Radial gate opening measuring method

Abstract

A radial gate opening degree measuring method comprises the following steps that S1, the vertical rising height H2 of the upper edge of a radial gate after the radial gate is opened is measured; s2, the measured vertical rising height H2 is used for calculating the opening H1 of the radial gate according to the following formula; h1 = C1-sin (arcsin (C1 / R)-arcsin ((H2 + C2-C1) / R)-arcsin ((C2-C1) / R)) * R; in the formula, C1 is the height from the rotation center of the radial gate to the sill, C2 is the height from the upper edge of the door leaf to the sill when the radial gate is fully closed, and R is the arc radius of the radial water retaining panel of the radial gate. The invention aims to solve the problems that the existing radial gate opening measurement is inaccurate and is difficult to verify and check, and provides a high-precision and automatic measurement method with a remote monitoring function, so that the reliability and the operation convenience of radial gate opening measurement in water conservancy and hydropower engineering are improved, the water resource utilization is optimized, and the engineering operation safety is guaranteed.

Description

Technical Field

[0001] The invention relates to a method for measuring the opening of a radial gate. Background Art

[0002] In water conservancy and hydropower projects, the opening of radial gates is a key parameter for controlling water flow, directly impacting the rational utilization of water resources and the safe operation of the project. Accurately measuring gate opening is crucial for ensuring hydropower station power generation efficiency, flood control scheduling, and safeguarding ecological flows. However, existing methods for measuring radial gate opening suffer from numerous issues, leading to inaccurate results and, in turn, compromising the rational allocation of water resources and the safe operation of the project. Currently, the radial gate opening detection devices used in most water conservancy and hydropower projects often fail to provide accurate opening data due to design flaws, inadequate installation and commissioning, and sensor aging or performance degradation. These issues can arise not only in the initial stages of operation, but also increase over time as sensor performance degrades, further increasing errors. Furthermore, due to the complex motion of radial gates, their opening is difficult to measure directly, making it difficult for gate users to effectively verify and calibrate the accuracy and reliability of the measurement devices. Therefore, the inaccuracy and difficulty in verifying radial gate opening measurements have become urgent technical challenges in water conservancy and hydropower projects. The deficiencies of existing technologies not only lead to waste of water resources, but may also have a negative impact on the operational safety and economic benefits of hydropower stations. Summary of the Invention

[0003] The object of the present invention is to provide a method for measuring the opening of a radial gate, which is used to solve the problem that the existing radial gate opening measurement is inaccurate and difficult to verify and calibrate.

[0004] In order to solve the above problems, the technical solution of the present invention is: A method for measuring the opening of a radial gate comprises the following steps: S1: Measure the vertical rising height H2 of the upper edge of the radial gate after the radial gate is opened; S2: Calculate the radial gate opening H1 according to the following formula using the measured vertical rise height H2; H1= C1-sin(arcsin(C1 / R)-arcsin((H2+C2-C1) / R)-arcsin((C2-C1) / R))*R; Where: C1 is the height from the rotation center of the radial gate to the bottom sill, C2 is the height from the upper edge of the gate leaf to the bottom sill when the radial gate is fully closed, and R is the arc radius of the curved water retaining panel of the radial gate.

[0005] Furthermore, the vertical rise H2 is measured by a total station, a laser rangefinder, a tape measure or a rope of known length.

[0006] Furthermore, the vertical rise H2 is measured by a laser rangefinder, which is installed on a translation mechanism. The translation mechanism includes an electric slide installed on the dam surface on one side of the radial gate, and a bracket is fixedly connected to the slider in the electric slide, and the laser rangefinder is installed on the bracket.

[0007] Furthermore, a concrete boss is provided on the dam surface, and the electric slide is arranged on the boss.

