CN116001717A - In-car infant monitoring system and method - Google Patents
In-car infant monitoring system and method Download PDFInfo
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- CN116001717A CN116001717A CN202211719407.0A CN202211719407A CN116001717A CN 116001717 A CN116001717 A CN 116001717A CN 202211719407 A CN202211719407 A CN 202211719407A CN 116001717 A CN116001717 A CN 116001717A
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- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000012544 monitoring process Methods 0.000 title claims abstract description 38
- 238000001514 detection method Methods 0.000 claims abstract description 73
- 230000036760 body temperature Effects 0.000 claims description 38
- 230000000694 effects Effects 0.000 claims description 31
- 206010011469 Crying Diseases 0.000 claims description 26
- 230000035565 breathing frequency Effects 0.000 claims description 15
- 230000001133 acceleration Effects 0.000 claims description 12
- 230000006855 networking Effects 0.000 claims description 3
- 230000008451 emotion Effects 0.000 abstract description 7
- 230000006872 improvement Effects 0.000 description 10
- 238000004378 air conditioning Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 4
- 230000002996 emotional effect Effects 0.000 description 3
- 238000011900 installation process Methods 0.000 description 3
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- 230000036387 respiratory rate Effects 0.000 description 3
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Abstract
The invention relates to the technical field of automobile electronics, in particular to an in-car infant monitoring system and method; the system specifically comprises a baby wearable device, a signal connection module, a detection module and an audio library, wherein the signal connection module, the detection module and the audio library are arranged in a vehicle central control system; the baby wearable device comprises a body, a wireless connection module and a sound sensor, wherein the wireless connection module and the sound sensor are arranged on the body; the wireless connection module is used for being in wireless connection with the vehicle central control system; the signal connection module is used for sending connection success information to the detection module when the wireless connection module is in a wireless connection state with the vehicle central control system; the audio library is used for storing standard sound information; the detection module is used for controlling the sound sensor to acquire sound information of the baby after receiving the connection success information, obtaining detection information according to the sound information of the baby, comparing the detection information with the standard sound information, and obtaining baby state information according to a comparison result so as to determine the emotion state of the baby.
Description
Technical Field
The invention relates to the technical field of automobile electronics, in particular to an in-car infant monitoring system and method.
Background
With the increase of automobiles, the safety problem of infants riding in automobiles is getting more and more attention; when the driver independently takes the baby out and needs to stay on the automobile safety seat for a long time, the driver cannot timely determine the emotion state of the baby and cannot timely take care of the baby according to the emotion state of the baby when the driver drives the automobile or the driver needs to independently leave the automobile and needs to stay on the automobile safety seat; at this time, if the infant is in an unstable emotion or uncomfortable body, not only the safety of the infant on the automobile is affected, but also the driving of the driver may be indirectly affected, and even the safe driving of the vehicle may be affected.
In order to solve the above problems, the in-car infant monitoring system has been developed, but the existing in-car infant monitoring system generally needs to install various sensors and electronic devices in the car (for example, install pressure sensors on the driver's seat and the infant safety seat, install audio/video sensors and other electronic devices in the car, etc.), and in the process of installing, the improvement of the in-car circuit system is involved, and there are problems of complex installation and improvement work, labor consumption and high cost.
Disclosure of Invention
The invention provides an in-car infant monitoring system and method, which solve the problems that various sensors and electronic equipment (such as a pressure sensor, an audio/video sensor, other electronic equipment and the like are additionally arranged on a driver seat and an infant safety seat) are additionally arranged in a car in the existing in-car infant monitoring system, and the improvement of an in-car circuit system is involved in the additional arrangement process, so that the problems of complex installation and improvement work, labor consumption and high cost exist.
The technical scheme adopted by the invention is as follows: an in-car infant monitoring system comprises infant wearable equipment, a signal connection module, a detection module and an audio library, wherein the signal connection module, the detection module and the audio library are arranged in a vehicle central control system;
the baby wearable device comprises a body, a wireless connection module and a sound sensor, wherein the wireless connection module and the sound sensor are arranged on the body; the wireless connection module is used for being in wireless connection with the vehicle central control system;
the signal connection module is used for monitoring the connection state of the wireless connection module and the vehicle central control system; sending connection success information to the detection module when the connection state is monitored;
the audio library is used for storing standard sound information;
the detection module is used for controlling the sound sensor to acquire the sound information of the baby after receiving the connection success information, obtaining detection information according to the sound information of the baby, comparing the detection information with the standard sound information, and obtaining the status information of the baby according to a comparison result.
