An open channel radar flow monitoring device

Abstract

The application belongs to the technical field of hydraulic engineering safety monitoring, and specifically discloses an open channel radar flow monitoring device, which comprises a rotating support structure, a bottom support rod, an adjustable support arm structure, a traction structure and a radar sensor; the rotating support structure is rotationally connected with the bottom support rod, and the rotating support structure rotates around the bottom support rod in the circumferential direction; one end of the adjustable support arm structure is connected with the rotating support structure, and the other end is provided with the radar sensor; the adjustable support arm structure is used for changing the distance between the radar sensor and the rotating support structure; one end of the traction structure is connected with the rotating support structure and located above the adjustable support arm structure; the other end of the traction structure is connected with the adjustable support arm structure and used for pulling the adjustable support arm structure. The monitoring device can make the radar sensor rotate in the circumferential direction, and can also change the monitoring radius and the monitoring angle of the radar sensor, so that the adaptability of the monitoring position and the monitoring angle can be adjusted.

Description

Technical Field

[0001] This invention belongs to the field of water conservancy project safety monitoring technology, and specifically discloses a radar flow monitoring device for open channels. Background Technology

[0002] Open channel radar flow monitoring equipment is a non-contact flow monitoring tool based on radar technology, widely used in water conservancy projects, agricultural irrigation, urban drainage, and other fields. It mainly consists of the following components:

[0003] Radar sensors, including radar level gauges and radar flow meters, typically integrate three functions (water level, flow velocity, and flow rate), measuring by emitting microwave signals and receiving reflected waves.

[0004] The data acquisition terminal processes sensor data, supports wireless transmission (such as 4G, NB-IoT, etc.), and can be connected to a cloud platform to achieve remote monitoring.

[0005] The power supply system mostly uses solar power, supplemented by batteries to ensure continuous operation and adapt to the field environment.

[0006] Auxiliary equipment includes pole supports, lightning protection devices, and cameras (optional for real-time on-site monitoring).

[0007] The aforementioned open channel radar flow monitoring equipment is installed on the bank of the open channel, in a complex and harsh environment. These factors prevent the radar sensor from being adjusted in terms of monitoring position and angle after installation with auxiliary equipment. Therefore, it can only monitor a single point of water flow, failing to achieve multi-point monitoring and accurate analysis of the entire water area. Furthermore, to ensure more accurate monitoring results, the support arms for the radar sensors are typically quite long. In adverse weather conditions, this can affect the balance of the entire device, potentially causing it to tip over, which is detrimental to long-term monitoring. Summary of the Invention

[0008] The purpose of this invention is to provide an open channel radar flow monitoring device to solve the technical problem that the monitoring position and monitoring angle are difficult to adjust in existing open channel radar flow monitoring devices.

[0009] This invention provides a radar flow monitoring device for open channels, comprising a rotating support structure, a bottom support rod, an adjustable support arm structure, a traction structure, and a radar sensor;

[0010] The rotating support structure is rotatably connected to the bottom support rod, and the rotating support structure rotates circumferentially around the bottom support rod;

[0011] One end of the adjustable support arm structure is connected to the rotating support structure, and the other end is provided with the radar sensor. The adjustable support arm structure is used to change the distance between the radar sensor and the rotating support structure.

[0012] One end of the traction structure is connected to the rotating support structure and is located above the adjustable support arm structure. The other end of the traction structure is connected to the adjustable support arm structure and is used to traction the adjustable support arm structure.

[0013] Preferably, the rotating support structure includes a rotating support rod, a top support rod, and a driving device;

[0014] The bottom end of the rotating support rod is rotatably connected to the top end of the bottom support rod, and the adjustable support arm structure is provided on the outer wall of the rotating support rod.

[0015] The bottom end of the top support rod is fixedly connected to the top end of the rotating support rod, and a guide post is provided on the rod body of the top support rod to guide the steel wire rope in the traction structure to extend out.

