Online monitoring system based on distributed water quality online monitoring device

Abstract

This invention relates to an online monitoring system based on a distributed online water quality monitoring device in the field of water quality monitoring technology. The system includes an online monitoring platform, a portable handheld mobile data terminal, and a distributed online water quality monitoring device. The online monitoring platform, the portable handheld mobile data terminal, and the distributed online water quality monitoring device communicate via an IP backbone network layer. Data exchange between the online monitoring platform, the portable handheld mobile data terminal, and the distributed online water quality monitoring device is achieved through the IP backbone network layer, enabling synchronization of water quality data detected by the online monitoring platform with the platform itself, thus ensuring the frequency and real-time nature of water quality monitoring updates.

Description

Technical Field

[0001] This invention relates to the field of water quality monitoring technology, specifically to an online monitoring system based on a distributed online water quality monitoring device. Background Technology

[0002] Traditional water quality monitoring has very limited coverage, and manual on-site sampling and testing are extensive methods with poor accuracy, effectiveness, and efficiency. It is difficult to systematically understand the real-time changes and pollution status of the entire water system and water environment, so accurate water quality analysis cannot be guaranteed. Therefore, in view of these situations, there is an urgent need to develop an online monitoring system based on distributed online water quality monitoring devices to meet the needs of actual water environment management and water quality surveys. Summary of the Invention

[0003] The purpose of this invention is to address the above-mentioned deficiencies and provide an online monitoring system based on a distributed online water quality monitoring device.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] An online monitoring system based on distributed online water quality monitoring devices includes an online monitoring system platform, a portable handheld mobile data terminal, and distributed online water quality monitoring devices;

[0006] The online monitoring system platform, portable handheld mobile data terminal, and distributed online water quality monitoring device are connected via a secure network communication module to form an IP backbone network layer. The online monitoring system platform, portable handheld mobile data terminal, and distributed online water quality monitoring device communicate with each other through the IP backbone network layer. Data interaction between the online monitoring system platform, portable handheld mobile data terminal, and distributed online water quality monitoring device is also achieved through the IP backbone network layer.

[0007] Both portable handheld mobile data terminals and distributed online water quality monitoring devices are equipped with ZigBee communication modules, and the ZigBee communication modules establish a self-organizing network for communication connection.

[0008] Both the portable handheld mobile data terminal and the distributed online water quality monitoring device are equipped with an RS485 communication module. The portable handheld mobile data terminal and the distributed online water quality monitoring device communicate locally via the RS485 communication module. Data exchange and command transmission between the portable handheld mobile data terminal and the distributed online water quality monitoring device can also be achieved through ZigBee and RS485 communication modules. This allows the distributed online water quality monitoring device to be controlled on-site via the portable handheld mobile data terminal, enabling convenient retrieval by staff. This eliminates the need for staff to travel to the monitoring point for retrieval, saving labor and significantly reducing the workload of staff.

[0009] As a further embodiment of the above description, the distributed online water quality monitoring device also includes a central control system, a sensor module, a data acquisition module, a data processing module, and a battery. The data acquisition module collects water samples, which are then analyzed by the sensor module to generate sample data. The data processing module compares and processes this data. An electrical connection is established between the central control system and the data processing module to upload the collected data to the central control system. The central control system interacts with the online monitoring system platform and a portable handheld mobile data terminal via a secure network communication module, an RS485 communication module, and a ZigBee communication module, respectively. The sensor module detects various water quality parameters, and the data processing module converts the sensor parameters into sample data recognizable by the central control system. This allows the distributed online water quality monitoring device to comprehensively monitor various aspects of water quality parameters.

[0010] As a further solution described above, the acquisition module includes a sampling pump, a solvent tank, and a filtration unit. When the sampling pump samples the water, the filtration unit filters out large impurities, ensuring that the water does not damage the internal components of the distributed online water quality monitoring device. For example, a filter screen is installed on the inner wall of the inlet of the sampling pump. Understandably, the filter screen on the inner wall of the inlet filters the water, preventing debris and other impurities from entering the cavity, ensuring its cleanliness, preventing blockages, and guaranteeing normal detection.

[0011] Water samples are collected and retained using sampling pumps, ensuring the authenticity of water data. The system is also equipped with solvent tanks for water analysis tests, enabling the distributed online water quality monitoring device to perform water quality solvent tests remotely.

