A child safety protection method

Abstract

The application provides a child safety protection method, comprising: detecting whether a child and a guardian exist in a vehicle according to a sensor; if the child exists in the vehicle but the guardian does not exist, judging that the vehicle is in a left state; obtaining a duration of the left state; if the duration exceeds a first preset threshold, reminding the guardian through an alarm system; if the duration exceeds a second preset threshold, obtaining a first environment data set in the vehicle, a second environment data set around the vehicle and a body data set of the child; if the first environment data set and / or the body data set of the child is abnormal, starting a first protection response; and if the second environment data set is abnormal, starting a second protection response. The application solves the problem that a child is left in a vehicle by a parent intentionally or unintentionally, and the vehicle cannot effectively protect the safety of the child under the supervision of the parent.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle safety, in particular to a child safety protection method. BACKGROUND

[0002] With the continuous improvement of people's living standards, cars have become a common means of transportation for people.

[0003] However, there are at least one of the following problems in the related art: occasionally in life, parents intentionally or unintentionally leave children in the car, and the vehicle cannot effectively protect the safety of the children under the lack of supervision of the parents.

[0004] For example, in a closed vehicle, the carbon dioxide concentration in the vehicle increases, causing the child to be poisoned and suffocated; or the vehicle is exposed to a high-temperature or low-temperature environment, causing the temperature in the vehicle to be too high or too low, affecting the health of the child; or a stranger with malicious intent approaches, causing the child to be threatened. SUMMARY

[0005] The technical problem solved by the present application is that occasionally in life, parents intentionally or unintentionally leave children in the car, and the vehicle cannot effectively protect the safety of the children under the lack of supervision of the parents.

[0006] To solve the above problems, the present application provides a child safety protection method, comprising: detecting whether a child and a guardian exist in a vehicle according to a sensor; if it is detected that a child exists in the vehicle but a guardian does not exist, determining that the vehicle is in a left state and obtaining a duration of the left state; if the duration exceeds a first preset threshold, reminding the guardian through an alarm system; if the duration exceeds a second preset threshold, obtaining a first environmental data set in the vehicle, a second environmental data set around the vehicle, and a body data set of the child; if it is detected that the first environmental data set and / or the body data set of the child is abnormal, starting a first protection response; if it is detected that the second environmental data set is abnormal, starting a second protection response, wherein the second environmental data set includes pedestrian data around the vehicle; if it is determined that the pedestrian data is abnormal, controlling a camera module to obtain pedestrian images and uploading the pedestrian images to an authorized device; and controlling the vehicle to be unlocked according to the first environmental data set, the body data set of the child, and feedback data of the authorized device.

[0007] Compared with the prior art, the technical effects achieved by adopting the technical scheme are as follows: when the child is left alone in the vehicle, the application can trigger different levels of safety protection measures in stages, first, the guardian is reminded in time to avoid long-term retention, second, the survival conditions in the vehicle are actively adjusted through environmental and physiological data monitoring, and finally, the vehicle door is unlocked on the premise of obtaining the appearance and identity of the pedestrian through the linkage of the behavior recognition of the external pedestrian and the authorized device, thereby avoiding the simultaneous rescue of the child by the surrounding pedestrians, greatly reducing the rescue waiting time in certain cases, and avoiding economic losses caused by damage to the vehicle and other rescue methods.

[0008] In an example of the present application, the pedestrian data includes: the distance between the vehicle and the surrounding pedestrians, the behavior data of the pedestrians; if it is judged that the pedestrian data is abnormal, the camera module is controlled to obtain the pedestrian image, and the pedestrian image is uploaded to the authorized device, including: S631, if the distance between the vehicle and the pedestrian is less than the first preset distance, it is detected whether there is a vehicle key in the range with the first preset distance as the radius; S632, if no vehicle key is detected, the behavior data of the pedestrian is obtained through the camera module, and whether there is abnormal behavior is judged according to the comparison of the behavior data and the background data, wherein the abnormal behavior includes: opening the door, breaking the window, and peering into the vehicle interior; S633, if it is judged that there is abnormal behavior, the camera module is controlled to obtain the facial image and the full-body image of the pedestrian, and all the image data obtained are uploaded to the authorized device, wherein the authorized device includes the mobile terminal of the guardian and the identity database.

[0009] Compared with the prior art, the technical effects achieved by adopting the technical scheme are as follows: through key detection, the vehicle owner and the surrounding pedestrians are distinguished, the behavior data of the surrounding pedestrians is recognized, and whether the pedestrians have abnormal behavior is judged, and the abnormal behavior includes not only rescue actions but also illegal behavior, which are difficult to clearly distinguish, therefore, the facial image and the full-body image of the pedestrian with abnormal behavior are obtained, and the image data are uploaded to the mobile terminal of the guardian and the identity database with corresponding qualifications, such as the identity database of the relevant department, so as to avoid the opportunity of the illegal person.

[0010] In an example of the present application, the vehicle is controlled to be unlocked according to the first environmental data set, the child body data set and the feedback data of the authorized device, including: S634, if the first environmental data set and / or the child body data set is abnormal, the vehicle is controlled to be unlocked under the permission condition of the guardian and the comparison condition of the identity database as the safety personnel; S635, if the first environmental data set and / or the child body data set is abnormal, the vehicle is controlled to be unlocked after the facial image and the full-body image of the pedestrian are obtained.

[0011] Compared with the prior art, the technical effects achieved by the technical scheme are as follows: the health and safety of children are the first priority; if the children in the vehicle are in good physical condition and the environment in the vehicle is normal, the vehicle can be unlocked only under the condition that the guardian remotely permits or the identity database feedbacks that the pedestrian is a safety personnel; if the children in the vehicle are in abnormal physical condition or the environment in the vehicle is abnormal and threatens the life safety of the children, unlocking is preferentially performed to make the children get rid of the dangerous situation, but the image of the pedestrian must be acquired before the unlocking is performed to avoid accidents, and the scheme can greatly guarantee the safety of children in and out of the vehicle.

