Open type river channel multi-layer radar flow measuring device

Abstract

The invention relates to the technical field of open type river channel water flow velocity measurement, in particular to an open type river channel multi-layer radar flow measurement device. Comprising a plurality of depth speed measurement radars for measuring the speed of water flow at different depths; the plurality of depth velocity measurement radars comprise a first depth velocity measurement radar and a second depth velocity measurement radar; and the controller is configured to determine that the water level at least rises by a preset height when the first depth speed measuring radar detects the water flow speed and determine that the water level at least falls by the preset height when the second depth speed measuring radar detects that the water flow speed becomes zero. When a water level detection device is not needed, whether the water level rises or falls can be judged. And due to the multiple depth speed measurement radars, speed measurement can be carried out on water flows with different depths, and the comprehensiveness of speed measurement is improved. And because the detection distance of each speed measuring radar is fixed, the power is relatively stable, the fault probability of the speed measuring radar is relatively small, and the stability and accuracy of detection are further ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of water flow velocity measurement in open river channels, in particular to a multi-layer radar flow measurement device for open river channels. Background Art

[0002] River velocity measurement devices are used to measure the velocity of river water. They are crucial for understanding river hydrological characteristics, assessing flow energy, managing water resources, providing flood warnings, and monitoring the environment. Currently, river velocity measurement devices often use conventional methods like single-point velocimeters and buoys. These typically only capture a single velocity value, which doesn't reflect the rise and fall of water levels. Water level detection devices are also required, making the system complex and susceptible to damage when placed in water. Summary of the Invention

[0003] In view of the above problems, the present invention is proposed to provide an open river multi-layer radar flow measurement device that overcomes the above problems or at least partially solves the above problems, and can determine whether the water level rises or falls without setting up a water level detection device.

[0004] Specifically, the present invention provides an open river multi-layer radar flow measurement device, comprising:

[0005] Bracket;

[0006] A housing, wherein a plurality of detection ports are provided on the housing; each of the detection ports faces downward or obliquely downward;

[0007] A plurality of speed measuring radars are sequentially arranged in the shell along the horizontal direction; each of the speed measuring radars is arranged corresponding to one of the detection ports; the plurality of speed measuring radars include a plurality of depth speed measuring radars, each of which detects the water velocity at a preset depth corresponding to the depth speed measuring radar; and the preset depths corresponding to any two of the depth speed measuring radars are different; the plurality of depth speed measuring radars include a first depth speed measuring radar and a second depth speed measuring radar; the preset depth corresponding to the first depth speed measuring radar is a preset height above the water surface; the preset depth corresponding to the second depth speed measuring radar is above the water surface;

[0008] A controller is configured to determine that the water level rises by at least the preset height when the first depth velocity radar detects the water flow velocity, and to determine that the water level drops by at least the preset height when the water flow velocity detected by the second depth velocity radar becomes zero.

[0009] Optionally, the plurality of speed measuring radars include a plurality of planar speed measuring radars, each of the planar speed measuring radars detecting a water flow velocity at a preset width corresponding to the planar speed measuring radar on the water surface; and the preset widths corresponding to any two of the planar speed measuring radars are different;

[0010] The plurality of planar speed measuring radars include at least a first planar speed measuring radar and a second planar speed measuring radar, and the detection positions of the first planar speed measuring radar and the second planar speed measuring radar are on both sides of the detection position of the second depth speed measuring radar along the width direction of the river channel.

[0011] Optionally, the open river multi-layer radar flow measurement device further includes a lifting device; the lifting device is mounted on the bracket, and the housing is mounted on the lifting device so as to be lifted and lowered under the drive of the lifting device; and the controller is configured to:

[0012] After the first depth velocity radar detects the water flow velocity, the lifting device is controlled to drive the housing to rise, and the housing continues to rise to the preset height after the detected water flow velocity becomes zero, and the height of the water level rise is determined according to the lifting distance of the lifting device; and

[0013] After the water flow velocity detected by the second depth velocity measuring radar becomes zero, the lifting device is controlled to drive the shell to descend until the second depth velocity measuring radar detects the water flow velocity, and the height of the water level drop is determined according to the lifting distance of the lifting device.

[0014] Optionally, the open river multi-layer radar flow measurement device further includes a fan;

[0015] The housing is provided with an air inlet, and a heat dissipation channel is provided in the housing; the housing is also provided with a plurality of air outlets, each of the air outlets including a plurality of air outlets provided around one of the detection ports; the heat dissipation channel connects the air inlet and the air outlet, so that a protective air curtain is formed around the periphery of each detection port;

[0016] The fan is arranged in the housing to promote the airflow to enter the heat dissipation channel from the air inlet and flow out from the air outlet;

[0017] Each of the depth speed measuring radars, each of the planar speed measuring radars and the controller is connected to a heat dissipation fin, and the heat dissipation fin is arranged in the heat dissipation channel.

