A gate opening and closing operation state cooperative sensing and safety early warning device and method

Abstract

The application provides a gate opening and closing operation state cooperative sensing and safety early warning device and method, and belongs to the technical field of gate opening and closing machine operation state monitoring and safety detection. The device and method can at least partially solve the problems of the lack of cooperative sensing ability and safety early warning function in the existing gate opening and closing process operation state detection, the dependence of traditional methods on the gate opening and closing machine opening degree sensor or manual on-site measurement, the inability to reflect the vertical deviation of the left and right sides of the gate, and the low detection efficiency and the existence of operation safety risks. The application comprises a displacement detection assembly, a wireless transmission assembly and a data processing assembly. The displacement detection assembly comprises a magnetic mounting seat, a linear guide rail, a sliding block, a metering wheel and a rotary encoder. The application realizes the cooperative sensing and safety early warning of the gate opening and closing process operation state by symmetrically installing the displacement detection assembly on the left and right sides of the gate, collecting the displacement of the left and right sides in the gate opening and closing process in real time and calculating the difference, and is suitable for various hydraulic steel gates.

Description

Technical Field

[0001] This invention belongs to the field of gate hoist operation status monitoring and safety detection technology, specifically relating to a gate opening and closing operation status collaborative sensing and safety early warning device and method. Background Technology

[0002] As a key piece of equipment for controlling water flow in water conservancy and hydropower projects, the safe operation of gates directly affects project benefits and downstream safety. Real-time sensing and safety early warning of the gate's opening and closing status are crucial means to ensure safe gate operation. Balance, as a key indicator reflecting the gate's operational status, refers to the vertical deviation of the left and right ends of the gate during opening and closing, reflecting the control state of the hoist during the gate's operation. The balance of the gate's opening and closing process reflects its operational posture. If the gate is a double-lifting-point gate, asynchronous force on the left and right lifting points of the hoist will result in significant left-right imbalance, leading to structural deformation or damage, and affecting the safe operation of the hydraulic steel gate structure. Therefore, coordinated sensing and safety early warning of the gate's opening and closing status are of great significance for timely detection of gate operational anomalies and prevention of safety accidents.

[0003] To ensure the safe operation of the steel gates and hoists in water conservancy and hydropower projects, regular safety inspections are necessary. According to relevant technical regulations, these inspections must include gate operation posture monitoring and synchronization checks of dual-point hoists. However, existing inspection methods are insufficient for comprehensive monitoring of the gate's opening and closing status, and lack an effective safety early warning mechanism.

[0004] Currently, the detection of the gate's opening and closing status relies on gate hoist opening degree sensors or manual on-site measurement using measuring tools. Gate hoist opening degree sensors typically use wire-type displacement sensors or magnetostrictive displacement sensors, while manual on-site measurement tools generally use measuring tapes, levels, or leveling rods. These traditional detection methods suffer from single-point detection and isolated information, failing to achieve coordinated perception of the gate's opening and closing status.

[0005] However, the existing measurement methods mentioned above have the following defects and shortcomings:

[0006] Lack of collaborative sensing capability: Currently, there is no dedicated collaborative sensing device for gate opening and closing process operation status for on-site gate detection. There is no easy-to-install and disassemble adjustable collaborative sensing and detection device for gate opening and closing process operation status. Existing equipment cannot achieve synchronous acquisition and collaborative analysis of multi-point data.

[0007] Limitations of single-point detection: If the gate is a single-lifting-point gate, the opening sensor built into its hoist can only detect the opening of a single lifting point and cannot reflect the vertical deviation of the left and right ends of the gate; if the gate is a double-lifting-point gate, the two opening sensors built into its hoist can only reflect the opening of the two lifting points of the gate. The two lifting points are still a large distance away from the left and right ends, and the opening deviation of the two lifting points cannot reflect the vertical deviation of the left and right ends of the gate; if the gate is an arc-shaped gate equipped with a hydraulic hoist, its hydraulic cylinder is installed near the arc gate hinge seat and uses the bottom lifting lug of the gate to pull it at an angle, and its opening sensor cannot reflect the vertical deviation of the left and right ends of the gate.

[0008] Data transmission and fusion difficulties: The opening sensor signal of the hoist at the engineering site can only reflect the opening information of the gate during the opening and closing process. It cannot reflect the coordinated information of the operating status on both sides of the gate during the opening and closing process. In addition, the opening signal in the hoist control cabinet is inconvenient to transmit to the outside. On-site testing personnel can only record the readings through the hoist control panel, which is inefficient and has a high error rate, making it difficult to achieve real-time fusion analysis of multi-source data.

[0009] Lack of dynamic full-process monitoring: On-site manual measurement of the vertical deviation at both ends of the gate requires the gate to be suspended at a designated position before measurement, which cannot record the entire dynamic process of the gate opening and closing, resulting in low detection efficiency and high operational risks.

