Intelligent control and management system for inflator pump

Abstract

The invention discloses an intelligent control and management system for an inflator pump, and the system achieves the cooperative work of five core function modules through an integrated embedded control technology: an air pressure closed-loop control module employs a PID algorithm and a high-precision pressure sensor, dynamically adjusts the rotating speed of a motor, and achieves + / -1PSI air pressure control precision; the multi-mode self-adaptive module is internally provided with an intelligent air tap identification system, is automatically matched with inflation modes of automobiles, balls and the like, and supports four-unit dynamic switching of PSI / BAR / KPA and the like; the man-machine interaction module is provided with a four-key control panel and an LED / LCD display screen, and is combined with an EEPROM storage technology to store user operation parameters; the intelligent management module realizes automatic start and stop, stable air pressure control and low-power protection, and supports external power supply charging and progress display; the power supply management module is compatible with vehicle-mounted 12V and lithium battery power supply, and has overvoltage / undervoltage protection. The stability and maintainability of the system are improved through modular design, the system is suitable for multiple scenes such as automobile tires, bicycles and balls, and the inflation efficiency and safety are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the field of air pump control technology, and specifically to an intelligent control and management system for air pumps, which is suitable for various inflation scenarios requiring precise air pressure control, such as inflation of automobile tires, motorcycle tires, bicycle tires, and balls. Background Art

[0002] Traditional air pumps have significant technical defects during the inflation process, making it difficult to meet the requirements of modern diversified scenarios for accurate, convenient, and safe air pressure control. The specific problems are as follows:

[0003] Operation relies on manual intervention and has low control accuracy

[0004] Traditional air pumps typically use a mechanical pressure gauge or a simple digital display. Users must continuously monitor the air pressure and manually adjust the motor switch or valve to control the amount of air being inflated. However, manual operation can result in response delays and errors in judgment, especially when approaching the target pressure. This can easily lead to over- or under-inflation due to delayed response. For example, the standard air pressure for car tires is typically 32-35 PSI, but with traditional equipment, users must pay close attention after inflating to 30 PSI. The slightest mistake can cause the air pressure to exceed the safe range, posing a safety hazard. Furthermore, the measurement error of a mechanical pressure gauge can reach ±3 PSI, further reducing inflation reliability.

[0005] Poor scene adaptability and insufficient versatility

[0006] Different items have significantly different requirements for inflation pressure. For example, bicycle tire pressure is usually 60-100PSI, while the pressure of a soccer ball is only 8.5-15.6PSI. Traditional air pumps require users to manually set the air pressure value according to the type of item, but lack intelligent recognition capabilities, resulting in the need to repeatedly consult the parameter table and adjust the equipment when used across scenarios. The operation is cumbersome and prone to errors. In addition, traditional equipment usually only supports a single air pressure unit (such as PSI), while different countries and regions may use units such as BAR and KPA, further limiting its global application.

[0007] Single function and lack of intelligent management

[0008] Traditional air pumps only have basic inflation functions and cannot achieve full-process automated management. For example, when inflation is completed, the user needs to manually turn off the device. If the operation is forgotten, the motor may continue to run, causing overheating or battery loss. At the same time, traditional devices lack power monitoring and low-battery protection functions. In outdoor or no backup power scenarios, inflation may be interrupted due to power exhaustion. In addition, the power supply mode of traditional air pumps is single (such as only supporting vehicle-mounted 12V power supply), and it is not compatible with lithium batteries or external power supplies, which limits its flexibility of use.

[0009] Weak anti-interference ability and poor stability

[0010] The sensors and control systems of traditional air pumps lack anti-interference capabilities and are easily affected by factors such as ambient temperature and vibration. For example, in low-temperature environments, the pressure sensor may cause measurement offsets due to material shrinkage; in vibrating environments, the pointer of a mechanical barometer may shake, making it difficult for users to accurately read the data. In addition, the motor control algorithms of traditional devices are simple (such as open-loop control) and cannot dynamically adjust the speed according to changes in air pressure. This leads to large pressure fluctuations during the inflation process, affecting the inflation quality.

