Inflator pump pressure control method and device

Abstract

The invention discloses an inflator pump pressure control method and device, which are characterized in that inflation can be performed only when the air pressure value of an inflation port of an inflator pump is greater than the real-time air pressure value in an object to be inflated, so that the inflator pump has a certain inflation speed, and the pressure value on an air path is increased synchronously along with inflation; when the air pressure value of the inflation inlet is close to the target air pressure value, the inflation speed is reduced to enable the pressure difference on the air path to be within an error allowable range, so that the accurate real-time air pressure value in the to-be-inflated object is obtained, and the time required for reaching the target air pressure value is further obtained; therefore, repeated shutdown for measurement is not needed, the target air pressure value can be quickly and accurately achieved through inflation, and the user experience is high.

Description

Technical Field

[0001] The invention relates to the technical field of air pumps, and in particular to an air pump pressure control method and device. Background Art

[0002] The air pump is also called an air pump, an air pump, or an air pump. The air pump works by the operation of the motor, and the motor is inflated based on the principle of atmospheric pressure. Air pumps are mostly used in vehicles such as cars, motorcycles, bicycles, leather balls, and rubber boats. When the air pump is pumping air, the valve of the connecting vessel is opened by the atmospheric pressure, and the gas enters the cylinder. When the air pump inflates the tire, the valve is closed by the air pressure in the cylinder, and the gas enters the tire. At present, the air pump is one of the common tools for travel. Taking cars as an example, the car air pump has the advantage of small size and occupies a small volume. It can be placed directly in the trunk of the car and is easy to carry. The car air pump also has the advantages of high power and high efficiency. When the car tire needs to be restarted, the car air pump is used to inflate the tire quickly. In addition, the air pump can also inflate props such as balls and swimming rings.

[0003] When the air pump is in use, the inflation interface is provided with a pressure sensor for obtaining the air pressure value of the air outlet of the air pump; the air outlet is connected to the object to be inflated, and the air pressure value of the inflation port is always greater than the air pressure value inside the object to be inflated during the inflation process. In order to inflate quickly, the air pump is usually required to have a larger inflation speed. However, the measurement error of the pressure sensor becomes higher and higher with the increase of the inflation speed. Therefore, in order to ensure that the inflation amount can accurately reach the target air pressure value of the object to be inflated, the air pressure value on the air path is usually required to be continuously detected. In order to avoid the influence of the inflation speed on the measurement accuracy, the existing air pump usually needs to stop and measure when pressurizing. If insufficient pressure is found, pressurize again. Such repeated pressurization has slow efficiency and poor user experience; or the inflation speed is continuously reduced and the inflation is performed in a step-by-step manner. In this way, there are still problems of inaccurate measurement and low inflation efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide an air pump pressure control method and device, aiming to solve the technical problem that the existing air pump has inaccurate air pressure measurement during inflation, resulting in slow inflation efficiency.

[0005] A first aspect of the present invention provides an air pump pressure control method, the method comprising:

[0006] Connect the item to be inflated and start the air pump to inflate at a preset inflation speed Q1, and collect the current air pressure value P1 at the inflation port of the air pump;

[0007] When the current air pressure value P1 reaches m*P2, the inflation speed of the air pump is reduced to the measured inflation speed Q2, where m is 0.5-1 and P2 is the target air pressure value in the article to be inflated;

[0008] Continue to inflate according to the measured inflation speed Q2 and obtain the real-time air pressure value Px in the to-be-inflated article, and obtain a time relationship curve between the air pressure value increment P2-Px and the preset inflation speed Q1;

[0009] The time Tx required to reach the target air pressure value P2 is obtained from the time relationship curve, and the object to be inflated is inflated at the preset inflation speed Q1, and the running time is Tx.

[0010] Further, the step of continuing to inflate according to the measured inflation speed Q2 and obtaining the real-time air pressure value Px in the article to be inflated specifically includes:

[0011] The measured inflation speed P1-Px is less than the preset inflation speed Q1, and Q2 is less than or equal to 16L / min; the object to be inflated is inflated at the measured inflation speed Q2, and the running time is Tc; and at the same time, the current air pressure value P1 of the inflation port of the inflation pump is collected at least once as the real-time air pressure value Px in the object to be inflated.

[0012] Furthermore, the connecting the article to be inflated and starting the air pump to inflate at a preset inflation speed Q1, and collecting the current air pressure value P1 of the inflation port of the air pump further comprises:

[0013] Setting a target air pressure value P2 in the article to be inflated, and obtaining a time relationship curve between an air pressure value increment P2-P1 and the preset inflation speed Q1;

[0014] The slope equation of the time relationship curve between the air pressure value increment P2-P1 and the preset inflation speed Q1 is obtained to determine the value of m.