[0016] The driving device is disposed inside the rotating support rod and the top support rod, and is used to drive the rotating support rod and the top support rod to rotate synchronously around the bottom support rod.

[0017] Preferably, the driving device includes a servo motor, a drive rod, a synchronization component, and a locking component;

[0018] The servo motor is disposed inside the bottom support rod and is fixedly connected to the inner wall of the bottom support rod;

[0019] One end of the drive rod is connected to the drive shaft of the servo motor, and the rod body of the drive rod extends into the rotating support rod and the top support rod in sequence;

[0020] The synchronization component is disposed inside the rotating support rod and is engaged with the drive rod.

[0021] The bolting assembly is disposed inside the top support rod and is engaged with the drive rod.

[0022] Preferably, the synchronization component includes a synchronization ring and two first internal gear rings;

[0023] The synchronization ring has a synchronization groove, which cooperates with the protrusion provided on the inner wall of the rotating support rod;

[0024] Two first internal gear rings are sequentially arranged on the inner wall of the synchronizing ring along the axial direction of the synchronizing ring, and mesh with the first driving gear arranged on the driving rod.

[0025] Preferably, the bolting assembly includes a bolting plate, two support rings, and two second internal gear rings;

[0026] Two support rings are disposed at both ends of the bolt plate and are integrally connected to the bolt plate;

[0027] Two second internal gear rings are respectively disposed on the inner walls of the two support rings and mesh with the second drive gear disposed on the drive rod;

[0028] The bolt plate has multiple through slots along its longitudinal direction, the same number as the number of steel wire ropes, and the sidewalls of the through slots are provided with conical teeth.

[0029] Preferably, the bolting assembly further includes two sets of rolling elements, each set of rolling elements being disposed on the outer wall of a support ring;

[0030] Each set of rolling elements includes an outer support and multiple rollers;

[0031] The outer support is fixed to the outer wall of the support ring;

[0032] Multiple rollers are mounted on the outer support and roll within a track located on the inner wall of the top support rod.

[0033] Preferably, the traction structure includes an encoder and a number of winding devices equal to the number of wire ropes, each of the winding devices including a permanent magnet synchronous motor and a winding roller;

[0034] The permanent magnet synchronous motor is disposed on the outer wall of the top support rod and connected to the take-up roller disposed on the inner wall of the top support rod, for driving the take-up roller to rotate;

[0035] One end of the wire rope is fixed to the winding roller, and the other end is connected to the adjustable support arm structure.

[0036] The encoder is connected to the permanent magnet synchronous motor and the servo motor.

[0037] Preferably, the adjustable outrigger structure includes multiple outriggers, the same number as the number of wire ropes;

[0038] Multiple outriggers are connected in sequence, and the front end of each outrigger is connected to one end of a steel wire rope.

[0039] Preferably, it also includes a camera, a solar panel, and an electrical control box disposed on the outer wall of the bottom support rod.

[0040] Preferably, a pulley is provided inside the guide column.

[0041] The open channel radar flow monitoring device of the present invention has the following advantages compared with the prior art:

[0042] The open channel radar flow monitoring device of this invention utilizes a rotating support structure to allow the radar sensor to rotate circumferentially. Through the coordination of an adjustable support arm structure and a traction structure, the monitoring radius and angle of the radar sensor can be altered, achieving adaptive adjustment of the monitoring position and angle. This allows for the creation of a fan-shaped monitoring matrix network on the open channel surface, thereby obtaining more comprehensive water area information and enabling more accurate analysis of water flow conditions. Furthermore, the adjustable support arm structure of this invention can be retracted and folded in inclement weather, reducing damage and ensuring equipment safety. Attached Figure Description

[0043] Figure 1 This is a three-dimensional structural diagram of the open channel radar flow monitoring device according to an embodiment of the present invention.

[0044] Figure 2 This is a front view of the open channel radar flow monitoring device according to an embodiment of the present invention.

[0045] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0046] Figure 4 This is an exploded view of the structure of the open channel radar flow monitoring device according to an embodiment of the present invention, excluding the solar panel and the electrical control box.

