Water quality monitoring system

Abstract

The application discloses a water quality detection system based on Internet of Things, which comprises a plurality of floating water quality monitoring devices used for floating in water bodies to detect water quality parameters or / and flow velocity parameters; and a server used for receiving at least the water quality parameters or / and the flow velocity parameters detected by the floating water quality monitoring devices; wherein the floating water quality monitoring device at least comprises a Beidou positioning module. The application has the advantages that a water quality monitoring system based on Internet of Things which can automatically collect water quality parameters is provided.

Description

Technical Field

[0001] This application relates to the field of water quality monitoring technology, and more specifically, to a water quality monitoring system. Background Technology

[0002] Water quality monitoring is the process of monitoring and measuring the types, concentrations, and trends of pollutants in water bodies to objectively evaluate water quality. The scope of water quality monitoring is very broad, including unpolluted and polluted natural water (rivers, lakes, seas, and groundwater) as well as various types of industrial wastewater. The main monitoring items can be divided into two categories: one is comprehensive indicators reflecting water quality, such as temperature, color, turbidity, pH, conductivity, suspended solids, dissolved oxygen, chemical oxygen demand (COD), and biochemical oxygen demand (BOD); the other is the concentration of toxic substances such as phenols, lead, chromium, cadmium, and mercury. In addition to the above monitoring items, flow velocity and flow rate measurements are sometimes required.

[0003] Currently, water quality monitoring of inland rivers and lakes in my country is mainly conducted manually, with water sample collection relying primarily on fixed hydrological stations. The data collection cycle is relatively long, usually on a monthly basis.

[0004] There are two types of products related to this technology. One type is the buoy-type hydrological monitoring station. This type of station typically consists of two layers: the upper layer houses solar panels, data acquisition equipment, and transmission equipment; the lower layer is the sensor compartment, where different water quality sensors can be placed according to user needs. This type of equipment can achieve automated, real-time detection and data uploading, but it needs to be fixedly deployed on the shore or underwater, thus preventing large-scale monitoring. The second type is the intelligent flow measurement system developed by Haiying Marine Electronics. This device adopts a closed, spherical design, floats on the water surface, and uses GPS for positioning and velocity measurement to provide an approximate estimate of the water flow velocity.

[0005] The problem with buoy-type hydrological monitoring stations is that they can only be fixed in place and cannot float with the flow of river or lake water. Therefore, they can only monitor water quality at specific locations and cannot measure water volume. In addition, these monitoring stations are very expensive and difficult to deploy on a large scale.

[0006] Other forms of water quality monitoring platforms include unmanned surface vessels, drones, and underwater vehicles. These platforms are all mobile and generally equipped with GPS and BeiDou positioning terminals, enabling them to determine their location in real time. However, these platforms still require manual operation. In other words, they are mainly used for fixed-point monitoring and cannot yet achieve long-term unattended, full-basin automated monitoring. Summary of the Invention

[0007] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0008] Some embodiments of this application propose a water quality monitoring system to address the technical problems mentioned in the background section above.

[0009] As a first aspect of this application, some embodiments of this application provide a water quality detection system, including: a plurality of floating water quality monitoring devices for drifting in a water body to detect water quality parameters and / or flow velocity parameters; a server for receiving at least the water quality parameters and / or flow velocity parameters detected by the floating water quality monitoring devices; wherein the floating water quality monitoring devices include at least a Beidou positioning module.

[0010] Furthermore, the floating water quality monitoring device includes a solar charging module.

[0011] Furthermore, the floating water quality monitoring device also includes a wireless communication module.

[0012] Furthermore, the floating water quality monitoring device also includes a wireless communication module.

[0013] Furthermore, the wireless communication module includes an NB-IoT unit.

[0014] Furthermore, the floating water quality monitoring device also includes a water quality detection module.

[0015] Furthermore, the floating water quality monitoring device includes a water storage tank; the floating water quality monitoring device also includes a pumping device for pumping liquid into the water storage tank.

[0016] Furthermore, the floating water quality monitoring device also includes a drainage device for discharging liquid into the water storage tank.

[0017] Furthermore, the sensing probe of the water quality detection module is installed in the water storage tank.

[0018] Furthermore, the floating water quality monitoring device also includes: a device shell, forming at least two separate equipment compartments, namely the water storage tank; wherein the water storage tank is provided with an inlet and an outlet.