[0012] In an example of the present application, the first environmental data set includes cabin temperature, cabin oxygen concentration and cabin humidity, and if it is detected that the first environmental data set and / or the child body data set is abnormal, a first protection response is started, including: if the cabin temperature is not in a preset temperature interval, starting an air conditioning system to adjust the cabin temperature to be in the preset temperature interval; if the cabin oxygen concentration is lower than a preset oxygen concentration, starting an air circulation system and controlling the vehicle window to be opened; if the cabin humidity is greater than a preset humidity, controlling the vehicle window to be closed; and if the cabin oxygen concentration is lower than the preset oxygen concentration and the cabin humidity is greater than the preset humidity, controlling a part of the vehicle window away from the child to be opened.

[0013] Compared with the prior art, the technical effects achieved by the technical scheme are as follows: the present application realizes dynamic linkage regulation and control of the environmental parameters in the vehicle, quickly recovers the comfortable environment when the temperature is abnormal, ensures air circulation when the oxygen is insufficient, and blocks the external moisture from invading when the humidity is excessive. Especially in the scenario of double abnormality of oxygen and humidity, through the control strategy of the space isolation vehicle window, necessary oxygen supplement is maintained, and the influence of humidity on the child is minimized, solving the technical defects that the traditional scheme cannot consider multiple environmental abnormalities.

[0014] In an example of the present application, the body data set includes body temperature data, if the body temperature data is lower than a first body temperature threshold, the air conditioning system is controlled to adjust the cabin temperature to a higher side of a preset temperature interval; and if the body temperature data is higher than a second body temperature threshold, the air conditioning system is controlled to adjust the cabin temperature to a lower side of the preset temperature interval.

[0015] Compared with the prior art, the technical effects achieved by the technical scheme are as follows: the present application can dynamically select the optimal temperature adjustment direction according to the real-time body temperature state of the child, and preferentially adopts the adjustment strategy that is most effective for the current abnormal body temperature on the premise that the environmental temperature is maintained in a safe interval. When the body temperature is too low, the upper limit temperature of the interval is raised to accelerate warming, and when the body temperature is too high, the lower limit temperature of the interval is lowered to strengthen heat dissipation, which avoids the adjustment lag caused by fixed temperature setting and prevents secondary injury caused by temperature mutation.

[0016] In an example of the present application, if it is detected that the second environmental data set is abnormal, the second protection response is started, and further comprising: obtaining vehicle condition data around the carrier, and controlling the central control system to determine whether there is a collision risk according to the vehicle condition data; if it is determined that there is a collision risk, predicting the collision level according to the vehicle condition data; and performing a hierarchical warning according to the predicted collision level.

[0017] Compared with the prior art, the technical effects achieved by adopting the technical scheme are: the present application effectively solves the problem that the protection measures cannot be dynamically adjusted when there is a collision risk around the carrier. By predicting the collision level through real-time analysis of the vehicle condition data, the corresponding protection mechanism can be started according to different danger levels, which not only avoids the excessive consumption of safety devices in low-risk scenarios, but also ensures timely and effective protection in high-risk scenarios. The introduction of the hierarchical warning mechanism enables the safety system to reasonably allocate resources according to the actual threat level, ensuring the safety of children while optimizing the operating efficiency of the vehicle-mounted equipment.

[0018] In an example of the present application, the collision level includes low risk, medium risk and high risk; if it is determined to be low risk or medium risk, the airbag is controlled to be pre-inflated; and if it is determined to be high risk, the airbag is controlled to be fully deployed.

[0019] Compared with the prior art, the technical effects achieved by adopting the technical scheme are: the present application can implement differentiated protection according to different collision risk levels in the unattended state of the vehicle. In a low-risk scenario, the safety system is maintained in a standby state to avoid wasting airbag resources due to misoperation; in a medium-risk scenario, the response time of the safety device is shortened to prepare for possible collisions; and in an emergency high-risk scenario, comprehensive protection is immediately started to minimize the harm caused to children by the collision impact.

[0020] In an example of the present application, if the duration exceeds the second preset threshold, after obtaining the first environmental data set in the carrier, the second environmental data set around the carrier and the body data set of the child, the method further comprises: obtaining the remaining power of the carrier, and if it is predicted that the remaining power cannot support the first protection response and / or the second protection response for more than a preset duration, starting a third protection response.

[0021] Compared with the prior art, the technical effects achieved by adopting the technical scheme are: the present application solves the problem that the carrier cannot maintain the safety protection response due to insufficient remaining power, such as uncontrolled temperature in the vehicle due to sudden power failure of the air conditioning system, or failure to issue an alarm in time after the collision warning system fails. Through the cooperative action of the remaining power prediction and the third protection response, it is ensured that the basic safety protection can still be maintained through low-power means in the critical state of insufficient energy, avoiding exposing children to dangerous environments due to the failure of the protection system.

[0022] In an example of the present application, if the duration exceeds the second preset threshold, after obtaining the first environmental data set in the vehicle, the second environmental data set around the vehicle, and the physical data set of the child, the third protection response is started if the duration exceeds the third preset threshold.

[0023] Compared with the prior art, the technical effects achieved by adopting the technical scheme are as follows: the present application can automatically start external rescue when the child is left for a long time and the previous protection measures fail, effectively shortening the rescue response time.

[0024] In an example of the present application, the third protection response includes: controlling the alarm system to send the address of the vehicle and the rescue information to the relevant department; starting the local vehicle loudspeaker to broadcast the rescue information through the vehicle loudspeaker to the surrounding of the vehicle; wherein, if a signal of external pedestrian responding to the rescue information is received, the vehicle is unlocked, and the camera is triggered to obtain the image of the whole body of the pedestrian.

[0025] Compared with the prior art, the technical effects achieved by adopting the technical scheme are as follows: the present application solves the problem that the child cannot obtain external rescue in time when left for a long time, realizes accurate pushing and rapid response of rescue request, avoids the risk of secondary injury caused by environmental closure, and ensures the traceability of the rescue process through image recording.

