CN115670933A - Infant feeding system based on sucking action detection and control method thereof - Google Patents
Infant feeding system based on sucking action detection and control method thereof Download PDFInfo
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Abstract
The invention discloses an infant feeding system based on sucking action detection and a control method thereof, wherein the system comprises: the sucking detection device is used for detecting the sucking action of the baby and generating a corresponding pressure sensing signal; the control device is used for extracting a sucking pressure parameter, a sucking rhythm parameter and a sucking frequency parameter according to the pressure sensing signal, judging the hunger state and the eating demand of the baby according to the sucking pressure parameter, the sucking rhythm parameter and the sucking frequency parameter, and further generating a corresponding feeding control signal; the milk pumping device is used for delivering preset nutrient solution to the infant according to the feeding control signal; and the flow detection device is used for detecting the flow value of the nutrient solution conveyed by the milk pumping device and feeding the flow value back to the control device, so that the control device adjusts the feeding control signal according to the flow value. The invention improves the efficiency and reliability of infant feeding, reduces the labor cost of medical personnel, and can be widely applied to the technical field of infant feeding equipment.
Description
Technical Field
The invention relates to the technical field of infant feeding equipment, in particular to an infant feeding system based on sucking action detection and a control method thereof.
Background
The human body can survive without nutritional support, the nutrition can be absorbed from a mother body through the placenta during the pregnancy of a fetus, the nutrition is transmitted through the umbilical cord, and the nutrition can be obtained through oral administration like adults after the normal delivery of the baby. Most premature infants in the NICU department do not have the capability of oral feeding, and can be fed in an auxiliary way only through a stomach tube by medical personnel, so that the normal nutritional requirements of the infants are ensured. The NICU department, in order to ensure adequate nutritional support for infants, basically adopts a timed and metered feeding regimen which lacks the assessment of the hunger status and feeding requirements of the infant, and is detrimental to the growth, development and recovery of the infant.
The sucking reflex is one of unconditional baby reflexes, when the baby lip touches the nipple or fingers, the mouth is opened and sucking action of the lip and the tongue occurs, and the reflex is gradually replaced by active sucking action. The intensity of the suck reflex reflects the physiological state of the infant. When the sucking reflex of the infant is strong and is the manifestation of hunger at the moment, if the reflex is weak or disappears, the possibility that the infant suffers from diseases is considered. Currently, the sucking reflex of an infant is clinically evaluated mainly according to the feeling evaluation of a clinician inserting a finger into the mouth of the infant, the scheme has the problems of strong subjectivity, difficulty in quantifying the sucking intensity and the like, and a device capable of effectively identifying whether the infant is in a hungry state is lacked.
Currently, there are two main methods for nutrition support of infants in NICU departments: the former uses injector to inject nutrient solution and uses manual push into stomach tube of baby to feed; the latter is injected into the stomach tube of the infant by gravity traction using an infusion bag filled with nutrient solution. The two methods have large manual burden on the department doctors, the efficiency is low, the artificial judgment is unreliable, and the tolerance of the infants to the two methods is still to be examined.
Disclosure of Invention
In order to solve the above technical problems, the present invention aims to: an efficient and reliable infant feeding system based on suck action detection and a control method thereof are provided.
The first technical scheme adopted by the invention is as follows:
an infant feeding system based on suck action detection, comprising:
the sucking detection device is used for detecting the sucking action of the baby and generating a corresponding pressure sensing signal;
the control device is used for extracting a sucking pressure parameter, a sucking rhythm parameter and a sucking frequency parameter according to the pressure sensing signal, judging the hunger state and the eating demand of the baby according to the sucking pressure parameter, the sucking rhythm parameter and the sucking frequency parameter, and further generating a corresponding feeding control signal;
the milk pumping device is used for delivering preset nutrient solution to the infant according to the feeding control signal;
the flow detection device is used for detecting the flow value of the nutrient solution conveyed by the milk pumping device and feeding the flow value back to the control device, so that the control device adjusts the feeding control signal according to the flow value;
wherein, the output end of the sucking detection device is connected with the first input end of the control device, the first output end of the control device is connected with the input end of the milk pumping device, and the control device is also in signal connection with the flow detection device.