[0010] Lack of safety early warning function: Current technical means cannot generate process curves of gate opening and deviation at the left and right ends, cannot display the gate operation status at each moment in real time, and cannot automatically determine the safe allowable range and over-limit range of the gate operation status during operation and provide alarm prompts, making it difficult to achieve timely early warning and safety protection for abnormal gate operation.

[0011] Therefore, there is an urgent need for a gate opening and closing operation status collaborative sensing and safety early warning detection device that can directly measure the actual travel of the gate body, is easy to install and has accurate measurement capabilities, so as to realize multi-point collaborative sensing, real-time data fusion analysis and safety early warning of the entire gate opening and closing process. Summary of the Invention

[0012] The present invention aims to solve at least one of the technical problems existing in the prior art, and to provide a gate opening and closing operation status collaborative sensing and safety early warning device and method.

[0013] This invention provides a gate opening and closing operation status collaborative sensing and safety early warning device, comprising:

[0014] A displacement detection assembly is disposed on the surface of the gate, including a mounting base, a guide rail disposed on the mounting base, a slider that slides with the guide rail, a measuring wheel connected to the slider, and a rotary encoder connected to the measuring wheel. The measuring wheel is used to contact the side wall of the gate slot so as to rotate with the relative movement of the gate and the gate slot during the opening and closing of the gate.

[0015] A wireless transmission component includes a wireless signal transmitting module electrically connected to the rotary encoder and a wireless signal receiving module communicatively connected to the wireless signal transmitting module. The wireless signal transmitting module is disposed on the mounting base for wirelessly transmitting the displacement signal output by the rotary encoder to the wireless signal receiving module.

[0016] The data processing component includes a data acquisition module connected to the wireless signal receiving module and a terminal device connected to the data acquisition module. The terminal device is used to receive and process the displacement data acquired by the displacement detection component to determine the balance of the gate opening and closing process.

[0017] Furthermore, there are two displacement detection components, which are respectively set at symmetrical positions on the left and right sides of the gate. The terminal device is used to calculate the relative displacement based on the displacement data of the left and right sides of the gate.

[0018] Furthermore, the mounting base is a magnetic mounting base, and a magnetic on / off control switch is provided on the magnetic mounting base. The magnetic on / off control switch is used to control the magnetic on / off of the magnetic force of the magnetic mounting base, so as to realize the adsorption, fixation and disassembly of the magnetic mounting base on the gate surface.

[0019] Furthermore, the upper surface of the magnetic mounting base is provided with a plurality of threaded holes, which are used to connect and fix the guide rail and the wireless signal transmitting module;

[0020] The magnetic mounting base is provided with threaded through holes at its four corners, and an adjusting stud is provided in the threaded through holes. The adjusting stud is used to adjust the posture of the magnetic mounting base when it is attached to the surface of the gate.

[0021] Furthermore, a rotary encoder connecting plate is provided between the slider and the rotary encoder, and both the rotary encoder and the meter wheel are mounted on the rotary encoder connecting plate, which is fixedly connected to the slider;

[0022] The rotary encoder is a hollow rotary encoder, and the shaft of the meter wheel passes through the central hole of the hollow rotary encoder and is connected to the hollow rotary encoder.

[0023] Furthermore, the terminal device is equipped with a data analysis module, which is used to store time axis information, the absolute displacement of the left side of the gate and the absolute displacement of the right side of the gate in real time, and to calculate the relative displacement of the left and right sides of the gate and the gate opening amount based on the absolute displacement of the left and right sides of the gate.

[0024] A method for collaborative sensing and safety early warning of gate opening and closing status, implemented by the gate opening and closing status collaborative sensing and safety early warning device, includes the following steps:

[0025] S1: Adjust the gate to the fully closed state, select a measuring point position on the gate, and install the displacement detection component at the measuring point position;

[0026] S2: Adjust the position of the guide rail and the slider so that the meter wheel contacts the side wall of the door slot;

[0027] S3: Establish a communication connection between the wireless signal transmitting module and the wireless signal receiving module, and connect the data acquisition module to the terminal device;

[0028] S4: Perform opening and closing operations on the gate. During the opening and closing process of the gate, the measuring wheel rotates with the relative movement of the gate and the gate slot. The rotary encoder converts the rotation amount of the measuring wheel into a displacement signal.

[0029] S5: The terminal device receives and stores the displacement data of the gate, and determines the balance of the gate opening and closing process based on the displacement data.

[0030] Further, in step S1, measuring points are selected at symmetrical positions on the left and right sides of the gate. The measuring point positions are selected in the top flat and smooth area of ​​the side beam or top beam structure in the upper region of the gate, and the two displacement detection components are respectively installed at the measuring point positions.

[0031] In step S5, the terminal device calculates the relative displacement of the left and right sides of the gate based on the absolute displacement of the left side of the gate and the absolute displacement of the right side of the gate. The relative displacement of the left and right sides of the gate is the quantitative index of the balance of the gate opening and closing process.

[0032] Furthermore, in step S5, the terminal device is also used to calculate the gate opening amount based on the average of the absolute displacement on the left side of the gate and the absolute displacement on the right side of the gate, and generate a balance curve with the gate opening amount as the horizontal axis and the relative displacement on the left and right sides of the gate as the vertical axis.