[0018] Optionally, the bracket is cylindrical, and the lifting device includes a screw and a lifting cylinder, the screw is vertically and rotatably arranged in the bracket; the lifting cylinder is telescopically arranged in the bracket, and the shell is installed at the upper end of the lifting cylinder; the bottom of the lifting cylinder is provided with a connecting block that cooperates with the screw, and when the screw rotates, it drives the connecting block to rise, and then drives the lifting cylinder to rise.

[0019] Optionally, the open river multi-layer radar flow measurement device further includes a mounting shell;

[0020] The outer surface of the bracket is provided with a first sliding groove extending in the up-down direction, and the inner side of the bracket is correspondingly provided with a first convex strip; the outer surface of the lifting cylinder is provided with a second sliding groove cooperating with the first convex strip;

[0021] The mounting shell includes a vertically arranged bottom wall and two vertically arranged side walls connected to the bottom wall, the bottom wall is provided with a second protrusion configured to cooperate with the first slide groove and the second slide groove; a rotating shaft is provided between the upper ends of the two side walls; the upper end or the lower end of the mounting shell is mounted on the upper end of the lifting cylinder;

[0022] The shell is arranged horizontally, and a strip hole extending in the vertical direction is provided at one end of the shell. The rotating shaft passes through the strip hole and is located at the upper end of the strip hole. One end of the shell contacts and abuts against the bottom wall to make the shell in a horizontal state; the rotating shaft, the strip hole and the bottom wall are configured to allow the shell to rotate and enter between the two side walls after the shell rises relative to the rotating shaft.

[0023] Optionally, a tension spring is provided between the housing and the rotating shaft to urge the rotating shaft to be located at the upper end of the strip-shaped hole.

[0024] Optionally, a photovoltaic panel is installed on the top of the bracket, and a battery is connected inside the bracket. The battery is connected to the photovoltaic panel and is used for power supply.

[0025] Optionally, the open river multi-layer radar flow measurement device further includes:

[0026] a water receiving device, the water receiving device being arranged on the housing;

[0027] a heat dissipation water pipe, one end of which is connected to the water receiving device, and the heat dissipation water pipe passes through the heat dissipation fins;

[0028] A driving pump is connected to the outlet of the heat dissipation water pipe, and the outlet of the driving pump is communicated with the water receiving device.

[0029] Optionally, the open river multi-layer radar flow measurement device further includes a rain detection device configured to detect whether it is raining and the amount of rain; the water receiving device includes:

[0030] A water receiving trough is provided on the upper side of the housing; a first filter is provided at the upper opening of the water receiving trough; a drain outlet is provided on the side wall of the water receiving trough, the drain outlet is higher than the bottom wall of the water receiving trough; a sewage outlet is provided on the bottom wall of the water receiving trough, and a sewage valve is provided at the sewage outlet; a second filter is provided at the drain outlet;

[0031] a first water storage tank, the first water storage tank being disposed in the housing and being in communication with the drain outlet;

[0032] a second water storage tank, the second water storage tank being connected to the first water storage tank, and a connecting valve being provided on the pipeline between the first water storage tank and the second water storage tank;

[0033] One end of the heat dissipation water pipe is connected to the second water storage tank; the outlet of the driving pump is connected to three drainage pipes, each of which is connected to the water receiving tank, the first water storage tank and the second water storage tank respectively, and each drainage pipe is provided with a drainage valve

[0034] The open river multi-layer radar flow measurement device of the present invention has multiple depth velocity measurement radars, so it is possible to determine whether the water level rises or falls without setting up a water level detection device.

[0035] Furthermore, the open-channel multi-layer radar flow measurement device of the present invention can also measure water velocity at different depths, improving the comprehensiveness of velocity measurement. It can also determine water level fluctuations based on the detection results of the depth-based velocity radars, allowing personnel to timely monitor water level and flow conditions via a remote terminal. Comprehensive detection facilitates accurate assessment of the river channel based on water flow velocity. Because each velocity radar has a fixed detection distance, its power is relatively stable, minimizing the probability of failure, further ensuring detection stability and accuracy.

[0036] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention.