[0047] Figure 5 This is a schematic diagram of the combination of the rotating support structure, adjustable support arm structure, traction structure and radar sensor in the open channel radar flow monitoring equipment of this embodiment of the invention.

[0048] Figure 6 This is a schematic diagram of the drive device in the open channel radar flow monitoring equipment according to an embodiment of the present invention.

[0049] Figure 7 This is a schematic diagram of the choke assembly in the open channel radar flow monitoring device according to an embodiment of the present invention.

[0050] Figure 8 This is a diagram showing the extended state of multiple sets of support arms in the open channel radar flow monitoring device according to an embodiment of the present invention.

[0051] Figure 9 This is a diagram showing the retraction of multiple sets of support arms in the open channel radar flow monitoring device according to an embodiment of the present invention.

[0052] Figure 10 This is a diagram showing the state of multiple support arms being housed in the open channel radar flow monitoring device according to an embodiment of the present invention.

[0053] In the diagram: 1. Bottom support rod; 2. Rotating support rod; 3. Top support rod; 31. Guide column; 32. Pulley; 33. Signal transmission antenna; 34. Track; 4. Support arm; 5. Steel wire rope; 6. Permanent magnet synchronous motor; 61. Take-up roller; 62. Encoder; 7. Stop plate; 71. Through groove; 72. Bevel gear; 73. Support ring; 74. Second internal gear ring; 75. Outer support; 76. Roller; 8. Synchronization ring; 81. Synchronization groove; 82. First internal gear ring; 9. Servo motor; 91. Drive rod; 92. First drive gear; 93. Second drive gear; 10. Radar sensor; 11. Camera; 12. Solar panel; 13. Electrical control box. Detailed Implementation

[0054] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the invention with unnecessary detail.

[0055] This invention provides an open channel radar flow monitoring device, such as... Figures 1 to 10 As shown, it includes a rotating support structure, a bottom support rod 1, an adjustable support arm structure, a traction structure, and a radar sensor 10.

[0056] The rotating support structure is rotatably connected to the bottom support rod 1, and the rotating support structure rotates circumferentially around the bottom support rod 1; one end of the adjustable support arm structure is connected to the rotating support structure, and the other end is equipped with a radar sensor 10. The adjustable support arm structure is used to change the distance between the radar sensor 10 and the rotating support structure; one end of the traction structure is connected to the rotating support structure and is located above the adjustable support arm structure, and the other end of the traction structure is connected to the adjustable support arm structure for traction of the adjustable support arm structure.

[0057] This invention utilizes a rotating support structure to achieve circumferential rotation of the radar sensor 10, thereby changing the circumferential position of the monitored water area. The adjustable arm structure and traction structure work together to adjust the monitoring radius and angle of the radar sensor 10, thus meeting the monitoring needs of different open channels. The combination of the rotating support structure, adjustable arm structure, and traction structure allows the radar sensor 10 to weave a fan-shaped monitoring matrix network on the surface of the open channel, thereby obtaining more comprehensive water area information and enabling more accurate analysis of water flow. Simultaneously, the adjustable arm structure can retract and fold in inclement weather, reducing damage and ensuring equipment safety.

[0058] The rotating support structure of this invention includes a rotating support rod 2, a top support rod 3, and a driving device. The bottom end of the rotating support rod 2 is rotatably connected to the top end of the bottom support rod 1, specifically via a bearing connection; an adjustable support arm structure is provided on the outer wall of the rotating support rod 2. The bottom end of the top support rod 3 is fixedly connected to the top end of the rotating support rod 2, specifically via a threaded connection, facilitating maintenance and disassembly; a guide post 31 is provided on the top support rod 3 to guide the steel wire rope 5 extending from the traction structure, and a signal transmission antenna 33 is provided on the top of the top support rod 3. The driving device is located inside the rotating support rod 2 and the top support rod 3, and is used to drive the rotating support rod 2 and the top support rod 3 to rotate synchronously around the bottom support rod 1.