[0033] Furthermore, the method also includes an alarm step:

[0034] An alarm threshold for the relative displacement between the left and right sides of the gate is preset in the terminal device;

[0035] During the opening and closing of the gate, when the terminal device detects that the relative displacement between the left and right sides of the gate exceeds the alarm threshold, the terminal device issues an alarm prompt.

[0036] The beneficial effects of this invention are as follows:

[0037] This invention achieves collaborative sensing and automated detection of the gate's opening and closing process status by setting up a displacement detection component consisting of a mounting base, guide rail, slider, meter wheel, and rotary encoder, along with a wireless transmission component and a data processing component. This fills the gap in the current market where there is no dedicated collaborative sensing and detection device for the gate's opening and closing process status. By symmetrically installing displacement detection components on the left and right sides of the gate, synchronous acquisition and collaborative analysis of data from multiple measurement points are achieved, effectively solving the limitations of traditional single-point detection.

[0038] The mounting base of this invention can be a magnetic mounting base with magnetic on / off control function, which facilitates the installation and disassembly of the device at the testing site. The adjusting studs set at the four corners of the magnetic mounting base can adjust the posture of the mounting base when it is adsorbed on the gate surface, so that it can adapt to the application scenarios of various hydraulic steel gates such as planar gates, arc gates, and flap gates.

[0039] This invention uses wireless signal transmission to enable remote operation and recording during the testing process, avoiding the safety risks of on-site measurement and greatly improving the efficiency of testing operations. At the same time, wireless transmission technology enables real-time aggregation of data from multiple testing points, providing a data foundation for collaborative perception of operational status.

[0040] The terminal device of this invention can store time axis information and displacement data in real time, and automatically calculate the relative displacement of the left and right sides of the gate and the gate opening amount, generate a variety of operating status curves, realize the visualization of the operating status of the gate opening and closing process, and achieve comprehensive perception of the gate operating status through multi-parameter fusion analysis.

[0041] This invention features a safety early warning function. It can preset alarm thresholds for the relative displacement between the left and right sides of the gate. When the detected relative displacement exceeds the alarm threshold, an alarm is automatically issued, providing timely warning of abnormal gate operation and effectively ensuring the safety of the testing process and gate operation. By setting safe allowable ranges and over-limit ranges, it enables graded early warning and risk assessment of the gate's operating status.

[0042] In addition to its wide application in the field of on-site inspection technology for hydraulic steel gates and hoists in water conservancy and hydropower projects, this invention can also be applied to collaborative perception and safety early warning detection of the operating status of other dynamic systems. Attached Figure Description

[0043] Figure 1 This is a three-dimensional structural schematic diagram of a displacement detection component according to a specific embodiment of the present invention;

[0044] Figure 2 This is a front view of a displacement detection component according to a specific embodiment of the present invention;

[0045] Figure 3 This is a left view of a displacement detection component according to a specific embodiment of the present invention;

[0046] Figure 4 This is a system schematic diagram of a gate opening and closing operation status collaborative sensing and safety early warning device according to a specific embodiment of the present invention;

[0047] Figure 5 This is a flowchart of a gate opening and closing operation status collaborative sensing and safety early warning method according to a specific embodiment of the present invention.

[0048] The components include: 1. Guide rail; 2. First slider; 3. Meter wheel; 4. Wireless signal transmitting module; 5. Mounting base; 6. Magnetic on / off control switch; 7. First adjusting stud; 8. Threaded hole; 9. Second slider; 10. Rotary encoder connecting plate; 11. Second adjusting stud; 12. Rotary encoder; 13. Wireless signal receiving module; 14. Data acquisition module; 15. USB transmission cable; and 16. Terminal device. Detailed Implementation

[0049] To make the objectives, technical solutions, and beneficial effects of this application clearer, the following detailed description, in conjunction with the accompanying drawings and specific embodiments, further illustrates this application. It should be understood that the specific embodiments described in this specification are merely for explaining this application and are not intended to limit it.

[0050] like Figures 1 to 4 As shown in the figure, a gate opening and closing operation status collaborative sensing and safety early warning device provided by a specific embodiment of the present invention includes:

[0051] The displacement detection assembly includes a mounting base 5 installed on the gate surface, a miniature linear guide rail 1 mounted on the mounting base 5, a first slider 2 and a second slider 9 slidably engaged with the miniature linear guide rail 1, a measuring wheel 3 connected to the sliders, and a rotary encoder 12 coaxially connected to the measuring wheel 3. The measuring wheel 3 is used to contact the side wall of the gate slot so as to rotate with the relative movement between the gate and the gate slot during the opening and closing of the gate. The wireless transmission assembly includes a wireless signal transmitting module 4 electrically connected to the rotary encoder 12 and a wireless signal receiving module 13 communicatively connected to the wireless signal transmitting module 4. The wireless signal transmitting module 4 is mounted on the mounting base 5. The system includes a displacement signal output by the rotary encoder 12 to a wireless signal receiving module 13; and a data processing component, including a data acquisition module 14 connected to the wireless signal receiving module 13 and a terminal device 16 connected to the data acquisition module 14. The terminal device 16 is used to receive and process the displacement data transmitted by the data acquisition module 14. There are two displacement detection components and two wireless signal transmitting modules 4, which are installed symmetrically on the left and right sides of the gate. The terminal device 16 is used to calculate the relative displacement between the left and right sides based on the displacement data of the left and right sides of the gate to determine the balance of the gate opening and closing process.

