Small capacity battery powered pneumatic flap control device and method

Abstract

The application discloses a small-capacity battery one-time endurance power supply pneumatic flap control device and method. The application forms a critical working time window power supply through precise control of the flap closing / opening critical working time window energy-saving mode, greatly reduces the standby power supply working time of the equipment and its useless standby power consumption; through precise control of the flap closing / opening critical working pressure energy-saving mode, the working pressure of the pneumatic flap closing / opening is greatly reduced, and its useless pressurization power consumption is greatly reduced. The application can greatly reduce the useless power consumption of the equipment, realize the limit micro-power consumption work of the pneumatic flap, the annual power consumption is less than 10 VAh / year, the one-time endurance working time of the battery is more than 10 years, the battery is free from replacement and charging maintenance for a lifetime, the installation, use and maintenance are very simple, the low-cost large-scale popularization and application are realized, and the sewage discharge and waterlogging drainage control of the urban drainage network terminal pneumatic flap can be effectively implemented.

Description

Technical Field

[0001] This invention relates to the field of energy-saving, environmental protection and disaster reduction applications in urban drainage pipe network sewage discharge and waterlogging control, and particularly to a pneumatic flap gate control device and method powered by a small-capacity battery for continuous operation. Background Technology

[0002] Intelligent flap gate control devices, capable of intercepting sewage in dry weather and draining floodwater in rainy weather, are key equipment in urban drainage systems. However, existing intelligent flap gate systems for sewage interception in urban drainage networks (hydraulic and electric flap gates) face challenges. Those powered by public power systems are difficult to install in most locations and incur high labor costs. Those powered by solar cells are unstable, affected by day / night cycles, seasons, climate, and geographical conditions, resulting in intermittent power supply, short self-powered runtime, and high costs, hindering widespread adoption. While intelligent pneumatic flap gates powered solely by batteries require no construction or power connection, making installation convenient, they still suffer from high power consumption during downtime, short battery life (<1 year), and frequent manual battery replacement and charging, making maintenance difficult and costly, thus preventing large-scale adoption. Therefore, achieving pneumatic flap gate control with ultra-long single-use battery life for small-capacity batteries, ensuring "lifetime" battery maintenance without replacement or charging, and reducing costs to enable large-scale application of pneumatic flap gates has become a critical technical bottleneck that the urban drainage industry urgently needs to address.

[0003] A combined sewer overflow control device (CN202021970826.8): Utilizes an electric power assembly to actively control the overflow of the flap valve. The power supply unit includes a solar panel and solar cells, with the solar cells connected to an external charging port, allowing for simultaneous power supply from both an external power source and solar energy.

[0004] Automatic control flap gate system (CN202222527394.9): Employs a hydraulic flap gate for automatic opening and closing to prevent sewage from flowing back into drain pipes or ditches. Powered by solar panels and batteries; the batteries have charging ports. However, this system is unstable, limited and affected by natural conditions such as day / night cycles, seasons, climate, and geographical location. Power supply is intermittent, self-powered operation has a short battery life, and the high cost limits its widespread application.

[0005] A smart device for treating combined sewer overflow systems (CN201922048871.1): This device uses a motor to automatically open and close flap gates. It requires external public power supply, making construction difficult, installation in most locations is impractical, and labor costs are high. Summary of the Invention

[0006] The main objective of this invention is to overcome the shortcomings and deficiencies of existing technologies and provide a pneumatic flap gate control device and method powered by a small-capacity battery on a single charge. It achieves precise control of the flap gate's closing / opening critical working time window energy-saving mode and the flap gate's closing / opening critical working air pressure energy-saving mode, minimizing useless power consumption and achieving extremely low power consumption operation of the pneumatic flap gate, with an annual power consumption of <10VAh / year (using a low-cost DC12V / 16.8Ah lithium battery). The small-capacity battery provides a single charge for over 10 years. The battery requires no replacement or charging maintenance for its entire lifespan, and installation, use, and maintenance are all very simple, enabling low-cost, large-scale widespread application and effectively implementing sewage discharge and flood drainage control at the terminal of urban drainage pipe networks.

[0007] The objective of this invention is achieved by at least one of the following technical solutions.

[0008] A pneumatic flap gate control device powered by a small-capacity battery for continuous operation includes a pneumatic flap gate, a window water level sensor, a flap gate position sensor, an air pressure sensor, an intelligent controller, and a lithium battery.

[0009] The pneumatic flap gate includes a flap gate and a pneumatic robotic arm. The flap gate is fixedly installed at the end of the drainage pipe network. The pneumatic robotic arm is connected to the flap gate and drives the flap gate to rotate around its top pivot, so that the flap gate has an upward opening and a downward closing state.

[0010] The water level sensor includes an upper limit water level gauge and a lower limit water level gauge for waterlogging. Both gauges employ a three-stage reed pulse switch, displaying three positions: upper, middle, and lower. These positions allow for non-contact detection of the upper and lower limit water levels. When the water level is in the middle position, it enters the lower or upper limit water level range, and the reed switch is activated. When the water level is in the upper or lower position, it leaves the lower or upper limit water level range, and the reed switch is deactivated. A lower or upper limit water level signal is then sent to the intelligent controller.

[0011] The flap door position sensor includes a flap door open position sensor and a flap door closed position sensor. The flap door open position sensor and the flap door closed position sensor use normally open magnetic reed switches, which are installed at the open position and the closed position of the pneumatic flap door, respectively. They perform non-contact detection on whether the pneumatic flap door has reached the open position and the closed position, and send signals to the intelligent controller.

