Child safety protection method

Abstract

The invention provides a child safety protection method. The method comprises the steps that whether a child and a guardian exist in a carrier or not is detected according to a sensor; if it is detected that the child exists in the carrier but no guardian exists in the carrier, it is judged that the interior of the carrier is in an indwelling state; acquiring the duration of the indwelling state; if the duration exceeds a first preset threshold value, a guardian is reminded through an alarm system; if the duration exceeds a second preset threshold value, a first environment data set in the carrier, a second environment data set around the carrier and a body data set of the child are obtained; wherein if it is detected that the first environment data set and / or the child body data set are / is abnormal, a first protection response is started; and if it is detected that the second environment data set is abnormal, starting a second protection response. According to the embodiment of the invention, the technical problem that the safety of the child cannot be effectively guaranteed under the condition that the vehicle is lack of supervision of parents because the child is intentionally or unintentionally left in the vehicle in life is solved.

Description

Technical Field

[0001] This invention relates to the field of vehicle safety technology, and more specifically, to a child safety protection method. Background Technology

[0002] As people's living standards continue to improve, cars have become a common mode of transportation.

[0003] However, the relevant technology has at least one of the following problems: In daily life, parents sometimes intentionally or unintentionally leave their children in the car, and the vehicle cannot effectively guarantee the safety of the children without parental supervision.

[0004] For example, in a closed vehicle, the carbon dioxide concentration inside may rise, causing children to be poisoned and suffocate; or the vehicle may be exposed to high or low temperatures, causing the interior temperature to be too high or too low, affecting the health of children; or a stranger with malicious intent may approach, threatening the children. Summary of the Invention

[0005] The technical problem solved by this invention is that in daily life, parents sometimes intentionally or unintentionally leave their children in the car, and the vehicle cannot effectively guarantee the safety of the children without parental supervision.

[0006] To address the aforementioned problems, this invention provides a child safety protection method, comprising: detecting the presence of a child and guardian inside a vehicle using sensors; if a child is detected inside the vehicle but no guardian is present, determining that the vehicle is in a detaining state and acquiring the duration of the detaining state; if the duration exceeds a first preset threshold, alerting the guardian via an alarm system; if the duration exceeds a second preset threshold, acquiring a first environmental data set inside the vehicle, a second environmental data set around the vehicle, and a child's body data set; if an anomaly is detected in the first environmental data set and / or the child's body data set, initiating a first protection response; if an anomaly is detected in the second environmental data set, initiating a second protection response, wherein the second environmental data set includes pedestrian data around the vehicle; if an anomaly is determined in the pedestrian data, controlling a camera module to acquire pedestrian images and uploading the pedestrian images to an authorized device; and controlling the vehicle to unlock based on feedback data from the first environmental data set, the child's body data set, and the authorized device.

[0007] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: When a child is left alone in a car, different levels of safety protection measures are triggered in stages. First, the guardian is promptly reminded to avoid prolonged stay. Second, the living conditions inside the car are actively adjusted through environmental and physiological data monitoring. Finally, the car door is unlocked based on the behavior recognition of external pedestrians and the linkage with authorized devices to obtain the pedestrian's appearance and identity. This avoids criminals while allowing the child to receive immediate assistance from nearby pedestrians. In certain circumstances, it significantly reduces the waiting time for rescue and avoids economic losses caused by rescue methods such as damaging the vehicle.

[0008] In one embodiment of the present invention, pedestrian data includes: the distance between the vehicle and surrounding pedestrians, and pedestrian behavior data; if it is determined that there is an anomaly in the pedestrian data, 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 vehicle and the pedestrian is less than a first preset distance, the presence of a vehicle key is detected within a radius of the first preset distance; S632, if no vehicle key is detected, the pedestrian behavior data is acquired through the camera module, and the behavior data is compared with the background data to determine whether there is abnormal behavior, wherein the abnormal behavior includes: opening a door, breaking a window, and peeping into the vehicle; S633, if it is determined that there is abnormal behavior, the camera module is controlled to acquire the pedestrian's facial image and full-body image, and all acquired image data is uploaded to an authorized device, wherein the authorized device includes the guardian's mobile terminal and an identity database.

[0009] Compared with existing technologies, the technical effects achieved by this solution are as follows: By detecting the key, the vehicle owner can be distinguished from the surrounding pedestrians. By identifying the behavioral data of the surrounding pedestrians, it can be determined whether the pedestrians have abnormal behavior. Abnormal behavior includes not only rescue actions but also illegal behavior, which is difficult to distinguish clearly. Therefore, by acquiring facial and full-body images of pedestrians with abnormal behavior, and uploading them to the guardian's mobile device and a qualified identity database, such as the identity database of relevant departments, criminals can be prevented from taking advantage of the situation.

[0010] In one embodiment of the present invention, 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 is no abnormality in the first environmental data group and / or the child's body data group, then controlling the vehicle to unlock under the condition of the guardian's permission and the condition that the identity database confirms that the person is a safe person; S635, if there is an abnormality in the first environmental data group and / or the child's body data group, then controlling the vehicle to unlock after acquiring the pedestrian's facial image and full-body image.