[0037] Figures

[0038] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0039] Figure 1 1 is a schematic structural diagram of an open river channel multi-layer radar flow measurement device according to one embodiment of the present invention;

[0040] Figure 2 yes Figure 1 A schematic structural diagram of the open river channel multi-layer radar flow measurement device from another perspective;

[0041] Figure 3 yes Figure 1 A schematic partial structural diagram of an open-channel multi-layer radar flow measurement device is shown;

[0042] Figure 4 yes Figure 3 A schematic structural diagram of the housing and the mounting shell in another mating state in the structure shown;

[0043] Figure 5 yes Figure 1 Another schematic partial structural diagram of the open-channel multi-layer radar flow measurement device shown, wherein the housing and multiple speed measurement radars are shown;

[0044] Figure 6 yes Figure 1 Another schematic partial structural diagram of the open channel multi-layer radar flow measurement device shown, wherein the housing and multiple speed measurement radars are shown;

[0045] Figure 7 yes Figure 6 a schematic diagram of the internal arrangement of the structure shown;

[0046] Figure 8 yes Figure 7 a schematic diagram of another perspective of the structure shown;

[0047] Figure 9 yes Figure 8 Schematic enlarged view of point A in the middle;

[0048] Figure 10 yes Figure 1 The schematic diagram of the multi-layer radar flow measurement device in an open river channel is shown;

[0049] Figure 11 yes Figure 1 Schematic structural diagram of the installation shell in the open river multi-layer radar flow measurement device shown;

[0050] Figure 12 yes Figure 3 A schematic diagram of the cooperation between the housing and the mounting shell in the structure shown;

[0051] Figure 13 yes Figure 4 A schematic diagram of the cooperation between the housing and the mounting shell in the structure shown;

[0052] Figure 14 yes Figure 1 The schematic detection principle diagram of the open river channel multi-layer radar flow measurement device is shown.

[0053] In the attached figure:

[0054] 11. Bracket; 12. Shell; 14. First slide groove; 15. First ridge; 16. Strip hole; 18. Cover plate; 20. Speed ​​radar; 21. Depth speed radar; 22. Plane speed radar; 30. Lifting device; 31. Screw; 32. Lifting cylinder; 33. Second slide groove; 41. Fan; 42. Air inlet; 43. Heat dissipation channel; 44. Air outlet; 45. Heat dissipation fin; 50. Mounting shell; 51. Bottom wall; 52. Side wall; 53. Second ridge; 54. Rotating shaft; 61. Heat dissipation water pipe; 62. Drive pump; 63. Water receiving trough; 64. First water tank; 65. Second water tank; 71. Connecting valve; 72. Drain valve; 73. Cleaning valve; 74. Inlet valve; 75. Water stop valve; 78. Sprinkler. DETAILED DESCRIPTION

[0055] Refer to the following Figures 1 to 14 To describe the open river multi-layer radar flow measurement device of an embodiment of the present invention. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0056] Unless otherwise expressly defined or limited, terms such as "disposed," "installed," "connected," "connected," "fixed," and "coupled" should be broadly interpreted. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two elements or interaction between two elements, unless otherwise expressly defined. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0057] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact via another feature between them. That is, in the description of this embodiment, the first feature being "above," "above," and "above" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below," "below," or "below" the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0058] In the description of the present embodiment, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the exemplary expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples.

[0059] Figure 1 FIG. 1 is a schematic structural diagram of an open river multi-layer radar flow measurement device according to an embodiment of the present invention. Figure 1 As shown, and reference Figures 2 to 14 The present invention provides an open-channel multi-layer radar flow measurement device that can be connected to a remote terminal via a wireless network. The open-channel multi-layer radar flow measurement device includes a bracket 11, a housing 12, a plurality of speed measurement radars 20, and a controller.

[0060] The shell 12 is provided with a plurality of detection ports. Each detection port can be directed downward or obliquely downward according to the installation position of the shell 12. When the shell 12 is horizontally arranged on the river bank, the detection port can be directed obliquely downward to detect the water flow velocity of the river. When the shell 12 is on the upper side of the water flow, the detection port can be directed vertically downward. A plurality of speed measuring radars 20 are arranged in sequence in the shell 12 along the horizontal direction, and each speed measuring radar 20 is arranged corresponding to a detection port. Such an arrangement can make the shell 12 in a closed state, protecting the speed measuring radar 20 inside. By setting a plurality of speed measuring radars 20, the water flow velocity at multiple positions can be detected. For example, the plurality of speed measuring radars 20 include a plurality of depth speed measuring radars 21, and each depth speed measuring radar 21 detects the water flow velocity at a preset depth corresponding to the depth speed measuring radar 21, such as Figure 14At positions B, C, D, E, and F, etc. Any two depth-speed radars 21 correspond to different preset depths. This allows multiple depth-speed radars 21 to measure water velocity at different depths, improving the comprehensiveness of velocity measurement. The number of depth-speed radars 21 is at least three, and preferably five or eight.

