Accurate temperature control system and control method for microwave experimental equipment

Abstract

The invention relates to the technical field of microwave heating, and discloses a precise temperature control system and method for microwave experimental equipment, and the system comprises a temperature collection module, a data processing module, a control calculation module, a power control module, a temperature adjustment module, and a continuous monitoring and feedback module. The temperature acquisition module is used for continuously monitoring the temperature of internal materials and sending temperature data to the equipment controller in real time; the data processing module is used for filtering and denoising the data after receiving the temperature data so as to ensure the accuracy and stability of the data; and the control calculation module is used for comparing the processed temperature data with a preset target temperature and calculating an adjustment value of the microwave power through a PID control algorithm. The adjustment value of the microwave power is calculated through a comparison unit and a PID control algorithm unit in the control calculation module, so that the accurate adjustment value of the microwave power is calculated, the accuracy and the response speed of temperature control are ensured, and the temperature is infinitely close to a set value.

Description

Technical Field

[0001] The invention relates to the technical field of microwave heating, and in particular to a precise temperature control system and a control method for microwave experimental equipment. Background Art

[0002] Microwave experimental equipment is a device that uses microwave energy to heat, process and study materials. It is widely used in chemical synthesis, material processing, biomedicine and food science. The core principle of microwave experimental equipment is to heat materials through microwave radiation. Since microwaves can directly act on the inside of the material, they produce a fast and uniform heating effect, thereby greatly improving the efficiency of the experiment. However, with the advancement of science and technology and the expansion of application fields, microwave experimental equipment has put forward higher requirements in temperature control accuracy, response speed, energy efficiency and stability. Especially in high-precision experiments and industrial production, the temperature control method and power adjustment method of traditional equipment can no longer fully meet the actual needs.

[0003] First, in the temperature control process of microwave experimental equipment, the traditional control method usually uses fixed power gears such as 0KW, 2KW, 4KW, and 6KW for adjustment. When the temperature reaches the set value, the equipment will turn off the corresponding power gear, resulting in large temperature fluctuations around the set value. When the temperature drops to the set value minus a hysteresis set value, the microwave restarts. The main disadvantage of this mode is that the temperature fluctuates greatly, and high-precision temperature control cannot be achieved, which cannot meet the experimental requirements for high temperature control.

[0004] Secondly, the power adjustment method of traditional microwave experimental equipment is usually fixed-gear adjustment, that is, 0KW, 2KW, 4KW and 6KW. Although this method is simple, it has obvious shortcomings in practical applications. Especially during the experiment, temperature control requires more flexible and precise power adjustment. The fixed-gear adjustment method cannot make real-time and continuous adjustments according to actual temperature changes, resulting in the power output of the equipment not being able to accurately match the temperature control requirements, affecting the accuracy and efficiency of the experiment;

[0005] Finally, in the process of temperature control, traditional microwave experimental equipment usually relies on preset power levels for temperature adjustment. When the temperature reaches the set value, the equipment will turn off the power output and the temperature will drop accordingly; when the temperature drops to the set value minus the return difference, the equipment will restart the power. This frequent switching operation not only causes large temperature fluctuations, but also fails to achieve stable temperature control. Temperature fluctuations not only affect the accuracy of the experiment, but also have an adverse effect on the handling of temperature-sensitive materials, increasing the uncertainty and error of the experiment. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a precise temperature control system and control method for microwave experimental equipment, which solves the problems of inaccurate temperature control and slow response speed.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a precise temperature control system and control method for microwave experimental equipment, including a temperature acquisition module, a data processing module, a control calculation module, a power control module, a temperature adjustment module and a continuous monitoring and feedback module;

[0008] The temperature acquisition module is used to continuously monitor the temperature of the internal material and send the temperature data to the equipment controller in real time;

[0009] The data processing module is used to filter and remove noise from the received temperature data to ensure the accuracy and stability of the data;

[0010] The control calculation module is used to compare the processed temperature data with the preset target temperature and calculate the adjustment value of the microwave power through the PID control algorithm;

[0011] The power control module is used to send the calculated microwave power adjustment instruction to the microwave power module through the digital communication interface to adjust the output power of the microwave;

[0012] The temperature adjustment module is used to continuously monitor and adjust the temperature according to the adjusted microwave power output to ensure that the temperature gradually approaches and stabilizes near the set value;

[0013] The continuous monitoring and feedback module is used to restart a new round of temperature collection and adjustment after the temperature reaches the set value, ensuring that the temperature always remains near the set value.

