Intelligent fan and control method thereof

Abstract

The application discloses an intelligent fan and a control method thereof. The intelligent fan comprises a mounting frame, a wind wheel and an intelligent control system. The wind wheel is installed inside the mounting frame. One end of the mounting frame is provided with an air inlet, and the periphery of the mounting frame is provided with an air outlet. The wind wheel controls air to flow into the air inlet and flow out of the air outlet. A plurality of temperature sensors, a plurality of pressure sensors and a plurality of wind speed sensors are arranged on the mounting frame. The intelligent control system is installed inside the wind wheel. The plurality of temperature sensors, the plurality of pressure sensors and the plurality of wind speed sensors are electrically connected to the intelligent control system respectively. The intelligent control system controls the rotating speed of the wind wheel. The method comprises the following steps: S a1, inputting a target temperature T0; S a2, measuring a temperature average value T1; S a3, comparing the size of T0 and T1; S a4, adjusting the rotating speed of the wind wheel, and then returning to step S a2 until T1=T0. The application can intelligently control the working state of the fan.

Description

Technical Field

[0001] This invention belongs to the field of intelligent wind turbine control, specifically relating to an intelligent wind turbine and its control method. Background Technology

[0002] Conventional ventilators either have their operating points pre-set during the system design, making it impossible to adjust their performance during operation; or they require manual adjustment, which also prevents real-time performance regulation. This makes it difficult to meet the needs of users in harsh operating environments where environmental stability is a high priority.

[0003] The patent with patent number "CN201721672407.4" discloses a centrifugal fan that determines the fan's air volume by measuring the pressure difference between the fan's inlet and outlet and corresponding it to the PQ curve determined by testing. This method is not intelligent enough, and the system's control limit is adjusted by voltage value, without involving the measurement of wind speed. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent fan and its control method, which can acquire multiple parameters during the fan's operation in real time and intelligently control the fan's operating status based on these parameters and user needs.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by the present invention is as follows:

[0006] An intelligent fan includes a mounting frame, a fan impeller, and an intelligent control system. The fan impeller is installed inside the mounting frame. One end of the mounting frame has an air inlet, and the four sides of the mounting frame have air outlets. The fan impeller controls air to flow in through the air inlet and out through the air outlets. The mounting frame is equipped with multiple temperature sensors, multiple pressure sensors, and multiple wind speed sensors. The multiple temperature sensors are located near the air inlet. The multiple pressure sensors are located near both the air outlet and the air inlet. The multiple wind speed sensors are located near either the air outlet or the air inlet. The intelligent control system is installed inside the fan impeller. The multiple temperature sensors, multiple pressure sensors, and multiple wind speed sensors are all electrically connected to the intelligent control system. The intelligent control system controls the rotational speed of the fan impeller.

[0007] By installing multiple temperature sensors, multiple pressure sensors, and multiple wind speed sensors on the mounting frame, the intelligent fan can measure and calculate parameters such as temperature, static pressure difference, wind speed, and air volume during operation, allowing users to intelligently control the fan's operating status based on these parameters and actual needs.

[0008] Preferably, the mounting bracket includes a first bracket and a second bracket; the first bracket has a plurality of mounting posts spaced apart around its side facing the second bracket; the second bracket has mounting protrusions around its side facing the first bracket, corresponding one-to-one in number and position to the mounting posts; the first bracket and the second bracket are fixedly connected by inserting each mounting protrusion into a corresponding mounting post, and the interval between adjacent mounting posts is set as the air outlet; the air inlet is located on the first bracket; the impeller is located between the first bracket and the second bracket; one end of the impeller faces the first bracket and is located inside the air inlet; the other end of the impeller is fixedly mounted on one side of the second bracket.

[0009] Preferably, the first bracket includes an air inlet ring; the air inlet ring includes a circular ring and a hollow circle formed by the circular ring; the hollow circle is configured as the air inlet; two temperature sensors and two pressure sensors are disposed on the circular ring, and the two temperature sensors are respectively located at the two ends of a line segment passing through the hollow circle, and the two pressure sensors are respectively located at the two ends of a line segment passing through the hollow circle.

