Control method of hydraulic hinge and hydraulic hinge

Abstract

The invention relates to the technical field of hinge control, and discloses a hydraulic hinge control method and a hydraulic hinge thereof.The hydraulic hinge control method specifically comprises the steps that an angle sensor, a pressure sensor and a temperature sensor are arranged in a hydraulic hinge, and the real-time opening and closing angle of the hydraulic hinge, the pressure of a hydraulic pump and the temperature of the hydraulic pump are obtained; the data processor performs de-noising processing by adopting a filtering algorithm; the data processor calculates the current opening and closing state of the hydraulic hinge according to the real-time opening and closing angle of the denoised hydraulic hinge, the pressure of the hydraulic pump and the temperature of the hydraulic pump, and calculates an error value by comparing the current opening and closing state with an expected opening and closing state; and the data processor dynamically adjusts the hydraulic pump through a closed-loop control algorithm according to the error value, and the current opening and closing state tends to the expected opening and closing state. According to the invention, hinge operation data can be collected in real time, closed-loop adjustment is carried out, and accurate control of the state of the hydraulic hinge is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of hinge control, and in particular to a control method of a hydraulic hinge and a hydraulic hinge thereof. Background Art

[0002] Hydraulic hinges are a common mechanical component widely used in doors, windows, furniture, vehicles and other equipment that require dynamic opening and closing adjustments. Hydraulic hinges usually rely on hydraulic pumps to provide pressure and adjust the opening and closing angles and speeds of the blades to achieve buffering, positioning and opening and closing control. However, the existing hydraulic hinge control methods have the following technical bottlenecks and shortcomings:

[0003] The current control of hydraulic hinges is mainly based on fixed preset parameters, and it is impossible to monitor and adjust the actual opening and closing state of the hydraulic hinges in real time, which may lead to opening and closing lags, control errors or untimely responses in actual operation. Traditional hydraulic hinges are affected by various external environments during operation. For example, temperature changes will cause changes in the viscosity of the hydraulic oil, thereby affecting the output pressure of the hydraulic pump, but the existing methods have poor adaptability to these dynamic changes. Since real-time data may contain noise and errors, the control method of traditional hydraulic hinges fails to effectively process these data, which may cause inaccurate detection of the opening and closing state, thereby affecting the control accuracy. Many existing hydraulic hinges adopt an open-loop control mode, lacking real-time error calculation and feedback adjustment, and it is difficult to meet the demand for precise control under complex working conditions. With the popularization of intelligent equipment, users' functional requirements for hydraulic hinges are no longer limited to simple opening and closing, but expect to have a higher level of intelligence, such as automatic adjustment of the opening and closing angle, smooth buffering function, and adaptive control for special scenarios.

[0004] In order to solve the above problems, there is an urgent need for a hydraulic hinge control method that can perform real-time acquisition, intelligent processing, and closed-loop adjustment, so as to achieve precise control of the hydraulic hinge state and meet diverse and complex usage requirements. Summary of the invention

[0005] In view of this, the present invention proposes a control method for a hydraulic hinge and a hydraulic hinge thereof, which can realize real-time collection of hinge operation data and perform closed-loop adjustment to achieve precise control of the state of the hydraulic hinge.

[0006] On the one hand, the present invention provides a control method for a hydraulic hinge, comprising:

[0007] An angle sensor, a pressure sensor and a temperature sensor are arranged in the hydraulic hinge to obtain the real-time opening and closing angle of the hydraulic hinge, the pressure of the hydraulic pump and the temperature of the hydraulic pump;

[0008] The real-time opening and closing angle of the hydraulic hinge, the pressure of the hydraulic pump and the temperature of the hydraulic pump are transmitted to the data processor, and the data processor uses a filtering algorithm to perform denoising on the real-time opening and closing angle of the hydraulic hinge, the pressure of the hydraulic pump and the temperature of the hydraulic pump to obtain the denoised real-time opening and closing angle of the hydraulic hinge, the denoised pressure of the hydraulic pump and the denoised temperature of the hydraulic pump;

[0009] The data processor calculates the current opening and closing state of the hydraulic hinge according to the real-time opening and closing angle of the hydraulic hinge after denoising, the pressure of the hydraulic pump after denoising, and the temperature of the hydraulic pump after denoising, and calculates the error value by comparing the current opening and closing state with the expected opening and closing state;

[0010] The data processor uses a closed-loop control algorithm to dynamically adjust the hydraulic pump based on the error value, so that the current opening and closing state tends to the expected opening and closing state.

[0011] The data processor uses a filtering algorithm to perform denoising on the real-time opening and closing angle of the hydraulic hinge, the pressure of the hydraulic pump, and the temperature of the hydraulic pump to obtain the denoised real-time opening and closing angle of the hydraulic hinge, the denoised pressure of the hydraulic pump, and the denoised temperature of the hydraulic pump, which are expressed as:

[0012] ;

[0013] in, is the real-time opening and closing angle of the hydraulic hinge after denoising at time t, is the length of the sliding window, for Real-time opening and closing angle of hydraulic hinges;

[0014] ;

[0015] in, is the pressure of the hydraulic pump after denoising at time t, for The pressure of the hydraulic pump at all times;

[0016] ;

[0017] in, is the temperature of the hydraulic pump after denoising at time t, for The temperature of the hydraulic pump at all times.