[0061] The plurality of depth speed measuring radars 21 include a first depth speed measuring radar and a second depth speed measuring radar. The preset depth corresponding to the first depth speed measuring radar is a preset height above the water surface, such as Figure 14 The preset depth of the second depth speed radar is on the water surface, such as Figure 14 At position C in the middle. The controller is configured to determine that the water level has risen by at least a preset height when the first depth velocity radar detects the water flow velocity, and to determine that the water level has dropped by at least a preset height when the water flow velocity detected by the second depth velocity radar becomes zero. By setting the first depth velocity radar, the rise of the water level can be accurately judged according to the judgment signal of the first depth velocity radar, and similarly, by setting the second depth velocity radar, the drop of the water level can be accurately judged. Other depth velocity radars 21 can also judge the rise and fall of the water level. Obviously, the embodiment of the present invention can also judge the rise and fall of the water level based on the detection results of the depth velocity radar 21, so that the staff can timely understand the water level and water flow conditions through the remote terminal, conduct comprehensive detection, and thus facilitate accurate judgment of the river channel based on the water flow velocity. Moreover, since the detection distance of each velocity radar 20 is certain, the power is relatively stable, further ensuring the stability and accuracy of the detection.

[0062] In some embodiments of the present invention, the plurality of depth speed measuring radars 21 only include the first depth speed measuring radar and the second depth speed measuring radar. The preset depth corresponding to the first depth speed measuring radar is a preset height above the water surface, such as Figure 14 The preset depth of the second depth speed radar is on the water surface, such as Figure 14 At position C in the middle. In other words, the two depth velocity radars 21 are used to detect only the water velocity at the water surface and determine whether the water level rises or falls. The system is simple and can determine whether the water level rises or falls without the need for a water level detection device.

[0063] In some embodiments of the present invention, the plurality of speed measuring radars 20 include a plurality of plane speed measuring radars 22, each plane speed measuring radar 22 detecting the water flow velocity at a preset width corresponding to the plane speed measuring radar 22 on the water surface, such as Figure 14At various positions such as G and H. The preset widths corresponding to any two plane speed measuring radars 22 are different. That is to say, by setting up multiple plane speed measuring radars 22, the water flow velocity at different positions on the width of the river surface can be detected, thereby obtaining comprehensive water flow information. Furthermore, the multiple plane speed measuring radars 22 include at least a first plane speed measuring radar and a second plane speed measuring radar. The detection positions of the first plane speed measuring radar and the second plane speed measuring radar are on both sides of the position detected by the second depth speed measuring radar along the width direction of the river channel. The second depth speed measuring radar is usually aimed at the middle of the width direction of the river surface. The number of plane speed measuring radars 22 is at least two. Combined with the second depth speed measuring radar, according to the comparison of the size of these three water flow velocity values, it can be determined whether the middle of the horizontal plane width direction has shifted after the water level rises or falls. The structure is simple and easy to use.

[0064] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the open-channel multi-layer radar flow measurement device further includes a lifting device 30. The lifting device 30 is mounted on the bracket 11, and the housing 12 is mounted on the lifting device 30 so as to be raised and lowered by the lifting device 30. The controller is configured to: control the lifting device 30 to drive the housing 12 upward after the first depth velocity radar detects the water flow velocity, and continue to rise to a preset height after the detected water flow velocity reaches zero, and determine the height of the water level rise based on the lifting distance of the lifting device 30; and control the lifting device 30 to drive the housing 12 downward after the water flow velocity detected by the second depth velocity radar reaches zero, until the second depth velocity radar detects the water flow velocity, and determine the height of the water level drop based on the lifting distance of the lifting device 30.

[0065] When the first depth velocity radar detects water velocity, it indicates that the water level has risen to a preset height. The results obtained at the current detection position no longer meet the detection requirements. Furthermore, if the water level rises further, further detection will be impossible. By providing a lifting device 30, multiple velocity radars 20 can be adaptively raised and lowered as the water level rises and falls. This ensures that the multiple velocity radars 20 function properly without being affected by water level fluctuations. Furthermore, accurate water level fluctuations can be determined, ensuring comprehensive detection and reflecting the distribution of velocity data across the vertical cross-section of the water body and across the width of the water surface.

[0066] In some embodiments of the present invention, Figures 5 to 10As shown, the open river multi-layer radar flow measurement device also includes a fan 41. An air inlet 42 is provided on the shell 12, and a heat dissipation channel 43 is provided in the shell 12. A plurality of air outlets are also provided on the shell 12, and each air outlet includes a plurality of air outlets 44 provided on the periphery of a detection port. The heat dissipation channel 43 connects the air inlet 42 and the air outlet 44 to form a protective wind curtain around each detection port. The fan 41 is provided in the shell 12 to promote air flow from the air inlet 42 into the heat dissipation channel 43 and out of the air outlet 44. Each depth speed radar 21, each plane speed radar 22 and the controller are connected to a heat dissipation fin 45, and the heat dissipation fin 45 is provided in the heat dissipation channel 43.