[0019] As a second aspect of this application, some embodiments of this application provide a water quality testing device, including: a testing device for detecting water quality parameters; the water quality testing device further includes: a buoyancy shell having a central through hole and a buoyancy space surrounding the central through hole; an insert shell configured to have an shape that can be inserted into the central through hole and forming a device space; a sliding piston slidably connected to the insert shell to have at least a first position and a second position relative to the insert shell; a driving device for driving the sliding piston to move the sliding piston at least from the first position to the second position; an energy storage device for storing energy required by the driving device; a control device for at least controlling the driving device and for data interaction with the testing device; and a communication device for establishing a communication connection between the control device and an external environment; wherein the testing device, the driving device, the energy storage device, the control device, and the communication device are disposed in the device space of the insert shell; the insert shell is at least partially accommodated in the central through hole of the buoyancy shell to form a detachable movable connection with the buoyancy shell; the sliding piston is located inside the central through hole when in the first position and outside the central through hole when in the second position; and the driving device is disposed between the sliding piston and the control device.

[0020] Furthermore, the water quality testing device also includes: a transmission device for transmitting power between the drive device and the sliding piston; the transmission device is disposed between the drive device and the sliding piston.

[0021] Furthermore, the transmission device includes: a transmission screw, which can rotate about a central axis under the drive of the drive device; a transmission nut, which is fitted onto the transmission screw to move in a direction parallel to the central axis when the transmission screw rotates; and a transmission connecting rod, which is used to connect to the sliding piston and the transmission nut respectively so that the transmission nut can drive the sliding piston to move; wherein, the transmission connecting rod is disposed between the transmission nut and the sliding piston.

[0022] Furthermore, the transmission link and the insert housing form a sliding connection in a direction parallel to the central axis.

[0023] Furthermore, the insert housing is provided with several connecting rod through holes, through which the transmission connecting rod passes.

[0024] Furthermore, the detection device includes at least one water quality sensor probe; the insert housing is provided with at least one probe through hole, and the water quality sensor probe passes through the insert housing at least partially through the probe through hole and is disposed in the central through hole.

[0025] Furthermore, the buoyancy shell is at least partially constructed as a spherical structure.

[0026] Furthermore, the buoyancy space is constructed as a sandwich space surrounding the central through-hole.

[0027] Furthermore, the insert housing includes: an insert body for forming a device space; and an insert end cap for removably engaging with the insert body to enclose the device space.

[0028] Furthermore, the insert body includes: a first receiving portion for forming part of the equipment space to accommodate a control device and a communication device; and a second receiving portion for forming another part of the equipment space to accommodate a drive device, an energy storage device, and a detection device; wherein the second receiving portion is disposed between the first receiving portion and the sliding piston.

[0029] As a third aspect of this application, some embodiments of this application provide a floating water quality monitoring device, including: a floating shell forming a shell space; a water quality sensor for detecting water quality parameters; a wireless communicator for wireless communication; and a Beidou locator for Beidou positioning. The floating water quality monitoring device further includes: a battery, a circuit board, a water pump, an inlet pipe, a connecting pipe, an outlet pipe, and an inner box. The floating shell includes: a spherical shell and a top cover; a first side of the spherical shell is constructed to have at least a partially spherical outer surface; the spherical shell has a shell opening on a second side opposite to the first side to expose the shell space on the second side of the spherical shell; the top cover is fixedly connected to the spherical shell and is disposed at the shell opening of the spherical shell to seal it. A closed housing space; a wireless communicator, a Beidou locator, a battery, and a circuit board are fixedly installed inside the top cover so that they are housed within the housing space; a water quality sensor, a wireless communicator, a Beidou locator, and a battery are electrically connected at least through the circuit board; an inner box forms a liquid storage space and is fixedly installed in the housing space near the first side; a water quality sensor is fixedly installed to the inner box by passing through the inner box wall, with one part of the water quality sensor located in the liquid storage space and the other part located in the housing space; an inlet pipe passes through the spherical shell and connects to the pump inlet of the water pump; a connecting pipe passes through the inner box wall and connects to the water pump outlet; an outlet pipe passes through the walls of the housing and the inner box respectively to connect the liquid storage space with the outside of the floating shell.

[0030] Furthermore, the floating water quality monitoring device also includes: an indicator light for generating light signals; the indicator light is fixedly installed to the top cover and is at least electrically connected to the circuit board.

[0031] Furthermore, the floating water quality monitoring device also includes: a solar photovoltaic panel for converting light energy into electrical energy; the solar photovoltaic panel is fixed to the top cover and is at least electrically connected to the battery.

[0032] Furthermore, the top cover is made of transparent material, and the solar photovoltaic panels are fixedly installed on the inside of the top cover.

