Electromagnetic radiation control method and device, electronic device and storage medium

Abstract

The present disclosure relates to an electromagnetic radiation control method and device, an electronic device and a storage medium, and the method comprises: acquiring sensing data collected by at least one sensor in a vehicle environment; determining a pose of at least one occupant in the vehicle environment based on the acquired sensing data; and controlling a transmission parameter of at least one electromagnetic signal transmission module in the vehicle environment according to the pose of the at least one occupant, so that the electromagnetic radiation intensity at each occupant in the vehicle environment is not higher than a safety threshold.

Description

Technical Field

[0001] This disclosure relates to the field of electromagnetic control technology, specifically to an electromagnetic radiation control method and device, electronic equipment, and storage medium. Background Technology

[0002] In recent years, the automation level of intelligent vehicles has gradually increased, and intelligent driving technology has matured. These technological advancements have led to increasingly complex in-vehicle communication systems, incorporating various communication modules such as V2X (Vehicle-to-Everything), cellular networks (such as 5G networks), and wireless networks (WiFi). The electromagnetic signals emitted by these communication modules can generate high levels of electromagnetic radiation within the vehicle environment, potentially impacting the health of occupants.

[0003] However, in related technologies, intelligent vehicles do not effectively control electromagnetic radiation in the in-vehicle environment, and cannot avoid the impact of electromagnetic radiation on the health of passengers. Summary of the Invention

[0004] To overcome the problems existing in the related technologies, the present disclosure provides an electromagnetic radiation control method and apparatus, an electronic device and a storage medium to solve the defects in the related technologies.

[0005] According to a first aspect of the present disclosure, an electromagnetic radiation control method is provided, the method comprising:

[0006] Acquire sensor data collected by at least one sensor in the vehicle environment;

[0007] Based on the acquired sensor data, the pose of at least one occupant in the vehicle environment is determined.

[0008] Based on the position of the at least one occupant, the transmission parameters of at least one electromagnetic signal transmitting module in the vehicle environment are controlled so that the electromagnetic radiation intensity at each occupant in the vehicle environment does not exceed a safety threshold.

[0009] In one possible embodiment of this disclosure, the at least one sensor includes a plurality of sensor groups with different priorities, and the sensor group includes one or more sensors;

[0010] The acquisition of sensing data collected by at least one sensor within the vehicle environment includes:

[0011] The sensor data collected by the sensors in multiple sensor groups are acquired sequentially in order of priority from low to high until the acquired sensor data meets the pose determination requirements.

[0012] In one possible embodiment of this disclosure, the step of sequentially acquiring sensing data collected by sensors within multiple sensor groups in ascending order of priority includes:

[0013] After acquiring the sensor data collected by the sensors in any sensor group, if the acquired sensor data indicates the presence of occupants in the vehicle environment, and the acquired sensor data does not meet the pose determination requirements, then acquire the sensor data collected by the sensors in a sensor group with a higher priority than any of the sensor groups.

[0014] In one possible embodiment of this disclosure, if the acquired sensing data indicates the presence of an occupant in the vehicle environment, and the acquired sensing data does not meet the pose determination requirements, then acquiring sensing data collected by a sensor in a sensor group with a higher priority than any of the sensor groups includes:

[0015] If the acquired sensor data indicates the presence of an occupant in the vehicle environment, and the acquired sensor data does not meet the pose determination requirements, then sensor data collected by the sensor corresponding to the occupant's position in a sensor group with a higher priority than any of the sensor groups is acquired.

[0016] In one possible embodiment of this disclosure, after determining the pose of at least one occupant within the vehicle environment, the method further includes:

[0017] Acquire sensor data collected by sensors in at least one sensor group, and track the pose of each occupant based on the acquired sensor data;

[0018] Based on the tracking results of each occupant's pose, the transmission parameters of at least one electromagnetic signal transmitting module in the vehicle environment are controlled in real time to ensure that the electromagnetic radiation intensity at each occupant's location in the vehicle environment does not exceed the safety threshold.

[0019] In one possible embodiment of this disclosure, the at least one sensor includes at least one of a pressure sensor, an ultrasonic sensor, an AON sensor, a UWB sensor, an optical camera, an infrared camera, and radar.

[0020] In one possible embodiment of this disclosure, the pose includes the position of each part of the occupant;

[0021] The step of controlling the transmission parameters of at least one electromagnetic signal transmitting module based on the position of at least one occupant, so that the electromagnetic radiation intensity at each occupant location within the vehicle environment does not exceed a safety threshold, includes:

[0022] Based on the position of the at least one occupant, the transmission parameters of at least one electromagnetic signal transmitting module are controlled so that the electromagnetic radiation intensity at each part of each occupant in the vehicle environment does not exceed the safety threshold corresponding to that part.

[0023] In one possible embodiment of this disclosure, controlling the transmission parameters of at least one electromagnetic signal transmitting module based on the pose of the at least one occupant, so that the electromagnetic radiation intensity at each occupant location within the vehicle environment does not exceed a safety threshold, includes:

[0024] Based on the position of the at least one occupant, the transmission parameters of at least one electromagnetic signal transmitting module are controlled so that the electromagnetic radiation intensity at each occupant in the vehicle environment does not exceed a safety threshold, and the signal quality of each electromagnetic signal transmitting module meets preset requirements.

[0025] In one possible embodiment of this disclosure, the transmission parameters include at least one of power, beam direction, duty cycle, and transmission bandwidth.

[0026] According to a second aspect of the present disclosure, an electromagnetic radiation control device is provided, the device comprising:

[0027] The acquisition module is used to acquire sensor data collected by at least one sensor in the vehicle environment;

[0028] The determination module is used to determine the pose of at least one occupant in the vehicle environment based on the acquired sensor data.