[0011] Compared with existing technologies, the technical effects achieved by this solution are as follows: Children's health and safety are the top priority. If a child in the vehicle is in good health and the vehicle environment is normal, unlocking the vehicle requires remote permission from a guardian or confirmation from an identity database that the pedestrian is a safe person. If a child in the vehicle is in an abnormal condition or the vehicle environment is abnormal, threatening the child's life, unlocking will be prioritized to remove the child from danger. However, before unlocking, images of the pedestrian must be obtained to prevent accidents. This solution greatly ensures the safety of children both inside and outside the vehicle.

[0012] In one embodiment of the present invention, 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 a preset temperature range, activating the air conditioning system to adjust the cabin temperature to within the preset temperature range; if the cabin oxygen concentration is lower than a preset oxygen concentration, activating the air circulation system and controlling the windows to open; if the cabin humidity is higher than a preset humidity, controlling the windows to close; wherein, if the cabin oxygen concentration is lower than a preset oxygen concentration and the cabin humidity is higher than a preset humidity, controlling the windows furthest from the child to open.

[0013] Compared with existing technologies, the technical effects achieved by this solution are as follows: This application realizes dynamic linkage control of in-vehicle environmental parameters, quickly restoring a comfortable environment when the temperature is abnormal, ensuring air circulation in the absence of oxygen, and blocking the intrusion of external moisture when the humidity is excessive. Especially in scenarios with both abnormal oxygen and humidity, the space-isolated window control strategy maintains the necessary oxygen supply while minimizing the impact of humidity on children, thus solving the technical shortcomings of traditional solutions that cannot simultaneously address multiple environmental anomalies.

[0014] In one embodiment of the present invention, 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 the higher side of the preset temperature range; 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 the lower side of the preset temperature range.

[0015] Compared with existing technologies, the technical effects achieved by this solution are as follows: This application can dynamically select the optimal temperature adjustment direction based on the child's real-time body temperature status, prioritizing the most effective adjustment strategy for the current abnormal body temperature while maintaining the ambient temperature within a safe range. When the body temperature is too low, it accelerates warming up by raising the upper limit of the range; when the body temperature is too high, it enhances heat dissipation by lowering the lower limit of the range. This avoids the adjustment lag caused by fixed temperature settings and prevents secondary harm caused by sudden temperature changes.

[0016] In one embodiment of the present invention, if an anomaly is detected in the second environmental data group, a second protection response is initiated, which further includes: acquiring vehicle condition data around the vehicle, controlling the central control system to determine whether there is a collision risk based on the vehicle condition data; if a collision risk is determined to exist, predicting the collision level based on the vehicle condition data; and providing a graded warning based on the predicted collision level.

[0017] Compared with existing technologies, the technical effects achieved by this solution are as follows: This application effectively solves the problem of not being able to dynamically adjust protective measures when there is a collision risk around the vehicle. By analyzing vehicle condition data in real time to predict the collision level, corresponding protective mechanisms can be activated for different levels of danger, avoiding excessive consumption of safety devices in low-risk scenarios and ensuring timely and effective protection in high-risk scenarios. The introduction of a graded warning mechanism allows the safety system to rationally allocate resources according to the actual threat level, optimizing the operating efficiency of in-vehicle equipment while ensuring children's safety.

[0018] In one embodiment of the present invention, 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 pre-inflated; if it is determined to be high risk, the airbag is fully deployed.

[0019] Compared with existing technologies, the technical effects achieved by this solution are as follows: This application enables differentiated protection for different collision risk levels when the vehicle is unattended. In low-risk scenarios, the safety system remains on standby to avoid wasting airbag resources due to misoperation; in medium-risk scenarios, the response time of safety devices is shortened to prepare for potential collisions; and in emergency high-risk scenarios, comprehensive protection is immediately activated to minimize the harm to children caused by collision impacts.

[0020] In one embodiment of the present invention, if the duration exceeds a second preset threshold, 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: acquiring the remaining battery power of the vehicle; if it is predicted that the remaining battery power does not support maintaining the first protection response and / or the second protection response for more than a preset duration, then the third protection response is activated.

[0021] Compared with existing technologies, the technical effects achieved by this solution are as follows: This application solves the problem that vehicles cannot maintain safety protection responses due to insufficient remaining power, such as uncontrolled interior temperature caused by a sudden power outage of the air conditioning system in high-temperature environments, or the inability to issue timely warnings after the collision warning system malfunctions. Through the synergistic effect of remaining power prediction and third-party protection response, it ensures that basic safety protection can still be maintained through low-power means in critical states of insufficient energy, preventing children from being exposed to dangerous environments due to the failure of the protection system.

[0022] In one embodiment of the present invention, if the duration exceeds a second preset threshold, 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, then activating a third protective response.

