A water conservancy monitoring device for water conservancy projects

Abstract

This utility model relates to the technical field of water conservancy monitoring, specifically providing a water conservancy monitoring device for water conservancy projects, aiming to solve the problem that existing water conservancy monitoring devices are unable to issue timely early warnings in response to small-scale floods. The monitoring device of this utility model includes a water level measuring instrument, a flow velocity measuring instrument, a first comparator, a second comparator, and an alarm. The first comparator compares the measurement data of the water level measuring instrument with a preset water level, and the second comparator compares the measurement data of the flow velocity measuring instrument with a preset flow velocity. The alarm can select whether to issue an early warning message based on the output results of the first and second comparators. When the water flow velocity is higher than the preset flow velocity, the first comparator outputs a signal; when the water level is higher than the preset water level, the second comparator outputs a signal. After receiving the signal output from either the first or second comparator, the alarm outputs an early warning message locally, saving information transmission waiting time and providing early warning information as soon as possible.

Description

Technical Field

[0001] This utility model relates to the technical field of water conservancy monitoring, and specifically provides a water conservancy monitoring device for water conservancy projects. Background Technology

[0002] In terms of water conservancy project scheduling, understanding the hydrological conditions of upstream and downstream areas (such as water flow velocity, water level, and rainfall) allows for estimation of the hydrological conditions in the future, facilitating scheduling and reducing the likelihood of flooding. For some small and medium-sized rivers, extreme rainfall can cause water levels to rise rapidly, along with high flow velocities, easily leading to small-scale floods that can affect the safety of people and property in localized areas.

[0003] Current water monitoring equipment includes separately installed flow velocity and water level meters. Both transmit the measured parameters wirelessly to a central control station, which then monitors and analyzes the data to determine the likelihood of flooding and issue timely warnings. However, current flow velocity and water level meters typically transmit the data recorded within a certain time interval (e.g., five or ten minutes) to the central control station all at once, resulting in significant latency. Since small-scale floods develop quickly, the failure to issue timely warnings increases the likelihood of casualties and property damage.

[0004] Therefore, there is an urgent need for a water conservancy monitoring device for water conservancy projects to solve the problem that existing water conservancy monitoring devices are unable to issue timely early warnings when dealing with small-scale floods. Utility Model Content

[0005] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problem that existing water conservancy monitoring devices are unable to issue timely early warnings when dealing with small-scale floods.

[0006] In a first aspect, this utility model provides a water conservancy monitoring device for water conservancy projects, comprising: a water level measuring instrument for measuring water level; a flow velocity measuring instrument for measuring water flow velocity; a first comparator for comparing the measurement data of the water level measuring instrument with a preset water level; a second comparator for comparing the measurement data of the flow velocity measuring instrument with a preset flow velocity; and an alarm for selecting whether to issue a warning message based on the output results of the first comparator and the second comparator.

[0007] In a specific embodiment of the water conservancy monitoring device for the above-mentioned water conservancy project, when the measurement data of the water level measuring instrument is higher than the preset water level, the first comparator outputs a high-level signal; when the measurement data of the flow velocity measuring instrument is higher than the preset flow velocity, the second comparator outputs a high-level signal; when one of the first comparator and the second comparator outputs a high-level signal, the alarm issues a warning message.

[0008] In the specific implementation of the water conservancy monitoring device for the above-mentioned water conservancy project, the preset water level is the warning water level at the location of the water conservancy monitoring device.

[0009] In the specific implementation of the water conservancy monitoring device for the above-mentioned water conservancy project, the preset flow velocity is the maximum flow velocity recorded when no flood occurs at the location of the water conservancy monitoring device.

[0010] In a specific embodiment of the water conservancy monitoring device for the above-mentioned water conservancy project, the water conservancy monitoring device further includes a base, a storage battery, and a photovoltaic module. The flow velocity meter, the water level meter, the storage battery, and the photovoltaic module are all installed on the base. The storage battery supplies power to the water level meter, the flow velocity meter, and the electronic components, and the photovoltaic module charges the storage battery.