According to the technical scheme, the wireless connection state of the infant wearable equipment and the vehicle central control system is monitored by the signal connection module, so that whether an infant gets on a vehicle or not can be judged; if the infant is judged to get on the bus, the detection module controls the sound sensor to acquire infant sound information, obtains detection information according to the infant sound information, compares the detection information with the standard sound information, and obtains infant status information according to a comparison result;
through the technical scheme, the information interaction between the infant wearable equipment and the in-car central control system can be realized, whether the infant gets on the car or not is judged, and the emotional state of the infant is determined in real time; the infant wearable equipment is only required to be configured without modifying in-vehicle hardware, and the in-vehicle central control system is correspondingly upgraded; the system solves the problems that the existing in-car infant monitoring system is usually required to be additionally provided with various sensors and electronic equipment (for example, a pressure sensor is additionally arranged on a driver seat and an infant safety seat, an audio and video sensor and other electronic equipment are additionally arranged in the car), the improvement of an in-car circuit system is involved in the additional installation process, and the problems of complex installation and improvement work, high consumption and high cost exist.
The wireless connection module is wirelessly connected with the vehicle central control system in a plurality of modes, including but not limited to: bluetooth connection, vehicle-mounted WIFI connection and the like.
Further, the in-vehicle infant monitoring system further comprises a control module arranged in the vehicle central control system;
the detection module is also used for sending the infant status information to the control module;
the control module is used for controlling the vehicle to enter a corresponding baby care mode according to the baby state information and controlling a target functional component in the vehicle to execute a function corresponding to the baby care mode which the vehicle enters;
the infant care modes include a happy mode, a crying mode, and a calm mode.
The control module is arranged to enable the control module to control the vehicle to enter a corresponding baby care mode according to the baby state information, and control a target functional component in the vehicle to execute a function corresponding to the baby care mode entered by the vehicle; the in-car infant monitoring system can be used for monitoring the in-car infant.
Further, the infant wearable device further comprises a galvanic skin activity sensor, a heart rate sensor and a temperature sensor disposed on the body;
the skin electric activity sensor is used for acquiring and transmitting infant pressure information to the control module;
the heart rate sensor is used for acquiring and transmitting infant heart rate information to the control module;
the temperature sensor is used for acquiring and transmitting infant body temperature information to the control module;
the control module is also used for controlling a target functional component in the vehicle to execute the crying mode according to the received infant pressure information, infant heart rate information and infant body temperature information.
By arranging the skin electric activity sensor, the heart rate sensor and the temperature sensor, the control module can monitor the emotion pressure state, the heart rate state and the body temperature state of the infant when the infant is in a crying state; and controls the target functional components in the vehicle to take corresponding care of the baby.
Further, the infant wearable device further comprises a bioimpedance sensor and a triaxial acceleration sensor arranged on the body;
the biological impedance sensor is used for acquiring and transmitting infant breathing frequency information to the control module;
the triaxial acceleration sensor is used for acquiring and transmitting infant activity information to the control module;
the calm mode includes a sleep sub-mode;
the control module is further configured to determine, when the vehicle is in the calm mode, whether the infant care mode is shifted to the sleep sub-mode according to the received infant breathing frequency information and the infant activity information; and after judging that the infant care mode is shifted into the sleep sub-mode, controlling a target functional component in the vehicle to execute the sleep sub-mode.
By arranging the bioimpedance sensor and the triaxial acceleration sensor, the control module can monitor the breathing frequency and the activity state of the infant when the infant is in a calm state; and judging whether the infant care mode is switched into the sleep sub-mode or not according to the respiratory rate and the activity state of the infant (namely judging whether the infant is in the sleep state), after judging that the infant care mode is switched into the sleep sub-mode (namely after judging that the infant is in the sleep state), controlling a target functional component in the vehicle to carry out corresponding care on the infant.
Further, the body comprises a bracelet, a watch, a foot ring or a necklace.
Based on the in-car infant monitoring system provided by the invention, the invention also provides an in-car infant monitoring method, which comprises the following steps:
the method comprises the steps of monitoring the connection state of a wireless connection module and a vehicle central control system by using a signal connection module, and sending connection success information to a detection module when the connection state is monitored;
the detection module detects whether connection success information is received or not; if the connection success information is detected to be received, controlling the sound sensor to acquire the sound information of the infant;
the detection module obtains detection information according to the acquired infant sound information, compares the detection information with standard sound information stored in an audio library, and obtains infant status information according to a comparison result.
