River flow direction and flow monitoring device and monitoring method thereof

Abstract

The invention relates to the technical field of riverway water level monitoring, in particular to a riverway flow direction and flow monitoring device and a monitoring method thereof.The monitoring device comprises a connecting part, a flow direction monitoring mechanism and a flow measuring mechanism, one end of the connecting part is installed on a dam of a riverway, and the flow direction monitoring mechanism and the flow measuring mechanism are both installed at the other end of the connecting part; the flow measuring mechanism is located under the flow direction monitoring mechanism, the flow direction monitoring mechanism is in sliding connection with the connecting part, the flow measuring mechanism is connected with the connecting part, the flow direction monitoring mechanism comprises a guiding part, a supporting part and two suspension balls, the guiding part is in sliding connection with the other end of the connecting part, the supporting part is installed on the guiding part, and the two suspension balls are arranged on the supporting part. The two suspension balls are located on the two sides of the supporting part correspondingly, and the suspension balls are slidably connected with the guiding part. The flow direction of the river channel is monitored through the flow direction monitoring mechanism, the flow of the flow measurement section of the river channel is monitored through the flow measurement mechanism, and the monitoring efficiency of the flow direction and the flow of the river channel can be improved.

Description

Technical Field

[0001] This invention relates to the field of river water level monitoring technology, and in particular to a river flow direction and flow rate monitoring device and its monitoring method. Background Technology

[0002] Monitoring the direction and flow of rivers is a core task in water resource management, ecological protection, flood control and disaster reduction, and engineering planning. Its purpose covers multiple levels, including scientific understanding, wind direction control, resource utilization, and ecological maintenance.

[0003] 1. Revealing the laws of water flow: By monitoring the direction and flow changes of the river channel, analyzing the water flow velocity, energy distribution and sediment transport capacity, providing basic data for disciplines such as hydrology and river dynamics;

[0004] 2. Flood risk assessment: By monitoring changes in river flow direction, the risk of river diversion or branching can be identified. Combined with analysis of river morphology, the flood overflow path can be provided as a basis for embankment design and flood diversion area planning.

[0005] 3. Water allocation and ecological water replenishment: By monitoring the flow direction of the river, it can be ensured that artificial drinking water projects (such as the South-to-North Water Diversion Project) are delivered according to the designed route, avoiding water leakage or deviation from the target area;

[0006] 4. Maintaining the ecological connectivity of river channels: By monitoring the impact of changes in river flow direction on fish migration and wetland water replenishment, the smooth flow of ecological corridors can be ensured;

[0007] Therefore, we urgently need a device and method for monitoring river flow direction and flow.

[0008] Currently, methods for monitoring the flow direction and flow of rivers include: manual boat measurement, bridge measurement, cableway measurement, and wading measurement. These methods require setting up multiple vertical lines on the flow measurement cross section and using flow meters on these vertical lines to monitor the flow direction and flow of the river. However, this method is not only time-consuming and laborious, but also inefficient. In addition, it can also affect the flow field and waterway. Summary of the Invention

[0009] In response to the shortcomings of the existing production technology, the applicant provides a river flow direction and flow monitoring device and method. By improving the river flow direction and flow monitoring method, the monitoring efficiency of river flow direction and flow is improved. At the same time, the monitoring does not disturb the flow field or affect the waterway.

[0010] The technical solution adopted in this invention is as follows:

[0011] A river flow direction and flow monitoring device includes: a connecting part, a flow direction monitoring mechanism, and a flow measurement mechanism. One end of the connecting part is installed on the embankment of the river. The flow direction monitoring mechanism and the flow measurement mechanism are both installed at the other end of the connecting part, with the flow measurement mechanism located directly below the flow direction monitoring mechanism. The flow direction monitoring mechanism is slidably connected to the connecting part, and the flow measurement mechanism is connected to the connecting part. The flow direction monitoring mechanism is used to monitor the flow direction of the river, and the flow measurement mechanism is used to monitor the flow velocity at the required monitoring section of the river. The flow direction monitoring mechanism includes: a guide part, a support part, and two suspended balls. The guide part is slidably connected to the other end of the connecting part. The support part is installed on the guide part, and the two suspended balls are located on both sides of the support part, and the suspended balls are slidably connected to the guide part.