[0015] Specifically, m is divided into a plurality of fixed values ​​corresponding to the slope equation, and a Tc time value is set corresponding to each fixed value.

[0016] Furthermore, after the preset inflation speed Q1 is used to inflate the article to be inflated for a running time of Tx, the method further includes:

[0017] Stop inflating the article to be inflated, and at the same time collect the current air pressure value P1 of the inflation port of the inflation pump to determine whether P2-P1 is within a preset error range.

[0018] Further, the time Tx required to reach the target air pressure value P2 is obtained from the time relationship curve, and the preset inflation speed Q1 is used to inflate the inflated article, and the running time is Tx; and further comprising:

[0019] When Tx is less than the preset time, the object to be inflated is inflated at the measured inflation speed Q2 for a running time of Ty; when Tx is greater than or equal to the preset time, the object to be inflated is inflated at the preset inflation speed Q1 for a running time of Tx.

[0020] Further, when the current air pressure value P1 reaches m*P2, reducing the inflation speed of the air pump to the measured inflation speed Q2 specifically includes:

[0021] By controlling the motor speed of the air pump, the inflation speed of the air pump is switched from Q1 to Q2.

[0022] A second aspect of the present invention provides an air pump pressure control device, the device comprising: a pressure sensor, arranged at the air outlet of the air pump, for measuring a current air pressure value P1 of the air outlet;

[0023] The air pump control unit, the pressure sensor is electrically connected to the air pump control unit, and includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is executed by the processor to implement the following:

[0024] Connect the item to be inflated and start the air pump to inflate at a preset inflation speed Q1, and collect the current air pressure value P1 at the inflation port of the air pump;

[0025] When the current air pressure value P1 reaches m*P2, the inflation speed of the air pump is reduced to the measured inflation speed Q2, where m is 0.5-1 and P2 is the target air pressure value in the article to be inflated;

[0026] Continue to inflate according to the measured inflation speed Q2 and obtain the real-time air pressure value Px in the to-be-inflated article, and obtain a time relationship curve between the air pressure value increment P2-Px and the preset inflation speed Q1;

[0027] The time Tx required to reach the target air pressure value P2 is obtained from the time relationship curve, and the object to be inflated is inflated at the preset inflation speed Q1, and the running time is Tx.

[0028] The air pump pressure control method and device of the embodiments of the present invention, since the air pump can only inflate when the air pressure value at the inflation port is greater than the real-time air pressure value in the to-be-inflated article, the air pump must have a certain inflation speed. As the inflation progresses, the pressure value in the air path must increase synchronously. When the air pressure value at the inflation port approaches the target air pressure value, the inflation speed is reduced so that the pressure difference in the air path is within the allowable error range, thereby obtaining an accurate real-time air pressure value in the to-be-inflated article, and further obtaining the time required to reach the target air pressure value. In this way, there is no need to repeatedly stop the machine for measurement, thereby quickly and accurately inflating to reach the target air pressure value, and the user experience is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A flow chart of the air pump pressure control method provided by an embodiment of the present invention;

[0030] Figure 2 A structural block diagram of an air pump pressure control device provided by an embodiment of the present invention;

[0031] Figure 3 A hardware structure block diagram of an air pump unit provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0032] The following is a detailed description of the implementation of the present invention in conjunction with the accompanying drawings, but they do not constitute a limitation of the present invention and are only given as examples. At the same time, the advantages of the present invention are made clearer and easier to understand through the description.

[0033] Example 1

[0034] like Figure 1 As shown, an embodiment of the present invention provides an air pump pressure control method, the method comprising:

[0035] S101, connecting the object to be inflated and starting the air pump to inflate at a preset inflation speed Q1, and collecting the current air pressure value P1 of the inflation port of the air pump;

[0036] S102, when the current air pressure value P1 reaches m*P2, reducing the inflation speed of the air pump to the measured inflation speed Q2, where m is 0.5-1, and P2 is the target air pressure value in the article to be inflated;

[0037] S103, continue to inflate according to the measured inflation speed Q2 and obtain the real-time air pressure value Px in the to-be-inflated article, and obtain a time relationship curve between the air pressure value increment P2-Px and the preset inflation speed Q1;

[0038] S104, obtaining the time Tx required to reach the target air pressure value P2 from the time relationship curve, and inflating the object to be inflated at the preset inflation speed Q1 for a running time of Tx.

[0039] The step of continuing to inflate according to the measured inflation speed Q2 and obtaining the real-time air pressure value Px in the article to be inflated specifically includes:

[0040] The measured inflation speed P1-Px is less than the preset inflation speed Q1, and Q2 is less than or equal to 16L / min; the object to be inflated is inflated at the measured inflation speed Q2, and the running time is Tc; and at the same time, the current air pressure value P1 of the inflation port of the inflation pump is collected at least once as the real-time air pressure value Px in the object to be inflated.