Further, the specific method for obtaining the detection information by the detection module according to the collected sound information of the infant comprises the following steps:
step 1: detecting the end point of the infant sound information, and determining the starting point and the end point of the infant sound information;
step 2: extracting MFCC characteristic parameters of the infant sound information through short-time analysis;
step 3: and obtaining the detection information according to the MFCC characteristic parameters.
Further, the method for comparing the detection information with the standard sound information stored in the audio library and obtaining the infant status information according to the comparison result comprises the following steps:
the standard sound information comprises a happy template, a crying template and a calm template;
and comparing the detection information with the happy template, the crying template and the calm template by adopting a DTW algorithm, and obtaining the infant status information according to the template with the highest similarity with the detection information in the happy template, the crying template and the calm template.
Further, after the infant status information is obtained, the detection module sends the infant status information to the control module;
the control module controls the working mode of the vehicle to enter a corresponding baby care mode according to the received baby state information, and controls a target functional component in the vehicle to execute a function corresponding to the baby care mode entered by the vehicle;
the infant care modes include a happy mode, a crying mode, and a calm mode.
Further, the method for executing the function corresponding to the crying mode by the control module comprises the following steps: the control module controls a player of the vehicle to play preset audio or video;
the control module collects infant pressure information through a skin electric activity sensor, collects infant heart rate information through a heart rate sensor, collects infant body temperature information through a temperature sensor, and monitors the infant pressure information, the infant heart rate information and the infant body temperature information;
if the control module detects that the current pressure value of the infant exceeds the preset pressure value through the acquired infant pressure information, or the control module detects that the current heart rate value of the infant is not in the preset heart rate range through the acquired infant heart rate information, or the control module detects that the current body temperature value of the infant is not in the preset body temperature range through the acquired infant body temperature information, the control module controls a networking system of a vehicle to send alarm information to a user terminal.
Further, the method for executing the function corresponding to the crying mode by the control module further comprises: if the control module detects that the current body temperature value of the infant is greater than the maximum value of the preset body temperature range through the acquired body temperature information of the infant, the control module controls an air conditioning system of a vehicle to cool down;
if the current body temperature value of the infant is detected to be smaller than the minimum value of the preset body temperature range, the control module controls an air conditioning system of the vehicle to heat so as to heat;
and if the current body temperature value of the infant is detected to be within the preset body temperature range, the control module controls the air conditioning system of the vehicle to be in a closed state.
Further, the calm mode includes a sleep sub-mode;
the method for executing the function corresponding to the calm mode by the control module comprises the following steps: the control module collects infant breathing frequency information through the bioimpedance sensor and infant activity information through the triaxial acceleration sensor;
the control module judges whether the infant enters a sleep sub-mode according to the acquired infant breathing frequency information and the infant activity information; and if the sleep sub-mode is judged to be entered, the control module controls the player of the vehicle to be closed.
Further, the method for executing the function corresponding to the happy mode by the control module comprises the following steps: the control module maintains an on state or an off state of a player of the vehicle.
Drawings
FIG. 1 is a schematic diagram of a frame corresponding to the infant monitoring system in a vehicle in embodiment 1;
fig. 2 is a flowchart of a method for monitoring an infant in a vehicle in accordance with embodiment 2.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention:
example 1:
as shown in fig. 1, embodiment 1 provides an in-vehicle infant monitoring system, which includes an infant wearable device, a signal connection module, a detection module and an audio library, wherein the signal connection module, the detection module and the audio library are arranged in a vehicle central control system;
the baby wearable device comprises a body, a wireless connection module and a sound sensor, wherein the wireless connection module and the sound sensor are arranged on the body; the wireless connection module is used for being in wireless connection with the vehicle central control system;
the signal connection module is used for monitoring the connection state of the wireless connection module and the vehicle central control system; and sending connection success information to the detection module when the connection state is monitored;
the audio library is used for storing standard sound information;
the detection module is used for controlling the sound sensor to acquire the sound information of the baby after receiving the connection success information, obtaining detection information according to the sound information of the baby, comparing the detection information with the standard sound information, and obtaining the status information of the baby according to the comparison result.
