In-vehicle baby monitoring system and method

Abstract

The present invention relates to the field of automotive electronics technology, and in particular to an in-vehicle baby monitoring system and method; the system and method specifically include a baby wearable device, a signal connection module, a detection module and an audio library arranged in a 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 wirelessly connecting to the vehicle central control system; the signal connection module is used for sending a connection success message to the detection module when it is detected that the wireless connection module and the vehicle central control system are in a wireless connection state; the audio library is used for storing standard sound information; the detection module is used for, after receiving the connection success message, controlling the sound sensor to collect baby sound information, obtaining detection information according to the baby sound information, comparing the detection information with the standard sound information, and obtaining baby state information according to the comparison result to determine the baby's emotional state.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile electronics, and in particular to an in-vehicle baby monitoring system and method. Background Art

[0002] With the increase in the number of cars, people are paying more and more attention to the safety of infants riding in cars. When a driver takes a baby out alone and needs to keep the baby in the car safety seat for a long time, it is difficult for the driver to determine the baby's emotional state in time and cannot take care of the baby according to the baby's emotional state in time during driving, or when the driver needs to leave the vehicle alone and needs to leave the baby alone in the car safety seat. At this time, if the baby is emotionally unstable or physically unwell, it will not only affect the baby's safety in the car, but may also indirectly affect the driver's driving and even affect the safe driving of the vehicle.

[0003] In order to solve the above problems, in-car baby monitoring systems came into being. However, existing in-car baby monitoring systems usually require the installation of various sensors and electronic equipment in the car (for example, pressure sensors are installed on the driver's seat and baby safety seats, audio and video sensors and other electronic equipment are installed in the car, etc.). The installation process involves the modification of the in-car circuit system, which has the problems of complex installation and modification work, labor consumption and high cost. Summary of the invention

[0004] The present invention provides an in-car baby monitoring system and method to solve the problem that the existing in-car baby monitoring system usually needs to install various sensors and electronic equipment in the car (for example, installing pressure sensors on the driver's seat and the baby safety seat, installing audio and video sensors and other electronic equipment in the car, etc.), and the installation process involves the modification of the in-car circuit system, which has the problems of complex installation and modification work, labor consumption and high cost.

[0005] The technical solution adopted by the present invention is: an in-vehicle baby monitoring system, comprising a baby wearable device, a signal connection module, a detection module and an audio library arranged in a vehicle central control system;

[0006] The infant 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;

[0007] The signal connection module is used to monitor the connection status between the wireless connection module and the vehicle central control system; and send a connection success message to the detection module when it is detected that the connection status is in progress;

[0008] The audio library is used to store standard sound information;

[0009] The detection module is used to control the sound sensor to collect baby sound information after receiving the connection success information, obtain detection information based on the baby sound information, compare the detection information with the standard sound information, and obtain baby status information based on the comparison result.

[0010] In the above technical solution, the signal connection module is used to monitor the wireless connection status between the infant wearable device and the vehicle central control system to determine whether the infant has boarded the vehicle; if it is determined that the infant has boarded the vehicle, the detection module controls the sound sensor to collect infant sound information, obtains detection information based on the infant sound information, compares the detection information with the standard sound information, and obtains infant status information based on the comparison result;

[0011] Through the above technical scheme, it is possible to utilize 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 determine the baby's emotional state in real time; there is no need to modify the hardware in the car, only the baby wearable device needs to be configured, and the central control system in the car needs to be upgraded accordingly; it solves the problem that the existing in-car baby monitoring system usually needs to install various sensors and electronic equipment in the car (for example: installing pressure sensors on the driver's seat and baby safety seats, installing audio and video sensors and other electronic equipment in the car, etc.), and the installation process involves the modification of the in-car circuit system, which has the problems of complex installation and modification work, labor consumption and high cost.

[0012] There are many ways to wirelessly connect the wireless connection module to the vehicle central control system, including but not limited to: Bluetooth connection, vehicle-mounted WIFI connection, etc.

[0013] Furthermore, the in-vehicle baby monitoring system further includes a control module disposed in the vehicle central control system;

[0014] The detection module is also used to send the baby status information to the control module;

[0015] 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 component in the vehicle to perform a function corresponding to the baby care mode entered by the vehicle;

[0016] The baby care modes include a happy mode, a crying mode and a calm mode.