[0026] After adopting the technical scheme of the present application, the following technical effects can be achieved:

[0027] (1) The present application can automatically identify the risk state of the child left in the vehicle through multi-dimensional environmental and physical sign monitoring, and detect the abnormalities of the vehicle environment, the surrounding outside the vehicle, and the physical health data of the child in real time;

[0028] (2) The system has a multi-level early warning and protection mechanism, which can automatically start the vehicle systems such as air conditioner, window, alarm, etc. according to different risk types and levels, effectively protecting the safety and health of the child;

[0029] (3) Support for automatically sending help information to relevant departments and guardians when the risk is high or the power is insufficient, and intelligent linkage of sound and light alarm, driving safety system, to realize all-round and graded child safety protection. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings to be used in the embodiment description will be briefly introduced as follows: obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings;

[0031] Figure 1A flowchart of a child safety protection method provided by the present application is shown in FIG. 1.

[0032] Figure 2 A flowchart of a cabin temperature adjustment process is shown in FIG. 2.

[0033] Figure 3 A flowchart of a cabin oxygen content detection and humidity adjustment process is shown in FIG. 3.

[0034] Figure 4 A flowchart of a pedestrian abnormal behavior detection process around the vehicle is shown in FIG. 4. DETAILED DESCRIPTION

[0035] The embodiments of the present application will be described below with reference to the accompanying drawings. Figures 1 to 4 The technical solutions in the present application are described clearly and completely, and it is obvious that the described embodiments are only some of the embodiments of the present application, but not all the embodiments. The components of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application. It should be noted that similar reference numerals and letters in the following drawings represent similar items, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. Meanwhile, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0036] In the prior art, cars have been widely used as the main means of transportation, but when the guardian temporarily leaves the vehicle, the child is often left alone in the vehicle. The traditional vehicle safety system usually only has a door locking or simple alarm function, and cannot effectively identify whether a child is left in the vehicle, and lacks an active monitoring mechanism for abnormal environments in the vehicle and external threats. For example, in a high-temperature environment in summer, the temperature in the closed vehicle cabin can rise to a dangerous level in a short time, and the existing system cannot identify the child's stay state, nor can it actively intervene in the temperature anomaly, resulting in the risk of dehydration or heatstroke for the child.

[0037] To solve the above problems, the inventors found that the existing safety system has three core defects: unable to accurately identify the coexistence state of children and guardians, lack of grading judgment mechanism for stay duration, and lack of multi-dimensional response strategy for environmental abnormalities. By analyzing the occurrence regularity of child safety incidents, it is found that the guardian's short-time leaving the vehicle and long-time staying have different risk levels, and a phased protection mechanism needs to be established. Based on this, it is proposed to divide the stay duration into two key threshold stages, trigger guardian reminders in the first stage, and introduce environmental data monitoring and active protection in the second stage, forming a progressive safety protection system.

[0038] Therefore, the present application provides a child safety protection method, comprising: detecting whether a child and a guardian are present in the vehicle according to a sensor; if a child is detected to be present in the vehicle but no guardian is present, determining that the vehicle is in a stay state and obtaining the duration of the stay state; if the duration exceeds a first preset threshold, reminding the guardian through an alarm system; if the duration exceeds a second preset threshold, obtaining a first environmental data set in the vehicle, a second environmental data set around the vehicle, and a child body data set; if the first environmental data set and / or the child body data set is detected to be abnormal, starting a first protection response; if the second environmental data set is detected to be abnormal, starting a second protection response, wherein the second environmental data set includes pedestrian data around the vehicle; if it is determined that the pedestrian data is abnormal, controlling a camera module to obtain pedestrian images and uploading the pedestrian images to an authorized device; and controlling the vehicle to be unlocked according to the first environmental data set, the child body data set, and feedback data from the authorized device.

[0039] Optionally, the child safety protection method described above can be applied to child safety seats, vehicles, and other applicable scenarios.

[0040] Specifically, the sensor detection is a technology for identifying the presence of a human body in the vehicle through an infrared thermal imaging sensor or a pressure sensor. Specifically, a seat pressure sensor matrix and a roof infrared dual-mode detection system can be used to achieve this, which is used to distinguish the body characteristics of children and adults.

[0041] Further, the stay state determination refers to a logical judgment triggered when a target with child body characteristics is detected to be alone. This is achieved through image recognition algorithms to analyze sensor data, which is used to accurately identify child-only scenarios.

[0042] Further, the duration of the stay state refers to the time parameter that is continuously counted from the time the stay state is determined. This is achieved through the linkage of a vehicle-mounted timer and the vehicle's off state, which is used to quantify the risk level of children being alone.

[0043] Further, the first environmental data set includes temperature, oxygen concentration and other key indicators in the enclosed space, which are collected by in-vehicle environmental sensors and used to evaluate the survival suitability of the microenvironment in which the child is located.

[0044] Further, the second environmental data set relates to the distance and behavior characteristics of pedestrians around the vehicle, which are perceived by the fusion of millimeter wave radar and camera and realized by comparison with historical database characteristics, and used to identify potential external threats.

[0045] Further, the body data set includes physiological indicators such as the child's body temperature, which are realized by wearable devices or non-contact infrared temperature measurement, and used to monitor the child's real-time physiological state.

[0046] Specifically, when the sensor detects that only the child is present in the vehicle, the system automatically enters the stay state monitoring mode. The timing module continuously records the time when the child is alone, and when the first preset threshold is reached, the vehicle communication module sends an alarm message to the guardian's mobile terminal. If the guardian does not return in time and the timing exceeds the second preset threshold, the system starts multi-dimensional data acquisition: the in-vehicle environmental data are obtained by the temperature and humidity sensor, the distance of the surrounding pedestrians is monitored by the vehicle radar, and the child's body temperature data are obtained by the infrared temperature measurement device. When the in-vehicle temperature exceeds the safe range or the child's body temperature is abnormal, the air conditioner temperature control and air circulation are automatically started; when the pedestrian is abnormally close, the suspicious behavior image is recorded and uploaded to the authorized device for identity recognition.

