Automatic mixing ultrasonic catalytic reaction system

Abstract

The invention discloses an automatic mixing ultrasonic catalytic reaction system, which is characterized in that a main control module is connected with a sensor module, a power supply module, an LCD (Liquid Crystal Display) module and a GPIO (General Purpose Input / Output) control module and is used for completing regulation and control of the whole system; the GPIO control module is connected with the ultrasonic module and the motor module, completes regulation and control of the ultrasonic module and the motor module under the control of the main control module, and feeds back the working state of the system; the LCD display module is used for displaying state information of the system, the ultrasonic module is used for controlling ultrasonic waves, and the motor module is used for controlling a motor; the sensor module is used for collecting various parameters of the reactor in the reaction process. According to the scheme, the functions of automatic uniform mixing, accurate temperature control and ultrasonic adjustment are integrated in a unified system, the system structure is simplified, the operation convenience is improved, the reaction conditions can be monitored and dynamically adjusted in real time, the requirement for human intervention is reduced, and the automation level of an experiment is improved.

Description

Technical Field

[0001] The invention belongs to the field of instrument control, and in particular relates to an automatic mixing ultrasonic catalytic reaction system. Background Art

[0002] With the continuous development of science and technology, people's requirements for precise control of chemical reaction processes are gradually increasing. Faced with complex and changeable reaction conditions, laboratories and industrial fields have put forward higher requirements for the control system of reactors. The automatic control technology of chemical reactors is a discipline that studies how to achieve precise management of chemical reaction conditions (such as temperature, pressure, mixing uniformity and energy input) through electronic control, sensor feedback and actuator operation. Through precise control of the reaction process, not only can the reaction efficiency and product quality be improved, but also energy consumption and operating costs can be significantly reduced.

[0003] Temperature control and mixing uniformity are two crucial factors in the control of chemical reactors. The accuracy of temperature control directly affects the rate and selectivity of the reaction, while the uniform mixing of the reactants ensures the stability and consistency of the reaction process. At the same time, ultrasonic technology, as an effective energy input method, has been widely used in many chemical reactions by accelerating chemical reactions, promoting uniform mixing and reducing reaction conditions. However, traditional reactor control systems usually have deficiencies in the integration of precise temperature control, automatic mixing and ultrasonic regulation functions, and are difficult to meet the high requirements of modern chemical research and industrial production.

[0004] With the rapid development of industries such as chemical, pharmaceutical, food processing and environmental treatment, the demand for efficient and precise control of chemical reaction processes is increasing. Traditional chemical reactors usually face the following challenges during the reaction process:

[0005] 1. Low mass transfer efficiency: In liquid-solid phase reactions, solid particles tend to settle at the bottom of the reactor, resulting in insufficient solid-liquid contact, greatly reducing the mass transfer efficiency and affecting the reaction rate and product quality.

[0006] 2. Unstable temperature control: Many chemical reactions are sensitive to temperature. Traditional reactors have difficulty maintaining a stable temperature during the reaction process. Especially in ultrasonic reactions, the heat generated by the cavitation effect can cause local temperature increases, requiring frequent water changes to control the temperature, which not only wastes resources but also increases operational complexity.

[0007] 3. Uneven mixing: In the absence of mechanical stirring or human intervention, the reactants are not mixed evenly, affecting the consistency and efficiency of the reaction.

[0008] 4. Low degree of automation: Traditional reactors mostly rely on manual monitoring and manual adjustment, which is not only cumbersome to operate, but also increases human errors, making it difficult to meet the requirements of modern industry for automation and precise control.

[0009] 5. The existing ultrasonic catalytic reactors still have deficiencies in terms of mixing uniformity, temperature control, and degree of automation.

[0010] Therefore, there is an urgent need for a controller system that can integrate automatic mixing, precise temperature control, and ultrasonic regulation functions to further improve the efficiency and stability of ultrasonic catalytic reactions, reduce resource waste, and simplify the operation process. This is exactly the technical problem that the present invention aims to solve. Summary of the invention

[0011] In response to the above problems, the purpose of the present invention is to provide an automatic mixing ultrasonic catalytic reaction system, which is particularly suitable for application scenarios in chemical reactors that require efficient and precise control. It can realize real-time monitoring and dynamic adjustment of key parameters in the chemical reaction process, thereby improving reaction efficiency, product quality and the degree of automation of operation.

[0012] The specific technical solution for achieving the purpose of the present invention is:

[0013] An automatic mixing ultrasonic catalytic reaction system includes a main control module, a power module, an LCD display module, a GPIO control module, a sensor module, an ultrasonic module, and a motor module;

[0014] The main control module is connected with the sensor module, the power module, the LCD display module, and the GPIO control module to complete the regulation of the entire system;

[0015] The GPIO control module is connected to the ultrasonic module and the motor module, and controls the ultrasonic module and the motor module under the control of the main control module, and feeds back the working status of the system;

[0016] The LCD display module is used to display the status information of the system, the ultrasonic module is used to realize the control of the ultrasonic wave, and the motor module is used to realize the control of the motor;

[0017] The sensor module is used to collect various parameters of the reactor during the reaction process.

[0018] Furthermore, the ultrasonic module includes an ultrasonic control unit and an ultrasonic generator;

[0019] The ultrasonic control unit is connected to the GPIO control module, and the ultrasonic generator is connected to the GPIO control module via a relay, and is used to generate high-frequency ultrasonic waves under control to enhance the mixing and reaction of reactants;

[0020] The motor module includes a motor control unit and a motor, wherein the motor includes a lifting motor and a swing motor, the motor control unit is connected to the GPIO control module, and the lifting motor and the swing motor are connected to the GPIO control module through a relay, so as to adjust the position of the reaction container under control and ensure uniform mixing of the reactants.

[0021] Furthermore, the system also includes a refrigeration module and an LED module;

[0022] The GPIO control module is connected to the refrigeration module through a relay, and its on and off are controlled under the control of the main control module;

[0023] The LED module is connected to the GPIO control module to indicate the working status of the system;

[0024] The sensor module includes a temperature sensor, a pressure sensor, and a position sensor, which are respectively used to collect changes in parameters and positions during the reaction process.

[0025] Furthermore, the operation process of the system is as follows:

[0026] Step 1: After initializing each module, the start-up condition detection is performed, including whether the status of each module in the system is normal, whether the reactor is ready or the preset reaction parameters have been set. If the start-up conditions are met, the temperature sensor in the sensor module is started;

[0027] Step 2: The temperature sensor monitors the internal temperature of the reactor in real time, continuously collects temperature data in the reactor, and analyzes it through a built-in algorithm to determine whether the temperature has reached the set constant temperature condition. If the constant temperature condition is reached, the sensor module feeds back the information to the main control module through the GPIO control module;

[0028] Step 4: After the main controller module receives feedback that the constant temperature condition is met, the GPIO control module controls the motor module to start, drives the reactor to move to a preset position through the lifting motor, and senses the reactor position in real time through the position sensor;

[0029] Step 5, when the reactor reaches the preset position, the main controller module controls the swing motor of the motor module to start through the GPIO control module to control the uniform mixing of the reactants in the reactor. At the same time, the main controller module controls the ultrasonic module to start the ultrasonic operation through the GPIO control module to optimize the reaction effect;

[0030] Step 6: After the reaction is completed, the main controller module controls the ultrasonic module to stop working through the GPIO control module, and controls the lifting motor of the motor module to start driving the reactor to move to the initial position;

[0031] Step 7: After the reactor returns to its initial position, the temperature sensor stops working, and the temperature control operation inside the reactor ends. At the same time, the status information of this reaction is fed back.

