Bed cabinet coordination storage folding accompanying bed and control method

Abstract

The invention relates to the technical field of medical auxiliary instruments, in particular to a bed-cabinet coordination storage folding accompanying bed and a control method. The bed body can be switched between a folded state and an unfolded state; the driving mechanism is arranged in the cabinet body and is used for driving the bed body to move; the environment sensing unit is used for collecting environment illumination and environment sound data; the bed body state sensing unit is used for collecting the load state of the bed body; the space sensing unit is used for collecting space information around the bed body; the controller is used for controlling the driving mechanism to work; compared with the defects that in the prior art, an accompanying bed needs to be manually unfolded and folded by a user, operation is tedious, and user requirements cannot be pre-judged, an intelligent sensing scheme based on environment illumination and sound data is adopted, the rest time is automatically judged by analyzing environment information, bed body deployment is actively completed, and the user experience is improved. The system has the advantages of being high in intelligent degree and capable of providing non-sensitive active services.

Description

Technical Field

[0001] This invention relates to the field of medical assistive device technology, and in particular to a bed-cabinet combination storage folding companion bed and its control method. Background Technology

[0002] In hospital wards, home-based elder care, and scenarios with limited living space, providing convenient and comfortable rest conditions for caregivers is crucial. Traditional solutions typically rely on separate beds for caregivers, such as simple folding beds or cots. These devices need to be manually unfolded for rest and laboriously folded away after use, requiring the search for storage space. This poses significant management challenges and inconveniences in already cramped indoor environments. How to efficiently and intelligently address the temporary rest needs of caregivers without disrupting normal passage and medical activities has become a key aspect of improving the medical care environment and the quality of home-based elder care.

[0003] Currently common companion beds have several obvious drawbacks. First, they are inefficient in space utilization. Whether unfolded or folded, they occupy valuable indoor space, easily obstructing passageways and affecting the work of medical staff or access in emergencies. Second, they lack automation. Unfolding and folding rely entirely on manual operation, which is cumbersome and time-consuming, providing a poor experience for tired caregivers or elderly people with limited physical strength. Third, they are functionally limited, typically only providing basic sleep functions and lacking intelligent sensing and adaptive capabilities to different usage scenarios, failing to proactively provide services based on environmental changes or user status. Fourth, safety considerations are inadequate. There is a risk of collision with surrounding people or objects during unfolding, and there is a lack of effective safety warning mechanisms.

[0004] This invention aims to fundamentally overcome the aforementioned shortcomings by providing a folding companion bed with integrated bed and cabinet storage. This solution places the bed within a custom-designed cabinet, integrating environmental sensing, pressure monitoring, and spatial scanning technologies. This allows the companion bed to intelligently identify rest opportunities, automatically unfold, and safely fold away after sensing the user's departure. Simultaneously, it features collision warning and path planning capabilities, ensuring safety and spatial efficiency during use, thus transforming from a passive tool into a proactive and intelligent companion. Summary of the Invention

[0005] To overcome the problems mentioned in the background art, the present invention proposes a bed-cabinet combination storage folding companion bed, comprising: Cabinet; The bed frame is movable within the cabinet and can be switched between a stowed state and an unfolded state. The drive mechanism, located inside the cabinet, is used to drive the bed's movement; An environmental sensing unit, mounted on the cabinet, is used to collect ambient light and ambient sound data. A bed status sensing unit is installed on the bed to collect the load status of the bed. A spatial sensing unit, installed on the cabinet, is used to collect spatial information around the bed. The controller is connected to the drive mechanism, the environmental sensing unit, the bed status sensing unit, and the space sensing unit to control the operation of the drive mechanism. The human-computer interaction unit is used to receive user commands and output status information.

[0006] A control method for a bed-cabinet combination storage folding companion bed includes: A11: Automatic unfolding control process. Based on the data collected by the environmental sensing unit, when the preset resting conditions are met, the automatic control drive mechanism executes the conversion of the bed from the storage state inside the cabinet to the unfolded state outside the cabinet. A12: Automatic storage control process, based on data collected by the bed status sensing unit, automatically controls the drive mechanism to switch the bed from the unfolded state to the stored state when the preset storage conditions are met; A13: The safe deployment control process, based on data collected by the spatial sensing unit, assesses risks in real time and adjusts deployment actions during the bed deployment process.