[0018] The data processor calculates the current opening and closing state of the hydraulic hinge based on the real-time opening and closing angle of the hydraulic hinge after denoising, the pressure of the hydraulic pump after denoising and the temperature of the hydraulic pump after denoising, and compares the current opening and closing state with the expected opening and closing state to calculate the error value. The specific content is: use a weighted formula to comprehensively calculate the real-time opening and closing angle of the hydraulic hinge after denoising, the pressure of the hydraulic pump after denoising and the temperature of the hydraulic pump after denoising to obtain the current opening and closing state of the hydraulic hinge, compare the current opening and closing state of the hydraulic hinge with the expected opening and closing state, and calculate the error value.

[0019] The expected opening and closing state is obtained by using a weighted method according to the current preset hydraulic hinge opening and closing angle, the current preset hydraulic pump pressure and the current preset hydraulic pump temperature.

[0020] The weighted formula is used to comprehensively calculate the real-time opening and closing angle of the hydraulic hinge after denoising, the pressure of the hydraulic pump after denoising, and the temperature of the hydraulic pump after denoising to obtain the current opening and closing state of the hydraulic hinge, which is expressed as:

[0021] ;

[0022] in, The current opening and closing state of the hydraulic hinge. is the first weight coefficient, is the second weight coefficient, is the third weight coefficient.

[0023] The expected opening and closing state is obtained by a weighted method according to the current preset hydraulic hinge opening and closing angle, the current preset hydraulic pump pressure and the current preset hydraulic pump temperature, and is expressed as:

[0024] ;

[0025] in, For the expected opening and closing state, is the fourth weight coefficient, is the fifth weight coefficient, is the sixth weight coefficient, The hydraulic hinge opening and closing angle is preset at time t. The preset pressure of the hydraulic pump at time t, Preset the temperature of the hydraulic pump for time t.

[0026] The current opening and closing state of the hydraulic hinge is compared with the expected opening and closing state, and the error value is calculated, which is expressed as:

[0027] ;

[0028] in, is the error value, 0, the current opening and closing state exceeds the expected opening and closing state, At 0, the current opening and closing state is lower than the expected opening and closing state.

[0029] The data processor dynamically adjusts the hydraulic pump using a closed-loop control algorithm based on the error value, so that the current opening and closing state tends to the expected opening and closing state. The specific content is: the processor dynamically adjusts the hydraulic pump using a PID control algorithm based on the error value, and adjusts the flow and pressure of the hydraulic pump so that the current opening and closing state tends to the expected opening and closing state.

[0030] The PID control algorithm is used to dynamically adjust the hydraulic pump, which is expressed as:

[0031] ;

[0032] in, is the control signal, is the proportionality coefficient, is the integration coefficient, is the differential coefficient.

[0033] On the other hand, the present invention also proposes a hydraulic hinge for realizing the control method of the above-mentioned hydraulic hinge, comprising a hydraulic hinge body, a hydraulic pump is arranged in the hydraulic hinge body, a micro sensor group is arranged in the hydraulic hinge body, and a micro data processor is arranged in the hydraulic hinge body;

[0034] The micro sensor group includes an angle sensor, a pressure sensor and a temperature sensor;

[0035] The temperature sensor, the angle sensor and the temperature sensor are electrically connected to the micro data processor;

[0036] The hydraulic hinge body comprises two blades, a first blade and a second blade, and a shaft is connected to the center of the first blade and the second blade.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] A control method for a hydraulic hinge of the present invention integrates an angle sensor, a pressure sensor and a temperature sensor in the hydraulic hinge to collect the opening and closing angle of the hydraulic hinge, the pressure and temperature information of the hydraulic pump in real time, and uses a filtering algorithm to denoise the data to ensure the accuracy and reliability of the collected data; the data processor dynamically adjusts the output pressure and flow of the hydraulic pump according to the error value between the current state and the expected target state using a closed-loop control algorithm, so that the current opening and closing state of the hydraulic hinge quickly approaches the target state; the expected opening and closing state is composed of the target angle, pressure and temperature of the hydraulic hinge, which is dynamically calculated by a weighted method, and the target value can be adjusted in real time according to different working conditions, so that the hydraulic hinge has higher adaptability and flexibility; the denoised data can significantly reduce the influence of environmental interference and sensor errors on the operation of the hydraulic hinge, and the closed-loop control algorithm can be used to dynamically adjust the target value according to different working conditions. The control algorithm ensures that the hydraulic hinge can maintain stable operation under high frequency or harsh environment; by accurately adjusting the output pressure and flow of the hydraulic pump, energy waste is avoided, while the workload of the hydraulic pump is reduced and the service life of the equipment is extended; the hydraulic hinge body integrates a micro sensor group and a data processor, which has a compact structure, is easy to install and maintain, and provides a unified interface, which is suitable for a variety of scenarios; the system has dynamic buffering and intelligent opening and closing adjustment functions, which can provide higher comfort and convenience according to the needs of the usage scenario, for example, it can still maintain good performance under high-load opening and closing or special environments (such as high or low temperature); this control method is not only suitable for ordinary hydraulic hinges, but can also be extended to other hydraulic component scenarios such as industrial equipment, smart homes, and vehicle control, and has broad application prospects and commercial value. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0040] Figure 1 This is a flow chart of a method for controlling a hydraulic hinge according to an embodiment of the present invention;

[0041] Figure 2 This is a structural diagram of a hydraulic hinge according to an embodiment of the present invention;

[0042] Figure 3 This is a diagram of the internal structure of a hydraulic hinge according to an embodiment of the present invention.