[0017] 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 in-vehicle baby monitoring system can be used to monitor the baby in the vehicle.

[0018] Furthermore, the infant wearable device further comprises a skin electrical activity sensor, a heart rate sensor and a temperature sensor arranged on the body;

[0019] The electrical skin activity sensor is used to obtain and transmit infant pressure information to the control module;

[0020] The heart rate sensor is used to obtain and transmit the baby's heart rate information to the control module;

[0021] The temperature sensor is used to obtain and transmit the baby's body temperature information to the control module;

[0022] The control module is further used to control the target functional component in the vehicle to execute the crying mode according to the received baby pressure information, the baby heart rate information and the baby body temperature information.

[0023] By setting the skin electrical 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 provide corresponding care for the baby.

[0024] Furthermore, the infant wearable device further includes a bioimpedance sensor and a three-axis acceleration sensor arranged on the body;

[0025] The bioimpedance sensor is used to obtain and transmit infant breathing frequency information to the control module;

[0026] The three-axis acceleration sensor is used to obtain and transmit infant activity information to the control module;

[0027] The calm mode includes a sleep sub-mode;

[0028] The control module is also used to determine whether the baby care mode is transferred to the sleep sub-mode based on the received baby breathing frequency information and the baby activity information when the vehicle is in the quiet mode; and after determining that the baby care mode is transferred to the sleep sub-mode, control the target functional components in the vehicle to execute the sleep sub-mode.

[0029] By setting the bioimpedance sensor and the three-axis acceleration sensor, the control module can monitor the breathing frequency and activity status of the baby when the baby is in a calm state; and determine whether the baby care mode is transferred to the sleep sub-mode (that is, determine whether the baby is in a sleep state) according to the baby's breathing frequency and activity status; after determining that the baby care mode is transferred to the sleep sub-mode (that is, after determining that the baby is in a sleep state), the target functional components in the vehicle are controlled to provide corresponding care for the baby.

[0030] Furthermore, the main body includes a bracelet, a bracelet, a watch, an anklet or a necklace.

[0031] Based on the in-vehicle baby monitoring system provided by the present invention, the present invention also provides an in-vehicle baby monitoring method, comprising:

[0032] The signal connection module is used to monitor the connection status between the wireless connection module and the vehicle central control system, and when the connection status is detected, a connection success message is sent to the detection module;

[0033] The detection module detects whether the connection success information is received; if the connection success information is received, the sound sensor is controlled to collect the baby sound information;

[0034] The detection module obtains detection information according to the collected baby sound information, compares the detection information with the standard sound information stored in the audio library, and obtains baby status information according to the comparison result.

[0035] Furthermore, the specific method for the detection module to obtain detection information according to the collected baby sound information includes the following steps:

[0036] Step 1: performing endpoint detection on the baby sound information to determine the starting point and the end point of the baby sound information;

[0037] Step 2: extracting MFCC feature parameters of the baby sound information through short-term analysis;

[0038] Step 3: Obtain the detection information according to the MFCC feature parameters.

[0039] Furthermore, the method of comparing the detection information with the standard sound information stored in the audio library and obtaining the baby status information according to the comparison result includes:

[0040] The standard sound information includes a happy template, a crying template and a calm template;

[0041] The detection information is compared with the happy template, the crying template and the calm template respectively by using the DTW algorithm, and the baby status information is obtained according to the template with the highest similarity to the detection information among the happy template, the crying template and the calm template.

[0042] Further, after obtaining the infant status information, the detection module sends the infant status information to the control module;

[0043] The control module controls the working mode of the vehicle to enter a corresponding baby care mode according to the received baby status information, and controls the target functional component in the vehicle to perform the function corresponding to the baby care mode entered by the vehicle;

[0044] The baby care modes include a happy mode, a crying mode and a calm mode.

[0045] 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 a preset audio or video;

[0046] The control module collects baby pressure information through the skin electrical activity sensor, collects baby heart rate information through the heart rate sensor, collects baby temperature information through the temperature sensor, and monitors the baby pressure information, the baby heart rate information and the baby temperature information;

[0047] If the control module detects through the collected baby pressure information that the baby's current pressure value exceeds the preset pressure value, or the control module detects through the collected baby heart rate information that the baby's current heart rate value is not within the preset heart rate range, or the control module detects through the collected baby temperature information that the baby's current body temperature value is not within the preset body temperature range, the control module controls the vehicle's networking system to send an alarm message to the user terminal.

