Protection method, device and electric bed

Abstract

The embodiment of the present application proposes a protection method, device, and electric bed, wherein the electric bed includes a plurality of first sensors and an image acquisition device, wherein the method includes: detecting the pressure distribution information of the electric bed through the plurality of first sensors; obtaining the first image information of the target user on the electric bed through the image acquisition device; when the first image information of the target user indicates that the first target user and the second target user are included, and the first target user is obtained as an infant according to the first image information of the user and the pressure distribution information, detecting the position information of the first target user and the second target user; when the distance between the first target user and the second target user is less than a first preset distance value, outputting a prompt message. By analyzing the sleep data of the user collected by multiple sensors and outputting the prompt message, the safety and comfort of the user during sleep are improved.

Description

Technical Field

[0001] The present application relates to the field of electric beds, and in particular to a protection method, device, and electric bed. Background Art

[0002] With the development of science and technology and the improvement of people's quality of life, smart home products have gradually become popular in daily life, especially in the field of home care. Parents pay unprecedented attention to the safety and health of their children. Children's behavior during sleep is difficult to be continuously monitored. Traditional beds lack intelligent safety protection measures and cannot monitor and warn potential risks in real time. How to achieve intelligent safety monitoring and protection for users of electric beds and improve the safety of children's night rest and parents' peace of mind is an urgent problem to be solved. Summary of the invention

[0003] The embodiments of the present application provide a protection method, device, and electric bed. The method collects data of the user during sleep by analyzing multiple sensors, outputs prompt information, and improves the safety and comfort of the user during sleep.

[0004] The first aspect of the present application provides a protection method, which is applied to an electric bed, wherein the electric bed includes a plurality of first sensors and an image acquisition device, and the method includes:

[0005] Detecting pressure distribution information of the electric bed by using a plurality of the first sensors;

[0006] Obtaining first image information of a target user on the electric bed through the image acquisition device;

[0007] When the target user first image information indicates that the target user includes a first target user and a second target user, obtaining that the first target user is an infant according to the user first image information and pressure distribution information;

[0008] Detecting location information of the first target user and the second target user;

[0009] When the distance between the first target user and the second target user is less than a first preset distance value, a prompt message is output.

[0010] In some possible embodiments, the electric bed further includes at least one second sensor, and before detecting the position information of the first target user and the second target user, the method further includes:

[0011] obtaining first physiological characteristic information of the target user through a second sensor;

[0012] Whether the user is in a sleeping state is determined by the first physiological characteristic information. When any of the target users is in a sleeping state, the step of detecting the location information of the first target user and the second target user is entered.

[0013] In some possible embodiments, obtaining that the first target user is an infant according to the first image information and pressure distribution information of the user includes:

[0014] Obtaining a first judgment result according to the head-to-body ratio information and the height information of the target user in the first image information of the user;

[0015] Obtaining a second judgment result according to the pressure distribution and weight of the first target user and the second target user in the pressure distribution information;

[0016] When the first judgment result and the second judgment result both indicate that the first target user is an infant, it is determined that the first target user is an infant.

[0017] In some possible embodiments, obtaining the second judgment result according to the pressure distribution and weight of the first target user and the second target user in the pressure distribution information includes:

[0018] Obtaining respectively the uniformity of the pressure distribution of the first target user and the second target user, and the weight of the first target user and the second target user according to the pressure distribution information;

[0019] When the pressure distribution uniformity of the first target user is within a preset infant uniformity range and the weight of the first target user is within a preset infant weight range, a second judgment result is obtained, indicating that the first target user is an infant.

[0020] In some possible embodiments, a plurality of air bags are installed on the electric bed body, and the method further includes:

[0021] When the distance between the first target user and the second target user is less than a first preset distance value, the airbag under the body of the second target user is controlled to inflate so that the second target user changes his sleeping posture, so that the distance between the first target user and the second target user is greater than the first preset distance value.

[0022] In some possible embodiments, the electric bed body is provided with a plurality of vibrators, and the method further comprises:

[0023] When the distance between the first target user and the second target user is less than a first preset distance value, controlling the target vibrator to vibrate, the target vibrator being used to indicate a vibrator at a position of the second target user;

[0024] After the target vibrator vibrates, second image information of the second target user is obtained through the image acquisition device and second physiological characteristic information of the second target user is obtained through the second sensor. When it is determined that the second target user is in a non-sleeping state based on the second image information and the second physiological characteristic information, the target vibrator stops vibrating.

[0025] In some possible embodiments, after detecting the location information of the first target user and the second target user, the method further includes:

[0026] When the position information of the first target user indicates that the first target user is less than a second preset distance value away from the edge of the electric bed, the airbag under the body of the first target user close to the edge of the electric bed is controlled to inflate so that the body of the first target user changes its posture toward the direction away from the edge of the electric bed.

[0027] In some possible embodiments, the physiological characteristic information includes a blood oxygen saturation value, a heart rate value, and a blood pressure value, and the method further includes:

[0028] When any value of the first physiological characteristic information is lower than the corresponding preset value, an alarm message is output and the vibrator is controlled to vibrate, and the vibration amplitude is greater than the preset vibration amplitude.

[0029] A second aspect of the present application provides a protective device, which is applied to an electric bed. The electric bed includes a plurality of first sensors and an image acquisition device. The method includes:

[0030] An acquisition module, used for acquiring first image information of a target user on the electric bed through the image acquisition device;

[0031] a detection module, configured to detect pressure distribution information of the electric bed through a plurality of the first sensors; and when the first image information of the target user indicates that the first target user and the second target user are included, and when the first target user is obtained as an infant according to the first image information of the user and the pressure distribution information, detecting position information of the first target user and the second target user;

[0032] The output module is configured to output prompt information when the distance between the first target user and the second target user is less than a first preset distance value.

