Milk fullness detection method of breast pump and related equipment

Abstract

The invention relates to the field of mother and baby products, and provides a milk fullness detection method of a breast pump and related equipment, and the method comprises the steps: obtaining detection data of a milk fullness detection sensor; under the condition that the detection data meets a preset condition, obtaining judgment data; judging whether the judgment data meet a real milk fullness condition or not; under the condition that it is judged that the data meet the real milk full condition, it is determined that the breast pump is in a real milk full state; and under the condition that the judgment data does not meet the real milk full condition, determining that the breast pump is in a false milk full state. Whether the breast pump is in the real milk full state or not is comprehensively judged through the detection data and the judgment data, interference of interference conditions on milk full detection can be effectively avoided, and the milk full detection precision is improved.

Description

Technical Field

[0001] The present invention relates to the field of maternal and infant products, and in particular to a method for detecting a full-milk condition of a breast pump and related equipment. Background Art

[0002] In the related art, a breast pump usually needs to be equipped with a milk full detection sensor to detect the milk full state of the breast pump. When the breast pump is full of milk, it means that the milk storage container has been or is about to be full of milk. Continuing to suck milk may cause the milk to overflow from the milk storage container, causing milk contamination and other problems.

[0003] However, when a breast pump is used, interferences such as wall hanging, liquid level tilting, and liquid level shaking often occur. Therefore, the existing milk full detection sensor is prone to erroneously identify that the breast pump is full of milk due to interferences, and the recognition accuracy is low.

[0004] Therefore, how to improve the accuracy of milk fullness detection in a breast pump is a technical problem that needs to be solved urgently. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention aims to accurately detect the milk full state of a breast pump and improve the accuracy of milk full detection.

[0006] In a first aspect, an embodiment of the present application provides a method for detecting a breast pump that is full of milk, the method comprising: obtaining detection data of a milk full detection sensor; when the detection data satisfies a preset condition, obtaining judgment data; judging whether the judgment data satisfies a true milk full condition; when the judgment data satisfies the true milk full condition, determining that the breast pump is in a true milk full state; when the judgment data does not satisfy the true milk full condition, determining that the breast pump is in a false milk full state.

[0007] In the above scheme, when the detection value is greater than the preset detection value, it is determined whether the true milk full condition is met by judging the data, which can prevent the influence of external interference on the milk full detection and ensure the detection accuracy.

[0008] In a possible implementation manner of the first aspect, obtaining detection data of a milk full detection sensor includes: obtaining a detection value of the milk full detection sensor.

[0009] In a possible implementation manner of the first aspect, the milk full detection sensor includes at least any one of the following sensors: a differential capacitive sensor assembly; a pressure sensor; an ultrasonic sensor; or a photoelectric sensor.

[0010] In a possible implementation of the first aspect, the milk full detection sensor is a differential capacitive sensor assembly, which includes a parallel capacitor group and a control circuit; the parallel capacitor group includes a first electrode and a second electrode that are relatively arranged; the control circuit is used to charge the parallel capacitor group and detect the capacitance value of the parallel capacitor group.

[0011] In the above implementation, the differential capacitive sensor assembly can quantitatively detect the liquid level, has good anti-interference effect, and can be arranged on the outer surface of the host or milk storage container shell that does not contact the milk, thereby realizing non-contact measurement.

[0012] In a possible implementation of the first aspect, the detection value is a capacitance detection value, and when the detection data meets a preset condition, obtaining the judgment data includes: when the capacitance detection value is greater than a preset capacitance detection value, continuously obtaining subsequent capacitance detection values; judging whether the judgment data meets a true milk full condition, including: subsequent capacitance detection values ​​continue to rise or remain within a preset time, and it is judged that the true milk full condition is met; subsequent capacitance detection values ​​show a non-continuous upward trend within the preset time, and it is judged that the true milk full condition is not met.

[0013] In the above implementation, when the detection value is greater than the preset detection value, whether the milk is really full is judged by the trend of the subsequent detection value, which can eliminate misjudgment caused by interference such as tilting of the milk storage container, shaking of the liquid surface, and milk hanging on the wall, thereby improving detection accuracy.

[0014] In a possible implementation manner of the first aspect, the preset time ranges from 0.5 s to 3 s.

[0015] In a possible implementation manner of the first aspect, the non-persistent upward trend includes one of an upward followed by a downward trend or a fluctuating trend.

[0016] In a possible implementation manner of the first aspect, acquiring detection data of a milk full sensor includes: acquiring a detection level signal of the milk full detection sensor.

[0017] In a possible implementation manner of the first aspect, the milk full detection sensor includes any one of the following: an inductive capacitance sensor; a photoelectric sensor.

[0018] In a possible implementation manner of the first aspect, when the detection data satisfies a preset condition, obtaining the judgment data includes: when the detection level signal at the first moment is a preset level signal, obtaining multiple detection level signals from the first moment to the second moment; wherein the second moment is located after the first moment; judging whether the judgment data satisfies the true milk full condition, including: when the multiple detection level signals are all preset level signals, judging that the true milk full condition is met; when at least one of the multiple detection level signals is not the preset level signal, judging that the true milk full condition is not met.

[0019] In the above implementation, when the detection level signal is a preset level signal, multiple subsequent detection levels are used to determine whether the milk is really full, which can eliminate misjudgments caused by interference such as tilting of the milk storage container, shaking of the liquid surface, and milk hanging on the wall, thereby improving detection accuracy.

[0020] In a possible implementation manner of the first aspect, when the detection data meets the preset conditions, obtaining the judgment data includes: when the detection data meets the preset conditions, obtaining the inclination angle detected by the angle sensor; judging whether the judgment data meets the true milk full condition, including: judging whether the breast pump is in a tilted state according to the inclination angle; when the breast pump is not in a tilted state, judging that the true milk full condition is met; when the breast pump is in a tilted state, judging that the true milk full condition is not met.