[0059] In order to achieve a smoother winding of the wire rope 5, a pulley 32 is provided inside the guide post 31 in this embodiment of the invention.

[0060] The driving device of this invention includes a servo motor 9, a drive rod 91, a synchronization component, and a locking component. The servo motor 9 is disposed within the bottom support rod 1 and fixedly connected to the inner wall of the bottom support rod 1. One end of the drive rod 91 is connected to the drive shaft of the servo motor 9 via a coupling, and the rod body of the drive rod 91 extends sequentially into the rotating support rod 2 and the top support rod 3. The synchronization component is disposed within the rotating support rod 2 and meshes with the drive rod 91; the locking component is disposed within the top support rod 3 and meshes with the drive rod 91. This invention utilizes the servo motor 9 to drive the drive rod 91 to rotate, and the drive rod 91 drives the synchronization component and the locking component to rotate synchronously in a circumferential direction. Its structure is simple, easy to implement, and has good stability.

[0061] The aforementioned synchronization assembly includes a synchronization ring 8 and two first internal gear rings 82. The synchronization ring 8 is connected to the rotating support rod 2 via bearings. A synchronization groove 81 is formed on the synchronization ring 8, which engages with a protrusion on the inner wall of the rotating support rod 2. Thus, under the drive of the servo motor 9, the synchronization ring 8 and the rotating support rod 2 rotate synchronously. The two first internal gear rings 82 are sequentially arranged along the axial direction of the synchronization ring 8 on its inner wall and mesh with the first drive gear 92 on the drive rod 91, pushing the wire rope 5 to engage with the synchronization groove 81 to achieve stable rotation.

[0062] The aforementioned locking assembly includes a locking plate 7, two support rings 73, and two second internal gear rings 74. The two support rings 73 are located at both ends of the locking plate 7 and are integrally connected to it. The two second internal gear rings 74 are respectively located on the inner walls of the two support rings 73 and mesh with the second drive gear 93 on the drive rod 91. The locking plate 7 has multiple through slots 71 along its longitudinal direction, the same number as the steel wire rope 5, and the side walls of the through slots 71 are provided with conical teeth 72. The steel wire rope 5 passes through the through slots 71 and connects to the adjustable support arm structure. When the adjustable support arm structure is stationary, it can penetrate into the conical teeth 72, keeping the steel wire rope 5 taut and preventing slippage, thus ensuring the stability of the adjustable support arm structure.

[0063] Because the bolting assembly experiences resistance from the wire rope 5 during rotation, to prevent movement deviation between it and the top support rod 3, which could damage the bolting assembly, this embodiment of the invention further includes two sets of rolling elements. Each set of rolling elements is disposed on the outer wall of a support ring 73. Each set of rolling elements includes an outer support 75 and multiple rollers 76. The outer support 75 is fixed to the outer wall of the support ring 73. The multiple rollers 76 are disposed on the outer support 75 and roll within the track 34 disposed on the inner wall of the top support rod 3. This embodiment of the invention uses rolling elements to connect the bolting assembly and the top support rod 3, thus preventing equipment damage caused by movement deviation.

[0064] In this embodiment of the invention, the drive rod 91 synchronously drives the bolt plate 7 and the synchronous ring 8 to rotate. The bolt plate 7 and the synchronous ring 8 push the steel wire rope 5, which in turn drives the rotating support rod 2 and the top support rod 3 to rotate, so that the radar sensor 10 can rotate circumferentially, change the monitoring point, and thus, in conjunction with the change of the monitoring radius, realize multi-water area and multi-point monitoring.