[0047] In an example of the present application, the pedestrian data includes: the distance between the vehicle and the surrounding pedestrians, and the behavior data of the pedestrians; if it is judged that the pedestrian data is abnormal, the camera module is controlled to obtain the pedestrian image, and the pedestrian image is uploaded to the authorized device, including: S631, if the distance between the vehicle and the pedestrian is less than the first preset distance, it is detected whether there is a vehicle key in the range with the first preset distance as the radius; S632, if no vehicle key is detected, the behavior data of the pedestrian is obtained by the camera module, and according to the comparison of the behavior data with the background data, it is judged whether there is abnormal behavior, wherein the abnormal behavior includes: opening the door, breaking the window, and peering into the vehicle interior; S633, if it is judged that there is abnormal behavior, the camera module is controlled to obtain the face image and the full-body image of the pedestrian, and all the image data obtained are uploaded to the authorized device, wherein the authorized device includes the guardian's mobile terminal and the identity database.

[0048] The distance between the person and the vehicle is less than the first preset distance, which means that the real-time distance between the vehicle and the surrounding pedestrians is lower than the safety alert value, and specifically, millimeter wave radar ranging technology can be used to achieve this, which is used to preliminarily identify potential threat targets entering a dangerous area. Detecting the presence of a vehicle key means verifying whether the vehicle control authority holder is present, which can be achieved using Bluetooth signal strength detection or RFID radio frequency identification technology, and is used to distinguish between normal operation of guardians and illegal intrusion behavior.

[0049] Further, the camera module acquires behavior data by capturing the motion characteristics of pedestrians through image acquisition devices, which can be achieved using vehicle-mounted surround-view cameras in combination with skeleton keypoint recognition algorithms, and is used to accurately analyze human posture and motion.

[0050] Specifically, when the millimeter wave radar detects that a pedestrian enters a warning area centered on the vehicle with a radius equal to the first preset distance (e.g. 1.5 meters), the system immediately starts the key detection program. If no valid key signal is found within the specified range, the vehicle-mounted camera is activated to capture pedestrian behavior video stream at a rate of 30 frames per second. Real-time analysis of video data is performed using a convolutional neural network, focusing on identifying window-breaking features such as hand contact with the window, tool striking the glass, and door-opening features such as pulling the door handle and prying the door. When actions that match the pre-set dangerous behavior patterns are detected, two independent processes are triggered simultaneously: on the one hand, the panoramic camera is controlled to capture 1080P resolution images and store them in an encrypted storage unit, and on the other hand, the vehicle-mounted buzzer is driven to emit intermittent warning sound waves at a strength of 85 decibels.

[0051] It should be noted that pedestrian data anomalies indicate that the pedestrian has intentions such as opening the door, breaking the window, and peering into the vehicle interior, etc. These abnormal behaviors may not necessarily be illegal acts by criminals, but may be behaviors of pedestrians who find children left inside the vehicle. The behavior and action of the two are similar and difficult to clearly define, therefore, the camera module acquires the face image data and full-body image data of the pedestrian and sends them to the authorized device, which is the logged-in guardian mobile device, which can be logged in by multiple guardians. The authorized device also includes an identity database, which compares the results and sends them to all guardian mobile devices. The guardians click the permission conditions on the mobile devices, and the vehicle is unlocked.

[0052] The identity database comparison result includes safe personnel, suspicious personnel, illegal personnel and non-matching personnel. The safe personnel is personnel without illegal records and with clear image features; the suspicious personnel is personnel with unclear image features or suspicious records; the illegal personnel is personnel with illegal behavior records; and the non-matching personnel is non-native international personnel or personnel without matching features of the image features. The guardian can modify the suspicious personnel and the non-matching personnel to the safe personnel or the illegal personnel through the image confirmation. If the personnel is determined to be the illegal personnel, an alarm is immediately given through a built-in alarm of the vehicle, and the vehicle window is controlled to be closed and the vehicle door is controlled to be locked.

[0053] In an example of the present application, the unlocking of the vehicle is controlled according to the first environment data set, the child body data set and the feedback data of the authorized device, including: S634, if the first environment data set and / or the child body data set is normal, the vehicle is unlocked under the permission of the guardian or under the condition that the identity database comparison is safe personnel; and S635, if the first environment data set and / or the child body data set is abnormal, the face image and the full-body image of the pedestrian are acquired, and then the vehicle is unlocked.

[0054] Specifically, if one or more of the following conditions exists in the vehicle, such as low oxygen content in the vehicle, high or low temperature in the vehicle, high humidity in the cabin, high or high temperature of the child, or loud crying, it is determined that the health and safety of the child is threatened, and the child needs to be quickly removed from the closed environment of the vehicle. Therefore, if the pedestrian with abnormal behavior exists, the vehicle is preferentially unlocked under the condition that the face image and the full-body image of the pedestrian are acquired, so as to make the child escape.

[0055] In an example of the present application, the first environment data set includes the temperature in the cabin, the oxygen concentration in the cabin and the humidity in the cabin. If it is detected that the first environment data set and / or the child body data set is abnormal, a first protection response is started, including: if the temperature in the cabin is not in a preset temperature range, the air conditioning system is started to adjust the temperature in the cabin to be in the preset temperature range; if the oxygen concentration in the cabin is lower than a preset oxygen concentration, the air circulation system is started and the vehicle window is controlled to be opened; and if the humidity in the cabin is greater than a preset humidity, the vehicle window is controlled to be closed. If the oxygen concentration in the cabin is lower than the preset oxygen concentration and the humidity in the cabin is greater than the preset humidity, the vehicle window away from the child is controlled to be opened.

[0056] The preset temperature range refers to a temperature range set according to the child's thermal comfort, which can be realized by using a temperature sensor to monitor in real time and compare with a preset threshold value, so as to ensure that the temperature in the cabin is in a safe and comfortable range.

[0057] Further, the air circulation system refers to a device for adjusting the air quality in the cabin, which can be realized by using the vehicle-mounted ventilation equipment and the external fresh air system to control linkage, and is used for supplementing fresh air when the oxygen concentration is insufficient.