[0012] A pressure sensor is installed on the pneumatic flap door to detect the working air pressure of the pneumatic flap door and send the detected air pressure signal to the intelligent controller;

[0013] The intelligent controller is connected to the pneumatic flap gate, the upper limit window water level gauge (for waterlogging), the lower limit window water level gauge (for waterlogging), the flap gate opening position sensor, the flap gate closing position sensor, the air pressure sensor, and the lithium battery, respectively. It controls the opening and closing of the pneumatic flap gate and the power supply switch of the lithium battery according to the received signals.

[0014] The lithium battery connects to the upper and lower limit water level gauges (for waterlogging). When the reed switch in either the upper or lower limit water level gauge is on, the lithium battery powers the machine and supplies power to all components. When the reed switch is off, the lithium battery powers off and stops supplying power to all components. The lithium battery is also connected to an intelligent controller. When powered on, it controls the supply of power to all components. When the pneumatic flap door reaches the open or closed position, the lithium battery controls the power cut-off to all components.

[0015] Furthermore, the lithium battery employs a precise control method within the critical working time window of the flap gate's closing / opening, as follows: When the water level is at the middle position of either the upper or lower limit window water level gauge (for flooding), it enters the lower or upper limit window water level range. The reed switch of either the upper or lower limit window water level gauge is activated, energizing the lithium battery and supplying power to all components of the machine. While the lithium battery is energized, it is controlled by an intelligent controller to maintain power supply to all components. When the pneumatic flap gate reaches the open or closed position, the lithium battery, controlled by the intelligent controller, cuts off power to all components, minimizing the equipment's idle standby power consumption and idle standby operating time.

[0016] Furthermore, the intelligent controller employs a precise multivariate function model of the critical working pressure for flap door closing / opening to calculate and dynamically and automatically control the critical working pressure for closing / opening the pneumatic flap door under different operating conditions; this greatly reduces excessively high working pressure for closing / opening the pneumatic flap door and its unnecessary pressurization power consumption.

[0017] The precise multivariate model of the critical working pressure for flap valve closing / opening uses flap valve operating parameters as multidimensional feature variables, including flap valve diameter D, cylinder diameter R, flap valve weight G, and flap valve water level difference H.

[0018] Furthermore, in the intelligent controller, based on the principle of force balance, a precise multivariate functional model of the critical working pressure for flap valve closing / opening is constructed. Sample sets of the training group and the test group are collected, and the precise multivariate functional model of the critical working pressure for flap valve closing / opening is trained and tested. Through the 10-fold cross-validation method, the hyperparameters are optimized by traversing through the parameters, and the precise multivariate functional model formulas of the critical working pressure for flap valve closing P1 and the critical working pressure for flap valve opening P2 are constructed.

[0019] Furthermore, in the intelligent controller, based on the precise multivariate function model formulas for the critical working pressure P1 for closing the flap and the precise multivariate function model formulas for the critical working pressure P2 for opening the flap, the intelligent controller dynamically calculates the critical working pressure P1 for closing the flap and the critical working pressure P2 for opening the flap.

[0020] When the pneumatic flap gate is in operation, the air pressure sensor detects the working air pressure of the pneumatic flap gate and sends an air pressure signal to the intelligent controller. The intelligent controller controls the pneumatic flap gate to pressurize to the critical working air pressure P1 for flap gate closure, and then stops pressurizing.

[0021] When the pneumatic flap gate is in operation, the air pressure sensor detects the working air pressure of the pneumatic flap gate and sends an air pressure signal to the intelligent controller. The intelligent controller controls the pneumatic flap gate to pressurize to the critical working air pressure P2 for flap gate opening, and then stops pressurizing.

[0022] Furthermore, the precise formula for the multivariate function of the critical working pressure P1 for flap gate closure is as follows:

[0023] P1=K1*(D 2 *H) / R 2

[0024] Wherein, K1 is the first coefficient, R is the diameter of the pneumatic robotic arm cylinder (cm), D is the diameter of the flap gate (cm), and H is the distance between the center of the flap gate and the lower limit of the floodwater level (m); the training group and the test group sample sets are collected, and the hyperparameters are optimized through 10-fold cross-validation to determine the first coefficient K1.

[0025] Furthermore, the precise formula for the multivariate function of the critical working pressure P2 for flap gate opening is as follows:

[0026] P2 = K2 * G / R 2

[0027] Wherein, K2 is the second coefficient, R is the cylinder diameter of the pneumatic robotic arm (cm), and G is the weight of the flapping gate (kg); the training group and the test group sample sets are collected, and the hyperparameters are optimized through 10-fold cross-validation to determine the second coefficient K2.

[0028] A method for controlling a pneumatic flap gate powered by a small-capacity battery on a single charge includes the following steps:

[0029] S1. Precise control of the energy-saving mode during the critical working time window for flap gate closing / opening: When the water level drops and passes through the middle and lower sections of the lower limit window water level gauge in sequence, or when the water level rises and passes through the middle and upper sections of the upper limit window water level gauge in sequence, the magnetic reed switch is turned on and off in sequence, the power supply is turned on and off in sequence, and the equipment is automatically turned on and off in sequence; when the power is on, the power supply maintains the power supply to the equipment and immediately controls the pneumatic flap gate to close to intercept sewage / prevent sewage discharge, or controls the pneumatic flap gate to open to drain water / prevent waterlogging. When the flap gate reaches the closed / open position, the intelligent controller immediately controls the equipment to cut off the power; forming a critical working time window for flap gate closing / opening power supply, greatly reducing the equipment's standby power supply time and its useless standby power consumption;

[0030] S2. Precise control of the critical working pressure for flap door closing / opening: Using flap door operating parameters (flap door diameter D, cylinder diameter R, flap door weight G, flap door water level difference H) as multidimensional feature variables, a precise multivariate function model of the critical working pressure for flap door closing / opening is constructed. This model accurately calculates and dynamically and automatically controls the critical working pressure for closing / opening the pneumatic flap door under different operating conditions, greatly reducing excessively high working pressure for closing / opening the pneumatic flap door and its useless pressurization power consumption.