[0021] In the above implementation, false milk fullness caused by the tilted liquid level when the breast pump is in a tilted state can be identified.

[0022] In a possible implementation manner of the first aspect, when the detection data meets the preset conditions, obtaining the judgment data includes: when the detection data meets the preset conditions, obtaining the vibration amplitude detected by the vibration sensor; judging whether the judgment data meets the true milk full condition, including: judging whether the breast pump is in a shaking state according to the vibration amplitude; when the breast pump is not in a shaking state, judging that the true milk full condition is met; when the breast pump is in a shaking state, judging that the true milk full condition is not met.

[0023] In the above implementation, false milk fullness caused by the shaking of the liquid surface when the breast pump is in a shaking state can be identified.

[0024] In a possible implementation manner of the first aspect, the method further includes: when it is determined that the breast pump is in a truly full milk state, executing a preset operation; wherein the preset operation includes any one or more of the following: controlling a prompt module in the breast pump to generate milk full prompt information, the prompt module including at least one of a display module, a sound module, and a vibration module; sending indication information to an electronic device that communicates with the breast pump, the indication information being used to instruct a display module of the electronic device to display the milk full prompt information; and controlling the breast pump to stop sucking milk.

[0025] In the above implementation, the breast pump can be controlled to perform a preset operation when the milk is full, thereby preventing milk from overflowing or promptly reminding the user to save the milk. In a possible implementation manner of the first aspect, the method further includes: when it is determined that the breast pump is in a true full milk state, determining the amount of milk in the breast pump according to the full milk position and a mapping relationship; wherein the mapping relationship is used to indicate a correspondence between the full milk position and the amount of milk.

[0026] In a second aspect, an embodiment of the present application provides a milk full detection device for a breast pump, the device comprising: a first acquisition unit, used to acquire detection data of an electrode-type capacitive sensor assembly; a second acquisition unit, used to acquire judgment data when the detection data meets a preset condition; a judgment unit, used to judge whether the judgment data meets a true milk full condition; a first determination unit, used to determine that the breast pump is in a true milk full state when the judgment data meets the true milk full condition; and a second determination unit, used to determine that the breast pump is in a false milk full state when the judgment data does not meet the true milk full condition.

[0027] In a third aspect, an embodiment of the present application provides a breast pump, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the milk full detection method of the breast pump as in the first aspect and any possible implementation manner of the first aspect.

[0028] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores an executable program, and the executable program is executed by a processor to implement a method for detecting a milk fullness of a breast pump as in the first aspect and any possible implementation of the first aspect. In a fifth aspect, an embodiment of the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the method for detecting a breast pump full of milk in the first aspect and any possible implementation of the first aspect.

[0029] Among them, the beneficial effects of the second aspect, the third aspect, the fourth aspect and the fifth aspect can refer to the first aspect and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a first stereoscopic view of the breast pump provided in an embodiment of the present application.

[0031] Figure 2 This is a first exploded view of the breast pump provided in the embodiment of the present application.

[0032] Figure 3This is a second exploded view of the breast pump provided in the embodiment of the present application.

[0033] Figure 4 Schematic diagram of a parallel plate capacitor provided in an embodiment of the present application.

[0034] Figure 5 It is a detection principle diagram of the differential capacitive sensor assembly provided in an embodiment of the present application.

[0035] Figure 6 It is a schematic diagram of the liquid level detection principle of the differential capacitive sensor assembly provided in an embodiment of the present application.

[0036] Figure 7 It is a schematic diagram of the arrangement of a differential capacitive sensor assembly on a host housing provided in an embodiment of the present application.

[0037] Figure 8 It is a flow chart of a method for judging the milk full state of a breast pump provided in an embodiment of the present application.

[0038] Fig. 9 It is a structural schematic diagram of a device for judging the milk full state of a breast pump provided in an embodiment of the present application.

[0039] Fig.10 It is a schematic diagram of the structure of a breast pump provided in an embodiment of the present application.

[0040] Fig.11 It is a structural block diagram of a computer-readable storage medium provided in an embodiment of the present application. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] See also Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 is a first stereoscopic view of a breast pump provided by an embodiment of the present application, Figure 2 is a first exploded view of the breast pump provided by an embodiment of the present application, Figure 3 This is a second exploded view of the breast pump provided in the embodiment of the present application.

[0044] like Figures 1 to 3 As shown, the breast pump 1 comprises a breast shield 10 , a milk storage container 20 and a host 30 .

[0045] The breast shield 10 is used to cover the human breast and fit the breast. The breast shield 10 is a trumpet-shaped flange for fitting the breast, and the milk storage container 20 includes a nipple receiving portion 22 for receiving the nipple. In some cases, the nipple receiving portion 22 can also be provided in the breast shield 10.

[0046] The milk storage container 20 is used to receive and store breast milk collected by the breast shield 10 , and the milk storage container 20 is in communication with the breast shield 10 .

[0047] Optionally, the milk storage container 20 includes a milk cap, a milk bowl, a milk bottle, etc., which is not limited in the present application.

[0048] The host 30 is also provided with a negative pressure mechanism, which can directly or indirectly apply negative pressure to the breast shield 10 to suck breast milk into the milk storage container 20 .

[0049] Negative pressure mechanisms include, but are not limited to, piezoelectric pumps, diaphragm pumps, hydraulic pumps, mechanical pumps, and the like.

[0050] Optionally, the host 30 may also include one or more components such as a power supply module, a negative pressure air circuit, a control circuit board, and a solenoid valve.

[0051] The energy supply module is used to provide energy to the negative pressure mechanism to support the operation of the negative pressure mechanism. Specifically, the energy supply module can be a storage battery, a dry cell, or can be directly connected to an external power source through a power cord.

[0052] The host 30 is further provided with a mounting hole 32 , through which the breast shield 10 is inserted into the host 30 and is liquid-connected to the milk storage container 20 . The breast milk sucked out by the breast shield 10 flows into the one-way valve assembly 24 and then flows into the milk storage container 20 .

