CN110867049A

CN110867049A - System and method for preventing baby from turning over and suffocating

Info

Publication number: CN110867049A
Application number: CN201911387084.8A
Authority: CN
Inventors: 邹伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-03-06

Abstract

The invention relates to a system and a method for preventing baby from turning over and suffocating, wherein the system comprises an SOS signal generator and an SOS signal receiver. The SOS signal generator includes: the shell and the slave controller, and a strain gauge circuit, a slave wireless transmitting circuit, a slave wireless receiving circuit and a slave power supply circuit which are connected with the slave controller. The SOS signal receiver includes: the wireless monitoring system comprises a main controller, and a user reminding circuit, a user feedback circuit, a main wireless transmitting circuit, a main wireless receiving circuit and a main power supply circuit which are connected with the main controller. The SOS signal generator is placed below an infant, when the infant turns over to press the shell to deform, the resistance of the strain gauge attached to the shell changes, the slave controller monitors the change and sends a wireless signal to the SOS signal receiver through the slave wireless transmitting circuit, the master controller receives a corresponding signal through the master wireless receiving circuit, and the master controller controls the user reminding circuit to remind an infant guardian. The invention solves the problem that the turnover of the baby cannot be found in time.

Description

System and method for preventing baby from turning over and suffocating

Technical Field

The invention relates to a system and a method for preventing baby from turning over and suffocating, in particular to an intelligent monitoring system and a method for enabling a baby guardian to find baby turning over or quilt kicking in time.

Background

The sleeping posture influences the breathing, the head of the infant is softer, and the good sleeping posture is beneficial to the development of the head.

The best sleeping position of the baby is supine or side lying to avoid oppressing chest and lung, doctors recommend to sleep on side after feeding to avoid suffocation caused by milk overflow or cough, but many parents worry about that the baby turns over carelessly and turns prone when sleeping on side.

The baby does not lie prone as much as possible before 3 months, because the skeleton of the baby before 3 months is soft, the strength is not enough, the baby cannot turn over, and the sleeping posture cannot be adjusted by self. The baby can turn over slowly after 3 months, but can not turn back to the lying position after turning over.

The baby lies prone for a long time to sleep, the bed is too soft and easily buries the mouth and nose of the baby to suffocate, and 83% of sudden death of the baby is related to lying prone to sleep. Too hard a bed may push against the baby's mandible, making the baby's chin flat, or "ground-covered" conditions. If the baby lies prone for a long time, parents are asleep and not in time let the baby adjust the sleeping posture, and the consequence is unimaginable.

The infant is in a cold high-incidence period after 6 months, because the autoimmunity is not completely developed at the time, the infant can suffer from high fever once suffering from the cold, the fever is easily caused when the quilt is covered more or less during sleeping, and if the infant kicks the quilt, parents sleep without noticing, the infant can suffer from the cold. A slightly larger baby will often turn over frequently during sleep and may roll over and fall off the bed.

Similar invention of the inventor before: the method of the infant intelligent monitoring system, the method of the infant intelligent monitoring system and the method of the microwave intelligent monitoring system have the problems of poor monitoring effect, insufficient sensitivity and the like. The invention is greatly improved on the basis of the prior invention.

Disclosure of Invention

In view of this, the invention provides a scheme for preventing the baby from turning over and suffocating, so as to solve the problem that the baby is injured due to the fact that the baby turns over or kicks a quilt under the condition that a baby guardian is careless.

In order to achieve the purpose, the invention provides the following technical scheme:

a system and method for preventing baby from turning over and suffocating is characterized in that the system comprises an SOS signal generator and an SOS signal receiver;

the SOS signal generator includes: the device comprises a shell, a slave controller, a strain gauge circuit, a slave wireless transmitting circuit, a slave wireless receiving circuit and a slave power circuit, wherein the strain gauge circuit, the slave wireless transmitting circuit, the slave wireless receiving circuit and the slave power circuit are connected with the slave controller;

the SOS signal receiver includes: the system comprises a main controller, and a user reminding circuit, a user feedback circuit, a main wireless transmitting circuit, a main wireless receiving circuit and a main power circuit which are connected with the main controller, wherein the main power circuit supplies power to all circuits in an SOS signal receiver;

the SOS signal generator and the SOS signal receiver are devices which can be carried by a human body and are convenient for reminding a baby guardian, the SOS signal generator is a special device, the SOS signal receiver can be a special device, such as an intelligent watch, an intelligent bracelet or an intelligent bracelet, and the like, and can also be a universal device, such as a mobile phone, a tablet computer, and the like;

the slave controller and the master controller are integrated circuit chips and comprise a single chip microcomputer, a DSP (digital signal processor), an ARM (advanced RISC machine) chip or a special chip and the like;

