Sterilizing pot cage plate turning method
Through the automated sterilization cage turnover method, the material spilling problem caused by low automation level in the existing technology is solved, efficient sterilization and material transfer are achieved, and the continuity and stability of the production line are improved.
Patent Information
- Application Number
- CN202510055662.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2025-04-25
AI Technical Summary
The automation level of the prior art is not high during the automation flip process, which can easily lead to material spilling, resulting in waste of resources and increased production costs.
An automated method of turning over the sterilization pot cage tray is adopted, including material loading, sterilization preparation, position rotation, material transfer and sterilization, material unloading and conveying, and circulation operations. Automatic flip of the cage tray and continuous material transfer are realized through components such as conveyor, unloading conveyor and compression unit.
It improves sterilization efficiency, reduces material losses, improves the continuity and stability of the production line, enhances operational reliability, and reduces energy consumption and production costs.
Smart Images

Figure CN119867240A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of food, and in particular relates to a method for turning over a sterilization pot cage plate. Background Art
[0002] In the field of food processing, the retort tray turning method is not just a simple operation step, but the core link in the entire automated sterilization process. This method is directly related to the sterilization efficiency, product quality, and the continuity and stability of the production line.
[0003] However, the existing technology has the problem of low automation level in the process of automatic turning, which easily leads to material spillage, resulting in resource waste and increased production costs. In order to improve efficiency and reduce losses, it is particularly necessary to improve the technology of the existing cage tray turning machine. Summary of the invention
[0004] (I) Purpose of the invention
[0005] In order to overcome the above disadvantages, the object of the present invention is to provide a method for turning over a sterilizing pot cage plate to solve the above technical problems.
[0006] (II) Technical solution
[0007] To achieve the above objectives, the technical solutions provided by this application are as follows:
[0008] A method for turning over a sterilizing pot cage plate, comprising the following steps:
[0009] S1 Material loading: The material to be sterilized is placed in the first sterilization cage tray, which is then automatically transported to the upper sterilization position and fixed and pressed after arriving;
[0010] S2 Sterilization preparation: The first unloading conveyor descends to the opening of the first sterilization cage tray, ready to start the sterilization process;
[0011] S3 position rotation: the sterilization cage tray and the discharge conveyor rotate 180° as a whole, so that the first sterilization cage tray moves to the lower sterilization position, and the second sterilization cage tray and the second discharge conveyor move to the upper sterilization position;
[0012] S4 Material transfer and sterilization: While the first sterilization cage tray continues to sterilize, the second unloading conveyor moves up to send out the second sterilization cage tray to load new materials to be sterilized. After the materials are full, the second sterilization cage tray is sent back to the upper sterilization position again;
[0013] S5 Material unloading and conveying: After the first sterilization cage tray completes sterilization, the first unloading conveyor descends, causing the material to descend with it. Subsequently, the first unloading conveyor rotates to convey the sterilized material to the next production process;
[0014] S6 cyclic operation: the above steps are repeated until all materials have been sterilized.
[0015] Preferably, the component for transmitting the cage plate in S1 is a transmission conveyor, and a limit sensor is provided on the transmission conveyor. The limit sensor is electrically connected to a transmission motor of the transmission conveyor, and the transmission motor drives a transmission chain to rotate. The transmission chain is installed on a transmission frame, and the transmission chain drives the sterilization cage plate to move laterally.
[0016] Preferably, the component for fixing and pressing the cage plate in S1 is a pressing unit, which includes a pressing cylinder and a pressing rod. The pressing rod is rotatably installed on the conveying rack, one end of the pressing rod is rotatably connected to the telescopic end of the pressing cylinder, and the other end of the pressing rod is arranged corresponding to the flange of the sterilization cage plate.
[0017] Preferably, the first unloading conveyor and the second unloading conveyor are both unloading conveyors, and the unloading conveyors include a lifting cylinder and a conveyor belt connected to the lifting cylinder. Under the action of the lifting cylinder, the conveyor belt moves away from or close to the opening of the sterilization cage tray.