[0014] Preferably, the temperature acquisition module includes a temperature sensor unit and a data transmission unit;

[0015] The temperature sensor unit is used to monitor the temperature of the internal material in real time;

[0016] The data transmission unit is used to send the temperature data to the device controller in real time.

[0017] Preferably, the data processing module includes a filtering unit, a denoising unit and a data cache unit;

[0018] The filtering unit is used to filter the collected temperature data to remove noise and interference;

[0019] The denoising unit is used to perform denoising processing on the filtered temperature data;

[0020] The data cache unit is used to cache the processed temperature data.

[0021] Preferably, the control calculation module includes a comparison unit, a PID control algorithm unit and a calculation unit;

[0022] The comparison unit is used to compare the processed temperature data with a preset target temperature;

[0023] The PID control algorithm unit is used to perform temperature control through a PID control algorithm;

[0024] The PID control algorithm expression is:

[0025]

[0026] Among them, u ( t ) is the controller output, K p is the proportional gain, e ( t ) is the current error, that is, the difference between the set value and the current temperature, K i is the integral gain, is the accumulation of error over time, K d Differential gain, The rate of change of error over time;

[0027] The PID control algorithm works in the following way:

[0028] A. Proportional: Calculate the initial power adjustment value based on the difference between the current temperature and the target temperature;

[0029] B. Integration: According to the accumulated error of temperature difference, power adjustment is performed to eliminate system deviation;

[0030] C. Differentiation: Adjust power according to the rate of temperature change, predict temperature change trend, and reduce overshoot and oscillation;

[0031] The calculation unit is used to calculate the adjustment value of the microwave power according to the PID control algorithm.

[0032] Preferably, the power control module includes a digital communication unit, a microwave power control unit and a power adjustment unit;

[0033] The digital communication unit is used to send the calculated microwave power adjustment instruction to the microwave power control unit;

[0034] The microwave power control unit is used to adjust the output power of the microwave according to the received instructions;

[0035] The power adjustment unit is used to specifically perform the microwave power adjustment operation.

[0036] Preferably, the temperature adjustment module includes a unit temperature monitoring unit, a power feedback unit and a microwave output unit;

[0037] The temperature monitoring unit is used to continuously monitor the material temperature according to the adjusted microwave power output;

[0038] The power feedback unit is used to continuously adjust the microwave power according to the temperature change;

[0039] The microwave output unit is used to ensure that the temperature gradually approaches and stabilizes near a set value.

[0040] Preferably, the continuous monitoring and feedback module includes a feedback control unit and a data circulation unit;

[0041] The feedback control unit is used to cause the device to return to the temperature acquisition module to start a new round of temperature acquisition and adjustment after the temperature reaches the set value;

[0042] The data circulation unit is used to ensure that the temperature is always kept near the set value, and continuously monitor and adjust the temperature.

[0043] Preferably, the temperature acquisition module is electrically connected to the data processing module, the data processing module is electrically connected to the control calculation module, the control calculation module is electrically connected to the power control module, the power control module is electrically connected to the microwave power supply module, the temperature adjustment module is electrically connected to the power control module, and the continuous monitoring and feedback module is electrically connected to the temperature acquisition module.

[0044] A precise temperature control method for microwave experimental equipment comprises the following steps:

[0045] S1. Temperature acquisition: The temperature of the internal material is monitored in real time through the temperature sensor unit in the temperature acquisition module, and the temperature data is sent to the equipment controller in real time through the data transmission unit;

[0046] S2, data collection and processing: the controller filters and denoises the received temperature data through the filtering unit and denoising unit in the data processing module, and the processed data is cached in the data cache unit;

[0047] S3, calculating and controlling output data: the controller compares the processed temperature data with the preset target temperature through the comparison unit in the control calculation module, and then calculates the adjustment value of the microwave power using the PID control algorithm through the PID control algorithm unit;

[0048] S4, sending control instructions: the controller sends the calculated microwave power adjustment instruction to the microwave power control unit through the digital communication unit in the power control module, and the microwave power control unit adjusts the output power of the microwave according to the received instruction;

[0049] S5. Temperature adjustment: The temperature sensor unit in the temperature adjustment module continuously monitors the material temperature, the power feedback unit continuously adjusts the microwave power according to the temperature change, and the microwave output unit ensures that the temperature gradually approaches and stabilizes near the set value;

[0050] S6. Continuous monitoring and feedback: After the temperature reaches the set value, the feedback control unit in the continuous monitoring and feedback module enables the device to restart a new round of temperature collection and adjustment. The data circulation unit ensures that the temperature always remains near the set value.