[0043] In the figure, 1, first blade; 2, second blade; 3, shaft; 4, micro sensor group; 5, micro data processor; 6, hydraulic pump. DETAILED DESCRIPTION

[0044] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0045] See also Figure 1 As shown, an embodiment of the present invention provides a control method for a hydraulic hinge, comprising:

[0046] S1: An angle sensor, a pressure sensor and a temperature sensor are arranged in the hydraulic hinge to obtain the real-time opening and closing angle of the hydraulic hinge, the pressure of the hydraulic pump and the temperature of the hydraulic pump;

[0047] S2: The real-time opening and closing angle of the hydraulic hinge, the pressure of the hydraulic pump and the temperature of the hydraulic pump are transmitted to the data processor, and the data processor uses a filtering algorithm to perform denoising on the real-time opening and closing angle of the hydraulic hinge, the pressure of the hydraulic pump and the temperature of the hydraulic pump to obtain the denoised real-time opening and closing angle of the hydraulic hinge, the denoised pressure of the hydraulic pump and the denoised temperature of the hydraulic pump;

[0048] S3: The data processor calculates the current opening and closing state of the hydraulic hinge according to the real-time opening and closing angle of the hydraulic hinge after denoising, the pressure of the hydraulic pump after denoising, and the temperature of the hydraulic pump after denoising, and calculates the error value by comparing the current opening and closing state with the expected opening and closing state;

[0049] S4: The data processor uses a closed-loop control algorithm to dynamically adjust the hydraulic pump according to the error value, so as to make the current opening and closing state approach the expected opening and closing state.

[0050] The data processor uses a filtering algorithm to denoise the real-time opening and closing angle of the hydraulic hinge, the pressure of the hydraulic pump, and the temperature of the hydraulic pump to obtain the denoised real-time opening and closing angle of the hydraulic hinge, the denoised pressure of the hydraulic pump, and the denoised temperature of the hydraulic pump, which are expressed as:

[0051] ;

[0052] in, is the real-time opening and closing angle of the hydraulic hinge after denoising at time t, is the length of the sliding window, for Real-time opening and closing angle of hydraulic hinges;

[0053] ;

[0054] in, is the pressure of the hydraulic pump after denoising at time t, for The pressure of the hydraulic pump at all times;

[0055] ;

[0056] in, is the temperature of the hydraulic pump after denoising at time t, for The temperature of the hydraulic pump at all times.

[0057] Specifically, the angle sensor, pressure sensor and temperature sensor are all high-precision sensing devices, which collect the real-time opening and closing angle of the hydraulic hinge, the pressure of the hydraulic pump and the temperature signal in real time at a fixed frequency.

[0058] A certain number of continuous data points are taken, namely, the average value of the real-time opening and closing angle of the hydraulic hinge, the pressure of the hydraulic pump, and the temperature of the hydraulic pump to replace the current data point, smooth the high-frequency noise, and update the denoising value in real time by shifting and storing the current and most recently collected data. Each time a new set of data is collected, the window is updated and the oldest data point is discarded.

[0059] It should be noted that the filtering algorithm effectively removes environmental noise, sensor jitter or high-frequency interference in data acquisition, making the signals of hydraulic hinge opening and closing angle, pressure and temperature more accurate and improving control accuracy; the signal after filtering is smoother, avoiding misjudgment and over-adjustment caused by instantaneous spikes or jitter, and ensuring the stability of hydraulic pump pressure and flow adjustment; the denoised data is used as the basic input for subsequent state calculation and error analysis, and its accuracy directly affects the effect of the closed-loop control algorithm. High-quality data reduces the control deviation of the system, allowing the hydraulic hinge to approach the expected opening and closing state more quickly; by reducing misoperation and unnecessary adjustments, the filtering algorithm indirectly reduces the workload of the hydraulic pump and sensor, extending the service life of the equipment; for different noise characteristics and complex working conditions (such as high vibration, high temperature difference), the filtering algorithm parameters (such as sliding window size or weight factor) can be adjusted to quickly adapt to the environment to ensure that the hydraulic hinge system can operate stably in various application scenarios.

[0060] The data processor calculates the current opening and closing state of the hydraulic hinge based on the real-time opening and closing angle of the hydraulic hinge after denoising, the pressure of the hydraulic pump after denoising and the temperature of the hydraulic pump after denoising, and compares the current opening and closing state with the expected opening and closing state to calculate the error value. The specific content is: use a weighted formula to comprehensively calculate the real-time opening and closing angle of the hydraulic hinge after denoising, the pressure of the hydraulic pump after denoising and the temperature of the hydraulic pump after denoising to obtain the current opening and closing state of the hydraulic hinge, compare the current opening and closing state of the hydraulic hinge with the expected opening and closing state, and calculate the error value.

[0061] Specifically, the data processor first normalizes the real-time opening and closing angle of the denoised hydraulic hinge, the pressure of the hydraulic pump after denoising, and the temperature of the hydraulic pump after denoising to avoid affecting the accuracy of the weighted calculation due to dimensional differences. The data processor assigns weights to the real-time opening and closing angle of the hydraulic hinge after denoising, the pressure of the hydraulic pump after denoising, and the temperature of the hydraulic pump after denoising according to their respective importance to reflect their influence on the overall opening and closing state of the hydraulic hinge. After calculating the current opening and closing state, the data processor compares it with the preset target state.