[0029] The control module is used to control the transmission parameters of at least one electromagnetic signal transmitting module in the vehicle environment according to the position of the at least one occupant, so that the electromagnetic radiation intensity at each occupant in the vehicle environment does not exceed the safety threshold.

[0030] In one possible embodiment of this disclosure, the at least one sensor includes a plurality of sensor groups with different priorities, and the sensor group includes one or more sensors;

[0031] The acquisition module is used for:

[0032] The sensor data collected by the sensors in multiple sensor groups are acquired sequentially in order of priority from low to high until the acquired sensor data meets the pose determination requirements.

[0033] In one possible embodiment of this disclosure, when the acquisition module is used to acquire sensing data collected by sensors within multiple sensor groups in ascending order of priority, it is used to:

[0034] After acquiring the sensor data collected by the sensors in any sensor group, if the acquired sensor data indicates the presence of occupants in the vehicle environment, and the acquired sensor data does not meet the pose determination requirements, then acquire the sensor data collected by the sensors in a sensor group with a higher priority than any of the sensor groups.

[0035] In one possible embodiment of this disclosure, the acquisition module is configured to, if the acquired sensing data indicates the presence of an occupant in the vehicle environment and the acquired sensing data does not meet the pose determination requirements, acquire sensing data collected by a sensor in a sensor group with a higher priority than any of the sensor groups, and is configured to:

[0036] If the acquired sensor data indicates the presence of an occupant in the vehicle environment, and the acquired sensor data does not meet the pose determination requirements, then sensor data collected by the sensor corresponding to the occupant's position in a sensor group with a higher priority than any of the sensor groups is acquired.

[0037] In one possible embodiment of this disclosure, the device further includes a tracking module for:

[0038] After determining the pose of at least one occupant in the vehicle environment, sensor data collected by sensors in at least one sensor group is acquired, and the pose of each occupant is tracked based on the acquired sensor data.

[0039] Based on the tracking results of each occupant's pose, the transmission parameters of at least one electromagnetic signal transmitting module in the vehicle environment are controlled in real time to ensure that the electromagnetic radiation intensity at each occupant's location in the vehicle environment does not exceed the safety threshold.

[0040] In one possible embodiment of this disclosure, the at least one sensor includes at least one of a pressure sensor, an ultrasonic sensor, an AON sensor, a UWB sensor, an optical camera, an infrared camera, and radar.

[0041] In one possible embodiment of this disclosure, the pose includes the position of each part of the occupant;

[0042] The control module is used for:

[0043] Based on the position of the at least one occupant, the transmission parameters of at least one electromagnetic signal transmitting module are controlled so that the electromagnetic radiation intensity at each part of each occupant in the vehicle environment does not exceed the safety threshold corresponding to that part.

[0044] In one possible embodiment of this disclosure, the control module is used to:

[0045] Based on the position of the at least one occupant, the transmission parameters of at least one electromagnetic signal transmitting module are controlled so that the electromagnetic radiation intensity at each occupant in the vehicle environment does not exceed a safety threshold, and the signal quality of each electromagnetic signal transmitting module meets preset requirements.

[0046] In one possible embodiment of this disclosure, the transmission parameters include at least one of power, beam direction, duty cycle, and transmission bandwidth.

[0047] According to a third aspect of the present disclosure, a computer program product is provided, including a computer program / instructions that, when executed by a processor, implement the steps of the method described in the first aspect.

[0048] According to a fourth aspect of the present disclosure, an electronic device is provided, the electronic device including a memory and a processor, the memory being configured to store computer instructions executable on the processor, and the processor being configured to implement the method of the first aspect when executing the computer instructions.

[0049] According to a fifth aspect of the present disclosure, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the method described in the first aspect.

[0050] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0051] The electromagnetic radiation control method provided in this disclosure acquires sensing data collected by at least one sensor in the vehicle environment; determines the pose of at least one occupant in the vehicle environment based on the acquired sensing data; and controls the transmission parameters of at least one electromagnetic signal transmitting module in the vehicle environment according to the pose of the at least one occupant, so that the electromagnetic radiation intensity at each occupant in the vehicle environment does not exceed a safety threshold. This method effectively controls electromagnetic radiation in the vehicle environment, ensuring that the electromagnetic radiation intensity at each occupant does not exceed a safety threshold, thereby preventing occupants from being exposed to electromagnetic radiation exceeding the safety threshold and avoiding any impact on their health. Attached Figure Description

[0052] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0053] Figure 1 This is a flowchart illustrating an exemplary embodiment of the electromagnetic radiation control method disclosed herein;

[0054] Figure 2 This is a schematic diagram illustrating the sensor installation location in a vehicle environment according to an exemplary embodiment of this disclosure;

[0055] Figure 3 This is a logic diagram illustrating an exemplary embodiment of the electromagnetic radiation control method disclosed herein;

[0056] Figure 4 This is a schematic diagram of the structure of an electromagnetic radiation control device shown in an exemplary embodiment of the present disclosure;

[0057] Figure 5 This is a structural block diagram of an electronic device illustrated in an exemplary embodiment of the present disclosure. Detailed Implementation

[0058] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0059] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0060] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0061] Based on the technical problems mentioned in the background art, in a first aspect, at least one embodiment of this disclosure provides an electromagnetic radiation control method, which can be applied to a vehicle terminal and can control electromagnetic radiation in the vehicle environment to protect the health of occupants in the vehicle environment from the effects of electromagnetic radiation.

[0062] Please refer to the appendix. Figure 1 The example illustrates the flow of an electromagnetic radiation control method, including steps S101 to S103.

[0063] In step S101, sensing data collected by at least one sensor in the vehicle environment is acquired.