[0052] Specifically, the displacement detection component is the core detection unit of this invention, responsible for converting the relative displacement between the gate and the gate slot into a measurable electrical signal. In this embodiment, the mounting base 5 is a magnetic mounting base, employing a permanent magnet structure. It is fixed to the steel surface of the gate by magnetic adsorption, eliminating the need for drilling or welding on the gate body and achieving non-destructive installation. The magnetic mounting base is designed as a 70mm x 70mm square structure with an adsorption force of not less than 500N, ensuring reliable fixation during gate opening and closing.

[0053] Furthermore, a miniature linear guide 1 is mounted on the upper surface of the mounting base 5. Its length is designed to be 200mm, and M4 threaded holes with a spacing of 25mm are evenly arranged on the guide rail for connection with the threaded holes 8 on the mounting base 5. The first slider 2 and the second slider 9 slide in engagement with the miniature linear guide 1, allowing linear movement along the guide rail direction. This is used to adjust the distance between the measuring wheel 3 and the gate slot sidewall to accommodate different gap dimensions between the gate and the gate slot.

[0054] Furthermore, the measuring wheel 3 is a conversion element that converts the gate's displacement into rotational motion. The measuring wheel 3 adopts a rubber-coated roller structure with an outer diameter of 50mm and a wheel surface width of 10mm. The rubber material has a friction coefficient of not less than 0.6, enabling reliable frictional contact with the gate slot sidewall. When the gate opens and closes, the measuring wheel 3 rotates along with the relative movement of the gate and the gate slot, and the rotation arc length of the measuring wheel 3 is consistent with the relative displacement of the gate and the gate slot.

[0055] Based on the above basic implementation method, the mounting base 5 is a magnetic mounting base, and a magnetic on / off control switch 6 is provided on the magnetic mounting base. The magnetic on / off control switch 6 is used to control the magnetic on / off of the magnetic force of the magnetic mounting base, so as to realize the adsorption, fixation and disassembly of the magnetic mounting base on the gate surface.

[0056] Specifically, the magnetic on / off control switch 6 adopts a mechanical magnetic circuit switch structure. By rotating or flipping the switch handle, the arrangement direction of the internal permanent magnets is changed, thereby realizing the on / off control of the magnetic force. When the magnetic on / off control switch 6 is in the open state, a strong magnetic force is generated at the bottom of the magnetic mounting base, which can firmly adhere to the steel surface of the gate; when the magnetic on / off control switch 6 is in the closed state, the magnetic circuit is cut off, and the magnetic mounting base can be easily removed from the gate surface. This design makes the installation and disassembly of the detection device convenient, avoiding the disadvantage of drilling holes in the gate body required by traditional bolt fixing methods.

[0057] In one specific embodiment, the upper surface of the magnetic mounting base is provided with a plurality of threaded holes 8, which are used to connect and fix the miniature linear guide rail 1 and the wireless signal transmitting module 4; threaded through holes are provided at the four corners of the magnetic mounting base, and a first adjusting stud 7 and a second adjusting stud 11 are provided in the threaded through holes. The adjusting studs are used to adjust the posture of the magnetic mounting base when it is adsorbed on the gate surface.

[0058] In this embodiment, the upper surface of the magnetic mounting base is provided with nine M4 threaded holes 8, arranged in a 3x3 matrix with a hole spacing of 25mm. The appropriate threaded hole 8 can be selected for connection and fixation according to the installation position requirements of the miniature linear guide 1 and the wireless signal transmitting module 4. This multi-hole design provides flexible installation options and can accommodate guides of different sizes and models.

[0059] Furthermore, the threaded through holes and adjusting studs at the four corners of the magnetic mounting base are used to adjust the mounting posture of the magnetic mounting base on the gate surface. When there are local unevenness or tilt on the gate surface, the extension length of the adjusting studs at the four corners can be adjusted to keep the magnetic mounting base horizontal or parallel to the gate's direction of movement. For flat gates, the adjusting studs make the magnetic mounting base parallel to the gate's operating plane; for curved gates, the adjusting studs make the magnetic mounting base tangent to the curved gate surface, thereby ensuring the contact effect between the meter wheel 3 and the gate slot sidewall.

[0060] In another specific embodiment, a rotary encoder connecting plate 10 is provided between the slider and the rotary encoder 12. The rotary encoder 12 and the metering wheel 3 are both mounted on the rotary encoder connecting plate 10, and the rotary encoder connecting plate 10 is fixedly connected to the slider.

