CN116001717A - In-car infant monitoring system and method - Google Patents

Abstract

The present invention relates to the technical field of automotive electronics, in particular to an in-vehicle baby monitoring system and method; specifically includes a baby wearable device, a signal connection module, a detection module and an audio library set in the vehicle central control system; the baby wearable device includes The main body, the wireless connection module and the sound sensor arranged on the main body; the wireless connection module is used for wireless connection with the vehicle central control system; the signal connection module is used for detection when the wireless connection module is wirelessly connected with the vehicle central control system The module sends out connection success information; the audio library is used to store standard sound information; the detection module is used to control the sound sensor to collect baby sound information after receiving the connection success information, obtain detection information according to the baby sound information, and compare the detection information with the standard sound information The comparison is carried out, and the baby's state information is obtained according to the comparison result, so as to determine the baby's emotional state.

Description

System and method for in-vehicle baby monitoring

technical field

The invention relates to the technical field of automotive electronics, in particular to an in-vehicle baby monitoring system and method.

Background technique

With the increasing number of cars, people pay more and more attention to the safety of babies in cars; when the driver takes the baby out alone and needs to let the baby stay in the car seat for a long time, in the process of driving the car, or When the driver needs to leave the vehicle alone and the baby needs to stay alone in the car safety seat, it is difficult for the driver to determine the emotional state of the baby in time, and cannot take care of the baby according to the emotional state in time; at this time, if the baby is emotionally unstable or Physical discomfort will not only affect the safety of the baby in the car, but may also indirectly affect the driver's driving, and even affect the safe driving of the vehicle.

In order to solve the problems referred to above, a baby monitoring system in a car has emerged at the historic moment, but the existing baby monitoring system in a car usually needs to install various sensors and electronic equipment in the car (for example: on the driver's seat and the baby safety seat Install pressure sensors, add audio and video sensors and other electronic equipment in the car, etc.), the process of adding will involve the transformation of the circuit system in the car, the installation and transformation work is complex, labor-intensive, and costly The problem.

Contents of the invention

The present invention solves the problem that the existing baby monitoring system in the car usually needs to install various sensors and electronic devices in the car by providing a baby monitoring system and method in the car (for example: adding a driver's seat and a baby safety seat) Install pressure sensors, install audio and video sensors and other electronic equipment in the car, etc.), the process of adding will also involve the transformation of the circuit system in the car, there are complex installation and transformation work, labor-intensive, and high cost question.

The technical solution adopted by the present invention is: an in-vehicle baby monitoring system, including a baby wearable device, a signal connection module, a detection module and an audio library set in the vehicle central control system;

The baby wearable device includes a body, a wireless connection module and a sound sensor arranged on the body; the wireless connection module is used for wireless connection with the vehicle central control system;

The signal connection module is used to monitor the connection state between the wireless connection module and the vehicle central control system; and send a connection success message to the detection module when the connection state is detected;

The audio library is used to store standard sound information;

The detection module is used to control the sound sensor to collect baby sound information after receiving the connection success information, obtain detection information according to the baby sound information, and compare the detection information with the standard sound information, And get the baby status information according to the comparison result.

In the above technical solution, by using the signal connection module to monitor the wireless connection status between the baby wearable device and the vehicle central control system, it can be judged whether the baby has boarded the car; if it is judged that the baby has boarded the car, the detection module will control The sound sensor collects baby sound information, obtains detection information according to the baby sound information, compares the detection information with the standard sound information, and obtains baby state information according to the comparison result;

Through the above technical solution, it is possible to use the information interaction between the baby wearable device and the central control system in the car to determine whether the baby has boarded the car, and to determine the emotional state of the baby in real time; no need to modify the hardware in the car, only need to configure all The baby wearable device mentioned above can be realized by upgrading the central control system in the car; it solves the problem that the existing baby monitoring system in the car usually needs to install various sensors and electronic devices in the car (for example: when driving Seats and baby safety seats are equipped with pressure sensors, audio and video sensors and other electronic equipment are installed in the car, etc.). Complex, labor-intensive, costly problems.

Wherein, the wireless connection module can be wirelessly connected to the vehicle central control system in various ways, including but not limited to: Bluetooth connection, vehicle WIFI connection and other ways.

Further, the in-vehicle baby monitoring system also includes a control module arranged in the vehicle central control system;

The detection module is also used to send the baby status information to the control module;

The control module is used to control the vehicle to enter a corresponding baby care mode according to the baby status information, and control the target functional components in the vehicle to execute the functions corresponding to the baby care mode entered by the vehicle;

The baby care modes include happy mode, crying mode and calm mode.