[0064] In this step, at least one sensor can be a sensor already present in the vehicle in related technologies, or a sensor added to the vehicle by this method. That is, if a sensor required by this method already exists in the vehicle, the existing sensor can be reused; if a sensor required by this method does not exist in the vehicle, the sensor can be added to the vehicle.

[0065] For example, the at least one sensor includes at least one of a pressure sensor, an ultrasonic sensor, an AON sensor, a UWB sensor, an optical camera, an infrared camera, and radar.

[0066] Please refer to the appendix. Figure 2 The pressure sensor can be installed under the seat 104 and / or in the back area 106 to detect the presence of a person in the seat in real time and provide necessary support for the data from the ultrasonic sensor. The pressure sensor, used to confirm the presence of an occupant in the seat, consumes extremely low power and can serve as the first sensor to be activated, providing a global reference for the dynamic decisions of subsequent sensors.

[0067] Please refer to the appendix. Figure 2 Ultrasonic sensors can be installed in key areas inside the vehicle, such as under the seats 104 or on both sides 103, to detect the actual distance between the occupant and the antenna. Ultrasonic sensors are primarily used for short-range data acquisition, supplementing sensor blind spots, improving position estimation accuracy, and collaborating with other sensors to achieve fine-grained detection within a given area.

[0068] Please refer to the appendix. Figure 2 The UWB (Ultra-Wideband) sensor can be mounted in the center of the roof (102) to ensure coverage of the entire passenger area. Utilizing precise time-delay ranging technology, the UWB sensor provides high-precision position and distance information and exhibits good robustness in non-line-of-sight environments. The UWB sensor can supplement information from millimeter-wave radar and optical cameras to further optimize spatial positioning and serve as an auxiliary data source in low-power scenarios.

[0069] Please refer to the appendix. Figure 2The optical camera and AON (Always-On) sensor can be mounted near the top of the windshield 101 and the center rearview mirror 105. This location covers the occupant area inside the vehicle, ensuring effective occupant detection under various lighting conditions. The optical camera captures image data of the occupants, extracts key points (such as head, skeleton, etc.), and supports multimodal data-assisted recognition and behavior analysis. The AON sensor features low-power always-on functionality, enabling continuous collection of visual information in low-light or abnormal environments, supplementing data from the conventional optical camera, and providing highly real-time monitoring and anomaly warnings at critical moments. It should be understood that an optical camera with AON functionality can be used to integrate the optical camera and AON sensor, meaning that when the optical camera is not in image acquisition mode, it functions as an AON sensor.

[0070] Please refer to the appendix. Figure 2 The infrared camera can be placed in the center 102 of the vehicle, above the occupant detection area; or it can be placed around the seats 103 to detect the thermal radiation of the occupants and improve the detection capability in low light conditions.

[0071] The radar is preferably millimeter-wave radar, which provides high-precision positioning data. Millimeter-wave radar utilizes high-frequency signal transmission and reception technology to acquire the occupant's motion state and environmental characteristics, converting distance data into spatial coordinates. Considering the radar's high power consumption, the scanning range can be dynamically adjusted using information from other low-power sensors, scanning only the necessary areas. Please refer to the appendix. Figure 2 The radar can be installed near the top of the windshield 101 and the center rearview mirror 105. This location can cover the passenger area inside the vehicle, ensuring effective detection of occupants under various lighting conditions. Preferably, the combination of an optical camera with AON function and the radar is placed near the top of the windshield 101 and the center rearview mirror 105.

[0072] In step S102, the pose of at least one occupant in the vehicle environment is determined based on the acquired sensor data.

[0073] The occupant's position and posture may include the occupant's location and posture. Preferably, the occupant's position and posture also include the location and posture of each part of the occupant's body, such as the location and posture of the head, upper limbs, lower limbs, and torso.

[0074] For example, algorithms such as Kalman filtering and machine learning models can be used to extract features from various sensor data. For instance, computer vision techniques can be used to extract optical feature points, such as those on the head, shoulders, and torso, from optical camera data or AON data. Similarly, motion features and distance information can be extracted from millimeter-wave radar and ultrasonic sensor data. Furthermore, matching algorithms can be used to fuse the features extracted from various sensor data to obtain accurate 3D positioning, i.e., occupant pose.

[0075] Specific matching algorithms can include nearest neighbor matching and least squares matching. Nearest neighbor matching finds the closest millimeter-wave radar measurement feature point for each optical feature point, calculates the distance, and generates a matching pair. Least squares matching processes the paired data (i.e., the matching pairs formed by the optical feature point and the millimeter-wave radar measurement feature point) to minimize the overall error; the specific calculation is shown in the following formula:

[0076] min∑(yi-Aix)^2,

[0077] In the above formula, yi is the observed value, which refers to the feature points actually measured by each sensor, such as the coordinates of key points of the occupant's body captured by the optical / infrared camera, the distance and azimuth data measured by the millimeter-wave radar, the distance reading returned by the ultrasonic sensor, the accurate time delay ranging value of the UWB sensor, and the pressure distribution data of the seat pressure sensor.

[0078] In the above formula, x is the parameter to be estimated, which refers to the actual three-dimensional position and attitude parameters of the occupant that the system attempts to determine. It is the result obtained by solving the least squares problem, including spatial coordinates (X, Y, Z), attitude angles (roll, pitch, yaw), and body size parameters. Spatial coordinates (X, Y, Z) represent the actual positions of the key parts of the occupant in the vehicle space, attitude angles (roll, pitch, yaw) represent the tilt and rotation angles of the occupant's body, and body size parameters represent the occupant's height, body shape, etc. The initial state can be set based on historical data, default human body model, or preliminary measurement results.