[0067] In order to ensure that each speed radar 20, controller and other heat-generating components work efficiently, the embodiment of the present invention is provided with a fan 41 and a heat dissipation duct, which can take away the heat generated by the equipment. In particular, the air outlet 44 is specially provided, so that a wind curtain is formed on the side of each speed radar 20. The wind curtain can prevent dust and the like from flowing to the speed measuring head of the speed radar 20, protect the cleanliness of the speed radar 20, and reduce the cleaning work of maintenance personnel. If the device is in the wild, the long-term operation of the device can be guaranteed. By providing the air outlet 44, not only can the heat dissipation of the heat-generating components be achieved, but the speed radar 20 can also be protected, which significantly improves the service life of the device and ensures the accuracy of the detection results. The speed radar 20 will not have inaccurate measurements due to dirt.

[0068] In some embodiments of the present invention, the bracket 11 is cylindrical. The lifting device 30 includes a screw 31 and a lifting cylinder 32. The screw 31 is vertically and rotatably disposed within the bracket 11. The lifting cylinder 32 is telescopically disposed within the bracket 11, and the housing 12 is mounted on the upper end of the lifting cylinder 32. The bottom of the lifting cylinder 32 is provided with a connecting block that cooperates with the screw 31. When the screw 31 rotates, the connecting block is driven upward, thereby driving the lifting cylinder 32 upward. The lifting device 30 may also include a motor that drives the screw 31 to rotate. When the screw 31 rotates, the connecting block and the lifting cylinder 32 rise or fall.

[0069] In some embodiments of the present invention, Figure 2 、 Figure 11 、 Figure 12 、 Figure 13As shown, the open-channel multi-layer radar flow measurement device also includes a mounting housing 50. A first chute 14 extending in the vertical direction is provided on the outer surface of the bracket 11, and a first ridge 15 is correspondingly provided on the inner side of the bracket 11. A second chute 33 that mates with the first ridge 15 is provided on the outer surface of the lifting cylinder 32. The mounting housing 50 includes a vertically disposed bottom wall 51 and two vertically disposed side walls 52 connected to the bottom wall 51. The bottom wall is provided with a second ridge 53 that mates with the first chute 14 and the second chute 33. A rotating shaft 54 ​​is disposed between the upper ends of the two side walls. The upper or lower end of the mounting housing 50 is mounted to the upper end of the lifting cylinder 32. The housing 12 is horizontally disposed. A vertically extending strip hole 16 is provided at one end of the housing 12. The rotating shaft 54 ​​passes through the strip hole 16 and is located at the upper end of the strip hole 16. One end of the housing 12 contacts the bottom wall, maintaining the housing 12 in a horizontal position. The rotation shaft 54 ​​, the bar-shaped hole 16 and the bottom wall are configured to allow the housing 12 to rotate and enter between the two side walls after the housing 12 rises relative to the rotation shaft 54 ​​.

[0070] During transportation, the housing 12 can be rotated and inserted between the two side walls 52, that is, into the mounting shell 50 and protected by the mounting shell 50. At the same time, the upper end of the mounting shell 50 is mounted on the upper end of the lifting cylinder 32, and the lifting cylinder 32 is retracted into the bracket 11, which can significantly shorten the height of the device and facilitate compact placement of the device, which is beneficial for the transportation of the multi-layer radar flow measurement device in open rivers. At the same time, it can protect the speed measuring radar 20 in the housing 12 from damage during transportation.

[0071] During installation, the housing 12 is pulled outward and rotated. After the housing 12 reaches a horizontal position, the housing 12 is pressed downward. Under the action of the bottom wall of the mounting shell 50, the housing 12 does not rotate relative to the rotating shaft 54, so that the housing 12 remains in a horizontal state. The structure is simple, the operation is convenient, and the installation is firm.

[0072] During installation, the lower end of the mounting shell 50 is mounted on the upper end of the lifting cylinder 32. This arrangement increases the height of the housing 12, meaning that the bracket 11 does not need to be positioned particularly high. The height of the speed radar 20 is determined by the bracket 11, the lifting cylinder 32, and the mounting shell 50. During manufacturing, multiple components can be processed separately, resulting in high efficiency.

[0073] Furthermore, a tension spring is provided between the housing 12 and the rotating shaft 54 ​​to urge the rotating shaft 54 ​​to the upper end of the strip-shaped hole 16. The provision of the tension spring ensures that the housing 12 does not rotate relative to the protective shell when in a horizontal position, maintaining the horizontal position. When the housing 12 is in the mounting shell 50, the housing 12 is urged to remain in the mounting shell 50 and does not easily escape from the mounting shell 50. To further increase the area of ​​the stop surface on the housing 12 that prevents the housing 12 from rotating, a protective plate that can be raised and lowered is installed at one end of the housing 12. A tension spring is provided between the protective plate and the housing 12 to urge the protective plate downward. The protective plate extends from the lower side of the housing 12 and contacts the bottom wall.