[0018] Preferably, the component rotating in S3 includes a disc rotating seat, which is rotatably installed on a frame under the action of a driving device, and the disc rotating seat includes driving discs arranged on both sides and a sterilization conveying component arranged between the two driving discs, and the sterilization conveying component is provided with two and is symmetrically arranged about the center of the disc rotating seat, and is divided into an upper sterilization position and a lower sterilization position, and the sterilization conveying component includes a sterilization cage tray, a conveying conveyor for driving the sterilization cage tray to move horizontally, and a lifting unloading conveyor, the sterilization cage tray includes a first sterilization cage tray and a second sterilization cage tray, and the unloading conveyor includes a first unloading conveyor and a second unloading conveyor.
[0019] Preferably, the driving disc is rotatably matched with a supporting wheel arranged on the frame, and a driving gear is provided on the driving disc, and the driving gear is meshed with driving teeth of a driving device, and the driving teeth rotate under the action of a driving motor, and the driving teeth include active driving teeth and driven driving teeth meshed with each other, the active driving teeth are connected to the driving motor, and the driven driving teeth are meshed with the driving gear, and a mounting support plate is provided on the driving disc.
[0020] Preferably, a plurality of sterilization holes are provided on the sterilization cage tray, and a flange is provided on the sterilization cage tray.
[0021] It also includes a temperature control optimization algorithm, which specifically includes the following steps:
[0022] A1 data collection and analysis, collecting data on temperature, pressure, and material properties during the sterilization process for algorithm training and model building;
[0023] A2 feature extraction and model training uses the collected data for feature extraction, including temperature change rate and pressure change, and uses a deep learning framework to train a model suitable for a specific scenario.
[0024] A3 adaptive control strategy, design an adaptive control strategy, combine feedback control with predictive control, use historical data and models to predict the future state of the system, and automatically adjust parameters;
[0025] A4 exception handling and alarm mechanism, implements the exception handling mechanism, and triggers an alarm when the control system encounters data overflow, actuator failure, or control target deviates from the preset range;
[0026] A5 Performance evaluation and optimization: define performance indicators, including control accuracy and response time, and conduct tests, and optimize the algorithm based on the evaluation results;
[0027] A6 real-time monitoring and adjustment, real-time monitoring of temperature parameters, and adjustment of control strategies based on real-time data analysis results to ensure the stability and efficiency of the sterilization process;.
[0028] A7 integration and expansion: Integrate the algorithm with the PLC control system to achieve cross-platform temperature control;
[0029] Algorithm formula:
[0030] PID control basic formula:
[0031] Proportional term (P): u(t) = Kpe(t)
[0032] Integral term (I): u(t) = Ki∫e(t)dt
[0033] Differential term (D): Among them, Kp, Ki, Kd are proportional, integral, and differential coefficients respectively, and e(t) is the deviation signal, that is, the difference between the set value and the actual value;
[0034] Fuzzy PID control rules:
[0035] According to the temperature deviation and the rate of change of the deviation, the adjustment of the PID parameters is determined by fuzzy logic. If e(t) is negative and Δe(t) is negative, ΔKp, ΔKi, and ΔKd increase;
[0036] If e(t) is zero and Δe(t) is zero, keep Kp, Ki, and Kd unchanged;
[0037] Adaptive adjustment formula:
[0038] Dynamically adjust PID parameters according to system performance and environmental changes.
[0039] Kp=Kp0+ΔKp
[0040] Ki=Ki0+ΔKi
[0041] Kd=Kd0+ΔKd, where Kp0, Ki0, Kd0 are initial PID parameters, and ΔKp, ΔKi, ΔKd are parameter changes adjusted according to fuzzy logic or other optimization algorithms.
[0042] Beneficial effects:
[0043] 1. Improve sterilization efficiency: Through automated flipping operations, ensure that food can be evenly heated during the sterilization process, improve sterilization efficiency, and ensure food safety.
[0044] 2. Reduce material loss: Accurately control the material transmission and unloading process, reduce the spillage of materials during the turning process, reduce material loss and save costs.
[0045] 3. Improve production continuity: Through continuous cycle operation, efficient alternating use of sterilization cages and trays can be achieved, improving the continuity and stability of the production line.