[0007] As a preferred embodiment, the automatic deployment control process specifically includes: S11: Environmental data monitoring, continuously acquiring environmental data collected by the environmental sensing unit, including ambient light intensity and ambient sound intensity; S12: Rest condition judgment: Compare environmental data with preset conditions to determine whether the rest conditions are met; S13: Continuous state confirmation. When the rest conditions are met, start timing and confirm that the simultaneously met state continues for a first time period. S14: Execute automatic unfolding. When the continuous state confirmation step is established, an unfolding control command is automatically generated, and the actuator is driven to change the bed from the storage state inside the cabinet to the unfolded state.

[0008] As a preferred option, the specific rest conditions for determining rest conditions are as follows: A21: First condition: Ambient light intensity is lower than the first preset threshold; A22: Second condition: The ambient sound intensity is lower than the second preset threshold.

[0009] Preferably, a user confirmation intervention step is included before the automatic unfolding control process is executed: S21: When the continuous status confirmation step is successful, a prompt message is first issued through the human-computer interaction unit; S22: Start a delay window. If no cancellation command is received from the user within the delay window, execute the automatic expansion control flow. S23: If a cancellation command is received within the delay window, the current automatic expansion process will be aborted.

[0010] The prompt information is either a visual prompt or an auditory prompt. The visual prompt is the flashing of an indicator light and the display of a specific color, while the auditory prompt is a prompt sound.

[0011] Preferably, the specific process of controlling the deployment of the bed during automatic deployment includes: S31: Control the drive mechanism to smoothly move the bed out of the cabinet; S32: After the bed is moved to the predetermined position, control the lifting mechanism to unfold the support structure and bed board of the bed; S33: Automatic deployment is completed after receiving a feedback signal indicating that the bed has been fully deployed and locked.

[0012] As a preferred option, the automatic storage control process specifically includes: S41: Pressure status monitoring, continuously acquiring pressure data collected by the bed status sensing unit; S42: Bed-off status judgment. When the pressure data changes from being higher than the preset pressure threshold to being continuously lower than the preset pressure threshold, it is determined that the user has left the bed. S43: Safety Delay. After determining that the user has left the bed, a delay timer of a preset duration is started, and pressure data continues to be monitored during the delay period. S44: Perform automatic folding. If the pressure data remains below the preset pressure threshold throughout the entire delay timer period, a folding control command will be automatically generated, and the actuator will be driven to change the bed from the unfolded state to the folded state inside the cabinet.

[0013] As a preferred option, a space safety check is also performed before automatic storage is initiated, specifically: The spatial sensing unit scans the area above the bed and the storage movement path to confirm that there are no obstructions. Once it is confirmed that there are no obstructions, automatic storage will be performed; When an obstruction is detected, the process is paused and a message indicating an obstacle is present is issued.

[0014] Specifically, the automatic storage process includes the following steps: First, control the lifting mechanism to fold the bed's support structure and bed board; Next, after receiving a feedback signal indicating that the bed has been fully folded, the control drive mechanism smoothly retracts the bed into the cabinet. Finally, after receiving a feedback signal indicating that the bed has fully returned to its original position and locked, the automatic folding process is completed.

[0015] As a preferred option, the safe deployment control process specifically includes: S51: Space monitoring, continuously acquiring real-time spatial data of the surrounding environment of the bed collected by the space sensing unit during the unfolding process of the bed; S52: Risk assessment, based on real-time spatial data, to determine in real time whether there are obstacles on the planned movement path of the bed and to assess the risk of collision with obstacles; S53: Dynamic control, dynamically adjusting the deployment action of the bed based on the results of the risk assessment steps, including: when a collision risk is identified, executing pause, avoidance and abort operations.

[0016] Preferably, pre-scanning and path planning are included before the safe deployment control process, specifically: Upon receiving the unfolding command and before the drive mechanism starts, the spatial perception unit is first controlled to perform a spatial scan of the preset area in front of the cabinet to obtain a static environment model. Based on the static environment model, the optimal deployment path and final deployment position of the bed are pre-calculated. The optimal deployment path must avoid the scanned static obstacles, and the final deployment position must ensure that it does not affect the unobstructed main channel. Based on the pre-scan results, determine whether the conditions for safe deployment are met; If the calculated optimal deployment path cannot meet the minimum safe deployment space requirements of the bed, the deployment action will be stopped and a prompt message will be generated to notify the user. If the calculated optimal deployment path can only satisfy the partial deployment of the bed, then a deployment path is planned to perform incomplete deployment, and a prompt message is generated to notify the user that the current deployment state is limited.