[0051] Preferably, in the step S4, the microwave power adjustment range is 0KW to 6KW, and can be adjusted to 0KW to 6KW stepless power regulation.

[0052] The present invention provides a precise temperature control system and control method for microwave experimental equipment, which has the following beneficial effects:

[0053] 1. The present invention compares the processed temperature data with the preset target temperature through the comparison unit in the control calculation module, and calculates the adjustment value of the microwave power through the PID control algorithm unit, so that the power can be adjusted according to the difference between the current temperature and the target temperature, the accumulated error of the temperature difference and the rate of temperature change, thereby calculating the accurate microwave power adjustment value, ensuring the accuracy and response speed of temperature control, and making the temperature infinitely close to the set value.

[0054] 2. The present invention sends the calculated microwave power adjustment instruction to the microwave power control unit through the digital communication unit of the power control module. The microwave power control unit adjusts the output power of the microwave according to the received instruction to achieve precise power adjustment, ensuring that the microwave output can quickly respond to the control instruction, thereby achieving more flexible and accurate power control during the temperature adjustment process.

[0055] 3. The present invention continuously monitors the material temperature. The power feedback unit continuously adjusts the microwave power according to the temperature change. The microwave output unit ensures that the temperature gradually approaches and stabilizes near the set value, thereby achieving the effect of dynamic adjustment and stable temperature control. At the same time, through continuous monitoring and feedback adjustment, the system can automatically adapt to temperature changes to ensure the continuity and stability of temperature control. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 It is a system module diagram of the present invention;

[0057] Figure 2 It is a schematic diagram of the temperature acquisition module of the present invention;

[0058] Figure 3 It is a schematic diagram of a data processing module of the present invention;

[0059] Figure 4 It is a schematic diagram of a control calculation module of the present invention;

[0060] Figure 5 is a schematic diagram of a power control module of the present invention;

[0061] Figure 6 It is a schematic diagram of the temperature adjustment module of the present invention;

[0062] Figure 7 It is a schematic diagram of the continuous monitoring and feedback module of the present invention;

[0063] Figure 8 The figure is a flow chart of the control method steps of the present invention. DETAILED DESCRIPTION

[0064] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, 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.

[0065] Example:

[0066] Please refer to the attached Figure 1 , an embodiment of the present invention provides a precise temperature control system for microwave experimental equipment, including a temperature acquisition module, a data processing module, a control calculation module, a power control module, a temperature adjustment module and a continuous monitoring and feedback module;

[0067] The temperature acquisition module is used to continuously monitor the temperature of the internal material and send the temperature data to the equipment controller in real time;

[0068] The data processing module is used to filter and remove noise from the received temperature data to ensure the accuracy and stability of the data;

[0069] The control calculation module is used to compare the processed temperature data with the preset target temperature and calculate the adjustment value of the microwave power through the PID control algorithm;

[0070] The power control module is used to send the calculated microwave power adjustment instruction to the microwave power module through the digital communication interface to adjust the output power of the microwave;

[0071] The temperature adjustment module is used to continuously monitor and adjust the temperature according to the adjusted microwave power output to ensure that the temperature gradually approaches and stabilizes near the set value;

[0072] The continuous monitoring and feedback module is used to restart a new round of temperature collection and adjustment after the temperature reaches the set value, ensuring that the temperature always remains near the set value;

[0073] The temperature acquisition module is electrically connected to the data processing module, the data processing module is electrically connected to the control calculation module, the control calculation module is electrically connected to the power control module, the power control module is electrically connected to the microwave power supply module, the temperature adjustment module is electrically connected to the power control module, and the continuous monitoring and feedback module is electrically connected to the temperature acquisition module.