Furthermore, the sucking detection device comprises a pressure detection air bag, a conduit and an air pressure sensor, wherein the pressure detection air bag is connected with the input end of the air pressure sensor through the conduit, and the output end of the air pressure sensor is connected with the first input end of the control device.
Further, pump milk device includes peristaltic pump, motor drive module and stomach tube, controlling means's first output passes through motor drive module with the input of peristaltic pump is connected, the peristaltic pump is used for exporting the nutrient solution extremely the stomach tube, the stomach tube is used for carrying to the baby the nutrient solution.
Further, the flow detection device comprises a radial magnet and a magnetic encoder, the radial magnet is arranged on a rotor of the peristaltic pump, and the magnetic encoder is used for acquiring the rotation angle of the rotor according to the change of the magnetic field of the radial magnet and determining the flow value of the nutrient solution conveyed by the milk pumping device according to the rotation angle.
Furthermore, the infant feeding system further comprises a human-computer interaction device, the human-computer interaction device comprises a display module and a key module, the output end of the key module is connected with the second input end of the control device, and the second output end of the control device is connected with the input end of the display module.
Further, the infant feeding system further comprises an abnormality alarm module, and a third output end of the control device is connected with an input end of the abnormality alarm module.
Further, the abnormal alarm module comprises at least one of a buzzer, an LED indicator light and a voice prompt unit.
Further, the control device comprises a master MCU and a slave MCU, wherein the master MCU is used for extracting a sucking pressure parameter, a sucking rhythm parameter and a sucking frequency parameter according to the pressure sensing signal, judging the hunger state and the eating demand of the baby according to the sucking pressure parameter, the sucking rhythm parameter and the sucking frequency parameter, and further generating a corresponding feeding trigger signal, and the slave MCU is used for generating a corresponding feeding control signal according to the feeding trigger signal and adjusting the feeding control signal according to the flow value.
Further, the infant feeding system further comprises a power module, and the sucking detection device, the milk pumping device, the flow detection device and the control device are all electrically connected with the power module.
The second technical scheme adopted by the invention is as follows:
a method of controlling an infant feeding system based on suck action detection, for execution by the above infant feeding system based on suck action detection, comprising the steps of:
detecting the sucking action of the baby through a sucking detection device and generating a corresponding pressure sensing signal;
receiving the pressure sensing signal through a control device, extracting a sucking pressure parameter, a sucking rhythm parameter and a sucking frequency parameter according to the pressure sensing signal, and judging the hunger state and the eating demand of the baby according to the sucking pressure parameter, the sucking rhythm parameter and the sucking frequency parameter so as to generate a corresponding feeding control signal;
controlling a milk pumping device to deliver preset nutrient solution to the infant according to the feeding control signal;
and detecting the flow value of the nutrient solution conveyed by the milk pumping device through a flow detection device, and feeding the flow value back to the control device, so that the control device adjusts the feeding control signal in real time according to the flow value.
The invention has the beneficial effects that: the invention provides a baby feeding system based on sucking action detection and a control method thereof, wherein a sucking action detection device is used for detecting the sucking action of a baby and generating a corresponding pressure sensing signal, a control device is used for receiving the pressure sensing signal, a sucking pressure parameter, a sucking rhythm parameter and a sucking frequency parameter are extracted according to the pressure sensing signal, the hunger state and the eating demand of the baby are judged according to the sucking pressure parameter, the sucking rhythm parameter and the sucking frequency parameter, a corresponding feeding control signal is generated, a pump-milk device is controlled according to the feeding control signal to deliver preset nutrient solution to the baby, a flow rate detection device is used for detecting the flow rate value of the nutrient solution delivered by the pump-milk device, and the flow rate value is fed back to the control device, so that the control device adjusts the feeding control signal according to the flow rate value. According to the invention, the sucking action of the baby is detected in real time by the sucking detection device and a pressure sensing signal is generated, the hunger state and the feeding demand of the baby can be judged according to the pressure sensing signal and a corresponding feeding control signal is generated, so that the milk pumping device can be controlled to quickly deliver nutrient solution to the baby, the efficiency and the reliability of feeding the baby are improved, and the labor cost of medical personnel is reduced; the flow value of the nutrient solution conveyed is monitored in real time through the flow detection device, so that the conveying of the nutrient solution can be adjusted in real time according to the flow value, the accurate closed-loop flow output control is realized, accurate and proper nutrition support is provided for infants, and the feeding reliability of the infants is further improved.