[0061] Specifically, the rotary encoder connecting plate 10 is made of aluminum alloy with a thickness of 5mm, providing sufficient rigidity and strength. One end of the rotary encoder connecting plate 10 has a mounting hole for mates with the slider, and the other end has mounting holes for mounting the rotary encoder 12 and the measuring wheel 3. The rotary encoder 12 and the measuring wheel 3 are coaxially mounted on the rotary encoder connecting plate 10, with the shaft of the measuring wheel 3 passing through the central hole of the rotary encoder 12, allowing the rotation of the measuring wheel 3 to be directly transmitted to the rotary encoder 12. This integrated design is compact and facilitates installation and use in confined spaces between gates and gate slots.

[0062] In one specific implementation, the rotary encoder 12 is a hollow rotary encoder, and the shaft of the meter wheel 3 passes through the central hole of the hollow rotary encoder and is coaxially connected to the hollow rotary encoder.

[0063] In this embodiment, the hollow rotary encoder is an incremental encoder with a resolution of 1000 pulses per revolution and a detection accuracy of ±0.1mm, which is far superior to the ±1mm measurement accuracy of the gate opening sensor and the ±1mm accuracy of manual on-site measurement. The diameter of the center hole of the hollow rotary encoder is 10mm, and the diameter of the shaft of the measuring wheel 3 is 8mm. The shaft and the center hole are fitted with a keyway to ensure synchronous rotation between the measuring wheel 3 and the hollow rotary encoder.

[0064] Furthermore, the hollow rotary encoder has an internal detection-end microcontroller. The timer of the detection-end microcontroller is set to input capture mode, which can receive signals from the incremental quadrature encoder. When the hollow rotary encoder rotates, it generates quadrature signal pulses. The detection-end microcontroller determines the position, rotation direction, and rotation speed of the hollow rotary encoder based on the quadrature signal pulses, and converts the position information into displacement data and outputs it to the wireless signal transmission module 4.

[0065] In another specific embodiment, the wireless transmission component is used to wirelessly transmit the displacement signal collected by the displacement detection component to the data processing component. The wireless signal transmitting module 4 is electrically connected to the rotary encoder 12, mounted on the mounting base 5, and moves with the gate. The wireless signal receiving module 13 is fixedly mounted on the operating platform or in the control room, and maintains a communication connection with the wireless signal transmitting module 4.

[0066] Specifically, the wireless signal transmitting module 4 and the wireless signal receiving module 13 use 2.4GHz frequency band wireless communication modules with a communication distance of not less than 100m, which can meet the communication distance requirements of most hydraulic gate detection sites. The wireless signal transmitting module 4 has a built-in microcontroller, which sends data to the wireless signal transmitting module 4 in transmitting mode. The data is transmitted to the wireless channel according to the preset configuration. At the receiving end, the wireless signal receiving module 13 listens to the same wireless channel. When it detects a data packet that matches its configuration, it receives the data packet and stores it in the receiving buffer. Subsequently, the microcontroller at the receiving end reads the data from the buffer of the wireless signal receiving module 13 and transmits the data to the data acquisition module 14 via USB to serial port.

[0067] In one specific embodiment, the terminal device 16 is equipped with a data analysis module. The data analysis module is used to store time axis information, the absolute displacement of the left side of the gate and the absolute displacement of the right side of the gate in real time, and to calculate the relative displacement of the left and right sides of the gate and the gate opening amount based on the absolute displacement of the left and right sides of the gate.

[0068] In this embodiment, the terminal device 16 is a computer equipped with a data analysis module. The data acquisition module 14 transmits the acquired signal data to the terminal device 16 via a USB transmission cable 15. The data analysis module receives and stores displacement data from the two displacement detection components on the left and right sides of the gate in real time, and records the corresponding time axis information. The data analysis module records the displacement fed back by the meter-counting wheel 3 installed on the left side of the gate as the absolute displacement of the left side of the gate. The displacement fed back by the measuring wheel 3 installed on the right side of the gate is recorded as the absolute displacement on the right side of the gate. .

[0069] Furthermore, the data analysis module performs calculations based on the absolute displacement of the left and right sides of the gate. The difference between the absolute displacements of the left and right sides of the gate yields the relative displacement of the left and right sides of the gate. The calculation formula is as follows:

[0070] ;

[0071] in, This represents the relative displacement between the left and right sides of the gate. This represents the absolute displacement on the left side of the gate. This represents the absolute displacement on the right side of the gate.

[0072] The gate opening is obtained by averaging the absolute displacements on both sides of the gate. The calculation formula is as follows:

[0073] ;

[0074] in, To measure the opening of the gate, This represents the absolute displacement on the left side of the gate. This represents the absolute displacement on the right side of the gate.

[0075] Relative displacement of the left and right sides of the gate This is a quantitative indicator of the balance of the gate opening and closing process. The smaller the value, the more balanced the gate opening and closing process is; the larger the value, the more serious the imbalance between the left and right sides of the gate is.