[0023] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: This application can automatically initiate external assistance when a child is left unattended for an extended period of time and prior protective measures fail, effectively shortening the rescue response time.

[0024] In one embodiment of the present invention, the third protection response includes: controlling the alarm system to send the vehicle's address and distress information to relevant departments; activating the local vehicle loudspeaker to broadcast the distress information to the surrounding area of ​​the vehicle via the vehicle loudspeaker; wherein, if a signal is received from an external pedestrian responding to the distress information, the vehicle is unlocked and a camera device is triggered to acquire and record a full-body image of the pedestrian.

[0025] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: This application solves the problem that children cannot receive timely external rescue when they are left unattended for a long time, realizes accurate push and rapid response of rescue requests, avoids the risk of secondary injury caused by the closed environment, and ensures the traceability of the rescue process through video recording.

[0026] By adopting the technical solution of the present invention, the following technical effects can be achieved: (1) This invention can automatically identify the risk status of a child being left in a vehicle through multi-dimensional environmental and vital sign monitoring, and detect abnormalities in the vehicle environment, the surrounding area outside the vehicle, and the child's physical health data in real time; (2) The system has a multi-level early warning and protection mechanism, and can automatically activate the air conditioning, windows, alarms and other vehicle systems according to different risk types and levels, effectively protecting the safety and health of children; (3) It supports automatically sending help requests to relevant departments and guardians when there is a high risk or insufficient power, and intelligently linking sound and light alarms and driving safety systems to achieve comprehensive and graded child safety protection. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 A flowchart illustrating a child safety protection method provided by the present invention; Figure 2 This is a schematic diagram of the cabin temperature regulation process; Figure 3 A schematic diagram of the process for detecting oxygen content and adjusting humidity inside the cabin; Figure 4 This is a schematic diagram of the abnormal behavior detection process for pedestrians around a vehicle. Detailed Implementation

[0028] The following will refer to the appendix to this application. Figures 1 to 4 The technical solutions in this application are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The components of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following drawings indicate similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] While automobiles are widely used as a primary mode of transportation, guardians often leave children alone inside vehicles when temporarily leaving them. Traditional vehicle safety systems typically only have door locking or simple alarm functions, failing to effectively identify whether a child is left inside, and lacking proactive monitoring mechanisms for abnormal in-vehicle environments and external threats. For example, in hot summer conditions, the temperature inside a closed car can rise to dangerous levels in a short time, and existing systems cannot identify a child left behind or proactively intervene in abnormal temperatures, leaving children at risk of dehydration or heatstroke.

[0030] To address the aforementioned issues, the inventors identified three core shortcomings in existing safety systems: the inability to accurately identify the coexistence of children and guardians, the lack of a tiered assessment mechanism for the duration of stay, and the absence of multi-dimensional response strategies to environmental anomalies. Analysis of the patterns of child safety incidents revealed different risk levels between brief absences and prolonged stays by guardians, necessitating the establishment of a phased protection mechanism. Based on this, the inventors proposed dividing the duration of stay into two key threshold phases. The first phase triggers a guardian's reminder, while the second phase introduces environmental data monitoring and proactive protection, forming a progressive safety protection system.

[0031] Therefore, the present invention provides a child safety protection method, comprising: detecting whether a child and guardian are present in a vehicle based on sensors; if a child is detected in the vehicle but no guardian is present, determining that the vehicle is in a detaining state and obtaining the duration of the detaining state; if the duration exceeds a first preset threshold, alerting the guardian through an alarm system; if the duration exceeds a second preset threshold, obtaining a first environmental data set inside the vehicle, a second environmental data set around the vehicle, and a child's body data set; if an anomaly is detected in the first environmental data set and / or the child's body data set, initiating a first protection response; if an anomaly is detected in the second environmental data set, initiating a second protection response, wherein the second environmental data set includes pedestrian data around the vehicle; if an anomaly is determined in the pedestrian data, controlling a camera module to acquire pedestrian images and uploading the pedestrian images to an authorized device; and controlling the vehicle to unlock based on feedback data from the first environmental data set, the child's body data set, and the authorized device.

[0032] Optionally, the above-mentioned child safety protection methods can be applied to applicable scenarios such as child safety seats and vehicles.

[0033] Specifically, sensor detection uses infrared thermal imaging sensors or pressure sensors to identify the presence of human bodies inside the vehicle. This can be achieved by using a seat pressure sensor matrix and a roof-mounted infrared dual-mode detection system to distinguish the body shape characteristics of children and adults.

[0034] Furthermore, the "detention status judgment" refers to the logical judgment triggered when a target matching the physical characteristics of a child is detected alone. This is specifically achieved by analyzing sensor data through image recognition algorithms, and is used to accurately identify scenarios where a child is alone.

[0035] Furthermore, the duration acquisition refers to the time parameter that is continuously counted from the start of the judgment of the abandoned state. Specifically, it is achieved by linking the on-board timer with the vehicle's off state, and is used to quantify the risk level of leaving a child alone.