[0011] In a specific embodiment of the water conservancy monitoring device for the above-mentioned water conservancy project, the flow velocity measuring instrument includes: a plate-shaped flow guide, the first end of which is triangular; and a paddle-type measuring instrument installed at the second end of the flow guide, the axis of which is parallel to the length direction of the flow guide.

[0012] In a specific embodiment of the water conservancy monitoring device for the above-mentioned water conservancy project, the water level measuring instrument includes: a mounting bracket; an outer cylinder, which is vertically set and fixed to the mounting bracket; a guide rod, which is partially located inside the outer cylinder and slidably connected to the outer cylinder in the vertical direction, wherein the maximum height of the guide rod is less than or equal to the maximum height of the outer cylinder; and a float, which is connected to the upper end of the guide rod and can drive the guide rod to move with the change of water level.

[0013] In a specific embodiment of the water conservancy monitoring device for the above-mentioned water conservancy project, the water level measuring instrument further includes a counterweight located at the lower end of the outer cylinder and connected to the lower end of the guide rod via a rope passing through the lower end plate of the outer cylinder.

[0014] Compared with the prior art, the present invention has at least the following advantages: The water conservancy monitoring device for water conservancy projects provided by this utility model includes a water level measuring instrument, a flow velocity measuring instrument, a first comparator, a second comparator, and an alarm. The water level measuring instrument is used to measure the water level, the flow velocity measuring instrument is used to measure the water flow velocity, the first comparator is used to compare the measurement data of the water level measuring instrument with a preset water level, and the second comparator is used to compare the measurement data of the flow velocity measuring instrument with a preset flow velocity. The alarm can select whether to issue a warning message based on the output results of the first and second comparators. When the water flow velocity is higher than the preset flow velocity, the first comparator will output a high-level signal; when the water level is higher than the preset water level, the second comparator will output a high-level signal. If the alarm receives a high-level signal from either the first or second comparator, it indicates that there may be a risk of flooding. The alarm can output a warning message locally, saving information transmission waiting time and providing early warning information. Attached Figure Description

[0015] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which: Figure 1 This is a module diagram of the water conservancy monitoring device provided by this utility model; Figure 2 This is a schematic diagram of the flow velocity measuring instrument provided by this utility model; Figure 3 This is a schematic diagram of the water level measuring instrument provided by this utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Water level measuring instrument; 11. Flow guide; 12. Paddle measuring instrument; 2. Flow velocity measuring instrument; 21. Outer cylinder; 22. Guide rod; 23. First float; 24. Counterweight; 3. First comparator; 4. Second comparator; 5. Alarm. Detailed Implementation

[0017] Preferred embodiments of the present disclosure will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present disclosure and are not intended to limit the scope of protection of the present disclosure.

[0018] It should be noted that in the description of this disclosure, the terms "upper," "lower," "left," "right," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] Furthermore, it should be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installation," "setup," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0020] To address the problem that existing water conservancy monitoring devices are unable to issue timely early warnings in response to small-scale floods, this utility model provides a water conservancy monitoring device for water conservancy projects, such as... Figure 1 As shown, the monitoring device includes a water level meter 1, a flow velocity meter 2, and a circuit board. The water level meter 1 measures the water level at the installation location of the monitoring device, and the flow velocity meter 2 measures the water flow velocity at the installation location. The circuit board can make a preliminary judgment locally based on the measurement data from the water level meter 1 and the flow velocity meter 2 to determine whether there is a risk of flooding, and promptly report the early warning information, reducing the information transmission waiting time and enabling earlier warning notifications.