[0011] In summary, traditional air pumps have significant shortcomings in terms of control accuracy, scenario adaptability, intelligent management, and anti-interference capabilities, making it difficult to meet modern users' demand for efficient, safe, and convenient inflation. Therefore, developing an air pump system with high-precision air pressure control, multi-mode adaptation, and full-process intelligent management is of great practical significance. Summary of the Invention

[0012] The purpose of the present invention is to provide an intelligent control and management system for an air pump. The system integrates an embedded control system, combines high-precision sensors, multi-mode adaptive algorithms and intelligent management strategies, to achieve precise air pressure control, multi-mode adaptive inflation and full-process automated management of the air pump.

[0013] To achieve the above objectives, the present invention provides the following technical solutions:

[0014] An intelligent control and management system for an air pump, comprising:

[0015] The air pressure closed-loop control module is used to dynamically adjust the motor speed based on the air pressure data collected in real time by the pressure sensor through an adaptive PID algorithm with soft start to achieve precise control of the air pressure. The soft start strategy first reads the initial pressure value of the current inflated container at the moment of motor startup and calculates the difference ΔP from the target pressure. When ΔP ≥ a first threshold value P1, the motor speed is slowly increased with a first duty cycle D1. When ΔP < P1, conventional PID control is directly entered with a second duty cycle D2, thus avoiding damage to the power supply, fuse, or other electronic components caused by instantaneous high current surges.

[0016] Multi-mode adaptive module, integrated with intelligent air nozzle recognition system, automatically matches the corresponding inflation mode, and supports dynamic switching of multiple units;

[0017] The human-computer interaction module provides a control panel to support user operations and parameter settings, and saves the unit settings and pressure parameters of the user's last operation;

[0018] Intelligent management module realizes automatic management of the inflation process, including automatic start and stop, air pressure stability control, power monitoring and low battery protection;

[0019] The power management module is responsible for monitoring and managing battery power and supports multiple power supply modes.

[0020] Furthermore, the air pressure closed-loop control module specifically includes:

[0021] Pressure sensor interface, used to collect air pressure data in real time;

[0022] The PID control unit dynamically adjusts the motor speed based on the deviation between the collected air pressure data and the preset air pressure value;

[0023] The filtering unit uses sliding filtering and hysteresis filtering algorithms to process sensor data to improve system stability and anti-interference ability.

[0024] Furthermore, the PID control unit controls the motor speed by adjusting the duty cycle of the PWM signal to achieve precise regulation of the air pressure.

[0025] Furthermore, the PID control unit further includes a soft start subunit, and the soft start subunit is configured to:

[0026] a) Read the initial pressure value of the container being inflated before the motor starts;

[0027] b) calculating the difference ΔP between the initial pressure value and the preset target pressure value;

[0028] c) when ΔP ≥ a first threshold value P1, gradually increasing the motor speed with a first duty cycle D1;

[0029] d) When ΔP < the first threshold value P1, directly enter the PID closed-loop regulation with the second duty cycle D2;

[0030] The first duty cycle D1 is smaller than the second duty cycle D2 to prevent instantaneous high current shock from damaging the power supply or circuit components.

[0031] Furthermore, the multi-mode adaptive module specifically includes:

[0032] Intelligent air nozzle recognition unit, automatically matching the corresponding inflation mode by identifying the air nozzle type;

[0033] Unit switching unit, supports PSI / BAR / KPA / KG / CM 2 Four units can be switched dynamically to meet the usage habits of different countries and regions.

[0034] Furthermore, the intelligent gas nozzle recognition unit identifies the gas nozzle type by detecting the physical characteristics or electronic identification of the gas nozzle, and automatically calls the corresponding inflation mode and air pressure preset value.

[0035] Furthermore, the human-computer interaction module specifically includes:

[0036] Control panel, including power button, unit switch button, setting + button, setting - button, used to receive user operation instructions;

[0037] Display unit, used to display current inflation status, air pressure value, and unit information;

[0038] The storage unit uses EEPROM memory to save the unit setting and pressure parameters of the user's last operation.

[0039] Furthermore, the display unit adopts an LED display screen or an LCD display screen, supports multi-color display and backlight adjustment, and improves user experience.