[0010] Preferably, one side of the second bracket includes four corners, with a wind speed sensor installed at each of two diagonally opposite corners, and a pressure sensor installed at each of the remaining two diagonally opposite corners.

[0011] Preferably, the wind turbine includes a motor, an impeller, and a hub; the intelligent control system is located inside the motor; the motor sequentially includes a motor head end, a motor rotating shaft, and a motor tail end; the motor head end is located at the air inlet; the motor tail end is fixedly installed on one side of the second bracket; one end of the hub faces the first bracket; the other end of the hub is fixedly installed on one side of the second bracket; a cylindrical through hole for the motor to pass through is provided at the center of the hub; the cylindrical through hole and the hollow circle are concentric; impeller mounting grooves are provided on the four side walls of the hub; the impeller is fixedly installed in the impeller mounting groove; the motor rotating shaft is located in the cylindrical through hole and fixedly connected to the hub for driving the hub to rotate.

[0012] Preferably, the intelligent control system includes a measurement and calculation module, a user input module, an airflow statistics module, a control module, and a power supply module. The first input terminal of the measurement and calculation module is electrically connected to the plurality of temperature sensors, pressure sensors, and wind speed sensors, for acquiring signals from these sensors and calculating measurement data. The output terminal of the user input module is electrically connected to the second input terminal of the measurement and calculation module, for inputting target data to the measurement and calculation module. The output terminal of the airflow statistics module is electrically connected to the third input terminal of the measurement and calculation module, for collecting and sending the airflow data generated during the operation of the wind turbine to the measurement and calculation module. The first output terminal of the measurement and calculation module is electrically connected to the first input terminal of the control module, for generating speed control commands and sending them to the control module. The output terminal of the control module is electrically connected to the input terminal of the power supply module, for controlling the voltage output of the power supply module according to the speed control commands. The output terminal of the power supply module is electrically connected to the wind turbine, for outputting voltage to power the wind turbine according to the control of the control module.

[0013] Preferably, the intelligent control system further includes an alarm module; the second output terminal of the measurement and calculation module and the input terminal of the alarm module are electrically connected, for generating an alarm command and sending it to the alarm module; the alarm module is used to receive the alarm command from the measurement and calculation module and trigger an alarm.

[0014] The present invention also provides a control method for an intelligent wind turbine, applied to the aforementioned intelligent wind turbine, the control method comprising the following steps:

[0015] Sa1. The user input module inputs the target temperature T0 into the measurement and calculation module;

[0016] Sa2. Multiple temperature sensors measure multiple temperature signals in real time when the intelligent fan is working. The measurement and calculation module calculates the average temperature T1 based on the multiple temperature signals.

[0017] Sa3. Compare the values ​​of T0 and T1, and send the corresponding first speed regulation command to the control module based on the comparison result;

[0018] Sa4. The control module adjusts the output voltage of the power supply module, further adjusts the speed of the wind turbine, and then returns to step Sa2 until T1 and T0 are the same.

[0019] Preferably, the control method further includes:

[0020] Multiple pressure sensors at the air inlet measure multiple intake static pressure signals in real time during the operation of the intelligent fan. The measurement and calculation module calculates the average intake static pressure P1 based on these signals. Similarly, multiple pressure sensors at the air outlet measure multiple outlet static pressure signals in real time during the operation of the intelligent fan. The measurement and calculation module calculates the average outlet static pressure P2 based on these signals. The measurement and calculation module then calculates the difference between P1 and P2 to obtain the static pressure difference ΔP. Multiple wind speed sensors measure multiple wind speed signals around the intelligent fan in real time during operation. The measurement and calculation module calculates the average wind speed V based on these signals. The airflow statistics module counts the airflow Q generated during the operation of the impeller.