[0046] 4. Enhanced operational reliability: Automated operation reduces human errors and improves the reliability and consistency of the entire sterilization process. BRIEF DESCRIPTION OF THE DRAWINGS
[0047] Figure 1 It is a schematic diagram of the main structure of the present invention;
[0048] Figure 2 is an enlarged view of point A according to an embodiment of the present invention;
[0049] Figure 3 is a side view of an embodiment according to the present invention. DETAILED DESCRIPTION
[0050] In order to make the purpose, technical solutions and advantages of the present invention more clear, the following is a detailed description of the present invention in conjunction with the specific implementation methods and with reference to the attached drawings. Figure 1-3 , the present invention is further described in detail. It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion of the concept of the present invention.
[0051] A method for turning over a sterilizing pot cage plate, comprising the following steps:
[0052] S1 Material loading: The material to be sterilized is placed in the first sterilization cage tray, which is then automatically transported to the upper sterilization position and fixed and pressed after arriving;
[0053] S2 Sterilization preparation: The first unloading conveyor descends to the opening of the first sterilization cage tray, ready to start the sterilization process;
[0054] S3 position rotation: the sterilization cage tray and the discharge conveyor rotate 180° as a whole, so that the first sterilization cage tray moves to the lower sterilization position, and the second sterilization cage tray and the second discharge conveyor move to the upper sterilization position;
[0055] S4 Material transfer and sterilization: While the first sterilization cage tray continues to sterilize, the second unloading conveyor moves up to send out the second sterilization cage tray to load new materials to be sterilized. After the materials are full, the second sterilization cage tray is sent back to the upper sterilization position again;
[0056] S5 Material unloading and conveying: After the first sterilization cage tray completes sterilization, the first unloading conveyor descends, causing the material to descend with it. Subsequently, the first unloading conveyor rotates to convey the sterilized material to the next production process;
[0057] S6 cyclic operation: the above steps are repeated until all materials have been sterilized.
[0058] The component for transmitting the cage plate in S1 is a transmission conveyor. The transmission conveyor 9 is provided with a limit sensor, and the limit sensor is electrically connected to the transmission motor of the transmission conveyor 9. The transmission motor transmits the transmission chain 13 to rotate. The transmission chain 13 is installed on the transmission frame, and the transmission chain 13 drives the sterilization cage plate 8 to move horizontally.
[0059] The component for fixing and pressing the cage tray in S1 is a pressing unit, which includes a pressing cylinder 17 and a pressing rod 15. The pressing cylinder 17 is electrically connected to the limit sensor, that is, it starts to press down after receiving the signal of the limit sensor. The pressing rod 15 is rotatably installed on the conveying rack, one end of the pressing rod 15 is rotatably connected to the telescopic end of the pressing cylinder 17, and the other end of the pressing rod 15 is arranged corresponding to the flange 12 of the sterilization cage tray.
[0060] The limit sensor is used to sense whether the sterilization cage tray is delivered in place. When it is delivered in place, the limit sensor transmits a signal to the conveying motor of the conveyor, thereby stopping the delivery of the sterilization cage tray. The rear limit sensor transmits a signal to the clamping cylinder, and the clamping cylinder drives the clamping rod to press down, so that the flange of the sterilization cage tray is clamped. When the sterilization cage tray rotates with the driving disc, the sterilization cage tray will not tip over.
[0061] The first unloading conveyor and the second unloading conveyor are both unloading conveyors. The unloading conveyor 10 includes a lifting cylinder 16 and a conveyor belt connected to the lifting cylinder 16. Under the action of the lifting cylinder 16, the conveyor belt moves away from or close to the opening of the sterilization cage tray.
[0062] The rotating parts in S3 include a disc rotating seat, which is rotatably mounted on a frame 5 under the action of a driving device, and the disc rotating seat includes a driving disc 4 arranged on both sides and a sterilization transmission component arranged between the two driving discs 4, and the driving disc 4 is rotatably matched with a support wheel 1 arranged on the frame 5, and a driving gear 2 is provided on the driving disc 4, and the driving gear 2 is meshed with the driving teeth of the driving device, and the driving teeth rotate under the action of a driving motor. A mounting support plate 11 is provided on the driving disc 4, and the sterilization transmission component is arranged on the mounting support plate 11. It is convenient for the installation of the sterilization transmission component, and it can also play the role of a reinforcing rib to prevent the deformation of the driving disc.