[0012] Therefore, by using a flow direction monitoring device to monitor the river flow direction and a flow measurement device to monitor the flow at the river flow measurement section, compared with the existing manual monitoring methods, this method has a simple structure, is easy to operate, and can improve the monitoring efficiency of river flow direction and flow. At the same time, it will not disturb the flow field or affect the navigation channel during monitoring. In addition, the method of judging the river flow direction by the movement direction of two suspended balls is more intuitive and does not require a complex structure, which can improve the monitoring efficiency of river flow direction. Meanwhile, the movement direction of the suspended balls is restricted by the guide part to improve the monitoring accuracy of river flow direction.

[0013] As a further improvement to the above technical solution, the flow direction monitoring mechanism further includes a top plate and two cameras. The top plate is installed on the side of the support portion away from the guide portion, and the two cameras are located on both sides of the support portion and connected to the top plate. The cameras are used to acquire real-time images of the movement of the suspended spheres. Thus, the movement images of the two suspended spheres can be acquired in real time through the two cameras, making it easier for monitoring personnel to intuitively determine the flow direction of the river.

[0014] As a further improvement to the above technical solution, the flow direction monitoring mechanism further includes an audible and visual alarm, which is installed on the side of the top plate away from the support. Thus, the audible and visual alarm can issue an alert to warn passing vessels to take evasive action.

[0015] As a further improvement to the above technical solution: the flow measurement mechanism includes multiple flow meters, which are evenly distributed along the depth direction of the river channel. Each flow meter is used to monitor the water flow velocity at different depths of the required flow measurement section in real time. Therefore, by monitoring the water flow velocity at different depths of the flow measurement section using multiple flow meters, the average water flow velocity of the flow measurement section can be obtained, thus improving the accuracy of river flow monitoring.

[0016] As a further improvement to the above technical solution, the flow measurement mechanism further includes a distance sensor, which is installed on the side of the guide portion away from the support portion. The distance sensor is used to monitor in real time the distance between the surface of the desired flow measurement section and the riverbed. Therefore, by monitoring the distance between the surface of the desired flow measurement section and the riverbed in real time using the distance sensor, the area of ​​the desired flow measurement section can be obtained in real time, thus improving the accuracy of river flow monitoring. Furthermore, since the distance sensor is installed on the side of the guide portion away from the support portion, it can change position according to the changes in river flow depth, always remaining at the river surface. This results in more accurate monitoring distance, more accurate acquisition of the area of ​​the desired flow measurement section, and thus more accurate calculation of the river flow.

[0017] As a further improvement to the above technical solution, the flow direction monitoring mechanism further includes a suspended block, which is installed on the side of the guide portion away from the support portion. Thus, the suspended block ensures that the entire flow direction monitoring mechanism is always located on the surface of the river channel, dynamically changing with the river's water level. This ensures that the position of the suspended ball relative to the support portion changes with the river's flow direction, and that the distance sensor remains always on the river channel surface.

[0018] As a further improvement to the above technical solution: two of each of the connecting parts, the flow direction monitoring mechanism, and the flow measurement mechanism are provided, with the two connecting parts, the two flow direction monitoring mechanisms, and the two flow measurement mechanisms located on both sides of the river channel. Therefore, by providing flow direction monitoring mechanisms and flow measurement mechanisms on both sides of the river channel, the data from both sides can be comprehensively analyzed and measured during the process of determining the river flow direction and measuring the flow rate at the river channel cross-section, thereby further improving the accuracy of river flow direction and flow rate monitoring.

[0019] A monitoring method for a river flow direction and flow rate monitoring device includes the following steps:

[0020] S1. Observe the movement direction of the two suspended balls to determine the flow direction of the river.