[0079] In the above formula, Ai is the observation matrix, which represents the linear transformation matrix that transforms the parameter x to be estimated into the observation space. It includes the sensor's calibration parameters, coordinate system transformation relationships, and projection model. Ai has different forms for different sensors. For example, for optical cameras, it includes the intrinsic and extrinsic parameter matrices of the optical camera (the intrinsic parameter matrix describes the internal optical characteristics of the optical camera and projects the three-dimensional points in the optical camera coordinate system onto the image plane; the extrinsic parameter matrix describes the position and orientation of the optical camera in the vehicle coordinate system and includes rotation matrices and translation vectors); for radar / ultrasonic sensors, it includes the installation position and angle calibration parameters.

[0080] Taking the estimation of the occupant's head position as an example:

[0081] Define the parameter to be estimated as x = [X_head, Y_head, Z_head] T ;

[0082] The optical camera provides observations y1 = [u, v] T (pixel coordinates);

[0083] Millimeter-wave radar provides observational data (Distance and angle);

[0084] Construct the observation matrix:

[0085] A1 maps 3D position to optical camera pixel coordinates;

[0086] A2 maps the 3D position to radar polar coordinates;

[0087] Solve the least squares problem to obtain the actual 3D coordinates of the head.

[0088] In step S103, the transmission parameters of at least one electromagnetic signal transmitting module in the vehicle environment are controlled according to the pose of the at least one occupant, so that the electromagnetic radiation intensity at each occupant in the vehicle environment does not exceed the safety threshold.

[0089] The electromagnetic radiation intensity mentioned in this step refers to the degree of impact of electromagnetic radiation on the human body. The impact of electromagnetic radiation on the human body can be characterized by SAR (specific absorption rate) and APD (average power density). SAR and APD are both important indicators for assessing the impact of electromagnetic radiation on the human body, but they function in different frequency ranges and application scenarios. SAR is suitable for low-frequency bands and is mainly used to assess equipment close to the human body; while APD is suitable for high-frequency bands and is used to assess electromagnetic radiation when equipment is at a greater distance from the human body. The safety threshold characterizes the upper limit of electromagnetic radiation intensity that the human body can tolerate; that is, electromagnetic radiation with an intensity not exceeding the safety threshold can affect human health.

[0090] For example, the transmission parameters include at least one of power, beam direction, duty cycle, and transmission bandwidth.

[0091] This step aims to improve the safety of vehicle occupants. When a critical part of an occupant's body (such as the head and torso) is detected near the antenna area, the system automatically adjusts the electromagnetic radiation emission parameters to ensure that the electromagnetic energy absorbed by the human body remains within safe thresholds. To achieve this goal, the system uses intelligent control methods to effectively reduce electromagnetic radiation to the human body in the peak SAR area while ensuring communication quality, thereby minimizing potential health risks.

[0092] Wireless power transmission in vehicles is multi-source. In this system, not only wireless communication requires transmission power control, but also involves various signal sources such as V2X (vehicle-to-everything), Wi-Fi, and cellular networks (such as 4G and 5G). The transmission power of these signal sources also needs to be taken into account to ensure that the overall electromagnetic exposure is within a safe range.

[0093] After determining the occupant's position, the SAR / APD value of electromagnetic radiation at the occupant's location can be determined by consulting the "Distance-Power-Antenna Direction-Peak SAR Curve Table" based on the current parameters of each electromagnetic signal transmitting module. If the value exceeds the safety threshold, the transmission parameters of at least one electromagnetic signal transmitting module can be adjusted to reduce the SAR / APD value of electromagnetic radiation at the occupant's location to within the safety threshold.

[0094] For example, this step can control the transmission parameters of at least one electromagnetic signal transmitting module based on the posture of the at least one occupant, so that the electromagnetic radiation intensity at each part of each occupant in the vehicle environment does not exceed the safety threshold corresponding to that part. That is, the electromagnetic radiation intensity at each part of the occupant is determined separately. If the electromagnetic radiation intensity at a certain part is higher than the safety threshold, the electromagnetic radiation intensity at that part is reduced to within the safety threshold by controlling the transmission parameters of at least one electromagnetic signal transmitting module, thereby protecting the occupant and preventing the occupant from being affected by electromagnetic radiation.

[0095] This example provides targeted protection for each part of the occupant's body, giving priority to important areas such as the head, thereby further improving the method's effectiveness in protecting occupant safety.

[0096] As another example, this step can control the transmission parameters of at least one electromagnetic signal transmitting module according to the position of the at least one occupant, so that the electromagnetic radiation intensity at each occupant in the vehicle environment does not exceed the safety threshold, and the signal quality of each electromagnetic signal transmitting module meets the preset requirements.

[0097] This example ensures that the signal quality of each electromagnetic signal transmitting module meets preset requirements while controlling the electromagnetic radiation intensity in the vehicle environment. This ensures communication effectiveness while protecting the safety of passengers and avoids the method affecting communication quality.

[0098] It should be understood that the two examples above can be used in combination. That is, the transmission parameters of at least one electromagnetic signal transmitting module can be controlled according to the position of the at least one occupant, so that the electromagnetic radiation intensity at each part of each occupant in the vehicle environment is not higher than the safety threshold corresponding to the part, and the signal quality of each electromagnetic signal transmitting module meets the preset requirements.

[0099] To meet the parameter control requirements proposed in the above embodiments, such as ensuring that the electromagnetic radiation intensity at each occupant's location in the vehicle environment does not exceed a safety threshold, ensuring that the electromagnetic radiation intensity at each part of each occupant's location in the vehicle environment does not exceed the safety threshold corresponding to that part, ensuring that the electromagnetic radiation intensity at each occupant's location in the vehicle environment does not exceed a safety threshold, and ensuring that the signal quality of each electromagnetic signal transmitting module meets preset requirements, this step can use methods such as sliding average time window, beam direction adjustment, duty cycle control, frequency selection, BWP (Bandwidth part) backoff mechanism, and power control to control the transmission parameters of at least one electromagnetic signal transmitting module.