[0008] Furthermore, it also includes a controller, a photoelectric switch is installed at each end of the guide rail in the electric slide, and a contact piece is installed on the slider in the electric slide, and the contact piece is used to trigger the photoelectric switch. The laser rangefinder and the photoelectric switch are connected to the controller input end, and the electric slide is connected to the controller output end.

[0009] Furthermore, it also includes a solar panel, which is fixedly connected to the dam surface through multiple support rods. The electric slide is located below the solar panel, and the solar panel is connected to the battery and the controller in sequence through a charging module.

[0010] Furthermore, it also includes a wireless communication module, and the controller is connected to the user end through the wireless communication module.

[0011] Furthermore, the user terminal is a computer.

[0012] Furthermore, the method for the laser rangefinder to measure the vertical rise height H2 includes: after the radial gate is opened, the electric slide drives the laser rangefinder to move horizontally. During the translation process, the laser rangefinder transmits the detected data to the user end through the wireless communication module in real time. The user end selects the minimum value H3, and finally calculates the vertical rise height H2, H2=C3-H3, where C3 is the distance between the upper edge of the door leaf and the laser rangefinder when the radial gate is fully closed.

[0013] The beneficial effects of the present invention are: 1. High-Precision Measurement: This invention uses a laser rangefinder to measure the vertical rise of the radial gate, combined with precise geometric calculation formulas, to achieve high-precision opening measurement. Compared with existing technologies, this significantly improves measurement accuracy and can provide more accurate opening data for water conservancy and hydropower projects.

[0014] 2. Automation and Intelligence: This invention utilizes an automated measurement system consisting of a motorized slide and controller, achieving automation and intelligent measurement. Driven by the motorized slide, the laser rangefinder moves along the dam surface, collecting real-time data and transmitting it to the user via a wireless communication module. Users can remotely monitor the measurement process and access data via a computer or other device, significantly improving measurement efficiency and convenience.

[0015] 3. Energy Self-Sufficiency and Environmental Adaptability: Equipped with solar panels and batteries, this system provides stable energy for the measurement system, enabling it to operate even in remote locations or outdoor environments without external power. This design not only improves the system's adaptability but also reduces reliance on traditional power sources, aligning with environmental protection principles.

[0016] 4. Verification and Calibration: This device can be used not only to calibrate and verify newly installed radial gate opening sensors, but also to verify the accuracy and evaluate the performance of existing sensors. By comparing with existing measurement devices, errors can be promptly identified and corrected, ensuring the long-term stability and reliability of gate opening measurements.

[0017] 5. Improve project safety: Accurate gate opening data is crucial for the safe operation of water conservancy and hydropower projects. The high-precision measurement method provided by this invention can provide reliable data support for project operations, helping managers better control water flow, reduce flood risks, and ensure the safe operation of projects.

[0018] In summary, the present invention has significant technical advantages and innovations in the field of radial gate opening measurement, can effectively solve the problems existing in the existing technology, and provide strong technical support for the efficient operation of water conservancy and hydropower projects and the rational use of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the main structure of the present invention, Figure 2 This is a side structural diagram of the present invention, Figure 3 It is a schematic diagram of the local structure of the present invention, Figure 4 This is a working principle diagram of the present invention, Figure 5 1 is a circuit diagram of the present invention.

[0020] In the figure: bottom sill 1, radial gate 2, dam surface 3, laser rangefinder 4, solar panel 5, upper edge of door leaf 6, lower edge of door leaf 7, bracket 8, electric slide 9, concrete boss 10, photoelectric switch 11, contact piece 12, support rod 13, charging module 14, controller 15, battery 16, wireless communication module 17, user end 18. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] like Figures 1 to 5 As shown, a method for measuring the opening of a radial gate includes the following steps: S1: Measure the vertical rising height H2 of the upper edge of the radial gate 2 after the radial gate 2 is opened; S2: Calculate the opening H1 of the radial gate 2 according to the following formula using the measured vertical rising height H2; H1= C1-sin(arcsin(C1 / R)-arcsin((H2+C2-C1) / R)-arcsin((C2-C1) / R))*R; Where: C1 is the height from the rotation center of radial gate 2 to the bottom sill 1, C2 is the height from the upper edge of the gate leaf to the bottom sill 1 when radial gate 2 is fully closed, and R is the arc radius of the curved water retaining panel of radial gate 2.