[0017] The beneficial effects of this invention are: 1. Compared with the existing technology where the companion bed requires the user to manually unfold and fold it, which has the disadvantages of being cumbersome to operate and unable to predict the user's needs, the present invention adopts an intelligent sensing scheme based on ambient light and sound data. By analyzing environmental information, it automatically determines the rest time and actively completes the bed deployment. It has the advantages of high intelligence and can provide non-intrusive proactive service. 2. Compared with the simple automatic storage function in the existing technology, which is prone to accidental triggering due to the user getting up temporarily, resulting in poor reliability and affecting user experience, the present invention adopts a multi-verification scheme that combines pressure monitoring and safety delay. By introducing a delayed confirmation mechanism after determining that the user has left the bed, it effectively distinguishes between temporary getting up and real leaving the bed, and has the advantages of strong anti-accidental triggering capability and accurate automated decision-making. 3. Compared with the existing technology where the accompanying bed lacks environmental perception ability when unfolded, and there are safety hazards such as collision with obstacles and obstruction of medical passage, the present invention adopts a spatial perception scheme that combines pre-scanning and real-time monitoring. By planning the path before unfolding and dynamically adjusting it during the process, the risk of collision is actively avoided, which has the advantages of comprehensive safety protection and strong spatial adaptability. 4. Compared with the existing technology where the companion bed has a single function and only solves the need for rest but lacks overall scene adaptability, the present invention adopts a multi-sensor fusion and integrated solution, which integrates environmental perception, status judgment and space management functions into one, realizing the upgrade from a single piece of furniture to an intelligent companion node, with the advantages of high functional integration and good scene adaptability. 5. Compared with existing technologies where mechanical motion lacks closed-loop control and there is a risk of incomplete deployment or motion interference, this invention adopts a control scheme of step-by-step triggering and state feedback linkage. By decomposing complex actions into standardized steps and establishing an interlocking mechanism between steps, it ensures that the completion of each action is a prerequisite for the next step, which has the advantages of accurate and reliable operation process and significantly improved overall safety performance. Attached Figure Description

[0018] Figure 1 The diagram shown illustrates the principle and structure of the bed-cabinet combination storage folding companion bed of the present invention. Figure 2 The diagram shown is a schematic representation of the safe deployment control process in the control method of the bed-cabinet positioning, storage, and folding companion bed of the present invention. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Please see Figure 1 This invention provides an embodiment: a bed-cabinet combination storage folding companion bed, comprising: Cabinet; The bed frame is movable within the cabinet and can be switched between a stowed state and an unfolded state. The drive mechanism, located inside the cabinet, is used to drive the bed's movement; An environmental sensing unit, mounted on the cabinet, is used to collect ambient light and ambient sound data. A bed status sensing unit is installed on the bed to collect the load status of the bed. A spatial sensing unit, installed on the cabinet, is used to collect spatial information around the bed. The controller is connected to the drive mechanism, the environmental sensing unit, the bed status sensing unit, and the space sensing unit to control the operation of the drive mechanism. The human-computer interaction unit is used to receive user commands and output status information.

[0021] As described above, this invention integrates an environmental sensing unit, a bed status sensing unit, a spatial sensing unit, a controller, and a human-computer interaction unit into one unit. This companion bed can intelligently determine rest times by analyzing ambient light and sound data, and automatically trigger unfolding and folding operations based on the bed's pressure sensor status. Simultaneously, it utilizes spatial sensing technology to monitor the surrounding environment in real time, dynamically avoiding obstacles during unfolding to ensure safety and space efficiency. This represents a leap from passively responding to commands to proactively sensing services, significantly improving space utilization, ease of operation, and safety. It is particularly suitable for scenarios with high requirements for space and intelligent management, such as hospitals, nursing homes, and homes, providing users with an efficient, safe, and user-friendly companion rest solution.

[0022] like Figure 2 As shown, a control method for a bed-cabinet combination storage folding companion bed includes: A11: Automatic unfolding control process. Based on the data collected by the environmental sensing unit, when the preset resting conditions are met, the automatic control drive mechanism executes the conversion of the bed from the storage state inside the cabinet to the unfolded state outside the cabinet. A12: Automatic storage control process, based on data collected by the bed status sensing unit, automatically controls the drive mechanism to switch the bed from the unfolded state to the stored state when the preset storage conditions are met; A13: The safe deployment control process, based on data collected by the spatial sensing unit, assesses risks in real time and adjusts deployment actions during the bed deployment process.