the strain gauge circuit comprises a resistance strain gauge, a semiconductor strain gauge, an optical strain gauge and the like, and the strain gauge principle is as follows: by utilizing the physical characteristics and the geometric characteristics of the conductors, when one conductor is stretched by an external force within the elastic limit of the conductor, the conductor cannot be broken or generates permanent deformation to be narrowed and lengthened, the end resistance change of the conductor is large due to the deformation, and on the contrary, the end resistance change of the conductor is small due to the deformation when the conductor is compressed to be widened and shortened. By measuring the resistance of the strain gauge, the strain can be calculated. The strain gauge is tightly and fixedly attached to the housing of the SOS signal generator, and when the housing of the SOS signal generator deforms, the stress of the strain gauge changes, and the strain gauge deforms along with the stress of the strain gauge, so that the resistance of the strain gauge changes;

the slave power supply circuit and the master power supply circuit are voltage conversion circuits and comprise AC/DC conversion circuits or DC/DC conversion circuits;

the reminding user circuit comprises an image display circuit, a motor circuit and a horn circuit, wherein the image display circuit sends out an alarm image to remind a baby guardian, the horn circuit sends out an alarm sound to remind the baby guardian, and the motor circuit sends out alarm vibration to remind the baby guardian;

the user feedback circuit is a man-machine interaction function circuit of the infant guardian and the SOS signal receiver, and when the infant guardian receives an alarm image, an alarm sound and an alarm vibration which are sent by a reminding user circuit of the SOS signal receiver, the infant guardian acts on the user feedback circuit to indicate that the infant guardian has received the alarm reminding of the SOS signal receiver;

the master wireless transmitting circuit and the slave wireless transmitting circuit comprise a radio modulation circuit and an antenna;

the master wireless receiving circuit and the slave wireless receiving circuit comprise wireless demodulation circuits and antennas;

the system and the method for preventing the infant from turning over and suffocating comprise the following steps:

step 1: the SOS signal generator is placed below or beside an infant to be monitored, and when the infant turns over or acts, the SOS signal generator is pressed, so that the shell of the SOS signal generator deforms;

step 2: the strain gauge circuit comprises a strain gauge, the strain gauge is tightly and fixedly attached to a shell of the SOS signal generator, and when the shell of the SOS signal generator deforms, the stress of the strain gauge changes, and the strain gauge deforms along with the stress of the strain gauge, so that the resistance of the strain gauge changes;

and step 3: when the resistance of the strain gauge changes, the monitoring signal transmitted to the slave controller by the strain gauge circuit changes;

and 4, step 4: the slave controller judges the monitoring signal transmitted by the strain gauge circuit, and when the monitoring signal transmitted by the strain gauge circuit reaches a warning value preset by the slave controller, the slave controller repeatedly transmits an SOS signal to the slave wireless transmitting circuit at intervals;

and 5: modulating and converting the SOS signal sent from the controller into a radio signal from a wireless transmitting circuit and transmitting the radio signal to an SOS signal receiver;

step 6: a main wireless receiving circuit of the SOS signal receiver receives the radio signal, and the radio signal is demodulated and converted to obtain an SOS signal;

and 7: after the main wireless receiving circuit transmits the SOS signal to the main controller, the main controller sends a reminding signal to a circuit for reminding a user;

and 8: the reminding user circuit comprises an image display circuit, a motor circuit and a loudspeaker circuit, after the reminding user circuit receives a reminding signal sent by the main controller, the image display circuit sends an alarm image to remind a baby guardian, the loudspeaker circuit sends an alarm sound to remind the baby guardian, and the motor circuit sends an alarm vibration to remind the baby guardian;

and step 9: when the infant guardian receives an alarm image, an alarm sound and an alarm vibration which are sent by the user circuit and used for reminding the user circuit of the SOS signal receiver, the infant guardian acts on the user feedback circuit, and the user feedback circuit transmits a user feedback signal to the main controller;

step 10: after the main controller receives a user feedback signal transmitted by the user feedback circuit, the main controller stops sending a reminding signal to remind the user circuit, and sends an SOS releasing signal to the main wireless transmitting circuit;

step 11: after reminding the user circuit that the reminding signal sent by the main controller is not received, reminding the image display circuit contained in the user circuit to stop sending out alarm images, the horn circuit to stop sending out alarm sound, and the motor circuit to stop sending out alarm vibration;

step 12: the main wireless transmitting circuit modulates and converts the SOS releasing signal sent by the main controller into a radio signal and transmits the radio signal to the SOS signal generator;

step 13: the SOS signal generator receives the radio signal from the wireless receiving circuit, and demodulates and converts the radio signal to obtain a SOS release signal;

step 14: after the SOS release signal is transmitted from the wireless receiving circuit to the slave controller, the slave controller stops repeatedly transmitting the SOS signal to the slave wireless transmitting circuit.

