CN110897428A - Intelligent crib and monitoring method thereof - Google Patents
Intelligent crib and monitoring method thereof Download PDFInfo
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- CN110897428A CN110897428A CN201911206684.XA CN201911206684A CN110897428A CN 110897428 A CN110897428 A CN 110897428A CN 201911206684 A CN201911206684 A CN 201911206684A CN 110897428 A CN110897428 A CN 110897428A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000005484 gravity Effects 0.000 claims abstract description 115
- 230000002159 abnormal effect Effects 0.000 claims abstract description 47
- 238000004891 communication Methods 0.000 claims abstract description 14
- 230000004044 response Effects 0.000 claims abstract description 6
- 206010011469 Crying Diseases 0.000 claims description 31
- 235000003642 hunger Nutrition 0.000 claims description 9
- 206010041349 Somnolence Diseases 0.000 claims description 8
- 230000001133 acceleration Effects 0.000 claims description 7
- 210000002700 urine Anatomy 0.000 claims description 7
- 238000009736 wetting Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 4
- 238000007781 pre-processing Methods 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 230000007958 sleep Effects 0.000 description 2
- 208000032140 Sleepiness Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000000147 hypnotic effect Effects 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000037321 sleepiness Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47D—FURNITURE SPECIALLY ADAPTED FOR CHILDREN
- A47D9/00—Cradles ; Bassinets
- A47D9/02—Cradles ; Bassinets with rocking mechanisms
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47D—FURNITURE SPECIALLY ADAPTED FOR CHILDREN
- A47D15/00—Accessories for children's furniture, e.g. safety belts or baby-bottle holders
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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Abstract
The invention discloses an intelligent crib and a monitoring method thereof, wherein the intelligent crib comprises a bedstead and a sleeping basket capable of swinging relative to the bedstead, the sleeping basket is provided with an inner bottom wall and an inner side wall connected with the inner bottom wall, and the intelligent crib further comprises: the device comprises a main control module, an acquisition module, a communication module and a pacifying device; the collection module includes sound sensor, humidity transducer and pressure sensor, and host system, communication module and pacify the device and all set up on the bedstead, collection module, communication module and pacify the device all with host system electric connection. The monitoring method comprises the following steps: acquiring state information of an infant, wherein the state information of the infant comprises sound information, gravity information and humidity information; judging whether the state of the baby is abnormal or not according to the state information of the baby; and starting the pacifying device in response to the abnormal state of the infant, and simultaneously sending the abnormal state of the infant to the user terminal. The scheme of the invention can monitor the state of the baby at any time and remind a caregiver to nurse the baby in time.
Description
Technical Field
The invention relates to the technical field of children products, in particular to an intelligent crib and a monitoring method thereof.
Background
In 2018, the number of newborn babies in China gradually becomes a stable situation after a two-birth policy is fully opened, and the gradually-improved consumption level of people stimulates the mother-baby market to a certain extent, particularly a crib, and even has a situation of promoting the upgrading and development of the crib.
After the baby is born, parents need to invest a lot of time and energy to take care of the baby, but after all, the parents have limited energy, cannot take care of the baby ceaselessly, need a certain time to rest, and especially the baby often cries and screels, needs adults to know the state of the baby (hunger, wet urine and the like) in time and pacify the baby. If the infant crying caused by hunger and wetting, the current infant monitoring device usually adopts a camera to collect images inside the crib and wirelessly transmits the images to a mobile terminal or a PC (personal computer) end for remote work, and the infant monitoring device has no function of intelligently analyzing and judging the infant state and is unreasonable in structural arrangement.
Disclosure of Invention
In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide an intelligent crib and monitoring method.
In a first aspect, the present invention provides an intelligent infant bed, including a bed frame, a sleeping basket mounted on the bed frame and capable of swinging relative to the bed frame, the sleeping basket having an inner bottom wall and an inner side wall connected to the inner bottom wall, and further including: the device comprises a main control module, an acquisition module, a communication module and a pacifying device;
the acquisition module comprises a sound sensor arranged on the inner side wall, a humidity sensor arranged on the inner bottom wall and a pressure sensor arranged on the inner bottom wall, the main control module, the communication module and the pacifying device are all arranged on the bedstead, and the acquisition module, the communication module and the pacifying device are all electrically connected with the main control module;
two groups of pressure sensors are transversely distributed on the inner bottom wall of the sleeping basket, and each group of pressure sensors comprises at least two pressure sensors which are longitudinally distributed along the inner bottom wall.