[0021] The circuit board includes a first comparator 3, a second comparator 4, and an alarm 5. The first comparator 3 compares the measurement data of the water level measuring instrument 1 with a preset water level. In this specific example, when the measurement data of the water level measuring instrument 1 is higher than the preset water level, the first comparator 3 outputs a high-level signal; when the measurement data of the water level measuring instrument 1 is lower than or equal to the preset water level, the first comparator 3 outputs a low-level signal. The second comparator 4 compares the measurement data of the current velocity measuring instrument 2 with the preset water level. In this specific example, when the measurement data of the current velocity measuring instrument 2 is higher than the preset current velocity, the second comparator 4 outputs a high-level signal; when the measurement data of the current velocity measuring instrument 2 is lower than or equal to the preset current velocity, the second comparator 4 outputs a low-level signal. The alarm 5 selects whether to issue a warning message based on the output results of the first comparator 3 and the second comparator 4. Specifically, when either the first comparator 3 or the second comparator 4 outputs a high-level signal, the alarm 5 issues a warning message.

[0022] The preset water level can be the warning water level at the location of the water conservancy monitoring device, and the preset flow velocity can be the maximum flow velocity recorded at the location of the water conservancy monitoring device when no flood has occurred. When the river water level exceeds the preset water level, the river water is very likely to have exceeded the carrying capacity of the river channel, and there is a possibility of levee breach due to insufficient pressure on the dam. Conversely, if the water flow velocity exceeds the preset flow velocity, it indicates that the inflow of river water from upstream is large, which can easily cause a surge in the downstream water level.

[0023] The water monitoring device also includes a base, a battery, and photovoltaic modules. The base is set at the bottom of the riverbed, with its top exposed above the water. The flow velocity meter 2, the water level meter 1, the battery, and the photovoltaic modules are all mounted on the base. The battery powers the water level meter 1, the flow velocity meter, and electronic components (such as circuit boards), while the photovoltaic modules charge the battery. The flow velocity meter 2 and the water level meter 1 are both located in the water and can be mounted on the side of the base.

[0024] The flow velocity meter 2 can be of any type, as long as it can be used to measure the water flow velocity at the current location. The water level meter 1 can also be of any type, as long as it can be used to measure the water level height at the current location.

[0025] In the examples of this utility model, such as Figure 2 As shown, the flow rate measuring instrument 2 includes a plate-shaped flow guide 11 and a paddle-type flow meter 12. The first end of the flow guide 11 is triangular to guide the flow. The paddle-type flow meter 12 is installed at the second end of the flow guide 11, and its axis is parallel to the length direction of the flow guide 11. The signal line of the paddle flow meter can be led out to the circuit board through its own tube and the flow guide 11.

[0026] In the examples of this utility model, such as Figure 3 As shown, the water level measuring instrument 1 includes a mounting bracket, an outer cylinder 21, a guide rod 22, and a first floating component 23. The mounting bracket is fixed to the bottom of the riverbed. The outer cylinder 21 is vertically installed and fixed to the mounting bracket, submerged in water. A portion of the guide rod 22 is located inside the outer cylinder 21 and is slidably connected to the outer cylinder 21 in the vertical direction. The maximum height of the guide rod 22 is less than or equal to the maximum height of the outer cylinder 21. The first floating component 23 floats on the water surface and is connected to the upper end of the guide rod 22, moving the guide rod 22 as the water level changes. As the water level changes, the height of the first floating component 23 from the bottom of the riverbed also changes, thereby causing the guide rod 22 to move vertically relative to the outer cylinder 21, changing the length of the guide rod 22 inserted into the outer cylinder 21. This causes a change in the capacitance between the guide rod 22 and the outer cylinder 21, and the change in water level is proportional to the capacitance value. The current water level can be calculated by measuring the capacitance between the guide rod 22 and the outer cylinder 21. This water level monitoring device uses a mechanical structure to measure water levels, offering high reliability, long service life, and a relatively long maintenance cycle. It can be deployed at any location within the river channel. Furthermore, maintenance of the device only requires cleaning the guide rod 22 to ensure proper sliding between the guide rod 22 and the outer cylinder 21, making maintenance convenient.

