Open channel radar flow monitoring equipment

Abstract

The invention belongs to the technical field of hydraulic engineering safety monitoring, and particularly discloses open channel radar flow monitoring equipment which comprises a rotary supporting structure, a bottom supporting rod, an adjustable supporting arm structure, a traction structure and a radar sensor. The rotary supporting structure is rotationally connected with the bottom supporting rod, and the rotary supporting structure circumferentially rotates around the bottom supporting rod; one end of the adjustable support arm structure is connected with the rotary support structure, the other end of the adjustable support arm structure is provided with a radar sensor, and the adjustable support arm structure is used for changing the distance between the radar sensor and the rotary support structure; one end of the traction structure is connected with the rotary supporting structure and located above the adjustable supporting arm structure, and the other end of the traction structure is connected with the adjustable supporting arm structure and used for pulling the adjustable supporting arm structure. According to the monitoring equipment, the radar sensor can rotate in the circumferential direction, the monitoring radius and the monitoring angle of the radar sensor can be changed, and adaptive adjustment of the monitoring position and the monitoring angle is achieved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of water conservancy safety monitoring, and specifically discloses an open channel radar flow monitoring device. BACKGROUND

[0002] The open channel radar flow monitoring device is a non-contact flow monitoring tool based on radar technology, and is widely used in the fields of water conservancy, agricultural irrigation, urban drainage and the like. It is mainly composed of the following parts:

[0003] The radar sensor includes a radar water level gauge and a radar flow velocity meter, and usually integrates three-in-one functions (water level, flow velocity and flow rate), and measures through the emission of microwave signals and the reception of reflected waves.

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

[0005] The power supply system is mainly powered by solar energy, and is matched with a storage battery to ensure continuous operation and adapt to the field environment.

[0006] The auxiliary equipment includes a vertical rod support, a lightning protection device and a camera (which can be optionally equipped with real-time monitoring of the scene).

[0007] The above-mentioned open channel radar flow monitoring device is installed on the bank of the open channel, and the installation environment is complex and the environment is relatively harsh. Influenced by these factors, the monitoring position and the monitoring angle of the radar sensor cannot be adjusted after being installed through the auxiliary equipment, so that only one position of the water flow can be monitored, multi-point monitoring cannot be realized, and accurate analysis of the entire water area cannot be made. In order to make the monitoring result more accurate, the supporting arm supporting the radar sensor is generally long, and under the influence of bad weather, the balance of the entire device will be affected, so that the equipment will be tilted and other conditions, which is not conducive to long-term monitoring. SUMMARY

[0008] The application aims to provide an open channel radar flow monitoring device to solve the technical problem that the monitoring position and the monitoring angle of the existing open channel radar flow monitoring device are difficult to adjust.

[0009] The application provides an open channel radar flow monitoring device, which comprises a rotating support structure, a bottom support rod, an adjustable supporting arm structure, a traction structure and a radar sensor.

[0010] The rotating support structure is rotationally connected with the bottom support rod, and rotates circumferentially around the bottom support rod.

[0011] 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, and the adjustable support arm structure is used for changing the distance between the radar sensor and the rotating support structure.

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

[0013] Preferably, the rotating support structure comprises a rotating support rod, a top support rod and a driving device.

[0014] The bottom end of the rotating support rod is rotationally connected with the top end of the bottom support rod, and the outer wall of the rod body of the rotating support rod is provided with the adjustable support arm structure.

[0015] The bottom end of the top support rod is fixedly connected with the top end of the rotating support rod, and a guide column for guiding the extension of the steel wire rope in the traction structure is arranged on the rod body of the top support rod.

[0016] The driving device is arranged inside the rotating support rod and the top support rod, and is used for driving the rotating support rod and the top support rod to synchronously rotate around the bottom support rod in the circumferential direction.

[0017] Preferably, the driving device comprises a servo motor, a driving rod, a synchronous assembly and a locking assembly.

[0018] The servo motor is arranged in the bottom support rod and fixedly connected with the inner wall of the bottom support rod.