[0032] Furthermore, the operation process of the system may also be:

[0033] Step 1: After initializing each module, the starting condition detection is performed, including whether the status of each module in the system is normal, whether the reactor is ready or the preset reaction parameters have been set. If the starting conditions are met, the motor module is started;

[0034] Step 2: Start the motor module, drive the reactor to a preset position through the lifting motor, and start the temperature sensor in the sensor module;

[0035] Step 3: Monitor the temperature inside the reactor in real time based on the temperature sensor, continuously collect the temperature data inside the reactor, and use the built-in algorithm to analyze the temperature change to determine whether the preset constant temperature condition has been reached;

[0036] Step 4: When it is detected that the temperature inside the reactor has reached the preset constant temperature condition, the main controller module controls the ultrasonic module to start through the GPIO control module, and the ultrasonic control module performs ultrasonic operation according to preset parameters to ensure that the reactants are fully mixed inside the reactor and promote the reaction efficiency through ultrasonic vibration;

[0037] Step 5: After the ultrasonic operation is completed, the system stops the operation of the ultrasonic control module. At this time, the mixing and reaction process of the reactants have been effectively processed, the ultrasonic task is completed, and the system enters the reaction chamber reset stage;

[0038] Step 6: After the ultrasonic task is completed and stopped, the main controller module controls the lifting motor of the motor module through the GPIO control module to start, and drives the reaction chamber to return from the current working position to the initial position;

[0039] Step 7: After the reactor returns to its initial position, the temperature sensor stops working, and the temperature control operation inside the reactor ends. At the same time, the status information of this reaction is fed back.

[0040] Furthermore, the main control module includes a main control chip U1,

[0041] The VDD1, VDD2, and VDD3 pins of the main control chip are connected to a 3.3V power supply, the VSS1, VSS2, and VSS3 pins are grounded, and the VDDA and VSSA pins are connected to an analog power supply and an analog ground, respectively;

[0042] The OSC_IN pin and OSC_OUT pin of the main control chip are connected to the first crystal oscillator and the first capacitor and the second capacitor to provide a 25MHz main clock signal, and the PC14 pin and PC15 pin are connected to the external 32.768kHz first crystal oscillator and the third capacitor and the fourth capacitor as a low-frequency clock source of the clock;

[0043] The NRST pin of the main control chip is connected to the reset circuit through a pull-up resistor and a decoupling capacitor C16, so as to reset the microcontroller;

[0044] The PA13 pin and PA14 pin of the main control chip are connected to the debugging interface for programming and debugging the controller through the SWD protocol; the PA15 pin, PB3 pin, and PB4 pin are connected to the JTAG interface pins for supporting the JTAG debugging mode;

[0045] The BOOT0 pin and BOOT1 pin of the main control chip are connected to the 3.3V power supply and GND respectively through jumpers JP2 and JP3 for selecting the boot mode;

[0046] The VBAT pin of the main control chip is connected to the battery, and the power supply is selected through the J9 interface to provide power for the RTC and the backup register when the main power supply is turned off;

[0047] The PA0-PA7 pins, PA8-PA15 pins, PB0-PB15 pins, PC0-PC15 pins, PD0-PD15 pins, and PE0-PE15 pins of the main control chip are respectively connected to external devices and used as general input and output;

[0048] The NRST pin of the main control chip is connected to a manual reset circuit to ensure that the system can be manually reset when necessary.

[0049] Further, the main control module also includes a CAN transceiver, the CAN1_TX pin of the CAN transceiver is connected to the PD1 pin of the main control chip for sending CAN data, and the CAN1_RX pin of the CAN transceiver is connected to the PD0 pin of the main control chip for receiving CAN data; the GND pin of the CAN transceiver is grounded, and the VCC pin is connected to the +3.3V power supply to provide an operating voltage for the CAN transceiver; the R pin of the CAN transceiver is grounded for setting the transceiver operating mode, and the RS pin is grounded through an eighth resistor for controlling the operating mode of the transceiver;

[0050] The CANH pin and CANL pin of the CAN transceiver are connected to the high-level and low-level signal lines of the CAN bus through the twenty-second resistor and the twenty-third resistor respectively; the filter capacitor is connected between the VCC and GND of the CAN transceiver U6 for power decoupling, filtering out high-frequency noise on the power line, and ensuring stable operation of the CAN transceiver.

[0051] Further, the power supply module includes a voltage stabilizer and a first switch;

[0052] The S1 pin and the S2 pin of the first switch are connected to a +5V power supply respectively, and the S pin is used to switch the output, connected to the +5V power supply or disconnected, to control whether the subsequent circuit is powered on;

[0053] The Vin pin of the voltage regulator is connected to the output end of the first switch and receives a +5V power supply, the Vout pin of the voltage regulator outputs a stable 3.3V voltage, and the GND pin is grounded;

[0054] Decoupling capacitors are set between the Vin pin, Vout pin and ground of the voltage regulator to reduce power ripple and noise and ensure the stability of the power supply;

[0055] The Vout pin of the voltage regulator is connected to the indicator light LED1, and a current limiting resistor is connected in series between the indicator light and the Vout pin to ensure that the indicator light works under a safe current.

[0056] Compared with the prior art, the present invention has the following beneficial effects:

[0057] (1) The solution of the present invention integrates automatic mixing, precise temperature control and ultrasonic adjustment functions into a unified system based on the GPIO control module, ultrasonic module, motor module and sensor module, which simplifies the system structure, improves the convenience of operation, can monitor and dynamically adjust the reaction conditions in real time, reduces the need for human intervention, and improves the automation level of the experiment;

[0058] (2) The scheme of the present invention can adjust parameters according to different reaction requirements and conditions in actual application, and is widely applicable to experiments and production processes in the fields of chemical industry, pharmaceuticals, materials science, etc. Its built-in LCD display module and LED module can ensure that the system can respond quickly under abnormal circumstances to avoid equipment damage and experimental failure.

[0059] The present invention is further described below in conjunction with specific implementation modes. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 It is a schematic diagram of the principle of the automatic mixing ultrasonic catalytic reaction system of the present invention.

[0061] Figure 2It is a schematic diagram of the operation flow of the temperature sensing and motor drive control of the present invention.

[0062] Figure 3 It is a schematic diagram of the operation flow of the independent control of temperature sensing of the present invention.

[0063] Figure 4 Schematic diagram of the main control module circuit of the automatic mixing ultrasonic catalytic reaction system in an embodiment of the present invention.

[0064] Figure 5 It is a schematic diagram of the ADC circuit of the automatic mixing ultrasonic catalytic reaction system in an embodiment of the present invention.

[0065] Figure 6 It is a schematic diagram of the CAN circuit of the automatic mixing ultrasonic catalytic reaction system in an embodiment of the present invention.

[0066] Figure 7 This is a circuit schematic diagram of the NAND Flash and LCD modules of the automatic mixing ultrasonic catalytic reaction system in an embodiment of the present invention.

[0067] Figure 8 This is a schematic diagram of the LED indicator lights, buttons and expansion circuit of the automatic mixing ultrasonic catalytic reaction system in an embodiment of the present invention.