[0027] A counterweight 24 can also be installed below the outer cylinder 21. The counterweight 24 is connected to the lower end of the guide rod 22 via a rope passing through the lower end plate of the outer cylinder 21. When the river water level drops, the counterweight 24 can pull the guide rod 22 downward via the rope to prevent the guide rod 22 from getting stuck. Of course, the weight of the counterweight 24 must be less than the buoyancy of the first float 23 to ensure that the first float 23 can always float on the water surface. It should be noted that as long as the upper end plate of the outer cylinder 21 is sealed, even if the lower end plate of the outer cylinder 21 is provided with holes for the rope to pass through, it will not affect the sealing of the outer cylinder 21, and river water will have difficulty entering the outer cylinder 21.

[0028] In summary, the working principle of the water conservancy monitoring device for water conservancy projects provided by this utility model is as follows: Water level meter 1 is used to measure the water level at the installation location of the monitoring device, and flow velocity meter 2 is used to measure the water flow velocity at the installation location of the monitoring device. When the measurement data of water level meter 1 is higher than the preset water level, the first comparator 3 outputs a high-level signal; when the measurement data of water level meter 1 is lower than or equal to the preset water level, the first comparator 3 outputs a low-level signal. When the measurement data of flow velocity meter 2 is higher than the preset flow velocity, the second comparator 4 outputs a high-level signal; when the measurement data of flow velocity meter 2 is lower than or equal to the preset flow velocity, the second comparator 4 outputs a low-level signal. When either the first comparator 3 or the second comparator 4 outputs a high-level signal, a preliminary judgment is made that there is a risk of flooding, and the early warning information is reported in a timely manner, reducing the information transmission waiting time and providing early warning information as soon as possible.

[0029] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A water conservancy monitoring device for water conservancy projects, characterized in that, include: Water level measuring instrument (1), used to measure water level; Flow velocity meter (2) is used to measure the flow velocity of water; The circuit board includes: a first comparator (3) for comparing the measurement data of the water level measuring instrument (1) with a preset water level; The second comparator (4) is used to compare the measurement data of the flow rate measuring instrument (2) with the preset flow rate; The alarm (5) selects whether to issue a warning message based on the output results of the first comparator (3) and the second comparator (4); When the water level measuring instrument (1) measures a water level higher than the preset water level, the first comparator (3) outputs a high-level signal; when the flow velocity measuring instrument (2) measures a flow velocity higher than the preset flow velocity, the second comparator (4) outputs a high-level signal; when one of the first comparator (3) and the second comparator (4) outputs a high-level signal, the alarm (5) issues a warning message; the preset flow velocity is the maximum flow velocity recorded at the location of the water conservancy monitoring device when no flood has occurred; The water conservancy monitoring device also includes a base, a storage battery and a photovoltaic module. The flow velocity meter (2), the water level meter (1), the storage battery and the photovoltaic module are all installed on the base. The storage battery supplies power to the water level meter (1), the flow velocity meter (2) and electronic components, and the photovoltaic module charges the storage battery.

2. The water conservancy monitoring device for water conservancy projects according to claim 1, characterized in that, The preset water level is the warning water level at the location of the water conservancy monitoring device.

3. The water conservancy monitoring device for water conservancy projects according to claim 1, characterized in that, The flow velocity measuring instrument (2) includes: A plate-shaped flow guide (11), the first end of which is triangular; A paddle measuring instrument (12) is installed at the second end of the guide (11), and its axis is parallel to the length direction of the guide (11).

4. The water conservancy monitoring device for water conservancy projects according to claim 1, characterized in that, The water level measuring instrument (1) includes: Mounting bracket; The outer cylinder (21) is vertically installed and fixed to the mounting bracket; The guide rod (22) is partially located inside the outer cylinder (21) and is slidably connected to the outer cylinder (21) in the vertical direction. The maximum height of the guide rod (22) is less than or equal to the maximum height of the outer cylinder (21). The float is connected to the upper end of the guide rod (22) and can move the guide rod (22) as the water level changes.

5. The water conservancy monitoring device for water conservancy projects according to claim 4, characterized in that, The water level measuring instrument (1) also includes a counterweight located at the lower end of the outer cylinder (21) and connected to the lower end of the guide rod (22) by a rope passing through the lower end plate of the outer cylinder (21).

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