In-vehicle child detection method and device and storage medium
By acquiring vehicle status, distributed pressure point matrix resistance, and carbon dioxide concentration, the cost and privacy issues of detecting children left in vehicles are resolved, achieving safe and effective child detection and preventing children from being left in vehicles after they are locked.
Patent Information
- Application Number
- CN202511770796.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-02-24
AI Technical Summary
In existing technologies, detecting children left in vehicles requires the installation of radar or cameras, which increases costs and makes the vehicle layout more complex, and poses a risk of privacy leaks. How can we conduct effective detection while controlling costs and protecting cabin privacy?
By acquiring the on/off status of the child forgetting reminder function, the vehicle's power status, and the door lock status, a distributed pressure point matrix is used to detect the resistance under the child seat inside the vehicle. Combined with a carbon dioxide sensor to obtain the nearby carbon dioxide concentration and accumulation rate, it is determined whether a child is left behind.
It effectively detects and prevents children from being left in the car without increasing the complexity of the interior layout or protecting cabin privacy, thus improving the safety of children in the car.
Smart Images
Figure CN121564908A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of vehicle control technology, and in particular to a method, device and storage medium for detecting children inside a vehicle. Background Technology
[0002] With child forgetfulness reminders being included as an evaluation indicator in vehicle assessment procedures, the detection of children remaining in vehicles has received increasing attention. Current technologies employ radar to detect subtle movements such as breathing inside the vehicle, or use dual-spectrum cameras mounted on the cabin roof for liveness detection. However, these technologies require the prior installation of radar or cameras, increasing costs and complicating vehicle layout. Furthermore, installing cameras within the cabin poses a privacy risk. Therefore, a key challenge is finding a way to detect children inside vehicles and prevent them from remaining inside after the car is locked, while controlling costs, avoiding increased complexity in vehicle layout, and protecting cabin privacy. Summary of the Invention
[0003] This application provides a method, device, and storage medium for detecting children inside a vehicle, which can be used to prevent children from remaining inside the vehicle after it has been locked. The technical solution is as follows: On one hand, embodiments of this application provide a method for detecting children inside a vehicle, the method comprising: The system acquires the on / off status of the child forgetting reminder function, the vehicle's power-on / off status, and the door lock status. The on / off status of the child forgetting reminder function includes whether the child forgetting reminder function is on or off. The vehicle's power-on / off status includes whether the vehicle is powered on or off. The door lock status includes whether the door is locked or unlocked. In response to the activation of the child forgetting reminder function, the power-off of the vehicle, and the locking of the vehicle door, the resistance value of the distributed pressure point matrix is obtained, the distributed pressure point matrix being located below the child seat in the vehicle; In response to the resistance value of the distributed pressure point matrix being greater than the resistance threshold, the carbon dioxide concentration near the child seat in the vehicle is obtained; Calculate the carbon dioxide accumulation rate near the child seat in the vehicle based on the carbon dioxide concentration near the child seat in the vehicle. In response to the accumulation rate of carbon dioxide exceeding a rate threshold, a child is indicated to be left in the child seat in the vehicle.
[0004] On the other hand, a child detection device for use in a vehicle is provided, the device comprising: The first acquisition module is used to acquire the on / off status of the child forgetting reminder function, the power-on / off status of the vehicle, and the lock status of the doors. The on / off status of the child forgetting reminder function includes whether the child forgetting reminder function is on or off. The power-on / off status of the vehicle includes whether the vehicle is powered on or off. The lock status of the doors includes whether the doors are locked or unlocked. The second acquisition module is used to acquire the resistance value of the distributed pressure point matrix in response to the activation of the child forgetting reminder function, the power off of the vehicle, and the locking of the car door. The distributed pressure point matrix is located below the child seat in the car. The third acquisition module is used to acquire the carbon dioxide concentration near the child seat in the vehicle in response to the resistance value of the distributed pressure point matrix being greater than the resistance value threshold. The calculation module is used to calculate the carbon dioxide accumulation rate near the child seat in the vehicle based on the carbon dioxide concentration near the child seat in the vehicle; The first notification module is used to notify the child seat in the vehicle that a child is left behind when the accumulation rate of carbon dioxide exceeds a rate threshold.