[0033] Furthermore, the floating water quality monitoring device also includes: an antenna for transmitting wireless signals; the antenna is fixed to the inside of the top cover and is at least electrically connected to the wireless communicator.

[0034] Furthermore, the floating water quality monitoring device also includes: a processor for processing data and outputting corresponding electrical signals; the processor is mounted on a circuit board and is electrically connected to the water quality sensor, wireless communication device, Beidou locator, and battery through the circuit board.

[0035] Furthermore, the number of water quality sensors is greater than one, with multiple water quality sensors set up in parallel.

[0036] Furthermore, the water pump is located on one side of the inner box, and the liquid outlet pipe is located on the other side of the inner box.

[0037] Furthermore, the end of the outlet pipe located within the liquid storage space is higher than the end of the connecting pipe located within the liquid storage space.

[0038] Furthermore, the floating hull is constructed to have a hemispherical outer surface.

[0039] The beneficial effect of this application is that it provides a water quality monitoring system that can automatically collect water quality parameters.

[0040] More specifically, some embodiments of this application may produce the following specific beneficial effects:

[0041] A water quality testing device is provided that uses a sliding piston and a buoyancy shell to collect water for re-testing to ensure the accuracy of the test results.

[0042] A floating water quality monitoring device with a reasonable structure to prevent tipping and effective water quality monitoring is provided. Attached Figure Description

[0043] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0044] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0045] In the attached diagram:

[0046] Figure 1 This is a schematic diagram of the structure of a floating water quality monitoring device in an IoT-based water quality monitoring system according to an embodiment of this application;

[0047] Figure 2 This is a schematic diagram of the top structure of a floating water quality monitoring device according to an embodiment of this application;

[0048] Figure 3This is a schematic diagram of a floating water quality monitoring device according to an embodiment of this application;

[0049] Figure 4 This is a schematic diagram of the flow velocity principle of a floating water quality monitoring device according to an embodiment of this application;

[0050] Figure 5 This is a schematic diagram of the system architecture of an Internet of Things-based water quality monitoring system according to an embodiment of this application;

[0051] Figure 6 This is a schematic diagram of the data interface of an IoT-based water quality monitoring system according to an embodiment of this application;

[0052] Figure 7 This is a schematic diagram of the user interface of an IoT-based water quality monitoring system according to an embodiment of this application;

[0053] Figure 8 A schematic diagram of an overall water quality testing device according to an embodiment of this application;

[0054] Figure 9 yes Figure 8 The diagram shows the internal structure of the buoyancy shell in the water quality testing device.

[0055] Figure 10 yes Figure 8 A three-dimensional structural diagram of a portion of the water quality testing device shown;

[0056] Figure 11 yes Figure 8 The diagram shows the internal structure of the insert housing in the water quality testing device.

[0057] Figure 12 yes Figure 8 A schematic diagram of the internal structure of the water quality testing device shown.

[0058] Figure 13 This is an overall schematic diagram of a water quality testing device according to another embodiment of this application;

[0059] Figure 14 yes Figure 13 The diagram shows the internal structure of the buoyancy shell in the water quality testing device.

[0060] Figure 15 yes Figure 13 The diagram shows the internal structure of the insert housing in the water quality testing device.

[0061] Figure 16 This is a schematic diagram of the external structure of a floating water quality monitoring device according to another embodiment of this application;

[0062] Figure 17yes Figure 16 A schematic diagram of the overall cross-section of the embodiment shown;

[0063] Figure 18 yes Figure 16 An overall exploded view of the embodiment shown;

[0064] Figure 19 yes Figure 16 A schematic diagram of the components installed at the top cover in the illustrated embodiment;

[0065] Figure 20 yes Figure 16 A schematic diagram of the component installed at the spherical shell in the embodiment shown;

[0066] Figure 21 yes Figure 20 A schematic diagram of the structure after it has been cut open;

[0067] Figure 22 yes Figure 16 A cross-sectional view of the inner box in the illustrated embodiment. Implementation

[0068] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0069] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0070] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0071] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0072] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0073] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0074] Reference Figures 1 to 5 As shown, the IoT-based water quality monitoring system of this application includes: a plurality of floating water quality monitoring devices for drifting in the water body to detect water quality parameters and / or flow velocity parameters; a server for receiving at least the water quality parameters and / or flow velocity parameters detected by the floating water quality monitoring devices; wherein, the floating water quality monitoring devices include at least a Beidou positioning module.

[0075] Specifically, the floating water quality monitoring device includes a solar charging module.

[0076] Specifically, the floating water quality monitoring device also includes a wireless communication module.

[0077] Specifically, the floating water quality monitoring device also includes a wireless communication module.

