In-situ monitoring device for reservoir tail

Abstract

The utility model relates to an in-situ monitoring device for a reservoir tail. The in-situ monitoring device comprises a body device, a semi-fixed device, a sampling device, a water quality analysis component, a monitoring system and a central control system, the central control system is in control connection with a monitoring system, the monitoring system is located in the semi-fixed device, and the monitoring system collects data of the semi-fixed device and the water quality analysis assembly; the water quality analysis assembly is installed on the upper half portion of the body device, the sampling device is installed on the lower half portion of the body device, the semi-fixing devices are located on the two sides of the body device, and the central control system timely converts and records the reservoir tail water level according to the recorded water level and the positions of the semi-fixing devices. The in-situ monitoring device for the reservoir tail carries out on-line real-time monitoring on the water quality and the water level of the reservoir tail by utilizing the in-situ monitoring technology and the water level change aiming at the change of the water level and the water quality change of the reservoir tail.

Description

Technical Field

[0001] This utility model relates to the field of water quality analysis and monitoring technology, specifically to an in-situ monitoring device at the tail of a reservoir. Background Technology

[0002] The tail end of a reservoir is a critical area for water resource management and protection, as its water flow dynamics and water quality directly impact the downstream ecological environment, agricultural irrigation, and urban water supply security. The hydrological characteristics of the reservoir tail are complex and variable, not only bearing the terminal effect of the reservoir's regulation function but also frequently influenced by multiple factors such as upstream inflow, seasonal rainfall, and human activities. Against this backdrop, in-situ monitoring of the reservoir tail is particularly important, encompassing monitoring dimensions such as water flow velocity, water level fluctuations, and water quality components.

[0003] In-situ monitoring at the tail end of a reservoir is a cutting-edge interdisciplinary field of river ecology, hydrology, and environmental engineering. It aims to comprehensively assess the health of the river ecosystem, predict trends in water environment changes, and provide a scientific basis for water resource management, ecological protection, and disaster early warning by accurately measuring changes in river water level, water quality parameters (such as pH, redox potential, dissolved oxygen, and turbidity), and water level information. This monitoring data plays an irreplaceable role in formulating reasonable reservoir operation strategies, protecting downstream water quality, and preventing natural disasters such as floods and droughts.

[0004] The development of in-situ online monitoring technology has made it possible to achieve efficient, real-time, and continuous monitoring of the reservoir tail end. This technology utilizes advanced sensors and remote communication technology to directly transmit monitoring data to a data center for analysis and processing, greatly improving the timeliness and accuracy of monitoring. However, the unique hydrological conditions at the reservoir tail end, such as significant fluctuations in water level, changes in water flow velocity, and potential pollutant input, pose challenges to in-situ monitoring. In particular, the simultaneous monitoring of water quality and water level is crucial for accurately depicting river hydrological dynamics and responding promptly to changes in water quality.

[0005] Currently, although various monitoring technologies and equipment are applied to river monitoring, they still fall short when facing the complex and ever-changing environment at the tail end of reservoirs. Given this situation, developing a device capable of adapting to the unique environment of the reservoir tail section and stably and accurately monitoring water quality and level changes in situ is particularly urgent. This device needs to have the ability to automatically adapt to water level changes, capturing water quality parameters and water level fluctuations in real time through intelligent sensor technology. Combined with a remote early warning system, it can achieve immediate notification and handling of abnormal situations, thereby ensuring monitoring efficiency while effectively reducing labor costs and improving the level of intelligent water resource management in the reservoir tail section. Utility Model Content

[0006] Based on the above description, this utility model provides an in-situ monitoring device for the tail of a reservoir. In response to the changes in water quality in the reservoir area caused by the fluctuation of water level at the tail of the reservoir, it utilizes in-situ monitoring technology and water level changes to conduct online real-time monitoring of water quality, water level and related physicochemical indicators at any time. Then, it performs data storage, analysis and early warning through a monitoring system. It also conducts timely, efficient and economical dynamic monitoring and feedback on environmental indicators in the tail of the reservoir area.

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: an in-situ monitoring device for the tail of a reservoir, comprising: a main body device, a semi-fixed device, a sampling device, a water quality analysis component, a monitoring system, and a central control system; wherein...

[0008] The central control system controls and connects to the monitoring system, which is located inside the semi-fixed device. The monitoring system collects data from the semi-fixed device and the water quality analysis components.

