Weir type groove gate for irrigation area based on Internet of Things and control system of weir type groove gate

By designing a weir-type channel gate based on the Internet of Things, and combining drive components, sealing components, and sensor systems, the stability and intelligent control issues of channel gates in irrigation area applications have been solved. This has enabled precise water flow regulation and stability of channel gate components, thereby improving the operational reliability and intelligent management of the channel gate.

CN121853535APending Publication Date: 2026-04-14BEIJING VALVE GENERAL FACTORY CO LTD +1
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-16
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing gate systems in irrigation areas suffer from problems such as seal failure, inability to drain upstream water during maintenance, lateral swaying of the gate, elongation of steel cables due to elastic deformation over long-term operation, and failure to stop the gate from encountering obstacles at the bottom, leading to damage. These issues make it difficult to achieve long-term stable operation and remote intelligent monitoring and control.

Method used

Design an IoT-based weir-type slot gate, including a drive assembly, a slot gate assembly, and a sealing assembly. Combined with a sensor assembly and a control system, the slot gate assembly is driven to open and close by a servo motor. An angular displacement sensor is used to detect the angular travel of the gate plate, monitor water level changes in real time, and calculate data deviations to identify obstacles, thereby achieving intelligent control and reliable sealing.

Benefits of technology

It achieves precise water flow control and stability of the gate components, improves the operational reliability and intelligent management capabilities of the gate, and prevents the gate from being damaged by obstacles.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121853535A_ABST
    Figure CN121853535A_ABST
Patent Text Reader

Abstract

The invention discloses an irrigation area weir type groove gate based on the Internet of Things and a control system thereof, and belongs to the technical field of groove gates, the irrigation area weir type groove gate comprises a square frame, and further comprises a driving assembly, a groove gate assembly and a sealing assembly; the driving assembly, the groove gate assembly and the sealing assembly are all installed on the square frame. The groove gate assembly and the sealing assembly are used in a matched and sealed mode. The driving assembly comprises a double-output-shaft worm gear case, a servo motor, a driving shaft, a double-groove cable disc, a first steel cable and a second steel cable. In this way, the barrier detection device can detect the barrier when the groove gate is opened and closed.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of sluice gate technology, specifically to an Internet of Things-based weir-type sluice gate for irrigation areas and its control system. Background Technology

[0002] Due to their advantages such as precise flow regulation and convenient control, sluice gates are widely used in farmland irrigation projects. However, current sluice gates on the market suffer from insufficient long-term operating experience, resulting in numerous design flaws and practical operational problems in irrigation areas. These problems include: seal failure due to detachment, inability to drain upstream water during maintenance, lateral swaying of the gate, elongation of the steel cable due to long-term elastic deformation, and failure to stop the gate at the bottom when encountering obstacles, leading to damage. These issues prevent existing sluice gates from achieving long-term stable operation in irrigation areas and make it difficult to meet the requirements of remote intelligent monitoring and control.

[0003] The Northwest region is sparsely populated and has many large-scale water conservancy and irrigation projects, such as the Yintao Water Diversion Project and the Ningxia Yellow River Irrigation Area. These projects require a large number of gates and sluices to achieve intelligent linkage and precise irrigation. Therefore, improving the practicality and stability of the gates and sluices is of paramount importance.

[0004] Among numerous existing technologies, Chinese patent application CN116295649A discloses a hydraulic monitoring system for the spillway section of a floodgate, comprising a bend monitoring component, a drop detection component, an external shape detection component, and a data processing module. This invention, by setting up a bend monitoring component to detect the internal pressure and displacement of the bends in the spillway section, a drop detection component to detect the internal pressure and displacement of each drop point in the spillway section, and an external shape detection component to detect whether cracks or fissures exist on the exterior of the spillway section, assesses the hydraulic safety issues of the spillway section by detecting various data of the spillway section and provides early warnings for spillway sections with potential safety hazards.

[0005] However, this patent application cannot detect obstacles encountered when the gate is switched on.

[0006] Based on this, the present invention designs an IoT-based weir-type channel gate for irrigation areas and its control system to solve the above problems. Summary of the Invention

[0007] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an Internet of Things-based weir-type channel gate for irrigation areas and its control system.