By setting the control module, the control module controls the vehicle to enter the corresponding baby care mode according to the baby state information, and controls the target function components in the vehicle to execute the corresponding baby care mode entered by the vehicle. function; the baby monitoring system in the car can be used to monitor the baby in the car.

Further, the baby wearable device also includes an electrodermal activity sensor, a heart rate sensor and a temperature sensor arranged on the body;

The electrodermal activity sensor is used to acquire and transmit baby pressure information to the control module;

The heart rate sensor is used to obtain and transmit the baby's heart rate information to the control module;

The temperature sensor is used to obtain and transmit baby body temperature information to the control module;

The control module is further configured to control target functional components in the vehicle to execute the crying mode according to the received baby pressure information, baby heart rate information and baby body temperature information.

By setting the electrodermal activity sensor, the heart rate sensor and the temperature sensor, when the baby is in a crying state, the control module can monitor the baby's emotional stress state, heart rate state and body temperature state; And control the target functional components in the vehicle to take care of the baby accordingly.

Further, the baby wearable device also includes a bioimpedance sensor and a triaxial acceleration sensor arranged on the body;

The bio-impedance sensor is used to acquire and transmit infant respiratory rate information to the control module;

The triaxial acceleration sensor is used to obtain and transmit baby activity information to the control module;

the calm mode includes a sleep sub-mode;

The control module is further configured to determine whether the baby care mode is transferred to the sleep sub-mode according to the received infant breathing rate information and the infant activity information when the vehicle is in the calm mode; and After judging that the baby care mode is transferred to the sleep sub-mode, controlling target functional components in the vehicle to execute the sleep sub-mode.

By setting the bio-impedance sensor and the triaxial acceleration sensor, when the baby is in a calm state, the control module can monitor the baby's breathing rate and activity status; and according to the baby's breathing rate and activity status Judging whether the baby care mode is transferred to the sleep sub-mode (that is, judging whether the baby is in a sleep state), after judging that the baby care mode is transferred to the sleep sub-mode (that is, after judging that the baby is in a sleep state) , and control the target functional components in the vehicle to take care of the baby accordingly.

Further, the body includes a bracelet, a bracelet, a watch, an anklet or a necklace.

Based on the baby monitoring system in the car provided by the present invention, the present invention also provides a baby monitoring method in the car, including:

Use the signal connection module to monitor the connection status between the wireless connection module and the vehicle central control system, and send a successful connection message to the detection module when the connection status is detected;

The detection module detects whether the successful connection information is received; if it detects that the successful connection information is received, it controls the sound sensor to collect the baby's voice information;

The detection module obtains detection information according to the collected sound information of the baby, compares the detection information with the standard sound information stored in the audio library, and obtains the baby state information according to the comparison result.

Further, the specific method for the detection module to obtain detection information according to the collected baby voice information includes the following steps:

Step 1: Carry out endpoint detection to the baby's voice information, and determine the starting point and end point of the baby's voice information;

Step 2: extract the MFCC feature parameters of the baby's voice information through short-term analysis;

Step 3: Obtain the detection information according to the characteristic parameters of the MFCC.

Further, the method of comparing the detection information with the standard sound information stored in the audio library, and obtaining the baby state information according to the comparison result includes:

The standard sound information includes a happy template, a crying template and a calm template;

Using the DTW algorithm to compare the detection information with the happy template, the crying template and the calm template respectively, according to the detection information in the happy template, the crying template and the calm template The template with the highest similarity is used to obtain the status information of the baby.

Further, after obtaining the baby status information, the detection module sends the baby status information to the control module;

The control module controls the working mode of the vehicle to enter the corresponding baby care mode according to the received baby state information, and controls the target functional components in the vehicle to execute the functions corresponding to the baby care mode entered by the vehicle;

The baby care modes include happy mode, crying mode and calm mode.

Further, the method for the control module to execute the function corresponding to the crying mode includes: the control module controls the player of the vehicle to play preset audio or video;

The control module collects the baby's pressure information through the electrodermal activity sensor, the baby's heart rate information through the heart rate sensor, and the baby's body temperature information through the temperature sensor, and performs an operation on the baby's pressure information, the baby's heart rate information, and the baby's body temperature information. monitor;

If the control module detects that the baby's current pressure value exceeds the preset pressure value through the collected baby pressure information, or the control module detects the baby's current heart rate value through the collected baby heart rate information Not within the preset heart rate range, or the control module detects that the baby’s current body temperature value is not within the preset body temperature range through the collected body temperature information of the baby, then the control module controls the networked system of the vehicle to send a message to the user terminal Alert message.

