Fall detection and prevention system and method

Abstract

The invention provides a fall detection and prevention system and method. The system comprises: a standalone device comprising one or more sensors strategically positioned to cover the entire monitoring area for real-time monitoring of objects in an indoor environment and collecting data necessary for fall detection; one or more processors responsible for processing the data acquired by the sensors in real time, implementing a fall detection and prevention algorithm to analyze a pattern associated with a fall, a potential fall or an unsafe situation, and generating a necessary response; and a communication module configured to trigger the necessary response. The system provided by the invention can utilize basic facilities such as ceiling fans and radar technology to ensure the safety and health of individuals in an indoor environment. The integrated system and method combine technical innovation and user-friendly functions, can effectively detect and prevent tumble, and ensures that a safer environment is provided for high-risk patients, old people and rehabilitation periods.

Description

Technical Field

[0001] The present invention relates to a monitoring system, and more particularly to a fall detection and prevention system and method. Background Art

[0002] Falls, especially for vulnerable groups such as older adults or people with health problems, can result in serious injuries.

[0003] Traditional fall detection systems often rely on uncomfortable wearable devices and face challenges ranging from user noncompliance to limitations in monitoring bedridden individuals.

[0004] Additionally, camera-based fall detection systems, despite their potential, have obstacles such as privacy issues and are not suitable for use in private areas such as bedrooms, bathrooms, and toilets.

[0005] The following are the challenges of existing technologies: a) Limitations of wearable devices: Traditional fall detection systems that rely on wearable devices may be uncomfortable for bedridden individuals, forgotten, or not used at all, leaving serious monitoring gaps.

[0006] b) Privacy issues with camera-based systems: Camera-based fall detection systems using computer vision face challenges related to privacy issues. Moreover, it remains impractical to install visual fall detection sensors in private areas such as bedrooms, bathrooms, and toilets. There are growing concerns about CCTV systems invading public privacy, and there is a need for alternative sensor technologies that do not infringe on privacy issues.

[0007] c) Monitoring of bedridden patients: In hospitals, rehabilitation centers, chronic disease wards, and residency settings, there is a great need to monitor bedridden patients, whether they are restricted from getting out of bed alone or are allowed limited ambulation.

[0008] d) Fall detection in private spaces: Bathrooms, showers, and toilets are key areas where falls often occur and traditional camera-based sensors are not practical.

[0009] e) Alarm systems and remote patient monitoring systems (RPM) for caregivers: It is necessary to provide timely alerts to nearby caregivers or remote patient monitoring systems, especially in scenarios such as home hospitalization, intensive care units, geriatric wards, hospitals, or rehabilitation centers.

[0010] f) Monitoring of common areas in elderly homes: In addition to individual monitoring, monitoring of common areas in elderly homes is required to ensure the safety of all elderly residents, including those who do not have wearable fall detection devices, without compromising the privacy of residents.

[0011] Falls, especially among older adults or individuals with certain health conditions, can result in serious injury. Traditional fall detection systems often rely on wearable devices, which for bedridden individuals may be uncomfortable, not worn, forgotten in a drawer, or simply not used. Summary of the invention

[0012] Technical Problems Solved by the Invention A fall detection and prevention system and method are provided to address these outstanding problems in the prior art to ensure a more reliable and user-friendly method for detecting and preventing falls of a subject.

[0013] The object of the present invention is to provide a system and method for personal fall detection and prevention in indoor environments such as homes, hospitals, rehabilitation centers, nursing homes, etc., specifically utilizing indoor devices or self-contained device devices and radar technology. By utilizing the strategic high-mounted location of the stand-alone device and excellent radar overhead coverage, the system of the present invention is intended to overcome the limitations of existing fall detection solutions. The background of the present invention is rooted in addressing the safety of individuals at risk of falling, especially in and around beds and private areas such as bathrooms, toilets and bedrooms. .

[0014] The invention aims to provide a non-intrusive, reliable and privacy-conscious alternative. In practice, the ceiling fan is equipped with strategically placed radar sensors that continuously emit and analyze signals within its range. These sensors form the backbone of a sophisticated fall prevention and detection algorithm embedded in the system’s microcontroller or processing unit. The algorithm processes the radar data in real time, identifying patterns that indicate potential and actual falls. Careful calibration of sensitivity levels and thresholds ensures that the system can distinguish between regular motion and true fall events. Technical solutions adopted to solve the above technical problems A fall detection and prevention system, comprising: A standalone device comprising one or more sensors: the sensors are strategically positioned to cover the entire monitoring area, for real-time monitoring of objects in an indoor environment, and for collecting data necessary for fall detection; One or more processors responsible for processing data acquired by the sensors in real time, implementing fall detection and prevention algorithms to analyze patterns associated with falls, potential falls, or unsafe conditions, and generating necessary responses; and Communication module: configured to trigger the necessary response.

[0015] Preferably, the sensor comprises a radar sensor.

[0016] In some embodiments, the independent device is an indoor appliance, and the system is integrated into the indoor appliance or installed near the indoor appliance.

[0017] In some embodiments, the system is set in or installed near an indoor device; the radar sensor is used to monitor events, the events including: when a person gets up or stands on the bed; or, when someone unfortunately falls; or, if a person leaves the bed area; the processor implements a fall detection and prevention algorithm to determine the relevant state of a person's fall, the relevant state including: getting up or climbing over a side rail or standing or walking or crossing a virtual boundary, and generates necessary responses accordingly, the responses including alarms or interventions or notifications.