[0008] To achieve the above objectives, the present invention provides the following technical solution: A weir-type channel gate for irrigation districts includes a square frame, a drive assembly, a channel gate assembly, and a sealing assembly; The drive assembly, the gate assembly, and the sealing assembly are all mounted on a square frame. The gate assembly and sealing assembly work together for sealing purposes; The drive assembly includes a dual-output shaft worm gear box, a servo motor, a drive shaft, a double-groove cable reel, a first steel cable, and a second steel cable; The dual-output shaft worm gear box is fixedly installed on the inner top of the square frame. The servo motor is fixedly installed on the outer shell of the dual-output shaft worm gear box. The output end of the servo motor is fixedly connected to the input end of the dual-output shaft worm gear box. There are two drive shafts, which are fixedly connected to the left and right output ends of the dual-output shaft worm gear box respectively. The two drive shafts are rotatably connected to the left and right inner walls of the square frame respectively. There are two dual-groove cable reels, which are fixedly installed on the outer walls of the two drive shafts respectively. The dual-groove cable reel has two winding ends. The winding end of the dual-groove cable reel near the side wall of the square frame is wound with a first steel cable. The winding end of the dual-groove cable reel away from the side wall of the square frame is wound with a second steel cable. The winding directions of the first steel cable and the second steel cable are opposite. One end of the first steel cable and the second steel cable are fixedly connected to the dual-groove cable reel. The other end of the first steel cable and the second steel cable are connected to the slot gate assembly. The slot gate assembly and the dual-groove cable reel are used for limiting. It also includes a sensor assembly for detecting the rotational travel of the gate assembly, which is mounted on a square frame.

[0009] Furthermore, the slot gate assembly includes a sector gate, a limiting slot, a gate plate, and a pin. There are two fan-shaped gates, which are fixedly installed on the left and right sides of the upper end face of the gate respectively. The front arc surface of the fan-shaped gate is provided with a limiting groove for use in conjunction with the double groove cable disc limiting sliding connection. The pin is fixedly connected to the left and right inner walls of the square frame. The rear end of the gate is hinged to the pin. The side wall of the fan-shaped gate near the inner wall of the square frame is used to seal with the sealing component. The rear end of the gate is used to seal with the sealing component. The other ends of the first and second steel cables are fixedly connected to the lower front side and the upper rear side of the limiting groove, respectively.

[0010] Furthermore, the sealing assembly includes a first sealing strip, a pressure strip, and a second sealing strip; There are two first sealing strips, which are respectively embedded in the left and right inner walls of the square frame. There are two pressure strips, which are respectively connected to the outer walls of the two first sealing strips. The pressure strips are fixed to the square frame by bolts. The first sealing strips are slidably connected to the side wall of the fan-shaped gate near the inner wall of the square frame. The second sealing strip is embedded in the inner bottom of the square frame and is slidably connected to the rear end of the gate.

[0011] Furthermore, the sensor assembly includes an angular displacement sensor, which is fixedly installed on the upper right side inside the square frame; The angular displacement sensor is used to detect the angular travel of the sector gate. The sensor assembly also includes a water level sensor one and a water level sensor two, which are respectively fixedly installed on the upper side of the left front and rear end faces of the square frame. Water level sensor one is used to detect the water level at the front end of the square frame, and water level sensor two is used to detect the water level at the rear end of the square frame.

[0012] An Internet of Things-based control system for irrigation weir-type gates, utilizing the irrigation weir-type gates as described in the claims, includes a central controller, a solar power supply module, an alarm module, a wireless communication module, a base station, and a water conservancy monitoring platform; The central controller is electrically connected to the solar power module, angular displacement sensor, water level sensor 1, water level sensor 2, alarm module, wireless communication module, and servo motor. The base station is wirelessly connected to the wireless communication module and the water conservancy monitoring platform. The alarm module is used for alarm notification; The solar power module is used to power the central controller; The water conservancy monitoring platform communicates wirelessly with the central controller via a wireless communication module and a base station. The angular displacement sensor transmits the actual angular travel S of the sector gate to the central controller. Water level sensor 1 and water level sensor 2 send the collected water level data to the central controller. The central controller then sends the angular travel data and water level data to the water conservancy monitoring platform via a wireless communication module and a base station. The water conservancy monitoring platform is used to generate motor control signals to control the number of rotations of the servo motor, and sends them to the central controller through a wireless communication module and a base station. The water conservancy monitoring platform monitors water level changes in real time based on water level data; The central controller controls the servo motor to run the corresponding number of revolutions based on the motor control signal. The central controller converts the motor control signal into the theoretical angular travel L of the sector gate and compares it with the actual angular travel S. It then calculates whether the data deviation P between the two angular travels is greater than the threshold k. If it is greater, the central controller determines that the gate has encountered an obstacle. The central controller then sends an alarm to the control alarm module and stops the servo motor. At the same time, the central controller sends an obstacle alarm signal to the water conservancy monitoring platform through the wireless communication module and base station.