[0005] On the other hand, a non-transitory computer-readable storage medium is also provided, characterized in that the computer-readable storage medium stores a computer program, which is loaded and executed by a processor to implement any of the above-described methods for detecting children in vehicles.
[0006] On the other hand, a computer program product is also provided, the computer program product including computer instructions, which, when executed by a processor, implement the steps of any of the above-described methods for detecting children in vehicles.
[0007] The technical solution provided in this application brings at least the following beneficial effects: This application determines a user's intention to prevent children from being left in the vehicle and whether the vehicle has been locked and exited by acquiring the on / off status of the child forgetfulness reminder function, the vehicle's power-on / off status, and the door lock status. If the child forgetfulness reminder function is detected as active, the vehicle is powered off, and the doors are locked, the resistance value of the distributed pressure point matrix located under the child seat is obtained and compared with a resistance threshold. If the resistance value of the distributed pressure point matrix is greater than the resistance threshold, it indicates the presence of a heavy object on the child seat. The carbon dioxide concentration near the child seat is then acquired, and the carbon dioxide accumulation rate is calculated based on the concentration. If the carbon dioxide accumulation rate is greater than a rate threshold, it indicates the presence of a child left in the child seat. This method achieves child detection in the vehicle while controlling costs, not increasing the complexity of the vehicle's interior layout, and protecting cabin privacy, thereby preventing children from being left in the vehicle after locking and improving child safety. Attached Figure Description
[0008] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0009] Figure 1 This is a schematic diagram of an implementation environment provided in an embodiment of this application; Figure 2 This is a flowchart of a method for detecting children inside a vehicle, provided in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of a child detection device in a vehicle provided in an embodiment of this application. Detailed Implementation
[0010] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.
[0011] This application provides a method for detecting children inside a vehicle. Please refer to [the relevant documentation]. Figure 1 The diagram illustrates the implementation environment of the method provided in this application embodiment. The implementation environment may include: BDM (Body Domain Module) 11, BCM (Body Control Module) 12, distributed pressure point matrix 13, carbon dioxide sensor 14, flashlight 15, horn 16, large screen on the center console 17, and vehicle audio system 18.
[0012] Optionally, BCM12 is used to acquire the vehicle's power-on / off status and the door lock / lock status and send them to BDM11; the distributed pressure point matrix is installed under the child seat in the vehicle and can generate different deformations according to the magnitude of the pressure, thus generating a resistance value change that is positively correlated with the deformation, which is used to detect whether there is a person or object above the child seat, and the detection result is reflected in the form of resistance value change and the resistance value is sent to BDM11.
[0013] For example, the carbon dioxide sensor is an infrared carbon dioxide sensor, embedded in the headrest of the child seat in the car, used to obtain the carbon dioxide concentration near the child seat and send it to BDM11; the flashlight 15 is used to light up according to the instruction of BDM11, to indicate to the user that there is a child left in the child seat in the car or to indicate to the user that there is an item left in the child seat in the car; the horn 16 is used to sound according to the instruction of BDM11, to indicate to the user that there is a child left in the child seat in the car.
[0014] In one possible implementation, the large screen 17 on the center console is used to display the text message "Child forgetting reminder function is disabled" according to the instructions of the BDM11; the car audio system 18 is used to broadcast the voice message "Child forgetting reminder function is disabled" according to the instructions of the BDM11. The BDM11, BCM12, distributed pressure point matrix 13, carbon dioxide sensor 14, strobe light 15, horn 16, large screen 17 on the center console, and car audio system 18 establish a communication connection via wired or wireless network.