[0036] Furthermore, the first environmental data set includes key indicators such as temperature and oxygen concentration in the enclosed space, which are collected through in-vehicle environmental sensors to assess the suitability of the microenvironment in which the child is located.

[0037] Furthermore, the second environmental data group involves the distance and behavioral characteristics of pedestrians around the vehicle. Specifically, it is achieved through the fusion perception of millimeter-wave radar and cameras, and by comparing it with features in historical databases, in order to identify potential external threats.

[0038] Furthermore, the body data set includes physiological indicators such as the child's body surface temperature, specifically achieved through wearable devices or non-contact infrared thermometry, used to monitor the child's real-time physiological state.

[0039] Specifically, when the sensors detect that only a child is present inside the vehicle, the system automatically enters the isolation monitoring mode. The timing module continuously records the time the child is alone, and when the time reaches the first preset threshold, an alarm message is sent to the guardian's mobile terminal via the vehicle communication module. If the guardian does not return in time and the time exceeds the second preset threshold, the system initiates multi-dimensional data collection: acquiring in-vehicle environmental data through temperature and humidity sensors, monitoring the distance to surrounding pedestrians through vehicle radar, and acquiring the child's body temperature data through an infrared thermometer. When the in-vehicle temperature is detected to exceed the safe range or the child's body temperature is detected to be abnormal, the air conditioning temperature control and air circulation are automatically activated; when a pedestrian is detected to be abnormally approaching, suspicious behavior is recorded and the image data is uploaded to an authorized device for identification.

[0040] In one embodiment of the present invention, pedestrian data includes: the distance between the vehicle and surrounding pedestrians, and pedestrian behavior data; if it is determined that there is an anomaly in the pedestrian data, 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 vehicle and the pedestrian is less than a first preset distance, the presence of a vehicle key is detected within a radius of the first preset distance; S632, if no vehicle key is detected, the pedestrian behavior data is acquired through the camera module, and the behavior data is compared with the background data to determine whether there is abnormal behavior, wherein the abnormal behavior includes: opening a door, breaking a window, and peeping into the vehicle; S633, if it is determined that there is abnormal behavior, the camera module is controlled to acquire the pedestrian's facial image and full-body image, and all acquired image data is uploaded to an authorized device, wherein the authorized device includes the guardian's mobile terminal and an identity database.

[0041] Among these, "vehicle-pedestrian distance less than the first preset distance" means that the real-time distance between the vehicle and surrounding pedestrians is lower than a safety warning value. This can be achieved using millimeter-wave radar ranging technology to initially identify potential threats entering the danger zone. "Detecting the presence of the vehicle key" verifies whether the holder of vehicle control authority is present. This can be achieved using Bluetooth signal strength detection or RFID radio frequency identification technology to distinguish between normal operation by a guardian and unauthorized intrusion.

[0042] Furthermore, the camera module acquires behavioral data by capturing pedestrian movement features through image acquisition devices. Specifically, this can be achieved by using a vehicle-mounted surround-view camera in conjunction with a skeletal key point recognition algorithm to accurately analyze human posture and movements.

[0043] Specifically, when the millimeter-wave radar detects a pedestrian entering a warning zone centered on the vehicle with a radius equal to a first preset distance (e.g., 1.5 meters), the system immediately initiates a key detection procedure. If no valid key signal is detected within the set range, the onboard camera is activated to capture a video stream of pedestrian behavior at a rate of 30 frames per second. The video data is analyzed in real time using a convolutional neural network, focusing on identifying features that break windows, such as hands touching the window or tools striking the glass, as well as features that open doors, such as pulling door handles or prying open doors. When an action matching a preset dangerous behavior pattern is detected, two independent processes are triggered simultaneously: on one hand, the panoramic camera is controlled to capture 1080P resolution images and store them in an encrypted storage unit; on the other hand, the onboard buzzer is driven to emit an intermittent alarm sound wave at an intensity of 85 decibels.

[0044] It should be noted that abnormal pedestrian data indicates that pedestrians are attempting to enter the vehicle by opening doors, breaking windows, or peering into the vehicle at close range. However, these abnormal behaviors do not necessarily indicate that criminals intend to commit illegal acts. They could also be due to nearby pedestrians discovering that a child is left inside the vehicle. Since the actions of both are similar, it is difficult to clearly identify them. Therefore, facial and full-body images of pedestrians are obtained through a camera module and sent to an authorized device. This authorized device is the mobile device of the logged-in guardian, which can be logged in by multiple guardians. The authorized device also includes an identity database. After comparison with the identity database, the results are sent to the mobile devices of all guardians. The vehicle is unlocked when the guardian clicks "permission" on their mobile device.

[0045] The identity database comparison results include secure personnel, suspicious personnel, unauthorized personnel, and unmatched personnel. Secure personnel are those with no illegal records and clear image features; suspicious personnel are those with unclear image features or suspicious records; unauthorized personnel are those with records of illegal behavior; and unmatched personnel are those who are not from this country or are not identified by any matching image features. Guardians can verify the identity through image verification and can change suspicious or unmatched personnel to secure personnel or unauthorized personnel. If determined to be an unauthorized person, the vehicle's built-in alarm will be activated immediately, and the windows will be closed and the doors locked.