Preferably, the pacifying device comprises a motor and an audio playing device, the motor is used for driving the sleeping basket to swing, and the motor and the audio playing device are electrically connected with the main control module.
In a second aspect, the present invention provides a monitoring method for an intelligent baby crib, including:
acquiring state information of an infant, wherein the state information of the infant comprises sound information, gravity information and humidity information;
judging whether the state of the infant is abnormal or not according to the state information of the infant;
and starting the pacifying device in response to the abnormal state of the infant, and simultaneously sending the abnormal state of the infant to a user terminal.
Preferably, the judging whether the state of the infant is abnormal includes:
a. c, judging whether the baby cries, if so, performing the step b, and otherwise, performing the step c;
b. judging whether the gravity fluctuates and the baby is wet, and if the gravity fluctuates and/or the baby is wet, determining that the state of the baby is abnormal;
c. d, judging whether the baby is wet, if so, performing the step d, and otherwise, performing the step e;
d. judging whether the gravity fluctuates or not, and determining that the state of the infant is abnormal;
e. and judging whether the gravity is suddenly reduced or not, and if so, determining that the state of the infant is abnormal.
Preferably, the determining whether the infant crying comprises:
preprocessing the sound information and extracting sound characteristic data;
comparing the sound characteristic data with a corresponding preset threshold value to obtain a preliminary judgment result;
according to the weight value pre-configured for each sound feature, carrying out weighting processing on the preliminary judgment result corresponding to each sound feature, judging whether the weighting result is larger than a preset crying threshold value, and if so, determining that the infant cryes; wherein,
the sound features include one or more of: decibel, frequency, energy in short time, maximum acceleration of energy in short time, and zero crossing rate.
Preferably, after the determination that the infant is crying, the monitoring method further comprises:
determining the frequency distribution of the sound information, and determining the crying state of the infant according to the frequency distribution of the sound information, wherein the crying state of the infant comprises one of the following states: drowsiness, delightful feeling, hunger, difficulty in passing, and engendering qi.
Preferably, the judging whether the gravity fluctuates includes: judging whether the gravity information of each pressure sensor is within a preset first gravity threshold and a preset second gravity threshold, and if so, determining gravity fluctuation;
the judging whether the gravity is suddenly reduced comprises: judging whether the gravity information of each pressure sensor is smaller than a preset third gravity threshold, and if so, determining that the gravity suddenly decreases;
wherein the third gravity threshold is less than the first gravity threshold, and the predicted gravity is between the first gravity threshold and the second gravity threshold.
Preferably, after the determining the gravity fluctuation, the monitoring method further includes:
determining a change trend of gravity information of two groups of the pressure sensors relative to the predicted gravity based on the predicted gravity;
if the gravity information of each pressure sensor is larger relative to the predicted gravity, determining that the baby bounces the leg;
and if the gravity information of one group of pressure sensors is all larger relative to the predicted gravity and the gravity information of the other group of pressure sensors is all smaller relative to the predicted gravity, determining that the baby turns over.
Preferably, the acquiring the state information of the infant, and the determining the state of the infant according to the state information of the infant includes:
acquiring the humidity information;
and judging whether the humidity information is larger than a preset humidity threshold value or not, and if so, determining that the baby is wet by urine.
Preferably, the abnormal state of the infant comprises one of:
crying and fluctuating gravity of the infant;
crying and wetting of the infant;
the baby urinates wet and the baby gravity fluctuates;
sudden gravity reduction of the infant;
wherein the crying of the infant comprises any one of: drowsiness of the baby, baby carelessness, hunger of the baby, difficulty in passing of the baby, and baby anger;
the baby gravity wave comprises baby leg bouncing or baby turning.
Preferably, said activating said pacifying means in response to said infant abnormal condition comprises:
the motor is started to drive the sleeping basket to swing relative to the bed frame, and/or the audio playing device is started.