[0048] Furthermore, the method for the control module to execute the function corresponding to the crying mode also includes: if the control module detects that the current body temperature of the baby is greater than the maximum value of the preset body temperature range through the collected body temperature information of the baby, the control module controls the air conditioning system of the vehicle to cool down to reduce the temperature;

[0049] 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 air conditioning system of the vehicle to heat the body to increase the temperature;

[0050] 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 a closed state.

[0051] Further, the calm mode includes a sleep sub-mode;

[0052] The method by which the control module performs the function corresponding to the quiet mode includes: the control module collects the infant's breathing frequency information through a bioimpedance sensor and collects the infant's activity information through a three-axis acceleration sensor;

[0053] The control module determines whether the baby has entered the sleep sub-mode according to the collected information on the baby's breathing frequency and the baby's activity; if it is determined that the baby has entered the sleep sub-mode, the control module controls the player of the vehicle to be turned off.

[0054] Furthermore, the method by which the control module executes the function corresponding to the happy mode includes: the control module maintains the on state or the off state of the player of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 This is a schematic diagram of the framework corresponding to the in-car baby monitoring system in Example 1;

[0056] Figure 2 Flow chart of the method for monitoring infants in a vehicle in Example 2. DETAILED DESCRIPTION

[0057] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention:

[0058] Embodiment 1:

[0059] like Figure 1 As shown, this 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 arranged in a vehicle central control system;

[0060] The infant 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 a vehicle central control system;

[0061] 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 connection success message to the detection module when it is detected that the connection status is in progress;

[0062] The audio library is used to store standard sound information;

[0063] The detection module is used to control the sound sensor to collect baby sound information after receiving the connection success information, obtain detection information based on the baby sound information, compare the detection information with the standard sound information, and obtain baby status information based on the comparison result.

[0064] 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 got on the car; if it is determined that the baby has got on the car, the detection module controls the sound sensor to collect the baby's sound information, obtains detection information based on the baby's sound information, compares the detection information with the standard sound information, and obtains the baby's status information based on the comparison result; in an embodiment, the wireless connection signal established between the above-mentioned baby wearable device and the vehicle's central control system is also used to generate control instructions for opening the door or prohibiting the door from locking at a set speed.

[0065] The specific implementation plan 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, the vehicle speed is 0 time is not less than the set time, and the set time in the embodiment is 60 seconds. If the current door is in a locked state, the controller issues a door opening command, and the door lock actuator opens the door. The delay is set to determine whether the driver's purpose of parking is temporary parking or long-term parking during driving, so as to avoid frequent opening of the door. The above-mentioned vehicle speed of 0 can be obtained by detecting the vehicle speed sensor. The control device on the vehicle obtains the vehicle speed signal, and obtains the door status signal after the control device on the vehicle detects the wireless connection signal established between the wearable device and the vehicle central control system. If the door status signal is in a locked state, after the delay setting time, the controller issues a door opening command, and the door lock actuator opens the door.

[0066] 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 in the open state, the controller issues a command to prohibit the door lock, and the door lock actuator does not perform the door lock action. This can prevent the driver from leaving the baby in the car after getting off the car and the door is locked. The specific control device on the vehicle obtains the vehicle speed signal (the signal with a vehicle speed of 0), and obtains the door status signal after the control device on the vehicle detects the wireless connection signal established between the wearable device and the vehicle central control system. For example, the door status signal is in the open state; the controller issues a command to prohibit the door, shields the door closing command, and the door lock actuator does not perform the door locking action.

[0067] Through the above technical scheme, it is possible to utilize 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 determine the baby's emotional state in real time; there is no need to modify the hardware in the car, only the baby wearable device needs to be configured, and the central control system in the car needs to be upgraded accordingly; it solves the problem that the existing in-car baby monitoring system usually needs to install various sensors and electronic equipment in the car (for example: installing pressure sensors on the driver's seat and baby safety seat, installing audio and video sensors and other electronic equipment in the car, etc.), and the installation process involves the modification of the in-car circuit system, which has the problems of complex installation and modification work, labor-intensive and high cost.