[0021] The control module controls the power supply module to output the highest voltage U. max To drive the wind turbine; the measurement and calculation module determines the highest voltage U. max The first curve showing ΔP as a function of Q and the second curve showing Q as a function of V are recorded, along with the maximum static pressure difference ΔP in both curves. max Maximum air volume Q max Maximum wind speed V max .

[0022] Preferably, the control method further includes the following steps:

[0023] Sb1. The user input module inputs the target air volume Q0 into the measurement and calculation module;

[0024] Sb2. The measurement and calculation module obtains the target wind speed V0 corresponding to the target air volume Q0 based on the second curve;

[0025] Sb3. Multiple wind speed sensors measure multiple wind speed signals around the smart wind turbine in real time when it is working. The measurement and calculation module calculates the average wind speed V1 based on the multiple wind speed signals.

[0026] Sb4. Compare the magnitudes of V0 and V1, and send the corresponding second speed control command to the control module based on the comparison result;

[0027] Sb5. The control module adjusts the output voltage of the power supply module, further adjusts the speed of the wind turbine, and then returns to step Sb3 until V1 and V0 are the same.

[0028] Beneficial effects:

[0029] This invention discloses an intelligent fan and its control method. Multiple temperature sensors, multiple pressure sensors, and multiple wind speed sensors are installed on the mounting frame of the intelligent fan. The intelligent fan also includes an intelligent control system. The measurement and calculation module of the intelligent control system calculates real-time parameters such as temperature, static pressure difference, wind speed, and air volume during the operation of the intelligent fan based on the multiple temperature sensors, pressure sensors, and wind speed sensors. This allows the intelligent fan to control the impeller according to the target wind speed and target temperature input by the user input module to meet speed regulation requirements. Furthermore, when the wind speed calculated by the measurement and calculation module is too high, the alarm module of the intelligent control system will issue an alarm. Attached Figure Description

[0030] Figure 1 The image shown is a front view of a smart fan according to Embodiment 1;

[0031] Figure 2 As shown Figure 1 Top view;

[0032] Figure 3 As shown Figure 1 A bottom view;

[0033] Figure 4 As shown Figure 2 Side view;

[0034] Figure 5 As shown Figure 1 An exploded image of the wind turbine;

[0035] Figure 6 The diagram shown is a structural block diagram of the intelligent control system in Embodiment 1.

[0036] Figure 7 The image shown is a schematic diagram of a first curve in Embodiment 2;

[0037] Figure 8 The image shown is a schematic diagram of a second curve according to Embodiment 2;

[0038] Figure 9 The following is a first flowchart of Embodiment 2;

[0039] Figure 10 The following is a second flowchart of Embodiment 2.

[0040] Figure Labels

[0041] 10. First support; 11. First temperature sensor; 12. Second temperature sensor; 13. First pressure sensor; 14. Second pressure sensor; 15. Air inlet ring; 20. Fan wheel; 21. Motor head end; 211. Motor rotating shaft; 22. Intelligent control system; 23. Motor tail end; 24. Impeller; 25. Hub; 30. Second support; 41. First wind speed sensor; 42. Second wind speed sensor; 43. Third pressure sensor; 44. Fourth pressure sensor. Detailed Implementation

[0042] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0043] The technical solution of the present invention will be described in detail below with specific embodiments.

[0044] Example 1

[0045] like Figures 1-6 As shown, an intelligent fan in this embodiment includes a mounting frame, a fan wheel 20, and an intelligent control system 22. The fan wheel 20 is installed inside the mounting frame. One end of the mounting frame is provided with an air inlet, and the four sides of the mounting frame are provided with air outlets. The fan wheel 20 controls air to flow in through the air inlet and out through the air outlets. Multiple temperature sensors, multiple pressure sensors, and multiple wind speed sensors are installed on the mounting frame. Multiple temperature sensors are located near the air inlet. Multiple pressure sensors are located near the air outlet and the air inlet, respectively. Multiple wind speed sensors are located near the air outlet. The intelligent control system 22 is installed inside the fan wheel 20. The multiple temperature sensors, multiple pressure sensors, and multiple wind speed sensors are all electrically connected to the intelligent control system 22. The intelligent control system 22 controls the rotational speed of the fan wheel.