[0009] The water quality analysis component is installed on the upper half of the main body device, the sampling device is installed on the lower half of the main body device, the semi-fixed device is located on both sides of the main body device, and the central control system calculates and records the reservoir tail water level in a timely manner based on the recorded water level and the position of the semi-fixed device.

[0010] Based on the above technical solution, the present invention can be further improved as follows.

[0011] Furthermore, the semi-fixed device is configured as a tubular structure, and the height of the semi-fixed device is not less than the historical highest increase at the tail end of the reservoir and not more than twice the historical highest increase.

[0012] Furthermore, the water quality analysis component also includes instruments for detecting turbidity, total suspended solids, and volatile organic compounds.

[0013] Furthermore, the height of the main body device is adjustable, and the main body device 1 monitors the changes in the water level at the tail end of the reservoir.

[0014] Furthermore, the main body device is equipped with a tether hook around its perimeter to prevent the device from drifting away.

[0015] Furthermore, the semi-fixed device is installed on the shore and connected to the main body device around its perimeter.

[0016] Furthermore, the sampling device is equipped with a control system, which is capable of collecting samples at regular intervals.

[0017] Furthermore, the monitoring system includes: a monitoring terminal and a management server; the monitoring terminal decodes, displays, and records the transmitted video signals; the management server is responsible for the management and maintenance of the monitoring terminal and network transmission equipment, realizing remote management and control of the remote monitoring system, and the monitoring system is uniformly integrated and controlled by a computer terminal.

[0018] Furthermore, the water quality analysis component includes a water quality pH probe, an oxidation-reduction potential probe, a dissolved oxygen probe, a conductivity probe, and a water temperature probe. The water quality pH probe, oxidation-reduction potential probe, dissolved oxygen probe, conductivity probe, and water temperature probe are all electrically connected to the monitoring system (5) and are all monitored and controlled by the monitoring system.

[0019] Furthermore, the central control system includes a data storage module, an alarm component, and a display and setting module, all of which are uniformly controlled and operated by a computer terminal.

[0020] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0021] This invention provides an in-situ monitoring device for the tail end of a reservoir. The main body of the device remains constantly positioned above the reservoir surface due to its own weight and buoyancy. Sensors within the device record the distance between the main body and a semi-fixed device in real time, and the reservoir tail water level data is calculated based on the position of the semi-fixed device. Simultaneously, the floating device is equipped with various water quality indicator probes for real-time monitoring of relevant indicators. The data is transmitted to a backend for storage using sensors, and specific indicator ranges are set to achieve online monitoring and early warning. This device utilizes in-situ monitoring technology and water level changes to conduct online real-time monitoring of the reservoir tail water quality and level. Attached Figure Description

[0022] Figure 1 A schematic diagram of the structure of an in-situ monitoring device at the tail of a reservoir provided by this utility model;

[0023] Figure 2 The present invention provides dynamic data of water level indicators collected at the tail of a simulated reservoir over a monitoring period.

[0024] Figure 3 The present invention provides dynamic data of water quality indicators collected over a monitoring period based on the simulated reservoir tail water level.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Body device;

[0027] 2. Semi-fixed device; 21. Fixing rope;

[0028] 3. Sampling device; 31. Sampling port;

[0029] 4. Water quality analysis components; 41. pH probe; 42. Oxidation-reduction potential probe; 43. Dissolved oxygen probe; 44. Conductivity probe; 45. Water temperature probe;

[0030] 5. Monitoring system;

[0031] 6. Central control system. Detailed Implementation

[0032] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be more thorough and complete.

[0033] It should be noted that the in-situ monitoring device for the tail end of a reservoir described in this utility model is used to record water level data in a timely manner when water level changes are caused by natural conditions such as seasonal fluctuations or human activities such as reservoir storage and release. Simultaneously, a water quality sampler monitors the basic physicochemical properties of the water body according to a programmed procedure. This monitoring device, in response to water quality changes caused by drawdown at the reservoir tail end, utilizes in-situ monitoring technology to achieve online real-time monitoring of relevant physicochemical indicators such as water quality and water level at any given time. Subsequently, the monitoring system completes data storage, analysis, and early warning tasks. Furthermore, this device can also conduct timely, efficient, and economical dynamic monitoring and feedback of environmental indicators in the reservoir area.