[0074] Specifically, the temperature acquisition module is used to continuously monitor the temperature of the internal material and send the temperature data to the equipment controller in real time to realize real-time monitoring of the material temperature and ensure that the control system can obtain accurate temperature information. The data processing module is used to filter and denoise the data after receiving the temperature data to ensure the accuracy and stability of the data. The processed data is cached in the data cache unit to remove noise and interference in the temperature data and provide a reliable data basis for subsequent control calculations. The control calculation module compares the processed temperature data with the preset target temperature and calculates the adjustment value of the microwave power through the PID control algorithm. The proportional control, integral control and differential control are combined to adjust the microwave power according to the current temperature. The power is adjusted according to the difference between the target temperature and the temperature difference, the accumulated error of the temperature difference and the rate of temperature change to ensure the accuracy and response speed of temperature control. The power control module is used to send the calculated microwave power adjustment instruction to the microwave power module through the digital communication interface. The microwave power module adjusts the output power of the microwave according to the received instruction, thereby achieving accurate power adjustment and ensuring that the microwave output can quickly respond to the control instruction. The temperature adjustment module is used to continuously monitor and adjust the temperature according to the adjusted microwave power output to ensure that the temperature gradually approaches and stabilizes near the set value, thereby achieving dynamic adjustment and stable control of the temperature. The continuous monitoring and feedback module is used to restart a new round of temperature adjustment for the device after the temperature reaches the set value. The temperature is collected and adjusted to ensure that the temperature is always kept near the set value. Through continuous monitoring and feedback adjustment, the system can automatically adapt to temperature changes to ensure the continuity and stability of temperature control. The temperature collection module is electrically connected to the data processing module, the data processing module is electrically connected to the control calculation module, the control calculation module is electrically connected to the power control module, the power control module is electrically connected to the microwave power supply module, the temperature adjustment module is electrically connected to the power control module, and the continuous monitoring and feedback module is electrically connected to the temperature collection module to form a complete control system to ensure that the microwave experimental equipment can accurately control the temperature and achieve uniform heating and temperature control of the material. Stable control of temperature. Through the collaborative operation of the above modules, real-time monitoring of material temperature is achieved to obtain accurate temperature data; temperature data is processed to remove noise and interference to ensure data reliability; microwave power adjustment value is accurately calculated through PID control algorithm to ensure temperature control accuracy and response speed; microwave power is accurately adjusted through digital communication interface to quickly respond to control instructions; temperature is dynamically adjusted and stably controlled to ensure that material temperature gradually approaches and is maintained near the set value; continuous monitoring and feedback adjustment, automatic adaptation to temperature changes, and ensuring continuity and stability of temperature control. These effects jointly ensure that microwave experimental equipment can achieve uniform heating and stable temperature control, and meet application scenarios with high requirements for temperature accuracy.

[0075] Please refer to the attached Figure 2 -Attached Figure 4 , the temperature acquisition module includes a temperature sensor unit and a data transmission unit;

[0076] The temperature sensor unit is used to monitor the temperature of the internal material in real time;

[0077] The data transmission unit is used to send the temperature data to the device controller in real time;

[0078] The data processing module includes a filtering unit, a denoising unit and a data cache unit;

[0079] The filtering unit is used to filter the collected temperature data to remove noise and interference;

[0080] The denoising unit is used to perform denoising processing on the filtered temperature data;

[0081] The data cache unit is used to cache the processed temperature data;

[0082] The control calculation module includes a comparison unit, a PID control algorithm unit and a calculation unit;

[0083] The comparison unit is used to compare the processed temperature data with a preset target temperature;

[0084] The PID control algorithm unit is used to perform temperature control through a PID control algorithm;

[0085] The PID control algorithm expression is:

[0086]

[0087] Among them, u ( t ) is the controller output, K p is the proportional gain, e ( t ) is the current error, that is, the difference between the set value and the current temperature, K i is the integral gain, is the accumulation of error over time, K d Differential gain, The rate of change of error over time;

[0088] The PID control algorithm works in the following way:

[0089] A. Proportional: Calculate the initial power adjustment value based on the difference between the current temperature and the target temperature;

[0090] B. Integration: According to the accumulated error of temperature difference, power adjustment is performed to eliminate system deviation;

[0091] C. Differentiation: Adjust power according to the rate of temperature change, predict temperature change trend, and reduce overshoot and oscillation;

[0092] The calculation unit is used to calculate the adjustment value of the microwave power according to the PID control algorithm.