According to the technical scheme, the wireless connection state of the infant wearable equipment and the vehicle central control system is monitored by the signal connection module, so that whether an infant gets on a vehicle or not can be judged; if the infant is judged to get on the car, the detection module controls the sound sensor to acquire infant sound information, obtains detection information according to the infant sound information, compares the detection information with standard sound information, and obtains infant state information according to a comparison result; in an embodiment, the wireless connection signal established between the infant wearable device and the vehicle central control system is further used for generating a control command condition for opening a vehicle door or prohibiting locking of the vehicle door when the vehicle is at a set speed.
Specific embodiments include: when the vehicle speed is 0, a control device on the vehicle detects an established wireless connection signal of the wearable equipment and the vehicle central control system, the vehicle speed is not less than the set time, in the embodiment, the set time is 60 seconds, if the current vehicle door is in a locking state, the controller sends out a door opening instruction, and the vehicle door lock executing mechanism opens the vehicle door. The set delay is used for judging whether the driver stops temporarily or for a long time in the driving process, so that the frequent opening of the vehicle door can be avoided. The vehicle speed of 0 can be obtained through detection of a vehicle speed sensor of the vehicle, a control device on the vehicle obtains a vehicle speed signal, and after the control device on the vehicle detects a wireless connection signal established between the wearable equipment and the vehicle central control system, the control device obtains a vehicle door state signal, if the vehicle door state signal is in a locking state, after a time delay is set, a controller sends out a door opening instruction, and a vehicle door lock executing mechanism of the vehicle door opens the vehicle door.
In another embodiment, when the vehicle speed is 0, the control device on the vehicle detects that the wireless connection signal between the wearable device and the vehicle central control system is established, the current vehicle door is in an open state, the controller sends out a command for prohibiting the vehicle door locking, and the vehicle door locking executing mechanism does not execute the vehicle door locking action. Therefore, the baby can be prevented from being left in the car after the driver gets off the car, and the car door is locked. A control device on a specific vehicle acquires a vehicle speed signal (a signal with the vehicle speed of 0), and acquires a vehicle door state signal after the control device on the vehicle detects an established wireless connection signal between the wearable equipment and a vehicle central control system, wherein the vehicle door state signal is in an open state; the controller sends out a command for prohibiting the vehicle door, a command for shielding the vehicle door from closing, and the vehicle door lock executing mechanism does not execute the vehicle door locking action.
Through the technical scheme, the information interaction between the wearable infant equipment and the in-car central control system can be realized, whether the infant gets on the car or not is judged, and the emotional state of the infant is determined in real time; the method can be realized by only configuring infant wearable equipment and correspondingly upgrading an in-vehicle central control system without modifying in-vehicle hardware; the system solves the problems that the existing in-car infant monitoring system is usually required to be additionally provided with various sensors and electronic equipment (for example, a pressure sensor is additionally arranged on a driver seat and an infant safety seat, an audio and video sensor and other electronic equipment are additionally arranged in the car), the improvement of an in-car circuit system is involved in the additional installation process, and the problems of complex installation and improvement work, high consumption and high cost exist.
The wireless connection module is wirelessly connected with the vehicle central control system in a plurality of modes, including but not limited to: bluetooth connection, vehicle-mounted WIFI connection and the like.
The in-car infant monitoring system further comprises a control module arranged in the vehicle central control system;
the detection module is also used for sending infant status information to the control module;
the control module is used for controlling the vehicle to enter a corresponding baby care mode according to the baby state information and controlling a target functional component in the vehicle to execute a function corresponding to the baby care mode entered by the vehicle;
infant care modes include a happy mode, a crying mode and a calm mode.
The control module is arranged to control the vehicle to enter a corresponding baby care mode according to the baby state information, and control a target functional component in the vehicle to execute a function corresponding to the baby care mode entered by the vehicle; the infant in the car can be monitored by the infant monitoring system in the car.
Wherein the infant wearable device further comprises a skin electrical activity sensor, a heart rate sensor and a temperature sensor disposed on the body;
the skin electric activity sensor is used for acquiring and transmitting infant pressure information to the control module;
the heart rate sensor is used for acquiring and transmitting infant heart rate information to the control module;
the temperature sensor is used for acquiring and transmitting infant body temperature information to the control module;
the control module is also used for controlling a target functional component in the vehicle to execute a crying mode according to the received infant pressure information, infant heart rate information and infant body temperature information.