[0023] As described above, this invention achieves autonomous management and safe operation of the companion bed through three collaborative automated processes. First, through an automatic deployment control process, it intelligently identifies rest opportunities based on ambient light and sound data and automatically prepares the bed. Second, through an automatic folding control process, it determines that the user has left the bed based on the bed's pressure status and automatically folds it up while ensuring safety. Finally, through a safe deployment control process, it utilizes spatial perception technology to monitor the surrounding environment in real time during bed deployment, dynamically avoiding obstacles to ensure the safety of people and belongings. This control method, integrating environmental perception, status judgment, and proactive safety protection, significantly improves the intelligence level of the equipment and the user experience, realizing a shift from "humans adapting to machines" to "machines proactively adapting to humans." While effectively freeing up manpower, it greatly enhances the safety, convenience, and reliability of use in complex environments (such as hospital wards).

[0024] As a preferred embodiment, the automatic deployment control process specifically includes: S11: Environmental data monitoring, continuously acquiring environmental data collected by the environmental sensing unit, including ambient light intensity and ambient sound intensity; S12: Rest condition judgment: Compare environmental data with preset conditions to determine whether the rest conditions are met; S13: Continuous state confirmation. When the rest conditions are met, start timing and confirm that the simultaneously met state continues for a first time period. S14: Execute automatic unfolding. When the continuous state confirmation step is established, an unfolding control command is automatically generated, and the actuator is driven to change the bed from the storage state inside the cabinet to the unfolded state.

[0025] As described above, the automatic deployment control process in this invention specifically includes four collaborative steps: environmental data monitoring, rest condition judgment, continuous status confirmation, and automatic deployment execution. The system continuously monitors ambient light and sound intensity and intelligently compares them with preset thresholds to determine whether rest conditions are met. To ensure the accuracy of triggering timing, a continuous status confirmation mechanism is introduced, requiring the condition to remain stable for a certain period, effectively avoiding false triggers caused by temporary environmental fluctuations. Finally, after confirming that the conditions are met, the system automatically drives the mechanism to complete the bed deployment. This method significantly improves the intelligence and user-friendliness of the equipment, realizing a shift from "passive response" to "proactive service." It seamlessly creates rest conditions for users while ensuring operational reliability and accuracy through rigorous judgment logic, greatly optimizing the user experience.

[0026] As a preferred option, the specific rest conditions for determining rest conditions are as follows: A21: First condition: Ambient light intensity is lower than the first preset threshold; A22: Second condition: The ambient sound intensity is lower than the second preset threshold.

[0027] As described above, this invention specifies and coordinates the criteria for judging rest conditions, defining them as two core conditions: ambient light intensity below a first preset threshold and ambient sound intensity below a second preset threshold. This dual-factor joint judgment solution effectively simulates human perception of a typical resting environment of "quiet and dim" by combining visual (light) and auditory (sound) environmental information for comprehensive logical judgment. Its beneficial effects include significantly improving the accuracy and reliability of intelligent judgment, avoiding false triggering caused by accidental changes in a single environmental factor (such as brief light outages or momentary silence), and ensuring that the automatic deployment function only activates in truly suitable resting environments, thereby enhancing the system's intelligence and user experience comfort.

[0028] Preferably, a user confirmation intervention step is included before the automatic unfolding control process is executed: S21: When the continuous status confirmation step is successful, a prompt message is first issued through the human-computer interaction unit; S22: Start a delay window. If no cancellation command is received from the user within the delay window, execute the automatic expansion control flow. S23: If a cancellation command is received within the delay window, the current automatic expansion process will be aborted.

[0029] The prompt information is either a visual prompt or an auditory prompt. The visual prompt is the flashing of an indicator light and the display of a specific color, while the auditory prompt is a prompt sound.

[0030] As described above, this invention incorporates a user confirmation intervention step into the automatic deployment control process, forming a collaborative decision-making mechanism of "system judgment - user confirmation." This mechanism requires that after environmental conditions continuously meet the rest requirements, deployment is not immediately executed. Instead, the user is first informed through a combination of audio and visual prompts, and a delay window is initiated to await user feedback. Automatic deployment is only triggered when the user does not issue a cancellation command within the window period. This design optimizes fully automatic control into a semi-automatic mode that respects the user's subjective will and has fault tolerance. Its beneficial effects include significantly improving system reliability and user-friendliness. It retains the convenience of intelligent sensing while effectively preventing erroneous actions caused by environmental misjudgments or user changes of mind, giving the user the final decision-making power, and making intelligent services more considerate and reliable.