Drawings
FIG. 1 is a schematic diagram of a baby feeding system based on suck action detection according to an embodiment of the present invention;
FIG. 2 is a flow chart of steps in a method of controlling an infant feeding system based on detection of sucking action according to an embodiment of the present invention;
fig. 3 is a schematic workflow diagram of an infant feeding system based on suck action detection according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments. The step numbers in the following embodiments are provided only for convenience of illustration, the order between the steps is not limited at all, and the execution order of each step in the embodiments can be adapted according to the understanding of those skilled in the art.
In the description of the present invention, the meaning of a plurality is more than two, if there are first and second described for the purpose of distinguishing technical features, but not for indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features. Furthermore, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1, an embodiment of the present invention provides an infant feeding system based on suck action detection, comprising:
the sucking detection device is used for detecting the sucking action of the baby and generating a corresponding pressure sensing signal;
the control device is used for extracting a sucking pressure parameter, a sucking rhythm parameter and a sucking frequency parameter according to the pressure sensing signal, judging the hunger state and the eating demand of the baby according to the sucking pressure parameter, the sucking rhythm parameter and the sucking frequency parameter, and further generating a corresponding feeding control signal;
the milk pumping device is used for delivering preset nutrient solution to the infant according to the feeding control signal;
the flow detection device is used for detecting the flow value of the nutrient solution conveyed by the milk pumping device and feeding the flow value back to the control device, so that the control device adjusts the feeding control signal according to the flow value;
the output end of the sucking detection device is connected with the first input end of the control device, the first output end of the control device is connected with the input end of the milk pumping device, and the control device is further in signal connection with the flow detection device.
In the embodiment of the invention, a sucking action of a baby is detected by a sucking detection device and a corresponding pressure sensing signal is generated, the pressure sensing signal is received by a control device, a sucking pressure parameter, a sucking rhythm parameter and a sucking frequency parameter are extracted according to the pressure sensing signal, the hunger state and the eating demand of the baby are judged according to the sucking pressure parameter, the sucking rhythm parameter and the sucking frequency parameter, a corresponding feeding control signal is generated, a preset nutrient solution is controlled to be delivered to the baby by a milk pumping device according to the feeding control signal, the flow value of the nutrient solution delivered by the milk pumping device is detected by a flow detection device and fed back to the control device, so that the control device adjusts the feeding control signal according to the flow value. According to the invention, the sucking action of the baby is detected in real time by the sucking detection device and a pressure sensing signal is generated, the hunger state and the feeding demand of the baby can be judged according to the pressure sensing signal and a corresponding feeding control signal is generated, so that the milk pumping device can be controlled to quickly deliver nutrient solution to the baby, the efficiency and the reliability of feeding the baby are improved, and the labor cost of medical personnel is reduced; the flow value of the nutrient solution is monitored in real time through the flow detection device, so that the nutrient solution can be conveyed in real time according to the flow value, the closed-loop flow output control is accurately realized, accurate and proper nutrition support is provided for infants, and the infant feeding reliability is further improved.
In some optional embodiments, the Control device includes at least one logic computing device of an MCU (Micro-programmed Control Unit), a CPU (Central Processing Unit), a DSP (Digital Signal Processor), a single chip, and an embedded device.
Referring to fig. 1, as a further alternative embodiment, the sucking detection device includes a pressure detection balloon, a conduit and an air pressure sensor, the pressure detection balloon is connected with an input end of the air pressure sensor through the conduit, and an output end of the air pressure sensor is connected with a first input end of the control device.