[0046] Preferably, the mounting bracket includes a first bracket 10 and a second bracket 30; the first bracket 10 has a plurality of mounting posts spaced around its perimeter on one side facing the second bracket 30; the second bracket 30 has mounting protrusions on its perimeter on one side facing the first bracket 10, corresponding one-to-one with the number and position of the mounting posts; the first bracket 10 and the second bracket 30 are fixedly connected by inserting each mounting protrusion into the corresponding mounting post, and the interval between adjacent mounting posts is set as an air outlet; an air inlet is provided on the first bracket 10; a fan wheel 20 is located between the first bracket 10 and the second bracket 30; one end of the fan wheel 20 faces the first bracket 10 and is located inside the air inlet; the other end of the fan wheel 20 is fixedly installed on one side of the second bracket 30.

[0047] Preferably, the first bracket 10 includes an air inlet ring 15; the air inlet ring 15 includes a circular ring and a hollow circle formed by the circular ring; the hollow circle is set as an air inlet; two temperature sensors and two pressure sensors are provided on the circular ring, and the two temperature sensors are respectively located at the two ends of a line segment passing through the hollow circle, and the two pressure sensors are respectively located at the two ends of a line segment passing through the hollow circle.

[0048] Preferably, one side of the second bracket 30 includes four corners, with a wind speed sensor installed at two of the diagonally opposite corners and a pressure sensor installed at the remaining two diagonally opposite corners.

[0049] Specifically, in this embodiment, the intelligent fan has a first temperature sensor 11 and a second temperature sensor 12 symmetrically arranged with respect to the center of the hollow circle on the air inlet ring 15 of the first bracket 10; and a first pressure sensor 13 and a second pressure sensor 14 symmetrically arranged with respect to the center of the hollow circle on the air inlet ring 15 of the first bracket 10.

[0050] Specifically, in this embodiment, the intelligent fan has a first wind speed sensor 41 and a second wind speed sensor 42 that are symmetrical about the center point of the side of the second bracket 30 facing the first bracket 10, and a third pressure sensor 43 and a fourth pressure sensor 44 that are symmetrical about the center point of the side.

[0051] Preferably, the wind turbine 20 includes a motor, an impeller 24, and a hub 25; the intelligent control system 22 is located inside the motor; the motor includes a motor head end 21, a motor rotating shaft 211, and a motor tail end 23 in sequence; the motor head end 21 is located at the air inlet; the motor tail end 23 is fixedly installed on one side of the second bracket 30; one end of the hub 25 faces the first bracket 10; the other end of the hub 25 is fixedly installed on one side of the second bracket 30; a cylindrical through hole for the motor to pass through is provided at the center of the hub 25; the cylindrical through hole and the hollow circle are concentric; impeller 24 mounting grooves are provided on the four sides of the hub 25; the impeller 24 is fixedly installed in the impeller 24 mounting grooves; the motor rotating shaft 211 is located in the cylindrical through hole and fixedly connected to the hub 25 for driving the hub 25 to rotate.

[0052] Preferably, the intelligent control system 22 includes a measurement and calculation module, a user input module, an air volume statistics module, a control module, and a power supply module. The first input terminal of the measurement and calculation module is electrically connected to multiple temperature sensors, multiple pressure sensors, and multiple wind speed sensors to acquire signals from these sensors and calculate measurement data. The output terminal of the user input module is electrically connected to the second input terminal of the measurement and calculation module to input target data to the measurement and calculation module. The output terminal of the air volume statistics module is electrically connected to the third input terminal of the measurement and calculation module to collect and send the air volume data generated during the operation of the wind turbine 20 to the measurement and calculation module. The first output terminal of the measurement and calculation module is electrically connected to the first input terminal of the control module to generate speed control commands and send them to the control module. The output terminal of the control module is electrically connected to the input terminal of the power supply module to control the voltage output of the power supply module according to the speed control commands. The output terminal of the power supply module is electrically connected to the wind turbine 20 to output voltage to supply power to the wind turbine 20 according to the control of the control module.