[0078] Specifically, the wireless communication module includes an NB-IoT unit.

[0079] Specifically, the floating water quality monitoring device also includes a water quality detection module.

[0080] Specifically, the floating water quality monitoring device has a water storage tank; the floating water quality monitoring device also includes a pumping device for pumping liquid into the water storage tank.

[0081] Specifically, the floating water quality monitoring device also includes a drainage device for discharging liquid into the water storage tank.

[0082] Specifically, the sensing probe of the water quality detection module is installed in the water storage tank.

[0083] Specifically, the floating water quality monitoring device further includes: a device shell, forming at least two separate equipment compartments, namely a water storage tank; wherein the water storage tank is provided with an inlet and an outlet.

[0084] As a more specific solution: such as Figure 1 and Figure 2 As shown, the entire monitoring device adopts a spherical float structure, such as... Figure 1 As shown, it can float autonomously with the water flow, enabling dynamic monitoring of the entire watershed. Its spherical structure makes it less prone to entanglement and obstruction by aquatic plants and other objects, and it has minimal impact on navigation safety. An internal water storage device and a matching miniature pump ensure that the water being tested remains stable during each sampling, improving detection accuracy.

[0085] Making full use of BeiDou positioning data is not only crucial for determining the location of monitoring points during sampling, but also for estimating water flow velocity. If the device is obstructed or entangled, its trajectory can be used to determine this (if its position remains unchanged for a period of time), thus notifying personnel for manual retrieval.

[0086] Figure 1 The structure of the upper and middle top cover is as follows Figure 2 As shown, solar panels are installed in the square-hole area to charge the battery module. The GPS and BeiDou antennas are placed in the central gap of the square-hole area to avoid obstruction. Figure 3 As shown, the overall structure of the measuring device is as follows: Figure 3 As shown. The control board, battery, and antenna are placed in the upper hemisphere, while the sensor is placed in the lower hemisphere, with an isolation plate in between. The diameter of the sphere is determined based on the dimensions of the circuit board and sensor. The water inlet / outlet devices require holes in the casing, and a counterweight is needed at the bottom of the lower hemisphere to prevent it from rolling. The processor (main control board) is a low-power main control board with BeiDou and wireless transmission modules, capable of real-time positioning and data transmission, and can also connect to an external water quality sensor via a serial interface. Positioning uses BeiDou and GPS dual-mode and has an antenna; communication uses NB-IoT, similar to mobile phone base station communication, and also has an antenna; the interface is a serial port with a 5V voltage output. The water quality sensor selects three parameters: pH, temperature, and dissolved oxygen, and the configuration can be flexibly changed according to application requirements. The sensor is fixed to the water storage device using a side-insertion method, such as... Figure 4 As shown, the water storage device has an inlet pipe and an outlet pipe connected to both sides.

[0087] Water speed monitoring: The speed of the float is calculated using the speed information output by the GPS / BeiDou module, and this is used as an approximate estimate of the water speed.

[0088] The architecture of the entire system is as follows Figure 5 As shown in the image, the water quality monitoring device transmits sensor data, location coordinates, and movement speed back to the server, allowing users to visually view the water quality and quantity monitoring results for the entire watershed on a map. The overall system software modules and the interfaces between them are shown below. Figure 6 As shown.

[0089] The user interface was developed using Baidu Maps' programming interface, and the effect is as follows. Figure 7 As shown, users can see real-time monitoring data and its corresponding location, as well as access historical data and plot the measurement trajectory curve. Clicking on the icon for each location displays the corresponding detection time, coordinates, and sensor data.

[0090] The above solutions can achieve the following: floating in the monitored rivers and lakes, automatically collecting water samples and testing water quality; having a positioning function, capable of transmitting the test results and its own location to a computer or server for display via wireless communication; having a speed measurement function, using the Beidou module to understand the device's movement speed, and thus estimating the water flow speed and flow rate; and having a solar charging function, enabling continuous operation for a long time.

[0091] Compared with existing water quality monitoring equipment and devices, this application also has the following beneficial effects:

[0092] It is easy to operate and requires no human intervention after deployment, enabling truly automated monitoring.

[0093] It can monitor both water quality and quantity simultaneously, helping professionals determine the distribution of pollutants when dealing with emergency pollution situations.

[0094] With its low power consumption and low cost, it can be deployed in large numbers in rivers and lakes in the future to achieve large-scale monitoring.

[0095] The basic scheme of this application has been introduced above. The specific scheme of the water quality monitoring device of this application is described below with reference to several embodiments.