[0063] The driving teeth include mutually meshing active driving teeth 7 and driven driving teeth 6, wherein the active driving teeth 7 are connected to the driving motor, and the driven driving teeth 6 are meshed with the driving gear 2. The driving motor drives the active driving teeth 7 to rotate, thereby causing the driven driving teeth 6 to drive the driving gear 2 to rotate, thus realizing the rotation of the driving disc 4, thereby driving the sterilization transmission component to rotate.
[0064] The sterilization conveying components are provided with two and are symmetrically arranged about the center of the disc rotating seat. The sterilization conveying components include a sterilization cage tray 8, a conveying conveyor 9 that drives the sterilization cage tray 8 to move horizontally, and a lifting unloading conveyor 10. The unloading conveyor 10 is located at one end of the opening of the sterilization cage tray.
[0065] The sterilization cage plate 8 is provided with a plurality of sterilization holes 14, and the setting of the sterilization holes can promote the uniform distribution and circulation of the sterilization medium, so as to ensure that the food can be evenly heated during the sterilization process, thereby achieving an effective sterilization effect. The sterilization cage plate 8 is provided with a flange 12. The setting of the flange is convenient for corresponding to the pressing unit, so as to prevent the sterilization cage plate from tipping over when turning over, causing the material to spill.
[0066] It also includes a temperature control optimization algorithm, which specifically includes the following steps:
[0067] A1 data collection and analysis, collecting data on temperature, pressure, and material properties during the sterilization process for algorithm training and model building;
[0068] A2 feature extraction and model training uses the collected data for feature extraction, including temperature change rate and pressure change, and uses a deep learning framework to train a model suitable for a specific scenario.
[0069] A3 adaptive control strategy, design an adaptive control strategy, combine feedback control with predictive control, use historical data and models to predict the future state of the system, and automatically adjust parameters;
[0070] A4 exception handling and alarm mechanism, implements the exception handling mechanism, and triggers an alarm when the control system encounters data overflow, actuator failure, or control target deviates from the preset range;
[0071] A5 Performance evaluation and optimization: define performance indicators, including control accuracy and response time, and conduct tests, and optimize the algorithm based on the evaluation results;
[0072] A6 real-time monitoring and adjustment, real-time monitoring of temperature parameters, and adjustment of control strategies based on real-time data analysis results to ensure the stability and efficiency of the sterilization process;.
[0073] A7 integration and expansion: Integrate the algorithm with the PLC control system to achieve cross-platform temperature control;
[0074] Algorithm formula:
[0075] PID control basic formula:
[0076] Proportional term (P): u(t) = Kpe(t)
[0077] Integral term (I): u(t) = Ki∫e(t)dt
[0078] Differential term (D): Among them, Kp, Ki, Kd are proportional, integral, and differential coefficients respectively, and e(t) is the deviation signal, that is, the difference between the set value and the actual value;
[0079] Fuzzy PID control rules:
[0080] According to the temperature deviation and the rate of change of the deviation, the adjustment of the PID parameters is determined by fuzzy logic. If e(t) is negative and Δe(t) is negative, ΔKp, ΔKi, and ΔKd increase;
[0081] If e(t) is zero and Δe(t) is zero, keep Kp, Ki, and Kd unchanged;
[0082] Adaptive adjustment formula:
[0083] Dynamically adjust PID parameters according to system performance and environmental changes.
[0084] Kp=Kp0+ΔKp
[0085] Ki=Ki0+ΔKi
[0086] Kd=Kd0+ΔKd, where Kp0, Ki0, Kd0 are initial PID parameters, and ΔKp, ΔKi, ΔKd are parameter changes adjusted according to fuzzy logic or other optimization algorithms.