[0013] Furthermore, the data deviation P is calculated using the following formula: P = |(SL) / S| × 100%.

[0014] Furthermore, the value of K is 2%.

[0015] Furthermore, the alarm module uses an audible and visual alarm.

[0016] Compared with the prior art, the beneficial effects of this invention are: by driving the gate assembly to open and close through the driving component, the accuracy of water flow regulation can be achieved; The sealing assembly ensures reliable sealing between the gate assembly and the square frame. By driving the gate assembly to rotate while simultaneously limiting its movement, the stability of the gate assembly's operation is improved. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0018] Figure 1 This invention relates to a three-dimensional weir-type channel gate for irrigation areas. Figure 1 ; Figure 2 This is a front view of a weir-type channel gate for irrigation areas according to the present invention; Figure 3 This is a left view of a weir-type channel gate for irrigation areas according to the present invention; Figure 4 This invention relates to a three-dimensional weir-type channel gate for irrigation areas. Figure 2 ; Figure 5 For along Figure 2 A sectional view along the AA direction; Figure 6 For along Figure 3 BB direction sectional view; Figure 7 This is a schematic diagram of the square frame and sealing assembly of the present invention; Figure 8 for Figure 5 Enlarged view of point C in the middle; Figure 9 for Figure 6 Enlarged view at point D; Figure 10 This is a block diagram of an IoT-based weir-type channel gate control system for irrigation areas according to the present invention.

[0019] The labels in the diagram represent: 1. Square frame 2. Drive assembly 21. Dual-axis worm gear box 22. Servo motor 23. Drive shaft 24. Double-groove cable reel 25. First steel cable 26. Second steel cable 3. Slot gate assembly 31. Sector gate 32. Limiting groove 33. Gate 34. Pin 4. Sealing assembly 41. First sealing strip 42. Pressure strip 43. Second sealing strip 5. Central controller 6. Solar power supply module 7. Sensor assembly 71. Angular displacement sensor 72. Water level sensor one 73. Water level sensor two 8. Alarm module 9. Wireless communication module 10. Base station 11. Water conservancy monitoring platform. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0022] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-10 A weir-type channel gate for irrigation districts includes a square frame 1, a drive assembly 2, a channel gate assembly 3, and a sealing assembly 4; Drive assembly 2, gate assembly 3, and sealing assembly 4 are all mounted on square frame 1; The gate assembly 3 and the sealing assembly 4 are used together for sealing. Drive assembly 2 includes a dual-output worm gear box 21, a servo motor 22, a drive shaft 23, a double-groove cable reel 24, a first steel cable 25, and a second steel cable 26; A dual-output-shaft worm gearbox 21 is fixedly installed on the inner top of the square frame 1. A servo motor 22 is fixedly installed on the outer shell of the dual-output-shaft worm gearbox 21. The output end of the servo motor 22 is fixedly connected to the input end of the dual-output-shaft worm gearbox 21. There are two drive shafts 23, which are fixedly connected to the left and right output ends of the dual-output-shaft worm gearbox 21 respectively. The two drive shafts 23 are rotatably connected to the left and right inner walls of the square frame 1 respectively. There are two double-groove cable trays 24, which are fixedly installed on the outer walls of the two drive shafts 23 respectively. The double-groove cable reel 24 has two winding ends. The winding end of the double-groove cable reel 24 near the side wall of the square frame 1 is wound with a first steel cable 25, and the winding end of the double-groove cable reel 24 away from the side wall of the square frame 1 is wound with a second steel cable 26. The winding directions of the first steel cable 25 and the second steel cable 26 are opposite. One end of the first steel cable 25 and the second steel cable 26 are fixedly connected to the double-groove cable reel 24, and the other end of the first steel cable 25 and the second steel cable 26 are connected to the slot gate assembly 3. The slot gate assembly 3 and the double-groove cable reel 24 are used for limiting movement. It also includes a sensor assembly 7 for detecting the rotational stroke of the gate assembly 3, which is mounted on the square frame 1.