[0012] As a further embodiment of the above description, the sensor module includes a COD analysis unit, a dissolved oxygen analysis unit, an NH3-N analysis unit, a phosphorus content analysis unit, a redox potential analysis unit, a suspended solids analysis unit, a pH value analysis unit, and an extension unit. These units analyze the collected samples to obtain water sample data. The COD analysis unit, dissolved oxygen analysis unit, NH3-N analysis unit, phosphorus content analysis unit, redox potential analysis unit, suspended solids analysis unit, pH value analysis unit, and extension unit are used to analyze the collected samples and obtain water sample data. The monitoring system includes a comprehensive water quality testing unit, an oxidation-reduction potential analysis unit, a suspended solids analysis unit, and a pH value analysis unit. These units provide multifaceted data on water quality. For example, the pH value analysis unit, composed of a pH sensor installed in a groove on the outer wall of the monitoring base, allows for real-time monitoring of the water's acidity and alkalinity. Multiple grooves on the outer wall of the testing chamber can accommodate different sensor modules, facilitating comprehensive water quality testing. Similarly, the oxidation-reduction potential analysis unit, composed of a potential sensor, provides readings that indicate the degree of pollution or disinfection during water quality testing. The monitoring system may also include other detectors for water quality analysis.

[0013] The sensor module also has an expansion unit, which can expand the water quality detection unit according to the actual water conditions.

[0014] As a further solution described above, the distributed online water quality monitoring device also includes a geolocation module, a visual monitoring module, and a solar power supply module. Both the visual monitoring module and the geolocation module are electrically connected to the central control system. The geolocation module acquires the geographical location information of the distributed online water quality monitoring device, which is then uploaded to the online monitoring system platform by the central control system. The solar power supply module is electrically connected to a battery. The online monitoring system platform can use the geolocation module to locate the geographical locations of the distributed online water quality monitoring devices in real time. Simultaneously, the visual monitoring module monitors the water surface environment of each body of water, and the solar power supply module further enhances the battery life of the distributed online water quality monitoring device.

[0015] As a further solution described above, the online monitoring system platform also includes a first sample data processing module and a water quality survey online management system. The first sample data processing module is electrically connected to the secure network communication module. The first sample data processing module receives water sample data from the distributed online water quality monitoring device through the secure network communication module, and is electrically connected to the water quality survey online management system to upload the water sample data to the water quality survey online management system.

[0016] As a further embodiment of the above description, the portable handheld mobile data terminal also includes a second sample data processing module, a handheld terminal control system, and a visualization module. These modules are electrically connected to the second sample data processing module via a secure network communication module, an RS485 communication module, and a ZigBee communication module. This allows the second sample data processing module to upload water sample data to the handheld terminal control system, which then constructs water monitoring comparison data. The visualization module then displays this water monitoring comparison data.

[0017] As a further solution, as described above, the online monitoring system platform, portable handheld mobile data terminal, and distributed online water quality monitoring device are all equipped with local data storage modules. The online monitoring system platform, portable handheld mobile data terminal, and distributed online water quality monitoring device communicate with each other via a secure network communication module, enabling the internal data of the local data storage modules to be accessed and interacted.

[0018] The beneficial effects of this invention are as follows:

[0019] This application presents an online monitoring system based on distributed online water quality monitoring devices. Multiple distributed online water quality monitoring devices are deployed within a water body, allowing for their deployment across multiple water areas. A secure network communication module is used to construct an IP backbone network layer between the online monitoring system platform, portable handheld mobile data terminals, and the distributed online water quality monitoring devices. This ensures synchronization of water quality data detected by the online monitoring system platform with the platform itself, guaranteeing the frequency and real-time nature of water quality monitoring updates. Furthermore, the method provides a self-organizing network communication connection between the portable handheld mobile data terminal and the distributed online water quality monitoring devices via a ZigBee communication module, enabling remote operation for on-site water area surveys. It also achieves real-time synchronous monitoring of data between the portable handheld mobile data terminal and the online monitoring system platform, making it suitable for widespread application in water environment management and water quality surveys. Attached Figure Description

[0020] Figure 1This is a three-dimensional structural diagram of the distributed online water quality monitoring device in the online monitoring system based on the distributed online water quality monitoring device of the present invention, taken from a first angle.