[0053] Specifically, in this embodiment, the first temperature sensor 11 measures the temperature T11 of the air inlet and sends it to the measurement and calculation module, and the second temperature sensor 12 measures the temperature T12 of the air inlet and sends it to the measurement and calculation module. The measurement and calculation module calculates the average value T of T11 and T12.

[0054] Specifically, in this embodiment, the first pressure sensor 13 measures the static pressure P13 at the air inlet and sends it to the measurement and calculation module; the second pressure sensor 14 measures the static pressure P14 at the air inlet and sends it to the measurement and calculation module; the measurement and calculation module calculates the average value P1 of P13 and P14; the third pressure sensor 43 measures the static pressure P43 at the air outlet and sends it to the measurement and calculation module; the fourth pressure sensor 44 measures the static pressure P44 at the air outlet and sends it to the measurement and calculation module; the measurement and calculation module calculates the average value P2 of P43 and P44; and then calculates the difference ΔP between P1 and P2.

[0055] Specifically, in this embodiment, the first wind speed sensor 41 measures the wind speed V41 near the smart wind turbine and sends it to the measurement and calculation module, and the second wind speed sensor 42 measures the wind speed V42 near the smart wind turbine and sends it to the measurement and calculation module. The measurement and calculation module calculates the average value V of V41 and V42.

[0056] Preferably, the intelligent control system 22 further includes an alarm module; the second output terminal of the measurement and calculation module is electrically connected to the input terminal of the alarm module, and is used to generate an alarm command and send it to the alarm module; the alarm module is used to receive the alarm command from the measurement and calculation module and trigger an alarm.

[0057] Specifically, when the average value V calculated by the measurement and calculation module is too high, the measurement and calculation module generates an alarm command and sends it to the alarm module, causing the alarm module to issue an alarm.

[0058] Example 2

[0059] The control method for the intelligent fan in this embodiment is applied to the intelligent fan of Embodiment 1. The control method includes: multiple temperature sensors measuring multiple temperature signals in real time when the intelligent fan is working, and a measurement and calculation module calculating the average temperature T based on the multiple temperature signals; multiple pressure sensors at the air inlet measuring multiple air intake static pressure signals in real time when the intelligent fan is working, and a measurement and calculation module calculating the average air intake static pressure P1 based on the multiple air intake static pressure signals; multiple pressure sensors at the air outlet measuring multiple air outlet static pressure signals in real time when the intelligent fan is working, and a measurement and calculation module calculating the average air outlet static pressure P2 based on the multiple air outlet static pressure signals; the measurement and calculation module calculating the difference between P1 and P2 to obtain the static pressure difference ΔP; multiple wind speed sensors measuring multiple wind speed signals around the intelligent fan in real time when it is working, and a measurement and calculation module calculating the average wind speed V based on the multiple wind speed signals; and an air volume statistics module counting the air volume Q generated during the operation of the fan wheel.

[0060] Preferably, the control method further includes: the control module controlling the power supply module to output the highest voltage U. max To drive the wind turbine; the measurement and calculation module determines the highest voltage U. max The first curve showing ΔP as a function of Q and the second curve showing Q as a function of V are recorded, along with the maximum static pressure difference ΔP in both curves. max Maximum air volume Q max Maximum wind speed V max .

[0061] Specifically, such as Figures 7-8 The first curve and the second curve in this embodiment are shown.