[0065] The traction structure of this embodiment includes an encoder 62 and a number of winding devices equal to the number of steel wire ropes 5. Each winding device includes a permanent magnet synchronous motor 6 and a winding roller 61. The permanent magnet synchronous motor 6 is mounted on the outer wall of the top support rod 3 and connected to the winding roller 61 mounted on the inner wall of the top support rod 3, driving the winding roller 61 to rotate. One end of the steel wire rope 5 is fixed to the winding roller 61, and the other end is connected to the adjustable support arm structure. The encoder 62 is connected to the permanent magnet synchronous motor 6 and the servo motor 9. The encoder 62 can record the winding length to adjust the combined length and shape of the adjustable support arm structure to meet monitoring requirements. This embodiment of the invention utilizes the winding roller 61 to traction the steel wire rope 5, thereby controlling the extension and retraction of the adjustable support arm structure, and thus adjusting the monitoring position and monitoring angle of the radar sensor 10. Simultaneously, through the closed-loop control of the encoder 62 and the servo motor 9, precise positioning and repeatability control of the monitoring points are achieved, improving data consistency and reliability.

[0066] The adjustable support arm structure in this embodiment of the invention includes multiple sets of support arms 4, the same number as the steel wire ropes 5. The multiple sets of support arms 4 are sequentially and movably connected, with the front end of each set of support arms 4 connected to one end of a steel wire rope 5. In this embodiment of the invention, the number of steel wire ropes 5 is at least three, and correspondingly, the number of support arms 4 is at least three sets. The multiple sets of support arms 4 are rotatably connected by square ring buckles, allowing for greater rotational freedom among them. To increase rotational stability, the multiple sets of support arms 4 in this embodiment of the invention can also be connected by meshing gears, and the interfaces are sealed with corrugated hoses to improve service life under harsh weather conditions.

[0067] The adjustable support arm structure of this invention forms a telescopic and foldable structure with the help of steel wire rope 5. Multiple sets of support arms 4 can be adjusted to three states as needed: extended, retracted, and retracted. This changes the monitoring radius and monitoring angle of the radar sensor 10. When needed, the radar sensor 10 can be retracted, thereby reducing the extension length of the entire adjustable support arm structure in severe weather, reducing damage in severe weather, and protecting the equipment.

[0068] To achieve non-contact monitoring of water level, flow velocity, and flow rate, and to support remote data transmission and power supply, the open channel radar flow monitoring device of this embodiment also includes a camera 11, a solar panel 12, and an electrical control box 13 installed on the outer wall of the bottom support rod 1. The electrical control box 13 is connected to the camera 11, radar sensor 10, solar panel 12, servo motor 9, permanent magnet synchronous motor 6, and encoder 62.

[0069] The combination of the support arm 4, wire rope 5, and permanent magnet synchronous motor 6 of the present invention can change the monitoring radius of the radar sensor 10 as needed, meet the monitoring requirements of different open channels, form a monitoring matrix, and can be retracted and folded in severe weather to reduce damage and ensure the safety of the equipment.

[0070] The combination of the stop plate 7, the synchronization ring 8, and the servo motor 9 in this invention enables the radar sensor 10 to rotate circumferentially, thereby changing the circumferential position of the monitored water area. At the same time, it can weave a fan-shaped monitoring matrix network on the surface of the open channel in accordance with the change of the monitoring radius, thereby obtaining more comprehensive water area information and enabling more accurate analysis of water flow conditions.

[0071] The bolt plate 7 of the present invention is provided with a through groove 71, which can ensure stability in a static state and prevent the wire rope 5 from slipping due to damage to the top support rod 3. At the same time, during the rotation process, the wire rope 5 can be stably embedded in the conical teeth 72 on the side wall of the through groove 71 and stably engaged to ensure the stability of the combined shape during the rotation process.

[0072] This invention achieves precise positioning and repeatability control of monitoring points through closed-loop control of encoder 62 and servo motor 9, thereby improving data consistency and reliability.

[0073] The invention features a modular design, facilitating installation, maintenance, and expansion. It adapts to open channel environments of varying widths and depths, demonstrating excellent engineering applicability and promotional value.