[0046] In one embodiment of the present invention, 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 is no abnormality in the first environmental data group and / or the child's body data group, then controlling the vehicle to unlock under the condition of the guardian's permission or the condition that the identity database confirms that the person is a safe person; S635, if there is an abnormality in the first environmental data group and / or the child's body data group, then controlling the vehicle to unlock after acquiring the pedestrian's facial image and full-body image.

[0047] Specifically, if there are one or more of the following conditions inside the vehicle: low oxygen content, excessively high or low temperature, excessively high humidity, excessively high or overheated body temperature of the child, or loud crying, then the child's health and safety are deemed to be threatened, and the child needs to be removed from the enclosed environment of the vehicle as soon as possible. Therefore, if there are pedestrians exhibiting abnormal behavior, the vehicle should be unlocked first, provided that their facial and full-body images are obtained, in order to free the child.

[0048] In one embodiment of the present invention, 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 a preset temperature range, activating the air conditioning system to adjust the cabin temperature to within the preset temperature range; if the cabin oxygen concentration is lower than a preset oxygen concentration, activating the air circulation system and controlling the windows to open; if the cabin humidity is higher than a preset humidity, controlling the windows to close; wherein, if the cabin oxygen concentration is lower than a preset oxygen concentration and the cabin humidity is higher than a preset humidity, controlling the windows furthest from the child to open.

[0049] The preset temperature range refers to the temperature range set according to the child's comfort level. Specifically, it can be achieved by using a temperature sensor to monitor the temperature in real time and compare it with the preset threshold, so as to ensure that the temperature inside the cabin is within a safe and comfortable range.

[0050] Furthermore, the air circulation system refers to a device used to regulate the air quality inside the cabin. Specifically, it can be implemented by linking the vehicle-mounted ventilation equipment with the external fresh air system to supplement fresh air when the oxygen concentration is insufficient.

[0051] Furthermore, window control refers to the actuator that adjusts the opening and closing of the windows according to changes in environmental parameters. This can be achieved using a motor-driven window lift module, balancing the conflict between ventilation needs and humidity control. The strategy of opening windows further away from children prioritizes opening windows farther from children's seats. This can be achieved by using a position sensor to identify the child's seat and control the corresponding window actuator, ensuring adequate ventilation while minimizing the impact of external humidity on children.

[0052] Optionally, when it is raining outside, the degree to which the window is opened can be controlled to control the amount of rainwater entering the vehicle, while also enabling air exchange between the inside and outside of the vehicle.

[0053] Specifically, when an abnormal temperature is detected, the air conditioning system is activated to adjust the cabin temperature to a safe range; for example, cooling mode is activated when the temperature exceeds 35°C, and heating mode is activated when the temperature is below 10°C. In scenarios with insufficient oxygen concentration, the air circulation system works in conjunction with window opening; for example, external circulation mode is activated and the sunroof is opened when the oxygen concentration is below 18%. In cases of abnormal humidity, window closing commands are executed to prevent the entry of humid outside air; for example, all windows are automatically closed when the humidity exceeds 70%. In special circumstances where both oxygen and humidity are abnormal, the system prioritizes opening the window furthest from the child seat.

[0054] When a child is detected being left alone for more than a second preset threshold, the system simultaneously initiates in-vehicle environmental monitoring, external environmental scanning, and collection of the child's physiological status. The cabin temperature is monitored in real-time via a distributed temperature sensor network, triggering temperature control adjustments when the temperature exceeds a preset range. Oxygen concentration is monitored by multiple gas sensors, combined with humidity sensor data to determine whether ventilation or dehumidification is needed. The distance between pedestrians and vehicles outside the vehicle is dynamically measured using a surround radar array, combined with cameras to capture pedestrian posture characteristics and identify abnormal approach behavior. Vehicle condition data is integrated from the vehicle's ADAS system and roadside units to assess whether the movement trajectories of surrounding vehicles pose a collision threat. Body temperature data is periodically collected by non-contact infrared sensors and cross-validated with cabin temperature data to avoid misjudging the child's heat stress state.

[0055] In one embodiment of the present invention, 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 the higher side of the preset temperature range; 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 the lower side of the preset temperature range.

[0056] The body temperature data refers to the child's surface temperature data collected by infrared sensors or wearable devices, specifically using a non-contact infrared temperature measurement module for real-time monitoring of changes in the child's body temperature. The first body temperature threshold is the lowest critical value that triggers a temperature increase, for example, 35.5 degrees Celsius. When the body temperature is below this value, the ambient temperature needs to be raised. The second body temperature threshold is the highest critical value that triggers a temperature increase, for example, 37.5 degrees Celsius. When the body temperature is above this value, the ambient temperature needs to be lowered. The preset temperature range refers to a temperature range set according to the child's comfort level, such as 20-25 degrees Celsius. The higher end can be a temperature value near the upper limit of the range, and the lower end can be a temperature value near the lower limit of the range.