[0100] Moving average time window: Based on the SAR averaging time requirements specified by relevant agencies, the transmit power is dynamically adjusted within a specific time window to ensure that the cumulative SAR value within any moving time window does not exceed the safety limit, thus achieving a balance between short-term high-power transmission and long-term security.

[0101] Beam direction adjustment: Precisely control the direction of the antenna array beam to concentrate energy on non-sensitive areas, minimizing radiation to critical parts of the occupants while effectively maintaining communication quality.

[0102] Duty cycle control: Adjusting the proportion of transmission time in the time dimension reduces the average transmission power. It has little impact on instantaneous communication quality, but can significantly reduce the cumulative SAR / APD value.

[0103] Frequency selection: Utilize the different propagation characteristics of each frequency band to select a frequency band with relatively low SAR / APD. Note that this method may be limited by the availability of spectrum resources.

[0104] BWP (Bandwidth part) fallback mechanism: Reduces transmission bandwidth when necessary, thereby reducing transmission power. Although it has some impact on data transmission rate, it can maintain basic communication functions.

[0105] Power control: Directly reduce the wireless transmission power to control SAR / APD in the fastest way, but this method may have a significant impact on communication coverage and link stability.

[0106] Optionally, the above manners can be flexibly combined and used according to considerations from different perspectives:

[0107] From the perspective of implementation complexity (from low to high): power control < duty cycle control < BWP fallback < frequency selection < beam direction adjustment < moving average time window.

[0108] From the perspective of occupant experience (from best to worst): beam direction adjustment > moving time window method > duty cycle control > frequency selection > BWP fallback > power control.

[0109] From the perspective of deployment cost (from low to high): power control < duty cycle control < BWP fallback < frequency selection < beam direction adjustment < moving time window method.

[0110] Preferably, the moving time window method is taken as the leading strategy, and beam direction adjustment and duty cycle control are selectively combined according to scenario requirements, so as to realize multi-dimensional comprehensive control over SAR / APD on the premise of taking communication quality into account. The latest adjusted transmission parameters (including power, beam direction, duty cycle, frequency or BWP state) are fed back to the main control system in real time, and the main control system further detects the communication link state, so as to ensure that the system maintains high-quality communication experience while reducing electromagnetic radiation. In addition, considering the transmission of various electromagnetic radiations such as V2X, Wi-Fi and cellular networks, the system will comprehensively analyze the power transmission of each signal transmission module to ensure the overall electromagnetic impact is minimized.

[0111] This control process ensures that the occupants in the vehicle are always in a safe electromagnetic environment during vehicle communication through a multi-dimensional and hierarchical strategy combination, while taking into account various factors such as system implementation complexity, occupant experience and deployment cost.

[0112] In the electromagnetic radiation control method provided by the embodiments of the present disclosure, sensing data collected by at least one sensor in the vehicle-mounted environment is acquired; based on the acquired sensing data, the pose of at least one occupant in the vehicle-mounted environment is determined; and then the transmission parameters of at least one electromagnetic signal transmission module in the vehicle-mounted environment are controlled according to the pose of the at least one occupant, so that the electromagnetic radiation intensity at each occupant position in the vehicle-mounted environment is not higher than the safety threshold. This method effectively controls the electromagnetic radiation in the vehicle-mounted environment, so that the electromagnetic radiation intensity at each occupant position in the vehicle-mounted environment is not higher than the safety threshold, thereby preventing the occupants from being exposed to electromagnetic radiation higher than the safety threshold, and avoiding the impact of electromagnetic radiation on the health of the occupants.

[0113] In some embodiments of this disclosure, the at least one sensor includes multiple sensor groups with different priorities, and each sensor group includes one or more sensors. For example, low-power, low-precision sensors can be added to lower-priority sensor groups, and high-power, high-precision sensors can be added to higher-priority sensor groups.

[0114] Based on the division of sensor groups, step S101 in the above embodiment can be performed as follows: sequentially acquire the sensing data collected by the sensors in multiple sensor groups in order of priority from low to high, until the acquired sensing data meets the pose determination requirements.

[0115] For example, after acquiring sensor data from any sensor group, if the acquired sensor data indicates the presence of an occupant in the vehicle environment, and the acquired sensor data does not meet the pose determination requirements, then sensor data from a sensor group with a higher priority than the aforementioned sensor group is acquired. In other words, the presence of an occupant in the vehicle environment is determined by the low-priority sensor group (generally with lower power consumption and lower accuracy), and the occupant's position is roughly located, such as their exact location; when an occupant is present in the vehicle, the high-priority sensor group (generally with higher power consumption and higher accuracy) is activated for precise pose determination.

[0116] Preferably, if the acquired sensor data indicates the presence of an occupant in the vehicle environment, and the acquired sensor data does not meet the pose determination requirements, then sensor data collected by the sensor corresponding to the occupant's position within a sensor group with a higher priority than any of the aforementioned sensor groups is acquired. In other words, when a lower-priority sensor group determines the presence of an occupant in the vehicle environment, it can further roughly determine the occupant's position within the vehicle environment, such as which seat the occupant is located in; the determined position can guide the selective activation and data collection of sensors within the higher-priority sensor group, thereby further reducing power consumption and improving the targeting of data collection.

[0117] For example, if the at least one sensor includes a pressure sensor, an ultrasonic sensor, an AON sensor, a UWB sensor, an optical camera, an infrared camera, and radar, then the pressure sensor and ultrasonic sensor can be used as a low-priority sensor group, the ultrasonic sensor, AON sensor, and UWB sensor can be used as a medium-priority sensor group, and the optical camera, infrared camera, and radar can be used as a high-priority sensor group. Initial detection and prediction can be performed using the low-priority sensor group, followed by auxiliary positioning and region subdivision using the medium-priority sensor group, and finally, detailed image acquisition and high-power detection using the high-priority sensor group, to obtain sensor data that meets the pose determination requirements.