[0096] Reference Figures 8 to 15 As shown, the water quality testing device 100 includes: a testing device 101, a buoyancy shell 102, an insert shell 103, a sliding piston 104, a driving device 105, an energy storage device 106, a control device 107, and a communication device 108, etc.

[0097] like Figure 12 As shown, specifically, the detection device 101 is used to detect water quality parameters, and it includes at least one water quality sensor probe 1011; the buoyancy shell 102 is at least partially constructed as a spherical structure, making it less likely to be entangled or blocked by aquatic plants or other objects, and having minimal impact on navigation safety; the buoyancy shell 102 is also constructed to have a central through hole 102a and a buoyancy space 102b; the central through hole 102a extends through the buoyancy shell 102 along a central axis, and the buoyancy space 102b is constructed as a sandwich space surrounding the central through hole 102a, and the shell space is set as a sealed space to ensure the buoyancy of the buoyancy shell 102, so that the entire water quality detection device 100 can float on the water surface. The buoyancy shell 102 also forms a mounting surface 1021 perpendicular to the central axis of the central through hole 102a.

[0098] The insert housing 103 is configured to have an insertable shape for insertion into the central through-hole 102a and to form a device space 103a; the insert housing 103 is at least partially accommodated in the central through-hole 102a of the buoyancy housing 102 to form a detachable movable connection with the buoyancy housing 102. The insert housing 103 is also provided with at least one probe through-hole 103b, through which the water quality sensor probe 1011 passes at least partially through the probe through-hole 103b and is disposed in the central through-hole 102a.

[0099] In the field of water quality testing, a common method is to directly insert the testing probe into the water. However, the testing of the probe takes a certain amount of time. Therefore, when applied to a flowing water environment, the testing is not a single testing point, which affects the accuracy of the water quality test results.

[0100] The sliding piston 104 is slidably connected to the insert housing 103 to have at least a first position and a second position relative to the insert housing 103; when the sliding piston 104 is in the first position, it is located inside the central through hole 102a, and when the sliding piston 104 is in the second position, it is located outside the central through hole 102a; the driving device 105 is disposed between the sliding piston 104 and the control device 107, and is used to drive the sliding piston 104 so that the sliding piston 104 can move at least from the first position to the second position; specifically, the driving device 105 includes at least a motor 1051 that indirectly drives the sliding piston 104 to move.

[0101] In this design, during water flow detection, the sliding piston 104 draws a portion of the water into the central through-hole 102a to restrict its flow as it moves from the second position to the first position. The water quality sensor probe 1011 then detects this portion of water, ensuring that the detection result corresponds to a single detection point, resulting in high accuracy. After each detection, the sliding piston 104 returns to the first position to discharge the water from the central through-hole 102a, and water is drawn again for detection after a period of time. Furthermore, the insert housing 103 and the buoyancy housing 102 are connected via an insert mechanism, facilitating repair and replacement in case of damage to the buoyancy housing 102 or other components, thus extending service life.

[0102] The energy storage device 106 stores at least the energy required by the drive device 105 and the water quality sensor probe 1011 to enable continuous operation. Specifically, the energy storage device 106 includes multiple battery cell groups 1061 arranged around the central axis of the device space 103a, and these battery cell groups 1061 are evenly spaced to maintain the stability of the water quality detection device 100 in the water to prevent it from capsizing. The control device 107 is used at least to control the drive device 105 and to interact with the detection device 101; the communication device 108 is used to establish a communication connection between the control device 107 and the outside. The detection device 101, drive device 105, energy storage device 106, control device 107, and communication device 108 are disposed in the device space 103a of the insert housing 103.

[0103] As a preferred embodiment, the water quality testing device 100 further includes a transmission device 109; the transmission device 109 is disposed between the drive device 105 and the sliding piston 104, and is used to realize transmission between the drive device 105 and the sliding piston 104.

[0104] As a specific embodiment, the transmission device 109 includes: a transmission screw 1091, a transmission nut 1092, and a transmission connecting rod 1093; the transmission screw 1091 can rotate around a central axis under the drive of the drive device 105; the transmission nut 1092 is fitted onto the transmission screw 1091 to move in a direction parallel to the central axis when the transmission screw 1091 rotates; the transmission connecting rod 1093 is disposed between the transmission nut 1092 and the sliding piston 104, with one end of the transmission connecting rod 1093 connected to the sliding piston 104 and the other end connected to the transmission nut 1092, thereby enabling the transmission nut 1092 to drive the sliding piston 104 to move. The transmission connecting rod 1093 and the insert housing 103 form a sliding connection in a direction parallel to the central axis; the insert housing 103 has multiple connecting rod through holes 103c, and the transmission connecting rod 1093 passes through the connecting rod through holes 103c of the insert housing 103.