[0057] Furthermore, the air conditioning system refers to an on-board temperature control device with bidirectional temperature regulation function, which can be achieved by using a variable frequency compressor and an electric heater working together to precisely regulate the temperature within a preset range.

[0058] Specifically, when the infrared temperature measurement module detects that a child's body temperature remains below the first temperature threshold, the air conditioning system automatically sets the target temperature to the upper limit of a preset range, such as 25 degrees Celsius, and raises the cabin temperature using an electric heater. When the detected body temperature remains above the second temperature threshold, the air conditioning system adjusts the target temperature to the lower limit of the preset range, such as 20 degrees Celsius, and starts the cooling cycle via the compressor. The temperature adjustment process uses a gradient change mode, with the hourly temperature change controlled within 2-3 degrees Celsius to avoid discomfort for the child due to sudden temperature changes. During the adjustment process, the temperature sensor provides real-time feedback of the cabin temperature data, forming a closed-loop control until the body temperature data returns to the normal range.

[0059] The cabin temperature refers to the temperature inside the vehicle, which can be achieved by placing temperature sensors on the top of the cabin or under the seats to monitor temperature changes in the enclosed space where children are located.

[0060] Furthermore, cabin oxygen concentration refers to the percentage of oxygen content in a unit volume of air. Specifically, it can be achieved by installing an electrochemical oxygen sensor near the air conditioning vent to determine whether the air inside the vehicle meets breathing requirements.

[0061] Furthermore, cabin humidity refers to the proportion of water vapor in the air, which can be achieved by integrating a capacitive humidity sensor inside the car door to assess the comfort level of the in-vehicle environment.

[0062] Furthermore, millimeter-wave radar or cameras combined with image recognition algorithms can be used to identify the distance between pedestrians and vehicles near the vehicle, in order to identify potential proximity threats.

[0063] Furthermore, pedestrian behavior data refers to information on human body movement characteristics. Specifically, this can be achieved by using vehicle-mounted cameras to capture body movements and analyzing them through machine learning models to determine whether there is an intention to break a window or open a door.

[0064] Furthermore, vehicle condition data refers to the vehicle's driving status and surrounding traffic environment information, which can be achieved by using onboard radar, ultrasonic sensors, and V2X communication modules to predict collision risks.

[0065] Furthermore, body temperature data refers to the temperature value of a child's body surface or internal organs. Specifically, it can be achieved by integrating an infrared temperature measurement module into the seat belt buckle or wearable device to monitor abnormal physiological states.

[0066] In one embodiment of the present invention, if an anomaly is detected in the second environmental data group, a second protection response is initiated, which further includes: acquiring vehicle condition data around the vehicle, controlling the central control system to determine whether there is a collision risk based on the vehicle condition data; if a collision risk is determined to exist, predicting the collision level based on the vehicle condition data; and providing a graded warning based on the predicted collision level.

[0067] Among these, vehicle status data refers to vehicle operating status information, specifically obtained by collecting real-time vehicle speed, acceleration, braking status, and distance data to surrounding vehicles from onboard sensors, used to construct a dynamic vehicle operation model. Collision risk refers to the probability of a vehicle contacting an external object, specifically obtained by using radar ranging devices and visual recognition systems to collaboratively detect the distance and relative speed of obstacles ahead, used to establish a collision probability calculation model. Collision level refers to the degree of damage a potential collision event will cause to the vehicle, specifically obtained by using machine learning algorithms to match and analyze historical collision data with current driving parameters, used to classify safety thresholds for different levels of danger. Graded warning refers to taking differentiated protective measures for different risk levels, specifically obtained by using multi-level triggering mechanisms to control the operating modes of safety devices, used to achieve optimal allocation of protective resources.

[0068] Specifically, when onboard sensors detect abnormal vehicle conditions around the vehicle, the central control system inputs the real-time vehicle speed and distance to the obstacle into the collision probability calculation model. By calculating the relationship between the relative speed of the two vehicles and the braking distance, it determines whether there is a risk of a rear-end collision. If a collision risk is identified, the system further analyzes the obstacle's mass, collision angle, and vehicle structural strength parameters, and uses a pre-trained risk assessment model to output three collision levels: low, medium, and high. For a low-risk level, only a warning sound is activated to alert surrounding vehicles; for a medium-risk level, airbag pre-inflation preparation is triggered; and for a high-risk level, all airbags are deployed and the braking system is activated for emergency braking.

[0069] In one embodiment of the present invention, 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 pre-inflated; if it is determined to be high risk, the airbag is fully deployed.