[0076] Furthermore, the data analysis module also features curve display functionality. The data analysis module can generate curves based on gate opening degrees. The horizontal axis represents the relative displacement between the left and right sides of the gate. The vertical axis represents the opening and balance curve, which visually displays the gate's balance state at different opening positions. The data analysis module can also generate a graph with time as the horizontal axis and the relative displacement between the left and right sides of the gate as the horizontal axis. The curves representing time and balance are plotted on the vertical axis, and the curves representing time and gate opening are plotted on the horizontal axis. The vertical axis represents the time versus opening curve. These various curves reflect the balance of the gate's opening and closing process from different perspectives, providing inspectors with an intuitive data analysis tool.

[0077] In another specific embodiment, the data analysis module also has an alarm function. Inspectors can preset the relative displacement between the left and right sides of the gate in the data analysis module interface. The alarm threshold is the relative displacement between the left and right sides of the gate detected in real time during the opening and closing process. When the preset alarm threshold is exceeded, the data analysis module will issue an audible or visual alarm signal to remind the testing personnel to stop the test or adjust the gate status as appropriate to ensure the safety of the testing process.

[0078] Furthermore, the data analysis module also features interval division and report generation functions. Inspectors can set the safety allowable intervals and over-limit intervals for the gate's operational balance within the data analysis module interface. Based on the set limits, the data analysis module divides the detected opening and balance curves, time and balance curves, and time and opening curves into safe and over-limit intervals, with different intervals displayed using different colors. The data analysis module can also statistically analyze characteristic values ​​such as the start time of the over-limit interval, the gate opening in the over-limit interval, and the maximum relative displacement on both sides of the gate, generating graphical and textual reports for easy archiving and subsequent analysis by inspectors.

[0079] like Figure 5As shown, the present invention also provides a method for collaborative sensing and safety early warning of gate opening and closing operation status. This method is implemented using the aforementioned gate opening and closing operation status collaborative sensing and safety early warning device, and includes the following steps:

[0080] Step S1: Adjust the gate to the fully closed state, select measuring points at symmetrical positions on the left and right sides of the gate, and install the two displacement detection components at the measuring points respectively.

[0081] Specifically, in step S1, the gate is first adjusted to the fully closed state by operating the hoist. Then, symmetrical positions are selected on the left and right sides of the gate as measuring points for the balance test during the gate opening and closing process. The selection of measuring point positions should follow the following principles: the measuring point position should be selected in the upper area of ​​the gate, preferably in the flat and smooth area at the top of the gate side beam or top beam structure; the measuring point position should facilitate the installation of the displacement detection component, and after installation, the measuring wheel 3 can form reliable contact with the side wall of the gate slot; the measuring point positions on the left and right sides should be as symmetrical as possible to ensure the comparability of the test data.

[0082] Further, after selecting the measuring point location, attach the mounting base 5 to the selected measuring point location. For magnetic mounting bases, turn on the magnetic on / off control switch 6 to firmly attach the magnetic mounting base to the gate surface. Adjust the first adjusting stud 7 and the second adjusting stud 11 at the bottom of the magnetic mounting base so that the magnetic mounting base is in a state parallel to the plane of gate operation or tangent to the surface of the arc-shaped gate.

[0083] Step S2: Adjust the position of guide rail 1 and slider so that the meter wheel 3 contacts the side wall of the door slot.

[0084] Specifically, in step S2, the wireless signal transmitting module 4 and the miniature linear guide rail 1 are first installed on the mounting base 5, and the miniature linear guide rail 1 is fixed in the threaded hole 8 on the upper surface of the mounting base 5 with bolts. Then, the rotary encoder connecting plate 10 is connected to the slider, and the rotary encoder 12 and the measuring wheel 3 are installed on the rotary encoder connecting plate 10. The position of the slider along the guide rail 1 is adjusted so that the measuring wheel 3 can smoothly contact the side wall of the door slot. Through the fine-tuning function of the slider, the degree of contact between the measuring wheel 3 and the side wall of the door slot is adjusted to ensure that there is reliable frictional contact between the measuring wheel 3 and the side wall of the door slot without generating excessive compressive force.

[0085] Furthermore, at symmetrical measuring points on the other side of the gate, a second set of displacement detection components is installed using the same method, including mounting base 5, guide rail 1, slider, rotary encoder connecting plate 10, rotary encoder 12, meter wheel 3, and wireless signal transmission module 4.

[0086] Step S3: Establish a communication connection between the wireless signal transmitting module 4 and the wireless signal receiving module 13, and connect the data acquisition module 14 to the terminal device 16.

[0087] Specifically, in step S3, the two wireless signal transmitting modules 4, already installed at the measuring points on both sides of the gate, are connected to the wireless signal receiving module 13 for communication. The wireless signal receiving module 13 transmits data to the data acquisition module 14 via a USB-to-serial converter. The signals acquired by the data acquisition module 14 are transmitted to the terminal device 16 via a USB transmission cable 15. The data analysis module on the terminal device 16 is then turned on to confirm that the data analysis module can normally receive the displacement signals from the displacement detection components on the left and right sides of the gate.