[0021] Figure 2 This is a schematic diagram of the structure of the distributed online water quality monitoring device in the online monitoring system based on the distributed online water quality monitoring device of the present invention from a second angle.

[0022] Figure 3 This is a schematic diagram of the structure of the distributed online water quality monitoring device in the online monitoring system based on the distributed online water quality monitoring device of the present invention from a third angle.

[0023] Figure 4 This is a schematic diagram of the modules of the online monitoring system based on the distributed online water quality monitoring device described in this invention. Detailed Implementation

[0024] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0025] Please see Figure 1-4 The specific implementation of the online monitoring system based on the distributed online water quality monitoring device includes an online monitoring system platform, a portable handheld mobile data terminal, and a distributed online water quality monitoring device.

[0026] The online monitoring system platform, portable handheld mobile data terminal, and distributed online water quality monitoring device are connected via a secure network communication module to form an IP backbone network layer. The online monitoring system platform, portable handheld mobile data terminal, and distributed online water quality monitoring device communicate with each other through the IP backbone network layer. Data exchange is performed between the online monitoring system platform, portable handheld mobile data terminal, and distributed online water quality monitoring device through the IP backbone network layer. By deploying the distributed online water quality monitoring device into the water area, the detection box 200, which is equipped with a sensor module and a data acquisition module at the bottom of the distributed online water quality monitoring device, falls to the bottom of the water. The sensor module detects the water in the water area and forms sample collection data.

[0027] Both the portable handheld mobile data terminal and the distributed online water quality monitoring device are equipped with ZigBee communication modules. The ZigBee communication modules establish a self-organizing network for communication. At the same time, the portable handheld mobile data terminal communicates with the ZigBee communication modules through the self-organizing network to control the thruster 600 in the distributed online water quality monitoring device, so that the distributed online water quality monitoring device can be manipulated and moved through the portable handheld mobile data terminal.

[0028] Both the portable handheld mobile data terminal and the distributed online water quality monitoring device are equipped with an RS485 communication module. The portable handheld mobile data terminal and the distributed online water quality monitoring device communicate locally via the RS485 communication module. Both the portable handheld mobile data terminal and the distributed online water quality monitoring device can exchange data and transmit commands via the ZigBee communication module and the RS485 communication module.

[0029] The online monitoring system platform, portable handheld mobile data terminal, and distributed online water quality monitoring device are all equipped with local data storage modules. The online monitoring system platform, portable handheld mobile data terminal, and distributed online water quality monitoring device communicate with each other through a secure network communication module, enabling the internal data of the local data storage module to be accessed and exchanged.

[0030] The distributed online water quality monitoring device also includes a central control system, a sensor module, a data acquisition module, a data processing module, and a battery. The data acquisition module collects water samples, the sensor module detects the collected samples to generate sample data, the data processing module compares and processes the sample data, and the central control system is electrically connected to the data processing module.

[0031] The collected data is uploaded to the central control system. The central control system interacts with the online monitoring system platform and the portable handheld mobile data terminal through a secure network communication module, an RS485 communication module, and a ZigBee communication module, respectively. The sensor module can detect various water quality parameters of the water body, and the data processing module converts the parameters collected by the sensor module into sample data that can be recognized by the central control system. This enables the distributed online water quality monitoring device to perform comprehensive detection of water quality parameters in all aspects of the water body.

[0032] The acquisition module includes a sampling pump, a solvent tank, and a filtration unit. When the sampling pump samples the water, the filtration unit filters out large impurities in the water to ensure that the water does not damage the internal components of the distributed online water quality monitoring device. The sampling pump collects and retains water samples, ensuring the authenticity of the water data. It is also equipped with a solvent tank for water analysis tests, enabling the distributed online water quality monitoring device to conduct water quality solvent tests remotely.

[0033] The sensor module includes a COD analysis unit, a dissolved oxygen analysis unit, an NH3-N analysis unit, a phosphorus content analysis unit, a redox potential analysis unit, a suspended solids analysis unit, a pH value analysis unit, and an expansion unit. These units analyze the collected samples to obtain water sample data. The sensor module's COD, dissolved oxygen, NH3-N, phosphorus content, redox potential, suspended solids, and pH value analysis units provide comprehensive water quality monitoring and obtain multifaceted data. Furthermore, the expansion unit allows for the expansion of the water quality analysis functions based on specific water conditions.