[0053] The milk storage container 20 comprises a milk storage container shell 21 , a nipple channel 22 , a negative pressure cabin 23 , a one-way valve assembly 24 , a diaphragm cover 25 , an air hole 26 , and a milk pouring port 27 .

[0054] The milk storage container housing 21 includes a first shell 211 and a second shell 212, and the second shell 212 is attached to or close to the host 30. The first shell 211 and the second shell 212 can be integrally formed, or can be detachably mounted. The mounting edges of the first shell 211 and the second shell 212 are provided with sealing rings or other sealing mechanisms to ensure that milk does not leak from the mounting edges.

[0055] The negative pressure chamber 23 includes a diaphragm (not shown in the figure), and the diaphragm cover 25 is fixedly installed on the negative pressure chamber 23 and seals the diaphragm. The diaphragm cover 25 is also provided with an air hole 26. The host 30 is also provided with a negative pressure socket 34, and the negative pressure socket 34 is inserted into the air hole 26. Therefore, the host 30 indirectly applies negative pressure to the negative pressure chamber 23 through the diaphragm, so that the user produces milk and it is collected by the breast shield 10.

[0056] The milk collected by the breast shield 10 enters the space in the milk storage container through the one-way valve assembly 24. When the breast pump 1 is working, it will cycle through the milk suction-air intake process. When the breast pump 1 is working to suck milk, the valve of the one-way valve in the one-way valve assembly 24 is closed. When the breast pump 1 is working to intake air, the valve of the one-way valve in the one-way valve assembly 24 is opened.

[0057] Optionally, the portion of the main body 30 shell that fits and / or is close to the milk storage container is the main body housing 31, and the main body housing 31 is mounted on the outer side of the milk storage container housing 21 or at least partially contacts the outer side of the milk storage container housing 21. Preferably, the main body housing 31 includes an inner side that forms an internal receiving space and an outer side opposite to the inner side; the capacitive sensor assembly is arranged on the inner side of the main body housing 31 to better protect the sensor.

[0058] The above content introduces the structure of a breast pump, but the above structural example is only for a clearer description of the present application, and does not mean that the present solution can only be applied to Figures 1 to 3 In the breast pump shown, for example, the breast pump may also be of a type in which the main unit is installed above a milk storage container, or of a type in which the main unit is connected to a negative pressure hatch via a three-way connector.

[0059] The capacitive sensor assembly is introduced below. The capacitive sensor assembly in the present application includes one of an inductive capacitive sensor assembly and a differential capacitive sensor assembly.

[0060] Among them, the inductive capacitive sensor component can only output high-level signals and low-level signals. The high-level signal reflects that the capacitance change is greater than the preset threshold, and it is considered that the liquid level has reached the corresponding position of the preset milk full value. The low-level signal reflects that the capacitance change is less than the preset threshold, and it is considered that the liquid level has not reached the corresponding position of the preset milk full value.

[0061] For example, an inductive capacitive sensor component is set at a position corresponding to a preset milk full value of a milk storage container. If the inductive capacitive sensor component outputs a high-level signal, it is considered that the liquid level of the milk storage container has reached the position corresponding to the preset milk full value. If the inductive capacitive sensor component outputs a low-level signal, it is considered that the liquid level of the milk storage container has not reached the position corresponding to the preset milk full value.

[0062] However, when the milk storage container is stuck to the wall, which means that the milk "sticks" to the container wall due to surface tension, if the milk happens to be completely or partially "stuck" in the detection area of ​​the inductive capacitive sensor component, it is very likely that the inductive capacitive sensor component will erroneously output a high-level signal, resulting in an erroneous milk full detection.

[0063] For another example, when the liquid level in the milk storage container is tilted, if the milk covers the detection area of ​​the inductive capacitive sensor assembly, the detection value of the inductive capacitive sensor assembly may erroneously output a high-level signal, resulting in an erroneous milk full detection.

[0064] Therefore, the inductive capacitive sensor assembly is easily affected by milk sticking to the wall, liquid surface shaking, liquid surface tilting, and human body contact or other interfering contact.

[0065] Because inductive capacitive sensor components are used to detect self-capacitance, which is the capacitance between the electrode of the capacitive sensor and the ground, this type of sensor does not require two plates, but relies on the change in capacitance generated when the target object approaches the sensor for detection.

[0066] Therefore, in the present application, a differential capacitive sensor assembly can also be used to detect whether the milk in the milk storage container has reached a position corresponding to a preset milk full value, that is, to detect whether the milk storage container is full of milk.

[0067] First, let's introduce the basic principle of parallel plate capacitors. Parallel plate capacitors are the basis for building capacitive sensors. Figure 4 , Figure 4 Schematic diagram of a parallel plate capacitor provided in an embodiment of the present application.

[0068] like Figure 4 As shown, the first electrode and the second electrode are metal conductors parallel to each other, also known as plates or electrodes. There is a uniform electric field distribution in the part between the two electrodes. Due to the edge effect, the electric field lines at the edge of the capacitor are curved and divergent.

[0069] The capacitance of a parallel plate capacitor is calculated as follows:

[0070] in, is the dielectric constant of the material between the plates, S is the area facing the two electrodes of the capacitor, is the dielectric constant of free space (8.85 x F / m), d is the distance between the two electrodes of the capacitor.

[0071] Figure 4 Here S is equal to W times L.

[0072] Figure 5-6 This is an embodiment of the present application, which is the basic principle of differential capacitance detection. This embodiment uses a differential capacitance sensor assembly as a sensor in a breast pump for detecting the state parameters of a milk storage container. The differential capacitance sensor assembly includes a detection electrode assembly, and the detection electrode assembly includes a capacitor composed of two electrodes parallel to each other and oppositely arranged. The differential capacitance sensor assembly is used to detect the mutual capacitance between the two electrodes of the capacitor, and its output result is no longer a high or low level signal, but a capacitance change value between the two electrodes or a digital signal converted from the capacitance change value.