[0033] The third aspect of the present application provides an electric bed, which includes a plurality of first sensors and an image acquisition device, including:

[0034] processor;

[0035] a memory for storing instructions executable by the processor;

[0036] Wherein, the processor is configured to execute the instructions to implement the protection method as described in any one of the embodiments of the first aspect of the present application.

[0037] The technical solution provided by the embodiment of the present application includes at least the following beneficial effects:

[0038] The embodiment of the present application provides a protection method, which is applied to an electric bed, wherein the electric bed includes a plurality of first sensors and an image acquisition device, and the method includes: detecting the pressure distribution information of the electric bed through the plurality of first sensors; obtaining the first image information of the target user on the electric bed through the image acquisition device; when the first image information of the target user indicates that it includes a first target user and a second target user, obtaining that the first target user is an infant according to the first image information of the user and the pressure distribution information; detecting the position information of the first target user and the second target user; and outputting a prompt message when the distance between the first target user and the second target user is less than a first preset distance value. The method can identify whether there are multiple users on the electric bed, and pays special attention to the presence of infants. When it is detected that the distance between an infant and another user is too close, a prompt message will be output, thereby avoiding potential risks to infants due to the close distance between users, such as crushing or suffocation. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A schematic diagram of an application scenario of a protection method proposed in an embodiment of the present application;

[0040] Figure 2 A schematic diagram of a protection method according to an embodiment of the present application;

[0041] Figure 3 A flowchart of another protection method proposed in an embodiment of the present application;

[0042] Figure 4 A flowchart of another protection method proposed in an embodiment of the present application;

[0043] Figure 5 A flowchart of another protection method proposed in an embodiment of the present application;

[0044] Figure 6 A flowchart of another protection method proposed in an embodiment of the present application;

[0045] Figure 7 A schematic diagram of the structure of a protective device proposed in an embodiment of the present application;

[0046] Figure 8 This is a schematic diagram of the structure of another protective device proposed in an embodiment of the present application. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0048] In order to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first" and "second" are used to distinguish the same items or similar items with substantially the same functions and effects. For example, the first instruction and the second instruction are to distinguish different user instructions, and their order is not limited. Those skilled in the art can understand that the words "first" and "second" do not limit the quantity and execution order, and the words "first" and "second" do not necessarily limit them to be different.

[0049] It should be noted that, in the embodiments of the present application, words such as "exemplarily" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplarily" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplarily" or "for example" is intended to present related concepts in a specific way.

[0050] In addition, "at least one" means one or more, and "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c can mean: a, or b, or c, or a and b, or a and c, or b and c, or a, b and c, where a, b, c can be single or multiple.

[0051] It should be noted that in the embodiments of the present application, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0052] With the rapid development of science and technology and the continuous improvement of people's quality of life, smart home products have gradually penetrated into every corner of daily life, especially in the field of home care. Parents pay unprecedented attention to the safety and health of their children. Children's behavior during sleep is difficult to be continuously monitored, which makes it impossible for parents to ensure the safety of their children at all times. Traditional beds are simple in design and lack intelligent safety protection measures. They cannot monitor and warn potential risks in real time, such as children falling off the bed, kicking off the quilt and catching a cold, or even adults accidentally oppressing infants and young children. Faced with these challenges, how to achieve intelligent safety monitoring and protection for users on electric beds has not only become a problem that modern families need to solve, but also represents a new direction for the development of smart home technology.

[0053] The design of traditional children's beds mainly focuses on basic functions, such as providing a comfortable sleeping environment and certain physical protection (such as guardrails). However, they usually do not have intelligent safety features and cannot actively sense or respond to the dynamic changes of children during sleep. For example, at night, when a child approaches the bed, traditional beds cannot issue a warning. More importantly, when adults and infants sleep in the same bed, traditional beds cannot prevent adults from accidentally pressing on infants due to turning over or moving, which poses a serious threat to the safety of infants.

[0054] In order to solve the above technical problems, an embodiment of the present application proposes a protection method, which is applied to an electric bed, and the electric bed includes multiple first sensors and an image acquisition device. The method includes: detecting pressure distribution information of the electric bed through multiple first sensors; obtaining first image information of a target user on the electric bed through the image acquisition device; when the first image information of the target user indicates that it includes a first target user and a second target user, obtaining the first target user as an infant based on the first image information and pressure distribution information of the user; detecting position information of the first target user and the second target user; and outputting a prompt message when the distance between the first target user and the second target user is less than a first preset distance value.

[0055] The following is a detailed explanation of an application scenario example of an embodiment of the present application. For example, Figure 1 As shown, it includes: an electric bed 101, a first sensor 102, and an image acquisition device 103.

[0056] Exemplarily, the electric bed continuously monitors the pressure distribution of the bed surface through multiple first sensors 102, and obtains the first image information on the bed surface through the image acquisition device 103. When the first image information contains two target users, it is further determined whether one of them is an infant in combination with the pressure distribution information, for example, accurately distinguishing between adults and infants based on weight and body contour characteristics. Once the presence of an infant is confirmed, the positional relationship between the two target users, namely the infant (first target user) and the adult (second target user), is continuously monitored, and the relative distance between the two is continuously updated to ensure that any potential risks can be responded to in a timely manner. If it is found that the distance between the adult and the infant is less than the preset safety threshold (first preset distance value), the system will immediately trigger the early warning mechanism, issue a sound or vibration prompt, and remind the adult to keep a safe distance to avoid unnecessary pressure or other dangers to the infant.