[0021] S2. Obtain the average flow velocity V of the required monitoring section of the river channel through the flow measurement mechanism, and obtain the area S of the required monitoring section of the river channel, so as to calculate the flow rate Q of the monitoring section.

[0022] Wherein: the formula for calculating the flow rate Q at the measuring section is:

[0023] Q = V * S.

[0024] As a further improvement to the above technical solution: In S1, the motion images of the two suspended balls moving in different directions are transmitted to the terminal device through a camera, and the flow direction of the river is determined by the motion images displayed on the terminal device.

[0025] As a further improvement to the above technical solution, step S2 includes the following steps:

[0026] S2-1. Multiple flow meters acquire the water flow velocities at different depths of the flow measurement section as V1, V2, ..., Vn, respectively, to calculate the average water flow velocity V of the flow measurement section.

[0027] S2-2. Obtain the depth H of the flow measurement section through the distance sensor, obtain the curve expression L of the flow measurement section where the river embankment is located, and calculate the area S of the flow measurement section.

[0028] S2-3. Obtain the average flow velocity V of the flow measurement section in S1, and obtain the area S of the flow measurement section in S2, so as to calculate the flow rate Q of the monitored flow measurement section.

[0029] Wherein: the formula for calculating the average flow velocity V at the flow measurement section is:

[0030]

[0031] n represents the number of flow meters.

[0032] The beneficial effects of this invention are as follows:

[0033] By using a flow direction monitoring device to monitor the river's flow direction and a flow measurement device to monitor the flow rate at the river's cross-section, this method offers advantages over existing manual monitoring methods. It is simpler in structure, easier to operate, and improves the efficiency of monitoring river flow direction and flow rate. Furthermore, it does not disturb the flow field or affect the navigation channel during monitoring. Additionally, the method of determining the river flow direction by observing the movement of two suspended spheres is more intuitive and requires no complex structures, thus improving the efficiency of river flow direction monitoring. At the same time, the guide mechanism restricts the movement of the suspended spheres, thereby improving the accuracy of river flow direction monitoring.

[0034] The present invention also includes the following advantages:

[0035] 1. This invention uses two cameras to acquire real-time images of the movement of two suspended spheres, which makes it easier for monitoring personnel to judge the direction of river flow more intuitively.

[0036] 2. This invention uses multiple flow meters to monitor the water flow velocity at different depths of the flow measurement section, thereby obtaining the average water flow velocity of the flow measurement section. When monitoring river flow, this invention can improve the accuracy of river flow monitoring.

[0037] 3. This invention uses a distance sensor to monitor the distance between the surface of the required flow measurement section and the riverbed in real time, thereby obtaining the area of ​​the required flow measurement section in real time. This improves the accuracy of river flow monitoring. In addition, since the distance sensor is installed on the side of the guide unit away from the support unit, the distance sensor can change according to the changes in the river flow depth and always remain at the surface of the river. This makes the monitoring distance more accurate, the area of ​​the required flow measurement section obtained more accurate, and the calculated river flow more accurate. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the structure of the river flow direction and flow monitoring device of the present invention;

[0039] Figure 2 This is a front view of the river flow direction and flow monitoring device of the present invention;

[0040] Figure 3 This is a schematic diagram of the flow direction monitoring mechanism of the present invention;

[0041] Figure 4 This is a control block diagram of the river flow direction and flow monitoring device of the present invention;

[0042] Figure 5 A top view of the installation of the river flow direction and flow monitoring device of the present invention;

[0043] Figure 6 A cross-sectional view of the installation of the river flow direction and flow monitoring device of the present invention;

[0044] Figure 7 This is a diagram showing the positional relationship between the two suspended spheres as the river flows from side A to side B according to the present invention.

[0045] Figure 8 This is a diagram showing the positional relationship between the two suspended spheres as the river flows from side B to side A according to the present invention;

[0046] Figure 9 This is a flowchart of the monitoring method of the river flow direction and flow monitoring device of the present invention;

[0047] Figure 10 This is a flowchart of S2 of the present invention;

[0048] Figure 11 A diagram illustrating the effect of establishing a coordinate system for the flow measurement section of this invention.