[0015] Based on the above Figure 1 The implementation environment shown in this application embodiment provides a method for detecting children inside a vehicle. Figure 2 As shown, taking the application of this method to BDM as an example, the method includes steps 201-205.
[0016] In step 201, the BDM acquires the on / off status of the child forgetting reminder function, the vehicle's power-on / off status, and the door lock status. The on / off status of the child forgetting reminder function includes whether the child forgetting reminder function is on or off. The vehicle's power-on / off status includes whether the vehicle is powered on or off. The door lock status includes whether the door is locked or unlocked.
[0017] For example, users can control the on / off state of the child forgetting reminder function through the soft button corresponding to the child forgetting reminder function in the vehicle terminal APP (Application), wherein the on / off state of the child forgetting reminder function includes the child forgetting reminder function being turned on or off.
[0018] In one possible implementation, the BDM obtains the on / off status of the child forgetting reminder function, the vehicle's power-on / off status, and the door's lock status in the following ways: the BDM obtains the on / off status of the child forgetting reminder function through the in-vehicle terminal APP; and obtains the vehicle's power-on / off status and the door's lock status through the BCM, wherein the vehicle's power-on / off status includes the vehicle being powered on and powered off, and the door's lock status includes the door being locked and the door being unlocked.
[0019] Optionally, the in-vehicle terminal APP connects to the child seat via Bluetooth. When the in-vehicle terminal APP and the child seat are successfully connected for the first time, the default initial state of the child forgetting reminder function is that the child forgetting reminder function is enabled. The on / off state of the child forgetting reminder function is remembered every time the vehicle is switched from power on to power off, so as to set the on / off state of the child forgetting reminder function the next time the vehicle is powered on.
[0020] For example, the initial state of the child forgetting reminder function is set to "on" in the in-vehicle terminal APP. The BDM continuously monitors the vehicle's power-on and power-off status. If it detects that the vehicle's power-on status has changed from vehicle power-on to vehicle power-off, it remembers the current on / off state of the child forgetting reminder function and uses the remembered on / off state of the child forgetting reminder function when the vehicle is powered on again.
[0021] In step 202, in response to the activation of the child forgetting reminder function, the vehicle being powered off, and the doors being locked, the BDM obtains the resistance value of the distributed pressure point matrix, which is located below the child seat in the vehicle.
[0022] In one possible implementation, after confirming the on / off state of the child forgetting reminder function, the power-on / off state of the vehicle, and the lock state of the doors, if it is determined that the child forgetting reminder function is on, the vehicle is powered off, and the doors are locked, the BDM obtains the resistance value of the distributed pressure point matrix, wherein the distributed pressure point matrix is located below the child seat in the vehicle.
[0023] Optionally, a distributed pressure point matrix is installed under the child seat in the car. It can generate different deformations depending on the magnitude of the pressure applied, thus producing a change in resistance value that is positively correlated with the deformation, used to detect the presence of a person or object above the child seat. In one possible implementation, the sensor density of the distributed pressure point matrix can be set empirically, for example, to 256 points / square centimeter.
[0024] In step 203, in response to the resistance of the distributed pressure point matrix being greater than the resistance threshold, the BDM obtains the carbon dioxide concentration near the child seat in the vehicle.
[0025] Optionally, after obtaining the resistance value of the distributed pressure point matrix, the resistance value of the distributed pressure point matrix is compared with a resistance threshold. If the resistance value of the distributed pressure point matrix is greater than the resistance threshold, the BDM obtains the carbon dioxide concentration near the child seat in the vehicle, including: the BDM obtains the carbon dioxide concentration near the child seat in the vehicle through a carbon dioxide sensor. For example, the carbon dioxide sensor is an infrared carbon dioxide sensor and is embedded in the headrest of the child seat in the vehicle; the unit of carbon dioxide can be ppm / min.
[0026] In step 204, BDM calculates the carbon dioxide accumulation rate near the child seat based on the carbon dioxide concentration near the child seat.