[0023] When this invention is used, the drive component 2 drives the gate component 3 to open and close, thereby achieving precise water flow regulation. The sealing component 4 ensures reliable sealing between the gate assembly 3 and the square frame 1. While driving the gate assembly 3 to rotate, the drive assembly 2 simultaneously limits the gate assembly 3, thereby improving the stability of the gate assembly 3's operation.

[0024] Example 2: In some embodiments, such as Figures 1-10 As shown, in a preferred embodiment of the present invention, the slot gate assembly 3 includes a sector gate 31, a limiting slot 32, a gate 33, and a pin 34. There are two fan-shaped gate plates 31, which are fixedly installed on the left and right sides of the upper end face of the gate plate 33 respectively. The front arc surface of the fan-shaped gate plate 31 is provided with a limiting groove 32 for use in the limiting sliding connection with the double groove cable disc 24. The pin shaft 34 is fixedly connected to the left and right inner walls of the square frame 1. The rear end of the gate plate 33 is hinged to the pin shaft 34. The side wall of the fan-shaped gate plate 31 near the inner wall of the square frame 1 is used for sealing with the sealing component 4. The rear end of the gate plate 33 is used for sealing with the sealing component 4. The other ends of the first steel cable 25 and the second steel cable 26 are fixedly connected to the lower front side and the upper rear side of the limiting groove 32, respectively.

[0025] The sealing assembly 4 includes a first sealing strip 41, a pressure strip 42, and a second sealing strip 43; There are two first sealing strips 41, which are respectively embedded in the left and right inner walls of the square frame 1. There are two pressure strips 42, which are respectively connected to the outer walls of the two first sealing strips 41. The pressure strips 42 are fixedly connected to the square frame 1 by bolts. The first sealing strips 41 are slidably connected to the side wall of the fan-shaped gate 31 near the inner wall of the square frame 1. The second sealing strip 43 is embedded in the inner bottom of the square frame 1. The second sealing strip 43 is slidably connected to the rear end of the gate 33. When using this invention, when adjusting the rotation angle of the sector gate 31, the servo motor 22 is started, and the servo motor 22 drives the double-output shaft worm gear box 21 to run. The left and right output ends of the double-output shaft worm gear box 21 respectively drive the drive shafts 23 on both sides to rotate. The drive shafts 23 drive the double-groove cable disc 24 to rotate. Since the first steel cable 25 and the second steel cable 26 on the double-groove cable disc 24 have opposite winding directions, the first steel cable 25 and the second steel cable 26 bear the traction force that pulls the sector gate 31 to rotate when the double-groove cable disc 24 rotates. When in use, the invention prevents the gate 33 from swaying laterally during the opening and closing process by limiting the sliding of the double-groove cable disc 24 and the limiting groove 32, thus achieving the limiting function without the need for an additional limiting device.

[0026] Sensor assembly 7 includes angular displacement sensor 71, which is fixedly installed on the upper right side inside the square frame 1; Angular displacement sensor 71 is used to detect the angular travel of sector gate 31; The sensor assembly 7 also includes a water level sensor 1 72 and a water level sensor 2 73, which are fixedly installed on the upper side of the left front and rear end faces of the square frame 1, respectively. Water level sensor 1 72 is used to detect the water level at the front end of the square frame 1, and water level sensor 2 73 is used to detect the water level at the rear end of the square frame 1.