Specifically, the sucking detection device mainly comprises a pressure detection air bag (which can be placed in the oral cavity of an infant and is similar to a pacifier in shape), a conduit, a quick connector and an air pressure sensor. The pressure detection gasbag is connected with the one end of pipe, and the other end of pipe is equipped with quick connector, and this quick connector is connected to baroceptor's response kneck, can suck the gasbag when the baby is hungry, and the gasbag is because of baby's oral cavity motion extrusion and then produce deformation and then make internal pressure change to generate the forced induction signal through baroceptor, and carry out signal analysis through controlling means, and then judge baby's hunger degree and feed demand. It is understood that the mapping relationship between the hunger level, the eating demand and the pressure-sensing signal can be preset.
In some optional embodiments, the suction detection device further includes a filter circuit, and the air pressure sensing signal output by the air pressure sensor is filtered by the filter circuit and then transmitted to the control device.
Referring to fig. 1, as a further optional implementation, the milk pumping device includes a peristaltic pump, a motor driving module and a gastric tube, a first output end of the control device is connected to an input end of the peristaltic pump through the motor driving module, the peristaltic pump is used for outputting the nutrient solution to the gastric tube, and the gastric tube is used for delivering the nutrient solution to the infant.
Specifically, the milk pumping device consists of a peristaltic pump (such as a finger-shaped peristaltic pump), a motor driving module and a stomach tube. The control device controls the peristaltic pump to run through the motor driving module, so that the peristaltic pump outputs nutrient solution to the stomach tube, and the nutrient solution can be conveyed to the infant.
In some alternative embodiments, the milk pumping device is provided with a hardware protection function for preventing suck-back and a software protection function for limiting an output threshold.
Referring to fig. 1, as a further alternative embodiment, the flow detection device includes a radial magnet disposed on the rotor of the peristaltic pump, and a magnetic encoder for acquiring a rotation angle of the rotor according to a change in a magnetic field of the radial magnet and determining a flow value of the nutrient solution delivered by the milk pumping device according to the rotation angle.
Specifically, the flow detection device consists of a radial magnet mounted on the peristaltic pump rotor and a magnetic encoder. The magnetic field that radial magnet produced changes because of the motion angle change of rotor, and the rotation angle of rotor can be gathered to the magnetic encoder accessible magnetic field transformation accuracy, can consequently the accurate output flow who calculates the pump milk transposition, and then monitors the output flow of pump milk device, ensures baby's safe in utilization, avoids feeding the error.
In some optional embodiments, the magnetic encoder is absolute and has no accumulated error, and meanwhile, the magnetic encoder and the radial magnet are in non-contact induction, so that errors caused by middle contact are effectively avoided.
Referring to fig. 1, as a further alternative embodiment, the infant feeding system further includes a human-computer interaction device, the human-computer interaction device includes a display module and a key module, an output end of the key module is connected to the second input end of the control device, and a second output end of the control device is connected to an input end of the display module.
Specifically, the man-machine interaction device comprises a liquid crystal touch integrated screen and a knob key, and a user can check the system state, the using condition of an infant and set the working mode of the system through the man-machine interaction device.
Referring to fig. 1, as a further alternative embodiment, the infant feeding system further comprises an abnormality alarm module, and the third output of the control device is connected to an input of the abnormality alarm module.
Further as an optional embodiment, the abnormality warning module includes at least one of a buzzer, an LED indicator, and a voice prompt unit.
Specifically, the abnormality warning module includes at least one of a buzzer, an LED indicator light, and a voice prompt unit. When the control device detects an abnormality (for example, the air pressure sensing signal exceeds a preset air pressure threshold, and the flow value of nutrient solution delivery exceeds a preset flow threshold), an alarm state is triggered. When the alarm is in an alarm state, the buzzer can intermittently and continuously sound; the LED indicator lamp continuously flickers to prompt; the voice prompt unit can prompt through voice; in addition, the human-computer interface will pop up the abnormal problem, and at the same time the system will stop feeding until the operator responds to the abnormal treatment at the human-computer interface.