[0027] In one possible implementation, after obtaining the carbon dioxide concentration near the child seat in the vehicle, the BDM calculates the carbon dioxide accumulation rate near the child seat based on the carbon dioxide concentration near the child seat, including: calculating the difference between the current carbon dioxide concentration near the child seat and the carbon dioxide concentration near the child seat a first time period to obtain a first calculation result; dividing the first calculation result by the first time period to obtain a second calculation result; and using the second calculation result as the carbon dioxide accumulation rate near the child seat.
[0028] Optionally, the BDM stores the carbon dioxide concentration near the child seat in the vehicle during the vehicle's operation, reads the carbon dioxide concentration near the child seat in the vehicle a first time period ago, and calculates the difference between the current carbon dioxide concentration near the child seat in the vehicle and the carbon dioxide concentration near the child seat in the vehicle a first time period ago to obtain a first calculation result.
[0029] For example, after obtaining the first calculation result, a second calculation result is calculated by dividing the first calculation result by the first duration, and the second calculation result is used as the carbon dioxide accumulation rate near the child seat in the car. The first duration can be set empirically, and the unit of the first duration can be minutes.
[0030] In step 205, in response to the accumulation rate of carbon dioxide exceeding a rate threshold, the BDM indicates that a child is left in the child seat.
[0031] In one possible implementation, after calculating the carbon dioxide accumulation rate, the BDM compares the carbon dioxide accumulation rate with a rate threshold. If the carbon dioxide accumulation rate is greater than the rate threshold, the BDM alerts the vehicle to the presence of a child in a child seat. Exemplarily, the BDM alerts the vehicle to the presence of a child in a child seat in the vehicle in ways including, but not limited to: continuously controlling the vehicle's hazard lights to flash at a frequency of once every third time interval for a second duration, and controlling the vehicle's horn to sound once every third time interval, where the second duration is longer than the third duration.
[0032] Optionally, during the second duration, the BDM controls the vehicle's hazard lights to flash at a frequency of once every third duration; and controls the vehicle's horn to sound once every third duration. Optionally, the second and third durations can be set empirically, requiring the second duration to be longer than the third duration. For example, the second duration can be set to 5 seconds and the third duration to 2 seconds.
[0033] In one possible implementation, in response to receiving information that the user has turned off the child forgetting reminder function, the system controls the child forgetting reminder function to be turned off; and prompts that the child forgetting reminder function has been disabled.
[0034] For example, when a user wants to turn off the child forgetting reminder function, they can turn it off via the soft button corresponding to the child forgetting reminder function in the vehicle terminal APP. At this time, the vehicle terminal APP will pop up a soft button to confirm whether to turn off the child forgetting reminder function. When the user clicks the soft button to confirm turning off the child forgetting reminder function, the vehicle terminal APP sends the information that the user has turned off the child forgetting reminder function to the BDM.
[0035] In one possible implementation, after receiving information from the user that the child forgetfulness reminder function has been disabled, the BDM controls the child forgetfulness reminder function to be disabled, including: the BDM stops acquiring the carbon dioxide concentration collected by the carbon dioxide sensor and the resistance value acquired by the distributed pressure point matrix, and stops performing subsequent calculations. Optionally, while controlling the child forgetfulness reminder function to be disabled, the BDM may indicate that the child forgetfulness reminder function has been disabled in ways including, but not limited to: the BDM displaying the text message "Child forgetfulness reminder function is disabled" on the large screen of the vehicle's center console; and the BDM broadcasting the voice message "Child forgetfulness reminder function is disabled" through the vehicle's audio system.