[0062] Preferably, the control method further includes: a user input module inputting a target temperature T0 to a measurement and calculation module; the measurement and calculation module measuring the average temperature T1 at this time, comparing the magnitudes of T0 and T1, and sending a corresponding first speed adjustment command to the control module based on the comparison result; the control method further includes: a user input module inputting a target air volume Q0 to a measurement and calculation module; the measurement and calculation module obtaining a target wind speed V0 corresponding to the target air volume Q0 based on a second curve; simultaneously, the measurement and calculation module measuring the average wind speed V1 at this time, comparing the magnitudes of V0 and V1, and sending a corresponding second speed adjustment command to the control module based on the comparison result.

[0063] That is, control methods include, for example Figure 9The following steps are shown:

[0064] Sa1. The user input module inputs the target temperature T0 into the measurement and calculation module;

[0065] Sa2. Multiple temperature sensors measure multiple temperature signals in real time when the intelligent fan is working. The measurement and calculation module calculates the average temperature T1 based on the multiple temperature signals.

[0066] Sa3. Compare the values ​​of T0 and T1, and send the corresponding first speed regulation command to the control module based on the comparison result;

[0067] Sa4. The control module adjusts the output voltage of the power supply module, further adjusts the speed of the wind turbine, and then returns to step Sa2 until T1 and T0 are close in magnitude.

[0068] Control methods also include, for example Figure 10 The following steps are shown:

[0069] Sb1. The user input module inputs the target air volume Q0 into the measurement and calculation module;

[0070] Sb2. The measurement and calculation module obtains the target wind speed V0 corresponding to the target air volume Q0 based on the second curve;

[0071] Sb3. Multiple wind speed sensors measure multiple wind speed signals around the smart wind turbine in real time when it is working. The measurement and calculation module calculates the average wind speed V1 based on the multiple wind speed signals.

[0072] Sb4. Compare the magnitudes of V0 and V1, and send the corresponding second speed control command to the control module based on the comparison result;

[0073] Sb5. The control module adjusts the output voltage of the power supply module, further adjusts the speed of the wind turbine, and then returns to step Sb3 until V1 and V0 are close in magnitude.

[0074] Specifically, when the measurement and calculation module finds that T0 is greater than T1, it sends a first speed regulation command to the control module to reduce the wind speed, and the control module then controls the power supply module to reduce the voltage output; when the measurement and calculation module finds that T0 is less than T1, it sends a first speed regulation command to the control module to increase the wind speed, and the control module then controls the power supply module to increase the voltage output.

[0075] Specifically, when the measurement and calculation module finds that V0 is greater than V1, it sends a second speed regulation command to the control module to increase the wind speed, and the control module then controls the power supply module to increase the voltage output; when the measurement and calculation module finds that V0 is less than V1, it sends a second speed regulation command to the control module to decrease the wind speed, and the control module then controls the power supply module to decrease the voltage output.

[0076] Specifically, the control method for the intelligent fan in this embodiment is a closed-loop control system. The measurement and calculation module calculates real-time parameters such as temperature, static pressure difference, wind speed, and air volume during the operation of the intelligent fan based on multiple temperature sensors, multiple pressure sensors, and multiple wind speed sensors. That is, when the control module controls the power supply module to increase or decrease the voltage output, the measurement and calculation module continues to send corresponding speed adjustment commands to the control module based on the real-time changes in parameters such as temperature, static pressure difference, wind speed, and air volume, so that the temperature or air volume gradually approaches the target temperature T0 or target air volume Q0 input by the user input module. Furthermore, when the average wind speed V calculated by the measurement and calculation module is too high, an alarm signal is sent to trigger an alarm from the alarm module.

[0077] Example 3

[0078] As another implementation of Embodiment 1, this embodiment places the wind speed sensor near the air inlet.

[0079] Example 4

[0080] Based on the intelligent fan in Embodiment 1, this embodiment adds a communication module to the intelligent control system. This communication module can communicate with a PC or mobile device via wired or wireless communication to send real-time parameters of the intelligent fan during its operation to the PC or mobile device, allowing users to monitor the working status of the intelligent fan via PC or mobile device.