[0068] Fig. 9 It is a schematic diagram of the SWDIO circuit of the automatic mixing ultrasonic catalytic reaction system in an embodiment of the present invention.

[0069] Fig.10 1 is an I2C circuit schematic diagram of an automatic mixing ultrasonic catalytic reaction system in an embodiment of the present invention.

[0070] Fig.11 It is a schematic diagram of a power supply module of an automatic mixing ultrasonic catalytic reaction system in an embodiment of the present invention.

[0071] Fig.12 It is a schematic diagram of the SDIO circuit of the automatic mixing ultrasonic catalytic reaction system in an embodiment of the present invention.

[0072] Fig.13 1 is a schematic diagram of the SPI Flash memory circuit of the automatic mixing ultrasonic catalytic reaction system in an embodiment of the present invention.

[0073] Fig.14 It is a circuit schematic diagram of USART1 and USART2 of the automatic mixing ultrasonic catalytic reaction system in an embodiment of the present invention.

[0074] Fig.15 Schematic diagram of the USB circuit of the automatic mixing ultrasonic catalytic reaction system in the embodiment of the present invention. DETAILED DESCRIPTION

[0075] Example

[0076] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0077] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "an kind" and / or "the" do not refer to the singular and may also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0078] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0079] Combination Figure 1 , an automatic mixing ultrasonic catalytic reaction system, including a main control module, a power module, an LCD display module, a GPIO control module, a sensor module, an ultrasonic module, and a motor module;

[0080] The main control module is connected with the sensor module, the power module, the LCD display module, and the GPIO control module to complete the regulation of the entire system;

[0081] The GPIO control module is connected to the ultrasonic module and the motor module, and controls the ultrasonic module and the motor module under the control of the main control module, and feeds back the working status of the system;

[0082] In this embodiment, a GD32 series microcontroller is used as the core control unit of the system, which is responsible for coordinating the work of various functional modules; the module collects data from sensors such as temperature and pressure in real time through the ADC interface, uses GPIO and PWM signals to control relays, refrigerators, ultrasonic generators, lifting and swing motors, and updates the content of the LCD display through the SPI interface.

[0083] The GPIO control module manages various input and output devices in the system through multiple GPIO pins, including LED indicators, relays, ultrasonic control modules, and motor control modules. The GPIO control module is responsible for processing user input signals, controlling the switch status of the device, and providing real-time feedback on the working status of the system.

[0084] Among them, the relay is used to control the power on and off of high-power equipment such as refrigerators, ultrasonic generators and motors. Through the relay, the microcontroller can accurately control the start and stop of these devices to achieve automated management and safety protection of the reaction process. When the reactor temperature needs to be lowered, the microcontroller connects the refrigerator power supply through the relay; when the chemical reaction or mixing efficiency needs to be enhanced, the relay controls the power supply of the ultrasonic generator and motor to ensure that the equipment operates according to the set conditions. In addition, the relay cuts off the power supply when the equipment is abnormal to prevent the equipment from overloading or overheating, ensuring the safety and stability of the system.

[0085] The refrigerator is used to control the temperature in the reactor to prevent overheating or maintain low temperature conditions, especially during ultrasonic treatment, by absorbing excess heat to ensure a stable reaction environment. The refrigerator can adjust the cooling capacity according to the instructions of the main controller to optimize the reaction conditions.

[0086] The ultrasonic generator is used to generate high-frequency ultrasonic waves to promote chemical reactions and enhance the mixing effect of reactants. The ultrasonic generator converts electrical energy into mechanical vibrations and transmits them to the reaction medium in the form of ultrasonic waves. It uses the cavitation effect to accelerate the molecular movement of reactants and improve the reaction rate and efficiency. The ultrasonic generator can prevent the reactants from settling in the container and ensure uniform mixing. The microcontroller can adjust the frequency and power of the ultrasonic waves to meet different experimental requirements and optimize the reaction conditions.

[0087] The lifting motor and the swing motor are used to adjust the position of the reaction vessel and ensure uniform mixing of the reactants. The lifting motor adjusts the height of the reaction vessel to keep it at the best distance from the ultrasonic generator, or optimizes the position of the vessel during different experiments to improve the treatment effect and temperature control efficiency. The swing motor drives the reaction vessel to swing left and right to ensure continuous and uniform mixing of the reactants, prevent solid matter from settling, and improve reaction consistency and efficiency.

[0088] The power supply module provides stable voltage and current for each submodule and device in the system. This module ensures that the main controller, refrigerator, ultrasonic generator, lifting and swing motor equipment work normally under stable voltage conditions to avoid system failures caused by voltage fluctuations.

[0089] The LCD display module is connected to the main controller via the SPI interface and is used to display the real-time status of the system, reaction parameters and alarm information. Users can view important information such as the current temperature, ultrasonic power, stirring status, etc. through the LCD display module and make adjustments as needed.

[0090] The LED indicator lights are used to indicate different working states of the system, including power on, equipment operation, and fault alarm.

[0091] The sensor module integrates a temperature sensor and a pressure sensor and is connected to the main controller through an ADC interface. The sensor module is responsible for collecting changes in key parameters during the reaction process and feeding the data back to the main controller to adjust the operating state of the system and ensure the stability and accuracy of the reaction conditions.

[0092] The LCD display module is used to display the status information of the system, the ultrasonic module is used to realize the control of the ultrasonic wave, and the motor module is used to realize the control of the motor;

[0093] The sensor module is used to collect various parameters of the reactor during the reaction process. It integrates a temperature sensor and a pressure sensor, is connected to the main controller through an ADC interface, and the data is fed back to the main controller to adjust the operating state of the system and ensure the stability and accuracy of the reaction conditions.

[0094] More specifically, the ultrasonic module includes an ultrasonic control unit and an ultrasonic generator;

[0095] The ultrasonic control unit is connected to the GPIO control module, and the ultrasonic generator is connected to the GPIO control module through a relay, and is used to generate high-frequency ultrasonic waves under control, and the frequency and power of the ultrasonic waves are adjusted through PWM signals to adapt to different reaction requirements. The ultrasonic control unit can dynamically adjust the working parameters of the ultrasonic waves according to the real-time monitoring data, thereby improving the efficiency and uniformity of the reaction;

[0096] The motor module includes a motor control unit and a motor, wherein the motor includes a lifting motor and a swing motor, the motor control unit is connected to the GPIO control module, the lifting motor and the swing motor are connected to the GPIO control module through a relay, and the speed and direction of the motor are adjusted through an H-bridge circuit and a PWM signal, so as to adjust the position of the reaction container under control and ensure uniform mixing of the reactants, avoid solid deposition, and further improve the efficiency and consistency of the reaction.

[0097] Combination Figure 2 and Figure 3 , this system has two kinds of operation control logic during operation:

[0098] (1) Operation mode of temperature sensing and motor drive control: In the entire execution process, the logic of normal operation of this system is to continuously find start conditions, stop conditions and output results. After the system starts running, the temperature sensor control module is started first. When the constant temperature condition is reached, the motor control module starts and drives the reaction chamber to fall; when the reaction chamber reaches the predetermined position condition, the motor control module starts the shaking table instruction, and drives the ultrasonic control module to start and execute the ultrasonic operation instruction until the instruction task is completed. The ultrasonic stops running, the reaction chamber automatically returns to its initial position, and outputs this result to the constant temperature control module to execute the stop temperature control condition, thereby completing all tasks;

[0099] In the case where the requirements for the reaction temperature variation range are not high, based on this control logic, on the one hand, the reaction conditions set by ultrasonic catalysis / synthesis can be effectively realized, and on the other hand, the uniform reactivity requirements can be achieved.