[0036] For example, in response to the distributed pressure point matrix having a resistance value greater than a resistance threshold and the carbon dioxide accumulation rate being less than or equal to a rate threshold, a warning is issued indicating the presence of an item lodged in a child seat. In one possible implementation, after obtaining the resistance value of the distributed pressure point matrix and the carbon dioxide accumulation rate, if the resistance value of the distributed pressure point matrix is greater than the resistance threshold and the carbon dioxide accumulation rate is less than or equal to the rate threshold, the BDM may issue a warning about the presence of an item lodged in a child seat in the vehicle in ways including, but not limited to, controlling the vehicle's hazard lights to flash at a frequency of once every fifth time interval during a fourth time period.
[0037] Optionally, the fourth and fifth durations can be set based on experience, and the fourth duration needs to be longer than the fifth duration. For example, the fourth duration can be set to 4 seconds and the fifth duration to 2 seconds.
[0038] For example, in response to the distributed pressure point matrix having a resistance value greater than a resistance threshold, a carbon dioxide accumulation rate less than or equal to a rate threshold, and the user confirming via the in-vehicle terminal APP that there is no person or object above the child seat, the BDM adjusts the resistance threshold according to the weight of the child seat, so that the adjusted resistance threshold is adapted to the currently used child seat.
[0039] In one possible implementation, the user can confirm that there are no people or objects above the child seat via a soft button on the in-vehicle terminal APP, and then input the weight of the currently used child seat through the user terminal APP, which is then sent to the BDM. The BDM then calculates the difference between the weight of the currently used child seat and the default weight of the in-vehicle child seat, and adjusts the resistance threshold based on the difference. The degree to which the resistance threshold is adjusted based on the difference can be determined in advance through experiments.
[0040] This application embodiment determines whether the user intends to prevent children from remaining in the vehicle and whether the doors have been locked and exited by acquiring the on / off status of the child forgetting reminder function, the vehicle's power-on / off status, and the door lock status. If the child forgetting reminder function is detected as on, the vehicle is powered off, and the doors are locked, the resistance value of the distributed pressure point matrix located under the child seat is acquired and compared with a resistance threshold. If the resistance value of the distributed pressure point matrix is greater than the resistance threshold, it indicates that there is a heavy object on the child seat. The carbon dioxide concentration near the child seat is then acquired, and the carbon dioxide accumulation rate is calculated based on the carbon dioxide concentration. If the carbon dioxide accumulation rate is greater than a rate threshold, it indicates that a child is remaining in the child seat. This achieves child detection in the vehicle while controlling costs, not increasing the complexity of the vehicle's interior layout, and protecting cabin privacy, thus preventing children from remaining in the vehicle after locking and improving child safety.
[0041] See Figure 3 This application provides a child detection device for use in a vehicle, the device comprising: The first acquisition module 301 is used to acquire the on / off state of the child forgetting reminder function, the power-on / off state of the vehicle, and the lock state of the doors. The on / off state of the child forgetting reminder function includes whether the child forgetting reminder function is on or off. The power-on / off state of the vehicle includes whether the vehicle is powered on or off. The lock state of the doors includes whether the doors are locked or unlocked. The second acquisition module 302 is used to acquire the resistance value of the distributed pressure point matrix in response to the activation of the child forgetting reminder function, the vehicle being powered off, and the doors being locked. The distributed pressure point matrix is located below the child seat in the vehicle. The third acquisition module 303 is used to acquire the carbon dioxide concentration near the child seat in the vehicle in response to the resistance value of the distributed pressure point matrix being greater than the resistance value threshold. Calculation module 304 is used to calculate the carbon dioxide accumulation rate near the child seat in the vehicle based on the carbon dioxide concentration near the child seat in the vehicle. The first alert module 305 is used to alert the vehicle to the presence of a child in a child seat when the accumulation rate of carbon dioxide exceeds a rate threshold.
[0042] In one possible implementation, the device further includes a second prompting module, which prompts that there are items left in the child seat in the vehicle in response to the resistance of the distributed pressure point matrix being greater than a resistance threshold and the accumulation rate of carbon dioxide being less than or equal to a rate threshold.