[0019] One end of the driving rod is connected with the driving shaft of the servo motor, and the rod body of the driving rod extends into the rotating support rod and the top support rod in sequence.

[0020] The synchronous assembly is arranged in the rotating support rod and meshingly connected with the driving rod.

[0021] The locking assembly is arranged in the top support rod and meshingly connected with the driving rod.

[0022] Preferably, the synchronous assembly comprises a synchronous ring and two first internal toothed rings.

[0023] The synchronous ring is provided with a synchronous groove, and the synchronous groove is matched with a convex column arranged on the inner wall of the rotating support rod.

[0024] The two first internal toothed rings are arranged on the inner wall of the synchronous ring in sequence along the axial direction of the synchronous ring and meshingly connected with a first driving gear arranged on the driving rod.

[0025] Preferably, the locking assembly comprises a locking plate, two support rings and two second internal toothed rings.

[0026] Two support rings are arranged at two ends of the anchoring plate and are integrally connected with the anchoring plate;

[0027] Two second inner toothed rings are arranged on the inner walls of the two support rings and are meshed with the second driving gears arranged on the driving rods;

[0028] A plurality of through grooves are longitudinally arranged on the anchoring plate and are arranged with bevel gears on the side walls of the through grooves.

[0029] Preferably, the anchoring assembly further comprises two groups of rolling elements, and each group of the rolling elements is arranged on the outer wall of one support ring;

[0030] Each group of rolling elements comprises an outer support and a plurality of rollers;

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

[0032] The plurality of rollers are arranged on the outer support and roll in the track arranged on the inner wall of the top support rod.

[0033] Preferably, the traction structure comprises an encoder and a plurality of winding devices equal to the number of steel wires, and each winding device comprises a permanent magnet synchronous motor and a winding roller;

[0034] The permanent magnet synchronous motor is arranged on the outer wall of the top support rod and is connected with the winding roller arranged on the inner wall of the top support rod, and is used for driving the winding roller to rotate;

[0035] One end of the steel wire is fixed on the winding roller, and the other end is connected with the adjustable support arm structure;

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

[0037] Preferably, the adjustable support arm structure comprises a plurality of groups of support arms equal to the number of steel wires;

[0038] The plurality of groups of support arms are sequentially movably connected, and the front end of each group of support arms is connected with one end of a steel wire.

[0039] Preferably, a camera, a solar cell panel and an electric control box are arranged on the outer wall of the bottom support rod.

[0040] Preferably, a pulley is arranged in the guide column.

[0041] Compared with the prior art, the open channel radar flow monitoring device has the following beneficial effects:

[0042] The open channel radar flow monitoring device of the present application realizes adaptive adjustment of monitoring position and monitoring angle by rotating the support structure to rotate the radar sensor in the circumferential direction, and changing the monitoring radius and monitoring angle of the radar sensor by cooperation of the adjustable support arm structure and the traction structure, can weave a fan-shaped monitoring matrix net on the surface of the open channel, so as to obtain more comprehensive water area information and more accurate analysis of the water flow. The adjustable support arm structure of the present application can also be folded under bad weather to reduce damage and ensure the safety of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 It is a perspective view of the open channel radar flow monitoring device of the embodiment of the present application.

[0044] Figure 2 It is a front view of the open channel radar flow monitoring device of the embodiment of the present application.

[0045] Figure 3 It is Figure 2 It is an enlarged view of A in the figure.

[0046] Figure 4 It is an exploded view of the rest of the structure except the solar cell panel and the electric control box in the open channel radar flow monitoring device of the embodiment of the present application.

[0047] Figure 5 It is a combination schematic diagram of the rotating support structure, the adjustable support arm structure, the traction structure and the radar sensor in the open channel radar flow monitoring device of the embodiment of the present application.

[0048] Figure 6 It is a structure schematic diagram of the driving device in the open channel radar flow monitoring device of the embodiment of the present application.

[0049] Figure 7 It is a structure schematic diagram of the locking assembly in the open channel radar flow monitoring device of the embodiment of the present application.