[0073] For the sake of convenience, the capacitor formed by two electrodes arranged parallel to each other and opposite to each other in the differential capacitance sensor assembly is called a parallel capacitor group. In a possible implementation, the parallel capacitor group is Figure 6 The standard parallel plate capacitor shown, Figure 6 The parallel capacitor group in the embodiment includes a first electrode 1000 and a second electrode 2000, and the facing planes of the two electrodes are completely aligned. In another possible implementation, the facing planes of the two electrodes of the parallel capacitor group are only partially aligned, and parts of the first electrode and the second electrode are staggered.

[0074] Furthermore, the differential capacitance sensor assembly in the present application includes not only a parallel capacitance group, but also a control circuit connected to the parallel capacitance group, see Figure 5 The control circuit is used to charge the parallel capacitor group and collect the charge on the parallel capacitor group after a preset time, and determine the capacitance value of the parallel capacitor group according to the charge change speed and / or charge change amount.

[0075] The control circuit includes a conversion unit, which includes an excitation module, a sampling module and a conversion module. The excitation module generates a charging signal for charging the differential capacitance sensor assembly, and the charge on the differential capacitance sensor assembly is transmitted to the conversion module through the sampling module, and the conversion module converts the analog voltage into a digital signal. The conversion module is connected to the processing unit, and the processing unit is used to calculate the state parameter of the milk storage container corresponding to the differential capacitance sensor assembly according to the digital signal.

[0076] Optionally, the conversion unit is a capacitance-to-digital converter, and optionally, the conversion module is an analog-to-digital converter (ADC).

[0077] The following is a further introduction to the conversion unit. Please continue to refer to Figure 5 , Figure 5 is a detection principle diagram of a differential capacitive sensor assembly provided in an embodiment of the present application. Figure 5 As shown, the detection electrode assembly is connected to the conversion unit. Figure 5 The sampling module in the control circuit includes a switch capacitor circuit and a sample-and-hold circuit.

[0078] The excitation module is used to generate an excitation signal, and the excitation signal is used to charge the parallel capacitor group in the detection electrode assembly. In some cases, the excitation signal is generated by an oscillator in the excitation module. In other cases, the excitation signal is generated by a clock signal received by the excitation module. This application is not limited.

[0079] The switched capacitor circuit is used to close the switch at the appropriate time to transfer the charge on the parallel capacitor group to the input of the ADC.

[0080] The sample-and-hold circuit is used to keep the voltage on the parallel capacitor group stable before the conversion module performs conversion, ensuring that the analog-to-digital converter reads a stable voltage value during the conversion process.

[0081] The conversion module is used to convert the analog voltage into a digital signal and input the digital signal into the processing unit ( Figure 5 In some cases, the conversion module may also perform digital filtering during the conversion process to improve conversion accuracy.

[0082] The processing unit is used to determine the state parameter of the milk storage container corresponding to the differential capacitive sensor component according to the digital signal and the preset mapping relationship.

[0083] The structure of the control circuit described above is for illustration only. In some embodiments, the control circuit may also include more or fewer components than shown in the figure, or combine certain components, or split certain components, or arrange the components differently. The components shown in the figure may be implemented in hardware, software, or a combination of software and hardware. For example, some or all of the functions of the conversion unit may be integrated into the processing unit to save the setting space, or a processing unit may be added to the conversion unit, which is not limited by the present application.

[0084] An implementation of a differential capacitive sensor assembly for detecting liquid level will be described below.

[0085] See also Figure 6 , Figure 6 It is a schematic diagram of the liquid level detection principle of the differential capacitive sensor assembly provided in an embodiment of the present application. Figure 6 The control circuit is not shown.

[0086] like Figure 6As shown, Figure 6 The electric field includes straight electric field lines from the plane facing the first electrode 1000 to the plane facing the second electrode 2000, and also includes curved electric field lines from the side of the first electrode 1000 to the side of the second electrode 2000. The curved electric field lines pass through the liquid storage space of the container. Because the dielectric constant of the liquid is much larger than the dielectric constant of the air, as the liquid level rises, the dielectric constant between the two electrodes gradually increases, thereby increasing the capacitance value of the parallel capacitor group.

[0087] Understandably, Figure 6 Only part of the electric field lines of the parallel capacitor group are illustrated, and the differential capacitance sensor assembly is used to detect whether the liquid level reaches the position corresponding to the preset milk full value, that is, to detect whether the liquid level reaches the position corresponding to the preset milk full value.

[0088] Figure 6 The capacitance change of the differential capacitance sensor assembly is proportional to the change of the liquid level, so after the capacitance change is converted into a specific digital signal change, the specific change of the liquid level can be calculated based on the digital signal change. However, the capacitance change of the inductive capacitance sensor assembly is not proportional to the change of the liquid level, and the processing unit can only determine whether the liquid level has reached the corresponding height of the inductive capacitance sensor assembly through the high-level signal or low-level signal output by the inductive capacitance sensor assembly.

[0089] Optionally, a shielding layer 3000 is further provided on the side of the first electrode and the second electrode away from the container to reduce external interference. The first electrode and the second electrode are defined to detect the liquid level of the container through the electric field lines of the first side surface. The above situation can also be understood as a sensor setting layer that blocks the electric field lines of the second side surface is provided near the second side surface opposite to the first side surface, thereby reducing external interference.

[0090] Figure 6 Where d1 is the distance between two opposite planes facing the first electrode and the second electrode, d2 is the distance between the first electrode and the second electrode and the liquid storage space of the container, and the distance d1 between two opposite planes facing the first electrode and the second electrode of the parallel capacitor group is called the spacing of the differential capacitance sensor assembly. The spacing d1 of the parallel capacitance group is proportional to its detection distance. In order to ensure that the differential capacitance sensor assembly can detect the change in the liquid level height of the liquid storage space, it is necessary to ensure that d1 is greater than or equal to d2.