[0058] Further, the window control refers to an actuator for adjusting the opening and closing state of the window according to the change of the environmental parameters, which can be realized by using the motor to drive the window lifting module, and is used for balancing the contradiction between the ventilation demand and the humidity control. The part of the window away from the child opening strategy refers to preferentially opening the window far away from the child seat, which can be realized by using the position sensor to identify the child seat and then controlling the corresponding window actuator to move, and is used for reducing the influence of external humidity on the child while ensuring the ventilation volume.

[0059] Optionally, when the outside is rainy weather, the rainwater entering the inside of the vehicle is controlled by controlling the opening degree of the window, and the air exchange between the inside and outside of the vehicle is realized at the same time.

[0060] Specifically, when the temperature anomaly is detected, the air conditioning system is activated to adjust the cabin temperature to the safe range, for example, starting the cooling mode when the temperature is higher than 35℃, and starting the heating mode when the temperature is lower than 10℃. In the case of insufficient oxygen concentration, the air circulation system and the window opening work cooperatively, for example, starting the external circulation mode and opening the sunroof when the oxygen concentration is lower than 18%. For the humidity anomaly, the window closing instruction is executed to prevent the external humid air from entering, for example, automatically closing all windows when the humidity is higher than 70%. In the special working condition of oxygen and humidity double anomaly, the system preferentially opens the window farthest from the child seat.

[0061] When it is detected that the child is left alone for more than a second preset threshold, the system synchronously starts the in-vehicle environment monitoring, the outside environment scanning and the child physiological state acquisition. The cabin temperature is fed back in real time by a distributed temperature sensor network, and the temperature control adjustment is triggered when the temperature exceeds the preset interval. The cabin oxygen concentration is monitored by a multi-point gas sensor, and whether to preferentially ventilate or dehumidify is judged in combination with the humidity sensor data. The distance between the vehicle and the person outside the vehicle is dynamically measured by a surrounding radar array, and the camera captures the posture features of the pedestrian to identify the abnormal approaching behavior. The vehicle condition data is integrated from the vehicle ADAS system and the roadside unit to evaluate whether the surrounding vehicle motion trajectory constitutes a collision threat. The body temperature data is periodically acquired by a non-contact infrared sensor, and is cross-verified with the cabin temperature data to avoid misjudgment of the child's heat stress state.

[0062] In an example of the present application, the body data set includes body temperature data, if the body temperature data is lower than a first body temperature threshold, the air conditioning system is controlled to adjust the cabin temperature to a higher side in a preset temperature interval; if the body temperature data is higher than a second body temperature threshold, the air conditioning system is controlled to adjust the cabin temperature to a lower side in the preset temperature interval.

[0063] wherein the body temperature data refers to the temperature data of the child's body surface collected by an infrared sensor or a wearable device, which can be realized by a non-contact infrared temperature measurement module, for real-time monitoring of the child's body temperature changes. The first body temperature threshold refers to the lowest body temperature critical value that triggers temperature up-regulation, which can be 35.5 degrees Celsius, for example, and the environment temperature needs to be raised when the body temperature is lower than this value. The second body temperature threshold refers to the highest body temperature critical value that triggers temperature down-regulation, which can be 37.5 degrees Celsius, for example, and the environment temperature needs to be lowered when the body temperature is higher than this value. The preset temperature range refers to the temperature range set according to the child's comfort feeling, for example, 20-25 degrees Celsius, the higher side can be the temperature value near the upper limit of the range, and the lower side can be the temperature value near the lower limit of the range.

[0064] Further, the air conditioning system refers to a vehicle-mounted temperature control device with bidirectional temperature regulation function, which can be realized by a variable frequency compressor working in cooperation with an electric heater, for accurate temperature regulation within the preset range.

[0065] Specifically, when the infrared temperature measurement module detects that the child's body temperature is continuously lower than the first body temperature threshold, the air conditioning system automatically sets the target temperature to the upper limit value of the preset range, for example, 25 degrees Celsius, and raises the cabin temperature through the electric heater; when it is detected that the body temperature is continuously higher than the second body temperature threshold, the air conditioning system adjusts the target temperature to the lower limit value of the preset range, for example, 20 degrees Celsius, and starts the refrigeration cycle through the compressor. The temperature regulation process adopts a gradient change mode, with a temperature change amplitude controlled within 2-3 degrees Celsius per hour, to avoid discomfort of the child caused by sudden temperature changes. During the regulation process, the temperature sensor feeds back the cabin temperature data in real time, forming a closed loop control, until the body temperature data returns to the normal range.

[0066] wherein the cabin temperature refers to the temperature inside the vehicle, which can be realized by arranging temperature sensors on the top of the vehicle cabin or under the seats, for monitoring the temperature changes in the closed space where the child is located.

[0067] Further, the cabin oxygen concentration refers to the percentage of oxygen content in unit volume of air, which can be realized by installing an electrochemical oxygen sensor near the air outlet of the air conditioner, for judging whether the air in the vehicle meets the breathing requirements.

[0068] Further, the cabin humidity refers to the proportion of water vapor content in the air, which can be realized by integrating a capacitive humidity sensor on the inside of the vehicle door, for evaluating the comfort level of the vehicle environment.

[0069] Further, a millimeter wave radar or a camera combined with an image recognition algorithm can be used to identify the distance between pedestrians near the vehicle and the vehicle, for identifying potential close threats.

[0070] Further, the behavior data of the pedestrian refers to human action feature information, which can be captured by a vehicle-mounted camera and analyzed through a machine learning model, and is used to determine whether there is a broken window or door opening intention.

[0071] Further, the vehicle condition data refers to vehicle driving state and surrounding traffic environment information, which can be realized by a vehicle-mounted radar, ultrasonic sensor and V2X communication module, and is used to predict collision risks.

[0072] Further, the body temperature data refers to the temperature value of the child's body surface or body, which can be realized by integrating an infrared temperature measurement module into a seat belt buckle or a wearable device, and is used to monitor physiological state abnormalities.