[0050] Figure 8 It is a state diagram of the elongation of the plurality of support arms in the open channel radar flow monitoring device of the embodiment of the present application.

[0051] Figure 9 It is a state diagram of the contraction of the plurality of support arms in the open channel radar flow monitoring device of the embodiment of the present application.

[0052] Figure 10 It is a state diagram of the storage of the plurality of support arms in the open channel radar flow monitoring device of the embodiment of the present application.

[0053] In the figure: 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, winding roller; 62, encoder; 7, bolt plate; 71, through slot; 72, bevel gear; 73, support ring; 74, second inner gear ring; 75, outer support; 76, roller; 8, synchronous ring; 81, synchronous groove; 82, first inner 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, electric control box. DETAILED DESCRIPTION

[0054] In the following description, for the sake of explanation, but not to limit, specific details are set forth such as particular techniques, structures, etc. in order to provide a thorough understanding of embodiments of the application. However, it will be apparent to those skilled in the art that the application can be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the application with unnecessary detail.

[0055] The embodiment of the application provides a kind of open channel radar flow monitoring equipment, as shown in Figures 1 to 10 It includes rotating support structure, bottom support rod 1, adjustable support arm structure, traction structure and radar sensor 10.

[0056] Rotating support structure is rotationally connected with bottom support rod 1, and rotating support structure makes circumferential rotation around bottom support rod 1;One end of adjustable support arm structure is connected with rotating support structure, and the other end is provided with radar sensor 10, and adjustable support arm structure is used to change the distance between radar sensor 10 and rotating support structure;One end of traction structure is connected with rotating support structure and located above adjustable support arm structure, and the other end of traction structure is connected with adjustable support arm structure, for traction adjustable support arm structure.

[0057] The embodiment of the application realizes the circumferential rotation of radar sensor 10 by rotating support structure, to change the circumferential position of the water area monitored;The adjustment of the monitoring radius and the monitoring angle of radar sensor 10 is realized by the cooperation of adjustable support arm structure and traction structure, to meet the monitoring needs of different open channels.The combination of rotating support structure and adjustable support arm structure, traction structure makes the radar sensor 10 of the embodiment of the application be able to weave a fan-shaped monitoring matrix on the surface of open channel, so that more comprehensive water area information can be obtained, and the flow condition can be more accurately analyzed.Meanwhile, adjustable support arm structure can be shrunk and folded in bad weather, reduce damage, and ensure the safety of equipment.

[0058] The rotating support structure of the embodiment of the present application comprises 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 with the top end of the bottom support rod 1, and can be connected by a bearing. An adjustable support arm structure is arranged on the outer wall of the rod body of the rotating support rod 2. The bottom end of the top support rod 3 is fixedly connected with the top end of the rotating support rod 2, and can be connected by a screw thread, thereby facilitating maintenance and disassembly. A guide column 31, through which a steel wire rope 5 of a guide traction structure extends, is arranged on the rod body of the top support rod 3. A signal transmission antenna 33 is arranged on the top of the top support rod 3. The driving device is arranged 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 synchronously rotate around the bottom support rod 1.

[0059] In the embodiment of the present application, the steel wire rope 5 can be more smoothly wound by arranging a pulley 32 in the guide column 31.

[0060] The driving device of the embodiment of the present application comprises a servo motor 9, a driving rod 91, a synchronous assembly and a locking assembly. The servo motor 9 is arranged in the bottom support rod 1 and is fixedly connected with the inner wall of the bottom support rod 1. One end of the driving rod 91 is connected with the driving shaft of the servo motor 9 through a shaft coupling, and the rod body of the driving rod 91 extends into the rotating support rod 2 and the top support rod 3 in sequence. The synchronous assembly is arranged in the rotating support rod 2 and is meshingly connected with the driving rod 91. The locking assembly is arranged in the top support rod 3 and is meshingly connected with the driving rod 91. In the embodiment of the present application, the servo motor 9 drives the driving rod 91 to rotate, and the driving rod 91 drives the synchronous assembly and the locking assembly to synchronously rotate in a circumferential direction. The structure is simple, easy to realize and has good stability.