[0091] For example, assuming Figure 6 The maximum detection distance of the parallel capacitor group is d2. When the container is far away from the differential capacitor sensor assembly, so that the distance between the container and the differential capacitor sensor assembly is greater than d2, the spacing d1 can be increased to increase the detection range of the parallel capacitor group.

[0092] The milk full detection sensor in the present application can be set in any of the following setting areas: 1. The second shell 212 does not contact the outer side of the milk.

[0093] 2. The first shell 211 does not contact the outer side of the milk.

[0094] 3. The main unit housing 31 in the main unit 30 is close to the outer side of the milk storage container 20 or away from the inner side of the milk storage container 20 .

[0095] Among them, the milk full detection sensor is used to detect whether the milk in the milk storage container has reached the corresponding position of the preset milk full value. One type of milk full detection sensor is used to output a detection level signal, for example, when the inductive capacitance sensor component outputs a high level signal, it is considered that the milk has reached the corresponding position. One type of milk full detection sensor is used to output a detection value, for example, when the capacitance detection value output by the differential capacitance sensor component reaches the preset capacitance detection value, it is considered that the milk has reached the corresponding position.

[0096] The preset milk full value can reflect the situation that the milk storage container is completely filled, or it can be a preset threshold close to the milk full state. More preferably, it is a certain distance from the complete milk full state to reserve the milk inertia to cause milk overflow, or other reasonable threshold settings close to the milk full state. The non-milk full situation refers to the amount of milk stored in the milk storage container not reaching the preset milk full value. The specific value of the preset milk full value can be set as needed, and this application does not limit it.

[0097] Please refer to Figure 7 , Figure 7 It is a schematic diagram of the arrangement of a differential capacitive sensor assembly on a host housing provided in an embodiment of the present application.

[0098] It should be noted that Figure 7 The specific arrangement of the parallel capacitor group in the differential capacitive sensor assembly is only illustrated, and the control circuit is not illustrated. However, this does not mean that the differential capacitive sensor assembly does not need a control circuit, nor does it mean that the control circuit is not provided in the drawings of this application. The drawings of this application are only examples and should not constitute any limitation on the embodiments of this application.

[0099] For ease of explanation, Figure 7 In the figure, the milk pouring port 27 in the milk storage container 20 is projected into the main body housing 31. It can be understood that the milk pouring port 27 refers to the milk outlet in the milk storage container for the user to pour out.

[0100] For ease of explanation, Figure 7 The dotted line in the figure indicates the direction in which the milk level rises when the breast pump is worn correctly, that is, the X direction in the figure.

[0101] and Figure 7 The dashed line and the letter A indicate Figure 7 The corresponding position of the preset milk full value in Figure 7 The corresponding position of the preset milk full value shown in the figure is only an example, and the corresponding position of the preset milk full value can be set at a higher or lower position in the rising direction of the milk liquid level.

[0102] For the sake of convenience, the corresponding position of the preset milk full value will be referred to as the milk full position below.

[0103] In the rising direction of the milk in the milk storage container, the height of the bottom of the first electrode and the second electrode is lower than or equal to the height of the corresponding position of the preset milk full value. The above implementation method can detect in advance that the liquid level is close to the milk full position, thereby eliminating interference such as liquid level shaking through judgment conditions such as the continuous rise of the detection value, thereby improving the accuracy of milk full position detection.

[0104] Wherein, at least part of the electric field lines between the first electrode and the second electrode pass through the milk full position.

[0105] Further, Figure 7 In the rising direction of the milk in the milk storage container, the milk full position is set below the milk pouring port 27 of the milk storage container, so that there is a certain distance between the milk full position and the milk pouring port 27. After confirming that the milk is full, even if a small amount of milk is still sucked out of the breast shield and flows into the milk storage container, milk will not overflow.

[0106] Furthermore, in order to prevent erroneous recognition that the liquid level has reached the milk full position due to the inclination of the liquid level, in a possible implementation, the breast pump further includes an angle sensor for measuring the inclination angle of the breast pump.

[0107] Furthermore, in order to prevent erroneous recognition that the liquid level has reached the full milk position due to liquid level shaking, in a possible implementation, the breast pump further includes a vibration sensor for measuring the vibration amplitude of the breast pump.

[0108] Understandably, Figure 7 The differential capacitive sensor assembly in the apparatus can be replaced by any one of an ultrasonic sensor, a photoelectric sensor, and an inductive capacitive sensor, and this application does not limit this. The pressure sensor can be arranged at the bottom of the milk storage container, or on the base of the host for mounting the milk storage container, and this application does not limit this.

[0109] In combination with the structure of any of the above embodiments, the present application also proposes a method for determining the full milk state of a breast pump. Figure 8 , Figure 8 1 is a flow chart of a method for determining the full milk state of a breast pump provided by an embodiment of the present application. Figure 8 As shown, the method 100 includes: steps 110 to 150.

[0110] Step 110: Acquire detection data of the milk full detection sensor.

[0111] Among them, one type of milk full detection sensor outputs a detection value, and this type of milk full detection sensor includes a differential capacitance sensor assembly; a pressure sensor; an ultrasonic sensor; and a photoelectric sensor. For example, the capacitance detection value output by the differential capacitance sensor assembly, the pressure value output by the pressure sensor, the distance value output by the ultrasonic sensor, and the distance value output by the photoelectric sensor.

[0112] Among them, another type of milk full detection sensor outputs a detection level signal, that is, a high level signal or a low level signal. This type of milk full detection sensor includes an inductive capacitive sensor component; a photoelectric sensor. For example, the inductive capacitive sensor component outputs a high level signal when its internal capacitance is greater than a preset capacitance value, otherwise it outputs a low level signal. The photoelectric sensor outputs a high level signal when it receives reflected light or the intensity of the received reflected light is greater than the preset light intensity, otherwise it outputs a low level signal.