[0093] Specifically, the temperature sensor unit monitors the temperature of the internal material in real time, and then sends the temperature data to the equipment controller in real time through the data transmission unit to ensure accurate temperature information. After receiving the temperature data, the filtering unit in the data processing module filters the data, and the denoising unit further denoises the filtered temperature data. Then the data cache unit caches the processed temperature data to ensure the accuracy and stability of the data and provide a reliable data basis for subsequent control calculations. The comparison unit in the control calculation module compares the processed temperature data with the preset target temperature, and then uses the PID control algorithm unit to calculate the adjustment value of the microwave power using the PID control algorithm. In this way, through the combination of proportional control, integral control and differential control, the calculation unit can adjust the power according to the difference between the current temperature and the target temperature, the accumulated error of the temperature difference and the rate of temperature change, so as to calculate the accurate microwave power adjustment value. In this way, the microwave power adjustment value is accurately calculated using the PID control algorithm to ensure the accuracy and response speed of temperature control, and the precise adjustment of microwave power is achieved through the digital communication interface, and the control command is quickly responded to, and the temperature is dynamically adjusted and stably controlled.

[0094] Please refer to the attached Figure 5 -Attached Figure 7 , the power control module includes a digital communication unit, a microwave power control unit and a power adjustment unit;

[0095] The digital communication unit is used to send the calculated microwave power adjustment instruction to the microwave power control unit;

[0096] The microwave power control unit is used to adjust the output power of the microwave according to the received instructions;

[0097] The power adjustment unit is used to specifically perform the microwave power adjustment operation;

[0098] The temperature adjustment module includes a unit temperature monitoring unit, a power feedback unit and a microwave output unit;

[0099] The temperature monitoring unit is used to continuously monitor the material temperature according to the adjusted microwave power output;

[0100] The power feedback unit is used to continuously adjust the microwave power according to the temperature change;

[0101] The microwave output unit is used to ensure that the temperature gradually approaches and stabilizes near the set value;

[0102] The continuous monitoring and feedback module includes a feedback control unit and a data circulation unit;

[0103] The feedback control unit is used to cause the device to return to the temperature acquisition module to start a new round of temperature acquisition and adjustment after the temperature reaches the set value;

[0104] The data circulation unit is used to ensure that the temperature is always kept near the set value, and continuously monitor and adjust the temperature.

[0105] Specifically, the calculated microwave power adjustment value is sent to the microwave power control unit through the digital communication unit. The microwave power control unit adjusts the microwave output power according to the received instructions and responds quickly to the control instructions to ensure that the microwave output can accurately adjust the power. As the microwave power is adjusted, the temperature monitoring unit continuously monitors the material temperature. The power feedback unit continuously adjusts the microwave power according to the temperature change. The microwave output unit ensures that the temperature gradually approaches and stabilizes near the set value, thereby achieving the effect of dynamic adjustment and stable temperature control. In order to maintain temperature stability, the feedback control unit returns the equipment to the temperature collection stage after the temperature reaches the set value, and starts a new round of temperature collection and adjustment. The data circulation unit ensures that the temperature always remains near the set value. Through continuous monitoring and feedback adjustment, the system can automatically adapt to temperature changes, thereby ensuring that the material temperature gradually approaches and maintains near the set value, and automatically adapts to temperature changes through continuous monitoring and feedback adjustment, thereby ensuring the continuity and stability of temperature control.

[0106] Embodiment 2:

[0107] Please refer to the attached Figure 8 , a precise temperature control method for microwave experimental equipment, comprising the following steps:

[0108] S1. Temperature acquisition: The temperature of the internal material is monitored in real time through the temperature sensor unit in the temperature acquisition module, and the temperature data is sent to the equipment controller in real time through the data transmission unit;

[0109] S2, data collection and processing: the controller filters and denoises the received temperature data through the filtering unit and denoising unit in the data processing module, and the processed data is cached in the data cache unit;

[0110] S3, calculating and controlling output data: the controller compares the processed temperature data with the preset target temperature through the comparison unit in the control calculation module, and then calculates the adjustment value of the microwave power using the PID control algorithm through the PID control algorithm unit;

[0111] S4, sending control instructions: the controller sends the calculated microwave power adjustment instruction to the microwave power control unit through the digital communication unit in the power control module, and the microwave power control unit adjusts the output power of the microwave according to the received instruction;

[0112] S5. Temperature adjustment: The temperature sensor unit in the temperature adjustment module continuously monitors the material temperature, the power feedback unit continuously adjusts the microwave power according to the temperature change, and the microwave output unit ensures that the temperature gradually approaches and stabilizes near the set value;

[0113] S6, continuous monitoring and feedback: After the temperature reaches the set value, the feedback control unit in the continuous monitoring and feedback module enables the device to restart a new round of temperature collection and adjustment, and the data circulation unit ensures that the temperature always remains near the set value;

[0114] In the step S4, the microwave power adjustment range is 0KW to 6KW, and can be adjusted to 0KW to 6KW stepless power adjustment.