[0061] The synchronous assembly comprises a synchronous ring 8 and two first inner toothed rings 82. The synchronous ring 8 is connected with the rotating support rod 2 through a bearing. A synchronous groove 81 is formed in the synchronous ring 8. The synchronous groove 81 cooperates with a protruding column arranged on the inner wall of the rotating support rod 2, so that the synchronous ring 8 and the rotating support rod 2 are driven to synchronously rotate under the driving of the servo motor 9. The two first inner toothed rings 82 are arranged on the inner wall of the synchronous ring 8 in sequence along the axial direction of the synchronous ring 8, and are meshingly connected with a first driving gear 92 arranged on the driving rod 91. The first driving gear 92 drives the steel wire rope 5 to cooperate with the synchronous groove 81, so that stable rotation is realized.

[0062] The above-mentioned pinning assembly comprises a pinning plate 7, two support rings 73 and two second inner toothed rings 74; the two support rings 73 are arranged at two ends of the pinning plate 7 and are integrally connected with the pinning plate 7; the two second inner toothed rings 74 are respectively arranged on inner walls of the two support rings 73 and are engaged with the second driving gears 93 arranged on the driving rod 91; a plurality of through grooves 71 in the same number as the steel wire ropes 5 are longitudinally arranged on the pinning plate 7, and the side walls of the through grooves 71 are provided with bevel gears 72. The steel wire ropes 5 pass through the through grooves 71 and are connected with the adjustable support arm structure, can be pierced into the bevel gears 72 when the adjustable support arm structure is static, so that the steel wire ropes 5 are kept in a taut state, the slippage is avoided, and the stability of the adjustable support arm structure is ensured.

[0063] Because the pinning assembly will bear the resistance applied by the steel wire ropes 5 when rotating, in order to avoid movement deviation between the pinning assembly and the top supporting rod 3 and damage to the pinning assembly, the pinning assembly of the embodiment of the present application further comprises two groups of rolling members, each group of rolling members is arranged on the outer wall of one support ring 73; each group of rolling members comprises an outer support 75 and a plurality of rollers 76; the outer support 75 is fixed to the outer wall of the support ring 73; the plurality of rollers 76 are arranged on the outer support 75 and roll in the track 34 arranged on the inner wall of the top supporting rod 3. The embodiment of the present application realizes the connection between the pinning assembly and the top supporting rod 3 through the rolling members, and can avoid damage to the equipment caused by movement deviation.

[0064] The embodiment of the present application utilizes the driving rod 91 to synchronously drive the pinning plate 7 and the synchronous ring 8 to rotate, the pinning plate 7 and the synchronous ring 8 push the steel wire ropes 5, and then drive the rotating supporting rod 2 and the top supporting rod 3 to rotate, so that the radar sensor 10 can rotate circumferentially, the monitoring points are changed, and then cooperating with the change of the monitoring radius, the multi-water-area multi-point monitoring can be realized.

[0065] The traction structure of the embodiment of the present application comprises an encoder 62 and a plurality of winding devices in the same number as the steel wire ropes 5, each winding device comprises a permanent magnet synchronous motor 6 and a winding roller 61; wherein the permanent magnet synchronous motor 6 is arranged on the outer wall of the top supporting rod 3 and is connected with the winding roller 61 arranged on the inner wall of the top supporting rod 3, and is used to drive 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 with the adjustable support arm structure; the encoder 62 is connected with the permanent magnet synchronous motor 6 and the servo motor 9. The encoder 62 can record the winding length, so as to adjust the combined length and form of the adjustable support arm structure to meet the monitoring requirements. The embodiment of the present application utilizes the winding roller 61 to pull the steel wire rope 5, realizes the control of the telescopic amount of the adjustable support arm structure, and then adjusts the monitoring position and the monitoring angle of the radar sensor 10. At the same time, through the closed-loop control of the encoder 62 and the servo motor 9, the precise positioning and repetitive control of the monitoring points are realized, and the consistency and reliability of the data are improved.