[0087] Through these steps and formulas, the algorithm can be effectively combined with the retort cage pan turning method to achieve more precise and automated temperature control, improve sterilization efficiency and product quality.
[0088] When in use, first place the material in the first sterilization cage tray, with the opening facing upward, and transport it to the position and be pressed under the action of the conveyor belt. Then the lifting cylinder drives the conveyor belt down to contact with the first sterilization cage tray. After the sterilization of the upper end is completed, the driving motor drives the driving gear to rotate, so that the driving disc drives the sterilization cage tray to rotate, and the first sterilization cage tray at the upper end is rotated to the opening facing downward. Because the conveyor belt is always in contact with the opening of the sterilization cage tray, the material falling onto the conveyor belt will not cause the material to be spilled. After the sterilization of the lower end is completed, the conveyor belt of the sterilization conveying component at the lower end moves down to directly convey the material to the next processing step. Because the conveyor belt contacts the opening of the sterilization cage tray, the drop of the material is small when it falls, and when encountering fragile or hard angled packaging, it is not easy to be damaged.
[0089] At the same time, when the second sterilization cage tray initially located at the lower end completes sterilization and transports the material through the conveyor belt, it is transferred to the upper end. At this time, the sterilization conveying component at the upper end transports the sterilization cage tray out, and fills the new sterilization cage tray filled with material or the sterilization cage tray to be transported out with material. The conveyor moves the sterilization cage tray into position and repeats the previous operation. The two sterilization cage trays can perform sterilization operations at the same time and in an orderly staggered manner, thereby improving work efficiency.
[0090] The present invention improves the sterilization efficiency through automated flipping operations, ensures that food is heated evenly, reduces material losses, and improves the continuity and stability of the production line. It reduces the need for manual operation, reduces labor intensity, improves product quality, and enhances the adaptability and automation level of the equipment. In addition, the method reduces energy consumption, improves equipment safety, achieves environmentally friendly food processing, and enhances the market competitiveness of the enterprise. At the same time, automated equipment is easy to maintain and clean, which helps to maintain the hygiene of the production line and food safety, while the integrated data management system facilitates real-time monitoring and recording of the sterilization process, which facilitates subsequent quality control and improvement. The staggered operation of the two sterilization cage trays improves the utilization efficiency and overall production capacity of the equipment, making the entire sterilization process more efficient and reliable.
[0091] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0092] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A method for turning over a sterilizing pot cage plate, characterized in that: The following steps are involved: S1 Material loading: The material to be sterilized is placed in the first sterilization cage tray, which is then automatically transported to the upper sterilization position and fixed and pressed after arriving; S2 Sterilization preparation: The first unloading conveyor descends to the opening of the first sterilization cage tray, ready to start the sterilization process; S3 position rotation: the sterilization cage tray and the discharge conveyor rotate 180° as a whole, so that the first sterilization cage tray moves to the lower sterilization position, and the second sterilization cage tray and the second discharge conveyor move to the upper sterilization position; S4 Material transfer and sterilization: While the first sterilization cage tray continues to sterilize, the second unloading conveyor moves up to send out the second sterilization cage tray to load new materials to be sterilized. After the material is filled, the second sterilization cage tray is sent back to the upper sterilization position; S5 Material unloading and conveying: After the first sterilization cage tray completes sterilization, the first unloading conveyor descends, causing the material to descend with it. Subsequently, the first unloading conveyor rotates to convey the sterilized material to the next production process; S6 cyclic operation: the above steps are repeated until all materials have been sterilized.
2. A method for turning over a retort pan according to claim 1, characterized in that: The component for transmitting the cage tray in S1 is a transmission conveyor, on which a limit sensor is provided. The limit sensor is electrically connected to a transmission motor of the transmission conveyor. The transmission motor drives a transmission chain to rotate. The transmission chain is installed on a transmission frame, and the transmission chain drives the sterilization cage tray to move laterally.
3. The method for turning over a retort pan according to claim 1, characterized in that: The component for fixing and pressing the cage tray in S1 is a pressing unit, which includes a pressing cylinder and a pressing rod. The pressing rod is rotatably installed on the conveying rack, one end of the pressing rod is rotatably connected to the telescopic end of the pressing cylinder, and the other end of the pressing rod is arranged corresponding to the flange of the sterilization cage tray.