Further, the method for the control module to execute the function corresponding to the crying mode further includes: if the control module detects that the current body temperature of the baby is greater than the preset temperature value through the collected body temperature information of the baby. If the maximum value of the body temperature range is set, the control module controls the cooling of the air-conditioning system of the vehicle to cool down;

If it is detected that the current body temperature of the baby is less than the minimum value of the preset body temperature range, the control module controls the vehicle's air-conditioning system to heat to heat up;

If it is detected that the current body temperature of the baby is within the preset body temperature range, the control module controls the air-conditioning system of the vehicle to be turned off.

Further, the quiet mode includes a sleep sub-mode;

The method for the control module to execute the function corresponding to the calm mode includes: the control module collects the infant's respiratory frequency information through a bio-impedance sensor, and collects infant activity information through a triaxial acceleration sensor;

The control module judges whether the baby has entered the sleep sub-mode according to the collected baby's respiratory rate information and the baby's activity information; if it is determined that the baby has entered the sleep sub-mode, the control module controls the player of the vehicle to turn off.

Further, the method for the control module to execute the function corresponding to the happy mode includes: the control module maintains the on state or off state of the player of the vehicle.

Description of drawings

Fig. 1 is the frame schematic diagram corresponding to the infant monitoring system in the car in embodiment 1;

Fig. 2 is a flow chart of the baby monitoring method in the car in embodiment 2.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention:

Example 1:

As shown in Figure 1, Embodiment 1 provides an in-vehicle baby monitoring system, including a baby wearable device, a signal connection module, a detection module and an audio library set in the vehicle central control system;

The baby wearable device includes a body, a wireless connection module and a sound sensor arranged on the body; the wireless connection module is used for wireless connection with the vehicle central control system;

The signal connection module is used to monitor the connection status between the wireless connection module and the vehicle central control system; and sends a successful connection message to the detection module when the connection status is detected;

The audio library is used to store standard sound information;

The detection module is used to control the sound sensor to collect the baby's voice information after receiving the successful connection information, obtain the detection information according to the baby's voice information, compare the detection information with the standard sound information, and obtain the baby's status information according to the comparison result.

In the above technical solution, the signal connection module is used to monitor the wireless connection status between the baby wearable device and the vehicle central control system to determine whether the baby has boarded the car; if it is judged that the baby has boarded the car, the detection module controls the sound sensor to collect the baby's voice information , obtain the detection information according to the baby’s sound information, compare the detection information with the standard sound information, and obtain the baby’s status information according to the comparison result; in the embodiment, the wireless connection signal established between the baby wearable device and the vehicle central control system is also used When the vehicle is at a set speed, the control command for opening the door or prohibiting door locking is generated.

The specific implementation scheme includes: when the vehicle speed is 0, the control device on the vehicle detects the wireless connection signal established between the wearable device and the vehicle central control system, and the time when the vehicle speed is 0 is not less than the set time, which is set in the embodiment The time is 60 seconds. If the current door is locked, the controller sends a door opening command, and the door lock actuator opens the door. The setting delay is used to judge whether the purpose of the driver's parking is temporary parking or long-term parking during driving, so as to avoid frequent opening of the car door. The above-mentioned vehicle speed of 0 can be detected by the vehicle speed sensor. The control device on the vehicle obtains the vehicle speed signal, and obtains the door status after the control device on the vehicle detects the wireless connection signal established between the wearable device and the vehicle central control system. Signal, such as the door status signal is locked, after a set time delay, the controller sends a door opening command, and the door lock actuator opens the door.

In another embodiment, when the vehicle speed is 0, the control device on the vehicle detects the wireless connection signal established between the wearable device and the vehicle central control system, and the current door is open, the controller issues a command to prohibit door locking, The door lock actuator does not execute the door lock action. Can avoid like this, after the driver gets off, leaves baby in the car, and car door is locked. Specifically, the control device on the vehicle obtains the vehicle speed signal (a signal with a vehicle speed of 0), and after the control device on the vehicle detects the wireless connection signal established between the wearable device and the vehicle central control system, obtains the door status signal, such as the vehicle door The status signal is in the open state; the controller sends out a door prohibition command, shields the door close command, and the door lock actuator does not perform the door lock action.