[0073] In an example of the present application, if it is detected that the second environment data set is abnormal, a second protection response is started, further comprising: obtaining vehicle condition data around the vehicle, controlling the central control system to determine whether there is a collision risk according to the vehicle condition data; if it is determined that there is a collision risk, predicting the collision level according to the vehicle condition data; and performing a graded warning according to the predicted collision level.

[0074] Among them, the vehicle condition data refers to vehicle operating state information, which can be realized by real-time vehicle speed, acceleration, braking state and surrounding vehicle distance data collected by a vehicle-mounted sensor, and is used to build a vehicle dynamic operation model. The collision risk refers to the possibility of contact between the vehicle and the external object, which can be realized by radar ranging devices and visual recognition systems to detect the distance and relative speed of the front obstacle, and is used to establish a collision probability calculation model. The collision level refers to the damage degree of the potential collision event to the vehicle, which can be realized by matching and analyzing historical collision data and current driving parameters by using a machine learning algorithm, and is used to divide different safety thresholds of different risk levels. The graded warning refers to taking differentiated protection measures for different risk levels, which can be realized by using a multi-level trigger mechanism to control the working mode of the safety device, and is used to realize the optimal configuration of the protection resources.

[0075] Specifically, when the vehicle-mounted sensor detects abnormal vehicle condition data around the vehicle, the central control system inputs the real-time vehicle speed and the obstacle distance into the collision probability calculation model. By calculating the relationship between the relative speed of the two vehicles and the braking distance, it is determined whether there is a rear-end collision risk. If the collision risk is identified, the system further analyzes the obstacle mass, the collision angle and the vehicle structure strength parameters, and outputs three collision levels of low, medium and high by using a pre-trained risk assessment model. For the low risk level, only the warning prompt sound is activated to remind the surrounding vehicles; for the medium risk level, the safety airbag is triggered to prepare for inflation; and for the high risk level, all safety airbags are directly deployed and the brake system is linked to emergency braking.

[0076] In an example of the present application, the collision level includes low risk, medium risk, and high risk; if judged as low risk or medium risk, the airbag is controlled to pre-inflate; if judged as high risk, the airbag is controlled to fully deploy.

[0077] The collision level refers to the potential collision hazard degree calculated according to the acceleration, obstacle distance, and vehicle speed data collected by the vehicle sensor, and can be divided by a multi-dimensional data fusion algorithm combined with a preset threshold interval to quantitatively evaluate the emergency degree of the accident. The pre-inflation refers to the airbag control module sending a partial inflation instruction to the airbag inflation device, which can be realized by a staged inflation control circuit to keep the airbag in a triggered state but not fully deployed. The fully deployed refers to the airbag control module sending a maximum power inflation instruction to the inflation device, which can be realized by a high-pressure gas instantaneous release mechanism to make the airbag reach the maximum protection volume before the collision occurs.

[0078] Specifically, when the vehicle is in an unattended state, the collision risk level is determined by monitoring the surrounding traffic data in real time. In the low-risk or medium-risk scenario, for example, when the distance between the vehicle and the obstacle is detected to be at the critical value but the relative speed is low, the airbag performs a pre-inflation operation to make the internal pressure of the airbag reach a standby state. At this time, the airbag is in a semi-deployed state, which can shorten the response time of subsequent full inflation and avoid resource waste caused by misjudgment. When a high-risk scenario is detected, for example, when the vehicle approaches the obstacle at high speed and the braking distance is insufficient, the airbag immediately triggers the full deployment program to ensure that an effective buffer barrier is formed at the moment of collision. This graded response mechanism dynamically matches the protection strength with the risk level to achieve optimal allocation of safety protection resources.

[0079] In an example of the present application, if the duration exceeds the second preset threshold, after obtaining the first environmental data set in the vehicle, the second environmental data set around the vehicle, and the child's body data set, the method further comprises: obtaining the remaining power of the vehicle, and if the predicted remaining power cannot support the first protection response and / or the second protection response for more than a preset duration, starting a third protection response.

[0080] The remaining power refers to the total amount of power currently stored in the battery of the vehicle, which can be calculated in real time by the battery management system based on voltage and current data, and is used to evaluate the energy basis for maintaining the operation of the protection system. The preset time length refers to the minimum guarantee time required for the protection response, which can be 30 minutes or 1 hour, for example, and is set according to the typical power consumption of devices such as air conditioners and alarms, and is used to establish a power demand benchmark. The third protection response refers to an emergency measure triggered when the power is insufficient, such as sending a help signal to an external platform or unlocking the vehicle door, which is executed through the vehicle communication module or the central control system, and is used to switch to a low-power safety mode in an energy critical state.

[0081] Specifically, after detecting that the vehicle is in a detention state and exceeds the second preset threshold, the remaining power is obtained by the battery management system, and based on the power consumption parameters of protection devices such as air conditioners, air circulators, and alarms, it is predicted whether the remaining power can support the preset time length. If the prediction result does not meet the demand, the third protection response is triggered immediately, such as sending a low power alarm to the guardian's mobile phone through the vehicle communication module, while controlling the central control system to unlock the vehicle door for external rescue. In this process, the real-time monitoring and prediction mechanism of the remaining power can avoid the failure of the protection system due to sudden power depletion, and the hierarchical start-up strategy of the third protection response ensures that critical safety measures are performed first when the energy is insufficient.

[0082] In an example of the present application, if the duration exceeds the second preset threshold, after obtaining the first environmental data set in the vehicle, the second environmental data set around the vehicle, and the child's body data set, the third protection response is started if the duration exceeds the third preset threshold.

[0083] The third preset threshold refers to a time threshold for determining whether a child is detained in a vehicle that needs to start an external help mechanism, which can be realized by the vehicle timing module in combination with the threshold database, for example, when the timing module detects that the detention time exceeds 36 hours, the response is triggered. The third protection response refers to an emergency intervention measure executed through external communication and local devices, which can be realized by the vehicle communication module in combination with the alarm system, for example, sending help information to the relevant department system and starting the vehicle horn to broadcast voice.