[0057] Exemplarily, in the embodiment of the present application, the first sensor 102 and the image acquisition device 103 are important components for realizing key functions. Optionally, the first sensor 102 can be a thin film pressure sensor, a resistive pressure sensor, a capacitive pressure sensor or a force-sensitive resistor laid under the bed surface. These sensors can accurately capture the changes in pressure exerted on the bed surface by various parts of the user's body, and send the data to the central processing unit for analysis, so as to accurately identify the user's body size and position on the bed. Optionally, the image acquisition device 103 can be a device such as a high-definition camera, an infrared camera or a 3D depth perception camera installed on the ceiling or wall above the electric bed, which is used to capture the visual image information of the user on the bed in real time. It should be understood that in the embodiment of the present application, there is no restriction on the selection of the first sensor and the image acquisition device.

[0058] After understanding an application scenario of an embodiment of the present application, an exemplary execution step of the protection method proposed in the embodiment of the present application is explained in detail below. Figure 2 As shown, the method is applied to an electric bed, the electric bed includes a plurality of first sensors and an image acquisition device, and the method includes:

[0059] Step 201: Detecting pressure distribution information of the electric bed through a plurality of the first sensors;

[0060] For example, a thin film pressure sensor can be laid under the bed surface, and with its good flexibility and high sensitivity, it can capture the pressure applied by various parts of the user's body; a resistive pressure sensor measures pressure through the change in resistance caused by material deformation, and is suitable for long-term use due to its durability; a capacitive pressure sensor works on the principle of capacitance and can sensitively reflect changes in pressure when objects are in contact or approach; a force-sensitive resistor adjusts its resistance value according to changes in the force it is subjected to, and is very suitable for use as a pressure sensing element.

[0061] For example, the sensors can be evenly distributed on the electric bed, such as in the head, waist and foot areas, ensuring full coverage and accurate monitoring of pressure distribution.

[0062] Exemplarily, the pressure distribution may be presented in the form of a pressure diagram, showing the weight distribution of the user on the bed.

[0063] Exemplarily, the pressure map can be a two-dimensional or three-dimensional image constructed based on data obtained from multiple sensors distributed on the mattress. It uses color coding or grayscale changes to represent the pressure intensity of different areas, where darker colors generally represent higher pressure values, while lighter colors correspond to lower pressure. Through this "pressure map", the electric bed can make intelligent judgments based on the user's body size and position on the bed, such as distinguishing the different weights and pressure patterns of adults and infants, thereby providing a solid foundation for subsequent safety protection measures.

[0064] Step 202: obtaining first image information of a target user on the electric bed through the image acquisition device;

[0065] Exemplarily, the image acquisition device includes a high-definition camera, an infrared camera, or a 3D depth perception camera.

[0066] Illustratively, a high-definition camera is installed at an appropriate position above or near the electric bed to capture clear visual images, and is equipped with a night vision function to ensure high-quality images even in low-light conditions;

[0067] For example, infrared cameras can work in complete darkness, making them ideal for nighttime surveillance scenarios;

[0068] For example, a 3D depth perception camera can not only provide two-dimensional images, but also capture three-dimensional spatial information, which helps to more accurately identify the user's body contour and movement status.

[0069] Exemplarily, the image acquisition device can continuously photograph the target user on the bed within a preset time period, or it can trigger the shooting when a change in pressure distribution is detected, so as to reduce the amount of unnecessary data. The obtained image information is then sent to the electric bed, and the image content is analyzed by an image recognition algorithm to determine whether there is a user and his or her specific characteristics, such as body shape, posture, etc.

[0070] For example, considering the privacy protection of users, strict measures can be taken when designing the image acquisition system, such as activating the camera only under certain conditions (such as detecting abnormal pressure distribution and activity) and ensuring the security of image data to prevent unauthorized third-party access.

[0071] Step 203: when the target user first image information indicates that it includes a first target user and a second target user, and the first target user is obtained as an infant according to the user first image information and pressure distribution information;

[0072] Exemplarily, the electric bed can further combine the information obtained from the image acquisition device with the pressure distribution data provided by the sensor, compare the body contour in the image and the gravity point in the pressure distribution map, and improve the accuracy of identifying the user's position information, especially the accuracy of distinguishing whether the target user is an infant or a young child.

[0073] Exemplarily, when two users are detected in the image information, it is determined that the first target user is an infant, and then preset detection and safety protection are implemented on the infant target user.

[0074] Exemplarily, in order to accurately identify an infant user, the step of obtaining that the first target user is an infant according to the user image information and the pressure distribution information includes the following steps: Figure 3 As shown:

[0075] Step 301: Obtain a first judgment result according to the head-to-body ratio information and height information of the target user in the first image information of the user;

[0076] In order to obtain the first judgment result from the image information and determine whether the detected user information is an infant, the user's contour information can be extracted from the image obtained by the image acquisition device using an edge detection algorithm (such as the Canny operator) and morphological operations (such as dilation and erosion).

[0077] The core of edge detection is to identify the locations where the grayscale value (brightness) in the image changes sharply. These locations usually correspond to the boundaries of objects, because the junctions between different objects are often accompanied by obvious brightness differences. To achieve this, the edge detection algorithm calculates the gradient (i.e., the rate of change of brightness) of each pixel in the image and determines which pixels belong to the edge based on a preset threshold.

[0078] For example, the Canny operator is one of the most commonly used algorithms in the field of edge detection. The algorithm combines multiple steps such as Gaussian filtering denoising, gradient calculation, non-maximum suppression, and double threshold connection, and can effectively detect continuous and clear edges.