[0074] The above descriptions are merely a few embodiments of the present invention and are not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any modifications or alterations made by those skilled in the art without departing from the scope of the technical solution of the present invention using the disclosed technical content are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. A radar flow monitoring device for open channels, characterized in that, It includes a rotating support structure, a bottom support rod, an adjustable support arm structure, a traction structure, and a radar sensor; The rotating support structure is rotatably connected to the bottom support rod, and the rotating support structure rotates circumferentially around the bottom support rod; One end of the adjustable support arm structure is connected to the rotating support structure, and the other end is provided with the radar sensor. The adjustable support arm structure is used to change the distance between the radar sensor and the rotating support structure. One end of the traction structure is connected to the rotating support structure and is located above the adjustable arm structure; the other end of the traction structure is connected to the adjustable arm structure and is used to traction the adjustable arm structure. The rotating support structure includes a rotating support rod, a top support rod, and a driving device; The bottom end of the rotating support rod is rotatably connected to the top end of the bottom support rod, and the adjustable support arm structure is provided on the outer wall of the rotating support rod. The bottom end of the top support rod is fixedly connected to the top end of the rotating support rod, and a guide post is provided on the rod body of the top support rod to guide the steel wire rope in the traction structure to extend out. The driving device is disposed inside the rotating support rod and the top support rod, and is used to drive the rotating support rod and the top support rod to rotate synchronously around the bottom support rod. The drive device includes a servo motor, a drive rod, a synchronization component, and a locking component; The servo motor is disposed inside the bottom support rod and is fixedly connected to the inner wall of the bottom support rod; One end of the drive rod is connected to the drive shaft of the servo motor, and the rod body of the drive rod extends into the rotating support rod and the top support rod in sequence; The synchronization component is disposed inside the rotating support rod and is engaged with the drive rod. The bolting assembly is disposed inside the top support rod and is engaged with the drive rod; The bolting assembly includes a bolting plate, two support rings, and two second internal gear rings; Two support rings are disposed at both ends of the bolt plate and are integrally connected to the bolt plate; Two second internal gear rings are respectively disposed on the inner walls of the two support rings and mesh with the second drive gear disposed on the drive rod; The bolt plate has multiple through slots along its longitudinal direction, the same number as the number of steel wire ropes, and the sidewalls of the through slots are provided with conical teeth. The adjustable outrigger structure includes multiple outriggers, the same number as the steel wire ropes. Multiple outriggers are connected in sequence, and the front end of each outrigger is connected to one end of a steel wire rope.

2. The open channel radar flow monitoring device according to claim 1, characterized in that, The synchronization component includes a synchronization ring and two first internal gear rings; The synchronization ring has a synchronization groove, which cooperates with the protrusion provided on the inner wall of the rotating support rod; Two first internal gear rings are sequentially arranged on the inner wall of the synchronizing ring along the axial direction of the synchronizing ring, and mesh with the first driving gear arranged on the driving rod.

3. The open channel radar flow monitoring device according to claim 1, characterized in that, The bolting assembly further includes two sets of rolling elements, each set of rolling elements being disposed on the outer wall of a support ring; Each set of rolling elements includes an outer support and multiple rollers; The outer support is fixed to the outer wall of the support ring; Multiple rollers are mounted on the outer support and roll within a track located on the inner wall of the top support rod.

4. The open channel radar flow monitoring device according to claim 1, characterized in that, The traction structure includes an encoder and a number of winding devices equal to the number of wire ropes, each of the winding devices including a permanent magnet synchronous motor and a winding roller; The permanent magnet synchronous motor is disposed on the outer wall of the top support rod and connected to the take-up roller disposed on the inner wall of the top support rod, for driving the take-up roller to rotate; One end of the wire rope is fixed to the winding roller, and the other end is connected to the adjustable support arm structure. The encoder is connected to the permanent magnet synchronous motor and the servo motor.

5. The open channel radar flow monitoring device according to claim 1, characterized in that, It also includes a camera, a solar panel, and an electrical control box installed on the outer wall of the bottom support rod.

6. The open channel radar flow monitoring device according to claim 1, characterized in that, The guide column is equipped with pulleys.

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