[0041] Normally, P1 is greater than Px, so that inflation can be normal. We know that the measurement accuracy of the pressure sensor is related to the inflation speed. After the inflation speed decreases, the P1-Px value becomes smaller and smaller, similar to a uniform process. When the inflation speed drops to Q2, P1 is approximately equal to Px, which is within the allowable error range.

[0042] Wherein, the connecting the to-be-inflated article and starting the air pump to inflate at a preset inflation speed Q1, and collecting the current air pressure value P1 of the inflation port of the air pump further comprises:

[0043] Setting a target air pressure value P2 in the article to be inflated, and obtaining a time relationship curve between an air pressure value increment P2-P1 and the preset inflation speed Q1;

[0044] The slope equation of the time relationship curve between the air pressure value increment P2-P1 and the preset inflation speed Q1 is obtained to determine the value of m.

[0045] Specifically, m is divided into a plurality of fixed values ​​corresponding to the slope equation, and a Tc time value is set corresponding to each fixed value.

[0046] m can be 0.8, 0.85, 0.9, 0.95, 1, and Tc can be 0.5s, 1s, 1.5s, 2s, or 3s. If the slope equation is steeper, it means that the air pressure increases quickly. For example, when inflating a relatively small object, you can choose 0.85*P2 to switch the inflation speed, and Tc can be selected as 0.5s, so that the Tc running time is sufficient but relatively short, avoiding the influence of the reduced gas volume caused by the improvement of the inflation speed on the time relationship curve, thereby reducing the measurement error. If the slope equation is flatter, it means that the air pressure increases slowly. For example, when inflating a relatively large object, you can choose to switch the inflation speed to P2, and Tc can also be selected as 2-3s, thereby reducing the measurement error through multiple measurements.

[0047] Wherein, the method further comprises: inflating the object to be inflated at the preset inflation speed Q1 for a running time of Tx;

[0048] Stop inflating the article to be inflated, and at the same time collect the current air pressure value P1 of the inflation port of the inflation pump to determine whether P2-P1 is within a preset error range.

[0049] Optionally, the time Tx required to reach the target air pressure value P2 is obtained from the time relationship curve, and the to-be-inflated article is inflated at the preset inflation speed Q1 for a running time of Tx; further comprising:

[0050] When Tx is less than the preset time, the object to be inflated is inflated at the measured inflation speed Q2 for a running time of Ty; when Tx is greater than or equal to the preset time, the object to be inflated is inflated at the preset inflation speed Q1 for a running time of Tx.

[0051] When the space of the inflated article is very small, the inflation speed switching plus Tc time is close to Tx; Ty is the time required for the pressure value increment P2-P1 and the time relationship curve of the measured inflation speed Q2 to reach the target pressure value P2.

[0052] Optionally, when the current air pressure value P1 reaches m*P2, reducing the inflation speed of the air pump to measure the inflation speed Q2 specifically includes:

[0053] By controlling the motor speed of the air pump, the inflation speed of the air pump is switched from Q1 to Q2.

[0054] Example 2

[0055] like Figure 2 As shown, an embodiment of the present invention further provides an air pump pressure control device, the device comprising: a pressure sensor 20, arranged at the air outlet of the air pump, for measuring the current air pressure value P1 of the air outlet;

[0056] The air pump control unit 10, the pressure sensor 20 is electrically connected to the air pump control unit 10, such as Figure 3 As shown, the air pump control unit 10 includes at least a processor 11, a memory 12 and a data bus 13. The data bus 13 is used to realize the connection and communication between the processor 11 and the memory 12. The memory 12 is a computer-readable storage medium that can store at least one computer program. These computer programs can be read, compiled and executed by the processor 11 to realize the corresponding processing flow. In this embodiment, the memory 11 is a computer-readable storage medium, in which the online bidding and quotation evaluation program is executed by the processor 11, and is implemented as follows:

[0057] Connect the item to be inflated and start the air pump to inflate at a preset inflation speed Q1, and collect the current air pressure value P1 at the inflation port of the air pump;

[0058] When the current air pressure value P1 reaches m*P2, the inflation speed of the air pump is reduced to the measured inflation speed Q2, where m is 0.5-1 and P2 is the target air pressure value in the article to be inflated;

[0059] Continue to inflate according to the measured inflation speed Q2 and obtain the real-time air pressure value Px in the to-be-inflated article, and obtain a time relationship curve between the air pressure value increment P2-Px and the preset inflation speed Q1;

[0060] The time Tx required to reach the target air pressure value P2 is obtained from the time relationship curve, and the object to be inflated is inflated at the preset inflation speed Q1, and the running time is Tx.