[0043] In one possible implementation, the calculation module 304 is used to calculate the difference between the current carbon dioxide concentration near the child seat in the vehicle and the carbon dioxide concentration near the child seat in the vehicle a first time period, to obtain a first calculation result; divide the first calculation result by the first time period to obtain a second calculation result; and use the second calculation result as the carbon dioxide accumulation rate near the child seat in the vehicle.
[0044] In one possible implementation, the first prompt module 305 is used to continuously control the vehicle's flashing lights to flash once at a frequency of once at a third time interval for a second duration, and to control the vehicle to honk its horn once at a third time interval, wherein the second duration is longer than the third duration.
[0045] In one possible implementation, the device further includes a memory module for defaulting the initial state of the child forgetting reminder function to be enabled and for remembering the on / off state of the child forgetting reminder function each time the vehicle is switched from being powered on to being powered off.
[0046] In one possible implementation, the device further includes: a control module for controlling the child forgetting reminder function to be turned off in response to receiving information from the user that the child forgetting reminder function has been turned off; and a third prompting module for prompting that the child forgetting reminder function has been deactivated.
[0047] This device detects the child forgetfulness reminder function's on / off status, the vehicle's power status, and the door lock status to determine if the user intends to prevent children from being left inside and if the vehicle has been locked and the door has been closed. If the child forgetfulness reminder function is activated, the vehicle is powered off, and the doors are locked, the device acquires the resistance value of the distributed pressure point matrix located under the child seat and compares it to a resistance threshold. If the resistance value of the distributed pressure point matrix is greater than the threshold, it indicates the presence of a heavy object on the child seat. It then acquires the carbon dioxide concentration near the child seat and calculates the carbon dioxide accumulation rate. If the carbon dioxide accumulation rate exceeds a threshold, it indicates the presence of a child left in the child seat. This device achieves child detection in the vehicle while controlling costs, not increasing the complexity of the vehicle's interior layout, and protecting cabin privacy, thus preventing children from being left inside after the vehicle is locked and improving child safety.
[0048] It should be noted that the apparatus provided in the above embodiments is only illustrated by the division of the above functional modules. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. In addition, the apparatus and method embodiments provided in the above embodiments belong to the same concept, and their specific implementation process can be found in the method embodiments, which will not be repeated here.
[0049] In an exemplary embodiment, a computer-readable storage medium is also provided, which stores at least one computer program that is loaded and executed by a processor of a computer device to enable the computer to implement any of the above-described methods for detecting children in a vehicle.
[0050] In one possible implementation, the aforementioned computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a compact disc read-only memory (CD-ROM), magnetic tape, floppy disk, and optical data storage device, etc.
[0051] In an exemplary embodiment, a computer program product or computer program is also provided, which includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform any of the above-described methods for detecting children inside a vehicle.
[0052] It should be noted that all information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data used for analysis, stored data, displayed data, etc.), and signals involved in this application have been authorized by the user or fully authorized by all parties, and the collection, use, and processing of related data must comply with the relevant laws, regulations, and standards of the relevant countries and regions. For example, the on / off status of the child forgetfulness reminder function, the vehicle's power-on / off status, the door lock / lock status, the resistance value of the distributed pressure point matrix, and the carbon dioxide concentration near the child seat in the vehicle involved in this application were all obtained with full authorization.
[0053] It should be understood that "multiple" as used in this article refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.
[0054] It should be noted that the terms "first," "second," etc. (if applicable) in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.
[0055] The above description is merely an exemplary embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this application should be included within the protection scope of this application.