[0049] Wherein: 1. Connecting part; 101. First connecting rod; 102. Second connecting rod;

[0050] 2. Flow to monitoring agencies;

[0051] 201. Guiding section; 202. Support section; 203. Suspended ball; 204. Top plate; 205. Camera; 206. Audible and visual alarm; 207. Suspended block; 208. Terminal equipment; 209. Protective section;

[0052] 3. Flow measurement mechanism;

[0053] 301. Flow meter; 302. Distance sensor;

[0054] 4. Controller. Detailed Implementation

[0055] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0056] like Figures 1 to 8 As shown, a river flow direction and flow monitoring device includes: a connecting part 1, a flow direction monitoring mechanism 2, and a flow measurement mechanism 3. One end of the connecting part 1 is installed on the embankment of the river. The flow direction monitoring mechanism 2 and the flow measurement mechanism 3 are both installed at the other end of the connecting part 1, and the flow measurement mechanism 3 is located directly below the flow direction monitoring mechanism 2. The flow direction monitoring mechanism 2 is slidably connected to the connecting part 1, and the flow measurement mechanism 3 is connected to the connecting part 1. The flow direction monitoring mechanism 2 is used to monitor the flow direction of the river, and the flow measurement mechanism 3 is used to monitor the flow velocity at the required monitoring section of the river. The flow direction monitoring mechanism 2 includes: a guide part 201, a support part 202, and two suspended balls 203. The guide part 201 is slidably connected to the other end of the connecting part 1. The support part 202 is installed on the guide part 201, and the two suspended balls 203 are located on both sides of the support part 202, and the suspended balls 203 are slidably connected to the guide part 201. Therefore, the flow direction of the river is monitored by the flow direction monitoring mechanism 2, and the flow rate at the cross-section of the river is monitored by the flow measurement mechanism 3. Compared with the existing manual monitoring methods, this method has a simple structure, is easy to operate, and can improve the monitoring efficiency of the river flow direction and flow rate. At the same time, it will not disturb the flow field or affect the navigation channel during monitoring. In addition, the method of judging the river flow direction by the movement direction of the two suspended balls 203 is more intuitive and does not require a complex structure, which can improve the monitoring efficiency of the river flow direction. Meanwhile, the movement direction of the suspended balls 203 is restricted by the guide part 201 to improve the monitoring accuracy of the river flow direction.

[0057] In other words, by restricting the direction of movement of the suspended ball 203 through the guide part 201, the suspended ball 203 can only move along the direction of the river (i.e., the direction of movement of the suspended ball 203 can only be parallel to the direction of the river). In this way, the movement of the suspended ball 203 will not be disturbed (i.e., it will not move in other directions due to forces in other directions (e.g., the influence of ship movement on the movement of the suspended ball 203), thus improving the monitoring accuracy of the river flow direction.

[0058] Specifically, the connecting part 1 includes: two first connecting rods 101 and two second connecting rods 102 (the second connecting rod 102 on the side closer to the embankment is referred to as second connecting rod A 102, and the second connecting rod 102 on the side farther from the embankment is referred to as second connecting rod B 102). The two first connecting rods 101 are arranged in parallel, and the two second connecting rods 102 are arranged in parallel. The first connecting rods 101 and the second connecting rods 102 are arranged perpendicularly. One end of the first connecting rod 101 is connected to the river embankment, and one end of the second connecting rod 102 is connected to the bottom of the river. The flow direction monitoring mechanism 2 is slidably connected to second connecting rod B 102, and the flow measurement mechanism 3 is connected to second connecting rod B 102.