4. The method for turning over a retort pan according to claim 1, characterized in that: The first unloading conveyor and the second unloading conveyor are both unloading conveyors, and the unloading conveyor includes a lifting cylinder and a conveyor belt connected to the lifting cylinder. Under the action of the lifting cylinder, the conveyor belt moves away from or close to the opening of the sterilization cage tray.
5. The method for turning over a retort pan according to claim 1, characterized in that: The rotating component in S3 includes a disc rotating seat, which is rotatably installed on a frame under the action of a driving device. The disc rotating seat includes driving discs arranged on both sides and a sterilization conveying component arranged between the two driving discs. The sterilization conveying component is provided with two and is symmetrically arranged about the center of the disc rotating seat, and is divided into an upper sterilization position and a lower sterilization position. The sterilization conveying component includes a sterilization cage tray, a conveying conveyor that drives the sterilization cage tray to move horizontally, and a lifting unloading conveyor. The sterilization cage tray includes a first sterilization cage tray and a second sterilization cage tray, and the unloading conveyor includes a first unloading conveyor and a second unloading conveyor.
6. A method for turning over a retort pan according to claim 5, characterized in that: The driving disc is rotatably matched with the supporting wheel arranged on the frame, and a driving gear is provided on the driving disc, and the driving gear is meshed with the driving teeth of the driving device. The driving teeth rotate under the action of the driving motor, and the driving teeth include active driving teeth and driven driving teeth meshed with each other. The active driving teeth are connected to the driving motor, and the driven driving teeth are meshed with the driving gear. A mounting support plate is provided on the driving disc.
7. The method for turning over a retort pan according to claim 5, characterized in that: A plurality of sterilization holes are arranged on the sterilization cage tray, and a flange is arranged on the sterilization cage tray.
8. The method for turning over a retort pan according to claim 1, characterized in that: It also includes a temperature control optimization algorithm, which specifically includes the following steps: A1 data collection and analysis, collecting data on temperature, pressure, and material properties during the sterilization process for algorithm training and model building; A2 feature extraction and model training uses the collected data for feature extraction, including temperature change rate and pressure change, and uses a deep learning framework to train a model suitable for a specific scenario. A3 adaptive control strategy, design an adaptive control strategy, combine feedback control with predictive control, use historical data and models to predict the future state of the system, and automatically adjust parameters; A4 exception handling and alarm mechanism, implements the exception handling mechanism, and triggers an alarm when the control system encounters data overflow, actuator failure, or control target deviates from the preset range; A5 Performance evaluation and optimization: define performance indicators, including control accuracy and response time, and conduct tests, and optimize the algorithm based on the evaluation results; A6 real-time monitoring and adjustment, real-time monitoring of temperature parameters, and adjustment of control strategies based on real-time data analysis results to ensure the stability and efficiency of the sterilization process;. A7 integration and expansion: Integrate the algorithm with the PLC control system to achieve cross-platform temperature control; Algorithm formula: PID control basic formula: Proportional term (P): u(t) = Kpe(t) Integral term (I): u(t) = Ki∫e(t)dt Differential term (D): Among them, Kp, Ki, Kd are proportional, integral, and differential coefficients respectively, and e(t) is the deviation signal, that is, the difference between the set value and the actual value; Fuzzy PID control rules: According to the temperature deviation and the rate of change of the deviation, the adjustment of the PID parameters is determined by fuzzy logic. If e(t) is negative and large and Δe(t) is negative and large, then ΔKp, ΔKi, and ΔKd increase; If e(t) is zero and Δe(t) is zero, keep Kp, Ki, and Kd unchanged; Adaptive adjustment formula: Dynamically adjust PID parameters according to system performance and environmental changes. Kp=Kp0+ΔKp Ki=Ki0+ΔKi Kd=Kd0+ΔKd, where Kp0, Ki0, Kd0 are initial PID parameters, and ΔKp, ΔKi, ΔKd are parameter changes adjusted according to fuzzy logic or other optimization algorithms.