[0113] Step 120: When the detection data meets the preset conditions, obtain the judgment data.

[0114] Specifically, if the milk full detection sensor outputs a detection value, then: In one possible implementation, the preset condition is that the detection value is greater than the preset milk full value. Because external interference must be eliminated to prevent false recognition of milk fullness, after the detection value obtained by the capacitive sensor component is greater than the preset milk full value, it is not directly considered that the milk full position has been reached, but further judgment data is obtained to verify whether the milk is really full.

[0115] In another possible implementation, the preset detection value may be smaller than the above-mentioned preset milk full value.

[0116] The preset milk full value includes one of a preset capacitance detection value, a preset distance detection value, and a preset pressure detection value, which is determined by the type of the milk full detection sensor, and is not limited in this application. As for the specific value of the preset milk full value, different structures of breast pumps and different milk full positions will correspond to different preset milk full values, and this application is not limited thereto.

[0117] Specifically, if the milk full detection sensor component outputs a detection level signal, then: The preset condition includes that the detection level signal is a high level signal.

[0118] Furthermore, in step 120, it is determined that the data contains multiple optional data.

[0119] In a possible implementation, the milk fullness detection sensor is a differential capacitance sensor assembly, and the detection value is a capacitance detection value. In this case, step 120 includes the steps of: when the capacitance detection value is greater than a preset capacitance detection value, continuously acquiring subsequent capacitance detection values. In this case, the judgment data is the subsequent capacitance detection value.

[0120] In another possible implementation, the detection data is a detection level signal, and step 120 includes the steps of: when the detection level signal at the first moment is a preset level signal, acquiring multiple detection level signals from the first moment to the second moment; wherein the second moment is after the first moment. In this case, the judgment data is multiple detection level signals from the first moment to the second moment.

[0121] In yet another possible implementation manner, the detection data is a vibration amplitude detected by a vibration sensor.

[0122] In yet another possible implementation, the detection data is a tilt angle detected by an angle sensor.

[0123] Step 130: Determine whether the data meets the true milk full condition.

[0124] Among them, satisfying the true milk full condition indicates that the detection value of the capacitive sensor assembly is credible, and the liquid level has reached the milk full position. Not satisfying the true milk full condition indicates that the detection value of the capacitive sensor assembly is unreliable, the liquid level has not reached the milk full position, or the liquid level temporarily exceeds the milk full position due to external interference.

[0125] In one possible implementation, if the judgment data is a subsequent capacitance detection value, step 130 includes the steps: if the subsequent capacitance detection value continues to rise or remain within a preset time, it is judged that the true milk full condition is met; if the subsequent capacitance detection value shows a non-continuous upward trend within the preset time, it is judged that the true milk full condition is not met.

[0126] The non-continuous rising trend includes a rising and then falling trend or a fluctuating trend. In the fluctuating trend, the detection value repeatedly switches between an rising state and a falling state.

[0127] The preset time ranges from 0.5s to 3s. However, the preset time is only used as an example, and the upper limit of the time range is related to the distance between the full milk position and the milk pouring port, because in the process of judging whether the milk is really full, the milk is still continuously entering the milk storage container. Therefore, if the distance between the full milk position and the milk pouring port is small, the upper limit of the judgment needs to be shortened accordingly, and if the distance between the full milk position and the milk pouring port is large, the upper limit of the judgment can be extended accordingly. Therefore, the above-mentioned preset time range should not be understood as a limitation to the present application.

[0128] The above implementation method can effectively eliminate the interference of liquid level shaking and liquid level tilt on milk full detection, because when the liquid level shakes and the liquid level tilts, the milk volume will generally decrease after exceeding the preset milk full value, and thus be detected as false milk full by the above detection method.

[0129] In another possible implementation, the judgment data is a plurality of detection level signals from the first moment to the second moment. In this case, step 130 includes the steps of: when the plurality of detection level signals are all preset level signals, judging that the true milk full condition is satisfied; and when at least one of the plurality of detection level signals is not the preset level signal, judging that the true milk full condition is not satisfied.

[0130] Preferably, the preset level signal is a high level signal.

[0131] The above implementation method can effectively eliminate the interference of liquid level shaking and liquid level tilt on milk full detection, because when the liquid level shakes and the liquid level tilts, the milk volume will generally decrease after it is greater than the preset milk full value, so that the detection level signal is a low level signal, and is detected as false milk full by the above detection method.

[0132] In another possible implementation, when the judgment data is the tilt angle detected by the angle sensor, step 130 includes the steps of: judging whether the breast pump is in a tilted state according to the tilt angle; judging that the true milk full condition is met when the breast pump is not in a tilted state; and judging that the true milk full condition is not met when the breast pump is in a tilted state.

[0133] Optionally, a preset angle is set in advance, and when the tilt angle is greater than or equal to the preset angle, it is determined that the breast pump is in a tilted state. When the tilt angle is less than the preset angle, it is determined that the breast pump is not in a tilted state.

[0134] The above solution can eliminate the interference of liquid level tilt on the milk full detection of the breast pump.

[0135] In another possible implementation, when the judgment data is the vibration amplitude detected by the vibration sensor, step 130 includes the steps of: judging whether the breast pump is in a shaking state according to the vibration amplitude; judging that the true milk full condition is met when the breast pump is not in a shaking state; and judging that the true milk full condition is not met when the breast pump is in a shaking state.

[0136] Optionally, a preset vibration amplitude is set in advance, and when the vibration amplitude is greater than or equal to the preset vibration amplitude, it is determined that the breast pump is in a shaking state. When the vibration amplitude is less than the preset vibration amplitude, it is determined that the breast pump is not in a shaking state.

[0137] The above solution can eliminate the interference of liquid surface shaking on the milk fullness detection of the breast pump.

[0138] Step 140: When it is determined that the data meets the true milk full condition, determine that the breast pump is in the true milk full state.