[0100] (2) Temperature sensor independent control operation mode: In the entire execution process, the logic of normal operation of this system is to determine whether the temperature control module has reached the start and stop conditions. After the system starts running, the motor control module starts and drives the reaction chamber to fall to the set position, starts the temperature sensor control module, and when the constant temperature condition is reached, drives the ultrasonic control module to start and execute the ultrasonic operation instruction until the instruction task is completed, the ultrasonic stops running, the reaction chamber automatically returns to the initial position, and outputs this result to the constant temperature control module to execute the stop temperature control condition, thereby completing all tasks;

[0101] This type of control roadbed is more suitable for reactions that require high precision in temperature change control, that is, the need to achieve constant temperature ultrasonic catalysis / synthesis reactions without using a swing motor.

[0102] Among them, the operation process of the temperature sensing and motor drive control operation mode is as follows:

[0103] Step 1: After initializing each module, the start-up condition detection is performed, including whether the status of each module in the system is normal, whether the reactor is ready or the preset reaction parameters have been set. If the start-up conditions are met, the temperature sensor in the sensor module is started;

[0104] Step 2: The temperature sensor monitors the internal temperature of the reactor in real time, continuously collects temperature data in the reactor, and analyzes it through a built-in algorithm to determine whether the temperature has reached the set constant temperature condition. If the constant temperature condition is reached, the sensor module feeds back the information to the main control module through the GPIO control module;

[0105] Step 4: After the main controller module receives feedback that the constant temperature condition is met, the GPIO control module controls the motor module to start, drives the reactor to move to a preset position through the lifting motor, and senses the reactor position in real time through the position sensor;

[0106] Step 5, when the reactor reaches the preset position, the main controller module controls the swing motor of the motor module to start through the GPIO control module to control the uniform mixing of the reactants in the reactor. At the same time, the main controller module controls the ultrasonic module to start the ultrasonic operation through the GPIO control module to optimize the reaction effect;

[0107] Step 6: After the reaction is completed, the main controller module controls the ultrasonic module to stop working through the GPIO control module, and controls the lifting motor of the motor module to start driving the reactor to move to the initial position;

[0108] Step 7: After the reactor returns to its initial position, the temperature sensor stops working, and the temperature control operation inside the reactor ends. At the same time, the status information of this reaction is fed back.

[0109] The operation process of the temperature sensor independent control operation mode is as follows:

[0110] Step 1: After initializing each module, the starting condition detection is performed, including whether the status of each module in the system is normal, whether the reactor is ready or the preset reaction parameters have been set. If the starting conditions are met, the motor module is started;

[0111] Step 2: Start the motor module, drive the reactor to a preset position through the lifting motor, and start the temperature sensor in the sensor module;

[0112] Step 3: Monitor the temperature inside the reactor in real time based on the temperature sensor, continuously collect the temperature data inside the reactor, and use the built-in algorithm to analyze the temperature change to determine whether the preset constant temperature condition has been reached;

[0113] Step 4: When it is detected that the temperature inside the reactor has reached the preset constant temperature condition, the main controller module controls the ultrasonic module to start through the GPIO control module, and the ultrasonic control module performs ultrasonic operation according to preset parameters to ensure that the reactants are fully mixed inside the reactor and promote the reaction efficiency through ultrasonic vibration;

[0114] Step 5: After the ultrasonic operation is completed, the system stops the operation of the ultrasonic control module. At this time, the mixing and reaction process of the reactants have been effectively processed, the ultrasonic task is completed, and the system enters the reaction chamber reset stage;

[0115] Step 6: After the ultrasonic task is completed and stopped, the main controller module controls the lifting motor of the motor module through the GPIO control module to start, and drives the reaction chamber to return from the current working position to the initial position;

[0116] Step 7: After the reactor returns to its initial position, the temperature sensor stops working, and the temperature control operation inside the reactor ends. At the same time, the status information of this reaction is fed back.

[0117] Combination Figure 4 The main control module includes a main control chip U1. In this embodiment, a GD32F103C8T6 microcontroller is selected as the core main control module to coordinate and manage various functional modules of the entire system.

[0118] Specifically, the VDD1, VDD2, and VDD3 pins of the main control chip U1 are connected to a 3.3V power supply, the VSS1, VSS2, and VSS3 pins are grounded, and the VDDA and VSSA pins are connected to an analog power supply and an analog ground, respectively;

[0119] The OSC_IN pin and OSC_OUT pin of the main control chip U1 are connected to the first crystal oscillator Y1 and the first capacitor C1 and the second capacitor C2 to provide a 25MHz master clock signal, and the PC14 pin and PC15 pin are connected to the external 32.768kHz first crystal oscillator Y2 and the third capacitor C3 and the fourth capacitor C4 as a low-frequency clock source;

[0120] The NRST pin of the main control chip U1 is connected to the reset circuit through a pull-up resistor R6 and a decoupling capacitor C16, for resetting the microcontroller;

[0121] The PA13 pin and the PA14 pin of the main control chip U1 are connected to the debugging interface for programming and debugging the controller through the SWD protocol; the PA15 pin, the PB3 pin, and the PB4 pin are connected to the JTAG interface pins for supporting the JTAG debugging mode;

[0122] The BOOT0 pin and BOOT1 pin of the main control chip U1 are connected to the 3.3V power supply and GND respectively through jumpers JP2 and JP3 for selecting the boot mode;

[0123] The VBAT pin of the main control chip U1 is connected to the battery, and the power supply is selected through the J9 interface to provide power for the RTC and the backup register when the main power supply is turned off;

[0124] The PA0-PA7 pins, PA8-PA15 pins, PB0-PB15 pins, PC0-PC15 pins, PD0-PD15 pins, and PE0-PE15 pins of the main control chip U1 are respectively connected to external devices and used as general-purpose input and output (GPIO), which can be configured to different functions, such as digital input / output, analog input, PWM output, etc.;

[0125] Decoupling capacitors, C5-C11 (0.1uF) These capacitors are connected between the VDD pin and the VSS pin of the main control chip U1, which are used for power decoupling, reducing power noise and ensuring the stable operation of the microcontroller;

[0126] In addition, the NRST pin of the main control chip U1 is connected to a manual reset circuit to ensure that the system can be manually reset when necessary.

[0127] Combination Figure 5 , which is the ADC interface circuit of the main control module, including the ADC part:

[0128] ADC input pin (PC3 / ADC123_IN13) This pin is connected to the TP2 test point, marked as ADin. The analog signal can be connected here for ADC collection; the analog signal passes through a low-pass filter composed of a 1kΩ resistor R12 and a 0.1μF capacitor C27 to filter out high-frequency noise in the signal. The signal is also adjusted by an adjustable potentiometer VR1 (10kΩ) to ensure that the signal input to the ADC pin is stable. Finally, the filtered and voltage-adjusted signal is sent to the PC3 pin for ADC analog-to-digital conversion.

[0129] DAC section:

[0130] DAC output pins (PA4 / DAC_OUT1 and PA5 / DAC_OUT2) PA4 and PA5 are two output channels of DAC, converting digital signals into analog signals. These two pins are connected to Pin 1 and Pin 3 of connector JP7 respectively. The generated analog signal can be led out through JP7 for use by external circuits. Pin 2 of JP7 is grounded to provide a stable reference ground.