[0031] Preferably, the specific process of controlling the deployment of the bed during automatic deployment includes: S31: Control the drive mechanism to smoothly move the bed out of the cabinet; S32: After the bed is moved to the predetermined position, control the lifting mechanism to unfold the support structure and bed board of the bed; S33: Automatic deployment is completed after receiving a feedback signal indicating that the bed has been fully deployed and locked.

[0032] As described above, this invention specifies the automatic deployment process as a three-step sequential control strategy: first, the bed is smoothly moved out of the cabinet; then, upon reaching the predetermined position, the lifting mechanism is activated to deploy the support structure; and finally, the entire process is completed upon receiving a feedback signal confirming full deployment and locking. This phased, condition-triggered sequential control method has the technical advantage of breaking down complex deployment actions into independent standardized steps and forming a closed-loop control through position and status feedback, ensuring precise connection and interlocking between each action. The beneficial effects are particularly significant; it not only ensures a smooth and stable deployment process and avoids motion interference, but more importantly, through the final status confirmation mechanism, it fundamentally eliminates safety hazards caused by incomplete deployment, greatly improving the reliability and safety of equipment operation.

[0033] As a preferred option, the automatic storage control process specifically includes: S41: Pressure status monitoring, continuously acquiring pressure data collected by the bed status sensing unit; S42: Bed-off status judgment. When the pressure data changes from being higher than the preset pressure threshold to being continuously lower than the preset pressure threshold, it is determined that the user has left the bed. S43: Safety Delay. After determining that the user has left the bed, a delay timer of a preset duration is started, and pressure data continues to be monitored during the delay period. S44: Perform automatic folding. If the pressure data remains below the preset pressure threshold throughout the entire delay timer period, a folding control command will be automatically generated, and the actuator will be driven to change the bed from the unfolded state to the folded state inside the cabinet.

[0034] As described above, this invention details the automatic folding control process, which achieves intelligent folding through four steps: pressure status monitoring, bed exit judgment, safety delay, and final execution. The scheme first continuously monitors bed pressure data. When the pressure value is consistently below a threshold, it is determined that the user has left the bed. Then, a crucial safety delay timer is activated, continuously monitoring pressure changes during this period. If the user does not return (pressure has not recovered), automatic folding is finally triggered. This design, through a multi-verification mechanism of pressure disappearance judgment → delay confirmation → folding execution, effectively avoids accidental folding caused by the user temporarily getting up (such as going to the bathroom at night). While ensuring the convenience of automation, it greatly improves the system's fault tolerance and the reliability of the user experience.

[0035] As a preferred option, a space safety check is also performed before automatic storage is initiated, specifically: The spatial sensing unit scans the area above the bed and the storage movement path to confirm that there are no obstructions. Once it is confirmed that there are no obstructions, automatic storage will be performed; When an obstruction is detected, the process is paused and a message indicating an obstacle is present is issued.

[0036] Specifically, the automatic storage process includes the following steps: First, control the lifting mechanism to fold the bed's support structure and bed board; Next, after receiving a feedback signal indicating that the bed has been fully folded, the control drive mechanism smoothly retracts the bed into the cabinet. Finally, after receiving a feedback signal indicating that the bed has fully returned to its original position and locked, the automatic folding process is completed.

[0037] As described above, this invention adds a crucial space safety confirmation step to the automatic storage process and employs a rigorous sequential control strategy during execution. After determining that storage is possible, the system first scans the area above the bed and the storage path using a spatial sensing unit. Storage only begins after confirming there are no obstructions, effectively preventing collision risks caused by accidentally left-behind items or people approaching. Subsequently, the storage action is precisely broken down into three sequentially triggered and interlocked verification steps: "support structure folding → bed retraction → final locking," ensuring that the completion of each step is a prerequisite for the next. This design constructs a dual safety barrier between "state judgment" and "physical action," significantly improving the safety and reliability of the entire storage process. It not only avoids the risk of equipment damage but also fundamentally protects the safety of the user and the surrounding environment. Furthermore, standardized closed-loop control ensures the precision and smoothness of the storage action.