[0079] In order to further optimize the results of edge detection, morphological operations are often combined. These operations are mainly used to improve or enhance the structural information in the image. For example, dilation can fill small holes inside the object or connect adjacent objects by increasing the size of the foreground object, making the outline more complete. In contrast, erosion reduces the size of the foreground object, removes small protrusions on the edge of the object, or separates closely connected objects, which helps to clean up noise and unnecessary details.

[0080] For infants and young children, their bodies are smaller and their proportions are different from those of adults. This feature can be preliminarily judged by comparing the proportions of different parts.

[0081] Exemplarily, the user's body contour is obtained through the above edge detection algorithm and compared with the pre-set body shape template. Exemplarily, infants and young children have relatively short and sturdy limbs. Their arms and legs are relatively short, and they look rounder due to more fat.

[0082] For example, infants have relatively large heads and short bodies, so the system will calculate the ratio of head length to total body length (head-to-body ratio). If this ratio is significantly higher than the standard value for adults, it can be preliminarily determined to be an infant. For example, the head-to-body ratio of a newborn is about 1:4, and as the age increases, this ratio gradually approaches the 1:7-1:8 of adults.

[0083] For example, an important indicator to further confirm the identity of infants is the ratio of head width to shoulder width. Infants have relatively large heads and narrow shoulders, and this feature can be verified by accurately measuring the width of these two parts and calculating their ratio. If the ratio is significantly greater than the average value of adults, it is more supportive of the judgment of infants.

[0084] To increase the accuracy of the judgment, the ratio of the length of the limbs to the total length of the body is also measured based on the image information. Infants and young children have relatively short limbs and short bodies, so this ratio is usually lower. By comparing the measurement results with the preset standard range for infants and young children, it can be further confirmed whether it is an infant or young child.

[0085] Exemplarily, the image information also includes facial information of the target user, and infants have round faces and plump cheeks. Exemplarily, facial recognition can be used to analyze the facial contour of the first target user. If the contour curve is relatively smooth and there are no obvious protruding parts such as cheekbones and mandibles, it can be preliminarily determined that the first target user is an infant.

[0086] For example, the size and position of the target user's eyes can also be analyzed through the image. If the eyes occupy a large proportion of the face and are located lower, it can also be determined that the user is an infant. These features have high specificity in infants and can be used as an additional verification method.

[0087] Through the above multi-dimensional analysis, the electric bed can obtain the first judgment result based on the image information, that is, preliminarily determine whether the target user is an infant or a young child. This process does not only rely on a single feature, but also comprehensively considers multiple body proportions and features to ensure the accuracy and reliability of the judgment.

[0088] Step 302: Obtain a second judgment result according to the pressure distribution and weight of the first target user and the second target user in the pressure distribution information;

[0089] After obtaining the first judgment result, the electric bed can further combine the pressure distribution information provided by the first sensor to improve the accuracy of the judgment. For example, the pressure distribution of each position on the bed and its corresponding weight are analyzed to obtain the second judgment result.

[0090] Exemplarily, the second judgment result is obtained according to the pressure distribution and weight of the first target user and the second target user in the pressure distribution information, such as Figure 4 As shown, including:

[0091] Step 401: Obtaining the uniformity of the pressure distribution of the first target user and the second target user, and the weight of the first target user and the second target user, respectively, according to the pressure distribution information;

[0092] Exemplarily, in step 401, a "pressure map" is constructed based on the pressure distribution information to show the weight distribution of the user on the bed. For each target user (i.e., the first target user and the second target user), the electric bed can optionally calculate the uniformity of pressure distribution in various parts of the body by analyzing the standard deviation or variance of the pressure value: the smaller the standard deviation or variance, the more uniform the pressure distribution. Infants and young children usually show a more uniform pressure distribution due to their small size and incomplete muscle development, while the pressure distribution of adults may be more dispersed, especially between the limbs and the trunk.

[0093] Step 402: When the pressure distribution uniformity of the first target user is within a preset infant uniformity range, and the weight of the first target user is within a preset infant weight range, a second judgment result is obtained.

[0094] The second judgment result indicates that the first target user is an infant.

[0095] Exemplarily, the uniformity of pressure distribution on various parts of the first target user's body is evaluated by calculating the standard deviation or variance of the pressure values. For infants and young children, their bodies are small and their muscles are not fully developed, so they usually show a more uniform pressure distribution. If the uniformity of pressure distribution of the first target user meets the pre-set infant standard (for example, the standard deviation or variance is within a lower range), it is preliminarily indicated that the user may be an infant or young child.

[0096] For example, the electric bed can calculate the total weight of each target user by integrating the data of multiple first sensors to obtain a relatively accurate weight estimate. This step is crucial for distinguishing adults from infants and young children, because infants and young children usually weigh much less than adults. By combining the uniformity of pressure distribution and weight information, the system can more accurately identify whether the user is an infant or young child, providing a reliable basis for subsequent safety protection measures.

[0097] Exemplarily, an estimated weight value is obtained through data from the first sensor, and the estimated weight value is compared with a preset weight threshold value. If the estimated weight value is less than the preset weight threshold value, then the first target user is an infant.

[0098] Exemplarily, when the above two conditions are met at the same time - that is, the pressure distribution uniformity of the first target user is within the preset infant uniformity range, and his weight is within the preset infant weight range - the electric bed obtains the final second judgment result, confirming that the first target user is an infant.

[0099] Step 303: When both the first judgment result and the second judgment result indicate that the first target user is an infant, determine that the first target user is an infant.