[0074] In some embodiments of the present invention, a photovoltaic panel is mounted on the top of the bracket 11, and a battery is connected to the bracket 11. The battery is connected to the photovoltaic panel and is used to supply power. Photovoltaic power supply saves energy and is particularly suitable for outdoor areas.

[0075] In some embodiments of the present invention, Figures 5 to 10 As shown, in order to further improve the heat dissipation efficiency and make full use of natural resources, the open river multi-layer radar flow measurement device also includes a water receiving device, a heat dissipation water pipe 61 and a drive pump 62. The water receiving device is arranged on the shell 12. One end of the heat dissipation water pipe 61 is connected to the water receiving device, and the heat dissipation water pipe 61 passes through the heat dissipation fins 45. The drive pump 62 is connected to the outlet of the heat dissipation water pipe 61, and the outlet of the drive pump 62 is connected to the water receiving device. The water receiving device can receive rainwater and then use cold water to dissipate heat, with high heat dissipation efficiency. The drive pump 62 and the fan 41 can work alternately or simultaneously to ensure heat dissipation efficiency, and also allow the drive pump 62 and the fan 41 to rest after a reasonable working time, significantly improving the service life of the equipment.

[0076] In some embodiments of the present invention, the open river multi-layer radar flow measurement device further includes a rain detection device configured to detect whether it is raining and the amount of rain. The water receiving device includes a water receiving trough 63, a first water storage tank 64, and a second water storage tank 65.

[0077] The water receiving trough 63 is disposed on the upper side of the housing 12. A first filter is provided at the upper opening of the water receiving trough 63. A drain outlet is provided on the side wall of the water receiving trough 63, which is higher than the bottom wall of the water receiving trough. A sewage outlet is provided on the bottom wall of the water receiving trough 63, and a sewage valve is provided at the sewage outlet. A second filter is provided at the sewage outlet. The water receiving trough 63 is primarily used to receive rainwater and perform a double-layer filtration on the rainwater through the first and second filter nets. The height of the drain outlet is higher than the bottom wall of the water receiving trough 63, which provides a certain amount of storage space for larger and heavier impurities and prevents clogging of the drain outlet. The sewage outlet is mainly used for cleaning the water receiving trough 63. The high-pressure water or high-pressure air generated by the driving pump 62 is used to flush the water receiving trough 63. After the sewage valve is opened, the sewage is discharged through the sewage outlet. The water receiving trough 63 can be cleaned regularly. Preferably, the water receiving trough 63 is cleaned during rain, especially heavy rain, to ensure sufficient water is stored in the water receiving device and to prevent the water receiving device from running out of water due to cleaning. Specifically, a rain detection device is used to detect and determine whether the water receiving trough 63 needs to be cleaned when the rainfall reaches a preset value. The rainfall here refers to the rainfall rate, that is, the amount of rain per unit time.

[0078] A first water tank 64 is disposed within the housing 12, and a second water tank 65 is disposed within the housing 12. The first water tank 64 is connected to the drain outlet. The second water tank 65 is connected to the first water tank 64, and a connecting valve 71 is provided on the pipeline between the first and second water tanks 64, 65. Both the first and second water tanks 64, 65 store water, ensuring that the stored water is not exposed to the elements, ensuring water cleanliness and preventing evaporation. The water in both the first and second water tanks 64, 65 is used for heat dissipation. When higher temperature water is required, only the water in the second water tank 65 can be used for heat dissipation circulation, and the connecting valve 71 can be closed. The volume of the second water tank 65 is smaller than that of the first water tank 64. The first and second water tanks 64, 65, and the multiple speed radars 20 are arranged sequentially along the length of the housing 12. The first water tank 64 is adjacent to the bracket 11. With this arrangement, when the first water tank 64 stores water, the first water tank 64 is relatively heavy and close to the bracket 11, making the entire device very stable.

[0079] One end of the heat dissipation water pipe 61 is connected to the second water tank 65. The outlet of the drive pump 62 is connected to three drain pipes, each connected to the water receiving tank 63, the first water tank 64, and the second water tank 65. Each drain pipe is equipped with a drain valve 72. The outlet of the drive pump 62 is connected to the three drain pipes, which, through corresponding drain valves 72, are used to clean the water receiving tank 63 when connected to the water receiving tank 63; to dissipate heat from the heat dissipating fins 45 when connected to the first water tank 64; and to dissipate heat from the heat dissipating fins 45 when connected to the second water tank 65. A higher water temperature facilitates cleaning.

[0080] In some embodiments of the present invention, the open river multi-layer radar flow measurement device also includes a cover 18, which is tilted and installed on the shell 12 to form a structure similar to an eaves, thereby protecting the speed measurement radar 20 from rain, etc.