[0088] Step S4: Perform full-stroke opening and closing operation on the gate. During the opening and closing process of the gate, the measuring wheel 3 rotates with the relative movement between the gate and the gate slot. The rotary encoder 12 converts the rotation of the measuring wheel 3 into a displacement signal.

[0089] Specifically, in step S4, the gate is opened and closed in its entirety. The gate opening and closing operation should be smooth and continuous, without any pauses in between. During the full-stroke opening and closing of the gate, the measuring wheel 3 rotates against the side wall of the gate slot, and the arc length of the measuring wheel 3's rotation is consistent with the relative displacement of the gate and the gate slot. The relative displacement of the gate and the gate slot is converted into rotational motion transmitted by the measuring wheel 3 to the rotary encoder 12. The rotary encoder 12 converts the rotational motion into an electrical signal, which is transmitted to the terminal device 16 through the wireless signal transmitting module 4, the wireless signal receiving module 13, and the data acquisition module 14.

[0090] Step S5: Terminal device 16 receives and stores the displacement data of the left and right sides of the gate, and calculates the displacement based on the absolute displacement of the left side of the gate. and the absolute displacement on the right side of the gate Calculate the relative displacement between the left and right sides of the gate. The relative displacement between the left and right sides of the gate This refers to the quantitative indicator of the balance during the opening and closing process of the gate.

[0091] Specifically, in step S5, the data analysis module on the terminal device 16 receives and stores the time axis information and the absolute displacement of the left side of the gate in real time. and the absolute displacement on the right side of the gate The data analysis module uses the formula... Calculate the relative displacement between the left and right sides of the gate. The data analysis module uses the formula... Calculate the gate opening measurement The relative displacement between the left and right sides of the gate. It is a quantitative indicator of the balance of the gate opening and closing process, used to determine whether the gate opening and closing process is balanced.

[0092] Furthermore, in step S5, the terminal device 16 is also used to determine the absolute displacement on the left side of the gate. and the absolute displacement on the right side of the gate Calculate the average value of the gate opening measurement And generate a gate opening degree The horizontal axis represents the relative displacement between the left and right sides of the gate. The vertical axis represents the balance curve. This balance curve visually displays the balance state of the gate at different opening positions, facilitating the analysis of balance changes at different positions during the gate's opening and closing process by inspection personnel.

[0093] Furthermore, the detection method also includes an alarm step: preset the relative displacement of the left and right sides of the gate in the terminal device 16. The alarm threshold; during the gate opening and closing process, when the terminal device 16 detects the relative displacement between the left and right sides of the gate. When the alarm threshold is exceeded, terminal device 16 issues an alarm notification. This alarm function can monitor the balance status in real time during the opening and closing of the gate, and promptly alert the inspection personnel when an abnormality occurs, thus avoiding safety accidents caused by severe gate imbalance.

[0094] In summary, the embodiments disclosed herein have at least the following technical effects:

[0095] This invention achieves collaborative perception and safety warning of the gate's opening and closing process status by setting up a displacement detection component consisting of a mounting base, guide rail, slider, meter wheel and rotary encoder, and cooperating with wireless transmission component and data processing component. It fills the gap in the current market where there is no dedicated collaborative perception and detection device for the gate's opening and closing process status. This device is small in size and portable.

[0096] The mounting base of the present invention can be a magnetic mounting base with a magnetic on / off control function, which facilitates the installation and disassembly of the device at the testing site. The adjusting studs set at the four corners of the magnetic mounting base can adjust the posture of the mounting base when it is adsorbed on the gate surface, so that it can adapt to the application scenarios of various hydraulic steel gates such as planar gates, arc gates, and flap gates.

[0097] This invention uses wireless signal transmission to enable remote operation and recording during the testing process, avoiding the safety risks of on-site measurement by personnel, greatly improving the efficiency of testing operations, and realizing real-time aggregation and collaborative analysis of data from multiple measurement points.

[0098] The hollow rotary encoder used in this invention achieves a detection accuracy of ±0.1mm, which is far superior to the ±1mm measurement accuracy of the gate opening sensor and the ±1mm accuracy of manual on-site measurement, resulting in a significant improvement in detection accuracy.

[0099] The terminal device of the present invention can store time axis information and displacement data in real time, and automatically calculate the relative displacement of the left and right sides of the gate and the gate opening amount, generate a variety of operating status curves, and realize the visualization and collaborative perception of the operating status of the gate opening and closing process.

[0100] This invention has a safety early warning function. It can preset the alarm threshold for the relative displacement between the left and right sides of the gate. When the detected relative displacement exceeds the alarm threshold, an alarm will be automatically issued to realize timely early warning of abnormal gate operation and ensure the safety of the testing process.

[0101] In addition to its wide application in the field of on-site inspection technology for hydraulic steel gates and hoists in water conservancy and hydropower projects, this invention can also be applied to collaborative perception and safety early warning detection of the operating status of other dynamic systems.