[0062] It should be noted that by integrating key parameters such as angle, pressure and temperature, an accurate and dynamic indicator of the current opening and closing state is provided, overcoming the limitation that a single parameter is difficult to fully reflect the operating status of the hydraulic hinge. According to the error value feedback, the output parameters of the hydraulic pump (such as flow and pressure) are dynamically adjusted, so that the system can quickly respond to the state deviation and ensure the accurate operation of the hydraulic hinge. The weight coefficient can be flexibly set according to the actual working conditions to support system optimization control under different environments and usage requirements. Through error feedback, the hydraulic pump output is adjusted in real time to ensure that the hydraulic hinge action is stable and accurate, avoiding system failure or abnormal operation due to accumulated deviations. The difference between the current state and the target state is accurately calculated, the system response time is shortened, and the control efficiency is significantly improved. Reduce the mechanical shock and energy waste caused by frequent and large adjustments, reduce the wear of key components, and extend the overall life of the system. Dynamically adjust the hydraulic pump output to avoid unnecessary high-energy consumption operation and achieve the goal of energy saving and consumption reduction.

[0063] Furthermore, when the temperature of the denoised hydraulic pump exceeds a set range, the pressure compensation flow of the hydraulic pump is adjusted to ensure the smoothness of the opening and closing action.

[0064] It should be noted that the temperature of the hydraulic pump may fluctuate due to environmental changes or long-term operation. If the temperature deviation is not compensated, it may cause the hydraulic pump to work unstably, the flow rate to be insufficient or excessive, and thus affect the movement accuracy and smoothness of the hydraulic hinge. By dynamically adjusting the pressure compensation flow, the system is ensured to always maintain the best working state. Too high or too low temperature will cause the fluidity of the hydraulic oil to change, which may cause the hydraulic hinge to move slowly or inaccurately. Through pressure compensation, the impact of temperature fluctuations on the performance of the hydraulic system is avoided, and the smooth opening and closing of the hydraulic hinge is ensured; the temperature compensation function improves the environmental adaptability of the hydraulic system, and can work stably within different temperature ranges, no longer restricted by temperature fluctuations, and adapt to a variety of environmental conditions (such as extremely high or low temperatures); through the dynamic adjustment of the hydraulic pump pressure, the opening and closing of the hydraulic hinge is ensured to be smooth and without abnormalities, avoiding equipment damage or system failure caused by temperature changes. Temperature compensation makes the working state of hydraulic hinges more stable, reduces system failures caused by excessive wear or unstable flow, and thus extends the service life of the equipment; the automated temperature compensation mechanism reduces fault repairs caused by temperature, thereby reducing the maintenance frequency and cost of equipment; the temperature compensation mechanism ensures that the hydraulic pump can still output stable flow and pressure in an environment with large temperature fluctuations through real-time dynamic adjustment, thereby ensuring the smooth operation of the hydraulic hinge; real-time monitoring and compensation of temperature can effectively prevent hydraulic system failure or unstable operation caused by abnormal temperature, ensuring long-term and reliable operation of the equipment; because the hydraulic hinge can still operate stably under different working environments, the user's equipment experience is optimized, and customer satisfaction with equipment performance is improved.

[0065] Furthermore, when the pressure fluctuation of the de-noised hydraulic pump is detected, the output pressure and flow of the hydraulic pump are automatically adjusted to ensure the stability of the hydraulic system.

[0066] Specifically, the data processor monitors the denoised hydraulic pump pressure data, compares the real-time sampling value with the pressure data at the previous moment, and calculates the pressure change. If the pressure fluctuation exceeds the preset threshold, the automatic adjustment process is triggered. Once the pressure fluctuation is detected, the data processor adjusts the pressure output of the hydraulic pump to reduce the impact of the fluctuation on the data processor. According to the fluctuation amplitude, the output pressure of the hydraulic pump is appropriately increased or decreased to ensure that the pressure is stable within the set working range.

[0067] The expected opening and closing state is obtained by weighting the preset hydraulic hinge opening and closing angle, the preset hydraulic pump pressure and the preset hydraulic pump temperature at the current moment. Flow is a key factor in the action of the hydraulic hinge, and the stability of the flow directly affects the opening and closing stability of the hydraulic hinge. In order to compensate for the impact of pressure fluctuations, the system also needs to adjust the output flow of the hydraulic pump to ensure that the hydraulic system is always in a stable state.