[0105] As a preferred embodiment, the insert housing 103 is further provided with a support portion for fixing the motor 1051, and at least part of the support portion is sleeved on the transmission screw 1091. The transmission nut 1092 is anti-rotationally connected to the support portion to limit the rotational freedom of the transmission nut 1092.

[0106] As a specific embodiment, the insert housing 103 includes an insert body 1031 and an insert end cap 1032; the insert body 1031 is used to form a device space 103a, and the insert end cap 1032 is detachably coupled to the mounting surface 1021 to close the device space 103a; more specifically, the mounting surface 1021 is fixedly connected with a plurality of clips 110, which fix the insert end cap 1032 to the buoyancy housing 102, and the insert end cap 1032 is provided with a handle to facilitate lifting the insert end cap 1032 and the insert housing 103.

[0107] As a preferred embodiment, the insert body 1031 is further provided with a partition 1033, which divides the equipment space 103a into two chambers. The control device 107 and the communication device 108 are located in the chamber above the partition 1033, while the drive device 105, the energy storage device 106, and the transmission device 109 are located in the chamber below the partition 1033.

[0108] As a preferred embodiment, the length of the central through hole 102a is greater than the length of the insert body 1031, so that when the insert body 1031 is inserted into the central through hole 102a, a portion of the length of the central through hole 102a is used to accommodate the water being monitored.

[0109] In another embodiment of the water quality testing device, the insert body 203 includes: a first receiving portion 2031 and a second receiving portion 2032; the first receiving portion 2031 is used to form a part of the equipment space 203a to accommodate a control device and a communication device; the second receiving portion 2032 is used to form another part of the equipment space 203a to accommodate a drive device, an energy storage device and a detection device; specifically, the diameter of the first receiving portion 2031 is larger than the diameter of the second receiving portion 2032, and the second receiving portion 2032 is disposed between the first receiving portion 2031 and the sliding piston.

[0110] Accordingly, the buoyancy shell 202 includes a first insertion portion 2021 and a second insertion portion 2022; the first insertion portion 2021 is used to form a part of the central through hole 2022a to accommodate the first receiving portion 2031, and the second insertion portion 2022 is used to form another part of the central through hole 2022a to accommodate the second receiving portion 2032; specifically, the diameter of the first insertion portion 2021 is larger than the diameter of the second insertion portion 2022; when the insertion body 203 is inserted into the central through hole 2022a, the first receiving portion 2031 abuts against the first insertion portion to restrict the insertion body 203 from moving relative to the buoyancy shell 202 along the central axis of the central through hole 2022a, the insertion body 203 and the buoyancy shell 202 rely on their shape matching to quickly position the insertion body 203, and the connection structure between the insertion body 203 and the buoyancy shell 202 can be omitted.

[0111] Reference Figures 16 to 22 As shown, the floating water quality monitoring device 200, as an embodiment of this application, mainly includes: a floating shell 201, a water quality sensor 202, a wireless communicator 203, a Beidou locator 204, a storage battery 205, a circuit board 206, a water pump 207, an inlet pipe 208, a connecting pipe 209, an outlet pipe 210, an inner box 211, an indicator light 212, a solar photovoltaic panel 213, an antenna 214, and a processor 215.

[0112] The floating shell 201 forms a shell space. The floating shell 201 is mainly used to form a shell space to accommodate other components and devices, and at the same time, the cavity design of the shell space provides the buoyancy required for floating.

[0113] Specifically, the floating shell 201 includes a spherical shell 201a and a top cover 201b. The first side of the spherical shell 201a is constructed to have at least a partially spherical outer surface; the spherical shell 201a has a shell opening on a second side opposite to the first side, allowing the shell space to be exposed on the second side; the top cover 201b is fixedly connected to the spherical shell 201a and is disposed at the shell opening of the spherical shell 201a to close the shell space. That is, the outer surface of the bottom side of the spherical shell 201a is at least partially spherical when floating, and the top side of the spherical shell 201a has a shell opening to open the shell space inside the spherical shell 201a. The top cover 201b can be constructed as a disc-shaped structure to completely close the top of the spherical shell 201a, thus making the floating shell 201 relatively sealed overall, and also making the shell space an internal space that can be isolated from the outside, preventing uncontrolled water from entering the shell space. As a preferred option, the spherical shell 201a and / or the top cover 201b are made of a transparent material, such as transparent acrylic.