[0034] The distributed online water quality monitoring device also includes a geolocation module, a visual monitoring module, and a solar power supply module. Both the visual monitoring module and the geolocation module are electrically connected to the central control system. The geolocation module obtains the geolocation information of the distributed online water quality monitoring device, and the central control system uploads the geolocation information to the online monitoring system platform. The solar power supply module 2 is electrically connected to the battery. The online monitoring system platform can use the geolocation module to locate the geographical locations of the distributed online water quality monitoring device in real time. At the same time, the visual monitoring module 1 is used to monitor the water surface environment of each water area, and the solar power supply module 2 can also be used to improve the battery life of the distributed online water quality monitoring device.

[0035] In this embodiment, a distributed online water quality monitoring device 10 is provided, including a support plate 100, a detection box 200, a first rope 300, a positioning hook 400, a monitoring component, and at least one thruster 600. The detection box 200 is connected to a first surface of the support plate 100, and the detection box 200 has a cavity. A first end of the first rope 300 is connected to the side wall of the cavity, and the first rope 300 is movably disposed within the cavity. The positioning hook 400 is connected to a second end of the first rope 300. The monitoring component is disposed on the detection box 200, and the monitoring component is used to monitor the water body. Each of the thrusters 600 is disposed on the first surface of the support plate 100.

[0036] It should be noted that the support plate 100 has a flat structure and its density is less than that of water. The support plate 100 is made of a material with a density less than that of water, so that the support plate 100 can float on the water surface when placed in water. For example, the support plate 100 is made of plastic or foam material. The support plate 100 can serve as an installation device. The first surface of the support plate 100 is the surface in contact with the water. The support plate 100 is used to support and install the detection box 200, the detection components, and each propeller 600. The detection box 200 is installed on the first surface of the support plate 100, so that the detection box 200 can be immersed in the water to be tested. Specifically, the detection box 200 is hemispherical.

[0037] By setting the detection box 200 in a hemispherical shape, it is easier for the detection box 200 to be better immersed in the water. By providing a propeller 600, the propeller 600 can provide driving force for the movement of the support plate 100. In this embodiment, the propeller 600 is a propeller propeller 600. The propeller propeller 600 is a propeller that drives the propulsion shaft to rotate together with the host, draws water in from the suction surface of the blades and discharges it from the discharge surface, and uses the reaction force of the water to propel it forward. In this way, it is convenient for the staff to directly place the distributed online water quality monitoring device in the water area to be tested from the shore, and then start the propeller 600. The propeller 600 provides driving force to move the support plate 100 to the detection point, thereby moving the detection box 200 and the detection components to the detection point. The detection box 200 has a cavity, which can form a hollow box structure, and the first rope 300 can be stored in the cavity.

[0038] In this embodiment, a cable storage box is provided inside the cavity. The first rope 300 is stored inside the cable storage box and fixedly connected to the inner side wall of the cable storage box. A through hole is opened on the outer side wall of the middle part of the detection box 200. The through hole communicates with the cavity of the cable storage box, which facilitates the export of the first rope 300 from the cable storage box. A valve is provided on the inner side wall of the through hole, which can be used to lock the first rope 300, so as to control whether the first rope 300 is exported. When the distributed online water quality monitoring device moves to a specific detection point, the first rope 300 is released from the cable storage box. The positioning hook 400 is made of metal and is made into a pointed hook shape.

[0039] The positioning hook 40 descends naturally in the water under the influence of gravity and inserts into the bottom sediment, thus fixing the support plate 100 and preventing it from moving arbitrarily. This ensures that the detection box 200 and monitoring components can perform normal water quality monitoring. After the monitoring is completed, the propeller 600 provides driving force to move the support plate 100 and pull the positioning hook 400 out of the sediment, bringing the support plate 100 back to the shore. This facilitates the retrieval of the distributed online water quality monitoring device by staff, eliminating the need to travel to the detection point for retrieval, saving labor and significantly reducing the workload of the staff.