By arranging the skin electric activity sensor, the heart rate sensor and the temperature sensor, the control module can monitor the emotion pressure state, the heart rate state and the body temperature state of the infant when the infant is in a crying state; and controls the target functional components in the vehicle to take corresponding care of the baby.
The baby wearable device further comprises a bioimpedance sensor and a triaxial acceleration sensor which are arranged on the body;
the bioimpedance sensor is used for acquiring and transmitting infant breathing frequency information to the control module;
the triaxial acceleration sensor is used for acquiring and transmitting infant activity information to the control module;
the calm mode includes a sleep sub-mode;
the control module is also used for judging whether the infant care mode is switched into the sleep sub-mode according to the received infant breathing frequency information and the infant activity information when the vehicle is in the calm mode; and after judging that the baby care mode is shifted into the sleep sub-mode, controlling a target functional component in the vehicle to execute the sleep sub-mode.
By arranging the bioimpedance sensor and the triaxial acceleration sensor, the control module can monitor the breathing frequency and the activity state of the infant when the infant is in a calm state; and judging whether the infant care mode is switched into the sleep sub-mode according to the respiratory rate and the activity state of the infant (namely judging whether the infant is in the sleep state), after judging that the infant care mode is switched into the sleep sub-mode (namely judging that the infant is in the sleep state), controlling a target functional component in the vehicle to carry out corresponding care on the infant.
Further, the arrangement forms of the body of the infant wearable device include, but are not limited to: a bracelet, a bracelet or a watch worn on the wrist of the infant, a foot ring worn on the ankle of the infant, a necklace worn on the neck of the infant, etc.
The body of the baby wearable device is in a specific setting form so as to ensure the comfort level of wearing of the baby and facilitate the setting of the various sensors on the premise of installation and work.
Example 2:
as shown in fig. 2, based on the in-vehicle infant monitoring system provided in embodiment 1, embodiment 2 further provides an in-vehicle infant monitoring method, which includes:
the method comprises the steps of monitoring the connection state of a wireless connection module and a vehicle central control system by using a signal connection module, and sending connection success information to a detection module when the connection state is monitored;
the detection module detects whether the connection success information is received; if the connection success information is detected to be received, controlling the sound sensor to acquire the sound information of the infant;
the detection module obtains detection information according to the acquired infant sound information, compares the detection information with standard sound information stored in the audio library, and obtains infant status information according to a comparison result.
The specific method for obtaining the detection information by the detection module according to the collected sound information of the infant comprises the following steps:
step 1: detecting the end point of the baby voice information, and determining the starting point and the end point of the baby voice information;
step 2: extracting MFCC characteristic parameters of the infant sound information through short-time analysis;
step 3: and obtaining detection information according to the MFCC characteristic parameters.
The method for comparing the detection information with the standard sound information stored in the audio library and obtaining the infant status information according to the comparison result comprises the following steps:
the standard sound information comprises a happy template, a crying template and a calm template;
and comparing the detection information with a happy template, a crying template and a calm template by adopting a DTW algorithm, and obtaining infant status information according to the template with the highest similarity with the detection information in the happy template, the crying template and the calm template.
In this embodiment 2, after obtaining the infant status information, the detection module sends the infant status information to the control module;
the control module controls the working mode of the vehicle to enter a corresponding baby care mode according to the received baby state information, and controls the target functional component in the vehicle to execute the function corresponding to the baby care mode entered by the vehicle;
infant care modes include a happy mode, a crying mode and a calm mode.
In this embodiment 2, the method for executing the function corresponding to the crying mode by the control module includes: the control module controls a player of the vehicle to play preset audio or video;
the control module collects infant pressure information through the skin electric activity sensor, collects infant heart rate information through the heart rate sensor, collects infant body temperature information through the temperature sensor, and monitors the infant pressure information, the infant heart rate information and the infant body temperature information;
if the control module detects that the current pressure value of the infant exceeds the preset pressure value through the acquired infant pressure information, or the control module detects that the current heart rate value of the infant is not in the preset heart rate range through the acquired infant heart rate information, or the control module detects that the current body temperature value of the infant is not in the preset body temperature range through the acquired infant body temperature information, the control module controls a networking system of the vehicle to send alarm information to the user terminal.
Optionally, in embodiment 2, the method for executing the function corresponding to the crying mode by the control module further includes: if the control module detects that the current body temperature value of the infant is greater than the maximum value of the preset body temperature range through the acquired body temperature information of the infant, the control module controls an air conditioning system of the vehicle to cool;
if the current body temperature value of the infant is detected to be smaller than the minimum value of the preset body temperature range, the control module controls an air conditioning system of the vehicle to heat so as to heat;
if the current body temperature value of the infant is detected to be within the preset body temperature range, the control module controls the air conditioning system of the vehicle to be in a closed state.