[0081] The embodiments of the intelligent fan and its control method provided by the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention, and the descriptions of the embodiments above are only for the purpose of helping to understand the core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A smart fan, characterized in that, The system includes a mounting frame, a fan wheel (20), and an intelligent control system (22). The fan wheel (20) is installed inside the mounting frame. One end of the mounting frame is provided with an air inlet, and the four sides of the mounting frame are provided with air outlets. The fan wheel (20) controls air to flow in from the air inlet and out from the air outlet. The mounting frame is provided with multiple temperature sensors, multiple pressure sensors, and multiple wind speed sensors. The multiple temperature sensors are close to the air inlet. The multiple pressure sensors are close to the air outlet and the air inlet, respectively. The multiple wind speed sensors are close to the air outlet or the air inlet. The intelligent control system (22) is installed inside the fan wheel (20). The multiple temperature sensors, multiple pressure sensors, and multiple wind speed sensors are all electrically connected to the intelligent control system (22). The intelligent control system (22) controls the rotational speed of the fan wheel (20). The mounting bracket includes a first bracket (10) and a second bracket (30); the first bracket (10) has a plurality of mounting posts spaced around its side facing the second bracket (30); the second bracket (30) has mounting protrusions corresponding to the number and position of the mounting posts around its side facing the first bracket (10); the first bracket (10) and the second bracket (30) are fixedly connected by inserting each mounting protrusion into the corresponding mounting post, and the interval between adjacent mounting posts is set as the air outlet; the air inlet is located on the first bracket (10); the impeller (20) is located between the first bracket (10) and the second bracket (30); one end of the impeller (20) faces the first bracket (10) and is located inside the air inlet; the other end of the impeller (20) is mounted on one side of the second bracket (30); The first bracket (10) includes an air inlet ring (15); the air inlet ring (15) includes a circular ring and a hollow circle formed by the circular ring; the hollow circle is set as the air inlet; two temperature sensors and two pressure sensors are provided on the circular ring, and the two temperature sensors are respectively located at the two ends of a line segment passing through the hollow circle, and the two pressure sensors are respectively located at the two ends of a line segment passing through the hollow circle; the two temperature sensors on the circular ring are symmetrically arranged with the center of the hollow circle as the center, and the two pressure sensors on the circular ring are symmetrically arranged with the center of the hollow circle as the center; The second bracket (30) has four corners on one side facing the first bracket (10), and two of the corners that are diagonally opposite each other are each provided with a wind speed sensor, and the remaining two corners that are diagonally opposite each other are each provided with a pressure sensor; the two wind speed sensors on the second bracket (30) are symmetrically arranged with the center point of the side as the center, and the two pressure sensors on the second bracket (30) are symmetrically arranged with the center point of the side as the center.

2. The intelligent fan according to claim 1, characterized in that, The wind turbine (20) includes a motor, an impeller (24), and a hub (25); the intelligent control system (22) is located inside the motor; the motor sequentially includes a motor head end (21), a motor rotating shaft (211), and a motor tail end (23); the motor head end (21) is located at the air inlet; the motor tail end (23) is fixedly installed on one side of the second bracket (30); one end of the hub (25) faces the first bracket (10); the other end of the hub (25)... One end is rotatably mounted on one side of the second bracket (30); the center of the hub (25) is provided with a cylindrical through hole for the motor to pass through; the cylindrical through hole and the hollow circle are concentric; the four sides of the hub (25) are provided with impeller (24) mounting grooves; the impeller (24) is fixedly mounted in the impeller (24) mounting groove; the motor rotating shaft (211) is located in the cylindrical through hole and fixedly connected to the hub (25) for driving the hub (25) to rotate.