[0139] When it is determined that the breast pump is truly full of milk, the breast pump can be controlled to perform corresponding operations, thereby achieving a series of functions such as preventing milk overflow and reminding the user.

[0140] Therefore, the method 100 provided in the present application further includes the step of: executing a preset operation when it is determined that the breast pump is in a truly full milk state.

[0141] The preset operations include one or more of the following: (1) Controlling a prompt module in the breast pump to generate milk full prompt information, wherein the prompt module includes at least one of a display module, a sound module, and a vibration module.

[0142] As an example, the display module includes a display screen on a breast pump, the sound module includes one or more of a buzzer and a speaker on the breast pump, and the vibration module includes a massage component on the breast pump.

[0143] (2) Sending instruction information to a breast pump communicating with the breast pump, where the instruction information is used to instruct a display module of the breast pump to display a milk full reminder message.

[0144] In one possible implementation, the breast pump can communicate with the breast pump via a data line. In another possible implementation, the breast pump communicates with the breast pump via a WIFI module or a Bluetooth module or other wireless communication modules.

[0145] Wherein, the display module of the breast pump includes a display screen of the breast pump.

[0146] (3) Control the breast pump to stop sucking milk.

[0147] Among them, stopping milk pumping can prevent the liquid level from continuing to rise and causing milk to overflow from the milk pouring port, contaminating the milk and the breast pump or causing damage to the breast pump equipment.

[0148] Furthermore, when it is determined that the breast pump is in a truly full milk state, the amount of milk in the breast pump can be calculated. In this case, the method 100 provided in the present application also includes the step of: when it is determined that the breast pump is in a truly full milk state, determining the amount of milk in the breast pump according to the milk full position and a mapping relationship; wherein the mapping relationship is used to indicate the correspondence between the milk full position and the amount of milk.

[0149] The correspondence between the full milk position and the amount of milk can be calibrated at the factory and stored in the memory of the breast pump or in a server communicating with the breast pump, and this application does not impose any limitation thereto.

[0150] Step 150: When it is determined that the data does not satisfy the true milk full condition, the breast pump is determined to be in a false milk full state.

[0151] Among them, when it is determined that the breast pump is in a false full milk state, the indicated liquid level has not reached the milk full position, and milk can be pumped normally, or the milk pumping force or frequency can be temporarily reduced to reduce the amount of milk pumped per unit time, and wait for the breast pump to return to an undisturbed state.

[0152] See also Fig. 9 , Fig. 9 Schematic diagram of a device for determining the milk fullness of a breast pump provided in an embodiment of the present application. The device is applied to a breast pump in any of the above embodiments, such as Fig. 9 As shown, the control device 200 includes a first acquisition unit 210 , a second acquisition unit 220 , a judgment unit 230 , a first determination unit 240 , and a second determination unit 250 .

[0153] The first acquisition unit 210 is used to acquire detection data of the milk full detection sensor.

[0154] The second acquisition unit 220 is used to acquire the judgment data when the detection data meets the preset conditions.

[0155] The judgment unit 230 is used to judge whether the judgment data meets the real milk full condition.

[0156] The first determination unit 240 is configured to determine that the breast pump is in a true milk full state when the judgment data satisfies a true milk full condition.

[0157] The second determination unit 250 is configured to determine that the breast pump is in a false milk full state when the judgment data does not satisfy a true milk full condition.

[0158] The above-mentioned unit can also execute the remaining steps of the method for determining the milk full state of a breast pump in any embodiment of the specification, or the control device is also provided with other units to execute the remaining steps of the method for determining the milk full state of a breast pump in any embodiment of the specification, which will not be repeated here.

[0159] Please refer to Fig.10 , Fig.10 Schematic diagram of the structure of a breast pump provided by an embodiment of the present application. Fig.10 As shown, the breast pump 300 includes: one or more processors 310 and a memory 320, Fig.10 A processor 310 is taken as an example.

[0160] In some implementations, the processor 310 and the memory 320 may be connected via a bus or other means. Fig.10 The example of connecting through bus is taken in the following.

[0161] In some embodiments, the processor 310 is used to obtain detection data of a milk full detection sensor; when the detection data meets a preset condition, obtain judgment data; judge whether the judgment data meets a true milk full condition; when the judgment data meets the true milk full condition, determine that the breast pump is in a true milk full state; when the judgment data does not meet the true milk full condition, determine that the breast pump is in a false milk full state.

[0162] In some embodiments, the memory 320 is a non-volatile computer-readable storage medium that can be used to store non-volatile software programs, non-volatile computer executable programs and modules, such as program instructions / modules of the control method of the breast pump in the embodiment of the present application. The processor 310 executes various functional applications and data processing of the breast pump by running the non-volatile software programs, instructions and modules stored in the memory 320, that is, the method for determining the milk full state of the breast pump in the above method embodiment is implemented.

[0163] In some embodiments, the memory 320 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function; the data storage area may store data created according to the use of the breast pump, etc. In addition, the memory 320 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory 320 may optionally include a memory remotely arranged relative to the processor 310, and these remote memories may be connected to the controller via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0164] In some embodiments, one or more modules are stored in the memory 320, and when executed by one or more processors 310, the method for determining the full milk state of the breast pump in any of the above method embodiments is executed, for example, the method described above is executed. Figure 8 Method steps 110 to 150 in.

[0165] Please refer to Fig.11 , Fig.11 The computer-readable storage medium 400 stores a program code 410, which can be called by a processor to execute the method for determining the milk full state of a breast pump described in the above method embodiment.

[0166] The computer-readable storage medium 400 may be an electronic memory such as a flash memory, an EEPROM (electrically erasable programmable read-only memory), an EPROM, a hard disk, or a ROM. Optionally, the computer-readable storage medium includes a non-transitory computer-readable storage medium. The computer-readable storage medium 400 has a storage space for program codes for executing any method steps in the above control method. These program codes may be read from or written to one or more computer program products. The program code may be compressed, for example, in an appropriate form.