[0102] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, and the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A gate opening and closing operation status collaborative sensing and safety early warning device, characterized in that, include: A displacement detection assembly, disposed on the surface of the gate, includes a mounting base, a guide rail disposed on the mounting base, a slider slidably engaged with the guide rail, a counting wheel connected to the slider, and a rotary encoder connected to the counting wheel. The counting wheel is used to contact the side wall of the gate slot so as to rotate with the relative movement of the gate and the gate slot during the opening and closing of the gate. The counting wheel adopts a rubber-coated roller structure, and frictional contact is formed between the counting wheel and the side wall of the gate slot. The rotation arc length of the counting wheel is consistent with the relative displacement of the gate and the gate slot. A rotary encoder connecting plate is provided between the slider and the rotary encoder. The rotary encoder and the measuring wheel are both mounted on the rotary encoder connecting plate, and the rotary encoder connecting plate is fixedly connected to the slider. The rotary encoder is a hollow rotary encoder, and the shaft of the measuring wheel passes through the central hole of the hollow rotary encoder and is connected to the hollow rotary encoder. The mounting base is a magnetic mounting base, which is equipped with a magnetic on / off control switch. The magnetic on / off control switch is used to control the magnetic on / off state of the magnetic mounting base, so as to realize the magnetic mounting base adsorbing and fixing and disassembling on the gate surface. The upper surface of the magnetic mounting base is provided with multiple threaded holes, which are used to connect and fix the guide rail and the wireless signal transmitting module. Threaded through holes are provided at the four corners of the magnetic mounting base, and adjusting studs are provided in the threaded through holes. The adjusting studs are used to adjust the posture of the magnetic mounting base when it is adsorbed on the gate surface to adapt to flat gates, arc gates, or flap gates. The displacement detection components are in the form of two, which are respectively set at symmetrical positions on the left and right sides of the gate; The wireless transmission component includes a wireless signal transmitting module electrically connected to the rotary encoder and a wireless signal receiving module communicatively connected to the wireless signal transmitting module. The wireless signal transmitting module is disposed on the mounting base for wirelessly transmitting the displacement signal output by the rotary encoder to the wireless signal receiving module. as well as The data processing component includes a data acquisition module connected to the wireless signal receiving module and a terminal device connected to the data acquisition module. The terminal device is used to receive and process the displacement data acquired by the displacement detection component to determine the balance of the gate opening and closing process.

2. The gate opening and closing operation status collaborative sensing and safety early warning device according to claim 1, characterized in that, The terminal device is equipped with a data analysis module, which is used to store time axis information, the absolute displacement of the left side of the gate and the absolute displacement of the right side of the gate in real time, and calculate the relative displacement of the left and right sides of the gate and the gate opening amount based on the absolute displacement of the left and right sides of the gate.

3. A method for collaborative sensing and safety early warning of gate opening and closing operation status, characterized in that, The method is implemented using the gate opening and closing operation status collaborative sensing and safety early warning device according to claim 1 or 2, and includes the following steps: S1: Adjust the gate to the fully closed state, select a measuring point position on the gate, and install the displacement detection component at the measuring point position; S2: Adjust the position of the guide rail and the slider so that the meter wheel contacts the side wall of the door slot; S3: Establish a communication connection between the wireless signal transmitting module and the wireless signal receiving module, and connect the data acquisition module to the terminal device; S4: Perform opening and closing operations on the gate. During the opening and closing process of the gate, the measuring wheel rotates with the relative movement of the gate and the gate slot. The rotary encoder converts the rotation amount of the measuring wheel into a displacement signal. S5: The terminal device receives and stores the displacement data of the gate, and determines the balance of the gate opening and closing process based on the displacement data.

4. The gate opening and closing operation status collaborative perception and safety early warning method according to claim 3, characterized in that, In step S1, measuring points are selected at symmetrical positions on the left and right sides of the gate. The measuring point positions are selected in the top flat and smooth area of ​​the side beam or top beam structure in the upper region of the gate. The two displacement detection components are installed at the measuring point positions respectively. In step S5, the terminal device calculates the relative displacement of the left and right sides of the gate based on the absolute displacement of the left side of the gate and the absolute displacement of the right side of the gate. The relative displacement of the left and right sides of the gate is the quantitative index of the balance of the gate opening and closing process.

5. The gate opening and closing operation status collaborative perception and safety early warning method according to claim 4, characterized in that, In step S5, the terminal device is further configured to calculate the gate opening amount based on the average of the absolute displacement on the left side of the gate and the absolute displacement on the right side of the gate, and generate a balance curve with the gate opening amount as the horizontal axis and the relative displacement on the left and right sides of the gate as the vertical axis.

6. The gate opening and closing operation status collaborative perception and safety early warning method according to claim 5, characterized in that, The method also includes an alarm step: An alarm threshold for the relative displacement between the left and right sides of the gate is preset in the terminal device; During the opening and closing of the gate, when the terminal device detects that the relative displacement between the left and right sides of the gate exceeds the alarm threshold, the terminal device issues an alarm prompt.

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