[0068] It should be noted that the fluctuation of hydraulic pump pressure will directly affect the stability of the hydraulic system, causing the opening and closing action of the hydraulic hinge to be unstable, and may even cause malfunctions. By automatically detecting pressure fluctuations and adjusting pressure and flow, this influence can be effectively reduced, ensuring the accuracy and stability of the hydraulic hinge action; the automatic adjustment mechanism enables the hydraulic hinge to adaptively adjust pressure and flow in the face of various operating environments and operating conditions, ensuring stable operation under various conditions, and improving the adaptability of the hydraulic hinge; by adjusting pressure and flow in real time, it can ensure that the hydraulic hinge remains stable under load changes or temperature fluctuations, and optimize the performance of the hydraulic hinge so that it can perform tasks more efficiently and smoothly; the main purpose of the present invention is to ensure that the hydraulic hinge remains stable under pressure fluctuations, and prevent the hydraulic hinge from opening and closing unsmoothly or failing to complete the expected task due to pressure fluctuations; by eliminating the impact of pressure fluctuations on the hydraulic hinge, it can ensure Precise control of hydraulic hinges meets high-precision opening and closing requirements, improving work efficiency and accuracy; the stable hydraulic system reduces the wear and tear on the hydraulic pump and other key components, reduces equipment failure rate, thereby extending the service life of the hydraulic hinge and reducing maintenance costs; automatic adjustment of pressure and flow can effectively avoid the adverse effects of hydraulic pump pressure fluctuations on the hydraulic hinge action, ensuring that the hydraulic system can maintain a stable and efficient working state under different operating conditions; through timely compensation for pressure fluctuations, hydraulic hinge failures caused by pressure fluctuations are reduced, and the reliability of the hydraulic system is improved; by optimizing the stability and precision of the hydraulic hinge, users can experience a smoother and more accurate operating experience during use, which enhances users' trust and satisfaction with the performance of hydraulic hinges.

[0069] The weighted formula is used to comprehensively calculate the real-time opening and closing angle of the de-noised hydraulic hinge, the pressure of the hydraulic pump after de-noising, and the temperature of the hydraulic pump after de-noising to obtain the current opening and closing state of the hydraulic hinge, which is expressed as:

[0070] ;

[0071] in, The current opening and closing state of the hydraulic hinge. is the first weight coefficient, is the second weight coefficient, is the third weight coefficient.

[0072] Specifically, in order to ensure that the opening and closing state of the hydraulic hinge is always optimal under different working conditions, the data processor uses a weighted formula to perform weighted calculations on the real-time opening and closing angle of the denoised hydraulic hinge, the pressure of the denoised hydraulic pump, and the temperature of the denoised hydraulic pump, and comprehensively obtains the current opening and closing state of the hydraulic hinge. The weight coefficient is set in advance according to the needs of the hydraulic hinge data processor. Under different working conditions, the opening and closing angle, pressure, and temperature have different effects on the opening and closing state of the hydraulic hinge. Therefore, the weighted coefficient is used to balance the effects of various factors to ensure the opening and closing accuracy and stability of the hydraulic hinge. After calculating the current opening and closing state of the hydraulic hinge, the data processor compares it with the preset opening and closing state. The preset opening and closing state is an ideal state pre-set based on the task requirements and the operating conditions of the hydraulic data processor. The purpose of this step is to determine whether the current hydraulic hinge state meets expectations and make subsequent adjustments. Once the error value between the current opening and closing state and the expected opening and closing state is detected, the data processor will adjust the pressure, flow rate, or opening and closing angle of the hydraulic hinge through a closed-loop control mechanism to reduce the error value and ensure that the hydraulic hinge moves accurately and meets expectations. The specific adjustment method is usually based on the PID (proportional-integral-differential) control algorithm, which automatically adjusts the operating parameters of the hydraulic data processor to gradually approach the expected state.

[0073] It should be noted that by comprehensively considering the hydraulic hinge opening and closing angle, the pressure of the hydraulic pump and the temperature of the hydraulic pump through the weighted formula, the current hydraulic hinge opening and closing state can be fully evaluated, thereby ensuring that its opening and closing accuracy meets the predetermined requirements and improving the stability and control accuracy of the hydraulic hinge; the performance of the hydraulic hinge under different environments and load conditions may be different. The weighted formula can dynamically adjust the weight coefficient according to real-time data, so that the hydraulic hinge can always adaptively adjust the opening and closing state according to different working conditions, thereby improving the flexibility and adaptability of the hydraulic hinge; comprehensively considering the opening and closing angle, pressure and temperature factors, it is helpful to dynamically optimize the resource utilization of the hydraulic hinge, avoid unnecessary energy consumption and waste, and ensure the stability and accuracy of the hydraulic hinge when performing the action; the main goal of the present invention is to comprehensively consider various influencing factors through the weighted formula, ensure that the opening and closing accuracy of the hydraulic hinge meets the expectations, and avoid system instability caused by external factors (such as pressure fluctuations, temperature changes, etc.); in a changing working environment, the hydraulic hinge needs to maintain stability and efficiency. Through weighted calculation, hydraulic hinges can flexibly respond to different working conditions to ensure that the hydraulic hinges are always in the best working state; through real-time adjustment and optimization of the opening and closing state, the pressure fluctuations and temperature fluctuations of the system can be reduced, thereby reducing the wear of the hydraulic pump and hydraulic hinges, extending the service life of the equipment, and reducing maintenance costs; through weighted formulas, hydraulic hinges can optimize the opening and closing state of the hydraulic hinges under various factors, thereby improving the overall performance of the hydraulic system and ensuring efficient and smooth operation of the equipment; real-time comparison of the current state of the hydraulic hinge with the expected state can detect potential problems early and correct them, reduce the occurrence of hydraulic system failures, and improve the safety of the system; stable and precise hydraulic hinge control improves the operating accuracy of the equipment, and users can experience smoother and more reliable hydraulic hinges, increasing the reliability and service life of the equipment.