[0040] Please see Figure 1 and Figure 2 In one embodiment, a second rope 700 is also included, which is connected to the positioning hook 400. It is understood that by providing the second rope 700 for connection to the positioning hook 400, the length of the second rope 700 can be set according to the distance of the detection point in the specific water area to be monitored, thus facilitating the extension of the second rope 700 according to the movement distance of the positioning hook 400. The second end of the second rope 700 can be used to connect to a fixed structure on the shore of the water area. When monitoring is completed and the distributed online water quality monitoring device needs to be retrieved, the staff on the shore can pull the second rope 700 to pull the positioning hook 400 out of the mud and sand, and by retrieving the second rope 700, the support plate 100 can be moved, thereby retrieving the distributed online water quality monitoring device, improving its practicality.

[0041] Please see Figure 1 and Figure 2 In one embodiment, the monitoring component includes a pH sensor 510, and a groove 210 is formed on the outer wall of the detection chamber 200, within which the pH sensor 510 is disposed. It is understood that by providing the pH sensor 510, which is installed in the groove 210 on the outer wall of the detection chamber 200, the acidity or alkalinity of the water can be detected in real time. In this embodiment, multiple grooves 210 are formed on the outer wall of the detection chamber 200, which can accommodate different water quality detectors, thereby facilitating comprehensive water quality monitoring. For example, the monitoring component also includes a temperature sensor 520, which can detect the temperature of the water. The monitoring component also includes a potential sensor 530, whose potential reading during water quality testing can determine the degree of pollution or disinfection. The monitoring component may also include other water quality detectors, which can be installed and configured according to specific testing needs; these will not be elaborated upon in this embodiment.

[0042] In one embodiment, the outer wall of the detection box has multiple water inlets, each of which communicates with the cavity. A valve is installed on the inner wall of each water inlet. Understandably, by providing water inlets, water can be introduced into the cavity. A water detector can be installed on the inner wall of the cavity to monitor the water introduced into the cavity. The valves on the water inlets can control whether water is introduced, making it highly practical. In this embodiment, the monitoring component also includes an ammonia nitrogen sensor, which is installed on the inner wall of the cavity. By installing the ammonia nitrogen sensor inside the cavity, it can be used in conjunction with the water inlets and valves to sample and detect the ammonia nitrogen content in the water, making it highly practical.

[0043] Please see Figure 2 In one embodiment, a filter screen 800 is provided on the inner wall of each water inlet. It is understood that by providing the filter screen 800 on the inner wall of the water inlet, the water can be filtered, preventing debris and other impurities from entering the cavity, ensuring the cavity remains clean, preventing blockages, and ensuring normal testing.

[0044] In one embodiment, the system further includes a water pump, a water pumping pipe, and a water outlet pipe. The water pump is mounted on the outer wall of the testing chamber. One end of the water pumping pipe is connected to the cavity, and the other end of the water pumping pipe is connected to the water pump. The water outlet pipe is also connected to the water pump. It is understood that by providing a water pump, with its input and output ends connected to the water pumping pipe and water outlet pipe respectively, it is convenient to pump water from the cavity of the testing chamber to the external environment, achieving self-cleaning of the testing chamber and facilitating subsequent water extraction and testing, thus improving its practicality.

[0045] Please see Figure 1 In one embodiment, the system further includes a mounting column 900 and multiple solar panels 910. The mounting column 900 is disposed on the second surface of the support plate 100, and each solar panel 910 is equidistantly disposed on the mounting column 900 around its central axis. It is understood that by providing solar panels 910 (also known as solar cells or solar chips), which are photoelectric semiconductor wafers that directly generate electricity using sunlight, the mounting column 900 is vertically mounted on the middle of the second surface of the support plate 100. The second surface of the support plate 100 is opposite to the first surface and is the side of the support plate 100 furthest from the water body. By providing multiple solar panels 910, which are evenly distributed on the mounting column 900, the system can comprehensively receive sunlight, thereby better generating electricity. This can power electrical components such as the pH sensor 510, temperature sensor 520, potential sensor 530, valves, ammonia nitrogen sensor, and water pump, enabling long-term monitoring of the water body and making it more practical.

[0046] Please see Figure 1 and Figure 2 In one embodiment, a camera 920 is also included, which is disposed on the end of the mounting post 900 away from the support plate 100. It is understood that by including the camera 920, in this embodiment, the camera 920 is a 360-degree camera, which can monitor and photograph the water area, observe the situation of garbage or floating objects on the water surface, and thus understand the pollution status of the water area.