Through the above technical solution, it is possible to realize the information interaction between the baby wearable device and the central control system in the car, determine whether the baby has boarded the car, and determine the emotional state of the baby in real time; no need to modify the hardware in the car, only need to configure the baby wearable Equipment, and the corresponding upgrade of the central control system in the car can be realized; it solves the problem that the existing baby monitoring system in the car usually needs to install various sensors and electronic devices in the car (for example: in the driver's seat and baby safety Install pressure sensors on the seats, install audio and video sensors and other electronic equipment in the car, etc.), the process of adding will also involve the modification of the circuit system in the car, and the installation and modification work is complicated and labor-intensive. , a costly problem.

Among them, there are many ways for the wireless connection module to wirelessly connect with the vehicle central control system, including but not limited to: Bluetooth connection, vehicle WIFI connection and other methods.

Wherein, the in-vehicle baby monitoring system also includes a control module arranged in the vehicle central control system;

The detection module is also used to send baby status information to the control module;

The control module is used to control the vehicle to enter the corresponding baby care mode according to the baby state information, and control the target functional components in the vehicle to execute the functions corresponding to the baby care mode entered by the vehicle;

Baby care modes include happy mode, crying mode and calm mode.

By setting the control module, the control module controls the vehicle to enter the corresponding baby care mode according to the baby status information, and controls the target functional components in the vehicle to perform the functions corresponding to the baby care mode entered by the vehicle; the baby monitoring system in the car can be used Realize the monitoring of babies in the car.

Among them, the baby wearable device also includes an electrodermal activity sensor, a heart rate sensor and a temperature sensor arranged on the body;

The electrodermal activity sensor is used to acquire and transmit baby pressure information to the control module;

The heart rate sensor is used to obtain and transmit the baby's heart rate information to the control module;

The temperature sensor is used to obtain and transmit baby body temperature information to the control module;

The control module is also used to control the target functional components in the vehicle to execute the crying mode according to the received baby pressure information, baby heart rate information and baby body temperature information.

By setting the electrodermal activity sensor, heart rate sensor and temperature sensor, when the baby is crying, the control module can monitor the baby's emotional stress state, heart rate state and body temperature state; and control the target functional components in the vehicle Carry out appropriate care for the baby.

Among them, the baby wearable device also includes a bioimpedance sensor and a three-axis acceleration sensor arranged on the body;

The bio-impedance sensor is used to obtain and transmit the baby's respiratory rate information to the control module;

The three-axis acceleration sensor is used to obtain and transmit the baby's activity information to the control module;

Calm mode includes sleep sub-mode;

The control module is also used for judging whether the baby care mode is transferred to the sleep sub-mode according to the received baby breathing frequency information and baby activity information when the vehicle is in the quiet mode; and after judging that the baby care mode is transferred to the sleep sub-mode, control the vehicle The target function within the component executes the sleep submode.

By setting the bio-impedance sensor and the triaxial acceleration sensor, when the baby is in a calm state, the control module can monitor the baby's breathing rate and activity status; Enter the sleep sub-mode (that is, determine whether the baby is in a sleep state), after judging that the baby care mode is transferred to the sleep sub-mode (that is, after judging that the baby is in a sleep state), and control the target functional components in the vehicle to correspond to the baby care.

Further, the setting form of the body of the baby's wearable device includes but is not limited to: a bracelet, bracelet or watch worn on the baby's wrist, an anklet worn on the baby's ankle, a necklace worn on the baby's neck, and the like.

The specific setting form of the body of the baby's wearable device is set on the premise of ensuring the comfort of the baby's wearing and facilitating the installation and work of the above-mentioned various sensors.

Example 2:

As shown in Figure 2, based on the in-vehicle baby monitoring system provided in embodiment 1, embodiment 2 also provides an in-vehicle baby monitoring method, including:

Use the signal connection module to monitor the connection status between the wireless connection module and the vehicle central control system, and send a successful connection message to the detection module when the connection status is detected;

The detection module detects whether the connection success message is received; if the connection success message is received, the sound sensor is controlled to collect the baby's voice information;

The detection module obtains detection information according to the collected baby sound information, compares the detection information with standard sound information stored in the audio library, and obtains baby status information according to the comparison result.

Wherein, the specific method for the detection module to obtain detection information according to the collected infant voice information includes the following steps:

Step 1: Carry out endpoint detection on the baby's voice information, and determine the starting point and end point of the baby's voice information;

Step 2: Through short-term analysis, extract the MFCC characteristic parameters of the baby's voice information;

Step 3: Obtain detection information according to MFCC characteristic parameters.

Wherein, the method of comparing the detection information with the standard sound information stored in the audio library, and obtaining the baby state information according to the comparison result includes:

Standard voice messages include happy template, crying template and calm template;

The DTW algorithm is used to compare the detection information with the happy template, crying template and calm template respectively, and according to the template with the highest similarity with the detection information among the happy template, crying template and calm template, the baby status information is obtained.