[0031] Furthermore, in step S1, the precise control of the energy-saving mode within the critical working time window for the flap door closing / opening is as follows:

[0032] S11, Flap Gate Closing Critical Working Time Window W1 Energy-Saving Mode Precise Control: When the water level drops and passes through the lower limit window water level gauge interruption and lower section in sequence, its magnetic reed switch is turned on and off in sequence, the power supply is turned on and off in sequence, and the whole machine is automatically turned on and off in sequence; when the power is on, the intelligent controller controls the lithium battery to maintain power supply and immediately controls the pneumatic flap gate to close to intercept sewage / prevent sewage discharge; when the flap gate closing position sensor detects that the flap gate has reached the closed position, the intelligent controller immediately controls the lithium battery to cut off power, establishing the flap gate closing critical working time window W1 energy-saving mode;

[0033] S12, W2 energy-saving mode precise control of the flap gate opening critical working time window: When the water level rises and passes through the interruption and upper section of the upper limit window water level gauge in sequence, its magnetic reed switch is turned on and off in sequence, the power supply is turned on and off in sequence, and the equipment is automatically turned on and off in sequence; when the power is on, the intelligent controller controls the lithium battery to maintain power supply and immediately controls the pneumatic flap gate to open for drainage / prevention of waterlogging; when the flap gate closing position sensor detects that the flap gate has reached the closed position, the intelligent controller immediately controls the lithium battery to cut off power, establishing the W2 energy-saving mode of the flap gate opening critical working time window; minimizing the equipment's standby power supply time and its useless standby power consumption.

[0034] Furthermore, in step S2, the precise control of the flap door closing / opening critical working pressure energy-saving mode is as follows:

[0035] S21. Construct a precise multivariate functional model of the critical working pressure for flap valve closing / opening: Using the working conditions of the pneumatic flap valve (flap valve diameter D, cylinder diameter R, flap valve weight G, and flap valve water level difference H) as multidimensional feature variables, construct a precise multivariate functional model of the critical working pressure for flap valve closing / opening based on the principle of force balance; collect training and test sample sets, train and test the functional model, and use the 10-fold cross-validation method to iterate and optimize the hyperparameters, constructing the precise multivariate functional model formulas for the critical working pressure P1 for flap valve closing and P2 for flap valve opening;

[0036] S22. Precise control of the critical working air pressure P1 for flap door closure in energy-saving mode: According to the above model formula, the intelligent controller dynamically and accurately calculates the critical working air pressure P1 for flap door closure; when the pneumatic flap door is closing, the air pressure sensor detects the working air pressure of the pneumatic flap door and sends an air pressure signal to the intelligent controller. The intelligent controller precisely controls the pneumatic flap door to pressurize to the critical working air pressure P1 for flap door closure, and then stops pressurizing.

[0037] S23. Precise control of the critical working air pressure P2 for flap door opening in energy-saving mode: According to the above model formula, the intelligent controller dynamically and accurately calculates the critical working air pressure P2 for flap door opening; when the pneumatic flap door is open, the air pressure sensor detects the working air pressure of the pneumatic flap door and sends an air pressure signal to the intelligent controller. The intelligent controller precisely controls the pneumatic flap door to pressurize to the critical working air pressure P2 for flap door opening, and then stops pressurizing.

[0038] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0039] The content of this invention has not been described in any relevant literature, and compared with the prior art, it has outstanding substantive features, significant progress, and beneficial technical, economic and social effects.

[0040] This invention proposes a pneumatic flap gate control device and method powered by a small-capacity battery on a single charge. First, precise control of the flap gate's closing / opening critical operating time window using an energy-saving mode greatly reduces the device's standby power consumption and its wasted standby power. Second, precise control of the flap gate's closing / opening critical operating air pressure using an energy-saving mode greatly reduces excessively high operating air pressure and its wasted pneumatic power consumption. This minimizes wasted power consumption, achieving extremely low-power operation of the pneumatic flap gate. The small-capacity battery (DC12V / 16.8Ah) provides a single-charge operating time of over 10 years, requiring no battery replacement or charging maintenance for its entire lifespan. Installation, use, and maintenance are all very simple, enabling low-cost, large-scale widespread application and effectively controlling sewage discharge and urban flooding at the terminal of urban drainage networks. If adopted nationwide, it could reduce sewage discharge by approximately 60 billion cubic meters and carbon emissions by 3.6 million tons annually, and effectively improve urban flooding control.

[0041] 2. This invention proposes a pneumatic flap gate control device and method with a small-capacity battery providing continuous power on a single charge. A new technology and method for precise control of the flap gate's closing / opening critical working time window energy-saving mode is established, achieving extremely low power consumption during standby power supply. This involves designing multifunctional (flood-prone) lower limit window water level gauges and upper limit window water level gauge sensors, etc. Each water level gauge uses a three-segment magnetic reed pulse switch to form a critical working time window for power supply, precisely controlling the equipment's standby power supply time and its useless standby power consumption. Power is supplied only during the flap gate's closing / opening working period, with no extra power supply standby time. While ensuring the flap gate's closing / opening function, this overcomes the problem of large useless standby power consumption caused by long standby working time. The annual standby power consumption is achieved at 2VAh / year, significantly reducing the equipment's standby power supply time and its useless standby power consumption by approximately 96% compared to existing pneumatic flap gates.