[0115] Specifically, first, the temperature of the internal material is monitored in real time through the temperature sensor unit in the temperature acquisition module, and the temperature data is sent to the equipment controller in real time through the data transmission unit to ensure accurate temperature information. After receiving the temperature data, the controller filters the data through the filter unit in the data processing module to remove noise and interference, and then further processes the data by the denoising unit to ensure the accuracy and stability of the data. The processed data is cached in the data cache unit. Then, the controller compares the processed temperature data with the preset target temperature through the comparison unit in the control calculation module, and then calculates the micro temperature using the PID control algorithm through the PID control algorithm unit. The PID control algorithm combines proportional control, integral control and differential control to adjust the power according to the difference between the current temperature and the target temperature, the accumulated error of the temperature difference and the rate of temperature change, so as to calculate the precise microwave power adjustment value to ensure the accuracy and response speed of temperature control. The controller sends the calculated microwave power adjustment instruction to the microwave power control unit through the digital communication unit in the power control module. The microwave power control unit adjusts the output power of the microwave according to the received instruction to achieve precise power adjustment and ensure that the microwave output can quickly respond to the control instruction. The adjustment range of microwave power is 0KW~6KW, and it can be adjusted to 0KW~6K W infinitely adjusts the power. Subsequently, the temperature sensor unit in the temperature adjustment module continuously monitors the material temperature. The power feedback unit continuously adjusts the microwave power according to the temperature change. The microwave output unit ensures that the temperature gradually approaches and stabilizes near the set value, thereby achieving the effect of dynamic adjustment and stable temperature control. Finally, in order to maintain the temperature stability, the feedback control unit in the continuous monitoring and feedback module restarts a new round of temperature collection and adjustment after the temperature reaches the set value. The data circulation unit ensures that the temperature always remains near the set value. Through continuous monitoring and feedback adjustment, the system can automatically adapt to temperature changes and ensure the continuity and stability of temperature control. Through the coordinated work of the above units The entire control system realizes real-time monitoring of material temperature and obtains accurate temperature data; processes temperature data, removes noise and interference, and ensures data reliability; accurately calculates microwave power adjustment values ​​through PID control algorithm to ensure temperature control accuracy and response speed; realizes precise adjustment of microwave power through digital communication interface and quickly responds to control instructions; dynamically adjusts and stably controls temperature to ensure that material temperature gradually approaches and remains near the set value; continuously monitors and feedbacks and adjusts, automatically adapts to temperature changes, and ensures continuity and stability of temperature control. These effects jointly ensure that microwave experimental equipment can achieve uniform heating and stable temperature control, meeting application scenarios with high requirements for temperature accuracy.

[0116] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precise temperature control system for microwave experimental equipment, characterized in that: It includes temperature acquisition module, data processing module, control calculation module, power control module, temperature adjustment module and continuous monitoring and feedback module; The temperature acquisition module is used to continuously monitor the temperature of the internal material and send the temperature data to the equipment controller in real time; The data processing module is used to filter and remove noise from the received temperature data to ensure the accuracy and stability of the data; The control calculation module is used to compare the processed temperature data with the preset target temperature and calculate the adjustment value of the microwave power through the PID control algorithm; The power control module is used to send the calculated microwave power adjustment instruction to the microwave power module through the digital communication interface to adjust the output power of the microwave; The temperature adjustment module is used to continuously monitor and adjust the temperature according to the adjusted microwave power output to ensure that the temperature gradually approaches and stabilizes near the set value; The continuous monitoring and feedback module is used to restart a new round of temperature collection and adjustment after the temperature reaches the set value, ensuring that the temperature always remains near the set value.

2. The precise temperature control system of a microwave experimental equipment according to claim 1, characterized in that: The temperature acquisition module includes a temperature sensor unit and a data transmission unit; The temperature sensor unit is used to monitor the temperature of the internal material in real time; The data transmission unit is used to send the temperature data to the device controller in real time.

3. The precise temperature control system of a microwave experimental equipment according to claim 1, characterized in that: The data processing module includes a filtering unit, a denoising unit and a data cache unit; The filtering unit is used to filter the collected temperature data to remove noise and interference; The denoising unit is used to perform denoising processing on the filtered temperature data; The data cache unit is used to cache the processed temperature data.