[0040] Furthermore, the intelligent management module specifically includes:

[0041] Automatic start-stop unit, which automatically controls the start and stop of the motor according to the inflation status and air pressure value;

[0042] The air pressure stabilization control unit ensures the stability of the air pressure during the inflation process by real-time monitoring and adjusting the air pressure;

[0043] The power monitoring and low-power protection unit monitors the battery power in real time and automatically enters the low-power protection state when the power is lower than the preset value; it also includes charging management, supports external power charging, and displays the charging progress during the charging process.

[0044] Furthermore, the power management module specifically includes:

[0045] Power monitoring unit, real-time monitoring of battery power and display of remaining power;

[0046] The power switching unit supports two power supply modes: vehicle-mounted 12V and lithium battery, and automatically switches according to the power supply conditions; it has overvoltage protection and undervoltage protection functions to ensure stable operation of the equipment under different power supply conditions

[0047] Low battery protection unit, when the battery power is lower than the preset value, it will automatically stop inflating and prompt the user to charge.

[0048] The intelligent control and management system for the air pump of the present invention has the following beneficial effects:

[0049] High-precision air pressure control: Using PID algorithm and wide-range pressure sensor to achieve high-precision air pressure control of ±1PSI to meet the inflation needs of different items.

[0050] Multi-mode adaptation: integrated intelligent air nozzle recognition system, automatically matches the corresponding inflation mode, supports dynamic switching of multiple units, and improves the versatility and ease of use of the equipment.

[0051] Intelligent management: realize the automation management of the inflation process, including automatic start and stop, air pressure stability control, power monitoring and low power protection and other functions, improve user experience and equipment safety.

[0052] Modular design: adopt the modular design idea, each function module is relatively independent and closely cooperates, facilitate the maintenance and upgrade of the system. BRIEF DESCRIPTION OF DRAWINGS

[0053] Figure 1 The system architecture schematic diagram of the intelligent control and management system of the inflator pump in the application is shown in the figure.

[0054] Figure 2 The program implementation flowchart of the intelligent control and management system of the inflator pump in the application is shown in the figure. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical scheme and advantages of the embodiments of the application clearer, the technical scheme in the embodiments of the application will be described clearly and completely below in conjunction with the drawings in the embodiments of the application. Obviously, the described embodiments are part of the embodiments of the application, not all the embodiments. The components of the embodiments of the application described and shown in the drawings here can be arranged and designed in various different configurations.

[0056] The application provides an intelligent control and management system of an inflator pump, comprising:

[0057] The air pressure closed-loop control module is used for dynamically adjusting the motor speed through the PID algorithm based on the air pressure data collected by the pressure sensor in real time, so as to realize the accurate control of air pressure.

[0058] The air pressure closed-loop control module specifically comprises:

[0059] The pressure sensor interface is used for collecting air pressure data in real time.

[0060] The PID control unit dynamically adjusts the motor speed according to the deviation of the collected air pressure data and the preset air pressure value.

[0061] The filter unit adopts the sliding filter and hysteresis filter algorithm to process the sensor data, so as to improve the system stability and anti-interference ability.

[0062] The PID control unit controls the motor speed by adjusting the duty cycle of the PWM signal, so as to realize the accurate adjustment of air pressure.

[0063] Specifically,

[0064] The air pressure closed-loop control module collects air pressure data in real time based on a pressure sensor and uses an adaptive PID algorithm with soft start to dynamically adjust the motor speed to achieve precise control of air pressure. After the system is powered on, the function airPump_SoftStart() first obtains the current container pressure P_now and calculates ΔP = |P_target - P_now|:

[0065] If ΔP ≥ P1 (P1 is 5 PSI in the example), the motor is started in a linearly increasing manner with a duty cycle D1 (20% in the example), and after a duration of t1 (1 second in the example), it switches to a conventional PID closed loop.

[0066] If ΔP<P1, then directly enter the conventional PID closed loop with duty cycle D2 (50% in the example);

[0067] This soft-start strategy effectively suppresses the current spike at startup, preventing the battery voltage from being pulled down, the fuse from blowing, or damage to the on-board electronic devices.