[0042] 3. This invention proposes an intelligent device and method for controlling sewage leakage at the terminal of drainage pipe networks. It establishes a new technology for precise control of the critical working pressure energy-saving mode of flap gate closing / opening, achieving extremely low power consumption of the pneumatic flap gate's working pressure. Using the principle of force balance, and with flap gate operating parameters (flap gate diameter D, cylinder diameter R, flap gate weight G, and flap gate water level difference H) as multidimensional characteristic variables, a precise multivariate function model of the critical working pressure for flap gate closing / opening is designed / constructed. Through a 10-fold cross-validation method, the hyperparameters are optimized through iteration, and the critical working pressure for closing / opening of the pneumatic flap gate under different operating conditions is accurately calculated and dynamically and automatically controlled. Pressurization stops only at the critical working pressure, with no excess working pressure. While ensuring the flap gate's closing / opening function, it overcomes the problem of high wasted power consumption caused by excessively high working pressure. The annual working pressure power consumption is achieved at 1.99 VAh / year, significantly reducing the excessively high working pressure and wasted pressurization power consumption of existing pneumatic flap gates by approximately 50%.

[0043] 4. This invention proposes a pneumatic flap gate control device and method powered by a small-capacity battery on a single charge. Combining precise control of the flap gate's closing / opening critical working time window energy-saving mode and the flap gate's closing / opening critical working air pressure energy-saving mode, it achieves extremely low power consumption operation of the pneumatic flap gate, minimizing useless power consumption and demonstrating excellent energy-saving performance: experimental data shows that the annual total power consumption of a single unit is only about 3.99 Vah / year; compared to the existing pneumatic flap gate's annual total power consumption of about 60 Vah / year, this represents a 93% reduction in annual power consumption and extends the battery's single-charge operating time by 16.1 times. (Low-cost lithium battery DC12V / 16.8Ah) The small-capacity lithium battery has a single-charge operating time of >10 years, requiring no replacement or charging maintenance for its entire lifespan. Therefore, installation, use, and maintenance are very simple, enabling low-cost, large-scale widespread adoption. Through application, it solves a key technical bottleneck problem in the urban drainage industry and has the potential for widespread application. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the structure of a pneumatic flap gate control device powered by a small-capacity battery for continuous operation in an embodiment of the present invention.

[0045] Figure 2 This is a flowchart illustrating the precise control process of the energy-saving mode within the critical working time window for the flap door closing / opening in an embodiment of the present invention.

[0046] Figure 3 This is a schematic diagram of the three-segment magnetic reed pulse switch characteristics of the lower limit window water level gauge and upper limit window water level gauge sensors in an embodiment of the present invention (for waterlogging).

[0047] Figure 4This is a flowchart illustrating the precise control process of the flap door closing / opening critical working air pressure energy-saving mode in an embodiment of the present invention.

[0048] Figure 5 This is a flowchart illustrating the steps involved in constructing a precise multivariate model of the critical working pressure for flap gate closure / opening in an embodiment of the present invention.

[0049] Figure 6 This is a flowchart illustrating the steps of calculating the critical working pressure multivariate function of the flap gate in an embodiment of the present invention. Detailed Implementation

[0050] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0051] Example:

[0052] A pneumatic flap gate control device powered by a small-capacity battery on a single charge, such as Figure 1 As shown, it includes a pneumatic flap gate 1, a window water level sensor 2, a flap gate position sensor 3, an air pressure sensor 4, an intelligent controller 5, and a lithium battery 6.

[0053] The pneumatic flap gate 1 includes a flap gate and a pneumatic mechanical arm. The flap gate is fixedly installed at the end of the drainage pipe network. The pneumatic mechanical arm is connected to the flap gate and drives the flap gate to rotate around its top pivot, so that the flap gate has an upward opening and a downward closing state.

[0054] The window water level sensor 2 includes an upper limit window water level gauge and a lower limit window water level gauge. The upper limit window water level gauge and the lower limit window water level gauge adopt a three-stage magnetic reed pulse switch, which has three water level switch states: upper stage, middle stage and lower stage. They respectively perform non-contact detection of the upper limit window water level and the lower limit window water level. When the water level is in the middle stage of the water level gauge, it enters the lower limit window water level range or the upper limit window water level range, and its magnetic reed switch is turned on. When the water level is in the upper stage or the lower stage of the water level gauge, it leaves the lower limit window water level range or the upper limit window water level range, and its magnetic reed switch is turned off. It then sends the lower limit water level signal or the upper limit water level signal to the intelligent controller 5.

[0055] The flap door position sensor 3 includes a flap door open position sensor and a flap door close position sensor. The flap door open position sensor and the flap door close position sensor adopt normally open magnetic reed switches and are respectively installed at the open position and the closed position of the pneumatic flap door 1. They perform non-contact detection on whether the pneumatic flap door 1 has reached the open position and the closed position, and send signals to the intelligent controller 5.

[0056] The air pressure sensor 4 is installed on the pneumatic flap door 1 to detect the working air pressure of the pneumatic flap door 1 and send the detected air pressure signal to the intelligent controller 5.

[0057] The intelligent controller 5 is connected to the pneumatic flap gate 1, the water level gauge of the upper limit window of the flooding, the water level gauge of the lower limit window of the flooding, the flap gate opening position sensor, the flap gate closing position sensor, the air pressure sensor 4 and the lithium battery 6 respectively. It controls the opening and closing of the pneumatic flap gate 1 and the power supply switch of the lithium battery 6 according to the received signals.