[0084] In some specific embodiments, the third preset threshold can be dynamically adjusted according to seasonal factors, for example, set to 3 hours in high temperature environment in summer and 6 hours in low temperature environment in winter. The communication mode of the third protection response can preferentially select a cellular network, and automatically switch to a satellite communication mode when the signal strength is insufficient. The vehicle horn broadcast content can include key information such as the child's age, health status, etc., for example, "there is a 3-year-old child in the vehicle, with abnormal body temperature, requesting emergency assistance".

[0085] Specifically, when the child in the vehicle is in an unattended state, the system continuously monitors the length of stay. If the length of time exceeds a second preset threshold, the system has collected environmental and body data and performed preliminary protection measures. When the duration further accumulates to a third preset threshold, it indicates that the regular protection means fails to remove the risk state. At this time, the system automatically triggers a third protection response, sends the vehicle positioning information and help-seeking signal to the relevant department platform through the vehicle-mounted communication module, and simultaneously starts the vehicle-mounted loudspeaker to play the help-seeking voice in a loop. If an external pedestrian responds to the help-seeking, the system will unlock the vehicle and start the camera to record the image of the contact person, forming a complete emergency handling process.

[0086] In one example of the present application, the third protection response includes: controlling the alarm system to send the address of the vehicle and the help-seeking information to the relevant department; starting the local vehicle-mounted loudspeaker to broadcast the help-seeking voice to the surrounding area of the vehicle through the vehicle-mounted loudspeaker; wherein, if a signal is received that an external pedestrian responds to the help-seeking information, the vehicle is unlocked and the camera is triggered to record the full-body image of the pedestrian.

[0087] Among them, the alarm system refers to a vehicle-mounted device that can automatically send positioning and help-seeking information to external rescue agencies, which can be realized by the combination of a vehicle-mounted communication module and a cloud server, and is used to ensure that professional rescue forces intervene in time. The vehicle-mounted loudspeaker refers to an acoustic alarm device installed inside or outside the vehicle, which can be realized by a directional loudspeaker or a surround sound system, and is used to expand the scope of help-seeking to attract the attention of nearby pedestrians.

[0088] Further, the help-seeking information refers to a standardized data packet containing the location of the vehicle, the state of the child and the emergency, which can be generated by combining a pre-set template with real-time sensor data, and is used to improve the accuracy of information transmission. Unlocking the vehicle refers to the operation of releasing the electronic lock state of the vehicle door, which can be realized by driving the lock motor through the vehicle control unit after receiving the external signal, and is used to allow external rescuers to enter the vehicle. The camera refers to an image acquisition device with panoramic shooting function, which can be realized by a vehicle-mounted camera arranged at multiple angles, and is used to record the rescue process and store image evidence.

[0089] Specifically, when the child in the vehicle is in a long-time stay and there is an emergency risk, the alarm system first sends the real-time positioning information of the vehicle and the standardized help-seeking information to the relevant department command center, triggering the professional rescue process. At the same time, the vehicle-mounted loudspeaker continuously broadcasts voice help-seeking information containing the description of the child's state, covering the area around the vehicle. If a pedestrian receives the help-seeking information and actively sends a response signal through a mobile terminal or an external interactive interface of the vehicle, the vehicle control unit immediately releases the lock state of the vehicle door, allowing the pedestrian to implement rescue. In this process, the cameras arranged inside and outside the vehicle automatically start and record the full-body image of the pedestrians approaching the vehicle, and the data is encrypted and stored in the vehicle storage module.

[0090] In summary, as shown in Figure 1 Fig. 1, a flow of a child safety protection method is shown as follows:

[0091] S1, detecting whether there is a child and a guardian in the vehicle according to a sensor;

[0092] S2, if it is detected that only a child is in the vehicle, determining that the vehicle is in a stay state;

[0093] S3, obtaining a duration of the stay state;

[0094] S4, if the duration exceeds a first preset threshold, reminding the guardian through an alarm system;

[0095] S5, if the duration exceeds a second preset threshold, obtaining environmental data inside and outside the vehicle and child body data;

[0096] S6, executing a first protection response and a second protection response according to abnormal situations of the environmental data inside and outside the vehicle and the child body data;

[0097] S7, if it is detected that the remaining power cannot support the first protection response and / or the second protection response, executing a third protection response;

[0098] S8, if the duration exceeds a third preset threshold, executing the third protection response.

[0099] As shown in Figures 2 to 4 Fig. 2, the step S6 includes:

[0100] A cabin temperature adjustment flow is shown as follows:

[0101] S611, obtaining a cabin temperature;

[0102] S612, determining whether the cabin temperature is in a preset temperature interval;

[0103] S613, if no, controlling an air conditioning system to adjust the cabin temperature to be in the preset temperature interval;

[0104] S614, if yes, obtaining child body temperature data;

[0105] S615, if the body temperature data is lower than a first body temperature threshold, controlling the air conditioning system to adjust the cabin temperature to a higher side of the preset temperature interval;

[0106] S616, if the body temperature data is higher than a second body temperature threshold, controlling the air conditioning system to adjust the cabin temperature to a lower side of the preset temperature interval.

[0107] A cabin oxygen content detection and humidity adjustment flow is shown as follows:

[0108] S621, acquire the oxygen concentration in the cabin and the humidity in the cabin;

[0109] S622, if the oxygen concentration in the cabin is lower than the preset oxygen concentration, start the air circulation system and control the vehicle window to open;

[0110] S623, if the oxygen concentration in the cabin is higher than the preset oxygen concentration, but the humidity in the cabin is greater than the preset humidity, control the vehicle window to close;

[0111] S624, if the oxygen concentration in the cabin is lower than the preset oxygen concentration, and the humidity in the cabin is greater than the preset humidity, control the part of the vehicle window away from the child to open.