The system and the method for preventing the baby from turning over and suffocating can find the baby turning over or kicking off a quilt in time, remind a baby guardian of paying attention to dangerous conditions in time and avoid harm to the baby.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic system structure diagram of a system and a method for preventing baby from turning over and suffocating according to embodiment 1 of the present invention;

fig. 2 is a flowchart of the operation steps of a system and a method for preventing baby from turning over and suffocating, provided by the embodiment 1 of the invention;

fig. 3 is a system structure diagram of a system and a method for preventing baby from turning over and suffocating according to embodiment 2 of the present invention;

fig. 4 is a flowchart of the operation steps of a system and a method for preventing baby from turning over and suffocating according to the embodiment 2 of the invention;

fig. 5 is a system structure diagram of a system and a method for preventing baby from turning over and suffocating according to embodiment 3 of the present invention;

fig. 6 is a flowchart of the operation steps of a system and method for preventing baby from turning over and suffocating according to embodiment 3 of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

This embodiment 1 provides a system and a method for preventing baby from turning over and suffocating, and the structural schematic diagram of the system is shown in fig. 1. The system comprises an SOS signal generator 1 and an SOS signal receiver 2.

The SOS signal generator 1 includes: the housing 101, the slave controller 103, the strain gauge circuit 102 connected with the slave controller 103, the slave wireless transmitting circuit 106, the slave wireless receiving circuit 105, the slave power circuit 104, and the slave power circuit 104 supply power to the circuits in the SOS signal generator 1.

The SOS signal receiver 2 includes: the SOS signal receiver comprises a main controller 203, a reminding user circuit 201, a user feedback circuit 202, a main wireless transmitting circuit 206, a main wireless receiving circuit 205 and a main power supply circuit 204, wherein the reminding user circuit 201, the user feedback circuit 202, the main wireless transmitting circuit 206, the main wireless receiving circuit 205 and the main power supply circuit 204 are connected with the main controller 203, and the main power supply circuit 204 supplies power to all circuits in the SOS signal receiver.

This embodiment 1 SOS signal generator 1 and SOS signal receiver 2 are human portable equipment, are convenient for remind baby guardianship, and SOS signal generator 1 is the professional equipment, and SOS signal receiver 2 can be professional equipment, for example intelligent wrist-watch, intelligent bracelet or intelligent hand ring etc. also can be general equipment, for example cell-phone, panel computer etc..

In this embodiment 1, the slave controller 103 and the master controller 203 are 8051 single chip microcomputer integrated circuit chips.

The strain gauge circuit described in this embodiment 1 includes a resistance strain gauge, and the working principle of the resistance strain gauge is based on the change of the resistance value of a conductor or a semiconductor material when the conductor or the semiconductor material is mechanically deformed under the action of an external force. By measuring the resistance of the resistance strain gauge, the strain of the covered area can be calculated. The resistance strain gauge is tightly fixed and attached to the housing 101 of the SOS signal generator 1 of this embodiment 1, and when the housing 101 of the SOS signal generator 1 deforms, the resistance strain gauge deforms accordingly, so that the resistance of the resistance strain gauge changes.

The slave power circuit 104 described in this embodiment 1 includes a battery of 3VDC button cell and a DC/DC conversion circuit, and the DC/DC conversion circuit converts the direct current of the 3VDC button cell into the strain gauge circuit 102, the slave controller 103, 3.3VDC required by the slave wireless receiving circuit 105, and 12VDC required by the slave wireless transmitting circuit 106.

This embodiment 1 remind user circuit 201 to contain image display circuit, motor circuit, loudspeaker circuit, the image display circuit is 1.14 cun TFT liquid crystal display, and motor circuit is 4 x 8mm miniature vibrating motor, and loudspeaker circuit is miniature passive buzzer loudspeaker. The image display circuit sends out an alarm image to remind a baby guardian, the horn circuit sends out an alarm sound to remind the baby guardian, and the motor circuit sends out alarm vibration to remind the baby guardian. (ii) a

The user feedback circuit 202 of this embodiment 1 is a switch button, which is a man-machine interaction functional circuit between the infant guardian and the SOS signal receiver 2 of this embodiment 1, and when the infant guardian receives the alarm image, the alarm sound, and the alarm vibration sent by the user prompting circuit 201 of the SOS signal receiver 2 of this embodiment 1, the infant guardian presses the switch button to act on the user feedback circuit 202, which indicates that the infant guardian has received the alarm prompt of the SOS signal receiver 2.