According to the technical scheme provided by the embodiment of the invention, whether the state of the infant is abnormal or not is judged through crying monitoring, urine wetting monitoring and weight monitoring, if the state of the infant is abnormal, a soothing mode is determined according to the abnormal state of the infant, and the abnormal state of the infant is sent to the user terminal. The scheme can monitor the state of the baby at any time and remind a caregiver to nurse the baby in time.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
fig. 1 is a schematic structural diagram of an intelligent crib according to an embodiment of the present invention;
FIG. 2 is a schematic view of the inside of a sleeping basket of an intelligent infant bed according to an embodiment of the present invention;
fig. 3 is a flowchart of a monitoring method of an intelligent crib according to an embodiment of the present invention;
FIG. 4 is a logic diagram of step 20 of FIG. 3 according to an embodiment of the present invention;
FIG. 5 is a flowchart illustrating an exemplary embodiment of the present disclosure for determining whether an infant is crying based on sound information;
fig. 6 is a flowchart illustrating a method for determining a crying state of an infant according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 and 2, an embodiment of the present invention provides an intelligent infant bed, including a bed frame 1, a sleeping basket 2 capable of swinging relative to the bed frame is installed on the bed frame, the sleeping basket 2 has an inner bottom wall 3 and an inner side wall 4 connected to the inner bottom wall 3, and further includes: the device comprises a main control module, an acquisition module, a communication module and a pacifying device;
the acquisition module comprises a sound sensor 5 arranged on the inner side wall 4, a humidity sensor 6 arranged on the inner bottom wall 3 and a pressure sensor 7 arranged on the inner bottom wall 3, the main control module, the communication module and the pacifying device are all arranged on the bedstead, and the acquisition module, the communication module and the pacifying device are all electrically connected with the main control module;
two groups of pressure sensors are transversely distributed on the inner bottom wall 3 of the sleeping basket, and each group of pressure sensors comprises at least two pressure sensors which are longitudinally distributed along the inner bottom wall 3.
The baby sleeping mattress comprises a sound sensor, a humidity sensor, a pressure sensor and a controller, wherein the sound sensor is used for collecting sound information, the humidity sensor is used for collecting humidity information under a baby sleeping mattress, and the pressure sensor is used for collecting gravity information of a baby;
the main control module judges whether the infant cries and judges the crying state (sleepiness, cozy spreading, hunger, difficulty or angry) of the infant according to the sound information, judges whether the infant is wet according to the humidity information, judges whether the infant is in the state of sleeping, turning over or bouncing legs according to the gravity information and judges whether the infant is stolen according to the gravity information;
the pacifying device pacifies the infant according to the abnormal state of the infant.
Further, pacify the device including being used for driving the motor and the audio playback device that the basket swayd, motor and audio playback device all with host system electric connection. For example, the motor works to drive the sleeping basket to swing relative to the bed frame, and meanwhile, the audio playing device plays soft and relaxed audio, and the baby is pacified with soft and relaxed music by swinging the sleeping basket.
Further, the intelligent crib provided by the embodiment further comprises a timing module electrically connected with the main control module, and the pacifying time can be set to be two to five minutes, so that the baby can be effectively pacified in time.
Further, the communication module in this embodiment may be a wireless communication module, such as a wifi module, and the abnormal state of the infant determined by the main control module of the crib is sent to a remote user terminal (e.g., a mobile phone or a tablet computer of a caregiver) through the wifi module.
As shown in fig. 3, an embodiment of the present invention further provides a monitoring method for an intelligent crib, including:
step S10, acquiring baby state information, wherein the baby state information comprises sound information, gravity information and humidity information;
step S20, judging whether the state of the baby is abnormal or not according to the state information of the baby;
and step S30, responding to the abnormal state of the infant, starting the pacifying device, and simultaneously sending the abnormal state of the infant to the user terminal.
By the method, the state of the baby can be determined, whether the state of the baby is abnormal or not is judged, the baby is pacified in time, and meanwhile the abnormal state of the baby is sent to the user terminal (such as a mobile phone or a tablet personal computer of a caregiver) to remind the caregiver to take care of the baby in time.
In some examples, referring to fig. 4, the step S20 of determining whether the state of the infant is abnormal includes:
a. c, judging whether the baby cries, if so, performing the step b, and otherwise, performing the step c;
b. judging whether the gravity fluctuates and the baby is wet, and if the gravity fluctuates and/or the baby is wet, determining that the state of the baby is abnormal;
c. d, judging whether the baby is wet, if so, performing the step d, and otherwise, performing the step e;
d. judging whether the gravity fluctuates or not, and determining that the state of the infant is abnormal;
e. and judging whether the gravity is suddenly reduced or not, and if so, determining that the state of the infant is abnormal.
According to the embodiment of the invention, the state of the infant is determined according to the sequence of crying judgment, urine wetting judgment and gravity judgment, so that whether the state of the infant is abnormal or not is accurately judged, terminal reminding is carried out in time, and the infant is pacified according to the abnormal state of the infant.