[0059] In this embodiment, the flow direction monitoring mechanism 2 further includes: a top plate 204, two cameras 205, an audible and visual alarm 206, and a suspension block 207. The top plate 204 is installed on the side of the support 202 away from the guide 201. The two cameras 205 are located on both sides of the support 202 and are connected to the top plate 204. The cameras 205 are used to acquire the motion image of the suspended ball 203 in real time. The audible and visual alarm 206 is installed on the side of the top plate 204 away from the support 202, and the suspension block 207 is installed on the side of the guide 201 away from the support 202. Therefore, the two cameras 205 can acquire real-time motion images of the two suspended balls 203, which makes it easier for monitoring personnel to judge the direction of the river more intuitively; the sound and light alarm can issue an alarm to remind passing ships to pay attention and avoid it; the suspension block 207 can ensure that the entire flow direction monitoring mechanism 2 is always located on the surface of the river and can follow the dynamic changes in the water level of the river. In this way, it can ensure that the position of the suspended ball 203 relative to the support part 202 can change with the change of the river flow direction, and the distance sensor 302 is always located on the surface of the river.

[0060] Specifically, a protective part 209 is also provided on the outside of the guide part 201. The protective part 209 is connected to the guide part 201 by a support rod. A suspension block 207 is also provided on the side of the protective part 209 away from the support part 202. In this way, the protective part 209 can prevent suspended objects (such as weeds, dead leaves, etc.) on the river from entering the area of ​​the guide part 201 and interfering with the movement of the suspension ball 203. It will also interfere with the image captured by the camera 205 and affect the final judgment of the river flow direction.

[0061] It should be noted that:

[0062] I. The two suspended spheres 203 are denoted as suspended sphere A and suspended sphere B along the path from side A to side B, as follows: Figure 7As shown, if suspended ball A 203 abuts against support part 202 and there is a certain gap between suspended ball B 203 and support part 202, then the river flow direction is from side A to side B. Figure 8 As shown, if there is a certain gap between the suspended ball A 203 and the support part 202 and the suspended ball B 203 abuts against the support part 202, then the flow direction of the river is from side B to side A.

[0063] II. Figure 4 As shown, the entire monitoring device also includes: a controller 4, a camera 205, an audible and visual alarm 206, a terminal device 208, a flow meter 301, and a distance sensor 302, all of which are connected to the controller 4. The images captured by the camera 205, the flow data monitored by the flow meter 301, and the distance data monitored by the distance sensor 302 can all be transmitted to the terminal device 208 through the controller 4 and displayed through the terminal device 208. The controller 4 can control the audible and visual alarm to issue a warning.

[0064] In this embodiment, the flow measurement mechanism 3 includes: multiple flow meters 301 and a distance sensor 302. The multiple flow meters 301 are evenly distributed along the depth direction of the river channel. The multiple flow meters 301 are used to monitor the water flow velocity at different depths of the required flow measurement section in real time. The distance sensor 302 is installed on the side of the guide 201 away from the support 202. The distance sensor 302 is used to monitor the distance between the surface of the required flow measurement section and the riverbed in real time. Therefore, by monitoring the water flow velocity at different depths of the flow measurement section using multiple flow meters 301, the average water flow velocity of the flow measurement section can be obtained, which improves the accuracy of river flow monitoring. By monitoring the distance between the surface of the required flow measurement section and the riverbed in real time using the distance sensor 302, the area of ​​the required flow measurement section can be obtained in real time, thus improving the accuracy of river flow monitoring. In addition, since the distance sensor 302 is installed on the side of the guide 201 away from the support 202, the distance sensor 302 can change according to the change of river water depth, always remaining at the surface of the river. Thus, the monitoring distance is more accurate, the area of ​​the required flow measurement section is obtained more accurately, and the calculated river flow is also more accurate.

[0065] In this embodiment, two of each are provided: the connecting part 1, the flow direction monitoring mechanism 2, and the flow measurement mechanism 3. The two connecting parts 1, the flow direction monitoring mechanism 2, and the flow measurement mechanism 3 are located on opposite sides of the river channel. Therefore, by providing the flow direction monitoring mechanism 2 and the flow measurement mechanism 3 on both sides of the river channel, the data from both sides can be comprehensively analyzed and measured during the process of determining the river flow direction and measuring the flow rate at the river channel cross-section, thereby further improving the accuracy of river flow direction and flow rate monitoring.