The main power circuit 204 described in this embodiment 1 includes a lithium battery, a lithium battery charging and discharging circuit, and a DC/DC conversion circuit, where the lithium battery charging and discharging circuit uses a lithium battery power management chip to prevent overshoot and overdischarge of the lithium battery, and the DC/DC conversion circuit converts a lithium battery direct current into 3.3VDC required by the main controller 203, the reminding user circuit 201, the user feedback circuit 202, the main wireless receiving circuit 205, and 12VDC required by the main wireless transmitting circuit 206.

The master wireless transmitting circuit 206 and the slave wireless transmitting circuit 106 described in this embodiment 1 include a radio modulation circuit, an antenna, and a 433MHZ radio frequency wireless transmitting circuit.

The master wireless receiving circuit 205 and the slave wireless receiving circuit 105 described in this embodiment 1 include a wireless tuning circuit, an antenna, and a 433MHZ radio frequency wireless receiving circuit.

The present embodiment 1 provides a system and a method for preventing infant from turning over and suffocating, the flow chart of the operation steps of the method is shown in fig. 2, and the method includes:

s101: step 1: the SOS signal generator 1 is placed below or beside an infant to be monitored, and when the infant turns over or acts, the SOS signal generator 1 is pressed, so that the shell 101 of the SOS signal generator 1 is deformed;

s102: step 2: the strain gauge circuit 102 comprises a strain gauge which is tightly and fixedly attached to the housing 101 of the SOS signal generator 1, and when the housing 101 of the SOS signal generator 1 deforms, the strain gauge deforms along with the deformation of the housing, the stress of the strain gauge changes, so that the resistance of the strain gauge changes;

s103: and step 3: when the resistance of the strain gauge changes, the monitoring signal transmitted to the slave controller 103 by the strain gauge circuit 102 changes;

s104: and 4, step 4: the slave controller 103 judges the monitoring signal transmitted by the strain gauge circuit 102, and when the monitoring signal transmitted by the strain gauge circuit 102 reaches an alarm value preset by the slave controller 103, the slave controller 103 repeatedly transmits an SOS signal to the slave wireless transmitting circuit 106 at intervals;

s105: and 5: the SOS signal transmitted from the controller 103 is modulated and converted into a radio signal by the wireless transmission circuit 106 and transmitted to the SOS signal receiver 2;

s106: step 6: a main wireless receiving circuit 205 of the SOS signal receiver 2 receives the radio signal, and demodulates and converts the radio signal to obtain an SOS signal;

s107: and 7: after the main wireless receiving circuit 205 transmits the SOS signal to the main controller 203, the main controller 203 sends a reminding signal to the reminding user circuit 201;

s108: and 8: the reminding user circuit 201 comprises an image display circuit, a motor circuit and a loudspeaker circuit, after the reminding user circuit 201 receives a reminding signal sent by the main controller 203, the image display circuit sends out an alarm image to remind an infant guardian, the loudspeaker circuit sends out an alarm sound to remind the infant guardian, and the motor circuit sends out an alarm vibration to remind the infant guardian;

s109: and step 9: when the infant guardian receives the alarm image, the alarm sound and the alarm vibration sent by the user reminding circuit 201 of the SOS signal receiver 2, the infant guardian acts on the user feedback circuit 202, and the user feedback circuit 202 transmits a user feedback signal to the main controller 203;

s110: step 10: after the main controller 203 receives the user feedback signal transmitted by the user feedback circuit 202, the main controller 203 stops sending a reminding signal to remind the user circuit 201, and the main controller 203 sends an SOS release signal to the main wireless transmitting circuit 206;

s111: step 11: after reminding the user circuit 201 that the reminding signal sent by the main controller 203 is not received, reminding the image display circuit included in the user circuit 201 to stop sending out alarm images, the horn circuit to stop sending out alarm sound, and the motor circuit to stop sending out alarm vibration;

s112: step 12: the main wireless transmitting circuit 206 modulates and converts the SOS release signal sent by the main controller 203 into a radio signal and transmits the radio signal to the SOS signal generator 1;

s113: step 13: the SOS signal generator 1 receives the radio signal from the radio receiving circuit 105, and demodulates and converts the radio signal to obtain a released SOS signal;

s114: step 14: after the SOS release signal is transmitted from the wireless receiving circuit 105 to the slave controller 103, the slave controller 103 stops repeatedly transmitting the SOS signal to the slave wireless transmitting circuit 106.

The system and the method for preventing the baby from turning over and suffocating provided by the embodiment 1 can timely find that the baby turns over or kicks off a quilt, timely remind a baby guardian of paying attention to dangerous conditions, and avoid harm to the baby.