[0068] Multi-mode adaptive module, integrated with intelligent air nozzle recognition system, automatically matches the corresponding inflation mode, and supports dynamic switching of multiple units;

[0069] The multi-mode adaptive module specifically includes:

[0070] Intelligent air nozzle recognition unit, automatically matching the corresponding inflation mode by identifying the air nozzle type;

[0071] Unit switching unit, supports PSI / BAR / KPA / KG / CM 2 Four units can be switched dynamically to meet the usage habits of different countries and regions.

[0072] The intelligent air nozzle recognition unit identifies the air nozzle type by detecting the physical characteristics or electronic identification of the air nozzle, and automatically calls the corresponding inflation mode and air pressure preset value.

[0073] Specifically,

[0074] The multi-mode adaptive module integrates an intelligent air nozzle recognition system to automatically match the corresponding inflation mode (such as cars, motorcycles, bicycles, balls, etc.); it has four built-in standard modes, supporting PSI / BAR / KPA / KG / CM 2 Four units are dynamically switched to meet the usage habits of different countries and regions;

[0075] The airPump_Function(uint8_t mode) function automatically switches the inflation mode based on the user selection or the air nozzle type, and calls the corresponding air pressure preset value and unit conversion coefficient;

[0076] The intelligent gas nozzle recognition system can automatically adapt to different gas nozzle types and supports dynamic switching of multiple units, improving the versatility and ease of use of the equipment.

[0077] The human-computer interaction module provides a control panel to support user operations and parameter settings, and saves the unit settings and pressure parameters of the user's last operation;

[0078] The human-computer interaction module specifically includes:

[0079] Control panel, including power button, unit switch button, setting + button, setting - button, used to receive user operation instructions;

[0080] Display unit, used to display current inflation status, air pressure value, and unit information;

[0081] The storage unit uses EEPROM memory to save the unit setting and pressure parameters of the user's last operation.

[0082] The display unit adopts an LED display screen or an LCD display screen, supports multi-color display and backlight adjustment, and improves user experience.

[0083] Specifically,

[0084] The human-computer interaction module provides a four-button control panel (power on, unit switching, setting +, setting -), supports high and low pressure warning functions; built-in EEPROM memory saves the unit setting and pressure parameters of the user's last operation for easy use next time;

[0085] The key scanning function key_scan() detects user operations and calls corresponding processing functions (such as s_sys_addKey_fun(), s_sys_subKey_fun(), etc.) to implement parameter adjustment and mode switching; at the same time, the EEPROM read and write functions (such as eeprom_WriteWord(), eeprom_ReadWord()) are used to save and read user settings;

[0086] The simple and intuitive four-button control panel design, combined with EEPROM storage technology, enhances user experience and operational convenience.

[0087] Intelligent management module realizes automatic management of the inflation process, including automatic start and stop, air pressure stability control, power monitoring and low battery protection;

[0088] The intelligent management module specifically includes:

[0089] Automatic start-stop unit, which automatically controls the start and stop of the motor according to the inflation status and air pressure value;

[0090] The air pressure stabilization control unit ensures the stability of the air pressure during the inflation process by real-time monitoring and adjusting the air pressure;

[0091] The power monitoring and low-power protection unit monitors the battery power in real time and automatically enters the low-power protection state when the power is lower than the preset value; it also includes charging management, supports external power charging, and displays the charging progress during the charging process.

[0092] Specifically,

[0093] The intelligent management module realizes the automatic management of the inflation process, including automatic start and stop, air pressure stability control, power monitoring and low-battery protection, etc. It automatically adjusts the working mode according to the battery power and external power supply conditions to extend the service life of the equipment.

[0094] Automatic switching between air pump mode and charging mode is achieved through functions such as sys_Mode_AirPump() and sys_Mode_Charge(). Battery power information is monitored and updated using functions such as power_Acquir() and power_spUpdate() to ensure stable operation of the device under different power conditions.

[0095] Full-process automated management improves the intelligence level and safety of equipment.

[0096] The power management module is responsible for monitoring and managing battery power and supports multiple power supply modes.