In this embodiment 2, after obtaining the baby state information, the detection module sends the baby state information to the control module;

The control module controls the working mode of the vehicle to enter the corresponding baby care mode according to the received baby status information, and controls the target functional components in the vehicle to execute the functions corresponding to the baby care mode entered by the vehicle;

Baby care modes include happy mode, crying mode and calm mode.

In Embodiment 2, the method for the control module to execute the function corresponding to the crying mode includes: the control module controls the player of the vehicle to play preset audio or video;

The control module collects the baby's pressure information through the electrodermal activity sensor, the baby's heart rate information through the heart rate sensor, and the baby's body temperature information through the temperature sensor, and monitors the baby's pressure information, baby's heart rate information and baby's body temperature information;

If the control module detects that the baby's current pressure value exceeds the preset pressure value through the collected baby pressure information, or the control module detects that the baby's current heart rate value is not within the preset heart rate range through the collected baby's heart rate information, or The control module detects that the current body temperature of the baby is not within the preset body temperature range through the collected baby body temperature information, and then the control module controls the networked system of the vehicle to send an alarm message to the user terminal.

Optionally, in Embodiment 2, the method for the control module to perform the function corresponding to the crying mode further includes: if the control module detects that the current body temperature of the baby is greater than 100% of the preset body temperature range through the collected baby body temperature information. maximum value, the control module controls the cooling of the vehicle's air conditioning system to cool down;

If it is detected that the current body temperature of the baby is lower than the minimum value of the preset body temperature range, the control module controls the vehicle's air-conditioning system to heat up to increase the temperature;

If it is detected that the current body temperature of the baby is within the preset body temperature range, the control module controls the air-conditioning system of the vehicle to be in an off state.

In this embodiment 2, the quiet mode includes a sleep sub-mode;

The method for the control module to perform the function corresponding to the calm mode includes: the control module collects the baby's respiratory frequency information through the bio-impedance sensor, and collects the baby's activity information through the triaxial acceleration sensor;

The control module judges whether the baby has entered the sleep sub-mode according to the collected baby's respiratory rate information and baby activity information; if it is determined that the baby has entered the sleep sub-mode, the control module controls the player of the vehicle to turn off.

In Embodiment 2, the method for the control module to execute the function corresponding to the happy mode includes: the control module maintains the on state or off state of the player of the vehicle.

The in-vehicle baby monitoring system and method provided by the present invention at least have the following technical effects or advantages:

1. Use the signal connection module to monitor the wireless connection status between the baby's wearable device and the vehicle's central control system to determine whether the baby has boarded the car; The sound information obtains the detection information, compares the detection information with the standard sound information, and obtains the baby's status information according to the comparison result; and then realizes the information interaction between the baby's wearable device and the car's central control system to determine whether the baby has boarded the car, and Real-time determination of the baby's emotional state; no need to modify the hardware in the car, just configure the baby's wearable device and upgrade the central control system in the car; solve the problem that the existing baby monitoring system in the car usually requires Various sensors and electronic equipment are installed in the car (for example: pressure sensors are installed on the driver's seat and baby safety seat, audio and video sensors and other electronic equipment are installed in the car, etc.). When it comes to the transformation of the circuit system in the car, there are problems of complicated installation and transformation, labor-intensive and high cost.

2. By setting the control module, the control module controls the vehicle to enter the corresponding baby care mode according to the baby status information, and controls the target functional components in the vehicle to execute the functions corresponding to the baby care mode entered by the vehicle; the baby in the car can be used The monitoring system realizes the monitoring of the baby in the car.

3. By setting the electrodermal activity sensor, heart rate sensor and temperature sensor, when the baby is crying, the control module can monitor the baby's emotional stress state, heart rate state and body temperature state; and control the target in the vehicle The functional components take care of the baby accordingly.

4. By setting the bio-impedance sensor and the three-axis acceleration sensor, the control module can monitor the baby's breathing rate and activity status when the baby is in a calm state; and judge the baby care mode according to the baby's breathing rate and activity status Whether to transfer to the sleep sub-mode (that is, to determine whether the baby is in a sleep state), after judging that the baby care mode is transferred to the sleep sub-mode (that is, after judging that the baby is in a sleep state), and controlling the target function components in the vehicle to monitor the baby Take care accordingly.

The above are only specific application examples of the present invention, and do not constitute any limitation to the protection scope of the present invention. All technical solutions formed by equivalent transformation or equivalent replacement all fall 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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