[0023] Furthermore, the vertical rise H2 is measured by a total station, a laser rangefinder 4, a tape measure or a rope of known length.

[0024] In the above formula, the three parameters C1, C2, and R are the basic parameters for the design, manufacture, and installation of the radial gate 2. They will be clearly marked on the corresponding design and construction drawings and are very easy to obtain. By simply obtaining the value of the vertical rise height H2, the opening H1 data of the radial gate 2 can be easily obtained, which is used to verify and judge the accuracy and correctness of the radial gate 2 opening data detected by the radial gate 2 opening sensor.

[0025] On the other hand, a variety of methods for measuring vertical rise height H2 are provided (total station, laser rangefinder4, tape measure or rope). Users can choose the appropriate tool according to actual conditions, which increases the flexibility of the method. Furthermore, the vertical rise H2 is measured by a laser rangefinder 4 (such as Keyence IL-600), which is installed on a translation mechanism. The translation mechanism includes an electric slide 9 installed on the dam surface 3 on one side of the radial gate 2, and a bracket 8 is fixedly connected to the slider in the electric slide 9, and the laser rangefinder 4 is installed on the bracket 8.

[0026] By horizontally translating to cover the entire motion trajectory of the upper edge of the radial gate 2, the user terminal 18 is used to screen the minimum value to determine H2, thereby avoiding deviations caused by fixed-point measurement (such as non-vertical displacement interference of the upper edge when the radial gate 2 rotates). At the same time, the electric slide 9 replaces the manually moved rangefinder to reduce human operation errors, and supports multiple repeated scans to obtain the average value, thereby further improving data reliability.

[0027] Furthermore, a concrete boss 10 is provided on the dam surface 3, and the electric slide 9 is arranged on the boss 10. The boss 10 provides an installation reference higher than the dam surface 3, preventing debris or water flow on the dam surface 3 from affecting the operation of the slide, thereby extending the service life of the equipment.

[0028] Furthermore, the system includes a controller 15 (e.g., a Siemens S7-1214C). A slot-type photoelectric switch 11 is mounted on each end of the guide rail of the electric slide 9. A contact 12 is mounted on the slider of the electric slide 9, which is used to trigger the photoelectric switch 11. The laser rangefinder 4 and the photoelectric switch 11 are connected to the input of the controller 15, and the electric slide 9 is connected to the output of the controller 15. The controller 15 receives signals from the photoelectric switch 11 to determine the position of the slider, thereby controlling the range and speed of the electric slide 9. For example, when the contact triggers the photoelectric switch 11, the controller 15 can stop the movement of the electric slide 9 to prevent the slider from exceeding a predetermined range.

[0029] During operation, after the radial gate 2 is opened, the controller 15 controls the slider in the electric slide 9 to move back and forth between the two photoelectric switches 11 to obtain the minimum measurement value, which is the vertical rise H2. In this way, the laser rangefinder 4 scans the complete horizontal trajectory of the upper edge of the radial gate 2 to ensure that the true maximum value of the vertical rise height (corresponding to the minimum value of the laser distance) is captured, avoiding the deviation caused by fixed point measurement. At the same time, the horizontal movement trajectory of the laser rangefinder 4 is perpendicular to the rotation center of the radial gate 2. When combined with the formula for calculation, the vertical displacement can be directly mapped, eliminating the geometric error caused by angle deviation in traditional single-point measurement.