[0097] The power management module specifically includes:

[0098] Power monitoring unit, real-time monitoring of battery power and display of remaining power;

[0099] The power switching unit supports two power supply modes: on-board 12V and lithium battery, and automatically switches according to the power supply situation; it has overvoltage protection and undervoltage protection functions to ensure stable operation of the equipment under different power supply conditions;

[0100] Low battery protection unit, when the battery power is lower than the preset value, it will automatically stop inflating and prompt the user to charge.

[0101] Specifically,

[0102] The power management module is responsible for monitoring and managing battery power, supporting both on-board 12V and lithium battery power supply modes, improving the applicability and flexibility of the device. It also has overvoltage protection and undervoltage protection functions to ensure safe operation of the device.

[0103] The battery power is monitored in real time through the power monitoring unit, the power switching unit automatically switches the power supply mode according to the power supply situation, and the low power protection unit automatically stops charging when the power is insufficient and prompts the user to charge.

[0104] Modular power management design supports multiple power supply modes, enhancing device adaptability and safety. Specific embodiment:

[0106] Hardware composition

[0107] Main control unit: uses 8-bit MCU as the main control chip, responsible for the coordination and control of the entire system;

[0108] Sensor unit: including pressure sensor, voltage sensor and current sensor, used to monitor air pressure, voltage and current parameters in real time;

[0109] Execution unit: includes motor and solenoid valve, used to perform inflation and deflation operations;

[0110] Display and interaction unit: uses LED display and key panel to display inflation status and receive user instructions;

[0111] Power management unit: responsible for battery charging management, power switching and low battery protection functions.

[0112] Software Implementation

[0113] Initialization: After the system is powered on, hardware initialization and parameter loading are performed, including reading the last saved unit settings and pressure parameters from EEPROM;

[0114] Air pressure control: The motor speed is adjusted in real time through the PID algorithm to ensure accurate control of the inflation pressure. At the same time, the sliding filter and hysteresis filter algorithms are used to process sensor data to improve the stability and anti-interference ability of the system. That is, the AD value is converted through the airPump_AdcToPressure() function, and the PID algorithm is used to adjust the PWM duty cycle.

[0115] Mode switching: Automatically switches the inflation mode based on user selection or intelligent air nozzle recognition results, and calls the corresponding air pressure preset value and unit conversion coefficient. That is, the airPump_Function(uint8_t mode) function switches the mode based on the air nozzle type or user selection;

[0116] Power management: Real-time monitoring of battery power and external power supply conditions, automatically adjusting the working mode or entering low-power protection state according to the power conditions. At the same time, in charging mode, the charging status is monitored and the charging progress is displayed. That is, the power_Acquir() function monitors the power and triggers protection when the power is low;

[0117] User interaction: interact with the user through the LED display screen and the key panel, display the current inflation state, air pressure value, unit information, and receive user instructions for parameter adjustment and mode switching, that is, the key_scan() function detects key input, and the eeprom_WriteWord() saves settings.

[0118] Implement application:

[0119] Car tire inflation: the intelligent air valve recognition unit automatically matches the car mode, the preset air pressure value is 32 PSI, and the system automatically completes inflation and stops;

[0120] Ball inflation: switch to the ball mode, select KPA as the unit, and the system adjusts the air pressure range according to the ball type;

[0121] Low power scenario: when the power is lower than 15%, the system stops inflation and prompts charging, and automatically resumes work after switching to an external power source.

[0122] The above describes the present application and its embodiments, which are not limited, and the drawings only show one of the embodiments of the present application, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the purpose of the present application, similar structural modes and embodiments can be designed without creativity, which should belong to the protection scope of the present application.