[0034] Understandably, given the deficiencies in the prior art, this utility model provides an in-situ monitoring device for the tail end of a reservoir, specifically as follows: Figure 1 As shown, the device includes: a main body device 1, a semi-fixed device 2, a sampling device 3, a water quality analysis component 4, a monitoring system 5, and a central control system 6, wherein...

[0035] The central control system 6 controls and connects to the monitoring system 5, which collects data from the semi-fixed device 2 and the water quality analysis component 4. The main body device 1 is equipped with components for fixing around it, mainly rope hooks, to prevent the device from drifting away with the water flow.

[0036] The semi-fixed device 2 is installed on the bank and connected to the main body device 1 around the perimeter. It can provide timely feedback on water level rises and falls. Once the status quo at the reservoir tail changes, it can quickly collect and obtain the relevant parameters, greatly saving manpower costs. At the same time, the monitoring system 5 monitors and controls the in-situ online data of the water quality analysis component 4 to obtain first-hand environmental data, which is of great significance for judging the status of the reservoir tail.

[0037] The semi-fixed device 2 is a tubular structure, and the monitoring system 5 is located inside the semi-fixed device 2. The height of the semi-fixed device 2 should be no less than the historical highest rise in water level at the tail end of the reservoir and no more than twice the historical highest rise in water level, so that it can effectively cover almost all water level fluctuations in the reservoir, allowing a single installation to meet water level monitoring needs under most conditions.

[0038] The water quality analysis component 4 is installed on the upper part of the main body device 1. The water quality analysis component 4 includes a pH probe 41, a redox potential probe 42, a dissolved oxygen meter 43, a conductivity probe 44, and a water temperature probe 45. The water quality pH probe 41 measures the water pH based on the change of acid-base indicator or glass electrode potential. The dissolved oxygen probe 43 measures the dissolved oxygen in the water by using the polarization potential of the oxygen electrode based on an electrochemical method. The conductivity probe 44 measures the conductivity of the water sample by using a combination of conductive materials and a conductivity meter. The water quality thermometer 45 detects and records the temperature through a temperature sensor. The pH probe 41, redox potential probe 42, dissolved oxygen meter 43, conductivity probe 44, and water temperature probe 45 are all monitored and controlled by the central control system 6.

[0039] The water quality analysis component 4 also includes instruments for detecting turbidity and total suspended solids, which can be supplemented with the determination of characteristic elements such as nitrogen, phosphorus, and heavy metals as needed. The water quality analysis component 4 utilizes different sensors to measure different parameters in the water body; for example, the turbidity measurement principle is based on photoelectric sensing technology, reflecting the degree of turbidity of the water sample through the degree of light scattering. The sensor probe is the core component of water quality parameter analysis, converting physical and chemical changes in the water body into electrical signals, which are then converted into readable digital or graphical results by the internal processing system and monitoring system 5. Specifically, the water quality analysis component 4 utilizes the characteristics of the reservoir's tail-end fluctuations, combined with the semi-fixed device 2, and the central control system 6 to promptly open or close the relevant monitoring probes of the water quality analysis component 4. This not only ensures that the acquired monitoring indicators are timely and effective but also avoids a large amount of manual sampling and analysis, making it a highly efficient device with time-saving and labor-saving functions.

[0040] The monitoring system includes a monitoring terminal and a management server. The monitoring terminal decodes, displays, and records the transmitted video signals. The management server is responsible for the management and maintenance of the monitoring terminal and network transmission equipment, enabling remote management and control of the remote monitoring system.

[0041] The central control system 6 includes an alarm component, a data storage module, and a display and setting module. It is centrally controlled and operated by a computer terminal. The data storage module and the display and setting module are the main daily functional modules, while the alarm component provides alerts in emergency situations.

[0042] The central control system 6 monitors and analyzes the basic physicochemical properties of the reservoir tail at different times, provides timely early warning and handling in special circumstances, classifies and stores the data, sets early warning values ​​for each parameter, promptly feeds back abnormal data, and saves complete data for at least one drawdown cycle.

[0043] Considering the lifespan of the device and the amount of data stored, the monitoring device of this invention has a default program of collecting data every 2 hours, but sampling can be performed at any time via the control terminal. Each parameter is set with a certain warning range; then, the central control system 6 performs data storage, analysis, and warning functions, conducting timely, efficient, and economical dynamic monitoring and feedback for environmental indicators at the reservoir tail end. When any indicator parameter exceeds the warning range, the central control system 6 promptly feeds back to relevant technical personnel to handle the abnormal situation. First, it confirms whether the device is operating normally, then analyzes the exceeding data and proposes corresponding solutions.