In some examples, as shown in fig. 5, determining whether the infant cries includes:
step S201, preprocessing sound information and extracting sound characteristic data;
step S202, comparing the sound characteristic data with a corresponding preset threshold value to obtain a preliminary judgment result;
step S203, according to the weight value pre-configured for each sound feature, carrying out weighting processing on the preliminary judgment result corresponding to each sound feature, judging whether the weighting result is larger than a preset crying threshold value, and if so, determining that the baby cryes; wherein,
the sound characteristics include one or more of: decibel, frequency, energy in short time, maximum acceleration of energy in short time, and zero crossing rate.
In this embodiment, whether the infant cries or not is comprehensively judged according to the plurality of sound characteristics, and thus more reliable judgment is realized.
Wherein, the preprocessing the sound information may include: filtering and smoothing the sound information to remove noise;
then, respectively judging whether the infant cries according to decibels, frequencies, short-time energies, maximum short-time energy accelerations and zero crossing rates to obtain preliminary judgment results corresponding to all sound characteristics, wherein the preliminary judgment results are expressed by digitalization 1 and 0, for example, 1 represents that the infant cries, 0 represents that the infant does not cry, and the preliminary judgment results corresponding to judging whether the infant cries according to decibels, frequencies, short-time energies, maximum short-time energy accelerations and zero crossing rates are 1, 0 and 1 respectively;
then, when the predetermined weight (or coefficient) of each sound feature, such as decibel, frequency, energy at short time, maximum acceleration of energy at short time, and zero-crossing rate, is 20%, 30%, 20%, 10%, 20%, the predetermined weight (or coefficient) of each sound feature, such as decibel, frequency, energy at short time, maximum acceleration of energy at short time, and zero-crossing rate is 20%, 30%, 20%, 10%, 20%, 1x 20% +1x 30% +1x 20% +0x 10% +1x 20%, is 0.9 by weight calculation, and exceeds a preset crying threshold of 0.8, the infant is determined to cry.
Further, after determining that the infant cries, a further determination may be made as to the state at which the infant cries, the embodiment providing the monitoring method further comprising:
step S204, determining the frequency distribution of the sound information, and determining the crying state of the infant according to the frequency distribution of the sound information, wherein the crying state of the infant comprises one of the following states: drowsiness, delightful feeling, hunger, difficulty in passing, and engendering qi.
For example, the sound frequency is about 400Hz, which indicates that the baby is drowsy; the sound frequency is between 400Hz and 600Hz, which indicates that the baby is lovely; the sound frequency is between 600Hz and 800Hz, which indicates that the baby is hungry; the sound frequency is between 800Hz and 1000Hz, which indicates that the baby is difficult to pass; the sound frequency exceeds 1000Hz, which indicates that the baby generates qi. When the infant crying is determined, the state of the infant when crying can be further determined by combining the frequency distribution, so that a caretaker can know the reason why the infant crying conveniently.
In some examples, determining whether gravity fluctuates comprises:
judging whether the gravity information of each pressure sensor is within a preset first gravity threshold and a preset second gravity threshold, and if so, determining gravity fluctuation;
determining whether the gravity is suddenly reduced comprises:
judging whether the gravity information is smaller than a preset third gravity threshold value or not, and if so, determining that the gravity suddenly decreases;
wherein the third gravity threshold is less than the first gravity threshold, and the predicted gravity is between the first gravity threshold and the second gravity threshold.
The pressure sensors 7 are uniformly distributed in a dotted manner on the inner bottom wall of the sleep basket, and referring to fig. 2, two groups of pressure sensors are distributed in the transverse direction, and each group of pressure sensors comprises two pressure sensors distributed in the longitudinal direction. When the baby sleeps, the pressure sensor is uniformly stressed, and the gravity value of the baby during sleeping is measured to be used as the predicted gravity. If the gravity information of each pressure sensor is lower than a preset third gravity threshold, determining that the gravity is suddenly reduced, so that the risk of stealing the infant exists, transmitting the condition to a remote user terminal, and facilitating a caregiver to check whether the infant is in the sleeping basket in time; if the gravity information of each pressure sensor is within the preset first gravity threshold and the preset second gravity threshold, the infant can be determined to be in the sleeping basket.
Further, after determining the gravity fluctuation, the monitoring method further comprises:
determining the change trend of the gravity information of the two groups of pressure sensors relative to the predicted gravity based on the predicted gravity;
if the gravity information of each pressure sensor is larger relative to the predicted gravity, determining that the baby bounces the leg;
and if the gravity information of one group of pressure sensors is larger relative to the predicted gravity and the gravity information of the other group of pressure sensors is smaller relative to the predicted gravity, determining that the baby turns over.