This embodiment 2 provides a system and a method for preventing baby from turning over and suffocating, and the structural schematic diagram of the system is shown in fig. 3. The system comprises an SOS signal generator 3 and a smartphone 4.

The SOS signal generator 3 includes: the SOS signal generator comprises a shell 301, a 2541 chip 303, a resistance strain gauge 302 connected with the 2541 chip 303, a Bluetooth transmitting circuit 306, a Bluetooth receiving circuit 305 and a battery circuit 304, wherein the battery circuit 304 supplies power for circuits in the SOS signal generator 3.

The smartphone 4 includes: the smart phone comprises a mobile phone master control 403, a display screen circuit 401, a touch screen circuit 402, a bluetooth transmitting circuit 406, a bluetooth receiving circuit 405 and a lithium battery circuit 404, wherein the display screen circuit 401, the touch screen circuit 402, the bluetooth transmitting circuit 406, the bluetooth receiving circuit 405 and the lithium battery circuit 404 are connected with the mobile phone master control 403, and the lithium battery circuit 404 supplies power to all circuits in the smart phone 4.

The SOS signal generator 3 of this embodiment 2 is used as an SOS signal generator in the monitoring system of the present invention, and the SOS signal generator 3 is a device that can be carried by a human body, so as to be convenient for reminding a baby monitor.

The smart phone 4 described in this embodiment 2 is used as an SOS signal receiver in the monitoring system of the present invention.

In this embodiment 2, the 2541 chip 303 serves as a slave controller in the monitoring system of the present invention, the 2541 chip 303 is a low power consumption bluetooth chip CC2541 provided by TI, and an RF transceiver and a standard enhanced 8051MCU are integrated in the CC 2541.

The resistance strain gauge 302 in this embodiment 2 is used as a strain gauge circuit in the monitoring system of the present invention, and the working principle of the resistance strain gauge 302 is based on the corresponding change of the resistance value of a conductor or a semiconductor material when the conductor or the semiconductor material is mechanically deformed under the action of an external force. By measuring the resistance of the resistive strain gage 302, the strain in the area covered can be calculated. The resistance strain gauge 302 is tightly fixed and attached to the housing 301 of the SOS signal generator 3 in this embodiment 2, and when the housing 301 of the SOS signal generator 3 deforms, the resistance strain gauge 302 deforms accordingly, so that the resistance of the resistance strain gauge 302 changes;

the battery circuit 304 in this embodiment 2 serves as a slave power supply circuit in the monitoring system of the present invention, and the battery circuit 304 includes a lithium battery and a DC/DC conversion circuit, where the lithium battery is a 3VDC button battery, and the DC/DC conversion circuit converts the direct current of the 3VDC button battery into 3.3VDC required by other circuits in the SOS signal generator 3;

in this embodiment 2, the mobile phone main control 403 is used as a main controller in the monitoring system of the present invention, and the mobile phone main control 403 is an ARM architecture scheme chip.

In this embodiment 2, the display circuit 401 is used as a user reminding circuit in the monitoring system of the present invention, and the display circuit 401 is a liquid crystal display. The middle display area of the display circuit 401 displays an alarm image to alert the infant guardian.

The touch screen circuit 402 of this embodiment 2 is used as a user feedback circuit in the monitoring system of the present invention, the touch screen circuit 402 is attached to the display screen circuit 401, the touch screen circuit 402 is a human-computer interaction functional circuit between the infant guardian and the smart phone 4 of this embodiment 2, and when the infant guardian receives an alarm image displayed in the middle display area of the display screen circuit 401 of the smart phone 4 of this embodiment 2, the infant guardian slides the touch screen circuit 402 to indicate that the infant guardian has received an alarm prompt of the smart phone 4;

the lithium battery circuit 404 described in this embodiment 2 is used as a main power supply circuit in the monitoring system of the present invention, and the lithium battery circuit 404 includes a lithium battery, a lithium battery charging and discharging circuit, and a DC/DC conversion circuit, where the lithium battery charging and discharging circuit uses a lithium battery power supply management chip to prevent overshoot and overdischarge of the lithium battery, and the DC/DC conversion circuit converts a lithium battery direct current into a 3.3VDC required by the mobile phone main control 403, the display screen circuit 401, the touch screen circuit 402, the bluetooth receiving circuit 405, and the bluetooth transmitting circuit 406 in the smart phone 4.

In this embodiment 2, the bluetooth transmitting circuit 306 is used as a slave wireless transmitting circuit in the monitoring system of the present invention, and the bluetooth transmitting circuit 306 employs a PCB antenna.