[0030] Furthermore, it also includes a solar panel 5, which is fixedly connected to the dam surface 3 through a plurality of support rods 13. The electric slide 9 is located below the solar panel 5, and the solar panel 5 is connected to the battery 16 and the controller 15 in sequence through the charging module 14. The solar panel 5 and the battery 16 provide energy support for the measurement system, so that the system can operate in an environment without external power supply, which is particularly suitable for remote areas or wild environments. In addition, the solar panel 5 protects the electric slide 9 from rain, thereby extending the service life of the electric slide 9. The charging module 14 stores the electrical energy generated by the solar panel 5 in the battery 16. The battery 16 provides stable power support for the entire measurement system.

[0031] Furthermore, the controller 15 includes a 4G wireless communication module 17, and the controller 15 is connected to the user terminal 18 via the wireless communication module 17. Through the wireless communication module 17, the controller 15 can transmit the measurement data to the user terminal 18 (such as a computer) in real time. The computer calculates the opening H1 of the radial gate 2 according to the above formula. The user can remotely monitor the measurement process and obtain data, which improves the convenience and flexibility of operation.

[0032] Furthermore, the user terminal 18 is a computer, which makes it easy for users to use existing computer equipment to process and analyze data, thereby improving the user-friendliness of the system.

[0033] Furthermore, the laser rangefinder 4 measures the vertical rise H2 by, after the radial gate 2 is fully opened, the electric slide 9 drives the laser rangefinder 4 to translate. During translation, the laser rangefinder transmits real-time data detected by the laser rangefinder to the user terminal 18 via the wireless communication module 17. The user terminal 18 then selects the minimum value H3 and calculates the vertical rise H2, where H2 = C3 - H3, where C3 is the distance from the upper edge of the radial gate 2 to the laser rangefinder when the radial gate 2 is fully closed. This is because the minimum value measured by the laser rangefinder 4 during translation corresponds to the vertical rise of the upper edge of the radial gate 2. The controller 15 then transmits the data to the user terminal 18 (e.g., a computer) via the wireless communication module 17. The user end 18 uses the obtained vertical rising height H2, combined with the geometric parameters of the radial gate 2 (such as the height C1 of the rotation center from the bottom sill 1), the height C2 of the upper edge of the door leaf from the bottom sill 1 when fully closed, and the arc radius R of the arc water retaining panel, and substitutes them into the formula to calculate the opening H1 of the radial gate 2.

[0034] In addition, a temperature compensation module can be built into the controller 15 to correct the measured value according to the real-time temperature data of the laser rangefinder 4. The correction formula is: H2 ， =H2*(1+k*ΔT); Where: H2 is the original measurement value, k is the temperature coefficient of the laser rangefinder 4 (unit: °C -1 ), ΔT is the difference between the current temperature and the calibration temperature.

[0035] The working principle of the present invention is that the motion trajectory of the radial gate 2 is an arc, and there is a geometric relationship between its opening and the vertical rise height. By measuring the vertical rise height H2, the correction value H2 is calculated. ， Finally, combined with the geometric parameters of the radial gate 2 (such as C1, C2, C3, R), the actual opening H1 of the radial gate 2 can be calculated using the combined relationship of trigonometric functions and inverse trigonometric functions.

[0036] Electric slide 9 and laser rangefinder 4: Electric slide 9 provides translational motion for laser rangefinder 4, ensuring it can measure across the entire range of motion of radial gate 2. Laser rangefinder 4 measures the distance between the top edge of radial gate 2 and the rangefinder in real time and transmits the data to controller 15.

[0037] Controller 15 and photoelectric switch 11: Controller 15 receives signals from photoelectric switch 11 to determine the position of the slider of electric slide 9, thereby controlling the range and speed of motion of electric slide 9. Controller 15 also processes the received measurement data, screening out the minimum value H3 and calculating the vertical rise height H2.

[0038] Wireless communication module 17: The controller 15 transmits the measurement data to the user terminal 18 (such as a computer) in real time via the wireless communication module 17. The user terminal 18 can further process and analyze the data to calculate the opening H1 of the radial gate 2.