[0114] The floating hull 201 is designed in such a way that the floating water quality monitoring device 200 is less likely to capsize. As a further preferred embodiment, the floating hull 201 is constructed with a hemispherical outer surface, which makes the floating water quality monitoring device 200 more stable and ensures its attitude when floating.

[0115] The water quality sensor 202 is used to detect water quality parameters. Specifically, a water quality monitoring sensor is an instrument for detecting water quality parameters. It is generally used to detect turbidity, conductivity, temperature, oxygen content, ammonia nitrogen content, pH value, ORP value, etc. Multiple water quality sensors 202 can be set up to detect multiple parameters. The specific principle and structure of the water quality sensor 202 are well-known technical solutions to those skilled in the art and will not be elaborated here. Generally, the water quality sensor 202 is constructed in an approximately rod-like shape, with one end for contacting the water body to achieve detection, and the other end for connecting a cable to output an electrical signal. The corresponding processor 215 can obtain the data detected by the water quality sensor 202 based on the electrical signal, while the cable also provides the water quality sensor 202 with the electrical energy required for detection.

[0116] The wireless communicator 203 is used to achieve wireless communication. Specifically, the wireless communicator 203 can be composed of 2G to 5G mobile communicators or Internet of Things (IoT) communicators such as NB-IoT, or a combination thereof.

[0117] The Beidou Positioner 204 is used to achieve Beidou positioning. As an extension, a GPS positioner can also be used to achieve multiple positioning.

[0118] The wireless communicator 203 and the Beidou locator 204 are both technical solutions well known to the technical personnel, and will not be described in detail here.

[0119] The storage battery 205 is mainly used to provide power for the entire device. When the floating water quality monitoring device 200 conducts a monitoring activity along the water body, the storage battery 205 mainly provides the required power. Specifically, multiple 18650 lithium batteries can be used to form a group of storage batteries 205 to achieve energy storage. To improve the energy efficiency, multiple groups of storage batteries 205 can be set up.

[0120] In order to give the floating water quality monitoring device 200 a longer operating range, several solar photovoltaic panels 213 are also provided, which are used to convert light energy into electrical energy.

[0121] Circuit board 206 mainly provides the circuits required for electrical connections. Of course, for some devices that require cables, the other end of the cable can be electrically connected to the circuit on circuit board 206 by means of plug-in terminals or soldering to realize the overall circuit architecture of each device and component.

[0122] Indicator light 212 is used to generate light signals, specifically, to generate flashing or brightly colored light signals, thereby indicating the location of the floating water quality monitoring device 200 to the user when the device is being recovered.

[0123] Antenna 214 is used to transmit wireless signals. The purpose of setting antenna 214 is to enable the wireless communication module and Beidou positioner 204 to have better signal transmission and reception performance.

[0124] The processor 215 is used to process data and output corresponding electrical signals. The processor 215 mainly acts as the brain of the floating water quality monitoring device 200, which controls other devices and receives and processes the electrical signals uploaded by each device.

[0125] Specifically, such as Figure 2 and Figure 4 As shown, in order to install the above-mentioned devices and components, the wireless communicator 203, the Beidou locator 204, the battery 205 and the circuit board 206 are fixedly installed inside the top cover 201b so that they are housed inside the housing space; the water quality sensor 202, the wireless communicator, the Beidou locator 204 and the battery 205 are electrically connected at least through the circuit board 206.

[0126] More specifically, indicator light 212 is fixedly mounted to top cover 201b and is electrically connected to at least circuit board 206. Solar photovoltaic panel 213 is fixedly mounted to top cover 201b and is electrically connected to at least battery 205; to allow light to pass through top cover 201b and to protect solar photovoltaic panel 213, top cover 201b is made of transparent material, and solar photovoltaic panel 213 is fixedly mounted on the inside of top cover 201b. Antenna 214 is fixedly mounted on the inside of top cover 201b and is electrically connected to at least wireless communicator 203. Processor 215 is mounted to circuit board 206 and is electrically connected to water quality sensor 202, wireless communicator, Beidou locator 204, and battery 205 through circuit board 206.

[0127] As can be seen from the above scheme, in addition to multiple water quality sensors 202 and water pump 207, other components such as wireless communicator 203, Beidou locator 204, battery 205, circuit board 206, indicator light 212, solar photovoltaic panel 213, antenna 214, and processor 215 are all installed on the top plate. This allows for optimized space utilization even with the spherical design, thus effectively accommodating other devices.