In this embodiment 2, the calm mode includes a sleep sub-mode;
the method for executing the function corresponding to the calm mode by the control module comprises the following steps: the control module collects infant breathing frequency information through the bioimpedance sensor and collects infant activity information through the triaxial acceleration sensor;
the control module judges whether the infant enters a sleep sub-mode according to the acquired infant breathing frequency information and infant activity information; and if the sleep sub-mode is judged to be entered, the control module controls the player of the vehicle to be closed.
In this embodiment 2, the method for executing the function corresponding to the happy mode by the control module includes: the control module maintains an on state or an off state of a player of the vehicle.
The in-car infant monitoring system and the method provided by the invention have at least the following technical effects or advantages:
1. the wireless connection state of the infant wearable equipment and the vehicle central control system is monitored by the signal connection module, so that whether an infant gets on the vehicle or not can be judged; if the infant is judged to get on the car, the detection module controls the sound sensor to acquire infant sound information, obtains detection information according to the infant sound information, compares the detection information with standard sound information, and obtains infant state information according to a comparison result; the information interaction between the wearable equipment of the infant and the in-car central control system is further realized, whether the infant gets on the car or not is judged, and the emotional state of the infant is determined in real time; the method can be realized by only configuring infant wearable equipment and correspondingly upgrading an in-vehicle central control system without modifying in-vehicle hardware; the system solves the problems that the existing in-car infant monitoring system is usually required to be additionally provided with various sensors and electronic equipment (for example, a pressure sensor is additionally arranged on a driver seat and an infant safety seat, an audio and video sensor and other electronic equipment are additionally arranged in the car), the improvement of an in-car circuit system is involved in the additional installation process, and the problems of complex installation and improvement work, high consumption and high cost exist.
2. The control module is arranged to control the vehicle to enter a corresponding baby care mode according to the baby state information, and control a target functional component in the vehicle to execute a function corresponding to the baby care mode entered by the vehicle; the infant in the car can be monitored by the infant monitoring system in the car.
3. By arranging the skin electric activity sensor, the heart rate sensor and the temperature sensor, the control module can monitor the emotion pressure state, the heart rate state and the body temperature state of the infant when the infant is in a crying state; and controls the target functional components in the vehicle to take corresponding care of the baby.
4. By arranging the bioimpedance sensor and the triaxial acceleration sensor, the control module can monitor the breathing frequency and the activity state of the infant when the infant is in a calm state; and judging whether the infant care mode is switched into the sleep sub-mode according to the respiratory rate and the activity state of the infant (namely judging whether the infant is in the sleep state), after judging that the infant care mode is switched into the sleep sub-mode (namely judging that the infant is in the sleep state), controlling a target functional component in the vehicle to carry out corresponding care on the infant.
The above is only a specific application example of the present invention, and the protection scope of the present invention is not limited at all, and the technical solution formed by adopting equivalent transformation or equivalent substitution falls within the protection scope of the present invention.
Claims (10)
1. An in-car infant monitoring system, characterized in that: the system comprises infant wearable equipment, a signal connection module, a detection module and an audio library, wherein the signal connection module, the detection module and the audio library are arranged in a vehicle central control system;
the baby wearable device comprises a body, a wireless connection module and a sound sensor, wherein the wireless connection module and the sound sensor are arranged on the body; the wireless connection module is used for being in wireless connection with the vehicle central control system;
the signal connection module is used for monitoring the connection state of the wireless connection module and the vehicle central control system; sending connection success information to the detection module when the connection state is monitored;
the audio library is used for storing standard sound information;
the detection module is used for controlling the sound sensor to acquire the sound information of the baby after receiving the connection success information, obtaining detection information according to the sound information of the baby, comparing the detection information with the standard sound information, and obtaining the status information of the baby according to a comparison result.
2. The in-car infant monitoring system of claim 1, wherein: the control module is arranged in the vehicle central control system;
the detection module is also used for sending the infant status information to the control module;
the control module is used for controlling the vehicle to enter a corresponding baby care mode according to the baby state information and controlling a target functional component in the vehicle to execute a function corresponding to the baby care mode which the vehicle enters;
the infant care modes include a happy mode, a crying mode, and a calm mode.
