hydrological measurement buoy according to any one of claims 1-6. An LED lamp bead, a sound generator, and a mobile communication module are provided on the hydrological measurement buoy. The user terminal is used to receive the alarm signal sent by the sound generator; Power supply module: for providing power; Positioning module: The positioning module is used to locate the position of the hydrological measurement buoy and transmit the position signal of the hydrological measurement buoy to the data query and maintenance platform; Alarm sound control module: After the sound generator is paired with the user terminal through the Bluetooth module, the sound generator transmits its alarm signal to the user terminal; LED lamp flashing module: for controlling the flashing frequency and flashing brightness of the LED lamp bead; Mobile communication module: for switching the signal band frequency according to the signal strength situation on site; Power supply voltage transformation and stabilization module: for ensuring the stable operation of the power supply module, the positioning module, the alarm sound control module, and the LED lamp flashing module; The data query and maintenance platform receives in real time the measurement data of the hydrological survey buoy, and the measurement data at least includes the real-time motion state of the hydrological survey buoy, the current water flow velocity, and the moving trajectory of the historical hydrological survey buoy; Based on the measurement data, the data query and maintenance platform sends control instructions to the hydrological survey buoy to at least control the flashing frequency of the LED lamp beads, the decibel level of the sound generator, and the network switching of the mobile communication module on the hydrological survey buoy.

8. The hydrological measurement buoy system according to claim 7, characterized in that, The data query and maintenance platform summarizes the measurement data received, and transmits it to the user terminal in the form of a data list and a vector map.

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