[0128] From a circuit perspective, the water quality sensor 202 is electrically connected to the processor 215 and the battery 205 respectively; the wireless communicator 203 is electrically connected to the processor 215 and the battery 205 respectively; the Beidou locator 204 is electrically connected to the processor 215 and the battery 205 respectively; the water pump 207 is electrically connected to the processor 215 and the battery 205 respectively; the indicator light 212 is electrically connected to the processor 215 and the battery 205 respectively; the solar photovoltaic panel 213 is electrically connected to the battery 205; and the antenna 214 is electrically connected to the wireless communicator 203 and the Beidou locator 204 respectively.

[0129] The main function of the water pump 207, inlet pipe 208, connecting pipe 209, outlet pipe 210 and inner box 211 is to draw water from outside the floating water quality monitoring device 200 into its interior so that the water quality sensor 202 can detect it. This can avoid the problem of unstable detection during drifting, which would lead to distorted detection results.

[0130] Specifically, such as Figure 2 , Figure 5 , Figure 6 and Figure 7As shown, the inner box 211 forms a liquid storage space and is fixedly installed in the shell space near the first side; the water quality sensor 202 is fixedly installed to the inner box 211 by passing through the box wall of the inner box 211, with one part of the water quality sensor 202 disposed in the liquid storage space and the other part disposed in the shell space; the inlet pipe 208 passes through the spherical shell 201a and connects to the pump inlet of the water pump 207; the connecting pipe 209 passes through the box wall of the inner box 211 and connects to the outlet of the water pump 207; the outlet pipe 210 passes through the box walls of the shell and the inner box 211 respectively to connect the liquid storage space with the outside of the floating shell 201. The water pump 207 is disposed on one side of the inner box 211, and the outlet pipe 210 is disposed on the other side of the inner box 211; the end of the outlet pipe 210 located in the liquid storage space is higher than the end of the connecting pipe 209 located in the liquid storage space; at the same time, the end of the outlet pipe 210 located outside is higher than the end of the outlet pipe 210 located in the liquid storage space.

[0131] In this way, when water body testing is required, the processor 215 controls the water pump 207 to work to draw a certain amount of water into the storage space of the inner box 211. At the same time, the processor 215 determines a water sampling location based on the positioning data at the start and end of the operation of the water pump 207. Then, the processor 215 controls the water quality sensor 202 to perform detection. In this way, even if the floating water quality monitoring device 200 drifts very fast, the water it collects is stably stored inside the inner box 211.

[0132] In addition, if water needs to be drained from the inner box 211, simply control the water pump 207 to operate, which will reduce the water pressure and drain it out, while new water is pumped into the inner box 211.

[0133] The inner box 211 not only ensures the time required for the water quality sensor 202 to detect, but also isolates the devices inside the floating shell that cannot come into contact with the water from the water. At the same time, the water in the inner box 211 acts as a counterweight, and together with the weight of the sensor and the water pump 207, it can better maintain the floating posture of the floating water quality monitoring device 200.

[0134] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A water quality monitoring system, characterized in that: The water quality monitoring system includes: Several floating water quality monitoring devices are used to drift in water bodies to detect water quality parameters; The server is at least used to receive the water quality parameters detected by the floating water quality monitoring device. The floating water quality monitoring device includes at least a Beidou positioning module; The floating water quality monitoring device includes: Detection device, buoyancy shell, insert shell, sliding piston, drive device, energy storage device, control device and communication device; The detection device is used to detect water quality parameters, and the detection device includes at least one water quality sensor probe; The buoyancy shell is at least partially constructed as a spherical structure, the buoyancy shell having a central through hole and a buoyancy space; the central through hole extends through the buoyancy shell along a central axis; the buoyancy space is constructed as a closed interlayer space surrounding the central through hole; The buoyancy shell also has a mounting surface perpendicular to the central axis; The insert housing is configured to have an insertable shape and form a device space; the insert housing is at least partially accommodated in the central through hole of the buoyancy housing to form a detachable movable connection with the buoyancy housing; the insert housing is also provided with at least one probe through hole, through which the water quality sensor probe passes at least partially and is disposed in the central through hole; The sliding piston is slidably connected to the insert housing to have at least a first position and a second position relative to the insert housing; the sliding piston is located inside the central through hole when it is in the first position, and outside the central through hole when it is in the second position. The driving device is disposed between the sliding piston and the control device, and is used to drive the sliding piston so that the sliding piston can move from at least the first position to the second position; The energy storage device is used to store the electrical energy required by the drive device and the water quality sensor probe; the control device is used to control the drive device and to interact with the detection device; the communication device is used to enable the control device to communicate with the outside; the detection device, the drive device, the control device, the energy storage device and the communication device are arranged in the device space of the insert housing.

Images