Referring to fig. 1, as a further alternative embodiment, the control device includes a master MCU and a slave MCU, the master MCU is configured to extract a sucking pressure parameter, a sucking rhythm parameter and a sucking frequency parameter according to the pressure sensing signal, and determine the hunger state and eating demand of the infant according to the sucking pressure parameter, the sucking rhythm parameter and the sucking frequency parameter, so as to generate a corresponding feeding trigger signal, and the slave MCU is configured to generate a corresponding feeding control signal according to the feeding trigger signal, and adjust the feeding control signal according to the flow value.
Specifically, the control device is mainly used for controlling other devices, processing signals and performing human-computer interaction control, and is composed of a plurality of MCUs, as shown in fig. 3, it is a schematic diagram of a working flow of the infant feeding system based on sucking action detection provided by the embodiment of the present invention, wherein, a main MCU monitors pressure sensing signals collected by a sucking detection device, extracts sucking pressure parameters, sucking rhythm parameters and sucking frequency parameters, and uses the variation of each parameter as a trigger condition for starting feeding or not; when the trigger condition is met, the master MCU transmits a generated feeding trigger signal to the slave MCU in a serial port communication mode, the slave MCU is responsible for controlling the starting and stopping of the milk pumping device, and the I/O port is used for transmitting a pulse signal to control the milk pumping device to deliver nutrient solution; in addition, the flow detection device detects the flow output parameter (namely the flow value) of the nutrient solution output by the pumping device in real time and then feeds the flow output parameter back to the slave MCU, so that the slave MCU can adjust the feeding control signal according to the flow output parameter fed back in real time, and the accurate closed-loop flow output control is realized.
In some alternative embodiments, the master MCU may be a high performance 32-bit microprocessor and the slave controller may be an 8/32-bit microprocessor.
It can be understood that the control device is also used for processing task instructions made by an operator in the man-machine interaction device, receiving abnormal signals of other devices, feeding back abnormal alarm signals to the abnormal alarm module after analyzing the abnormal signals, and braking partial functions of other devices.
As a further optional embodiment, the infant feeding system further comprises a power module, and the suction detection device, the milk pumping device, the flow detection device and the control device are electrically connected to the power module.
Specifically, the power module may be the commercial power converted by the power adapter, or may be an energy storage battery used for power-off of the system.
The above is a description of the system structure of the embodiment of the present invention, and the embodiment of the present invention has two feeding modes: passive mode and smart mode.
Passive mode: medical care personnel set parameters such as milk feeding amount, milk feeding time interval, sucking detection sensitivity and the like needed by the infant through the human-computer interaction device to set values for feeding. This mode mainly used state of an illness comparatively serious baby, obtains more reasonable nutrition support through this mode, has reduced the nursing energy of doctorsing and nurses simultaneously.
Intelligent mode: the system collects the change of the sucking pressure of the baby through the baby sucking detection device, and the MCU judges whether to start feeding once according to the change conditions of the sucking pressure parameter, the sucking rhythm parameter, the sucking frequency parameter and the sucking detection sensitivity. The mode is suitable for most of the premature infants in the NICU department, feeding can be carried out according to the personal intention of the premature infant by sucking triggering feeding, development and rehabilitation of the premature infant are facilitated, and meanwhile, recorded sucking physiological parameters facilitate further analysis of the rehabilitation condition of the premature infant by a doctor.
Referring to fig. 2, an embodiment of the present invention provides a method of controlling an infant feeding system based on suck action detection, comprising the steps of:
s101, detecting the sucking action of the baby through a sucking detection device and generating a corresponding pressure sensing signal;
s102, receiving the pressure sensing signal through the control device, extracting a sucking pressure parameter, a sucking rhythm parameter and a sucking frequency parameter according to the pressure sensing signal, and judging the hunger state and the feeding demand of the baby according to the sucking pressure parameter, the sucking rhythm parameter and the sucking frequency parameter so as to generate a corresponding feeding control signal;
s103, controlling a milk pumping device to deliver preset nutrient solution to the infant according to the feeding control signal;
and S104, detecting the flow value of the nutrient solution conveyed by the milk pumping device through the flow detection device, and feeding the flow value back to the control device, so that the control device adjusts a feeding control signal according to the flow value.