[0058] The lithium battery 6 is connected to the upper limit water level gauge and the lower limit water level gauge. When the reed switch in the upper limit water level gauge or the lower limit water level gauge is turned on, the lithium battery 6 is powered on and supplies power to all components of the machine. When the reed switch in the upper limit water level gauge or the lower limit water level gauge is turned off, the lithium battery 6 is de-powered and stops supplying power to all components of the machine. The lithium battery 6 is connected to the intelligent controller 5. When powered on, it is controlled to maintain power supply to all components of the machine. When the pneumatic flap door reaches the open or closed position, the lithium battery 6 is controlled to de-power all components of the machine.

[0059] Furthermore, in lithium battery 6, a precise control method using a flap gate closing / opening critical working time window energy-saving mode is adopted, as detailed below:

[0060] When the water level is in the middle of the upper or lower limit water level gauge, it enters the lower or upper limit water level range. The reed switch of the upper or lower limit water level gauge is activated, and the lithium battery 6 is powered on, supplying power to all components of the machine. When the lithium battery 6 is powered on, it is controlled by the intelligent controller 5 to maintain power supply to all components of the machine. When the pneumatic flap gate 1 reaches the open or closed position while the lithium battery 6 is powered on, the lithium battery 6 is controlled by the intelligent controller 5 to cut off power to all components of the machine, thus minimizing the equipment's idle standby power supply time and idle standby power consumption.

[0061] Furthermore, in the intelligent controller 5, a precise multivariate function model of the critical working pressure for closing / opening the flap door is adopted to calculate and dynamically and automatically control the critical working pressure for closing / opening the pneumatic flap door 1 under different working conditions; this greatly reduces the excessively high working pressure for closing / opening the pneumatic flap door 1 and its useless pressurization power consumption.

[0062] The precise multivariate model of the critical working pressure for flap valve closing / opening uses flap valve operating parameters as multidimensional feature variables, including flap valve diameter D, cylinder diameter R, flap valve weight G, and flap valve water level difference H.

[0063] Furthermore, in the intelligent controller 5, based on the principle of force balance, a precise multivariate function model of the critical working pressure for flap door closing / opening is constructed. Sample sets of the training group and the test group are collected, and the precise multivariate function model of the critical working pressure for flap door closing / opening is trained and tested. Through the 10-fold cross-validation method, the hyperparameters are traversed and optimized to construct the precise multivariate function model formulas of the critical working pressure for flap door closing P1 and the critical working pressure for flap door opening P2.

[0064] Furthermore, in the intelligent controller 5, based on the precise multivariate function model formulas for the critical working pressure P1 for closing the flap and the precise multivariate function model formulas for the critical working pressure P2 for opening the flap, the intelligent controller 5 dynamically calculates the critical working pressure P1 for closing the flap and the critical working pressure P2 for opening the flap.

[0065] When the pneumatic flap gate 1 is closed, the air pressure sensor 4 detects the working air pressure of the pneumatic flap gate 1 and sends an air pressure signal to the intelligent controller 5. The intelligent controller 5 controls the pneumatic flap gate 1 to pressurize to the critical working air pressure P1 for flap gate closure, and then stops pressurizing.

[0066] When the pneumatic flap gate 1 is opened, the air pressure sensor 4 detects the working air pressure of the pneumatic flap gate 1 and sends an air pressure signal to the intelligent controller 5. The intelligent controller 5 controls the pneumatic flap gate 1 to pressurize to the critical working air pressure P2 for flap gate opening, and then stops pressurizing.

[0067] Furthermore, the precise formula for the multivariate function of the critical working pressure P1 for flap gate closure is as follows:

[0068] P1=K1*(D 2 *H) / R 2

[0069] Wherein, K1 is the first coefficient, R is the diameter of the pneumatic robotic arm cylinder (cm), D is the diameter of the flap gate (cm), and H is the distance between the center of the flap gate and the lower limit of the floodwater level (m); the training group and the test group sample sets are collected, and the hyperparameters are optimized through 10-fold cross-validation to determine the first coefficient K1.

[0070] Furthermore, the precise formula for the multivariate function of the critical working pressure P2 for flap gate opening is as follows:

[0071] P2 = K2 * G / R 2

[0072] Wherein, K2 is the second coefficient, R is the cylinder diameter of the pneumatic robotic arm (cm), and G is the weight of the flapping gate (kg); the training group and the test group sample sets are collected, and the hyperparameters are optimized through 10-fold cross-validation to determine the second coefficient K2.

[0073] In one embodiment, the pneumatic manipulator cylinder diameter R = 3.2 (cm), the flap gate diameter D = 32 (cm), the flap gate weight G = 4 (kg), and the distance between the center of the flap gate and the lower limit of the floodwater level H = 1 (m). Training and testing sample sets were collected, and the model was trained and tested using 10-fold cross-validation. The hyperparameters were optimized through a process of iteration, with coefficients of determination K1 = 0.025 and K2 = 1.27.

[0074] The critical working pressure for the flap valve to close is P1 = 0.025 (D). 2 *H) / R 2 =2.5kg / cm 2 =2.5 Bar;

[0075] The critical working pressure for the flap gate to open is P2 = 1.27 G / R. 2 =0.5kg / cm 2 =0.5 Bar.