[0100] Exemplarily, a first judgment result of user information is obtained through image information, and a second judgment result of user information is obtained through pressure distribution information. To enhance accuracy, when both the first judgment result and the second judgment result indicate that the first target user is an infant, it is determined that the first target user is an infant.

[0101] Exemplarily, the above method can be used to determine that the first user is an infant, and a similar method can be used to determine whether the second target user is an adult or an infant. In the embodiment of the present application, the first target user is not an infant.

[0102] When the target user first image information indicates that it includes a first target user and a second target user, and when it is obtained based on the user first image information and pressure distribution information that the first target user is an infant, step 204 is executed.

[0103] Step 204: Detecting location information of the first target user and the second target user;

[0104] In order to prevent the first target user (infant) from being pressed by the second user after falling asleep, thus causing safety problems, it is necessary to obtain the location information of the first target user and the second user respectively to calculate the distance between the two users.

[0105] For example, considering that users are not point-like objects, the minimum separation distance can also be calculated based on the outermost boundary of their body contours. It is necessary to find the shortest path from the outermost boundary point of one user to the outermost boundary point of another user to obtain a more accurate safety distance.

[0106] Step 205: When the distance between the first target user and the second target user is less than a first preset distance value, output a prompt message.

[0107] For example, a first preset distance value is pre-set, and the first preset distance value can be determined based on the safety needs of infants and the pressure risks that adults may cause to them. For example, the value may be set to 30 cm, and the specific value can be adjusted according to actual conditions.

[0108] Exemplarily, when the above conditions are met, the system will output a prompt message to remind adults to maintain a safe distance and avoid causing unnecessary pressure or other dangers to infants and young children.

[0109] For example, the prompt information can be in various forms, such as sound alarm, vibration prompt or sending a notification to the guardian of the infant through a mobile phone application. This can not only immediately remind the adult in the bed, but also let the absent parents know the situation in time. In the embodiment of the present application, the method and content of the prompt information are not limited.

[0110] In addition to outputting prompt information, the system can also take other preventive measures, such as slightly adjusting the sleeping posture of infants and young children to provide additional safety cushioning.

[0111] Exemplarily, a plurality of airbags are installed on the electric bed body, and the method further comprises:

[0112] When the distance between the first target user and the second target user is less than a first preset distance value, the airbag under the body of the second target user is controlled to inflate so that the second target user changes his sleeping posture, so that the distance between the first target user and the second target user is greater than the first preset distance value.

[0113] For example, when the distance between the first target user and the second target user is less than a first preset distance value, the electric bed controls the airbags under the body of the second target user to inflate. These airbags are distributed at key positions of the mattress, such as the waist, legs or shoulders, and can accurately adjust the user's sleeping posture.

[0114] Exemplarily, the process of inflating the airbag is gradual to avoid sudden movements causing unnecessary shock or discomfort. After inflation is completed, the airbag will slightly lift or change the body part of the second target user, prompting them to naturally change their sleeping posture, thereby increasing the distance between them and the first target user.

[0115] Exemplarily, the electric bed continuously monitors the distance between the two users to ensure that the adjusted distance is greater than a preset safety threshold. If necessary, the state of the airbag can be fine-tuned until the ideal safety distance is reached.

[0116] This dynamic adjustment mechanism can not only effectively prevent adults from accidentally approaching infants and young children, but also provide continuous safety protection without disturbing the user's rest.

[0117] In order to further improve the safety of the smart electric bed system, especially to prevent infants and young children from getting close to the bed and causing the risk of falling, the system adds additional safety protection measures after detecting the location information of the first target user (such as an infant) and the second target user (such as an adult).

[0118] Exemplarily, after detecting the location information of the first target user and the second target user, the method further includes:

[0119] When the position information of the first target user indicates that the first target user is less than a second preset distance value away from the edge of the electric bed, the airbag under the body of the first target user close to the edge of the electric bed is controlled to inflate so that the body of the first target user changes its posture toward the direction away from the edge of the electric bed.

[0120] Exemplarily, the second preset distance value is set based on the safety needs of infants and young children, and is usually about 20 centimeters. The specific value can be adjusted according to actual conditions to ensure that infants and young children do not get too close to the bed.

[0121] Exemplarily, the electric bed continuously detects the position information of the first target user (such as an infant). When it is detected that the distance between the first target user and the edge of the electric bed is less than a preset second preset distance value, the system initiates the protective measures.

[0122] Exemplarily, the airbag adjustment state corresponding to the position information of the first target user being within a dangerous range less than a second preset distance value from the edge of the electric bed is pre-set. When the above conditions are met, the airbag is inflated so that the second user moves in a direction greater than the second preset distance value.

[0123] Exemplarily, when the first user is within the danger range close to the left side of the bed, the airbag on the remaining side of the user close to the left side of the bed is adjusted so that the user naturally rolls away from the left side of the bed and maintains a safe distance from the left side of the bed.

[0124] Exemplarily, after fine-tuning the posture of the first target user, in order to prevent the user from rolling into the danger range again, exemplary, the guardrails at the window can be raised to further enhance the safety of infants and young children.

[0125] Exemplarily, the method further includes:

[0126] When the position information of the first target user indicates that the first target user is less than a second preset distance from the edge of the electric bed, and controlling the inflation of the airbag fails to successfully change the posture of the first target user's body away from the edge of the electric bed, an alarm prompt message is output.

[0127] For example, the alarm prompt information can be issued in a variety of ways, such as sound alarm, light alarm or sending a notification to the guardian's mobile device, to ensure that the guardian can receive a warning in time even at night or when the guardian is not in the room, so as to quickly move the first target user to a safe range, which is a range greater than the first distance threshold and the first target user is greater than a second preset distance value from the edge of the electric bed.