The change trend of the gravity information of the two groups of pressure sensors relative to the predicted gravity is used for further judging whether the baby is in a leg bouncing state or a turning-over state, so that a caregiver can be timely and accurately reminded.
In some examples, determining whether the infant is wet includes:
and judging whether the humidity information is larger than a preset humidity threshold value, and if so, determining that the baby is wet by urine.
The following states can be judged through the sound information, the gravity information and the humidity information:
if the infant cry, the infant is drowsy, lovely, hungry, difficult or angry;
the baby is in a state of sleeping, turning over, leg bouncing or being stolen; and the number of the first and second groups,
whether the baby is wet.
In some examples, the abnormal state of the infant includes one of:
crying and fluctuating gravity of the infant;
crying and wetting of the infant;
the baby urinates wet and the baby gravity fluctuates;
sudden gravity reduction of the infant;
wherein crying of the infant includes any one of: drowsiness of the baby, baby carelessness, hunger of the baby, difficulty in passing of the baby, and baby anger;
infant gravitational fluctuations include infant leg flicking or infant rolling.
If the state of the baby is any one of the states, determining that the baby state is abnormal, and sending the abnormal state of the baby to the user terminal to remind a caregiver to nurse the baby in time.
In some examples, activating the pacifying device in response to the infant abnormal state includes:
starting a motor to drive the sleeping basket to swing relative to the bed frame and/or starting an audio playing device;
and stopping the pacifying action when the pacifying duration reaches the preset pacifying duration.
In this embodiment, a soothing manner is determined according to the abnormal state of the infant to sooth the infant.
For example, if the baby is sleepy (or the baby is lovely), and the baby bounces off the legs (or the baby turns over), the cradle swings at the first rotating speed and the first reciprocating amplitude under the driving of the motor, and the audio playing device plays hypnotic music to help the baby calm down;
for another example, if the infant is hungry (or the infant is difficult to pass, or the infant is angry), and the infant bounces (or the infant turns over), the sleeping basket swings at a second rotating speed and a second reciprocating amplitude under the driving of the motor, the second rotating speed is less than the first rotating speed, and the second reciprocating amplitude is less than the first reciprocating amplitude, so that the infant is pacified;
if the gravity of the baby suddenly decreases, the audio playing device sends out a prompt sound for calling for help.
According to the monitoring method of the intelligent crib, whether the state of the infant is abnormal or not is judged through crying monitoring, urine wetness monitoring and weight monitoring, if the state of the infant is abnormal, a soothing mode is determined according to the abnormal state of the infant, the abnormal state of the infant is sent to the user terminal to inform a caregiver of nursing the infant in time, the caregiver can be relaxed to a certain degree, and the state of the infant can be monitored at any time.
The foregoing description is only exemplary of the preferred embodiments of the invention and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention is not limited to the specific combination of the above-mentioned features, but also encompasses other embodiments in which any combination of the above-mentioned features or their equivalents is possible without departing from the inventive concept. For example, the above features and (but not limited to) features having similar functions disclosed in the present invention are mutually replaced to form the technical solution.
Claims (11)
1. The utility model provides an intelligence crib, includes the bedstead, install on the bedstead and can be relatively the sleeping basket that the bedstead swayd, sleeping basket have interior diapire and with the inside wall that interior diapire links to each other, its characterized in that still includes: the device comprises a main control module, an acquisition module, a communication module and a pacifying device;
the acquisition module comprises a sound sensor arranged on the inner side wall, a humidity sensor arranged on the inner bottom wall and a pressure sensor arranged on the inner bottom wall, the main control module, the communication module and the pacifying device are all arranged on the bedstead, and the acquisition module, the communication module and the pacifying device are all electrically connected with the main control module;
two groups of pressure sensors are transversely distributed on the inner bottom wall of the sleeping basket, and each group of pressure sensors comprises at least two pressure sensors which are longitudinally distributed along the inner bottom wall.
2. The intelligent infant bed of claim 1, wherein the pacifying device comprises a motor for driving the sleeping basket to swing and an audio playing device, and both the motor and the audio playing device are electrically connected to the main control module.
3. A monitoring method of an intelligent baby crib is characterized by comprising the following steps:
acquiring state information of an infant, wherein the state information of the infant comprises sound information, gravity information and humidity information;
judging whether the state of the infant is abnormal or not according to the state information of the infant;
and starting the pacifying device in response to the abnormal state of the infant, and simultaneously sending the abnormal state of the infant to a user terminal.