[0076] A method for controlling a pneumatic flap gate powered by a small-capacity battery on a single charge includes the following steps:

[0077] S1. Precise control of the energy-saving mode during the critical working time window for flap gate closure / opening: When the water level drops and passes through the middle and lower sections of the lower limit window water level gauge in sequence, or when the water level rises and passes through the middle and upper sections of the upper limit window water level gauge in sequence, the magnetic reed switch is sequentially turned on and off, the power supply is sequentially turned on and off, and the equipment is sequentially automatically turned on and off; when powered on, the power supply maintains the equipment's power supply and immediately controls the pneumatic flap gate 1 to close to intercept sewage / prevent sewage discharge, or controls the pneumatic flap gate 1 to open to drain / prevent waterlogging. When the flap gate reaches the closed / open position, the intelligent controller 5 immediately controls the equipment to cut off the power; forming a critical working time window for flap gate closure / opening power supply, greatly reducing the equipment's standby power supply time and its useless standby power consumption, such as... Figure 2 As shown, the details are as follows:

[0078] S11, Door closing critical working time window W1 energy-saving mode precise control: such as Figure 3 As shown, when the water level drops and passes through the lower limit window water level gauge interruption and the lower section in sequence, its reed switch is turned on and off in sequence, the power supply is turned on and off in sequence, and the whole machine is automatically turned on and off in sequence. When the power is on, the intelligent controller 5 controls the lithium battery 6 to maintain power supply and immediately controls the pneumatic flap door 1 to close to intercept sewage / prevent sewage discharge. When the flap door closing position sensor detects that the flap door has reached the closed position, the intelligent controller 5 immediately controls the lithium battery 6 to cut off power and establishes the flap door closing critical working time window W1 energy-saving mode.

[0079] S12, W2 energy-saving mode precise control of the critical working time window for flap opening: such as... Figure 3As shown, when the water level rises and passes through the interruption and upper section of the upper limit window water level gauge, its reed switch is turned on and off in sequence, the power supply is turned on and off in sequence, and the equipment is automatically turned on and off in sequence. When the power is on, the intelligent controller 5 controls the lithium battery 6 to maintain power supply and immediately controls the pneumatic flap gate 1 to open for drainage / prevention of waterlogging. When the flap gate closing position sensor detects that the flap gate has reached the closed position, the intelligent controller 5 immediately controls the lithium battery 6 to cut off power, establishing the flap gate opening critical working time window W2 energy-saving mode; minimizing the equipment's standby power supply working time and its useless standby power consumption.

[0080] S2. Precise control of the critical working pressure for flap valve closing / opening in an energy-saving mode: Using flap valve operating parameters (flap valve diameter D, cylinder diameter R, flap valve weight G, flap valve water level difference H) as multidimensional feature variables, a precise multivariate function model of the critical working pressure for flap valve closing / opening is constructed. This model accurately calculates and dynamically and automatically controls the critical working pressure for closing / opening of pneumatic flap valve 1 under different operating conditions, greatly reducing excessively high working pressure for closing / opening pneumatic flap valve 1 and its unnecessary pressurization power consumption. Figure 4 As shown, the details are as follows:

[0081] S21. Construct a precise multivariate functional model of the critical working pressure for flap valve closure / opening: such as... Figure 5 As shown, using the working conditions of the pneumatic flap valve 1 (flap valve diameter D, cylinder diameter R, flap valve weight G, and flap valve water level difference H) as multidimensional feature variables, a precise multivariate functional model of the critical working pressure for flap valve closing / opening is constructed based on the principle of force balance. Training and test sample sets are collected, and the functional model is trained and tested. Through 10-fold cross-validation, the hyperparameters are optimized to construct precise multivariate functional model formulas for the critical working pressure P1 for flap valve closing and P2 for flap valve opening.

[0082] S22, Flap door closing critical working air pressure P1 energy-saving mode precise control: such as Figure 6 As shown, according to the above model formula, the intelligent controller 5 dynamically and accurately calculates the critical working air pressure P1 for closing the flap door; when the pneumatic flap door 1 is closing, the air pressure sensor 4 detects the working air pressure of the pneumatic flap door 1 and sends an air pressure signal to the intelligent controller 5. The intelligent controller 5 accurately controls the pneumatic flap door 1 to pressurize to the critical working air pressure P1 for closing the flap door, and then stops pressurizing.

[0083] S23, P2 energy-saving mode precise control of the critical working pressure for flap door opening: such as... Figure 6 As shown, according to the above model formula, the intelligent controller 5 dynamically and accurately calculates the critical working air pressure P2 for opening the flap door; when the pneumatic flap door 1 is opened, the air pressure sensor detects the working air pressure of the pneumatic flap door 1 and sends an air pressure signal to the intelligent controller 5. The intelligent controller 5 accurately controls the pneumatic flap door 1 to pressurize to the critical working air pressure P2 for opening the flap door, and then stops pressurizing.

[0084] In one embodiment, as shown in Table 1, the total annual power consumption of a single unit is only about 3.99 Vah / year;

[0085] Table 1: Power consumption of this device and method (power supply during critical operating time window) / power consumption (20 floods per year * 5 hours)

[0086]

[0087] In one embodiment, as shown in Table 2, compared to the existing pneumatic flap gate's annual total power consumption of approximately 64 VAh / year (Table 2), the annual power consumption is reduced by approximately 94%, and the battery's single-use operating time is extended by approximately 16.1 times. (Low-cost lithium battery DC12V / 16.8Ah) The small-capacity lithium battery has a single-use operating time of >10 years, and the battery requires no replacement or charging maintenance for its "lifetime".

[0088] Table 2: Pneumatic flap gate (intermittent power supply / constant working air pressure) / Power consumption (20 floods per year * 5 hours)

[0089]

[0090]

[0091] The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention shall be considered equivalent substitutions and shall be included within the protection scope of the present invention.