In this embodiment 2, the bluetooth transmitting circuit 406 is used as a main wireless transmitting circuit in the monitoring system of the present invention, and the bluetooth transmitting circuit 406 adopts a PCB antenna.

The bluetooth receiving circuit 305 described in this embodiment 2 is used as a slave wireless receiving circuit in the monitoring system of the present invention, and the bluetooth receiving circuit 305 employs a PCB antenna.

In this embodiment 2, the bluetooth receiving circuit 405 is used as a main wireless receiving circuit in the monitoring system of the present invention, and the bluetooth receiving circuit 405 adopts a PCB antenna.

The present embodiment 2 provides a system and a method for preventing infant from turning over and suffocating, the flow chart of the operation steps of the method is shown in fig. 4, and the method includes:

s201: step 1: the SOS signal generator 3 is placed below or beside the infant to be monitored, and when the infant turns over or acts, the SOS signal generator 3 is pressed, so that the shell 301 of the SOS signal generator 3 is deformed;

s202: step 2: the resistance strain gauge 302 is tightly and fixedly attached to the shell 301 of the SOS signal generator 3, when the shell 301 of the SOS signal generator 3 deforms, the resistance strain gauge 302 is stressed to change, and the resistance strain gauge 302 deforms accordingly, so that the resistance of the resistance strain gauge 302 changes;

s203: and step 3: when the resistance of the resistance strain gauge 302 changes, the monitoring signal transmitted by the resistance strain gauge 302 to the 2541 chip 303 changes;

s204: and 4, step 4: the 2541 chip 303 judges the monitoring signal transmitted by the resistance strain gauge 302, and when the monitoring signal transmitted by the resistance strain gauge 302 reaches a warning value preset by the 2541 chip 303, the 2541 chip 303 repeatedly sends an SOS signal to the Bluetooth transmitting circuit 306 at intervals;

s205: and 5: the bluetooth transmitting circuit 306 converts the SOS signal sent by the 2541 chip 303 into a radio signal and transmits the radio signal to the smart phone 4;

s206: step 6: a Bluetooth receiving circuit 405 of the smart phone 4 receives the radio signal and converts the radio signal to obtain an SOS signal;

s207: and 7: after the bluetooth receiving circuit 405 transmits the SOS signal to the mobile phone master control 403, the mobile phone master control 403 sends a reminding signal to the display screen circuit 401;

s208: and 8: after the display screen circuit 401 receives the reminding signal sent by the mobile phone main control 403, the middle display area of the display screen circuit 401 displays an alarm image to remind a baby guardian;

s209: and step 9: after the infant guardian receives the alarm image displayed in the middle display area of the display screen circuit 401 of the smart phone 4, the infant guardian slides the touch screen circuit 402 to indicate that the infant guardian has received the alarm prompt of the smart phone 4, the infant guardian acts on the touch screen circuit 402, and the touch screen circuit 402 transmits a user feedback signal to the mobile phone main control 403;

s210: step 10: after the mobile phone master control 403 receives the user feedback signal transmitted by the touch screen circuit 402, the mobile phone master control 403 stops sending the reminding signal to the display screen circuit 401, and the mobile phone master control 403 sends the SOS release signal to the bluetooth transmitting circuit 406;

s211: step 11: after the display screen circuit 401 does not receive the reminding signal sent by the mobile phone main control 403, the display screen circuit 401 stops sending out the alarm image;

s212: step 12: the bluetooth transmitting circuit 406 converts the SOS release signal sent by the main controller 403 into a radio signal and transmits the radio signal to the SOS signal generator 1;

s213: step 13: the bluetooth receiving circuit 305 of the SOS signal generator 1 receives the radio signal and converts the radio signal to obtain a SOS release signal;

s214: step 14: after the bluetooth reception circuit 305 transmits the release SOS signal to the 2541 chip 303, the 2541 chip 303 stops repeatedly transmitting the SOS signal to the bluetooth transmission circuit 306.

The system and the method for preventing the baby from turning over and suffocating provided by the embodiment 2 can find the baby turning over or kicking off a quilt in time, remind a baby guardian of paying attention to dangerous conditions in time, and avoid harm to the baby.

This embodiment 3 provides a system and a method for preventing baby from turning over and suffocating, and the structural schematic diagram of the system is shown in fig. 5. The system comprises an SOS signal generator 5 and a smart bracelet 6.

The SOS signal generator 5 includes: the SOS signal generator comprises a shell 501, a 2541 chip 503, a resistance strain gauge 502 connected with the 2541 chip 503, a Bluetooth transmitting circuit 506, a Bluetooth receiving circuit 505 and a battery circuit 504, wherein the battery circuit 504 supplies power for circuits in the SOS signal generator 5.