[0131] AFIO configuration, PA5 pin This pin is used as AFIO (alternate function I / O) pin. For specific configuration, refer to the SPI schematic diagram to ensure the correct function setting.

[0132] Combination Figure 6, the main control module also includes a CAN transceiver U6, the CAN1_TX pin of the CAN transceiver U6 is connected to the PD1 pin of the main control chip U1 for sending CAN data, and the CAN1_RX pin of the CAN transceiver U6 is connected to the PD0 pin of the main control chip U1 for receiving CAN data; the GND pin of the CAN transceiver U6 is grounded, and the VCC pin is connected to the +3.3V power supply to provide a working voltage for the CAN transceiver; the R pin of the CAN transceiver U6 is grounded for setting the transceiver working mode, and the RS pin is grounded through the eighth resistor R8 for controlling the working mode of the transceiver;

[0133] The CANH pin and CANL pin of the CAN transceiver U6 are connected to the high-level and low-level signal lines of the CAN bus through the twenty-second resistor R22 and the twenty-third resistor R23 respectively, and the transceiver is controlled to communicate with other nodes in the CAN network through these two pins; the filter capacitor C33 is connected between the VCC and GND of the CAN transceiver U6 for power decoupling, filtering out high-frequency noise on the power line, and ensuring stable operation of the CAN transceiver.

[0134] Multi-function pins P2 and P3, these two interfaces can be connected to EXMC (external memory controller) or CAN function through jumper selection. The specific connection method depends on the shorting option used, providing flexible pin multiplexing function.

[0135] Combination Figure 7The circuit schematic diagram of the automatic mixing ultrasonic catalytic reaction system shows the circuit of NAND Flash and LCD module, where VDD1 (Pin 12) and VDD2 (Pin 37) of the NAND Flash part (HY27UF081G2A) are connected to the +3.3V power supply to provide the working voltage for the NAND Flash; VSS1 (Pin 11) and VSS2 (Pin 36) are connected to GND to provide ground connection; data line connection: EMC_D0-D7 (Pin 29-36) is connected to the data bus of EXMC, responsible for data read and write transmission. Address line and control signal EMC_A16 (Pin44) and EMC_A17 (Pin 41) are connected to the address line of EXMC to specify the address of data storage. EMC_NWE (Pin 8) is connected to the write enable signal of EXMC for writing data; EMC_NOE (Pin 7) is connected to the read enable signal of EXMC for reading data; NAND_CS (Pin 9) is connected to the chip select signal of EXMC for selecting NANDFlash; EMC_NWAIT (Pin 6) is used for the wait control signal between NAND Flash and EXMC to ensure the synchronization of data transmission; additional circuit R63, R66 (10kΩ) pull-up resistors are connected to their respective control signal lines to ensure that the signal lines remain at a high level when not activated; C51 (0.1μF, 50V) decoupling capacitor is connected between VDD and GND to ensure power supply stability.

[0136] LCD module power supply: VDD pin is connected to +3.3V power supply, the power supply of LCD module. GND is connected to system ground; data line connection: EMC_D0-D15 (pins 1-16) are connected to the data bus of EXMC to provide data transmission function; control signal: LCD_CS (pin 17) is connected to the chip select signal of EXMC to select LCD module; EMC_NWE (pin 18) is connected to the write enable signal of EXMC for data writing operation; EMC_NOE (pin 19) is connected to the read enable signal of EXMC for data reading operation; NRST (pin 20) is connected to the reset signal line for resetting LCD; PA6 (SPI1_MISO), PA7 (SPI1_MOSI), PA5 (SPI1_SCK) pins are used for LCD configuration and communication through SPI interface. BackLight pin and TP_INT pin are connected to the backlight control and touch screen interrupt signal lines to control LCD backlight and respond to touch screen events;

[0137] Interface Connections JP23 and JP24: These jumpers are used to connect the LCD module and NAND Flash module to the external interface, providing signal and power connections.

[0138] Multi-function pin configuration, AFIO configuration: PD0, PD1 (and other EXMC control pins) can be configured to be used as the address or data line of the EXMC, or as the control signal of the CAN interface.

[0139] Combination Figure 8 , is a connection diagram of the LED indicator, buttons and expansion pins of the automatic mixing ultrasonic catalytic reaction system. The LED indicator and buttons are connected to the MCU through GPIO pins (such as PC0, PC2, PE0, PE1 for LED control, PA0, PC13, PE14 for key input) for status indication and user interaction. The external 8MHz crystal oscillator provides the clock signal to the MCU through the L_OSC_IN and L_OSC_OUT pins, and the L_NRST pin is connected to the reset circuit for system reset control.

[0140] Specifically:

[0141] LED section: LED indicators: LED1 to LED5 (LED0603) are connected to the GPIO pins of the microcontroller through current limiting resistors R13 to R16 (470Ω), that is, LED1 is connected to the PC0 pin (through R13); LED2 is connected to the PC2 pin (through R14); LED3 is connected to the PE0 pin (through R15); LED4 is connected to the PE1 pin (through R16); LED5 is connected to other GPIO pins, similar to the connection method of other LEDs;

[0142] Key part, key connection: KEY1, KEY2, KEY3 are pulled up to +3.3V through resistors R17, R18, R19 (10kΩ), and decoupled through capacitors C28, C29, C30 (0.1μF, 50V), and connected to the GPIO pins of the microcontroller; that is, KEY1 is connected to the PA0 pin. KEY2 is connected to the PC13 pin. KEY3 is connected to the PB14 pin;

[0143] In the extension pin part, the extension pin headers (JP8, JP9, JP10, JP11) bring out multiple GPIO pins of the microcontroller to provide flexible interface expansion functions. Each extension pin module contains the connection of multiple GPIO pins and the lead-out of GND and +3.3V power supply; specifically, JP8: including PE2, PE4, PE6, PC13, PC15, PA1, PA3, PA5, PA7, PB1, PB3, PB5, PB7, PB9, PB11; JP9: including PA4, PA6, PA8, PA10, PB0, PB2, PB4, PB6, PB8, PB10, PB12, PB14, PB16, PB18; JP10: including PB13, PB15, PC6, PC8, PC10, PC12, PD1, PD3, PD5, PD7, PD9, PD11, PD13, PD15. JP11: includes PC14, PC16, PD2, PD4, PD6, PD8, PD10, PD12, PD14, PE0, PE2, PE4, PE6, PE8.