[0027] Example 3: In some embodiments, such as Figures 1-10 As shown, as a preferred embodiment of the present invention, the present invention also provides an Internet of Things-based weir-type gate control system for irrigation areas, including a central controller 5, a solar power supply module 6, an alarm module 8, a wireless communication module 9, a base station 10, and a water conservancy monitoring platform 11. The central controller 5 is electrically connected to the solar power supply module 6, angular displacement sensor 71, water level sensor 1 72, water level sensor 2 73, alarm module 8, wireless communication module 9, and servo motor 22. Base station 10 is wirelessly connected to wireless communication module 9 and water conservancy monitoring platform 11; Alarm module 8 is used for alarm notification; Solar power module 6 is used to power central controller 5; The water conservancy monitoring platform 11 communicates wirelessly with the central controller 5 via the wireless communication module 9 and the base station 10. The angular displacement sensor 71 sends the actual angular travel S of the sector gate 31 to the central controller 5. Water level sensor 72 and water level sensor 73 send the collected water level data to the central controller 5. The central controller 5 then sends the angular travel data and water level data to the water conservancy monitoring platform 11 via the wireless communication module 9 and the base station 10. The water conservancy monitoring platform 11 is used to generate motor control signals to control the number of rotations of the servo motor 22, and sends them to the central controller 5 through the wireless communication module 9 and the base station 10. The water conservancy monitoring platform 11 monitors water level changes in real time based on water level data; The central controller 5 controls the servo motor 22 to run the corresponding number of revolutions according to the motor control signal; The central controller 5 converts the motor control signal into the theoretical angular stroke L of the sector gate 31 and compares it with the actual angular stroke S. It then calculates whether the data deviation P between the two angular strokes is greater than the threshold k. If it is greater, the central controller 5 determines that the gate 33 has encountered an obstacle. The central controller 5 then sends an alarm to the control alarm module 8. At the same time, the central controller 5 controls the servo motor 22 to stop and sends an obstacle alarm signal to the water conservancy monitoring platform 11 through the wireless communication module 9 and the base station 10.

[0028] The data deviation P is calculated using the following formula: P = |(SL) / S| × 100%; The value of K is 2%.

[0029] The alarm module 8 uses an audible and visual alarm.

[0030] When this invention is used, the water conservancy monitoring platform 11 of the Internet of Things system is used to realize real-time monitoring of data, while the square frame 1 controls the operation of the weir-type channel gate. In use, the actual angular travel S of the sector gate 31 is monitored in real time by the angular displacement sensor 71. The system compares and calculates S and L to determine whether the gate 33 encounters an obstacle during the opening and closing process. If an obstacle is encountered, the system immediately stops the servo motor 22 to protect the servo motor 22 and triggers an alarm through the alarm module 8.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A weir-type channel gate for irrigation areas, comprising a square frame (1), characterized in that: It also includes a drive assembly (2), a gate assembly (3), and a sealing assembly (4); The drive assembly (2), the gate assembly (3), and the sealing assembly (4) are all mounted on the square frame (1); The gate assembly (3) and the sealing assembly (4) are used together for sealing. The drive assembly (2) includes a dual-output worm gear box (21), a servo motor (22), a drive shaft (23), a double-groove cable reel (24), a first steel cable (25), and a second steel cable (26); The dual-output worm gear box (21) is fixedly installed on the inner top of the square frame (1). The servo motor (22) is fixedly installed on the outer shell of the dual-output worm gear box (21). The output end of the servo motor (22) is fixedly connected to the input end of the dual-output worm gear box (21). There are two drive shafts (23) and they are fixedly connected to the left and right output ends of the dual-output worm gear box (21) respectively. The two drive shafts (23) are rotatably connected to the left and right inner walls of the square frame (1) respectively. There are two double-groove cable trays (24) and they are fixedly installed on the outer walls of the two drive shafts (23) respectively. The device has two winding ends. The winding end of the double-groove cable reel (24) near the side wall of the square frame (1) is wound with a first steel cable (25), and the winding end of the double-groove cable reel (24) away from the side wall of the square frame (1) is wound with a second steel cable (26). The winding directions of the first steel cable (25) and the second steel cable (26) are opposite. One end of the first steel cable (25) and the second steel cable (26) are fixedly connected to the double-groove cable reel (24), and the other end of the first steel cable (25) and the second steel cable (26) are connected to the slot gate assembly (3). The slot gate assembly (3) and the double-groove cable reel (24) are used for limiting the position. It also includes a sensor assembly (7) for detecting the rotational stroke of the gate assembly (3), which is mounted on a square frame (1).

2. The weir-type channel gate for irrigation areas according to claim 1, characterized in that, The slot gate assembly (3) includes a sector gate (31), a limiting slot (32), a gate (33), and a pin (34); There are two fan-shaped gates (31) and they are fixedly installed on the left and right sides of the upper end face of the gate (33). The front arc surface of the fan-shaped gate (31) is provided with a limiting groove (32) for use in the limiting sliding connection with the double groove cable disc (24). The pin (34) is fixedly connected to the left and right inner walls of the square frame (1). The rear end of the gate (33) is hinged to the pin (34). The side wall of the fan-shaped gate (31) near the inner wall of the square frame (1) is used for sealing with the sealing component (4). The rear end of the gate (33) is used for sealing with the sealing component (4). The other ends of the first steel cable (25) and the second steel cable (26) are fixedly connected to the lower front end and the upper rear end of the limiting groove (32), respectively.