Intelligent bracelet 6 includes: 2541 chip 603 and the motor circuit 601, gyroscope circuit 602, bluetooth transmitting circuit 606, bluetooth receiving circuit 605, lithium cell circuit 604 that link to each other with 2541 chip 603, lithium cell circuit 604 supplies power for each part circuit in intelligent bracelet 6.

The SOS signal generator 5 of this embodiment 3 is used as an SOS signal generator in the monitoring system of the present invention, and the SOS signal generator 5 is a device that can be carried by a human body, so as to be convenient for reminding a baby monitor.

The smart band 6 of this embodiment 3 is used as an SOS signal receiver in the monitoring system of the present invention.

The 2541 chip 503 in this embodiment 3 is used as a slave controller in the monitoring system of the present invention, the 2541 chip 503 is a low power consumption bluetooth chip CC2541 introduced by TI, and an RF transceiver and a standard enhanced 8051MCU are integrated in the CC 2541.

The resistance strain gauge 502 described in this embodiment 3 is used as a strain gauge circuit in the monitoring system of the present invention, and the working principle of the resistance strain gauge 502 is based on the corresponding change of the resistance value of a conductor or a semiconductor material when the conductor or the semiconductor material is mechanically deformed under the action of an external force. By measuring the resistance of the resistive strain gage 502, the strain in the area covered can be calculated. The resistance strain gauge 502 is tightly fixed and attached to the housing 501 of the SOS signal generator 5 in this embodiment 3, and when the housing 501 of the SOS signal generator 5 deforms, the resistance strain gauge 502 deforms accordingly, so that the resistance of the resistance strain gauge 502 changes;

the battery circuit 504 of this embodiment 3 serves as a slave power circuit in the monitoring system of the present invention, and the battery circuit 504 includes a lithium battery and a DC/DC conversion circuit, where the lithium battery is a 3VDC button battery, and the DC/DC conversion circuit converts the direct current of the 3VDC button battery into 3.3VDC required by other circuits in the SOS signal generator 5;

the 2541 chip 603 in this embodiment 3 serves as a main controller in the monitoring system of the present invention, the 2541 chip 503 is a low power consumption bluetooth chip CC2541 proposed by TI, and an RF transceiver and a standard enhanced 8051MCU are integrated in the CC 2541.

The motor circuit 601 in this embodiment 3 is used as a user reminding circuit in the monitoring system of the present invention, and the motor circuit 601 is a 4 × 8mm micro vibration motor. The motor circuit 601 sends an alarm vibration to alert the infant guardian.

The gyroscope circuit 602 described in this embodiment 3 is used as a user feedback circuit in the monitoring system of the present invention, the gyroscope circuit 602 is a human-computer interaction function circuit between the infant guardian and the smart bracelet 6 described in this embodiment 3, the gyroscope circuit 602 employs an MPU-6050 chip, the MPU-6050 is an integrated 6-axis motion processing component, and can rapidly sense angular velocity and acceleration, when the infant guardian receives the alarm vibration prompt sent by the motor circuit 601 of the smart bracelet 6 described in this embodiment 3, the infant guardian shakes the smart bracelet 6, and the angular velocity and acceleration sensed by the gyroscope circuit 602 of the smart bracelet 6 change correspondingly, which indicates that the infant guardian has received the alarm vibration prompt of the smart bracelet 6;

the lithium battery circuit 604 of this embodiment 3 is used as a main power circuit in the monitoring system of the present invention, the lithium battery circuit 604 includes a lithium battery, a lithium battery charging and discharging circuit, and a DC/DC conversion circuit, the lithium battery charging and discharging circuit uses a lithium battery power management chip to prevent overshoot and overdischarge of the lithium battery, and the DC/DC conversion circuit converts direct current of the lithium battery into 3.3VDC required by the motor circuit 601, the gyroscope circuit 602, the 2541 chip 603, the bluetooth transmitting circuit 606, and the bluetooth receiving circuit 605 in the smart bracelet 6.

The bluetooth transmitting circuit 506 in this embodiment 3 is used as a slave wireless transmitting circuit in the monitoring system of the present invention, and the bluetooth transmitting circuit 506 employs a PCB antenna.

In this embodiment 3, the bluetooth transmitting circuit 606 is used as a main wireless transmitting circuit in the monitoring system of the present invention, and the bluetooth transmitting circuit 606 employs a PCB antenna.

The bluetooth receiving circuit 505 in this embodiment 3 is used as a slave wireless receiving circuit in the monitoring system of the present invention, and the bluetooth receiving circuit 505 adopts a PCB antenna.

In this embodiment 3, the bluetooth receiving circuit 605 serves as a main wireless receiving circuit in the monitoring system of the present invention, and the bluetooth receiving circuit 605 adopts a PCB antenna.