[0167] The present application also provides a computer program product, which includes: a computer program (also referred to as code, or instruction), which enables a computer to execute a method in any of the above method embodiments when the computer program is executed.

[0168] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0169] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0170] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0171] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, read-only memory), random access memory (RAM, random access memory), disk or optical disk and other media that can store program code.

[0172] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for detecting when a breast pump is full of milk, characterized in that: The method comprises: Obtain the detection data of the milk full detection sensor; When the detection data meets the preset conditions, obtaining judgment data; Determine whether the judgment data meets the true milk full condition; In the case where the judgment data meets the true milk full condition, determining that the breast pump is in the true milk full state; When the judgment data does not satisfy the true milk full condition, it is determined that the breast pump is in a false milk full state.

2. The method according to claim 1, characterized in that The method of obtaining the detection data of the milk full detection sensor comprises: Obtain a detection value of the milk full detection sensor.

3. The method according to claim 2, characterized in that The milk full detection sensor includes at least any one of the following sensors: Differential capacitive sensor assembly; Pressure sensor; Ultrasonic sensor; Photoelectric sensor.

4. The method according to claim 3, characterized in that The milk full detection sensor is a differential capacitive sensor assembly, and the differential capacitive sensor assembly includes a parallel capacitor group and a control circuit; The parallel capacitor group includes a first electrode and a second electrode arranged opposite to each other; The control circuit is used to charge the parallel capacitor group and detect the capacitance value of the parallel capacitor group.

5. The method according to claim 2, characterized in that: The detection value is a capacitance detection value, and when the detection data meets a preset condition, obtaining the judgment data includes: When the capacitance detection value is greater than a preset capacitance detection value, continuously acquiring subsequent capacitance detection values; The determining whether the determination data satisfies the true milk full condition includes: The subsequent capacitance detection value continues to rise or remain within a preset time, and it is determined that the true milk full condition is met; The subsequent capacitance detection value shows a non-continuous upward trend within the preset time, and it is judged that the true milk full condition is not met.

6. The method according to claim 5, characterized in that The preset time ranges from 0.5s to 3s.

7. The method according to claim 5, characterized in that The non-persistent upward trend includes a downward trend after an upward trend or a fluctuating trend.

8. The method according to claim 1, characterized in that The method of obtaining the detection data of the milk full sensor comprises: A detection level signal of the milk full detection sensor is obtained.

9. The method according to claim 8, characterized in that The milk full detection sensor includes any one of the following: Inductive capacitive sensor assembly; Photoelectric sensor.

10. The method according to claim 8, characterized in that When the detection data meets the preset conditions, obtaining the judgment data includes: In the case where the detection level signal at the first moment is a preset level signal, acquiring a plurality of detection level signals from the first moment to a second moment; wherein the second moment is located after the first moment; The determining whether the determination data satisfies the true milk full condition includes: When the plurality of detection level signals are all the preset level signals, determining that the true milk full condition is satisfied; When at least one of the plurality of detection level signals is not the preset level signal, it is determined that the true milk full condition is not satisfied.

11. The method according to claim 1, characterized in that: When the detection data meets the preset conditions, obtaining the judgment data includes: When the detection data meets a preset condition, obtaining the tilt angle detected by the angle sensor; The determining whether the determination data satisfies the true milk full condition includes: determining whether the breast pump is in a tilted state according to the tilt angle; When the breast pump is not in a tilted state, determining that a true milk full condition is met; When the breast pump is in a tilted state, it is determined that the true milk full condition is not satisfied.

12. The method according to claim 1, characterized in that When the detection data meets the preset conditions, obtaining the judgment data includes: When the detection data meets the preset conditions, obtaining the vibration amplitude detected by the vibration sensor; The determining whether the determination data satisfies the true milk full condition includes: determining whether the breast pump is in a shaking state according to the vibration amplitude; When the breast pump is not in a shaking state, determining that a true milk full condition is met; When the breast pump is in a shaking state, it is determined that the true milk full condition is not met.

13. The method according to claim 1, characterized in that The method further comprises: When it is determined that the breast pump is in a truly full milk state, a preset operation is performed; wherein, The preset operation includes any one or more of the following: Controlling a prompt module in the breast pump to generate a milk full prompt message, wherein the prompt module includes at least one of a display module, a sound module, and a vibration module; Sending instruction information to an electronic device communicating with the breast pump, wherein the instruction information is used to instruct a display module of the electronic device to display the milk full reminder information; The breast pump is controlled to stop sucking milk.

14. The method according to claim 1, characterized in that The method further comprises: When it is determined that the breast pump is in a truly full milk state, the amount of milk in the breast pump is determined according to the full milk position and the mapping relationship; wherein the mapping relationship is used to indicate the corresponding relationship between the full milk position and the amount of milk.

15. A milk full detection device for a breast pump, characterized in that: The device comprises: A first acquisition unit, used to acquire detection data of the electrode type capacitive sensor assembly; A second acquisition unit, used for acquiring judgment data when the detection data meets a preset condition; A judgment unit, used to judge whether the judgment data meets the true milk full condition; a first determining unit, configured to determine that the breast pump is in a true milk full state if the judgment data satisfies a true milk full condition; The second determination unit is configured to determine that the breast pump is in a false milk full state if the judgment data does not satisfy a true milk full condition.

16. A breast pump, characterized in that: The breast pump comprises: at least one processor; and, a memory communicatively connected to the at least one processor; wherein, The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the milk full detection method for a breast pump according to any one of claims 1 to 14.

17. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores an executable program, and the executable program is executed by a processor to implement the milk full detection method for a breast pump according to any one of claims 1 to 14.

18. A computer program product, characterized in that The method comprises a computer program, which, when executed by a processor, implements the method for detecting a full milk content of a breast pump according to any one of claims 1 to 14.

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