[0128] Once it is confirmed that the distance between the first target user and the bedside has returned to a safe range, the electric bed controls the airbag to gradually release air to restore it to normal, ensuring that the user's sleep quality will not be affected.

[0129] In some possible embodiments, in order to further improve the intelligence and safety of the intelligent electric bed system, the system introduces at least one second sensor to obtain the user's physiological characteristics information before detecting the location information of the first target user and the second target user, so as to determine whether the user is in a sleeping state and then perform distance judgment and a series of safety protection measures. When it is determined that the user is asleep, the operation of the embodiment of the present application can improve the user experience and minimize interference. Frequent activation of safety protection measures when the user is awake may cause unnecessary disturbances and affect the user's comfort; by confirming that the user is asleep before activating related functions, a quieter and more comfortable sleeping environment can be provided.

[0130] Finally, this approach enhances the reliability and accuracy of the system. By combining physiological characteristic information (such as heart rate, breathing rate, body temperature, etc.) and location information, the system can more accurately determine the user's actual state and avoid the errors that may be caused by a single data source. For example, when the user is resting but not yet asleep, his or her location information may be close to the dangerous range, but there is no need to immediately initiate safety protection measures.

[0131] Exemplarily, the electric bed further comprises at least one second sensor, before detecting the position information of the first target user and the second target user, as Figure 5 As shown, the method also includes:

[0132] Step 501: obtaining first physiological characteristic information of the target user through a second sensor;

[0133] Exemplarily, the second sensor type includes a heart rate sensor, a breathing sensor, a body temperature sensor, or a motion sensor.

[0134] Among them, the heart rate sensor can monitor the user's heart rate in real time through contact or non-contact methods, providing key data about heart activity; the breathing sensor uses a pressure sensor or infrared sensor to measure the user's breathing rate and depth to help evaluate whether the breathing pattern is consistent with the sleep state; the body temperature sensor continuously monitors the user's body temperature changes, because the body temperature will drop slightly when entering sleep, which helps to further confirm the user's sleep status; and the motion sensor (such as an accelerometer or gyroscope) is used to detect the user's tiny movements to assist in determining whether the user is in a static sleep state. By combining the data of these different types of sensors, the system can more accurately determine whether the user is in a sleeping state, and accordingly initiate corresponding safety protection measures to ensure the user's safety and comfort.

[0135] Exemplarily, the physiological characteristic information includes at least heart rate, breathing rate, body temperature and movement frequency. By comprehensively analyzing these physiological characteristic information, the system can accurately determine whether the user is in a sleeping state, and accordingly initiate corresponding safety protection measures to ensure the safety and comfort of the user.

[0136] Step 502: Determine whether the user is in a sleeping state based on the first physiological characteristic information. When any of the target users is in a sleeping state, proceed to the step of detecting the location information of the first target user and the second target user.

[0137] The first physiological characteristic information obtained in step 502 is compared with the preset physiological characteristic information to determine whether the user is in a sleeping state.

[0138] For example, in order to accurately determine whether the user is in a sleeping state, the first physiological characteristic information is used for comprehensive analysis. The user's key health indicators such as blood oxygen saturation, heart rate, and blood pressure are continuously monitored, and these real-time data are compared with the normal ranges pre-defined according to the user's individual conditions and medical references.

[0139] Exemplarily, the resting heart rate of an adult is usually between 60 and 100 beats per minute, while that of an infant is higher, about 100 to 160 beats per minute; these values ​​decrease during sleep. At the same time, the electric bed also monitors the breathing rate (12 to 20 times per minute for adults and 20 to 60 times per minute for infants), changes in body temperature (slightly decreased during sleep), and movement frequency (less frequent and regular during sleep). When all of these physiological characteristic information of the first or second target user respectively meets the characteristic range of the sleep state of the first or second target user, it is confirmed that the user has entered a sleep state. Through this comprehensive analysis of multimodal physiological characteristic information, the electric bed can accurately determine whether the user is in a sleep state, thereby ensuring that subsequent safety protection measures are only activated when they are really needed, avoiding unnecessary misoperation and providing more intelligent and humane services.

[0140] Exemplarily, by detecting the physiological characteristic information of the user, when the target user is not asleep, the process may return to the step of detecting the physiological characteristic, and not proceed to the step of detecting the position information until the target user falls asleep.

[0141] In the case where the user falls asleep, the location information of the target user may be further obtained, and when the distance between the first target user and the second target user is less than a first preset distance value, a prompt message is output.

[0142] Exemplarily, the prompt information is used to prompt the first target user that the first target user is in danger. In the embodiment of the present application, there is no limitation on the prompt information method and content.

[0143] In some possible embodiments, for example, in order to further improve the intelligence and safety of the electric bed, not only is at least one second sensor introduced to obtain the user's physiological characteristic information before detecting the location information of the first target user and the second target user, but also special attention is paid to key health indicators such as blood oxygen saturation value, heart rate value and blood pressure value. These physiological characteristic information is not only used to determine whether the user is in a sleeping state, but also plays an important role in monitoring the user's health status. If the physiological characteristic information is abnormal, the user can be awakened by a strong vibration reminder.

[0144] Exemplarily, the physiological characteristic information includes a blood oxygen saturation value, a heart rate value, and a blood pressure value, and the method further includes:

[0145] When any value of the first physiological characteristic information is lower than the corresponding preset value, an alarm message is output and the vibrator is controlled to vibrate, and the vibration amplitude is greater than the preset vibration amplitude.