[0066] The process of monitoring river flow direction and flow rate in this invention is as follows: First, the flow direction of the river is determined based on the position of the two suspended balls 203 relative to the support 202; finally, the average value of the water flow velocity monitored by multiple flow meters 301 is calculated, and the area of ​​the river flow measurement section is calculated based on the distance measured by the distance sensor 302. The flow rate of the river flow measurement section is calculated based on the average value of the water flow velocity of the flow measurement section and the area of ​​the flow measurement section.

[0067] like Figures 9 to 11 As shown, a monitoring method for a river flow direction and flow monitoring device includes the following steps:

[0068] S1. Observe the movement direction of the two suspended balls 203 to determine the flow direction of the river.

[0069] S2. Obtain the average flow velocity V of the required monitoring section of the river channel through the flow measurement mechanism 3, and obtain the area S of the required monitoring section of the river channel, so as to calculate the flow rate Q of the monitoring section.

[0070] Wherein: the formula for calculating the flow rate Q at the measuring section is:

[0071] Q = V * S.

[0072] It should be noted that the monitoring of river flow direction and river flow rate are not sequential but conducted simultaneously.

[0073] In this embodiment, in S1, the motion images of the two suspended balls 203 moving in different directions are transmitted to the terminal device 208 via the camera 205, and the flow direction of the river is determined by the motion images displayed on the terminal device 208.

[0074] In this embodiment, S2 includes the following steps:

[0075] S2-1. Multiple flow meters 301 acquire the water flow velocities at different depths of the flow measurement section as V1, V2, ..., Vn, in order to calculate the average water flow velocity V of the flow measurement section.

[0076] S2-2. Obtain the depth H of the flow measurement section through the distance sensor 302, obtain the curve expression L of the flow measurement section where the river embankment is located, and calculate the area S of the flow measurement section.

[0077] S2-3. Obtain the average flow velocity V of the flow measurement section in S1, and obtain the area S of the flow measurement section in S2, so as to calculate the flow rate Q of the monitored flow measurement section.

[0078] Wherein: the formula for calculating the average flow velocity V at the flow measurement section is:

[0079]

[0080] n represents the number of flow meters 301. Specifically, for example... Figure 11 As shown, with the depth of the river channel as the X-axis, the surface of the flow measurement section as the Y-axis, and the centerline of the flow measurement section as the origin, the curve expression for the flow measurement section where the embankment is located on one side of the river channel is L1(x), and the curve expression for the flow measurement section where the embankment is located on the other side of the river channel is L2(x). The area of ​​the flow measurement section where the river channel is located...

[0081] In summary, this invention uses the flow direction monitoring mechanism 2 to monitor the flow direction of the river and the flow measurement mechanism 3 to monitor the flow rate at the river section. Compared with existing manual monitoring methods, this method has a simple structure, is easy to operate, and can improve the monitoring efficiency of river flow direction and flow rate. At the same time, it does not disturb the flow field or affect the navigation channel during monitoring. In addition, the method of judging the river flow direction by the movement direction of the two suspended balls 203 is more intuitive and does not require a complex structure, which can improve the monitoring efficiency of river flow direction. Meanwhile, the guide part 201 restricts the movement direction of the suspended balls 203 to improve the monitoring accuracy of river flow direction.

[0082] The above description is an explanation of the present invention and not a limitation thereof. The scope of the present invention is defined by the claims. Within the scope of protection of the present invention, any form of modification may be made.