[0061] The air pump pressure control method and device of the embodiments of the present invention, since the air pump can only inflate when the air pressure value at the inflation port is greater than the real-time air pressure value in the to-be-inflated article, the air pump must have a certain inflation speed. As the inflation progresses, the pressure value in the air path must increase synchronously. When the air pressure value at the inflation port approaches the target air pressure value, the inflation speed is reduced so that the pressure difference in the air path is within the allowable error range, thereby obtaining an accurate real-time air pressure value in the to-be-inflated article, and further obtaining the time required to reach the target air pressure value. In this way, there is no need to repeatedly stop the machine for measurement, thereby quickly and accurately inflating to reach the target air pressure value, and the user experience is high.

[0062] The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0063] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for controlling pressure of an air pump, characterized in that: The method comprises: Connect the item to be inflated and start the air pump to inflate at a preset inflation speed Q1, and collect the current air pressure value P1 at the inflation port of the air pump; When the current air pressure value P1 reaches m*P2, the inflation speed of the air pump is reduced to the measured inflation speed Q2, where m is 0.5-1 and P2 is the target air pressure value in the article to be inflated; Continue to inflate according to the measured inflation speed Q2 and obtain the real-time air pressure value Px in the to-be-inflated article, and obtain a time relationship curve between the air pressure value increment P2-Px and the preset inflation speed Q1; The time Tx required to reach the target air pressure value P2 is obtained from the time relationship curve, and the object to be inflated is inflated at the preset inflation speed Q1, and the running time is Tx.

2. The air pump pressure control method according to claim 1, characterized in that: The step of continuing to inflate according to the measured inflation speed Q2 and obtaining the real-time air pressure value Px in the article to be inflated specifically includes: The measured inflation speed P1-Px is less than the preset inflation speed Q1, and Q2 is less than or equal to 16L / min; the object to be inflated is inflated at the measured inflation speed Q2, and the running time is Tc; and at the same time, the current air pressure value P1 of the inflation port of the inflation pump is collected at least once as the real-time air pressure value Px in the object to be inflated.

3. The air pump pressure control method according to claim 1, characterized in that: The connecting the article to be inflated and starting the air pump to inflate at a preset inflation speed Q1, and collecting the current air pressure value P1 of the inflation port of the air pump further comprises: Setting a target air pressure value P2 in the article to be inflated, and obtaining a time relationship curve between an air pressure value increment P2-P1 and the preset inflation speed Q1; The slope equation of the time relationship curve between the air pressure value increment P2-P1 and the preset inflation speed Q1 is obtained to determine the value of m.

4. The air pump pressure control method according to claim 2, characterized in that: m is divided into a plurality of fixed values ​​corresponding to the slope equation, and a Tc time value is set corresponding to each fixed value.

5. The air pump pressure control method according to claim 1, characterized in that: Inflate the to-be-inflated article at the preset inflation speed Q1 for a running time of Tx and further include: Stop inflating the article to be inflated, and at the same time collect the current air pressure value P1 of the inflation port of the inflation pump to determine whether P2-P1 is within a preset error range.

6. The air pump pressure control method according to claim 1, characterized in that: The time Tx required to reach the target air pressure value P2 is obtained from the time relationship curve, and the preset inflation speed Q1 is used to inflate the inflated article for a running time of Tx; and further comprising: When Tx is less than the preset time, the article to be inflated is inflated at the measured inflation speed Q2, and the running time is Ty; when Tx is greater than or equal to the preset time, the article to be inflated is inflated at the preset inflation speed Q1, and the running time is Tx; Ty is the time required for the time relationship curve between the air pressure value increment P2-P1 and the measured inflation speed Q2 to reach the target air pressure value P2.

7. The air pump pressure control method according to claim 1, characterized in that: When the current air pressure value P1 reaches m*P2, reducing the inflation speed of the air pump to measure the inflation speed Q2 specifically includes: By controlling the motor speed of the air pump, the inflation speed of the air pump is switched from Q1 to Q2.

8. An air pump pressure control device, characterized in that: The device comprises a pressure sensor, which is arranged at the air outlet of the air pump and is used to measure the current air pressure value P1 of the air outlet; The air pump control unit, the pressure sensor is electrically connected to the air pump control unit, and includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is executed by the processor to achieve the following: Connect the item to be inflated and start the air pump to inflate at a preset inflation speed Q1, and collect the current air pressure value P1 at the inflation port of the air pump; When the current air pressure value P1 reaches m*P2, the inflation speed of the air pump is reduced to the measured inflation speed Q2, where m is 0.5-1 and P2 is the target air pressure value in the article to be inflated; Continue to inflate according to the measured inflation speed Q2 and obtain the real-time air pressure value Px in the to-be-inflated article, and obtain a time relationship curve between the air pressure value increment P2-Px and the preset inflation speed Q1; The time Tx required to reach the target air pressure value P2 is obtained from the time relationship curve, and the object to be inflated is inflated at the preset inflation speed Q1, and the running time is Tx.

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