[0074] The expected opening and closing state is obtained by a weighted method according to the current preset hydraulic hinge opening and closing angle, the current preset hydraulic pump pressure and the current preset hydraulic pump temperature, and is expressed as:

[0075] ;

[0076] in, For the expected opening and closing state, is the fourth weight coefficient, is the fifth weight coefficient, is the sixth weight coefficient, The hydraulic hinge opening and closing angle is preset at time t. The preset pressure of the hydraulic pump at time t, Preset the temperature of the hydraulic pump for time t.

[0077] Compare the current opening and closing state of the hydraulic hinge with the expected opening and closing state, and calculate the error value, which is expressed as:

[0078] ;

[0079] in, is the error value, 0, the current opening and closing state exceeds the expected opening and closing state, At 0, the current opening and closing state is lower than the expected opening and closing state.

[0080] It should be noted that the error value calculation enables real-time monitoring of the difference between the current state and the expected state. The closed-loop control can take real-time measures according to the error value, accurately control the output of the hydraulic pump, and ensure that the hydraulic hinge is always within the expected opening and closing state range; through closed-loop control, the data processor can dynamically adjust parameters according to actual working conditions and environmental changes to adapt to different loads, pressures and temperature changes. The error value calculation provides real-time feedback for the closed-loop control, so that the hydraulic hinge performs stably under different working conditions; through accurate error value calculation and real-time adjustment of the pressure and flow of the hydraulic pump, the opening and closing state of the hydraulic hinge can be accurately controlled to avoid exceeding the predetermined range, thereby improving the opening and closing accuracy and the reliability of the hydraulic system; the PID control algorithm can quickly adjust the output of the hydraulic pump according to the error value, ensuring that the hydraulic hinge can respond quickly and accurately reach the preset state, avoiding work delays caused by too slow response; the combination of error value calculation and closed-loop control ensures the stability of the hydraulic hinge in actual operation. Even in the case of large pressure or temperature fluctuations, the data processor can maintain stable operation through real-time adjustment to avoid unnecessary shock or over-adjustment; through accurate calculation of the error value, the data processor can continuously adjust the opening and closing state of the hydraulic hinge to ensure that the hydraulic hinge is always in the expected working state, thereby achieving higher accuracy; the present invention aims to adjust the system according to real-time feedback to ensure that the hydraulic hinge maintains the best state under different working conditions and improve the adaptability and flexibility of the hydraulic hinge; through precise control, excessive opening and closing or unstable operation of the hydraulic hinge can be avoided, thereby reducing system fatigue and wear and extending the service life of the equipment.

[0081] The data processor dynamically adjusts the hydraulic pump using a closed-loop control algorithm based on the error value, so that the current opening and closing state tends to the expected opening and closing state. The specific content is: the processor dynamically adjusts the hydraulic pump using a PID control algorithm based on the error value, and adjusts the flow and pressure of the hydraulic pump to make the current opening and closing state tend to the expected opening and closing state.

[0082] The PID control algorithm is used to dynamically adjust the hydraulic pump, which is expressed as:

[0083] ;

[0084] in, is the control signal, is the proportionality coefficient, is the integration coefficient, is the differential coefficient.

[0085] It should be noted that the use of PID control algorithm improves system stability: PID control algorithm can effectively improve system stability. By adjusting the proportional (P), integral (I) and differential (D) parameters appropriately, the overshoot of the system can be reduced and the response time can be shortened, thereby achieving a smoother control effect. The system can respond quickly: The PID controller can quickly adjust the output according to the error (the difference between the set value and the actual value) to ensure that the system can quickly return to the set state when facing disturbances. Compared with other control algorithms, PID controllers usually provide faster dynamic response. Reduce steady-state error: Through the action of the integral term, the PID controller can eliminate the steady-state error of the system, so that the system can accurately reach and maintain the set value. This is particularly important in situations where high-precision control is required, such as temperature control and speed control. Strong adaptability: The PID control algorithm does not have high requirements on the system model and can be applied in a wide range of systems. Whether it is a linear or some nonlinear system, the PID controller can effectively achieve control. Simple implementation: The algorithm structure of the PID controller is simple and easy to implement and adjust. Engineers can adjust parameters through experiments to adapt it to specific control needs. This simplicity makes PID one of the most commonly used control methods in industrial sites.

[0086] Furthermore, the data processor may further adjust the closing speed of the door according to the door opening angle and the door closing speed, specifically including:

[0087]

[0088] in, is the opening angle of the door, V is the closing speed of the door;

[0089] When the door opening angle is greater than or equal to 150° and less than or equal to 180° or greater than or equal to 130° and less than 140°, the door will automatically return to its original position, and the adjustment speed is V1;

[0090] When the door opening angle is greater than or equal to 140° and less than 150° or greater than or equal to 80° and less than 130°, the door will stop moving and the adjustment speed will be 0;

[0091] When the door angle is greater than or equal to 30° and less than 80°, the door will close faster, and the adjustment speed is V2, which is greater than V1;

[0092] When the door angle is greater than or equal to 15° and less than 30°, the door will close slowly, and the adjustment speed is V3, V3 is less than V2, and V3 is greater than V1;

[0093] When the door angle is greater than 0° and less than 15°, the door is in a silent closing state, and the adjustment speed is V4, which is less than V1.