4. The precise temperature control system of a microwave experimental equipment according to claim 1, characterized in that: The control calculation module includes a comparison unit, a PID control algorithm unit and a calculation unit; The comparison unit is used to compare the processed temperature data with a preset target temperature; The PID control algorithm unit is used to perform temperature control through a PID control algorithm; The PID control algorithm expression is: Among them, u ( t ) is the controller output, K p is the proportional gain, e ( t ) is the current error, that is, the difference between the set value and the current temperature, K i is the integral gain, is the accumulation of error over time, K d Differential gain, The rate of change of error over time; The PID control algorithm works in the following way: A. Proportional: Calculate the initial power adjustment value based on the difference between the current temperature and the target temperature; B. Integration: According to the accumulated error of temperature difference, power adjustment is performed to eliminate system deviation; C. Differentiation: Adjust power according to the rate of temperature change, predict temperature change trend, and reduce overshoot and oscillation; The calculation unit is used to calculate the adjustment value of the microwave power according to the PID control algorithm.

5. The precise temperature control system of a microwave experimental equipment according to claim 1, characterized in that: The power control module includes a digital communication unit, a microwave power control unit and a power adjustment unit; The digital communication unit is used to send the calculated microwave power adjustment instruction to the microwave power control unit; The microwave power control unit is used to adjust the output power of the microwave according to the received instructions; The power adjustment unit is used to specifically perform the microwave power adjustment operation.

6. The precise temperature control system of a microwave experimental equipment according to claim 1, characterized in that: The temperature adjustment module includes a unit temperature monitoring unit, a power feedback unit and a microwave output unit; The temperature monitoring unit is used to continuously monitor the material temperature according to the adjusted microwave power output; The power feedback unit is used to continuously adjust the microwave power according to the temperature change; The microwave output unit is used to ensure that the temperature gradually approaches and stabilizes near a set value.

7. The precise temperature control system of a microwave experimental equipment according to claim 1, characterized in that: The continuous monitoring and feedback module includes a feedback control unit and a data circulation unit; The feedback control unit is used to cause the device to return to the temperature acquisition module to start a new round of temperature acquisition and adjustment after the temperature reaches the set value; The data circulation unit is used to ensure that the temperature is always kept near the set value, and continuously monitor and adjust the temperature.

8. The precise temperature control system of a microwave experimental equipment according to claim 1, characterized in that: The temperature acquisition module is electrically connected to the data processing module, the data processing module is electrically connected to the control calculation module, the control calculation module is electrically connected to the power control module, the power control module is electrically connected to the microwave power supply module, the temperature adjustment module is electrically connected to the power control module, and the continuous monitoring and feedback module is electrically connected to the temperature acquisition module.

9. A method for precise temperature control of microwave experimental equipment, according to the precise temperature control system of microwave experimental equipment according to claims 1-8, characterized in that: The following steps are involved: S1. Temperature acquisition: The temperature of the internal material is monitored in real time through the temperature sensor unit in the temperature acquisition module, and the temperature data is sent to the equipment controller in real time through the data transmission unit; S2, data collection and processing: the controller filters and denoises the received temperature data through the filtering unit and denoising unit in the data processing module, and the processed data is cached in the data cache unit; S3, calculating and controlling output data: the controller compares the processed temperature data with the preset target temperature through the comparison unit in the control calculation module, and then calculates the adjustment value of the microwave power using the PID control algorithm through the PID control algorithm unit; S4, sending control instructions: the controller sends the calculated microwave power adjustment instruction to the microwave power control unit through the digital communication unit in the power control module, and the microwave power control unit adjusts the output power of the microwave according to the received instruction; S5. Temperature adjustment: The temperature sensor unit in the temperature adjustment module continuously monitors the material temperature, the power feedback unit continuously adjusts the microwave power according to the temperature change, and the microwave output unit ensures that the temperature gradually approaches and stabilizes near the set value; S6. Continuous monitoring and feedback: After the temperature reaches the set value, the feedback control unit in the continuous monitoring and feedback module enables the device to restart a new round of temperature collection and adjustment. The data circulation unit ensures that the temperature always remains near the set value.

10. The precise temperature control method of microwave experimental equipment according to claim 9, characterized in that: In the step S4, the microwave power adjustment range is 0KW to 6KW, and can be adjusted to 0KW to 6KW stepless power adjustment.

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