Claims

1. A pneumatic flap gate control device powered by a small-capacity battery on a single charge, characterized in that, It includes a pneumatic flap gate, a window water level sensor, a flap gate position sensor, a pressure sensor, an intelligent controller, and a lithium battery; The pneumatic flap gate includes a flap gate and a pneumatic robotic arm. The flap gate is fixedly installed at the end of the drainage pipe network. The pneumatic robotic arm is connected to the flap gate and drives the flap gate to rotate around its top pivot, so that the flap gate has an upward opening and a downward closing state. The window level sensor includes an upper limit window level gauge and a lower limit window level gauge. Both the upper and lower limit window level gauges employ a three-stage reed pulse switch, exhibiting three switch states: upper, middle, and lower. These positions allow for non-contact detection of the upper and lower limit window levels, respectively. When the water level is in the middle position of the level gauge, entering the lower or upper limit window level range, the reed switch is activated. When the water level is in the upper or lower position, leaving the lower or upper limit window level range, the reed switch is deactivated, and a lower or upper limit water level signal is sent to the intelligent controller. The flap door position sensor includes a flap door open position sensor and a flap door closed position sensor. The flap door open position sensor and the flap door closed position sensor use normally open magnetic reed switches, which are installed at the open position and the closed position of the pneumatic flap door, respectively. They perform non-contact detection on whether the pneumatic flap door has reached the open position and the closed position, and send signals to the intelligent controller. A pressure sensor is installed on the pneumatic flap door to detect the working air pressure of the pneumatic flap door and send the detected air pressure signal to the intelligent controller; The intelligent controller is connected to the pneumatic flap gate, the upper limit window water level gauge, the lower limit window water level gauge, the flap gate opening position sensor, the flap gate closing position sensor, the air pressure sensor, and the lithium battery, respectively. It controls the opening and closing of the pneumatic flap gate and the power supply switch of the lithium battery according to the received signals. The lithium battery connects to the upper and lower limit water level gauges. When the reed switch in either the upper or lower limit water level gauge is turned on, the lithium battery powers the entire machine and supplies power to all components. When the reed switch in either the upper or lower limit water level gauge is turned off, the lithium battery is de-energized and stops supplying power to all components. The lithium battery is also connected to the intelligent controller. When powered on, it controls the maintenance of power supply to all components. When the pneumatic flap door reaches the open or closed position, the lithium battery controls the de-energization of all components.

2. The pneumatic flap gate control device powered by a small-capacity battery for continuous operation according to claim 1, characterized in that, In the power-on and power-off control of lithium batteries, a precise control is achieved using an energy-saving mode within the critical working time window of the flap gate closing / opening, as detailed below: When the water level is in the middle of the upper or lower limit window water level gauge, it enters the lower or upper limit window water level range. The reed switch of the upper or lower limit window water level gauge is activated, and the lithium battery is powered, supplying power to all components of the machine. When the lithium battery is powered, it is controlled by the intelligent controller to maintain power supply to all components of the machine. When the pneumatic flap gate reaches the open or closed position while the lithium battery is powered, the lithium battery is controlled by the intelligent controller to cut off power to all components of the machine, minimizing the equipment's idle standby power supply time and idle standby power consumption.

3. The pneumatic flap gate control device powered by a small-capacity battery on a single charge as described in claim 1, characterized in that, The intelligent controller employs a precise multivariate function model of the critical working pressure for flap door closing / opening to calculate and dynamically and automatically control the critical working pressure for closing / opening of the pneumatic flap door under different operating conditions; this greatly reduces excessively high working pressure for closing / opening the pneumatic flap door and its unnecessary pressurization power consumption. The precise multivariate functional model of the critical working pressure for flap valve closing / opening uses flap valve operating parameters as multidimensional feature variables, including flap valve diameter D, cylinder diameter R, flap valve weight G, and flap valve water level difference H. Based on the principle of force balance, a precise multivariate functional model of the critical working pressure for flap valve closing / opening is constructed. Training and testing sample sets are collected, and the precise multivariate functional model of the critical working pressure for flap valve closing / opening is trained and tested. Through 10-fold cross-validation, the hyperparameters are optimized to construct the precise multivariate functional model formulas for the critical working pressure P1 for flap valve closing and P2 for flap valve opening.

4. The pneumatic flap gate control device powered by a small-capacity battery for continuous operation according to claim 3, characterized in that, In the intelligent controller, based on the precise multivariate function model formulas for the critical working pressure P1 for closing the flap and the precise multivariate function model formulas for the critical working pressure P2 for opening the flap, the intelligent controller dynamically calculates the critical working pressure P1 for closing the flap and the critical working pressure P2 for opening the flap. When the pneumatic flap gate is in operation, the air pressure sensor detects the working air pressure of the pneumatic flap gate and sends an air pressure signal to the intelligent controller. The intelligent controller controls the pneumatic flap gate to pressurize to the critical working air pressure P1 for flap gate closure, and then stops pressurizing. When the pneumatic flap gate is in operation, the air pressure sensor detects the working air pressure of the pneumatic flap gate and sends an air pressure signal to the intelligent controller. The intelligent controller controls the pneumatic flap gate to pressurize to the critical working air pressure P2 for flap gate opening, and then stops pressurizing.

5. A pneumatic flap gate control device powered by a small-capacity battery for continuous operation according to claim 3, characterized in that, The precise formula for the multivariate function model of the critical working pressure P1 for flap valve closure is as follows: Wherein, K1 is the first coefficient, R is the diameter of the pneumatic robotic arm cylinder (cm), D is the diameter of the flap gate (cm), and H is the distance between the center of the flap gate and the lower limit of the water level of the flooding (m); the training group and the test group sample sets are collected, and the hyperparameters are optimized through the 10-fold cross-validation method to determine the first coefficient K1.