[0038] As a preferred option, the safe deployment control process specifically includes: S51: Space monitoring, continuously acquiring real-time spatial data of the surrounding environment of the bed collected by the space sensing unit during the unfolding process of the bed; S52: Risk assessment, based on real-time spatial data, to determine in real time whether there are obstacles on the planned movement path of the bed and to assess the risk of collision with obstacles; S53: Dynamic control, dynamically adjusting the deployment action of the bed based on the results of the risk assessment steps, including: when a collision risk is identified, executing pause, avoidance and abort operations.

[0039] As described above, the safe deployment control process in this invention constructs an active safety protection system through three steps: spatial monitoring, risk assessment, and dynamic control. During bed deployment, this scheme continuously scans the surrounding environment, dynamically identifies static and dynamic obstacles on the movement path based on real-time spatial information, assesses collision risks, and then intelligently adjusts deployment actions according to the risk level—including pausing operation, proactive avoidance, or aborting the operation. This closed-loop control method based on real-time perception elevates traditional passive collision avoidance to active risk intervention. Its beneficial effects include significantly improving the safety of the equipment in complex operating environments, effectively preventing collision accidents that may occur during deployment, ensuring the safety of personnel and surrounding facilities, and ensuring the equipment's adaptability in different environments through an intelligent decision-making mechanism.

[0040] Preferably, pre-scanning and path planning are included before the safe deployment control process, specifically: Upon receiving the unfolding command and before the drive mechanism starts, the spatial perception unit is first controlled to perform a spatial scan of the preset area in front of the cabinet to obtain a static environment model. Based on the static environment model, the optimal deployment path and final deployment position of the bed are pre-calculated. The optimal deployment path must avoid the scanned static obstacles, and the final deployment position must ensure that it does not affect the unobstructed main channel. Based on the pre-scan results, determine whether the conditions for safe deployment are met; If the calculated optimal deployment path cannot meet the minimum safe deployment space requirements of the bed, the deployment action will be stopped and a prompt message will be generated to notify the user. If the calculated optimal deployment path can only satisfy the partial deployment of the bed, then a deployment path is planned to perform incomplete deployment, and a prompt message is generated to notify the user that the current deployment state is limited.

[0041] As described above, this invention adds a pre-scanning and path planning step before the safe deployment process. Upon receiving the instruction, it first performs a static scan of the area ahead and constructs an environmental model. Based on this, it pre-calculates the optimal deployment path that avoids obstacles and ensures unobstructed passage. Then, based on spatial feasibility, it intelligently decides whether to fully deploy, deploy with limitations, or abort the operation. This pre-planning mechanism elevates safety control from a "passive reaction" during deployment to "active planning" before deployment. Its beneficial effects include effectively avoiding the risk of collisions with fixed obstacles through forward-looking path calculation, while ensuring the functionality of the main passage through intelligent spatial assessment. This gives the equipment stronger environmental adaptability and decision-making intelligence, improving the safety and rationality of the operation from the source.

[0042] Example 1: Application in hospital wards This embodiment describes the specific application of the present invention in a single-patient hospital room. The cabinet of this bedside table, designed to accommodate a folding companion bed, is styled to match the medical furniture in the ward and placed adjacent to the bed. The cabinet integrates a complete mechanical transmission system, including a precision lead screw motor for horizontal movement and an electric push rod for vertical lifting. An environmental sensing unit is installed on the cabinet surface, including a light sensor to monitor whether the main ward light is off and a digital microphone to analyze ambient noise levels (e.g., monitoring whether continuous conversation has stopped). The bed uses a three-section hinged plate design, with a high-precision thin-film pressure sensor array in the middle layer to accurately detect whether someone is lying down. A wide-angle depth camera is embedded in the front edge of the cabinet as a spatial sensing unit, its field of view covering the area in front of the cabinet. The controller uses an ARM-based embedded system integrated inside the cabinet, responsible for processing all sensor data and controlling motor movements. The human-machine interface includes a touch control screen on the side of the cabinet, a portable remote control, and status indicator lights.