[0068] There are many ways to wirelessly connect the wireless connection module to the vehicle's central control system, including but not limited to: Bluetooth connection, vehicle-mounted WIFI connection, etc.

[0069] Among them, the in-vehicle baby monitoring system also includes a control module arranged in the vehicle central control system;

[0070] The detection module is also used to send baby status information to the control module;

[0071] 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 component in the vehicle to perform the function corresponding to the baby care mode entered by the vehicle;

[0072] Baby care modes include happy mode, crying mode and calm mode.

[0073] By setting up a control module, the control module controls the vehicle to enter a 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 in-vehicle baby monitoring system can be used to monitor the baby in the vehicle.

[0074] The infant wearable device further includes a skin electrical activity sensor, a heart rate sensor and a temperature sensor arranged on the body;

[0075] The electrodermal activity sensor is used to obtain and transmit the baby's pressure information to the control module;

[0076] The heart rate sensor is used to obtain and transmit the baby's heart rate information to the control module;

[0077] The temperature sensor is used to obtain and transmit the baby's body temperature information to the control module;

[0078] The control module is also used to control the target functional component in the vehicle to execute the crying mode according to the received baby pressure information, baby heart rate information and baby body temperature information.

[0079] By setting up skin electrodermal activity sensors, heart rate sensors and temperature sensors, the control module can monitor the baby's emotional stress state, heart rate state and body temperature state when the baby is crying; and control the target functional components in the vehicle to provide corresponding care for the baby.

[0080] The infant wearable device further includes a bioimpedance sensor and a three-axis acceleration sensor arranged on the body;

[0081] The bioimpedance sensor is used to obtain and transmit the infant's breathing frequency information to the control module;

[0082] The three-axis acceleration sensor is used to obtain and transmit the baby's activity information to the control module;

[0083] Calm mode includes a sleep sub-mode;

[0084] The control module is also used to determine whether the baby care mode is switched to the sleep sub-mode based on the received baby breathing frequency information and baby activity information when the vehicle is in the quiet mode; and after determining that the baby care mode is switched to the sleep sub-mode, control the target functional components in the vehicle to execute the sleep sub-mode.

[0085] By setting up a bioimpedance sensor and a three-axis acceleration sensor, the control module can monitor the baby's breathing frequency and activity status when the baby is in a calm state; and determine whether the baby care mode is switched to the sleep sub-mode (that is, determine whether the baby is in a sleep state) based on the baby's breathing frequency and activity status. After determining that the baby care mode is switched to the sleep sub-mode (that is, after determining that the baby is in a sleep state), the target functional components in the vehicle are controlled to provide corresponding care for the baby.

[0086] Furthermore, the configuration form of the main body of the baby wearable device includes, but is not limited to: a bracelet, a bracelet or a watch worn on the baby's wrist, a anklet worn on the baby's ankle, a necklace worn on the baby's neck, etc.

[0087] The specific setting form of the main body of the baby wearable device is set to ensure the comfort of the baby wearing it and facilitate the installation and operation of the above-mentioned various sensors.

[0088] Embodiment 2:

[0089] like Figure 2 As shown, based on the in-vehicle baby monitoring system provided in Example 1, Example 2 further provides an in-vehicle baby monitoring method, including:

[0090] The signal connection module is used to monitor the connection status between the wireless connection module and the vehicle central control system, and when the connection status is detected, a connection success message is sent to the detection module;

[0091] The detection module detects whether the connection success information is received; if the connection success information is received, the sound sensor is controlled to collect the baby's sound information;

[0092] The detection module obtains detection information based on the collected baby sound information, compares the detection information with the standard sound information stored in the audio library, and obtains the baby status information based on the comparison result.

[0093] The specific method for the detection module to obtain detection information according to the collected baby sound information includes the following steps:

[0094] Step 1: Perform endpoint detection on the baby's sound information to determine the starting point and end point of the baby's sound information;

[0095] Step 2: Extract MFCC feature parameters of infant sound information through short-term analysis;

[0096] Step 3: Obtain detection information based on MFCC feature parameters.

[0097] The method of comparing the detection information with the standard sound information stored in the audio library and obtaining the baby status information according to the comparison result includes:

[0098] Standard sound information includes happy template, crying template and calm template;

[0099] The DTW algorithm is used to compare the detection information with the happy template, crying template and calm template respectively. The infant status information is obtained based on the template with the highest similarity to the detection information among the happy template, crying template and calm template.