6. The pneumatic flap gate control device powered by a small-capacity battery for continuous operation according to claim 3, characterized in that, The precise formula for the multivariate function of the critical working pressure P2 for flap gate opening is as follows: Wherein, K2 is the second coefficient, R is the cylinder diameter of the pneumatic robotic arm (cm), and G is the weight of the flapping gate (kg); training and test group sample sets are collected, and the hyperparameters are optimized through 10-fold cross-validation to determine the second coefficient K2.

7. A control method for a pneumatic flap gate control device with a small-capacity battery providing continuous power as described in claim 1, characterized in that, Includes the following steps: S1. Precise control of the energy-saving mode during the critical working time window for flap gate closing / opening: When the water level drops and passes through the middle and lower sections of the lower limit window water level gauge in sequence, or when the water level rises and passes through the middle and upper sections of the upper limit window water level gauge in sequence, the magnetic reed switch is turned on and off in sequence, the power supply is turned on and off in sequence, and the equipment is automatically turned on and off in sequence; when the power is on, the power supply maintains the power supply to the equipment and immediately controls the pneumatic flap gate to close to intercept sewage / prevent sewage discharge, or controls the pneumatic flap gate to open to drain water / prevent waterlogging. When the flap gate reaches the closed / open position, the intelligent controller immediately controls the equipment to cut off the power; forming a critical working time window for flap gate closing / opening power supply, greatly reducing the equipment's standby power supply time and its useless standby power consumption; S2. Precise Control of Critical Working Pressure for Flap Door Closure / Opening in Energy-Saving Mode: Using flap door operating parameters as multidimensional feature variables, a precise multivariate function model of the critical working pressure for flap door closure / opening is constructed. This model accurately calculates and dynamically and automatically controls the critical working pressure for closure / opening of the pneumatic flap door under different operating conditions, greatly reducing excessively high working pressure and unnecessary pressurization power consumption. The construction of the precise multivariate function model of the critical working pressure for flap door closure / opening is as follows: Using the operating conditions of the pneumatic flap door as multidimensional feature variables, a precise multivariate function model of the critical working pressure for flap door closure / opening is constructed based on the principle of force balance. Training and testing sample sets are collected, and the model is trained and tested. Through 10-fold cross-validation, the hyperparameters are optimized to construct the precise multivariate function model formulas for the critical working pressure P1 for flap door closure and P2 for flap door opening.

8. The control method according to claim 7, characterized in that, In step S1, the energy-saving mode precisely controls the critical working time window for the flap door to close / open, as follows: S11, Flap Gate Closing Critical Working Time Window W1 Energy-Saving Mode Precise Control: When the water level drops and passes through the lower limit window water level gauge interruption and lower section in sequence, its magnetic reed switch is turned on and off in sequence, the power supply is turned on and off in sequence, and the whole machine is automatically turned on and off in sequence; when the power is on, the intelligent controller controls the lithium battery to maintain power supply and immediately controls the pneumatic flap gate to close to intercept sewage / prevent sewage discharge; when the flap gate closing position sensor detects that the flap gate has reached the closed position, the intelligent controller immediately controls the lithium battery to cut off power, establishing the flap gate closing critical working time window W1 energy-saving mode; S12, W2 energy-saving mode precise control of the flap gate opening critical working time window: When the water level rises and passes through the interruption and upper section of the upper limit window water level gauge in sequence, its magnetic reed switch is turned on and off in sequence, the power supply is turned on and off in sequence, and the equipment is automatically turned on and off in sequence; when the power is on, the intelligent controller controls the lithium battery to maintain power supply and immediately controls the pneumatic flap gate to open for drainage / prevention of waterlogging; when the flap gate closing position sensor detects that the flap gate has reached the closed position, the intelligent controller immediately controls the lithium battery to cut off power, establishing the W2 energy-saving mode of the flap gate opening critical working time window; minimizing the equipment's standby power supply time and its useless standby power consumption.

9. The control method according to claim 7, characterized in that, In step S2, the critical working pressure energy-saving mode for closing / opening the flap gate is precisely controlled, as follows: S21. Construct a precise multivariate functional model of the critical working pressure for flap valve closing / opening: Using the working conditions of the pneumatic flap valve as multidimensional feature variables, construct a precise multivariate functional model of the critical working pressure for flap valve closing / opening based on the principle of force balance; collect training and test sample sets, train and test the model, and use the 10-fold cross-validation method to iterate and optimize the hyperparameters, constructing the precise multivariate functional model formulas for the critical working pressure P1 for flap valve closing and P2 for flap valve opening; S22. Precise control of the critical working air pressure P1 for flap door closure in energy-saving mode: According to the above model formula, the intelligent controller dynamically and accurately calculates the critical working air pressure P1 for flap door closure; when the pneumatic flap door is closing, the air pressure sensor detects the working air pressure of the pneumatic flap door and sends an air pressure signal to the intelligent controller. The intelligent controller precisely controls the pneumatic flap door to pressurize to the critical working air pressure P1 for flap door closure, and then stops pressurizing. S23. Precise control of the critical working air pressure P2 for flap door opening in energy-saving mode: According to the above model formula, the intelligent controller dynamically and accurately calculates the critical working air pressure P2 for flap door opening; when the pneumatic flap door is open, the air pressure sensor detects the working air pressure of the pneumatic flap door and sends an air pressure signal to the intelligent controller. The intelligent controller precisely controls the pneumatic flap door to pressurize to the critical working air pressure P2 for flap door opening, and then stops pressurizing.

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