[0112] The process of detecting abnormal behavior of pedestrians around the vehicle is as follows:

[0113] S631, if the distance between the person and the vehicle is less than the first preset distance, detect whether there is a vehicle key in the range with the first preset distance as the radius;

[0114] S632, if no vehicle key is detected, acquire the behavior data of the pedestrian through the camera module, and judge whether there is abnormal behavior according to the comparison between the behavior data and the background data, wherein the abnormal behavior includes opening the door, breaking the window, and peeping into the vehicle interior;

[0115] S633, if it is judged that there is abnormal behavior, control the camera module to acquire the face image and the full-body image of the pedestrian, and upload all the acquired image data to the authorized device, wherein the authorized device includes the mobile terminal of the guardian and the identity database;

[0116] S634, if the first environmental data set and / or the child body data set do not exist, under the condition of permission of the guardian or the condition of safe personnel after comparison of the identity database, control the vehicle to be unlocked;

[0117] S635, if the first environmental data set and / or the child body data set exist, after acquiring the face image and the full-body image of the pedestrian, control the vehicle to be unlocked.

[0118] The vehicle key can be a key with a signal source, or a mobile device bound with the vehicle login or authorized by the vehicle owner.

[0119] Although the present application is disclosed as above, the present application is not limited thereto. Any person skilled in the art, without departing from the spirit and scope of the present application, can make various changes and modifications, therefore the protection scope of the present application should be limited by the scope defined by the claims.

Claims

1. A child safety protection method, characterized in that, include: The system uses sensors to detect whether there are children and guardians inside the vehicle. If the child is detected inside the vehicle but the guardian is not present, it is determined that the child is in a state of being detained inside the vehicle and the duration of the detention is obtained. If the duration exceeds a first preset threshold, the guardian will be alerted via an alarm system. If the duration exceeds the second preset threshold, then the first environmental data set inside the vehicle, the second environmental data set around the vehicle, and the child's body data set are acquired. If an anomaly is detected in the first environmental data group and / or the child's physical data group, the first protective response is initiated; If an anomaly is detected in the second environmental data group, a second protection response is initiated, wherein the second environmental data group includes pedestrian data around the vehicle; If it is determined that the pedestrian data is abnormal, the camera module is controlled to acquire pedestrian images and upload the pedestrian images to an authorized device; The vehicle is unlocked based on feedback data from the first environmental data set, the child's body data set, and the authorized device. The pedestrian data includes: the distance between the vehicle and surrounding pedestrians, and the pedestrian's behavior data; If it is determined that the pedestrian data is abnormal, the camera module is controlled to acquire pedestrian images and upload the pedestrian images to an authorized device, including: S631. If the distance between the person and the vehicle is less than the first preset distance, then detect whether there is a vehicle key within a radius of the first preset distance. S632. If the vehicle key is not detected, the pedestrian's behavior data is obtained through the camera module, and the behavior data is compared with the background data to determine whether there is any abnormal behavior. The abnormal behavior includes: opening a door, breaking a window, and peeping into the vehicle. S633. If it is determined that the abnormal behavior exists, the camera module is controlled to acquire the pedestrian's facial image and full-body image, and all acquired image data is uploaded to the authorized device, wherein the authorized device includes the guardian's mobile terminal and identity database; The step of controlling the vehicle to unlock based on feedback data from the first environmental data group, the child's body data group, and the authorized device includes: S634. If there are no abnormalities in the first environmental data group and / or the child's body data group, then under the condition of the guardian's permission and the condition that the identity database confirms that the person is a safe person, control the vehicle to unlock. S635. If there is an anomaly in the first environmental data group and / or the child's body data group, then after acquiring the pedestrian's facial image and full-body image, control the vehicle to unlock.

2. The child safety protection method according to claim 1, characterized in that, The first environmental data set includes: cabin temperature, cabin oxygen concentration, and cabin humidity; if an abnormality is detected in the first environmental data set and / or the child's physical data set, a first protective response is initiated, including: If the cabin temperature is not within the preset temperature range, the air conditioning system will be activated to adjust the cabin temperature to within the preset temperature range. If the oxygen concentration inside the cabin is lower than the preset oxygen concentration, the air circulation system will be activated and the windows will be opened. If the humidity inside the cabin is greater than the preset humidity, the windows will be closed. If the oxygen concentration inside the cabin is lower than the preset oxygen concentration and the humidity inside the cabin is higher than the preset humidity, then the windows furthest from the child will be opened.

3. The child safety protection method according to claim 2, characterized in that, The body data set includes body temperature data; If the body temperature data is lower than the first body temperature threshold, the air conditioning system is controlled to adjust the cabin temperature to the higher side of the preset temperature range. If the body temperature data is higher than the second body temperature threshold, the air conditioning system is controlled to adjust the cabin temperature to the lower side of the preset temperature range.

4. The child safety protection method according to claim 1, characterized in that, The step of activating a second protection response if an anomaly is detected in the second environmental data group also includes: Acquire vehicle condition data around the vehicle; The central control system determines whether there is a risk of collision based on the vehicle condition data. If the collision risk is determined to exist, the collision level is predicted based on the vehicle condition data; A graded warning system is implemented based on the predicted collision level.

5. The child safety protection method according to claim 4, characterized in that, The collision levels are categorized as low risk, medium risk, and high risk. If the risk level is determined to be low or medium, the airbag is pre-inflated. If the risk is determined to be high, the airbag will be fully deployed.

6. The child safety protection method according to claim 1, characterized in that, If the duration exceeds a second preset threshold, then after acquiring the first environmental data set inside the vehicle, the second environmental data set around the vehicle, and the child's body data set, the process includes: The remaining battery power of the vehicle is obtained. If it is predicted that the remaining battery power is not sufficient to maintain the first protection response and / or the second protection response for more than a preset duration, then the third protection response is activated.

7. The child safety protection method according to claim 1 or 6, characterized in that, If the duration exceeds a second preset threshold, then after acquiring the first environmental data set inside the vehicle, the second environmental data set around the vehicle, and the child's body data set, the process includes: If the duration exceeds a third preset threshold, a third protection response is initiated.

8. The child safety protection method according to claim 7, characterized in that, The third protection response includes: The control alarm system sends the vehicle's address and distress call information to the relevant departments; The local vehicle loudspeaker is activated to broadcast the distress call to the surrounding area of ​​the vehicle. If a signal is received from an external pedestrian responding to the distress call, the vehicle is unlocked and a camera is triggered to capture and record the pedestrian's full-body image.

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