Specifically, the embodiment of the invention detects the sucking action of the baby through the sucking detection device and generates a corresponding pressure sensing signal, the control device receives the pressure sensing signal, extracts a sucking pressure parameter, a sucking rhythm parameter and a sucking frequency parameter according to the pressure sensing signal, judges the hunger state and the eating demand of the baby according to the sucking pressure parameter, the sucking rhythm parameter and the sucking frequency parameter, further generates a corresponding feeding control signal, controls the pump milk device to deliver preset nutrient solution to the baby according to the feeding control signal, detects the flow value of the nutrient solution delivered by the pump milk device through the flow detection device, and feeds back the flow value to the control device, so that the control device adjusts the feeding control signal according to the flow value. According to the invention, the sucking action of the baby is detected in real time by the sucking detection device and a pressure sensing signal is generated, the hunger state and the feeding demand of the baby can be judged according to the pressure sensing signal and a corresponding feeding control signal is generated, so that the milk pumping device can be controlled to quickly deliver nutrient solution to the baby, the efficiency and the reliability of feeding the baby are improved, and the labor cost of medical personnel is reduced; the flow value of the nutrient solution is monitored in real time through the flow detection device, so that the nutrient solution can be conveyed in real time according to the flow value, the closed-loop flow output control is accurately realized, accurate and proper nutrition support is provided for infants, and the infant feeding reliability is further improved.
It should be recognized that embodiments of the present invention can be realized and implemented by computer hardware, a combination of hardware and software, or by computer instructions stored in a non-transitory computer readable memory. The above-described methods may be implemented in a computer program using standard programming techniques, including a non-transitory computer-readable storage medium configured with the computer program, where the storage medium so configured causes a computer to operate in a specific and predefined manner, according to the methods and figures described in the detailed description. Each program may be implemented in a high level procedural or object oriented programming language to communicate with a computer system. However, the program(s) can be implemented in assembly or machine language, if desired. In any case, the language may be a compiled or interpreted language. Furthermore, the program can be run on a programmed application specific integrated circuit for this purpose.
Further, the operations of processes described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The processes described herein (or variations and/or combinations thereof) may be performed under the control of one or more computer systems configured with executable instructions, and may be implemented as code (e.g., executable instructions, one or more computer programs, or one or more applications) collectively executed on one or more processors, by hardware, or combinations thereof. The computer program includes a plurality of instructions executable by one or more processors.
Further, the above-described methods may be implemented in any type of computing platform operatively connected to a suitable connection, including but not limited to a personal computer, mini computer, mainframe, workstation, networked or distributed computing environment, separate or integrated computer platform, or in communication with a charged particle tool or other imaging device, and the like. Aspects of the invention may be embodied in machine-readable code stored on a non-transitory storage medium or device, whether removable or integrated into a computing platform, such as a hard disk, optically read and/or write storage medium, RAM, ROM, or the like, such that it may be read by a programmable computer, which when read by the storage medium or device, is operative to configure and operate the computer to perform the procedures described herein. Further, the machine-readable code, or portions thereof, may be transmitted over a wired or wireless network. The invention described herein includes these and other different types of non-transitory computer-readable storage media when such media include instructions or programs that implement the steps described above in conjunction with a microprocessor or other data processor. The invention also includes the computer itself when programmed according to the methods and techniques described herein.
A computer program can be applied to input data to perform the functions described herein to transform the input data to generate output data that is stored to non-volatile memory. The output information may also be applied to one or more output devices, such as a display. In a preferred embodiment of the invention, the transformed data represents physical and tangible objects, including particular visual depictions of physical and tangible objects produced on a display.
The present invention is not limited to the above embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention as long as the technical effects of the present invention are achieved by the same means. The invention is capable of other modifications and variations in its technical solution and/or its implementation, within the scope of protection of the invention.