[0043] Its workflow is as follows: When evening arrives, the controller detects that the ambient light level has remained below the threshold and the ambient noise level has dropped to a quiet level for more than 15 minutes, determining that it needs to enter rest mode. At this time, the controller will not act immediately, but will first make the touch screen flash softly and emit a slight prompt sound, asking that the accompanying bed is about to be unfolded, and to cancel by pressing this button. After waiting for 10 seconds without response, the system starts. The depth camera first quickly scans the area in front, builds a spatial model, identifies the position of fixed obstacles such as the hospital bed and medical equipment cart, and plans an optimal unfolding path that ensures the passage width of medical staff. Then, the lead screw motor starts, smoothly moving the folded bed out of the cabinet by about two-thirds of its length and then pausing; then the electric push rod moves, slowly lifting the support frame, so that the three sections of the bed board are unfolded in sequence. During this process, the depth camera continuously monitors, and if it detects that a nurse suddenly enters the safe area, the system will immediately pause the unfolding and issue an alarm. After fully unfolding and locking, the pressure sensor starts working. The next morning, when the pressure sensor detects that the pressure value has been zero for a long time, the system starts a 5-minute safety delay. If the pressure reappears during this period, the folding will be canceled. After the delay ended, the camera reconfirmed that there were no obstructions on the bed or the path. Then, in reverse order, the bed boards were folded first, and the bed was smoothly returned to the cabinet and locked. Throughout the process, medical staff could intervene at any time via remote control.

[0044] Example 2: Home-based elderly care application This embodiment describes the specific application of the present invention in the bedroom of an elderly person living at home. The cabinet is designed as a storage cabinet that blends into the home style, and also serves as a clothing storage function. To adapt to the home environment, its technical implementation has been optimized: in addition to light and sound sensors, the environmental sensing unit also includes a timer module, which can preset the automatic opening time period to be near the elderly person's usual bedtime. The spatial sensing unit uses a more economical and privacy-preserving ToF sensor array to detect the area in front of the cabinet. The controller is connected to the home Wi-Fi network and can be linked with a smart home system. In addition to the panel and remote control, human-computer interaction also supports voice control, allowing the elderly to operate directly with simple commands such as "open the care bed".

[0045] Its workflow fully embodies intelligence and age-friendliness: In the evening, when the system detects dimming light and a quiet environment, combined with a preset time, it enters a preparation state. Unlike the mandatory confirmation in a hospital setting, the home version provides a gentler voice prompt. If no negative command is given within a certain time (such as a voice refusal or pressing the cancel button), execution begins. The ToF sensor prioritizes scanning the ground to ensure there are no small items such as slippers obstructing the unfolding path. The unfolding process is smooth, slow, and extremely quiet, avoiding disturbing the elderly. At night, if the pressure sensor detects that the elderly person gets out of bed, it triggers a soft floor light, which automatically turns off after the elderly person returns to bed, without triggering the folding process. The folding program is only initiated if the pressure sensor has been inactive for an extended period in the morning, and the system determines through a timer that it is past wake-up time. Before folding, the system provides a voice reminder, giving the user time to react. The entire process fully considers the comfort, safety, and privacy of the home environment, greatly facilitating use by children providing nighttime care or by home caregivers.

[0046] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A bed-cabinet combination storage folding companion bed, characterized in that: include: Cabinet; The bed frame is movable within the cabinet and can be switched between a stowed state and an unfolded state. The drive mechanism, located inside the cabinet, is used to drive the bed to move. An environmental sensing unit, mounted on the cabinet, is used to collect ambient light and ambient sound data. A bed status sensing unit is installed on the bed to collect the load status of the bed. A spatial sensing unit, installed on the cabinet, is used to collect spatial information around the bed. The controller is connected to the drive mechanism, the environmental sensing unit, the bed status sensing unit, and the space sensing unit to control the operation of the drive mechanism. The human-computer interaction unit is used to receive user commands and output status information.

2. A control method for a bed-cabinet combination storage folding companion bed, characterized in that: include: A11: Automatic unfolding control process. Based on the data collected by the environmental sensing unit, when the preset resting conditions are met, the automatic control drive mechanism executes the conversion of the bed from the storage state inside the cabinet to the unfolded state outside the cabinet. A12: Automatic storage control process, based on data collected by the bed status sensing unit, automatically controls the drive mechanism to switch the bed from the unfolded state to the stored state when the preset storage conditions are met; A13: The safe deployment control process, based on data collected by the spatial sensing unit, assesses risks in real time and adjusts deployment actions during the bed deployment process.

3. The control method for a bed-cabinet configuration, storage, and folding companion bed according to claim 2, characterized in that: The automatic deployment control process specifically includes: S11: Environmental data monitoring, continuously acquiring environmental data collected by the environmental sensing unit, including ambient light intensity and ambient sound intensity; S12: Rest condition judgment: Compare environmental data with preset conditions to determine whether the rest conditions are met; S13: Continuous state confirmation. When the rest conditions are met, start timing and confirm that the simultaneously met state continues for a first time period. S14: Execute automatic unfolding. When the continuous state confirmation step is established, an unfolding control command is automatically generated, and the actuator is driven to change the bed from the storage state inside the cabinet to the unfolded state.