3. The weir-type channel gate for irrigation areas according to claim 2, characterized in that, The sealing assembly (4) includes a first sealing strip (41), a pressure strip (42), and a second sealing strip (43). There are two first sealing strips (41) and they are respectively embedded on the left and right inner walls of the square frame (1). There are two pressure strips (42). The two pressure strips (42) are respectively connected to the outer walls of the two first sealing strips (41). The pressure strips (42) are fixedly connected to the square frame (1) by bolts. The first sealing strip (41) is in close contact with the side wall of the fan-shaped gate (31) near the inner wall of the square frame (1). The second sealing strip (43) is embedded in the inner bottom of the square frame (1). The second sealing strip (43) is in close contact with the rear end of the gate (33).

4. The weir-type channel gate for irrigation areas according to claim 3, characterized in that, The sensor assembly (7) includes an angular displacement sensor (71), which is fixedly installed on the upper right side inside the square frame (1); The angular displacement sensor (71) is used to detect the angular travel of the sector gate (31); The sensor assembly (7) also includes a water level sensor one (72) and a water level sensor two (73), which are respectively fixedly installed on the upper side of the front and rear end faces of the square frame (1). Water level sensor 1 (72) is used to detect the water level at the front end of the square frame (1), and water level sensor 2 (73) is used to detect the water level at the rear end of the square frame (1).

5. A control system for a weir-type channel gate in an irrigation area based on the Internet of Things, utilizing the weir-type channel gate for irrigation areas as described in claim 4, characterized in that, It includes a central controller (5), a solar power supply module (6), an alarm module (8), a wireless communication module (9), a base station (10), and a water conservancy monitoring platform (11). The central controller (5) is electrically connected to the solar power supply module (6), angular displacement sensor (71), water level sensor one (72), water level sensor two (73), alarm module (8), wireless communication module (9), and servo motor (22); The base station (10) is wirelessly connected to the wireless communication module (9) and the water conservancy monitoring platform (11); The alarm module (8) is used for alarm notification; The solar power module (6) is used to power the central controller (5); The water conservancy monitoring platform (11) and the central controller (5) communicate wirelessly via a wireless communication module (9) and a base station (10); The angular displacement sensor (71) sends the actual angular travel S of the sector gate (31) to the central controller (5). Water level sensor 1 (72) and water level sensor 2 (73) send the collected water level data to the central controller (5). The central controller (5) sends the angular travel data and water level data to the water conservancy monitoring platform (11) through the wireless communication module (9) and the base station (10). The water conservancy monitoring platform (11) is used to generate motor control signals to control the number of rotations of the servo motor (22), and sends them to the central controller (5) through the wireless communication module (9) and the base station (10). The water conservancy monitoring platform (11) monitors water level changes in real time based on water level data; The central controller (5) controls the servo motor (22) to run the corresponding number of revolutions according to the motor control signal; The central controller (5) converts the motor control signal into the theoretical angular stroke L of the sector gate (31) and compares it with the actual angular stroke S. It calculates whether the data deviation P between the two angular strokes is greater than the threshold k. If it is greater, the central controller (5) determines that the gate (33) has encountered an obstacle. The central controller (5) sends an alarm to the control alarm module (8). At the same time, the central controller (5) controls the servo motor (22) to stop and sends an obstacle alarm signal to the water conservancy monitoring platform (11) through the wireless communication module (9) and the base station (10).

6. The IoT-based weir-type gate control system for irrigation areas according to claim 5, characterized in that, The data deviation P is calculated using the following formula: P = |(SL) / S| × 100%.

7. The IoT-based weir-type channel gate control system for irrigation areas according to claim 5, characterized in that, The value of K is 2%.

8. The IoT-based weir-type channel gate control system for irrigation areas according to claim 5, characterized in that, The alarm module (8) uses an audible and visual alarm.

Citation Information

Patent Citations

  • Water conservancy monitoring system for discharge chute section of flood discharge gate

    CN116295649A