[0081] In some embodiments of the present invention, the cover plate 18 is rotatably mounted on the housing 12 to cover the multiple detection ports. The open-channel multi-layer radar flow measurement device also includes multiple nozzles 78, which are disposed on the cover plate. When the cover plate covers the multiple detection ports, each nozzle 78 is aligned with a corresponding speed radar 20 to spray water toward the corresponding speed radar 20. The outlet of the drive pump 62 is also connected to the multiple nozzles 78 via a cleaning pipe, which is provided with a cleaning valve 73. Embodiments of the present invention can also clean the speed radar 20, and the water sprayed by the nozzles 78 can wash away stains on the speed radar 20.

[0082] In particular, the higher water temperature in the second water tank 65 can be utilized for cleaning. The speed radar 20 can be cleaned periodically or according to the degree of contamination on the speed radar 20. When cleaning the speed radar 20 is necessary, the connecting valve 71 is closed, and the outlet of the drive pump 62 is connected to the second water tank 65. The water in the heat dissipation water pipe 61 passes through the heat dissipating fins 45, dissipating heat there and simultaneously raising the water temperature in the second water tank 65. Once the water temperature reaches a preset value, the outlet of the drive pump 62 flows through the cleaning pipe to the nozzle 78 and is sprayed onto the speed radar 20. Multiple preset values ​​can be set, meaning that the speed radar 20 can be cleaned multiple times at different water temperatures to improve cleaning effectiveness.

[0083] When cleaning the speed radar 20 is necessary, the control device first controls the cover 18 to close the multiple detection ports, then controls the cleaning valve to open, and operates the drive pump 62 for a first preset time to spray water onto the speed radar 20. It then controls the fan 41 to operate for a second preset time, allowing the hot air flow to dry the speed radar 20 under the shielding effect of the cover 18. By allowing the hot air flow to dry the speed radar 20 under the reflection of the cover, this prevents cleaning water from lingering on the speed radar 20 and affecting detection results. It also prevents cleaning water from remaining on the speed radar 20 for a long time and forming stains.

[0084] To ensure that the airflow from the air outlet 44 effectively dries the speed radar 20, a protective cover is installed on the inside of the cover. Each nozzle 78 is located inside a protective cover, and the air outlet 44 corresponding to each speed radar 20 is also located inside the protective cover. The protective cover has an air outlet notch on the top and a drainage hole on the bottom. The protective cover ensures that airflow passes through the speed radar 20 more effectively. Furthermore, the cover can be opened and closed by a motor.

[0085] In some preferred embodiments of the present invention, the drive pump 62 is a dual-purpose gas-liquid pump connected to an air pipe equipped with an air inlet valve 74. Air is drawn in by the drive pump 62 and ejected through a nozzle 78, thereby drying the speed radar. Preferably, the air pipe is connected to the end of the heat dissipation water pipe 61, which is equipped with a water stop valve 75. The inlet of the air pipe is connected to the heat dissipation channel 43 to receive hot air. By controlling the air inlet valve 74 and the water stop valve 75, the drive pump 62 can be switched between water intake and air intake. This simple structure and minimal components make it particularly suitable for outdoor use.

[0086] In some embodiments of the present invention, the cover plate 18 is fixed and the nozzle 78 is aimed at the corresponding speed measuring radar, which reduces the number of components that drive the cover plate 18 to rotate, has a simple structure, simple control, and is less prone to malfunction.

[0087] At this point, those skilled in the art will recognize that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications consistent with the principles of the present invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

1. An open river multi-layer radar flow measurement device, comprising a bracket, characterized in that: Also includes: A housing, wherein a plurality of detection ports are provided on the housing; Each of the detection ports faces downward or obliquely downward; A plurality of speed measuring radars are sequentially arranged in the shell along the horizontal direction; each of the speed measuring radars is arranged corresponding to one of the detection ports; the plurality of speed measuring radars include a plurality of depth speed measuring radars, each of which detects the water flow velocity at a preset depth corresponding to the depth speed measuring radar; and the preset depths corresponding to any two of the depth speed measuring radars are different; the plurality of depth speed measuring radars include a first depth speed measuring radar and a second depth speed measuring radar; the preset depth corresponding to the first depth speed measuring radar is a preset height above the water surface; the preset depth corresponding to the second depth speed measuring radar is above the water surface; A controller is configured to determine that the water level rises by at least the preset height when the first depth velocity radar detects the water flow velocity, and to determine that the water level drops by at least the preset height when the water flow velocity detected by the second depth velocity radar becomes zero.

2. The open river multi-layer radar flow measurement device according to claim 1, characterized in that: The plurality of speed measuring radars include a plurality of plane speed measuring radars, each of which detects the water flow velocity at a preset width corresponding to the plane speed measuring radar on the water surface; and the preset widths corresponding to any two of the plane speed measuring radars are different; The plurality of planar speed measuring radars include at least a first planar speed measuring radar and a second planar speed measuring radar, and the detection positions of the first planar speed measuring radar and the second planar speed measuring radar are located on both sides of the detection position of the second depth speed measuring radar along the width direction of the river channel.