4. The control method for a bed-cabinet combination storage folding companion bed according to claim 3, characterized in that: When determining rest conditions, the specific rest conditions are as follows: A21: First condition: Ambient light intensity is lower than the first preset threshold; A22: Second condition: The ambient sound intensity is lower than the second preset threshold.

5. The control method for a bed-cabinet combination storage folding companion bed according to claim 4, characterized in that: Before the automatic execution of the control flow, a user confirmation and intervention step is also included: S21: When the continuous status confirmation step is successful, a prompt message is first issued through the human-computer interaction unit; S22: Start a delay window. If no cancellation command is received from the user within the delay window, execute the automatic expansion control flow. S23: If a cancellation command is received within the delay window, the current automatic expansion process will be aborted. The prompt information is either a visual prompt or an auditory prompt. The visual prompt is the flashing of an indicator light and the display of a specific color, while the auditory prompt is a prompt sound.

6. The control method for a bed-cabinet configuration, storage, and folding companion bed according to claim 5, characterized in that: The specific process of controlling the bed's deployment during automatic deployment includes: S31: Control the drive mechanism to smoothly move the bed out of the cabinet; S32: After the bed is moved to the predetermined position, control the lifting mechanism to unfold the support structure and bed board of the bed; S33: Automatic deployment is completed after receiving a feedback signal indicating that the bed has been fully deployed and locked.

7. The control method for a bed-cabinet combination storage folding companion bed according to claim 6, characterized in that: The automatic storage control process specifically includes: S41: Pressure status monitoring, continuously acquiring pressure data collected by the bed status sensing unit; S42: Bed-off status judgment. When the pressure data changes from being higher than the preset pressure threshold to being continuously lower than the preset pressure threshold, it is determined that the user has left the bed. S43: Safety Delay. After determining that the user has left the bed, a delay timer of a preset duration is started, and pressure data continues to be monitored during the delay period. S44: Perform automatic folding. If the pressure data remains below the preset pressure threshold throughout the entire delay timer period, a folding control command will be automatically generated, and the actuator will be driven to change the bed from the unfolded state to the folded state inside the cabinet.

8. The control method for a bed-cabinet configuration, storage, and folding companion bed according to claim 7, characterized in that: Before implementing automatic storage, a space safety check is also performed, specifically: The spatial sensing unit scans the area above the bed and the storage movement path to confirm that there are no obstructions. Once it is confirmed that there are no obstructions, automatic storage will be performed; When an obstruction is detected, the process is paused and a message indicating an obstacle is present is issued.

9. The control method for a bed-cabinet configuration, storage, and folding companion bed according to claim 8, characterized in that: The safe deployment control process specifically includes: S51: Space monitoring, continuously acquiring real-time spatial data of the surrounding environment of the bed collected by the space sensing unit during the unfolding process of the bed; S52: Risk assessment, based on real-time spatial data, to determine in real time whether there are obstacles on the planned movement path of the bed and to assess the risk of collision with obstacles; S53: Dynamic control, dynamically adjusting the deployment action of the bed based on the results of the risk assessment steps, including: when a collision risk is identified, executing pause, avoidance and abort operations.

10. The control method for a bed-cabinet configuration, storage, and folding companion bed according to claim 9, characterized in that: Before proceeding with the safe deployment control process, pre-scanning and path planning are also included, specifically: Upon receiving the unfolding command and before the drive mechanism starts, the spatial perception unit is first controlled to perform a spatial scan of the preset area in front of the cabinet to obtain a static environment model. Based on the static environment model, the optimal deployment path and final deployment position of the bed are pre-calculated. The optimal deployment path must avoid the scanned static obstacles, and the final deployment position must ensure that it does not affect the unobstructed main channel. Based on the pre-scan results, determine whether the conditions for safe deployment are met; If the calculated optimal deployment path cannot meet the minimum safe deployment space requirements of the bed, the deployment action will be stopped and a prompt message will be generated to notify the user. If the calculated optimal deployment path can only satisfy the partial deployment of the bed, then a deployment path is planned to perform incomplete deployment, and a prompt message is generated to notify the user that the current deployment state is limited.

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