[0044] In this embodiment, the normal range of water pH is 6-8, and the warning range is set as: pH < 5 or pH > 9; the normal range of oxidation-reduction potential is -200mV to 200mV, and the warning range is set as: less than -400mV or greater than 400mV; the warning range of conductivity is set as greater than 1000μs / cm; the normal range of dissolved oxygen is 5-8mg / L, and the warning range is set as: less than 3mg / L or greater than 10mg / L.

[0045] This embodiment uses the tail end of a reservoir as the monitoring area to collect data on water level and water quality changes from April to June. The water level change data is as follows: Figure 2 As shown, during the 20-day monitoring period, the water level fluctuation was within 1 meter, which is consistent with the reservoir's operational status; the water quality monitoring data are as follows: Figure 3 As shown, all major conventional indicators meet the effluent water quality standards. (Through...) Figure 2 and Figure 3 As shown, this device can effectively monitor the water level and water quality at the reservoir tail end, and perform data storage and other processing in a timely manner.

[0046] The above description is merely a preferred embodiment of the present utility model, and should not be construed as limiting the scope of the present utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present utility model, and these improvements and modifications are also considered to be within the scope of protection of the present utility model.

Claims

1. A device for in-situ monitoring of a reservoir tailrace, characterized in that, include: The main body device (1), semi-fixed device (2), sampling device (3), water quality analysis components (4), monitoring system (5) and central control system (6); The central control system (6) controls the monitoring system (5), which is located inside the semi-fixed device (2). The monitoring system (5) collects data from the semi-fixed device (2) and the water quality analysis component (4). The water quality analysis component (4) is installed on the upper half of the main body device (1), the sampling device (3) is installed on the lower half of the main body device (1), the semi-fixed device (2) is located on both sides of the main body device (1), and the central control system (6) calculates and records the reservoir tail water level in a timely manner according to the recorded water level and the position of the semi-fixed device (2).

2. The in-situ monitoring device for the tail of a reservoir according to claim 1, characterized in that: The semi-fixed device (2) is configured as a tubular structure, and the height of the semi-fixed device (2) is not less than the historical highest increase at the tail end of the reservoir and not more than twice the historical highest increase.

3. The in-situ monitoring device for the tail end of a reservoir as described in claim 1, characterized in that: The water quality analysis component (4) also includes instruments for detecting turbidity, total suspended solids, and volatile organic compounds.

4. The in-situ monitoring device for the tail of a reservoir according to claim 1, characterized in that: The height of the main body device (1) is adjustable, and the main body device (1) monitors the changes in the water level at the tail of the reservoir.

5. The in-situ monitoring device for the tail of a reservoir according to claim 4, characterized in that: The main body device (1) is provided with a rope hook around its perimeter to prevent the device from drifting away.

6. The in-situ monitoring device for the tail of a reservoir according to claim 1, characterized in that: The semi-fixed device (2) is installed on the shore and connected around the main body device (1).

7. The in-situ monitoring device for the tail of a reservoir according to claim 1, characterized in that: The monitoring system (5) includes: a monitoring terminal and a management server. The monitoring terminal decodes, displays, and records the transmitted video signals. The management server is responsible for the management and maintenance of the monitoring terminal and network transmission equipment, and realizes the remote management and control of the remote monitoring system (5). The monitoring terminal and the management server are uniformly integrated and controlled by a computer terminal.

8. The in-situ monitoring device for the tail of a reservoir according to claim 1, characterized in that: The sampling device (3) is equipped with a control system, which is capable of collecting samples at regular intervals.

9. The in-situ monitoring device for the tail of a reservoir according to claim 1, characterized in that: The water quality analysis component (4) includes a water quality pH probe (41), an oxidation-reduction potential probe (42), a dissolved oxygen probe (43), a conductivity probe (44), and a water temperature probe (45). The water quality pH probe (41), oxidation-reduction potential probe (42), dissolved oxygen probe (43), conductivity probe (44), and water temperature probe (45) are all electrically connected to the monitoring system (5) and are all monitored and controlled by the monitoring system (5).

10. The in-situ monitoring device for the tail of a reservoir according to claim 1, characterized in that: The central control system (6) includes a data storage module, an alarm component, and a display and setting module, which are uniformly controlled and operated by a computer terminal.

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