[0146] Exemplarily, the preset value is set according to the normal range defined by the user's individual condition and medical reference, aiming to ensure the health and safety of the user. When any value in the first physiological characteristic information is lower than the corresponding preset safety threshold, the system will output an alarm message and control the vibrator to vibrate in a manner greater than the preset vibration amplitude, ensuring timely attention and taking necessary medical measures.

[0147] For example, in addition to outputting the prompt information, the vibrator can also be controlled to vibrate until the second user wakes up and takes corresponding safety measures.

[0148] Exemplarily, the electric bed body is provided with a plurality of vibrators, such as Figure 6 As shown, the method also includes:

[0149] Step 601: When the distance between the first target user and the second target user is less than a first preset distance value, controlling the target vibrator to vibrate;

[0150] The target vibrator is used to indicate the vibrator at the position of the second target user. In order not to affect the sleep of the first target user, the vibrator at the position of the first target user does not respond.

[0151] Step 602: acquiring second image information of a target user through the image acquisition device after the target vibrator vibrates and acquiring second physiological characteristic information of the second target user through the second sensor;

[0152] Exemplarily, obtaining the second image information of the target user by means of the image acquisition device has been discussed in detail above and will not be repeated here.

[0153] The second physiological characteristic information of the second target user obtained by the second sensor is used to detect whether the physiological characteristic information of the second target user is within the preset range of physiological characteristic information in the sleeping state. If so, then combined with the image information, it can be concluded that the second target user is in the sleeping state. If not within the preset range of physiological characteristic information in the sleeping state, then combined with the image information, it can be concluded that the second target user is in the non-sleeping state.

[0154] Step 603: When it is determined that the second target user is in a non-sleeping state according to the second image information and the second physiological characteristic information, the target vibrator stops vibrating.

[0155] Exemplarily, the vibration reminder continues until the second target user wakes up and the vibration stops, so that the second target user can take corresponding measures to ensure that the first target user does not sleep in a dangerous situation, thereby improving the safety of the first target user during sleep.

[0156] Exemplarily, the electric bed further includes a lighting device, and the method further includes:

[0157] When the second physiological characteristic information determines that the second target user is in a non-sleeping state, the preset lighting is turned on, and the lighting device gradually increases the brightness to the target preset brightness through the preset light brightness level.

[0158] By gradually increasing the brightness of the light, the user can be provided with enough illumination to ensure that they can move safely, without the sudden bright light causing eye irritation or discomfort.

[0159] Exemplarily, the vibration reminds the second target user to wake up and turn on the lighting with gentle light, further improving the safety of the user during sleep.

[0160] It should be understood that although Figure 2-6 The steps in the flowchart are shown in sequence as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified in this document, there is no strict order restriction for the execution of these steps, and these steps can be executed in other orders. Moreover, Figure 2-6At least part of the steps may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution order of these sub-steps or stages is not necessarily sequential, but can be executed in turn or alternately with other steps or at least part of the sub-steps or stages of other steps.

[0161] In some embodiments, Figure 7 As shown, a protective device is provided, which is applied to an electric bed. The electric bed includes a plurality of first sensors and an image acquisition device, including: an acquisition module 701, a detection module 702, and an output module 703, wherein:

[0162] An acquisition module 701 is used to obtain first image information of a target user on the electric bed through the image acquisition device;

[0163] A detection module 702 is configured to detect pressure distribution information of the electric bed through a plurality of the first sensors; when the first image information of the target user indicates that the first target user and the second target user are included, and when the first target user is obtained as an infant according to the first image information of the user and the pressure distribution information, detect position information of the first target user and the second target user;

[0164] The output module 703 is configured to output prompt information when the distance between the first target user and the second target user is less than a first preset distance value.

[0165] For further definition of the protection device, please refer to the definition of the protection method above, which will not be repeated here. Each module in the above device can be implemented in whole or in part by software, hardware and a combination thereof. Each of the above modules can be embedded in or independent of the processor in the terminal device in the form of hardware, or can be stored in the memory of the terminal device in the form of software, so that the processor can call and execute the operations corresponding to each of the above modules.

[0166] Another embodiment provides a computer-readable storage medium, which is used to store a computer program. This computer program includes instructions for implementing the method described in the embodiment of the present application. By installing this computer program on a computer, the computer can execute the corresponding method.

[0167] Another embodiment proposes an electric bed, which includes multiple first sensors and an image acquisition device, including: a processor; a memory for storing executable instructions of the processor; wherein the processor is configured to execute the instructions to implement the protection method proposed in the embodiment of the present application.

[0168] For example, Figure 8It is a schematic block diagram of another protection device provided in an embodiment of the present application.

[0169] Figure 8 The device 800 shown is composed of four main parts: processor 801, memory 802, communication interface 803 and bus 804. Each part has its specific function and role, and these components and their functions in the protection method will be explained in detail below.

[0170] The processor 801 is responsible for executing instructions stored in the memory 802, and realizing functions including but not limited to detecting the pressure distribution information of the electric bed through multiple first sensors, and obtaining the image information of the target user on the electric bed through the image acquisition device; at the same time, the processor 801 also processes the user image information and pressure distribution information, determines whether the user is an infant, and monitors the distance between the first target user (infant) and the second target user (adult), and triggers a prompt message when the distance between the two is less than a preset value.

[0171] The memory 802 is not only used to store various instructions required for the processor 801 to execute, but also to save data obtained from the first sensor and the second sensor, such as pressure distribution information, physiological characteristic information, etc., to facilitate subsequent analysis and decision-making.

[0172] The communication interface 803 allows the device to exchange data with other external devices or systems, such as receiving real-time image information from the image acquisition device and sending warning notifications to guardians or emergency contacts. In addition, when the first target user approaches the edge of the electric bed, the processor 801 can also control the airbag on the electric bed to inflate or start the vibrator to change the user's sleeping posture, ensure a safe distance, and avoid potential risks. These components are connected through the bus 804 to ensure that data and instructions can be efficiently transmitted between the components.