[0047] Please see Figure 1 and Figure 2 In one embodiment, an LED indicator 930 is also included, which is disposed on the second surface of the support plate 100. It is understood that by providing the LED indicator 930, it can serve an indicative function; for example, in the dark, the LED indicator 930 lighting up can serve as an indicator, making it highly practical.

[0048] Please see Figure 1 and Figure 2 In one embodiment, a handle 940 is also included, which is connected to the side wall of the support plate 100. In this embodiment, two handles 940 are provided, which are respectively provided on two opposite side walls of the support plate 100. By providing handles 940, the handles 940 can serve as leverage points, making it convenient for staff to lift the online water monitoring device and move it.

[0049] Please see Figure 1 and Figure 2 In one embodiment, a buffer ring is also included, the buffer ring comprising an elastic element 951 and two mounting pieces 952, the two mounting pieces 952 being respectively disposed on the first rope body 300, and the two mounting pieces 952 being respectively connected to both ends of the elastic element 951. Understandably, by incorporating the elastic element 951, which in this embodiment is a hollow spring, the elastic element 951 possesses good elasticity. Each of the two mounting pieces 952 has a through hole in its center, allowing the mounting pieces 952 to be threaded onto the first rope 300. Simultaneously, the spring is also threaded onto the first rope 300 and sandwiched between the two mounting pieces 952, connecting to them. This forms a buffer ring structure on the second rope. When the positioning hook 400 descends to the bottom of the water, the elastic element acts as a buffer, reducing the impact of the impact force on the positioning hook 400 on the support plate 100. It also helps to buffer the impact force of the water flow, preventing the support plate 100 from shifting arbitrarily and ensuring normal monitoring.

[0050] Simultaneously, a self-organizing network is established between the portable handheld mobile data terminal and the distributed online water quality monitoring device via a ZigBee communication module, enabling the portable handheld mobile data terminal to have functions such as data viewing and input, geographic location map navigation, equipment management, photo and video recording, positioning, and scanning recognition.

[0051] The online monitoring system platform also includes a first sample data processing module and a water quality survey online management system. The first sample data processing module is electrically connected to the secure network communication module. The first sample data processing module receives water sample data from the distributed water quality online monitoring device through the secure network communication module, and is electrically connected to the water quality survey online management system to upload the water sample data to the water quality survey online management system.

[0052] The portable handheld mobile data terminal also includes a second sample data processing module, a handheld terminal control system, and a visualization module. These modules are electrically connected to the second sample data processing module via a secure network communication module, an RS485 communication module, and a ZigBee communication module. This allows the second sample data processing module to upload water sample data to the handheld terminal control system. The handheld terminal control system then constructs water body monitoring comparison data, which is displayed by the visualization module. The visualization module provides comprehensive and reliable data analysis, automatic charting, automatic monitoring and early warning, automatic generation and marking of water system maps, and data storage functions for water quality monitoring. This enables timely understanding of the water quality status in the regional water system, providing timely and reliable online water quality monitoring and management.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present invention without departing from the scope of the present invention are within the scope of the present invention.

Claims

1. An online monitoring system based on a distributed online water quality monitoring device, characterized in that: This includes online monitoring system platforms, portable handheld mobile data terminals, and distributed online water quality monitoring devices; The online monitoring system platform, portable handheld mobile data terminal, and distributed online water quality monitoring device are connected via a secure network communication module to form an IP backbone network layer. The online monitoring system platform, portable handheld mobile data terminal, and distributed online water quality monitoring device communicate with each other through the IP backbone network layer. Data interaction between the online monitoring system platform, portable handheld mobile data terminal, and distributed online water quality monitoring device is also achieved through the IP backbone network layer. Both portable handheld mobile data terminals and distributed online water quality monitoring devices are equipped with ZigBee communication modules, and the ZigBee communication modules establish a self-organizing network for communication connection. Both the portable handheld mobile data terminal and the distributed online water quality monitoring device are equipped with an RS485 communication module. The portable handheld mobile data terminal and the distributed online water quality monitoring device communicate locally via the RS485 communication module. Both the portable handheld mobile data terminal and the distributed online water quality monitoring device can exchange data and transmit commands via the ZigBee communication module and the RS485 communication module. The distributed online water quality monitoring device includes a support plate, a detection box, a first rope, a buffer ring, a second rope, a positioning hook, a water pump, a pumping pipe, an outlet pipe, a monitoring component, and at least one thruster. The detection box is connected to the first side of the support plate and has a cavity. The first end of the first rope is connected to the side wall of the cavity and is movably disposed within the cavity. The positioning hook is connected to the second end of the first rope. The monitoring component is mounted on the detection box and is used to monitor the water quality. Each thruster is positioned on... On the first surface of the support plate, the support plate is a flat plate structure, the detection box is hemispherical, a wire storage box is provided in the cavity, the first rope is stored in the wire storage box and fixedly connected to the inner side wall of the wire storage box, a through hole is opened on the middle outer side wall of the detection box, the through hole communicates with the cavity of the wire storage box, a valve is provided on the inner side wall of the through hole, the buffer ring includes an elastic element and two mounting pieces, the two mounting pieces are respectively disposed on the first rope, the two mounting pieces are respectively connected to the two ends of the elastic element, and the second rope is connected to the positioning hook. The water pump is installed on the outer wall of the test box. One end of the water pump pipe is connected to the cavity, and the other end of the water pump pipe is connected to the water pump. The water outlet pipe is connected to the water pump.