3. The open river multi-layer radar flow measurement device according to claim 2, characterized in that: It also includes a lifting device; the lifting device is installed on the bracket, and the shell is installed on the lifting device to be lifted and lowered under the drive of the lifting device; and the controller is configured as follows: After the first depth velocity radar detects the water flow velocity, the lifting device is controlled to drive the shell to rise, and the shell continues to rise to the preset height after the detected water flow velocity becomes zero, and the height of the water level rise is determined according to the lifting distance of the lifting device; as well as After the water flow velocity detected by the second depth velocity measuring radar becomes zero, the lifting device is controlled to drive the shell to descend until the second depth velocity measuring radar detects the water flow velocity, and the height of the water level drop is determined according to the lifting distance of the lifting device.

4. The open river multi-layer radar flow measurement device according to claim 3 is characterized in that: Also includes fans; The shell is provided with an air inlet, and a heat dissipation channel is provided in the shell; the shell is also provided with a plurality of air outlets, each of which includes a plurality of air outlets arranged around one of the detection ports; the heat dissipation channel connects the air inlet and the air outlet, so that a protective wind curtain is formed around each of the detection ports; The fan is arranged in the housing to promote airflow to enter the heat dissipation channel from the air inlet and flow out from the air outlet; Each of the deep speed measuring radars, each of the planar speed measuring radars and the controller are connected with heat dissipation fins, and the heat dissipation fins are arranged in the heat dissipation channel.

5. The open river multi-layer radar flow measurement device according to claim 4, characterized in that: The bracket is cylindrical, and the lifting device includes a screw and a lifting cylinder. The screw is vertically and rotatably arranged in the bracket; the lifting cylinder is telescopically arranged in the bracket, and the shell is installed at the upper end of the lifting cylinder; a connecting block cooperating with the screw is provided at the bottom of the lifting cylinder, and when the screw rotates, the connecting block is driven to rise, thereby driving the lifting cylinder to rise.

6. The open river multi-layer radar flow measurement device according to claim 5, characterized in that: Also includes a mounting shell; The outer surface of the bracket is provided with a first slide groove extending in the up-down direction, and the inner side of the bracket is correspondingly provided with a first convex strip; the outer surface of the lifting cylinder is provided with a second slide groove cooperating with the first convex strip; The mounting shell comprises a vertically arranged bottom wall and two vertically arranged side walls connected to the bottom wall, the bottom wall is provided with a second convex strip arranged to cooperate with the first slide groove and the second slide groove; a rotating shaft is provided between the upper ends of the two side walls; the upper end or the lower end of the mounting shell is installed on the upper end of the lifting cylinder; The shell is arranged horizontally, and one end of the shell is provided with a strip hole extending in the vertical direction, the rotating shaft passes through the strip hole and is located at the upper end of the strip hole, and one end of the shell is in contact with and abuts against the bottom wall to make the shell in a horizontal state; the rotating shaft, the strip hole and the bottom wall are configured to allow the shell to rotate and enter between the two side walls after the shell rises relative to the rotating shaft.

7. The open river multi-layer radar flow measurement device according to claim 6, characterized in that: A tension spring is arranged between the housing and the rotating shaft to urge the rotating shaft to be located at the upper end of the strip hole.

8. The open river multi-layer radar flow measurement device according to claim 6, characterized in that: A photovoltaic panel is installed on the top of the bracket, a battery is connected inside the bracket, the battery is connected to the photovoltaic panel, and the battery is used for power supply.

9. The open river multi-layer radar flow measurement device according to claim 6, characterized in that: Also includes: A water receiving device, wherein the water receiving device is arranged on the housing; A heat dissipation water pipe, one end of which is connected to the water receiving device, and the heat dissipation water pipe passes through the heat dissipation fins; A driving pump is connected to the outlet of the heat dissipation water pipe, and the outlet of the driving pump is communicated with the water receiving device.

10. The open river multi-layer radar flow measurement device according to claim 9, characterized in that: The water receiving device comprises: A water receiving trough, the water receiving trough being arranged on the upper side of the housing; a first filter screen being arranged at the upper opening of the water receiving trough, a drain port being arranged on the side wall of the water receiving trough, the drain port being higher than the bottom wall of the water receiving trough; a second filter screen being arranged at the drain port; A first water storage tank, the first water storage tank is disposed in the housing, and the first water storage tank is communicated with the drain port; A second water tank, the second water tank is connected to the first water tank, and a connecting valve is provided on the pipeline between the first water tank and the second water tank; the second water tank is arranged in the shell; one end of the heat dissipation water pipe is connected to the second water tank; the outlet of the driving pump is connected to a drain pipe, the drain pipe is connected to the first water tank, and a drain valve is provided on the drain pipe.

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