[0100] In this embodiment 2, after obtaining the infant status information, the detection module sends the infant status information to the control module;

[0101] 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 component in the vehicle to perform the function corresponding to the baby care mode entered by the vehicle;

[0102] Baby care modes include happy mode, crying mode and calm mode.

[0103] In this 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 a preset audio or video;

[0104] The control module collects the baby's pressure information through the skin electrical activity sensor, collects the baby's heart rate information through the heart rate sensor, collects 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;

[0105] If the control module detects through the collected baby pressure information that the baby's current pressure value exceeds the preset pressure value, or the control module detects through the collected baby heart rate information that the baby's current heart rate value is not within the preset heart rate range, or the control module detects through the collected baby temperature information that the baby's current body temperature value is not within the preset body temperature range, the control module controls the vehicle's networking system to send an alarm message to the user terminal.

[0106] Optionally, in this embodiment 2, 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 value of the baby is greater than the maximum value of the preset body temperature range through the collected baby temperature information, the control module controls the air conditioning system of the vehicle to cool down to reduce the temperature;

[0107] 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 the vehicle to increase the temperature;

[0108] If it is detected that the baby's current body temperature is within the preset body temperature range, the control module controls the vehicle's air conditioning system to be in a closed state.

[0109] In this embodiment 2, the quiet mode includes a sleep sub-mode;

[0110] The method for the control module to execute the function corresponding to the calm mode includes: the control module collects the infant's breathing frequency information through the bioimpedance sensor and collects the infant's activity information through the three-axis acceleration sensor;

[0111] The control module determines whether the baby has entered the sleep sub-mode based on the collected baby's breathing frequency information and baby's activity information; if it is determined that the baby has entered the sleep sub-mode, the control module controls the vehicle's player to turn off.

[0112] In the second embodiment, the method for the control module to execute the function corresponding to the happy mode includes: the control module maintains the player of the vehicle in an on state or an off state.

[0113] The in-car baby monitoring system and method provided by the present invention have at least the following technical effects or advantages:

[0114] 1. 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 determined whether the baby has boarded the car; if it is determined that the baby has boarded the car, the detection module controls the sound sensor to collect the baby's sound information, obtains the detection information based on the baby's sound information, compares the detection information with the standard sound information, and obtains the baby's status information based on the comparison result; thereby realizing the information interaction between the baby wearable device and the in-vehicle central control system to determine whether the baby has boarded the car and determine the baby's emotional state in real time; there is no need to modify the in-vehicle hardware, only the baby wearable device needs to be configured, and the in-vehicle central control system needs to be upgraded accordingly; it solves the problem that the existing in-vehicle baby monitoring system usually needs to install various sensors and electronic equipment in the car (for example: installing pressure sensors on the driver's seat and baby safety seats, installing audio and video sensors and other electronic equipment in the car, etc.), and the installation process involves the modification of the in-vehicle circuit system, which has the problems of complex installation and modification work, labor consumption, and high cost.

[0115] 2. By setting up a control module, the control module controls the vehicle to enter a 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 in-vehicle baby monitoring system can be used to monitor the baby in the vehicle.

[0116] 3. By setting up skin electrodermal activity sensors, heart rate sensors and temperature sensors, 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 to provide corresponding care for the baby.

[0117] 4. By setting up a bioimpedance sensor and a three-axis acceleration sensor, the control module can monitor the baby's breathing frequency and activity status when the baby is in a calm state; and determine whether the baby care mode is switched to the sleep sub-mode (that is, determine whether the baby is in a sleep state) based on the baby's breathing frequency and activity status. After determining that the baby care mode is switched to the sleep sub-mode (that is, after determining that the baby is in a sleep state), the target functional components in the vehicle are controlled to provide corresponding care for the baby.

[0118] 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. Any technical solutions formed by equivalent transformation or equivalent replacement shall fall within the protection scope of the present invention.