2. The online monitoring system based on a distributed online water quality monitoring device according to claim 1, characterized in that: The distributed online water quality monitoring device also includes a central control system, a sensor module, a data acquisition module, a data processing module, and a battery. The data acquisition module collects water samples, the sensor module detects the collected samples to generate sample data, the data processing module compares and processes the sample data, and the central control system and data processing module are electrically connected to each other to upload the collected data to the central control system. The central control system interacts with the online monitoring system platform and the portable handheld mobile data terminal through a secure network communication module, an RS485 communication module, and a ZigBee communication module, respectively.

3. The online monitoring system based on a distributed online water quality monitoring device according to claim 2, characterized in that: The acquisition module includes a sampling pump, a solvent tank, and a filtration unit.

4. The online monitoring system based on a distributed online water quality monitoring device according to claim 2, characterized in that: The sensor module includes a COD analysis unit, a dissolved oxygen analysis unit, an NH3-N analysis unit, a phosphorus content analysis unit, a redox potential analysis unit, a suspended solids analysis unit, a pH value analysis unit, and an extension unit. The collected samples are analyzed by the COD analysis unit, dissolved oxygen analysis unit, NH3-N analysis unit, phosphorus content analysis unit, redox potential analysis unit, suspended solids analysis unit, pH value analysis unit, and extension unit to obtain water sample data.

5. The online monitoring system based on a distributed online water quality monitoring device according to claim 2, characterized in that: The distributed online water quality monitoring device also includes a geographic location module, a visual monitoring module, and a solar power supply module. The visual monitoring module and the geographic location module are electrically connected to the central control system. The geographic location module obtains the geographic location information of the distributed online water quality monitoring device, and the central control system uploads the geographic location information to the online monitoring system platform. The solar power supply module is electrically connected to the battery.

6. The online monitoring system based on a distributed online water quality monitoring device according to claim 1, characterized in that: The online monitoring system platform also includes a first sample data processing module and a water quality survey online management system. The first sample data processing module is electrically connected to a secure network communication module. The first sample data processing module receives water sample data from the distributed water quality online monitoring device through the secure network communication module, and is electrically connected to the water quality survey online management system to upload the water sample data to the water quality survey online management system.

7. The online monitoring system based on a distributed online water quality monitoring device according to claim 1, characterized in that: The portable handheld mobile data terminal also includes a second sample data processing module, a handheld terminal control system, and a visualization module. The second sample data processing module is electrically connected to the secure network communication module, RS485 communication module, and ZigBee communication module, enabling the second sample data processing module to upload water sample data to the handheld terminal control system. The handheld terminal control system constructs water monitoring comparison data, and the visualization module displays the water monitoring comparison data.

8. The online monitoring system based on a distributed online water quality monitoring device according to any one of claims 1-7, characterized in that: The online monitoring system platform, portable handheld mobile data terminal, and distributed online water quality monitoring device are all equipped with local data storage modules. The online monitoring system platform, portable handheld mobile data terminal, and distributed online water quality monitoring device communicate with each other through a secure network communication module, enabling the internal data of the local data storage modules to be mobilized and interacted.

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