The present embodiment 3 provides a system and a method for preventing infant turn-over asphyxia, the flow chart of the operation steps of the method is shown in fig. 6, and the method includes:

s301: step 1: the SOS signal generator 5 is placed below or beside the infant to be monitored, when the infant turns over or acts, the SOS signal generator 5 is pressed, and the shell 501 of the SOS signal generator 5 is deformed;

s302: step 2: the resistance strain gauge 502 is tightly and fixedly attached to the housing 501 of the SOS signal generator 5, when the housing 501 of the SOS signal generator 5 deforms, the stress of the resistance strain gauge 502 changes, and the resistance strain gauge 502 deforms accordingly, so that the resistance of the resistance strain gauge 502 changes;

s303: and step 3: when the resistance of the resistance strain gauge 502 changes, the monitoring signal transmitted by the resistance strain gauge 502 to the 2541 chip 503 changes;

s304: and 4, step 4: the 2541 chip 503 judges the monitoring signal transmitted by the resistance strain gauge 502, and when the monitoring signal transmitted by the resistance strain gauge 502 reaches a warning value preset by the 2541 chip 503, the 2541 chip 503 repeatedly sends an SOS signal to the Bluetooth transmitting circuit 506 at intervals;

s305: and 5: the bluetooth transmitting circuit 506 converts the SOS signal sent by the 2541 chip 503 into a radio signal and transmits the radio signal to the smart band 6;

s306: step 6: the Bluetooth receiving circuit 605 of the smart bracelet 6 receives the radio signal and converts the radio signal to obtain an SOS signal;

s307: and 7: after the bluetooth receiving circuit 605 transmits the SOS signal to the 2541 chip 603, the 2541 chip 603 sends a reminding signal to the motor circuit 601;

s308: and 8: after the motor circuit 601 receives the reminding signal sent by the 2541 chip 603, the motor circuit 601 sends out alarm vibration to remind a baby guardian;

s309: and step 9: when the infant guardian receives the alarm vibration prompt of the motor circuit 601 of the intelligent bracelet 6, the infant guardian shakes the intelligent bracelet 6, the angular velocity and the acceleration sensed by the gyroscope circuit 602 of the intelligent bracelet 6 change correspondingly, which indicates that the infant guardian has received the alarm vibration prompt of the intelligent bracelet 6, the infant guardian acts on the gyroscope circuit 602, and the gyroscope circuit 602 transmits a user feedback signal to the 2541 chip 603;

s310: step 10: after the 2541 chip 603 receives the user feedback signal transmitted by the gyroscope circuit 602, the 2541 chip 603 stops sending a reminding signal to the motor circuit 601, and the 2541 chip 603 sends an SOS release signal to the Bluetooth transmitting circuit 606;

s311: step 11: after the motor circuit 601 does not receive the reminding signal sent by the 2541 chip 603, the motor circuit 601 stops sending alarm vibration;

s312: step 12: the Bluetooth transmitting circuit 606 converts the SOS release signal sent by the 2541 chip 603 into a radio signal and transmits the radio signal to the SOS signal generator 1;

s313: step 13: the Bluetooth receiving circuit 505 of the SOS signal generator 1 receives the radio signal and converts the radio signal to obtain a SOS releasing signal;

s314: step 14: after the bluetooth receiving circuit 505 transmits the release SOS signal to the 2541 chip 503, the 2541 chip 503 stops repeatedly transmitting the SOS signal to the bluetooth transmitting circuit 506.

The system and the method for preventing the baby from turning over and suffocating provided by the embodiment 3 can find the baby turning over or kicking off a quilt in time, remind a baby guardian of paying attention to dangerous conditions in time, and avoid harm to the baby.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention.

Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A system and method for preventing baby from turning over and suffocating is characterized in that the system comprises an SOS signal generator and an SOS signal receiver;

the SOS signal generator and the SOS signal receiver are devices which can be carried by a human body, so that the baby guardian can be reminded conveniently;

the slave controller and the master controller are integrated circuit chips;

the strain gauge circuit comprises a strain gauge, the strain gauge is tightly and fixedly attached to the housing of the SOS signal generator, and when the housing of the SOS signal generator deforms, the stress of the strain gauge changes, and the strain gauge deforms accordingly, so that the resistance of the strain gauge changes;

the slave power supply circuit and the master power supply circuit are voltage conversion circuits;

a system and method for preventing asphyxiation of an infant during turning over, the method comprising the steps of:

step 11: after the user circuit is reminded of not receiving the reminding signal sent by the main controller, the image display circuit stops sending alarm images, the horn circuit stops sending alarm sounds, and the motor circuit stops sending alarm vibration;