[0118] In the initial detection and prediction, a pressure sensor can be used to detect whether there is a person in the seat, quickly obtaining preliminary information in a low-power state; and an ultrasonic sensor can be used to closely follow the pressure data to perform precise close-range distance measurement and verify the occupant's position.

[0119] In assisted positioning and area segmentation, UWB sensors can first perform ranging in non-line-of-sight environments based on preliminary location information, providing high-precision location information to supplement and guide the working area of ​​subsequent optical cameras and millimeter-wave radars; and enable AON sensors to operate continuously and with low power consumption to monitor the occupant status in real time, providing key visual data even in low light or abnormal environments.

[0120] In detailed image acquisition and high-power detection, optical / infrared cameras combined with AON data are used to obtain detailed images and feature information for extracting key points and skeleton information; and millimeter-wave radar is used to perform fine scanning of selected areas to reduce unnecessary energy consumption.

[0121] The sensor modules mentioned above achieve data fusion through the main control unit, dynamically selecting whether to activate high-power modules based on the judgments provided by existing sensors. Information sharing among multiple communication devices avoids repeated scanning of the same area, thereby reducing power consumption and optimizing the overall system response.

[0122] It should be understood that after determining the pose of at least one occupant within the vehicle environment, sensor data collected by sensors in at least one sensor group can be acquired, and the pose of each occupant can be tracked based on the acquired sensor data. Based on the tracking results of each occupant's pose, the transmission parameters of at least one electromagnetic signal transmitting module within the vehicle environment can be controlled in real time to ensure that the electromagnetic radiation intensity at each occupant's location within the vehicle environment does not exceed a safety threshold. In other words, during the initial operation of this method, the occupant's pose can be determined based on at least one sensor group, and then the occupant's pose can be tracked based on at least one sensor group, with the electromagnetic radiation transmission parameters controlled in real time accordingly to protect the occupant's safety. For example, during the tracking phase, sensor data collected by an AON sensor can be used for tracking to reduce power consumption; of course, if the AON tracking results indicate that the occupant's pose change is too large during the tracking phase, high-precision sensors such as optical cameras and radar can be further activated for precise positioning to assist tracking and ensure tracking accuracy.

[0123] The following is an example of an occupant positioning and tracking method that combines the above embodiments. The method includes steps such as data acquisition, attitude estimation, near-field data processing, multi-source data fusion, and real-time monitoring and feedback.

[0124] Data Acquisition: The system first detects occupants using pressure sensors, then activates ultrasonic sensors to acquire precise close-range measurement data. Once the basic status is confirmed, the UWB module and AON sensors enter operational mode, providing continuous low-power positioning monitoring and preliminary image analysis. Optical / infrared cameras are activated as needed to acquire detailed image data and thermal source information, while millimeter-wave radar is activated to generate range-Doppler images, enabling precise measurement of occupant distance and relative speed.

[0125] Pose estimation: Based on the predictions from the AON sensor, the system determines whether to initiate a full deep learning processing flow, using a convolutional neural network to extract features and analyze pose from the image data. Combined with thermal radiation data captured by the infrared sensor, the system further enhances the accuracy of pose recognition, especially in low-light environments. Precise positioning data provided by UWB is used to optimize the millimeter-wave radar scanning area, ensuring the system outputs accurate coordinate information for various occupant body parts, ultimately forming a complete 3D pose estimation model. Subsequently, a dynamic feature tracking algorithm continuously updates the pose information, enabling real-time monitoring.

[0126] Near-field data processing: Pressure sensors continuously monitor seat occupancy, providing the system with basic trigger signals and contact status information. Guided by pressure data, ultrasonic sensors perform precise distance measurements in specific areas, providing relative position data between the occupant and the vehicle's interior structure. The system cross-validates this near-field data with UWB positioning results to ensure measurement accuracy and reliability. Through comprehensive analysis of multi-source near-field data, the system can accurately grasp the occupant's real-time position and changes in contact status.

[0127] Multi-source data fusion: The main control unit processes data from each sensor sequentially according to energy consumption priority, and uses feature matching algorithms (nearest neighbor matching, Kalman filtering, etc.) for data fusion. The system integrates image recognition results, thermal imaging data, distance measurement information, and pressure data in multiple dimensions to achieve precise positioning and tracking of key parts of the occupant, such as the head and torso. Based on the fused data, the system constructs a complete dynamic model of the occupant and maintains the accuracy of the model through real-time updates. By leveraging the complementarity of multi-sensor data, the system can overcome the limitations of a single sensor and provide more reliable monitoring results.

[0128] Real-time monitoring and feedback: The processing results are transmitted to the main control unit for further analysis, and key information such as occupant pose and SAR / APD at the occupant location is output in real time.

[0129] This method combines multiple data sources, including optical cameras (or infrared cameras), millimeter-wave radar, ultrasonic sensors, and seat pressure sensors, and utilizes data fusion algorithms (such as Kalman filtering and machine learning) to obtain high-precision estimates of the occupant's three-dimensional position and attitude. Based on this, it controls the intensity of electromagnetic radiation within the vehicle environment to protect the occupant's health. Furthermore, by matching visual recognition results (such as head position and skeletal information) with motion features or distance data detected by millimeter-wave radar, this method maintains accurate positioning even in complex environments.

[0130] Please refer to the appendix. Figure 3 The example illustrates an electromagnetic radiation control method combining the above-described embodiments. This method includes, in sequence, data acquisition, data preprocessing, coordinate and attitude estimation, data processing and fusion (sensor data integration, feature matching algorithm, crew dynamic model), real-time analysis by the main control unit, looking up the example-power-antenna orientation-peak SAR curve table, determining whether the transmission module needs adjustment, and executing SAR optimization strategies or continuing the current transmission settings based on the lookup table values.