[0173] In summary, Figure 8 The protective device 800 shown achieves intelligent safety monitoring and protection for users on the electric bed through the coordinated work of its internal components, significantly improving the safety of children's nighttime rest and the peace of mind of parents.

[0174] It should be understood that in the embodiments of the present application, the processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

[0175] In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in a processor or an instruction in the form of software. The steps of the method disclosed in conjunction with the embodiment of the present application can be directly embodied as a hardware processor for execution, or a combination of hardware and software modules in a processor for execution. The software module can be located in a storage medium mature in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in a memory, and the processor executes the instructions in the memory, and completes the steps of the above method in conjunction with its hardware. To avoid repetition, it is not described in detail here.

[0176] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the embodiments of the present application.

[0177] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0178] In the several embodiments provided in the embodiments of the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0179] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0180] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0181] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program code.

[0182] The above is only a specific implementation of the embodiment of the present application, but the protection scope of the embodiment of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or replacements within the technical scope disclosed in the embodiment of the present application, which should be included in the protection scope of the embodiment of the present application. Therefore, the protection scope of the embodiment of the present application should be based on the protection scope of the claims.

Claims

1. A protection method, characterized in that: Applied to an electric bed, the electric bed includes a plurality of first sensors and an image acquisition device, and the method includes: Detecting pressure distribution information of the electric bed by using a plurality of the first sensors; Obtaining first image information of a target user on the electric bed through the image acquisition device; When the target user first image information indicates that the target user includes a first target user and a second target user, and the first target user is an infant according to the user first image information and pressure distribution information, detecting position information of the first target user and the second target user; When the distance between the first target user and the second target user is less than a first preset distance value, a prompt message is output.

2. The protection method according to claim 1, characterized in that: The electric bed further includes at least one second sensor. Before detecting the position information of the first target user and the second target user, the method further includes: obtaining first physiological characteristic information of the target user through a second sensor; It is determined whether the user is in a sleeping state by using the first physiological characteristic information. When any one of the target users is in a sleeping state, the step of detecting the location information of the first target user and the second target user is entered.

3. The protection method according to claim 1, characterized in that: The obtaining, according to the first image information and pressure distribution information of the user, that the first target user is an infant, comprises: Obtaining a first judgment result according to the head-to-body ratio information and the height information of the target user in the first image information of the user; Obtaining a second judgment result according to the pressure distribution and weight of the first target user and the second target user in the pressure distribution information; When the first judgment result and the second judgment result both indicate that the first target user is an infant, it is determined that the first target user is an infant.

4. The method according to claim 3, characterized in that The obtaining a second judgment result according to the pressure distribution and weight of the first target user and the second target user in the pressure distribution information includes: Obtaining respectively the uniformity of the pressure distribution of the first target user and the second target user, and the weight of the first target user and the second target user according to the pressure distribution information; When the pressure distribution uniformity of the first target user is within a preset infant uniformity range and the weight of the first target user is within a preset infant weight range, a second judgment result is obtained, indicating that the first target user is an infant.

5. The method according to claim 2, characterized in that: The electric bed is equipped with a plurality of air bags, and the method further comprises: When the distance between the first target user and the second target user is less than a first preset distance value, the airbag under the body of the second target user is controlled to inflate so that the second target user changes his sleeping posture, so that the distance between the first target user and the second target user is greater than the first preset distance value.

6. The method according to claim 2, characterized in that The electric bed is provided with a plurality of vibrators, and the method further comprises: When the distance between the first target user and the second target user is less than a first preset distance value, controlling the target vibrator to vibrate, the target vibrator being used to indicate a vibrator at a position of the second target user; After the target vibrator vibrates, second image information of the second target user is obtained through the image acquisition device and second physiological characteristic information of the second target user is obtained through the second sensor. When it is determined that the second target user is in a non-sleeping state based on the second image information and the second physiological characteristic information, the target vibrator stops vibrating.

7. The method according to claim 5, characterized in that After detecting the location information of the first target user and the second target user, the method further includes: When the position information of the first target user indicates that the first target user is less than a second preset distance value away from the edge of the electric bed, the airbag under the body of the first target user close to the edge of the electric bed is controlled to inflate so that the body of the first target user changes its posture away from the edge of the electric bed.

8. The method according to claim 6, characterized in that The physiological characteristic information includes a blood oxygen saturation value, a heart rate value, and a blood pressure value. The method further includes: When any value of the first physiological characteristic information is lower than the corresponding preset value, an alarm message is output and the vibrator is controlled to vibrate, and the vibration amplitude of the vibrator is greater than the preset vibration amplitude.

9. A protective device, characterized in that: Applied to an electric bed, the electric bed includes a plurality of first sensors and an image acquisition device, including: An acquisition module, used for acquiring first image information of a target user on the electric bed through the image acquisition device; a detection module, configured to detect pressure distribution information of the electric bed through a plurality of the first sensors; and when the first image information of the target user indicates that the first target user and the second target user are included, and when the first target user is obtained as an infant according to the first image information of the user and the pressure distribution information, detecting position information of the first target user and the second target user; The output module is configured to output prompt information when the distance between the first target user and the second target user is less than a first preset distance value.

10. An electric bed, characterized in that: The electric bed includes a plurality of first sensors and an image acquisition device, including: processor; a memory for storing instructions executable by the processor; The processor is configured to execute the instructions to implement the protection method according to any one of claims 1 to 8.

Images