Claims
1. A method for detecting children inside a vehicle, characterized in that, The method includes: The system acquires the on / off status of the child forgetting reminder function, the vehicle's power-on / off status, and the door lock status. The on / off status of the child forgetting reminder function includes whether the child forgetting reminder function is on or off. The vehicle's power-on / off status includes whether the vehicle is powered on or off. The door lock status includes whether the door is locked or unlocked. In response to the activation of the child forgetting reminder function, the power-off of the vehicle, and the locking of the vehicle door, the resistance value of the distributed pressure point matrix is obtained, the distributed pressure point matrix being located below the child seat in the vehicle; In response to the resistance value of the distributed pressure point matrix being greater than the resistance threshold, the carbon dioxide concentration near the child seat in the vehicle is obtained; Calculate the carbon dioxide accumulation rate near the child seat in the vehicle based on the carbon dioxide concentration near the child seat in the vehicle. In response to the accumulation rate of carbon dioxide exceeding a rate threshold, a child is indicated to be left in the child seat in the vehicle.
2. The method according to claim 1, characterized in that, The method further includes: In response to the resistance value of the distributed pressure point matrix being greater than the resistance threshold and the accumulation rate of carbon dioxide being less than or equal to the rate threshold, an indication is given that there are items left in the child seat in the vehicle.
3. The method according to claim 1, characterized in that, The calculation of the carbon dioxide accumulation rate near the child seat in the vehicle based on the carbon dioxide concentration near the child seat includes: Calculate the difference between the current carbon dioxide concentration near the child seat in the car and the carbon dioxide concentration near the child seat in the car one hour ago, and obtain the first calculation result; Divide the first calculation result by the first duration to obtain the second calculation result; The second calculation result is used as the carbon dioxide accumulation rate near the child seat in the vehicle.
4. The method according to claim 1, characterized in that, The notification that a child is left in the child seat in the vehicle includes: The vehicle's hazard lights are continuously activated for a second duration at a frequency of one flash at a third duration, and the vehicle is controlled to sound its horn once at a third duration, wherein the second duration is longer than the third duration.
5. The method according to claim 1, characterized in that, The method further includes: The default initial state of the child forgetting reminder function is that the child forgetting reminder function is enabled, and the on / off state of the child forgetting reminder function is remembered every time the vehicle is switched from being powered on to being powered off.
6. The method according to claim 1, characterized in that, The method further includes: In response to receiving information from the user that the child forgetting reminder function is to be turned off, the child forgetting reminder function is controlled to be turned off. The child forgetfulness reminder function has been disabled.
7. A child detection device for use in a vehicle, characterized in that, The device includes: The first acquisition module is used to acquire the on / off status of the child forgetting reminder function, the power-on / off status of the vehicle, and the lock status of the doors. The on / off status of the child forgetting reminder function includes whether the child forgetting reminder function is on or off. The power-on / off status of the vehicle includes whether the vehicle is powered on or off. The lock status of the doors includes whether the doors are locked or unlocked. The second acquisition module is used to acquire the resistance value of the distributed pressure point matrix in response to the activation of the child forgetting reminder function, the power off of the vehicle, and the locking of the car door. The distributed pressure point matrix is located below the child seat in the car. The third acquisition module is used to acquire the carbon dioxide concentration near the child seat in the vehicle in response to the resistance value of the distributed pressure point matrix being greater than the resistance value threshold. The calculation module is used to calculate the carbon dioxide accumulation rate near the child seat in the vehicle based on the carbon dioxide concentration near the child seat in the vehicle; The first notification module is used to notify the child seat in the vehicle that a child is left behind when the accumulation rate of carbon dioxide exceeds a rate threshold.
8. The apparatus according to claim 7, characterized in that, The device further includes a second prompting module, used to prompt that there are items left in the child seat in the vehicle in response to the resistance value of the distributed pressure point matrix being greater than the resistance value threshold and the accumulation rate of carbon dioxide being less than or equal to the rate threshold.
9. A computer program product comprising computer instructions that, when executed by a processor, implement the steps of the method for detecting a child in a vehicle as described in any one of claims 1 to 6.
10. A non-transitory computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, which is loaded and executed by a processor to implement the method for detecting children in a vehicle as described in any one of claims 1 to 6.