[0131] According to a second aspect of the embodiments of this disclosure, an electromagnetic radiation control device is provided. Please refer to the appendix. Figure 4 The device includes:

[0132] The acquisition module 401 is used to acquire sensing data collected by at least one sensor in the vehicle environment;

[0133] The determination module 402 is used to determine the pose of at least one occupant in the vehicle environment based on the acquired sensor data.

[0134] The control module 403 is used to control the transmission parameters of at least one electromagnetic signal transmitting module in the vehicle environment according to the position of the at least one occupant, so that the electromagnetic radiation intensity at each occupant in the vehicle environment does not exceed the safety threshold.

[0135] In one possible embodiment of this disclosure, the at least one sensor includes a plurality of sensor groups with different priorities, and the sensor group includes one or more sensors;

[0136] The acquisition module is used for:

[0137] The sensor data collected by the sensors in multiple sensor groups are acquired sequentially in order of priority from low to high until the acquired sensor data meets the pose determination requirements.

[0138] In one possible embodiment of this disclosure, when the acquisition module is used to acquire sensing data collected by sensors within multiple sensor groups in ascending order of priority, it is used to:

[0139] After acquiring the sensor data collected by the sensors in any sensor group, if the acquired sensor data indicates the presence of occupants in the vehicle environment, and the acquired sensor data does not meet the pose determination requirements, then acquire the sensor data collected by the sensors in a sensor group with a higher priority than any of the sensor groups.

[0140] In one possible embodiment of this disclosure, the acquisition module is configured to, if the acquired sensing data indicates the presence of an occupant in the vehicle environment and the acquired sensing data does not meet the pose determination requirements, acquire sensing data collected by a sensor in a sensor group with a higher priority than any of the sensor groups, and is configured to:

[0141] If the acquired sensor data indicates the presence of an occupant in the vehicle environment, and the acquired sensor data does not meet the pose determination requirements, then sensor data collected by the sensor corresponding to the occupant's position in a sensor group with a higher priority than any of the sensor groups is acquired.

[0142] In one possible embodiment of this disclosure, the device further includes a tracking module for:

[0143] After determining the pose of at least one occupant in the vehicle environment, sensor data collected by sensors in at least one sensor group is acquired, and the pose of each occupant is tracked based on the acquired sensor data.

[0144] Based on the tracking results of each occupant's pose, the transmission parameters of at least one electromagnetic signal transmitting module in the vehicle environment are controlled in real time to ensure that the electromagnetic radiation intensity at each occupant's location in the vehicle environment does not exceed the safety threshold.

[0145] In one possible embodiment of this disclosure, the at least one sensor includes at least one of a pressure sensor, an ultrasonic sensor, an AON sensor, a UWB sensor, an optical camera, an infrared camera, and radar.

[0146] In one possible embodiment of this disclosure, the pose includes the position of each part of the occupant;

[0147] The control module is used for:

[0148] Based on the position of the at least one occupant, the transmission parameters of at least one electromagnetic signal transmitting module are controlled so that the electromagnetic radiation intensity at each part of each occupant in the vehicle environment does not exceed the safety threshold corresponding to that part.

[0149] In one possible embodiment of this disclosure, the control module is used to:

[0150] Based on the position of the at least one occupant, the transmission parameters of at least one electromagnetic signal transmitting module are controlled so that the electromagnetic radiation intensity at each occupant in the vehicle environment does not exceed a safety threshold, and the signal quality of each electromagnetic signal transmitting module meets preset requirements.

[0151] In one possible embodiment of this disclosure, the transmission parameters include at least one of power, beam direction, duty cycle, and transmission bandwidth.

[0152] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments of the method in the first aspect, and will not be elaborated upon here.

[0153] According to a third aspect of the present disclosure, a computer program product is provided, including a computer program / instructions that, when executed by a processor, implement the steps of the method described in the first aspect.

[0154] According to the fourth aspect of the embodiments of this disclosure, please refer to the appendix. Figure 5 The diagram illustrates, for example, a block diagram of an electronic device. For instance, device 500 could be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0155] Reference Figure 5 The device 500 may include one or more of the following components: processing component 502, memory 504, power supply component 506, multimedia component 508, audio component 55, input / output (I / O) interface 512, sensor component 514, and communication component 516.

[0156] Processing component 502 typically controls the overall operation of device 500, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 502 may include one or more processors 520 to execute instructions to complete all or part of the steps of the methods described above. Furthermore, processing component 502 may include one or more modules to facilitate interaction between processing component 502 and other components. For example, processing component 502 may include a multimedia module to facilitate interaction between multimedia component 508 and processing component 502.

[0157] Memory 504 is configured to store various types of data to support the operation of device 500. Examples of this data include instructions for any application or method operating on device 500, contact data, phonebook data, messages, pictures, videos, etc. Memory 504 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0158] The power supply component 506 provides power to the various components of the device 500. The power supply component 506 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to the device 500.

[0159] Multimedia component 508 includes a screen that provides an output interface between the device 500 and the occupant. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the occupant. The touch panel includes one or more touch sensors to sense touch, swipe, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 508 includes a front-facing camera and / or a rear-facing camera. When the device 500 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0160] Audio component 55 is configured to output and / or input audio signals. For example, audio component 55 includes a microphone (MIC) configured to receive external audio signals when device 500 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 504 or transmitted via communication component 516. In some embodiments, audio component 55 also includes a speaker for outputting audio signals.