4. The monitoring method of an intelligent infant bed according to claim 3, wherein the judging whether the state of the infant is abnormal includes:
a. c, judging whether the baby cries, if so, performing the step b, and otherwise, performing the step c;
b. judging whether the gravity fluctuates and the baby is wet, and if the gravity fluctuates and/or the baby is wet, determining that the state of the baby is abnormal;
c. d, judging whether the baby is wet, if so, performing the step d, and otherwise, performing the step e;
d. judging whether the gravity fluctuates or not, and determining that the state of the infant is abnormal;
e. and judging whether the gravity is suddenly reduced or not, and if so, determining that the state of the infant is abnormal.
5. The method of claim 4, wherein the determining whether the infant cries comprises:
preprocessing the sound information and extracting sound characteristic data;
comparing the sound characteristic data with a corresponding preset threshold value to obtain a preliminary judgment result;
according to the weight value pre-configured for each sound feature, carrying out weighting processing on the preliminary judgment result corresponding to each sound feature, judging whether the weighting result is larger than a preset crying threshold value, and if so, determining that the infant cryes; wherein,
the sound features include one or more of: decibel, frequency, energy in short time, maximum acceleration of energy in short time, and zero crossing rate.
6. The method of monitoring an intelligent crib of claim 5, wherein after the determination that the infant cries, the method of monitoring further comprises:
determining the frequency distribution of the sound information, and determining the crying state of the infant according to the frequency distribution of the sound information, wherein the crying state of the infant comprises one of the following states: drowsiness, delightful feeling, hunger, difficulty in passing, and engendering qi.
7. The monitoring method of an intelligent infant bed according to claim 4, wherein the judging whether gravity fluctuates comprises: judging whether the gravity information of each pressure sensor is within a preset first gravity threshold and a preset second gravity threshold, and if so, determining gravity fluctuation;
the judging whether the gravity is suddenly reduced comprises: judging whether the gravity information of each pressure sensor is smaller than a preset third gravity threshold, and if so, determining that the gravity suddenly decreases;
wherein the third gravity threshold is less than the first gravity threshold, and the predicted gravity is between the first gravity threshold and the second gravity threshold.
8. The monitoring method of an intelligent crib as claimed in claim 7, wherein after the determining the fluctuation in gravity, the monitoring method further comprises:
determining a change trend of gravity information of two groups of the pressure sensors relative to the predicted gravity based on the predicted gravity;
if the gravity information of each pressure sensor is larger relative to the predicted gravity, determining that the baby bounces the leg;
and if the gravity information of one group of pressure sensors is all larger relative to the predicted gravity and the gravity information of the other group of pressure sensors is all smaller relative to the predicted gravity, determining that the baby turns over.
9. The monitoring method of an intelligent infant bed according to claim 4, wherein the judging whether the infant is wet includes:
and judging whether the humidity information is larger than a preset humidity threshold value or not, and if so, determining that the baby is wet by urine.
10. The monitoring method of an intelligent infant bed according to any one of claims 3 to 9, wherein the abnormal state of the infant includes one of:
crying and fluctuating gravity of the infant;
crying and wetting of the infant;
the baby urinates wet and the baby gravity fluctuates;
sudden gravity reduction of the infant;
wherein the crying of the infant comprises any one of: drowsiness of the baby, baby carelessness, hunger of the baby, difficulty in passing of the baby, and baby anger;
the baby gravity wave comprises baby leg bouncing or baby turning.
11. The monitoring method of an intelligent crib as claimed in claim 3, wherein said activating the pacifying device in response to the baby abnormal state comprises:
the motor is started to drive the sleeping basket to swing relative to the bed frame, and/or the audio playing device is started.
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| CN (1) | CN110897428A (en) |
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| CN111602994A (en) * | 2020-05-27 | 2020-09-01 | 西安工业大学 | Multifunctional crib and control method thereof |
| CN111728426A (en) * | 2020-06-30 | 2020-10-02 | 徐忠敏 | Intelligent baby crib |
| CN112037482A (en) * | 2020-08-31 | 2020-12-04 | 张建春 | Baby intelligence system of nursing at night |
| CN113017337A (en) * | 2021-03-30 | 2021-06-25 | 复旦大学 | Intelligent baby bed trolley |
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| CN113017337A (en) * | 2021-03-30 | 2021-06-25 | 复旦大学 | Intelligent baby bed trolley |
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