3. The in-car infant monitoring system of claim 2, wherein: the infant wearable device further includes a galvanic skin activity sensor, a heart rate sensor, and a temperature sensor disposed on the body;
the skin electric activity sensor is used for acquiring and transmitting infant pressure information to the control module;
the heart rate sensor is used for acquiring and transmitting infant heart rate information to the control module;
the temperature sensor is used for acquiring and transmitting infant body temperature information to the control module;
the control module is also used for controlling a target functional component in the vehicle to execute the crying mode according to the received infant pressure information, infant heart rate information and infant body temperature information.
4. The in-car infant monitoring system of claim 2, wherein: the infant wearable device further comprises a bioimpedance sensor and a triaxial acceleration sensor arranged on the body;
the biological impedance sensor is used for acquiring and transmitting infant breathing frequency information to the control module;
the triaxial acceleration sensor is used for acquiring and transmitting infant activity information to the control module;
the calm mode includes a sleep sub-mode;
the control module is further configured to determine, when the vehicle is in the calm mode, whether the infant care mode is shifted to the sleep sub-mode according to the received infant breathing frequency information and the infant activity information; and after judging that the infant care mode is shifted into the sleep sub-mode, controlling a target functional component in the vehicle to execute the sleep sub-mode.
5. An in-car infant monitoring method is characterized in that: implemented with an in-car infant monitoring system according to any one of claims 1-4, comprising:
the method comprises the steps of monitoring the connection state of a wireless connection module and a vehicle central control system by using a signal connection module, and sending connection success information to a detection module when the connection state is monitored;
the detection module detects whether connection success information is received or not; if the connection success information is detected to be received, controlling the sound sensor to acquire the sound information of the infant;
the detection module obtains detection information according to the acquired infant sound information, compares the detection information with standard sound information stored in an audio library, and obtains infant status information according to a comparison result.
6. The method of in-car infant care of claim 5, wherein: the specific method for the detection module to obtain the detection information according to the acquired sound information of the infant comprises the following steps:
step 1: detecting the end point of the infant sound information, and determining the starting point and the end point of the infant sound information;
step 2: extracting MFCC characteristic parameters of the infant sound information through short-time analysis;
step 3: and obtaining the detection information according to the MFCC characteristic parameters.
7. The method of in-car infant care of claim 6, wherein: the method for comparing the detection information with the standard sound information stored in the audio library and obtaining the infant status information according to the comparison result comprises the following steps:
the standard sound information comprises a happy template, a crying template and a calm template;
and comparing the detection information with the happy template, the crying template and the calm template by adopting a DTW algorithm, and obtaining the infant status information according to the template with the highest similarity with the detection information in the happy template, the crying template and the calm template.
8. The method of in-car infant care of claim 5, wherein: after the infant status information is obtained, the detection module sends the infant status information to the control module;
the control module controls the working mode of the vehicle to enter a corresponding baby care mode according to the received baby state information, and controls a target functional component in the vehicle to execute a function corresponding to the baby care mode entered by the vehicle;
the infant care modes include a happy mode, a crying mode, and a calm mode.
9. The method of in-car infant care of claim 8, wherein: the method for executing the function corresponding to the crying mode by the control module comprises the following steps: the control module controls a player of the vehicle to play preset audio or video;
the control module collects infant pressure information through a skin electric activity sensor, collects infant heart rate information through a heart rate sensor, collects infant body temperature information through a temperature sensor, and monitors the infant pressure information, the infant heart rate information and the infant body temperature information;
if the control module detects that the current pressure value of the infant exceeds the preset pressure value through the acquired infant pressure information, or the control module detects that the current heart rate value of the infant is not in the preset heart rate range through the acquired infant heart rate information, or the control module detects that the current body temperature value of the infant is not in the preset body temperature range through the acquired infant body temperature information, the control module controls a networking system of a vehicle to send alarm information to a user terminal.
10. The method of in-car infant care of claim 8, wherein: the calm mode includes a sleep sub-mode;
the method for executing the function corresponding to the calm mode by the control module comprises the following steps: the control module collects infant breathing frequency information through the bioimpedance sensor and infant activity information through the triaxial acceleration sensor;
the control module judges whether the infant enters a sleep sub-mode according to the acquired infant breathing frequency information and the infant activity information; and if the sleep sub-mode is judged to be entered, the control module controls the player of the vehicle to be closed.
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