[0161] I / O interface 512 provides an interface between processing component 502 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0162] Sensor assembly 514 includes one or more sensors for providing status assessments of various aspects of device 500. For example, sensor assembly 514 may detect the on / off state of device 500, the relative positioning of components such as the display and keypad of device 500, changes in position of device 500 or a component of device 500, the presence or absence of occupant contact with device 500, orientation or acceleration / deceleration of device 500, and temperature changes of device 500. Sensor assembly 514 may also include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 514 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 514 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0163] Communication component 516 is configured to facilitate wired or wireless communication between device 500 and other devices. Device 500 can access wireless networks based on communication standards, such as WiFi, 2G or 3G, 4G or 5G, or combinations thereof. In one exemplary embodiment, communication component 516 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 516 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0164] In an exemplary embodiment, device 500 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the electromagnetic radiation control method of the aforementioned electronic device.

[0165] Fifthly, in exemplary embodiments, this disclosure also provides a non-transitory computer-readable storage medium including instructions, such as a memory 504 including instructions, which can be executed by a processor 520 of device 500 to complete the electromagnetic radiation control method of the aforementioned electronic device. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0166] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0167] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A method for controlling electromagnetic radiation, characterized in that, The method includes: Acquire sensor data collected by at least one sensor in the vehicle environment; Based on the acquired sensor data, the pose of at least one occupant in the vehicle environment is determined. Based on the position of the at least one occupant, the transmission parameters of at least one electromagnetic signal transmitting module in the vehicle environment are controlled so that the electromagnetic radiation intensity at each occupant in the vehicle environment does not exceed a safety threshold.

2. The electromagnetic radiation control method according to claim 1, characterized in that, The at least one sensor includes multiple sensor groups with different priorities, and each sensor group includes one or more sensors. The acquisition of sensing data collected by at least one sensor within the vehicle environment includes: The sensor data collected by the sensors in multiple sensor groups are acquired sequentially in order of priority from low to high until the acquired sensor data meets the pose determination requirements.

3. The electromagnetic radiation control method according to claim 2, characterized in that, The process of sequentially acquiring sensor data collected by sensors within multiple sensor groups in ascending order of priority includes: After acquiring the sensor data collected by the sensors in any sensor group, if the acquired sensor data indicates the presence of occupants in the vehicle environment, and the acquired sensor data does not meet the pose determination requirements, then acquire the sensor data collected by the sensors in a sensor group with a higher priority than any of the sensor groups.

4. The electromagnetic radiation control method according to claim 3, characterized in that, If the acquired sensor data indicates the presence of occupants in the vehicle environment, and the acquired sensor data does not meet the pose determination requirements, then sensor data collected by sensors in a sensor group with a higher priority than any of the sensor groups is acquired, including: If the acquired sensor data indicates the presence of an occupant in the vehicle environment, and the acquired sensor data does not meet the pose determination requirements, then sensor data collected by the sensor corresponding to the occupant's position in a sensor group with a higher priority than any of the sensor groups is acquired.

5. The electromagnetic radiation control method according to claim 2, characterized in that, After determining the pose of at least one occupant within the vehicle environment, the method further includes: Acquire sensor data collected by sensors in at least one sensor group, and track the pose of each occupant based on the acquired sensor data; Based on the tracking results of each occupant's pose, the transmission parameters of at least one electromagnetic signal transmitting module in the vehicle environment are controlled in real time to ensure that the electromagnetic radiation intensity at each occupant's location in the vehicle environment does not exceed the safety threshold.

6. The electromagnetic radiation control method according to any one of claims 1 to 5, characterized in that, The at least one sensor includes at least one of a pressure sensor, an ultrasonic sensor, an AON sensor, a UWB sensor, an optical camera, an infrared camera, and radar.

7. The electromagnetic radiation control method according to claim 1, characterized in that, The posture includes the position of each part of the occupant; The step of controlling the transmission parameters of at least one electromagnetic signal transmitting module based on the position of at least one occupant, so that the electromagnetic radiation intensity at each occupant location within the vehicle environment does not exceed a safety threshold, includes: Based on the position of the at least one occupant, the transmission parameters of at least one electromagnetic signal transmitting module are controlled so that the electromagnetic radiation intensity at each part of each occupant in the vehicle environment does not exceed the safety threshold corresponding to that part.

8. The electromagnetic radiation control method according to claim 1, characterized in that, The step of controlling the transmission parameters of at least one electromagnetic signal transmitting module based on the position of at least one occupant, so that the electromagnetic radiation intensity at each occupant location within the vehicle environment does not exceed a safety threshold, includes: Based on the position of at least one occupant, the transmission parameters of at least one electromagnetic signal transmitting module are controlled so that the electromagnetic radiation intensity at each occupant in the vehicle environment does not exceed the safety threshold, and the signal quality of each electromagnetic signal transmitting module meets the preset requirements.

9. The electromagnetic radiation control method according to claim 1, characterized in that, The transmission parameters include at least one of power, beam direction, duty cycle, and transmission bandwidth.

10. An electromagnetic radiation control device, characterized in that, The device includes: The acquisition module is used to acquire sensor data collected by at least one sensor in the vehicle environment; The determination module is used to determine the pose of at least one occupant in the vehicle environment based on the acquired sensor data. The control module is used to control the transmission parameters of at least one electromagnetic signal transmitting module in the vehicle environment according to the position of the at least one occupant, so that the electromagnetic radiation intensity at each occupant in the vehicle environment does not exceed the safety threshold.

11. A computer program product, comprising a computer program / instructions, characterized in that, When the computational program / instructions are executed by the processor, they implement the steps of the method described in any one of claims 1 to 9.

12. An electronic device, characterized in that, The electronic device includes a memory and a processor, the memory being used to store computer instructions that can be executed on the processor, and the processor being used to implement the method of any one of claims 1 to 9 when executing the computer instructions.

13. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the method of any one of claims 1 to 9.

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