[0039] Through the detailed description of the above working process and principles, it can be seen that the present invention has significant technical advantages and innovations in the field of radial gate 2 opening measurement, can effectively solve the problems existing in the existing technology, and provide strong technical support for the efficient operation of water conservancy and hydropower projects and the rational use of water resources.

[0040] The contents described in the embodiments of this specification are merely an enumeration of the implementation forms of the inventive concept. The scope of protection of the present invention should not be regarded as limited to the specific forms described in the embodiments. The scope of protection of the present invention also extends to equivalent technical means that can be conceived by those skilled in the art based on the inventive concept.

Claims

1. A method for measuring the opening of a radial gate, characterized by: The following steps are included: S1: Measure the vertical rising height H2 of the upper edge of the radial gate after the radial gate is opened; S2: Calculate the radial gate opening H1 according to the following formula using the measured vertical rise height H2; H1=C1-sin(arcsin(C1 / R)-arcsin((H2+C2-C1) / R)-arcsin((C2-C1) / R))*R; Where: C1 is the height from the rotation center of the radial gate to the bottom sill, C2 is the height from the upper edge of the gate leaf to the bottom sill when the radial gate is fully closed, and R is the arc radius of the curved water retaining panel of the radial gate.

2. A method for measuring the opening of a radial gate according to claim 1, characterized in that: The vertical rise H2 is measured by a total station, a laser rangefinder, a tape measure or a rope of known length.

3. A method for measuring the opening of a radial gate according to claim 2, characterized in that: The vertical rise H2 is measured by a laser rangefinder, which is installed on a translation mechanism. The translation mechanism includes an electric slide installed on the dam surface on one side of the arc gate. A bracket is fixedly connected to the slider in the electric slide, and the laser rangefinder is installed on the bracket.

4. A method for measuring the opening of a radial gate according to claim 2, characterized in that: A boss is provided on the dam surface, and the electric slide is arranged on the boss.

5. A method for measuring the opening of a radial gate according to claim 3 or 4, characterized in that: It also includes a controller, a photoelectric switch is installed at each end of the guide rail in the electric slide, and a contact piece is installed on the slider in the electric slide. The contact piece is used to trigger the photoelectric switch. The laser rangefinder and the photoelectric switch are connected to the controller input end, and the electric slide is connected to the controller output end.

6. A method for measuring the opening of a radial gate according to claim 5, characterized in that: It also includes a solar panel, which is fixedly connected to the dam surface through multiple support rods. The electric slide is located below the solar panel, and the solar panel is connected to the battery and the controller in sequence through a charging module.

7. A method for measuring the opening of a radial gate according to claim 5, characterized in that: It also includes a wireless communication module, and the controller is connected to the user end via the wireless communication module.

8. A method for measuring the opening of a radial gate according to claim 7, characterized in that: The user terminal is a computer.

9. A method for measuring the opening of a radial gate according to claim 7, characterized in that: The method for measuring the vertical rise height H2 with a laser rangefinder includes: after the radial gate is opened, the electric slide drives the laser rangefinder to move horizontally. During the translation process, the laser rangefinder transmits the detected data to the user end in real time through the wireless communication module. The user end selects the minimum value H3, and finally calculates the vertical rise height H2, H2=C3-H3, where C3 is the distance between the upper edge of the door leaf and the laser rangefinder when the radial gate is fully closed.

10. A method for measuring the opening of a radial gate according to claim 9, characterized in that: The controller has a built-in temperature compensation module for correcting the measured value H2 according to the real-time temperature data of the laser rangefinder. ， , the correction formula is: H2 ， =H2*(1+k*ΔT); Where: H2 is the original measurement value, k is the temperature coefficient of the laser rangefinder (unit: ℃ -1 ), ΔT is the difference between the current temperature and the calibration temperature.

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