[0094] See also Figure 2 and Figure 3 As shown, an embodiment of the present invention further provides a hydraulic hinge, including a hydraulic hinge body, a hydraulic pump is arranged in the hydraulic hinge body, a micro sensor group is arranged in the hydraulic hinge body, and a micro data processor is arranged in the hydraulic hinge body;

[0095] The micro sensor group includes an angle sensor, a pressure sensor, and a temperature sensor;

[0096] The temperature sensor, the angle sensor and the temperature sensor are electrically connected to the micro data processor;

[0097] The hydraulic hinge body comprises two blades, a first blade and a second blade, and a shaft is connected at the center of the first blade and the second blade.

[0098] Furthermore, the hydraulic pump is connected to the hydraulic system of the hydraulic hinge through a pipeline to provide the required pressure and flow to the hydraulic hinge. The working state of the hydraulic pump is closely related to the angle, pressure and temperature of the hydraulic hinge, so the output of the hydraulic pump is affected by the monitoring of the micro sensor group. The pressure sensor and temperature sensor are connected to the data processor through electrical signals, and transmit real-time pressure and temperature data to the micro data processor for closed-loop control system.

[0099] The micro sensor group consists of an angle sensor, a pressure sensor, and a temperature sensor. The angle sensor monitors the opening and closing angle of the hydraulic hinge in real time, the pressure sensor monitors the pressure output by the hydraulic pump, and the temperature sensor monitors the temperature changes in the hydraulic system. These sensors are electrically connected to the micro data processor through wires to ensure that the signal can be accurately transmitted to the data processor, which adjusts the working status of the hydraulic pump and hinge based on this real-time information.

[0100] After receiving the real-time data from the sensor group, the micro data processor uses a filtering algorithm to process the signal and calculate the error value. According to the calculated error value, the data processor controls the output pressure and flow of the hydraulic pump, directly affects the operation of the hydraulic pump through electrical connection, and ensures that the opening and closing state of the hydraulic hinge matches the predetermined target.

[0101] The main body of the hydraulic hinge consists of two leaves, the first and second leaves are connected by a central shaft. The shaft is one of the core structural components of the hydraulic hinge, driving the opening and closing of the leaves through the action controlled by the hydraulic system. Bearings and supporting components ensure that the hydraulic hinge can move smoothly and accurately during operation, avoiding inaccurate control due to mechanical damage or deformation.

[0102] It should be noted that the working state of the hydraulic hinge can be monitored in real time through angle sensors, pressure sensors and temperature sensors. The data provided by these sensors provide the basis for the dynamic adjustment of the system, ensuring that the data processor can perform precise control according to the actual state. The micro data processor receives the data feedback from the sensors, performs efficient data processing, and adjusts the pressure and flow of the hydraulic pump according to the error value to achieve precise control. This feedback control system improves the response speed and stability of the hydraulic hinge, ensuring that the opening and closing angles meet expectations. The connection method between the shaft and the blade of the hydraulic hinge ensures that the force generated by the hydraulic system can be effectively transmitted to the blade to perform the opening and closing action. Through the stable support of the shaft, the hydraulic hinge can maintain high precision and low wear during long-term use, extending its service life. All key components (hydraulic pump, micro sensor group, micro data processor) are integrated inside the hydraulic hinge body to form a compact system design, which not only reduces the size of the equipment, but also improves the response speed and work efficiency of the system. In addition, the close cooperation between the micro sensor group and the data processor reduces the communication delay between devices, making the control more real-time and accurate.

[0103] Specifically, the hinge connects the wall and the door, allowing the door to open and close. The installation position and method of the hinge ensure that the door can be stably connected to the wall and achieve free rotational movement. The closing speed of the door can be adjusted by adjusting the closing speed of the hinge. This function means that the user can set the closing speed of the door as needed, thereby enhancing the user experience and the service life of the door. The hinge consists of two blades, and the shaft located in the center of the blades plays a supporting and connecting role. The hinge has a buffering function, which means that when the door is closed, the hinge can effectively absorb the impact force, allowing the door to close slowly, reducing the noise and impact on the door frame caused by the rapid closing of the door.

[0104] In the present invention, when the door weight is ≤35KG and the size is ≤2000mm*700mm, a hydraulic hinge and a load-bearing hinge are required to ensure the stability and comfortable closing of the light door;

[0105] When the door weight is ≤65KG and the size is ≤2000mm*900mm, two hydraulic hinges should be equipped to support the closing requirements of medium-weight doors;

[0106] When the door weight is ≤90KG and the size is ≤2400mm*1100mm, three hydraulic hinges must be installed to meet the use requirements of heavy doors.

[0107] It should be noted that the hinges designed in the present invention can improve safety: the hinge design ensures the stability of the door and reduces the potential safety hazards caused by the door leaf being too heavy or closing too quickly. It can reduce noise: due to the buffering function of the hinge, the closing speed of the door can be controlled, thereby reducing the noise during closing and improving the comfort of the use environment. It can extend the service life of the door: controlling the closing speed and buffering function of the hinge can effectively reduce the wear of the door body and hinge.