[0070] The collision rating refers to the potential collision hazard level calculated based on data collected by vehicle sensors, including acceleration, obstacle distance, and vehicle speed. This can be achieved using a multi-dimensional data fusion algorithm combined with preset threshold ranges to quantitatively assess the urgency of an accident. Pre-inflation refers to the airbag control module sending a partial inflation command to the airbag inflator. This can be implemented using a staged inflation control circuit, keeping the airbag in a ready-to-deploy state but not fully deployed. Full deployment refers to the airbag control module sending a maximum power inflation command to the inflator. This can be achieved using a high-pressure gas instantaneous release mechanism, ensuring the airbag reaches its maximum protective volume before a collision.

[0071] Specifically, when the vehicle is unattended, the collision risk level is determined by real-time monitoring of surrounding vehicle data. In low- or medium-risk scenarios, such as when the distance between the vehicle and an obstacle is critical but the relative speed is low, the airbags pre-inflate to reach a pre-positioned pressure. At this point, the airbags are in a semi-deployed state, which shortens the response time for full inflation and avoids resource waste due to misjudgment. When a high-risk scenario is detected, such as when the vehicle approaches an obstacle at high speed with insufficient braking distance, the airbags immediately trigger full deployment, ensuring an effective buffer barrier is formed at the moment of impact. This tiered response mechanism achieves optimal allocation of safety resources by dynamically matching protection strength with risk level, controlling the full deployment of the airbags.

[0072] In one embodiment of the present invention, if the duration exceeds a second preset threshold, 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: acquiring the remaining battery power of the vehicle; if it is predicted that the remaining battery power does not support maintaining the first protection response and / or the second protection response for more than a preset duration, then the third protection response is activated.

[0073] The remaining battery capacity refers to the total electrical energy currently stored in the vehicle's battery. This can be calculated in real-time by collecting voltage and current data from the battery management system, and is used to assess the energy base required to maintain the protection system's operation. The preset duration refers to the minimum guaranteed time required to maintain the protection response, such as 30 minutes or 1 hour, specifically set based on the typical power consumption of devices like air conditioners and alarms, and is used to establish a baseline for power demand. The third protection response refers to emergency measures triggered when the battery is insufficient, such as sending a distress signal to an external platform or unlocking the doors. This is executed through the vehicle communication module or central control system, and is used to switch to a low-power safety mode when the energy is critically low.

[0074] Specifically, upon detecting that the vehicle is in a lodged state and exceeds a second preset threshold, the remaining battery power is obtained through the battery management system. Based on the power consumption parameters of protective equipment such as air conditioning, air circulation, and alarms, the system predicts whether the remaining battery power can support the vehicle for a preset duration. If the prediction result does not meet the requirements, a third protective response is immediately triggered. For example, a low battery alarm is sent to the guardian's mobile phone via the vehicle communication module, and the central control system is controlled to unlock the doors for external rescue. During this process, the real-time monitoring and prediction mechanism of the remaining battery power can prevent the protective system from failing due to sudden battery depletion, while the tiered activation strategy of the third protective response ensures that critical safety actions are prioritized when energy is insufficient.

[0075] In one embodiment of the present invention, if the duration exceeds a second preset threshold, 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, then activating a third protective response.

[0076] The third preset threshold refers to a pre-defined time threshold used to determine whether the time a child has been left inside a vehicle long enough to trigger an external assistance mechanism. This can be achieved by linking the vehicle's timing module with a threshold database; for example, the timing module could trigger a response when it detects that the detention time exceeds 36 hours. The third protective response refers to emergency intervention measures executed in coordination with local equipment via external communication. This can be achieved by linking the vehicle's communication module with an alarm system; for example, sending an assistance request to relevant departmental systems and activating the vehicle's loudspeaker to broadcast an announcement.

[0077] In some specific implementations, the third preset threshold can be dynamically adjusted according to seasonal factors, for example, set to 3 hours in high-temperature summer environments and 6 hours in low-temperature winter environments. The communication method for the third protection response can preferentially select cellular networks, and automatically switch to satellite communication mode when the signal strength is insufficient. The content broadcast by the vehicle-mounted speaker can include key information such as the child's age and health status, such as "There is a 3-year-old child in the vehicle with an abnormal body temperature, requesting emergency assistance."

[0078] Specifically, when a child is unsupervised inside the vehicle, the system continuously monitors the duration of stay. If this duration exceeds a second preset threshold, the system has collected environmental and physical data and implemented initial protective measures. When the duration further accumulates to a third preset threshold, it indicates that conventional protective measures have failed to eliminate the risk. At this point, the system automatically triggers a third protective response, sending the vehicle's location information and a distress signal to the relevant department's platform via the vehicle's communication module, while simultaneously activating the vehicle's loudspeaker to continuously play a distress message. If a pedestrian responds to the distress call, the system will unlock the vehicle and activate the camera to record the contact person's image, forming a complete emergency response process.

[0079] In one embodiment of the present invention, the third protection response includes: controlling the alarm system to send the vehicle's address and distress information to relevant departments; activating the local vehicle loudspeaker to broadcast the distress information to the surrounding area of ​​the vehicle via the vehicle loudspeaker; wherein, if a signal is received from an external pedestrian responding to the distress information, the vehicle is unlocked and a camera device is triggered to acquire and record a full-body image of the pedestrian.