Claims

1. A device for monitoring river flow direction and flow rate, characterized in that, include: A connecting part (1), one end of which is installed on the embankment of the river channel; A flow direction monitoring mechanism (2) and a flow measurement mechanism (3) are provided. Both the flow direction monitoring mechanism (2) and the flow measurement mechanism (3) are installed at the other end of the connecting part (1), and the flow measurement mechanism (3) is located directly below the flow direction monitoring mechanism (2). The flow direction monitoring mechanism (2) is slidably connected to the connecting part (1), and the flow measurement mechanism (3) is connected to the connecting part (1). The flow direction monitoring mechanism (2) is used to monitor the flow direction of the river, and the flow measurement mechanism (3) is used to monitor the flow velocity at the required monitoring section of the river. The flow direction monitoring mechanism (2) includes: The device includes a guide part (201), a support part (202), and two suspended balls (203). The guide part (201) is slidably connected to the other end of the connecting part (1). The support part (202) is mounted on the guide part (201). The two suspended balls (203) are located on both sides of the support part (202) and are slidably connected to the guide part (201).

2. The river flow direction and flow monitoring device as described in claim 1, characterized in that: The flow direction monitoring device (2) also includes: The top plate (204) and two cameras (205) are installed on the side of the support (202) away from the guide (201). The two cameras (205) are located on both sides of the support (202) and connected to the top plate (204). The cameras (205) are used to acquire motion images of the suspended ball (203) in real time.

3. The river flow direction and flow monitoring device as described in claim 2, characterized in that: The flow direction monitoring device (2) also includes: A sound and light alarm (206) is installed on the side of the top plate (204) away from the support (202).

4. The river flow direction and flow monitoring device as described in claim 1, characterized in that: The flow measurement mechanism (3) includes: Multiple flow meters (301) are distributed at equal intervals along the depth direction of the river channel. The multiple flow meters (301) are used to monitor the water flow velocity at different depths of the required flow measurement section in real time.

5. The river flow direction and flow monitoring device as described in claim 1, characterized in that: The flow measurement mechanism (3) also includes: A distance sensor (302) is installed on the side of the guide (201) away from the support (202). The distance sensor (302) is used to monitor in real time the distance between the surface of the required flow measurement section and the riverbed.

6. The river flow direction and flow monitoring device as described in claim 1, characterized in that: The flow direction monitoring device (2) also includes: A suspension block (207) is installed on the side of the guide portion (201) away from the support portion (202).

7. The river flow direction and flow monitoring device as described in claim 1, characterized in that: Two of each of the connecting parts (1), the flow direction monitoring mechanism (2), and the flow measurement mechanism (3) are provided, with the two connecting parts (1), the two flow direction monitoring mechanisms (2), and the two flow measurement mechanisms (3) located on both sides of the river channel.

8. A monitoring method for the river flow direction and flow monitoring device as described in claims 1-7, characterized in that: Includes the following steps: S1. Observe the movement direction of the two suspended balls (203) to determine the flow direction of the river by the movement direction of the two suspended balls (203); S2. Obtain the average flow velocity V of the required monitoring section of the river channel through the flow measurement mechanism (3), and obtain the area S of the required monitoring section of the river channel, so as to calculate the flow rate Q of the monitoring section. Wherein: the formula for calculating the flow rate Q at the measuring section is: Q = V * S.

9. The monitoring method of the river flow direction and flow monitoring device as described in claim 8, characterized in that: In S1, motion images of the two suspended balls (203) moving in different directions are transmitted to a terminal device (208) via a camera (205), and the direction of the river flow is determined by the motion images displayed on the terminal device (208).

10. The monitoring method of the river flow direction and flow monitoring device as described in claim 8, characterized in that: S2 includes the following steps: S2-1. Multiple flow meters (301) acquire the water flow velocities at different depths of the flow measurement section as V1, V2, ..., Vn, in order to calculate the average water flow velocity V of the flow measurement section. S2-2. Obtain the depth H of the flow measurement section through the distance sensor (302), obtain the curve expression of the flow measurement section where the river embankment is located as L, and calculate the area S of the flow measurement section. S2-3. Obtain the average flow velocity V of the flow measurement section in S1, and obtain the area S of the flow measurement section in S2, so as to calculate the flow rate Q of the monitored flow measurement section. Wherein: the formula for calculating the average flow velocity V at the flow measurement section is: n represents the number of the flow meters (301).

Images