[0108] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A control method for a hydraulic hinge, characterized in that: include: An angle sensor, a pressure sensor and a temperature sensor are arranged in the hydraulic hinge to obtain the real-time opening and closing angle of the hydraulic hinge, the pressure of the hydraulic pump and the temperature of the hydraulic pump; The real-time opening and closing angle of the hydraulic hinge, the pressure of the hydraulic pump and the temperature of the hydraulic pump are transmitted to the data processor, and the data processor uses a filtering algorithm to perform denoising on the real-time opening and closing angle of the hydraulic hinge, the pressure of the hydraulic pump and the temperature of the hydraulic pump to obtain the denoised real-time opening and closing angle of the hydraulic hinge, the denoised pressure of the hydraulic pump and the denoised temperature of the hydraulic pump; The data processor calculates the current opening and closing state of the hydraulic hinge according to the real-time opening and closing angle of the hydraulic hinge after denoising, the pressure of the hydraulic pump after denoising, and the temperature of the hydraulic pump after denoising, and calculates the error value by comparing the current opening and closing state with the expected opening and closing state; The data processor uses a closed-loop control algorithm to dynamically adjust the hydraulic pump based on the error value, so that the current opening and closing state tends to the expected opening and closing state.

2. A control method for a hydraulic hinge according to claim 1, characterized in that: The data processor uses a filtering algorithm to perform denoising on the real-time opening and closing angle of the hydraulic hinge, the pressure of the hydraulic pump, and the temperature of the hydraulic pump to obtain the denoised real-time opening and closing angle of the hydraulic hinge, the denoised pressure of the hydraulic pump, and the denoised temperature of the hydraulic pump, which are expressed as: ； in, is the real-time opening and closing angle of the hydraulic hinge after denoising at time t, is the length of the sliding window, for Real-time opening and closing angle of hydraulic hinges; ； in, is the pressure of the hydraulic pump after denoising at time t, for The pressure of the hydraulic pump at all times; ； in, is the temperature of the hydraulic pump after denoising at time t, for The temperature of the hydraulic pump at all times.

3. A control method for a hydraulic hinge according to claim 2, characterized in that: The data processor calculates the current opening and closing state of the hydraulic hinge based on the real-time opening and closing angle of the hydraulic hinge after denoising, the pressure of the hydraulic pump after denoising and the temperature of the hydraulic pump after denoising, and compares the current opening and closing state with the expected opening and closing state to calculate the error value. The specific content is: use a weighted formula to comprehensively calculate the real-time opening and closing angle of the hydraulic hinge after denoising, the pressure of the hydraulic pump after denoising and the temperature of the hydraulic pump after denoising to obtain the current opening and closing state of the hydraulic hinge, compare the current opening and closing state of the hydraulic hinge with the expected opening and closing state, and calculate the error value.

4. A control method for a hydraulic hinge according to claim 3, characterized in that: The expected opening and closing state is obtained by using a weighted method according to a preset hydraulic hinge opening and closing angle at the current moment, a preset hydraulic pump pressure at the current moment, and a preset hydraulic pump temperature at the current moment.

5. A control method for a hydraulic hinge according to claim 4, characterized in that: The weighted formula is used to comprehensively calculate the real-time opening and closing angle of the hydraulic hinge after denoising, the pressure of the hydraulic pump after denoising, and the temperature of the hydraulic pump after denoising to obtain the current opening and closing state of the hydraulic hinge, which is expressed as: ； in, The current opening and closing state of the hydraulic hinge. is the first weight coefficient, is the second weight coefficient, is the third weight coefficient.

6. A control method for a hydraulic hinge according to claim 5, characterized in that: The expected opening and closing state is obtained by a weighted method according to the current preset hydraulic hinge opening and closing angle, the current preset hydraulic pump pressure and the current preset hydraulic pump temperature, and is expressed as: ； in, For the expected opening and closing state, is the fourth weight coefficient, is the fifth weight coefficient, is the sixth weight coefficient, The hydraulic hinge opening and closing angle is preset at time t. The preset pressure of the hydraulic pump at time t, Preset the temperature of the hydraulic pump for time t.

7. A method for controlling a hydraulic hinge according to claim 6, characterized in that: The current opening and closing state of the hydraulic hinge is compared with the expected opening and closing state, and the error value is calculated, which is expressed as: ； in, is the error value, 0, the current opening and closing state exceeds the expected opening and closing state, At 0, the current opening and closing state is lower than the expected opening and closing state.

8. A method for controlling a hydraulic hinge according to claim 7, characterized in that: The data processor dynamically adjusts the hydraulic pump using a closed-loop control algorithm based on the error value, so that the current opening and closing state tends to the expected opening and closing state. The specific content is: the processor dynamically adjusts the hydraulic pump using a PID control algorithm based on the error value, and adjusts the flow and pressure of the hydraulic pump so that the current opening and closing state tends to the expected opening and closing state.

9. A control method for a hydraulic hinge according to claim 8, characterized in that: The PID control algorithm is used to dynamically adjust the hydraulic pump, which is expressed as: ； in, is the control signal, is the proportionality coefficient, is the integration coefficient, is the differential coefficient.

10. A hydraulic hinge, implemented in the control method of a hydraulic hinge according to any one of claims 1 to 9, characterized in that: It comprises a hydraulic hinge body, wherein a hydraulic pump is arranged in the hydraulic hinge body, a micro sensor group is arranged in the hydraulic hinge body, and a micro data processor is arranged in the hydraulic hinge body; The micro sensor group includes an angle sensor, a pressure sensor and a temperature sensor; The temperature sensor, the angle sensor and the temperature sensor are electrically connected to the micro data processor; The hydraulic hinge body comprises two blades, a first blade and a second blade, and a shaft is connected to the center of the first blade and the second blade.

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