[0080] The alarm system refers to a vehicle-mounted device that can automatically send location and distress information to external rescue organizations. This can be achieved by linking a vehicle-mounted communication module with a cloud server to ensure timely intervention by professional rescue forces. The vehicle-mounted horn is an acoustic alarm device installed inside or outside the vehicle. This can be implemented using a directional loudspeaker or a surround sound system to amplify the distress call area and attract the attention of nearby pedestrians.

[0081] Furthermore, the distress call information refers to a standardized data packet containing the vehicle's location, the child's condition, and the emergency situation. This packet can be generated using pre-set templates combined with real-time sensor data to improve the accuracy of information transmission. Unlocking the vehicle refers to releasing the electronic locks on the doors. This is achieved by the vehicle's control unit receiving external signals and driving the lock motors, allowing external rescue personnel to enter the vehicle. The camera device refers to an image acquisition device with panoramic shooting capabilities, which can be implemented using multi-angle vehicle-mounted cameras to record the rescue process and preserve visual evidence.

[0082] Specifically, when a child is left inside the vehicle for an extended period and there is an emergency risk, the alarm system first sends the vehicle's real-time location information and standardized distress signal to the relevant department's command center, triggering a professional rescue process. Simultaneously, the vehicle's loudspeaker continuously broadcasts a voice distress signal containing a description of the child's condition, covering the area around the vehicle. If a pedestrian receives the distress signal and actively sends a response signal via a mobile terminal or the vehicle's external interface, the vehicle's control unit immediately unlocks the doors, allowing the pedestrian to carry out the rescue. During this process, cameras installed inside and outside the vehicle automatically activate, recording full-body images of pedestrians approaching the vehicle and encrypting and storing the data in the vehicle's storage module.

[0083] In summary, such as Figure 1 As shown, the process of a child safety protection method is as follows: S1. Detect the presence of children and guardians inside the vehicle using sensors; S2. If only a child is detected inside the vehicle, it is determined that the vehicle is in a state of confinement. S3. Obtain the duration of the detention status; S4. If the duration exceeds the first preset threshold, the guardian will be alerted through the alarm system. S5. If the duration exceeds the second preset threshold, acquire data on the vehicle's internal and external environment and the child's physical data. S6. Execute the first and second protection responses according to the abnormal data of the vehicle's internal and external environment and the child's physical data. S7. If the remaining power is detected to be insufficient to support the first protection response and / or the second protection response, execute the third protection response; S8. If the duration exceeds the third preset threshold, then execute the third protection response.

[0084] like Figures 2 to 4 As shown, step S6 above includes: The cabin temperature control procedure is as follows: S611, Obtain the cabin temperature; S612. Determine whether the cabin temperature is within the preset temperature range; S613. If the determination is no, control the air conditioning system to adjust the cabin temperature to within the preset temperature range; S614. If the determination is yes, then obtain the child's body temperature data; S615. If the body temperature data is lower than the first body temperature threshold, control the air conditioning system to adjust the cabin temperature to the higher side of the preset temperature range. S616. If the body temperature data is higher than the second body temperature threshold, control the air conditioning system to adjust the cabin temperature to the lower side of the preset temperature range.

[0085] The procedures for detecting oxygen levels and adjusting humidity inside the cabin are as follows: S621. Obtain the oxygen concentration and humidity inside the cabin; S622. 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. S623. If the oxygen concentration inside the cabin is higher than the preset oxygen concentration, but the humidity inside the cabin is higher than the preset humidity, then control the windows to close. S624. 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 control the opening of the windows that are away from the children.

[0086] The abnormal pedestrian behavior detection process around the vehicle is as follows: 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. Abnormal behavior includes: opening the door, breaking the window, and peeping into the vehicle. S633. If abnormal behavior is detected, 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, which includes the guardian's mobile terminal and identity database. S634. If there are no abnormalities in the first environmental data group and / or the child's physical data group, the vehicle shall be unlocked with the guardian's permission or if the identity database confirms that the person is a safe person. S635. If there is an anomaly in the first environmental data group and / or the child's body data group, after acquiring the pedestrian's facial image and full-body image, control the vehicle to unlock.

[0087] The vehicle key can be a key with a signal transmission source, or a mobile device that is bound to the vehicle login or authorized by the vehicle owner.

[0088] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in 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 controlled to unlock based on feedback data from the first environmental data set, the child's body data set, and the authorized device.

2. The child safety protection method according to claim 1, characterized in that, 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 the abnormal behavior is determined to exist, 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.

3. The child safety protection method according to claim 2, characterized in that, 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.

4. 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.

5. The child safety protection method according to claim 4, 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.

6. 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.

7. The child safety protection method according to claim 6, 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.

8. 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.

9. The child safety protection method according to claim 1 or 8, 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.

10. The child safety protection method according to claim 9, 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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