[0144] See also Fig. 9 , which is the SWDIO circuit schematic diagram of the automatic mixing ultrasonic catalytic reaction system. The specific connections are as follows:

[0145] MCU SWD (debug interface), JP100 (4-pin debug interface): SWDIO (Pin 2) is connected to the PA13 pin for the SWD data line; SWCLK (Pin 3) is connected to the PA14 pin for the SWD clock line. GND (Pin 4) is grounded;

[0146] HSE (high frequency clock) circuit, crystal oscillator circuit: Y101 (8MHz crystal oscillator) is connected to L_OSC_IN (Pin 5) and L_OSC_OUT (Pin 6) pins to provide the main clock signal; capacitors C100 and C102 (20pF) are connected between the two ends of the crystal oscillator and the ground to stabilize the oscillation frequency of the crystal oscillator; resistor R101 (1MΩ) is connected in parallel at both ends of the crystal oscillator to reduce the startup time of the oscillator;

[0147] Reset circuit, NRST pin (Pin 7): R102 (10kΩ) is connected to +3.3V as a pull-up resistor to ensure that the reset signal remains high under normal circumstances. C103 (0.1μF) is connected between the NRST pin and ground to prevent false reset caused by power supply noise;

[0148] USB interface, Mini USB interface (CN100): VCC is connected to the +5V power supply to power the USB interface. D- and D+ (Pins 2 and 3) are connected to the PA11 (USB_DM) and PA12 (USB_DP) pins of the microcontroller respectively for USB data transmission; resistors R105 and R106 (22Ω) are connected in series on the D- and D+ lines to play the role of impedance matching to ensure the integrity of the USB signal; R107 (1.5kΩ) is connected to the USB_DP line for pull-up resistance to indicate USB full-speed mode. Capacitor C104 (470pF) is connected between the USB signal line and ground to filter out high-frequency noise;

[0149] GPIO pins and LEDs, LED connections: LED1 and LED2 are connected to the PB0 and PB1 pins respectively through current limiting resistors R109 and R110 (1kΩ);

[0150] Power supply decoupling, C106, C107, C108 (0.1μF decoupling capacitors) are connected between VDD and VSS respectively for power supply decoupling to reduce the impact of power supply noise on the microcontroller.

[0151] See also Fig.10 , is the I2C circuit schematic diagram of the automatic mixing ultrasonic catalytic reaction system of this embodiment. I2C is used to communicate with EEPROM (such as AT24C02C-SSHM-T). The I2C interface is connected to the EEPROM through the PB6 (SCL) and PB7 (SDA) pins to store experimental configurations or system parameters. The CAN interface is connected to the CAN transceiver through the PD0 (RX) and PD1 (TX) pins to achieve CAN bus communication. In the Nand Flash and LCD part, Nand Flash is connected to the MCU through the EMC_D0-D7, EMC_A16, EMC_A17 and NAND_CS pins of the EXMC interface, and the LCD is connected to the MCU through the EMC_D0-D15 and LCD_CS pins to achieve data display and storage.

[0152] The specific connection conditions are as follows:

[0153] EEPROM (AT24C02C-SSHM-T) pin configuration: Pin 1 (A0), Pin 2 (A1), Pin 3 (A2) address selection pins, grounded to set the address of the EEPROM; Pin 4 (GND) grounded to provide a reference ground for the EEPROM; Pin 5 (SDA) connected to the I2C data line (PB7 pin) for I2C data transmission; Pin 6 (SCL) connected to the I2C clock line (PB6 pin) for I2C clock signal transmission. Pin 7 (WP) write protection pin, connected to ground to disable the write protection function; Pin 8 (VCC) connected to the +3.3V power supply to provide operating voltage for the EEPROM.

[0154] I2C interface, PB6 (I2C1_SCL) and PB7 (I2C1_SDA): PB6 is connected to the SCL pin, pulled up to +3.3V through R10 (4.7kΩ), providing the I2C clock signal; PB7 is connected to the SDA pin, pulled up to +3.3V through R11 (4.7kΩ), providing the I2C data transmission function;

[0155] Power supply and decoupling, connect C26 (0.1μF, 50V) between VCC and GND as a decoupling capacitor to filter out power supply noise and ensure stable operation of the EEPROM; VCC is connected to the +3.3V power supply to power the EEPROM.

[0156] Combination Fig.11 The power module converts the +5V power supply into a stable 3.3V voltage through the LM1117-3.3 voltage regulator to supply the MCU and other modules. The power module includes a voltage regulator U2 and a first switch SW1;

[0157] The S1 pin and S2 pin of the first switch SW1 are connected to a +5V power supply respectively, and the S pin is used to switch the output, connected to the +5V power supply or disconnected, to control whether the subsequent circuit is powered on;

[0158] The Vin pin of the voltage regulator U2 is connected to the output end of the first switch SW1 to receive a +5V power supply, the Vout pin of the voltage regulator U2 outputs a stable 3.3V voltage, and the GND pin is grounded;

[0159] Decoupling capacitors are set between the Vin pin and Vout pin of the voltage regulator U2 and the ground to reduce power ripple and noise and ensure the stability of the power supply;

[0160] The Vout pin of the voltage regulator U2 is connected to the indicator light LED1, and a current limiting resistor is connected in series between the indicator light LED1 and the Vout pin to ensure that the indicator light LED1 works under a safe current.

[0161] See also Fig.12 , which is the SDIO circuit of the automatic mixing ultrasonic catalytic reaction system, is used for data communication with the TF card (MicroSD card). The specific connection is as follows:

[0162] SDIO interface pins, connected to the microcontroller pins: PC11 (SDIO_DAT3) is used for data line 3 transmission; PD2 (SDIO_CMD) is used to send command signals; PC12 (SDIO_CLK) is used to provide clock signals; PC8 (SDIO_DAT0) is used for data line 0 transmission; PC9 (SDIO_DAT1) is used for data line 1 transmission; PC10 (SDIO_DAT2) is used for data line 2 transmission.

[0163] Pull-up resistors: R45, R46, R47, R48 (10kΩ) These pull-up resistors are connected to the SDIO_DAT0, SDIO_DAT1, SDIO_DAT2, and SDIO_DAT3 lines respectively to ensure that the data lines remain at a high level when idle to prevent false triggering.

[0164] The pin connections of the TF card slot (JP21) are: Pin 1 (D2), Pin 2 (D3), Pin 3 (CMD), Pin 4 (VCC), Pin 5 (CLK), Pin 6 (GND), Pin 7 (D0), Pin 8 (D1), Pin 9 (CD). These pins correspond to different functions of the TF card, such as data line, clock, command and power connection; VCC (Pin 4) is connected to the +3.3V power supply to power the TF card; GND (Pin 6) is connected to the ground to provide a reference ground for the TF card; CLK (Pin 5) is connected to the SDIO_CLK of the microcontroller to provide a clock signal. CMD (Pin 3) is connected to the SDIO_CMD of the microcontroller to send control commands; D0-D3 (Pin7, 8, 2, 1) are respectively connected to the SDIO_DAT0-DAT3 of the microcontroller for data transmission.

[0165] Power supply filtering: C9 (10μF, 16V capacitor) is connected between the +3.3V power supply and the ground for power supply decoupling and filtering to ensure the stability of the TF card power supply and reduce the impact of power supply noise on communication.

[0166] See also Fig.13, which is the circuit of the SPI Flash memory of the automatic mixing ultrasonic catalytic reaction system, is used to store and read data with the microcontroller through the SPI interface. The SPI Flash memory is connected to the MCU through PA5 (SCK), PA7 (MOSI), PA6 (MISO) and PE3 (CS) to store experimental data. The SDIO interface is connected to the SD card slot through PC12 (CLK), PD2 (CMD) and PC8 to PC11 (DAT0 to DAT3) pins, which expands the storage capacity of the system.