Claims

1. An intelligent control and management system for an air pump, characterized in that: include: The air pressure closed-loop control module is used to dynamically adjust the motor speed based on the air pressure data collected in real time by the pressure sensor through an adaptive PID algorithm with soft start, thereby achieving precise control of the air pressure. The soft start strategy first reads the initial pressure value of the current inflated container at the moment of motor startup and calculates the difference ΔP from the target pressure. When ΔP ≥ a first threshold value P1, the motor speed is slowly increased with a first duty cycle D1. When ΔP < P1, conventional PID control is directly entered with a second duty cycle D2, thus avoiding damage to the power supply, fuse, or other electronic components caused by instantaneous high current surges. Multi-mode adaptive module, integrated with intelligent air nozzle recognition system, automatically matches the corresponding inflation mode, and supports dynamic switching of multiple units; The human-computer interaction module provides a control panel to support user operations and parameter settings, and saves the unit settings and pressure parameters of the user's last operation; Intelligent management module realizes automatic management of the inflation process, including automatic start and stop, air pressure stability control, power monitoring and low battery protection; The power management module is responsible for monitoring and managing battery power and supports multiple power supply modes.

2. The intelligent control and management system for an air pump according to claim 1, characterized in that: The air pressure closed-loop control module specifically includes: Pressure sensor interface, used to collect air pressure data in real time; The PID control unit dynamically adjusts the motor speed based on the deviation between the collected air pressure data and the preset air pressure value; The filtering unit uses sliding filtering and hysteresis filtering algorithms to process sensor data to improve system stability and anti-interference ability.

3. The intelligent control and management system for an air pump according to claim 2, characterized in that: The PID control unit controls the motor speed by adjusting the duty cycle of the PWM signal to achieve precise regulation of the air pressure.

4. The intelligent control and management system for an air pump according to claim 2, characterized in that: The PID control unit further includes a soft start subunit, which is configured to: a) Read the initial pressure value of the container being inflated before the motor starts; b) calculating the difference ΔP between the initial pressure value and the preset target pressure value; c) when ΔP ≥ a first threshold value P1, gradually increasing the motor speed with a first duty cycle D1; d) When ΔP < the first threshold value P1, directly enter the PID closed-loop regulation with the second duty cycle D2; The first duty cycle D1 is smaller than the second duty cycle D2 to prevent instantaneous large current shock from damaging the power supply or circuit components.

5. The intelligent control and management system for an air pump according to claim 1, characterized in that: The multi-mode adaptive module specifically includes: Intelligent air nozzle recognition unit, automatically matching the corresponding inflation mode by identifying the air nozzle type; Unit switching unit, supports PSI / BAR / KPA / KG / CM 2 Four units can be switched dynamically to meet the usage habits of different countries and regions.

6. The intelligent control and management system for an air pump according to claim 5, characterized in that: The intelligent air nozzle recognition unit identifies the air nozzle type by detecting the physical characteristics or electronic identification of the air nozzle, and automatically calls the corresponding inflation mode and air pressure preset value.

7. The intelligent control and management system for an air pump according to claim 1, characterized in that: The human-computer interaction module specifically includes: Control panel, including power button, unit switch button, setting + button, setting - button, used to receive user operation instructions; Display unit, used to display current inflation status, air pressure value, and unit information; The storage unit uses EEPROM memory to save the unit setting and pressure parameters of the user's last operation.

8. The intelligent control and management system for an air pump according to claim 7, characterized in that: The display unit adopts an LED display screen or an LCD display screen, supports multi-color display and backlight adjustment, and improves user experience.

9. The intelligent control and management system for an air pump according to claim 1, characterized in that: The intelligent management module specifically includes: Automatic start-stop unit, which automatically controls the start and stop of the motor according to the inflation status and air pressure value; The air pressure stabilization control unit ensures the stability of the air pressure during the inflation process by real-time monitoring and adjusting the air pressure; The power monitoring and low-power protection unit monitors the battery power in real time and automatically enters the low-power protection state when the power is lower than the preset value; it also includes charging management, supports external power charging, and displays the charging progress during the charging process.

10. The intelligent control and management system for an air pump according to claim 1, characterized in that: The power management module specifically includes: Power monitoring unit, real-time monitoring of battery power and display of remaining power; The power switching unit supports two power supply modes: on-board 12V and lithium battery, and automatically switches according to the power supply situation; it has overvoltage protection and undervoltage protection functions to ensure stable operation of the equipment under different power supply conditions; Low battery protection unit, when the battery power is lower than the preset value, it will automatically stop inflating and prompt the user to charge.

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