Claims

1. An in-car baby monitoring system, characterized in that: Including baby wearable devices, signal connection modules, detection modules and audio libraries set in the vehicle central control system; The infant 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 sending a connection success message to the detection module when detecting that the connection state is in progress; 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, compare the detection information with the standard sound information, and obtain baby status information according to the comparison result; The in-vehicle baby monitoring system further includes a control module disposed 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 component in the vehicle to perform 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; The infant wearable device further comprises a bioimpedance sensor and a three-axis acceleration sensor arranged on the body; The bioimpedance sensor is used to obtain and transmit infant breathing frequency information to the control module; The three-axis acceleration sensor is used to obtain and transmit infant activity information to the control module; The calm mode includes a sleep sub-mode; The control module is also used to determine whether the baby care mode is transferred to the sleep sub-mode based on the received baby breathing frequency information and the baby activity information when the vehicle is in the quiet mode; and after determining that the baby care mode is transferred to the sleep sub-mode, control the target functional components in the vehicle to execute the sleep sub-mode.

2. The in-vehicle baby monitoring system according to claim 1, characterized in that: The infant wearable device further comprises a skin electrical activity sensor, a heart rate sensor and a temperature sensor arranged on the body; The electrical skin activity sensor is used to obtain and transmit infant 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 the baby's body temperature information to the control module; The control module is further used to control the target functional component in the vehicle to execute the crying mode according to the received baby pressure information, the baby heart rate information and the baby body temperature information.

3. A method for monitoring infants in a vehicle, characterized in that: The method is implemented by using the in-vehicle baby monitoring system according to any one of claims 1 to 2, comprising: The signal connection module is used to monitor the connection status between the wireless connection module and the vehicle central control system, and when the connection status is detected, a connection success message is sent to the detection module; The detection module detects whether the connection success information is received; if the connection success information is received, the sound sensor is controlled to collect the baby sound information; The detection module obtains detection information according to the collected baby sound information, compares the detection information with the standard sound information stored in the audio library, and obtains baby status information according to the comparison result; The specific method for the detection module to obtain detection information according to the collected baby sound information includes the following steps: Step 1: performing endpoint detection on the baby sound information to determine the starting point and the end point of the baby sound information; Step 2: extracting MFCC feature parameters of the baby sound information through short-term analysis; Step 3: Obtain the detection information according to the MFCC feature parameters.

4. The method for monitoring infants in a vehicle according to claim 3, characterized in that: The method of comparing the detection information with the standard sound information stored in the audio library and obtaining the baby status information according to the comparison result includes: The standard sound information includes a happy template, a crying template and a calm template; The detection information is compared with the happy template, the crying template and the calm template respectively by using the DTW algorithm, and the baby status information is obtained according to the template with the highest similarity to the detection information among the happy template, the crying template and the calm template.

5. The method for monitoring infants in a vehicle according to claim 3, characterized in that: 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 status information, and controls the target functional component in the vehicle to perform the function corresponding to the baby care mode entered by the vehicle; The baby care modes include a happy mode, a crying mode and a calm mode.

6. The method for monitoring infants in a vehicle according to claim 5, characterized in that: The method by which the control module executes the function corresponding to the crying mode includes: the control module controls a player of the vehicle to play a preset audio or video; The control module collects baby pressure information through the skin electrical activity sensor, collects baby heart rate information through the heart rate sensor, collects baby temperature information through the temperature sensor, and monitors the baby pressure information, the baby heart rate information and the baby temperature information; If the control module detects that the current pressure value of the baby exceeds the preset pressure value through the collected baby pressure information, or if the control module detects that the current heart rate value of the baby is not within the preset heart rate range through the collected baby heart rate information, or if the control module detects that the current body temperature value of the baby is not within the preset body temperature range through the collected baby temperature information, then the control module controls the networking system of the vehicle to send an alarm message to the user terminal; The method in which the control module executes the function corresponding to the happy mode includes: the control module maintains the on state or the off state of the player of the vehicle.

7. The method for monitoring infants in a vehicle according to claim 5, characterized in that: The calm mode includes a sleep sub-mode; The method by which the control module performs the function corresponding to the quiet mode includes: the control module collects the infant's breathing frequency information through a bioimpedance sensor and collects the infant's activity information through a three-axis acceleration sensor; The control module determines whether the baby has entered the sleep sub-mode according to the collected information on the baby's breathing frequency and the baby's activity; if it is determined that the baby has entered the sleep sub-mode, the control module controls the player of the vehicle to be turned off.

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