Claims (10)
1. An infant feeding system based on suck action detection, comprising:
the sucking detection device is used for detecting the sucking action of the baby and generating a corresponding pressure sensing signal;
the control device is used for extracting a sucking pressure parameter, a sucking rhythm parameter and a sucking frequency parameter according to the pressure sensing signal, judging the hunger state and the eating demand of the baby according to the sucking pressure parameter, the sucking rhythm parameter and the sucking frequency parameter, and further generating a corresponding feeding control signal;
the milk pumping device is used for delivering preset nutrient solution to the infant according to the feeding control signal;
the flow detection device is used for detecting the flow value of the nutrient solution conveyed by the milk pumping device and feeding the flow value back to the control device, so that the control device adjusts the feeding control signal according to the flow value;
wherein, the output end of the sucking detection device is connected with the first input end of the control device, the first output end of the control device is connected with the input end of the milk pumping device, and the control device is also in signal connection with the flow detection device.
2. A baby feeding system based on suck action detection as claimed in claim 1 wherein: the sucking detection device comprises a pressure detection air bag, a conduit and an air pressure sensor, wherein the pressure detection air bag is connected with the input end of the air pressure sensor through the conduit, and the output end of the air pressure sensor is connected with the first input end of the control device.
3. A baby feeding system based on suck action detection as claimed in claim 1 wherein: the milk pumping device comprises a peristaltic pump, a motor driving module and a stomach tube, a first output end of the control device is connected with an input end of the peristaltic pump through the motor driving module, the peristaltic pump is used for outputting the nutrient solution to the stomach tube, and the stomach tube is used for conveying the nutrient solution to the infant.
4. A baby feeding system based on suck action detection as claimed in claim 3 wherein: the flow detection device comprises a radial magnet and a magnetic encoder, the radial magnet is arranged on a rotor of the peristaltic pump, and the magnetic encoder is used for acquiring the rotation angle of the rotor according to the change of the magnetic field of the radial magnet and determining the flow value of the nutrient solution conveyed by the milk pumping device according to the rotation angle.
5. A baby feeding system based on suck action detection as claimed in claim 1 wherein: the infant feeding system further comprises a human-computer interaction device, the human-computer interaction device comprises a display module and a key module, the output end of the key module is connected with the second input end of the control device, and the second output end of the control device is connected with the input end of the display module.
6. A baby feeding system based on suck action detection as claimed in claim 1 wherein: the infant feeding system further comprises an abnormality alarm module, and a third output end of the control device is connected with an input end of the abnormality alarm module.
7. An infant feeding system based on suck action detection as claimed in claim 6, wherein: the abnormity warning module comprises at least one of a buzzer, an LED indicator light and a voice prompt unit.
8. A baby feeding system based on suck action detection as claimed in claim 1 wherein: the control device comprises a master MCU and a slave MCU, wherein the master MCU is used for extracting a sucking pressure parameter, a sucking rhythm parameter and a sucking frequency parameter according to the pressure sensing signal, judging the hunger state and the eating demand of the baby according to the sucking pressure parameter, the sucking rhythm parameter and the sucking frequency parameter, and further generating a corresponding feeding trigger signal, and the slave MCU is used for generating a corresponding feeding control signal according to the feeding trigger signal and adjusting the feeding control signal according to the flow value.
9. A baby feeding system based on suck action detection as claimed in any one of claims 1 to 8 wherein: the infant feeding system further comprises a power module, and the suction detection device, the milk pumping device, the flow detection device and the control device are all electrically connected with the power module.
10. A method of controlling a baby feeding system based on suck action detection, for execution by a baby feeding system based on suck action detection as claimed in any one of claims 1 to 9, comprising the steps of:
detecting the sucking action of the baby through a sucking detection device and generating a corresponding pressure sensing signal;
receiving the pressure sensing signal through a control device, extracting a sucking pressure parameter, a sucking rhythm parameter and a sucking frequency parameter according to the pressure sensing signal, and judging the hunger state and the eating demand of the baby according to the sucking pressure parameter, the sucking rhythm parameter and the sucking frequency parameter so as to generate a corresponding feeding control signal;
controlling a milk pumping device to deliver preset nutrient solution to the infant according to the feeding control signal;
and detecting the flow value of the nutrient solution conveyed by the milk pumping device through a flow detection device, and feeding the flow value back to the control device, so that the control device adjusts the feeding control signal in real time according to the flow value.
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