[0167] The specific connection conditions are as follows:

[0168] SPI Flash memory (GD25Q40) pin connection: Pin 1 (CS) chip select signal, controlled by the microcontroller through the PE3 pin, SPI Flash is enabled when low; Pin 2 (SO) serial output, used to read data from Flash, connected to the SPI1_MISO pin (PA6) of the microcontroller; Pin 3 (WP) write protection pin, pulled up to 3.3V through R21, generally connected to a high level to disable the write protection function. Pin 4 (GND) grounding, the pin is connected to the ground; Pin 5 (SI) serial input, used to write data to Flash, connected to the SPI1_MOSI pin (PA7) of the microcontroller; Pin 6 (SCLK) clock signal, provided by the SPI1_SCK pin (PA5) of the microcontroller, for synchronous data transmission; Pin 7 (HOLD) continuous signal, pulled up to 3.3V through R21, generally connected to a high level to disable the hold function; Pin 8 (VCC) is connected to the +3.3V power supply to provide operating voltage for SPI Flash.

[0169] Connector (JP12) pin configuration: Pin 1 (DAC_OUT2) optional function pin, depending on the jumper setting of JP12, can be used for DAC function; Pin 2 (PA5 / SPI1_SCK) SPI1 clock signal, used to synchronize data transmission. Pin 3 (SPI1_SCK) SPI clock signal, directly connected to the PA5 pin of the microcontroller.

[0170] Power supply filtering: C32 (0.1μF, 50V capacitor) is connected between VCC and GND to decouple power supply noise, ensure the stability of the SPIFlash power supply, and reduce the impact of power supply noise on communication.

[0171] Pull-up resistor R21 (10kΩ) is connected between the CS, WP and HOLD pins and VCC to pull up these pins to ensure that they remain at a high level when idle to prevent malfunction.

[0172] See also Fig.14 , which is the circuit of USART1 and USART2 interface of automatic mixing ultrasonic catalytic reaction system, involves realizing communication with RS-232 interface through MAX3232 chip. USART1 and USART2 are connected to MAX3232 chip through PA9, PA10, PA2, PA3 pins, converting TTL level into RS-232 level to realize serial communication with external devices. The USB interface is connected to Mini USB interface through PA11 and PA12 pins for data transmission and power supply, and the pull-up resistor on PD13 pin is used for device identification;

[0173] The specific connection conditions are as follows:

[0174] MAX3232 RS-232 transceiver (U3) Power and ground connections: VCC (Pin 16) connects to the +3.3V power supply to provide the operating voltage for the MAX3232 chip; GND (Pin 15) connects to the ground to provide a reference potential. C1+, C1-, C2+, C2- (Pins1, 2, 3, 4) connect to external capacitors for the charge pump circuit to generate the internal voltages (+10V and -10V) required by the chip. C21, C22, C23, C24, C25 (0.1μF, 50V) These capacitors are used in the charge pump circuit to provide the necessary voltage conversion and stability. USART signal connections: T1IN (Pin 11) connects to PA9 (USART1_TX) for the transmit data input of USART1. R1OUT (Pin 12) connects to PA10 (USART1_RX) for the receive data output of USART1. T2IN (Pin 10) is connected to PA2 (USART2_TX) for USART2 transmit data input. R2OUT (Pin 9) is connected to PA3 (USART2_RX) for USART2 receive data output.

[0175] RS-232 interface, J1 and J2 (9-pin D-Sub interface): J1 and J2 provide RS-232 standard interfaces, corresponding to two serial ports (COM1 and COM2) respectively. Pin configuration: J1 Pin 2 (RS232_TX2) is connected to the T2OUT pin of MAX3232, which is used for the RS-232 transmit signal of USART2. J1 Pin 3 (RS232_RX2) is connected to the R2IN pin of MAX3232, which is used for the RS-232 receive signal of USART2. J2 Pin 2 (RS232_TX1) is connected to the T1OUT pin of MAX3232, which is used for the RS-232 transmit signal of USART1. J2 Pin 3 (RS232_RX1) is connected to the R1IN pin of MAX3232, which is used for the RS-232 receive signal of USART1. Pin 5 (GND) is grounded to provide a reference ground.

[0176] Power supply filtering, capacitors C21, C22, C23, C24, C25 are used to decouple and stabilize the power supply voltage and reduce the impact of power supply noise on signal transmission.

[0177] See also Fig.15 , which is the circuit design of the USB interface of the automatic mixing ultrasonic catalytic reaction system, involving the connection between the microcontroller and the USB device. The specific connection is as follows:

[0178] USB interface (CN2-USB Mini-AB socket) pin connection: Pin 1 (VBUS) is connected to the +5V power supply to power the USB device. Pin 2 (DM) is connected to the PA11 pin of the microcontroller, connected in series through resistor R58 (22Ω), and used for the D- signal line of the USB. Pin 3 (DP) is connected to the PA12 pin of the microcontroller, connected in series through resistor R59 (22Ω), and used for the D+ signal line of the USB. Pin 4 (ID) is not connected or connected to the PD13 pin of the microcontroller, which may be used to detect the type of USB device (such as host or slave). Pin 5 (GND) is grounded, and the pin provides a reference ground for the USB connection.

[0179] Signal conditioning and protection, R61 (1.5kΩ) pull-up resistor, connected to the DP signal line, for USB identification, usually indicates that the device is a full-speed (12Mbps) device. R58, R59 (22Ω) These series resistors are used for impedance matching of USB signal lines to ensure signal integrity and reliability. C49 (470pF, 50V) is connected between the USB shield and ground to filter out high-frequency noise and provide ESD (electrostatic discharge) protection.

[0180] R62 (1MΩ) is used for voltage distribution between the shield layer and ground to prevent floating voltage from affecting signal quality.

[0181] Power supply, +5V power supply provides the operating voltage for USB devices and is transmitted through the VBUS pin.

[0182] The solution of the present invention integrates automatic mixing, precise temperature control and ultrasonic adjustment functions into a unified system based on a GPIO control module, an ultrasonic module, a motor module and a sensor module, simplifies the system structure, improves the convenience of operation, can monitor and dynamically adjust the reaction conditions in real time, reduces the need for human intervention, and improves the automation level of the experiment. At the same time, the built-in LCD display module and LED module can ensure that the system can respond quickly under abnormal circumstances to avoid equipment damage and experimental failure.

[0183] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. An automatic mixing ultrasonic catalytic reaction system, characterized in that: Including main control module, power module, LCD display module, GPIO control module, sensor module, ultrasonic module, motor module; The main control module is connected with the sensor module, the power module, the LCD display module, and the GPIO control module to complete the regulation of the entire system; The GPIO control module is connected to the ultrasonic module and the motor module, and controls the ultrasonic module and the motor module under the control of the main control module, and feeds back the working status of the system; The LCD display module is used to display the status information of the system, the ultrasonic module is used to realize the control of the ultrasonic wave, and the motor module is used to realize the control of the motor; The sensor module is used to collect various parameters of the reactor during the reaction process.

2. The automatic mixing ultrasonic catalytic reaction system according to claim 1, characterized in that: The ultrasonic module includes an ultrasonic control unit and an ultrasonic generator; The ultrasonic control unit is connected to the GPIO control module, and the ultrasonic generator is connected to the GPIO control module via a relay, and is used to generate high-frequency ultrasonic waves under control to enhance the mixing and reaction of reactants; The motor module includes a motor control unit and a motor, wherein the motor includes a lifting motor and a swing motor, the motor control unit is connected to the GPIO control module, and the lifting motor and the swing motor are connected to the GPIO control module through a relay, so as to adjust the position of the reaction container under control and ensure uniform mixing of the reactants.