[0066] The adjustable support arm structure in the embodiment of the present application comprises a plurality of groups of support arms 4 equal in number to the number of steel wires 5; the plurality of groups of support arms 4 are sequentially movably connected, and the front end of each group of support arms 4 is connected to one end of one steel wire 5. In the embodiment of the present application, the number of steel wires 5 is at least 3, and correspondingly, the number of support arms 4 is at least 3, and the plurality of groups of support arms 4 are rotatably connected through square ring buckles, so that the plurality of groups of support arms 4 have higher rotational freedom. In order to increase the rotational stability, the plurality of groups of support arms 4 in the embodiment of the present application can also be connected through intermeshing gears, and the interface is sealed through a corrugated hose to improve the service life in bad weather.

[0067] The adjustable support arm structure in the embodiment of the present application forms a telescopic and foldable structure through the steel wires 5, can adjust the plurality of groups of support arms 4 to three states of elongation, contraction and storage as needed, thereby changing the monitoring radius and monitoring angle of the radar sensor 10, and storing the radar sensor 10 when needed, thereby reducing the extension length of the entire adjustable support arm structure in bad weather, reducing damage in bad weather, and protecting the equipment.

[0068] In order to realize non-contact water level, flow rate and flow monitoring, and support remote data transmission and power supply, the open channel radar flow monitoring device in the embodiment of the present application further comprises a camera 11, a solar panel 12 and an electric control box 13 arranged on the outer wall of the bottom support rod 1. The electric control box 13 is connected with the camera 11, the radar sensor 10, the solar panel 12, the servo motor 9, the permanent magnet synchronous motor 6 and the encoder 62.

[0069] The support arm 4, the steel wire 5 and the permanent magnet synchronous motor 6 in the present application are combined, which can change the monitoring radius of the radar sensor 10 as needed, can meet the monitoring needs of different open channels, form a monitoring matrix, and can be folded in bad weather to reduce damage and ensure the safety of the equipment.

[0070] The cooperation of the locking plate 7, the synchronous ring 8 and the servo motor 9 can rotate the radar sensor 10 in the circumferential direction, thereby changing the circumferential position of the monitored water area, and can cooperate with the change of the monitoring radius to weave a fan-shaped monitoring matrix net on the surface of the open channel, thereby obtaining more comprehensive water area information and more accurately analyzing the water flow condition.

[0071] The through slot 71 arranged on the locking plate 7 can ensure the stability in the static state, avoid the slipping of the steel wire 5 due to the damage of the top support rod 3, and stably embed the steel wire 5 on the bevel gear 72 on the side wall of the through slot 71 during rotation to stably engage the steel wire 5, so as to ensure the stability of the combined form during rotation.

[0072] The application realizes accurate positioning and repetitive control of monitoring points by closed-loop control of the encoder 62 and the servo motor 9, and improves consistency and reliability of data.

[0073] The application has good engineering applicability and popularization value.

[0074] The above is only several embodiments of the application, and does not limit the application in any form. Although the application is disclosed with the preferred embodiments, it is not intended to limit the application. Any skilled person in the art can make some changes or modifications to the disclosed technical content without departing from the scope of the technical solution of the application, which are equivalent to equivalent embodiments and belong to 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 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.

2. The open channel radar flow monitoring device according to claim 1, characterized in that, 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.

3. The open channel radar flow monitoring device according to claim 2, characterized in that, 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.

4. The open channel radar flow monitoring device according to claim 3, 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.

5. The open channel radar flow monitoring device according to claim 3, characterized in that, 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.

6. The open channel radar flow monitoring device according to claim 5, 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.

7. The open channel radar flow monitoring device according to claim 3, 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.

8. The open channel radar flow monitoring device according to claim 7, characterized in that, 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.

9. 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.

10. The open channel radar flow monitoring device according to claim 2, characterized in that, The guide column is equipped with pulleys.

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