3. The intelligent fan according to claim 1, characterized in that, The intelligent control system (22) includes a measurement and calculation module, a user input module, an air volume statistics module, a control module, and a power supply module. The first input terminal of the measurement and calculation module is electrically connected to the multiple temperature sensors, multiple pressure sensors, and multiple wind speed sensors, and is used to acquire the signals of the multiple temperature sensors, multiple pressure sensors, and multiple wind speed sensors and calculate the measurement data. The output terminal of the user input module is electrically connected to the second input terminal of the measurement and calculation module, and is used to input target data to the measurement and calculation module. The output terminal of the air volume statistics module is electrically connected to the third input terminal of the measurement and calculation module, and is used to collect the air volume data generated by the wind turbine (20) during operation and send it to the measurement and calculation module. The first output terminal of the measurement and calculation module is electrically connected to the first input terminal of the control module, and is used to generate a speed adjustment command and send it to the control module. The output terminal of the control module is electrically connected to the input terminal of the power supply module, and is used to control the voltage output of the power supply module according to the speed adjustment command. The output terminal of the power supply module is electrically connected to the wind turbine (20), and is used to output voltage to supply power to the wind turbine (20) according to the control of the control module.

4. The intelligent fan according to claim 3, characterized in that, The intelligent control system (22) further includes an alarm module; the second output terminal of the measurement and calculation module and the input terminal of the alarm module are electrically connected to generate an alarm command and send it to the alarm module; the alarm module is used to receive the alarm command from the measurement and calculation module and issue an alarm.

5. A control method for an intelligent fan, characterized in that, The control method, applied to the intelligent fan of claim 3 or 4, includes the following steps: Sa1. The user input module inputs the target temperature T0 into the measurement and calculation module; Sa2. Multiple temperature sensors measure multiple temperature signals in real time when the intelligent fan is working. The measurement and calculation module calculates the average temperature T1 based on the multiple temperature signals. Sa3. Compare the values ​​of T0 and T1, and send the corresponding first speed regulation command to the control module based on the comparison result; Sa4. The control module adjusts the output voltage of the power supply module, further adjusts the speed of the wind turbine, and then returns to step Sa2 until T1 and T0 are the same.

6. The control method according to claim 5, characterized in that, The control method further includes: Multiple pressure sensors at the air inlet measure multiple intake static pressure signals in real time during the operation of the intelligent fan. The measurement and calculation module calculates the average intake static pressure P1 based on these signals. Similarly, multiple pressure sensors at the air outlet measure multiple outlet static pressure signals in real time during the operation of the intelligent fan. The measurement and calculation module calculates the average outlet static pressure P2 based on these signals. The measurement and calculation module then calculates the difference between P1 and P2 to obtain the static pressure difference ΔP. Multiple wind speed sensors measure multiple wind speed signals around the intelligent fan in real time during operation. The measurement and calculation module calculates the average wind speed V based on these signals. The airflow statistics module counts the airflow Q generated during the operation of the impeller. The control module controls the power supply module to output the highest voltage U. max To drive the wind turbine; the measurement and calculation module determines the highest voltage U. max The first curve showing ΔP as a function of Q and the second curve showing Q as a function of V are recorded, along with the maximum static pressure difference ΔP in both curves. max Maximum air volume Q max Maximum wind speed V max .

7. The control method according to claim 6, characterized in that, The control method further includes the following steps: Sb1. The user input module inputs the target air volume Q0 into the measurement and calculation module; Sb2. The measurement and calculation module obtains the target wind speed V0 corresponding to the target air volume Q0 based on the second curve; Sb3. Multiple wind speed sensors measure multiple wind speed signals around the smart wind turbine in real time when it is working. The measurement and calculation module calculates the average wind speed V1 based on the multiple wind speed signals. Sb4. Compare the magnitudes of V0 and V1, and send the corresponding second speed control command to the control module based on the comparison result; Sb5. The control module adjusts the output voltage of the power supply module, further adjusts the speed of the wind turbine, and then returns to step Sb3 until V1 and V0 are the same.

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