3. The automatic mixing ultrasonic catalytic reaction system according to claim 2 is characterized in that: The system also includes a refrigeration module and an LED module; The GPIO control module is connected to the refrigeration module through a relay, and its on and off are controlled under the control of the main control module; The LED module is connected to the GPIO control module to indicate the working status of the system; The sensor module includes a temperature sensor, a pressure sensor, and a position sensor, which are respectively used to collect changes in parameters and positions during the reaction process.

4. The automatic mixing ultrasonic catalytic reaction system according to any one of claims 1 to 3, characterized in that: The operation process of the system is as follows: Step 1: After initializing each module, the start-up condition detection is performed, including whether the status of each module in the system is normal, whether the reactor is ready or the preset reaction parameters have been set. If the start-up conditions are met, the temperature sensor in the sensor module is started; Step 2: The temperature sensor monitors the internal temperature of the reactor in real time, continuously collects temperature data in the reactor, and analyzes it through a built-in algorithm to determine whether the temperature has reached the set constant temperature condition. If the constant temperature condition is reached, the sensor module feeds back the information to the main control module through the GPIO control module; Step 4: After the main controller module receives feedback that the constant temperature condition is met, the GPIO control module controls the motor module to start, drives the reactor to move to a preset position through the lifting motor, and senses the reactor position in real time through the position sensor; Step 5, when the reactor reaches the preset position, the main controller module controls the swing motor of the motor module to start through the GPIO control module to control the uniform mixing of the reactants in the reactor. At the same time, the main controller module controls the ultrasonic module to start the ultrasonic operation through the GPIO control module to optimize the reaction effect; Step 6: After the reaction is completed, the main controller module controls the ultrasonic module to stop working through the GPIO control module, and controls the lifting motor of the motor module to start driving the reactor to move to the initial position; Step 7: After the reactor returns to its initial position, the temperature sensor stops working, and the temperature control operation inside the reactor ends. At the same time, the status information of this reaction is fed back.

5. The automatic mixing ultrasonic catalytic reaction system according to any one of claims 1 to 3, characterized in that: The operation process of the system is as follows: Step 1: After initializing each module, the starting condition detection is performed, including whether the status of each module in the system is normal, whether the reactor is ready or the preset reaction parameters have been set. If the starting conditions are met, the motor module is started; Step 2, start the motor module, drive the reactor to a preset position through the lifting motor, and start the temperature sensor in the sensor module; Step 3: Monitor the temperature inside the reactor in real time based on the temperature sensor, continuously collect the temperature data inside the reactor, and use the built-in algorithm to analyze the temperature change to determine whether the preset constant temperature condition has been reached; Step 4: When it is detected that the temperature inside the reactor has reached the preset constant temperature condition, the main controller module controls the ultrasonic module to start through the GPIO control module, and the ultrasonic control module performs ultrasonic operation according to preset parameters to ensure that the reactants are fully mixed inside the reactor and promote the reaction efficiency through ultrasonic vibration; Step 5: After the ultrasonic operation is completed, the system stops the operation of the ultrasonic control module. At this time, the mixing and reaction process of the reactants have been effectively processed, the ultrasonic task is completed, and the system enters the reaction chamber reset stage; Step 6: After the ultrasonic task is completed and stopped, the main controller module controls the lifting motor of the motor module through the GPIO control module to start, and drives the reaction chamber to return from the current working position to the initial position; Step 7: After the reactor returns to its initial position, the temperature sensor stops working, and the temperature control operation inside the reactor ends. At the same time, the status information of this reaction is fed back.

6. The automatic mixing ultrasonic catalytic reaction system according to claim 3 is characterized in that: The main control module includes a main control chip (U1), The VDD1, VDD2 and VDD3 pins of the main control chip (U1) are connected to a 3.3V power supply, the VSS1, VSS2 and VSS3 pins are grounded, and the VDDA and VSSA pins are connected to an analog power supply and an analog ground respectively; The OSC_IN pin and OSC_OUT pin of the main control chip (U1) are connected to the first crystal oscillator (Y1) and the first capacitor (C1) and the second capacitor (C2) to provide a 25MHz main clock signal, and the PC14 pin and PC15 pin are connected to the external 32.768kHz first crystal oscillator (Y2) and the third capacitor (C3) and the fourth capacitor (C4) as a low-frequency clock source of the clock; The NRST pin of the main control chip (U1) is connected to a reset circuit via a pull-up resistor (R6) and a decoupling capacitor (C16) for resetting the microcontroller; The PA13 pin and the PA14 pin of the main control chip (U1) are connected to the debugging interface for programming and debugging the controller through the SWD protocol; the PA15 pin, the PB3 pin, and the PB4 pin are connected to the JTAG interface pins for supporting the JTAG debugging mode; The BOOT0 pin and BOOT1 pin of the main control chip (U1) are connected to the 3.3V power supply and GND respectively through jumpers JP2 and JP3 to select the startup mode; The VBAT pin of the main control chip (U1) is connected to the battery, and the power supply is selected through the J9 interface to provide power for the RTC and the backup register when the main power supply is turned off; The PA0-PA7 pins, PA8-PA15 pins, PB0-PB15 pins, PC0-PC15 pins, PD0-PD15 pins, and PE0-PE15 pins of the main control chip (U1) are respectively connected to external devices and used as general input and output; The NRST pin of the main control chip (U1) is connected to a manual reset circuit to ensure that the system can be manually reset when necessary.

7. The automatic mixing ultrasonic catalytic reaction system according to claim 6, characterized in that: The main control module also includes a CAN transceiver (U6), wherein a CAN1_TX pin of the CAN transceiver (U6) is connected to a PD1 pin of a main control chip (U1) for sending CAN data, and a CAN1_RX pin of the CAN transceiver (U6) is connected to a PD0 pin of the main control chip (U1) for receiving CAN data; a GND pin of the CAN transceiver (U6) is grounded, and a VCC pin is connected to a +3.3V power supply to provide an operating voltage for the CAN transceiver; an R pin of the CAN transceiver (U6) is grounded for setting a transceiver operating mode, and an RS pin is grounded through an eighth resistor (R8) for controlling the transceiver operating mode; The CANH pin and CANL pin of the CAN transceiver (U6) are connected to the high-level and low-level signal lines of the CAN bus through the twenty-second resistor (R22) and the twenty-third resistor (R23) respectively; the filter capacitor (C33) is connected between the VCC and GND of the CAN transceiver (U6) for power decoupling, filtering out high-frequency noise on the power line, and ensuring stable operation of the CAN transceiver.

8. The automatic mixing ultrasonic catalytic reaction system according to claim 3 is characterized in that: The power supply module comprises a voltage stabilizer (U2) and a first switch (SW1); The S1 pin and the S2 pin of the first switch (SW1) are connected to a +5V power supply respectively, and the S pin is used to switch the output, connected to the +5V power supply or disconnected, to control whether the subsequent circuit is powered on; The Vin pin of the voltage regulator (U2) is connected to the output end of the first switch (SW1) to receive a +5V power supply, the Vout pin of the voltage regulator (U2) outputs a stable 3.3V voltage, and the GND pin is grounded; Decoupling capacitors are set between the Vin pin and Vout pin of the voltage regulator (U2) and the ground to reduce power ripple and noise and ensure the stability of the power supply; The Vout pin of the voltage regulator (U2) is connected to the indicator light (LED1), and a current limiting resistor is connected in series between the indicator light (LED1) and the Vout pin to ensure that the indicator light (LED1) works under a safe current.

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