[0018] In some embodiments, the system is integrated into the indoor device; the radar sensor is integrated into the indoor device in one of the following forms: The radar sensor is an inherent component of the electronic design of the indoor device and is an integral built-in part of the electronic design; or, the radar sensor is a separate unit adjacent to and connected to the indoor device.

[0019] In some embodiments, the system also includes a control component for an indoor device, the processor is directly integrated into the control component for the indoor device and / or integrated into a printed circuit; the processor is communicatively connected to the control component for the indoor device; the control component for the indoor device serves as a central interface for communicating with the radar sensor; the control component for the indoor device controls the indoor unit according to instructions issued by the processor.

[0020] In some embodiments, the indoor equipment includes one or more of a fully functional lighting device, a light bulb, a mirror, or an air conditioning unit.

[0021] In some embodiments, the system is integrated into a fully functional standalone radar device.

[0022] In some embodiments, a radar antenna cover is provided on the outside of the radar sensor, and the radar antenna cover is suitable for the design and configuration of the indoor equipment and is seamlessly integrated into the design of the indoor equipment; the radar antenna cover is transparent to radar signals and allows radar waves to pass without distortion or interference.

[0023] In some embodiments, the radar sensor includes a radar on a chip (ROC); the processor includes an artificial intelligence (AI) processor; the AI ​​processor processes radar data to classify and understand human behavior and status, and uses artificial intelligence algorithms to identify potential and actual fall detections.

[0024] In some embodiments, the system is connected to a cloud service and / or a local edge device via a wired or wireless network to provide flexibility in data management; the system interacts with a mobile device application to allow a user to monitor the system's data via a mobile device, and / or receive alerts or notifications, and / or adjust settings.

[0025] In some embodiments, the system further comprises an event recording unit for recording events and data generated by the system; the system further comprises an onboard antenna to enhance the communication capability of the system.

[0026] In some embodiments, the radar sensor includes a dual radar system for enhanced reliability, enabling cross-verification of fall events between radar sensors to reduce the likelihood of false alarms.

[0027] In some embodiments, the communication module uses a wireless communication protocol to enable seamless integration of the system with a smartphone or monitoring device.

[0028] In some embodiments, the system further comprises a power supply unit for supplying power to the radar sensor, the control component and the communication module; the power supply unit is combined with an energy-saving component to optimize power consumption.

[0029] In some embodiments, the processor implements a fall detection and prevention algorithm with adjustable sensitivity levels and thresholds to fine-tune parameters and minimize false alarms.

[0030] The processor implements fall detection and prevention algorithms including those based on sudden changes in center of gravity height and irregular movement patterns, including an individual climbing over side rails or standing up in bed.

[0031] The processor processes radar data for a variety of applications, including assessing safety levels and potential falls and implementing response measures.

[0032] In some embodiments, the processor cooperates with the communication module to seamlessly trigger an alarm; the system is configured with an alarm system, and the processor controls the communication module to trigger the alarm system when an event of a person falling, the possibility of falling, or crossing a virtual boundary is detected, and a notification is immediately sent to a designated person.

[0033] In some embodiments, the system further comprises a user interface for configuration, parameter adjustment, monitoring of fall detection events, and receiving alarms or notifications; the processor is connected to the user interface via a communication module.

[0034] In some embodiments, the user interface includes a visual feedback component; the user interface is disposed on the indoor device; and the user interface is connected to a central monitoring system for alerting staff and activating a response procedure.

[0035] The present invention also provides a fall detection and prevention method, comprising the following steps: Continuously monitor individuals in indoor environments in real time and obtain radar data necessary for human fall detection from one or more strategically located sensors; Process radar data in real time; Implementing a fall detection algorithm with adjustable sensitivity levels and thresholds to analyze patterns associated with falls; Identify potential fall events based on the processed data; triggering an alarm system within the communication module upon detection and optionally confirmation of a fall; and Send notifications to designated personnel in a timely manner.

[0036] In some embodiments, the method is performed using a system as described above.

[0037] In some embodiments, the method further comprises: post-fall monitoring, which continues to observe the individual's health status after a fall event, provides continuous monitoring and provides additional notifications when necessary to ensure continued safety and care.

[0038] In some embodiments, when a potential fall is detected, such as a person in bed climbing over a guardrail or even standing up in bed, the ceiling fan as part of the fall prevention mechanism responds in real time and sends a corresponding alarm.

[0039] The system of the present invention can integrate a communication module for notification, sending alerts to a designated smartphone or central monitoring system. The user interface allows easy configuration, parameter adjustment and fall detection event monitoring. The power management system is optimized for power, ensuring long-term reliability while minimizing energy consumption.

[0040] The radar module and interface proposed in the present invention can be integrated into other similar indoor equipment, including lighting devices, light bulbs, mirrors, air conditioning devices, etc.

[0041] The radar module and interface proposed in the present invention can be integrated into an independent radar device with complete functions.

[0042] The beneficial effects of the present invention are: The fall detection and prevention system and method of the present invention combines technological innovation and user-friendly functions to effectively detect and prevent falls, ensuring a safer environment for high-risk patients, the elderly, or subjects during rehabilitation.

[0043] The summary of the invention does not necessarily disclose all the features necessary to define the invention. The invention may exist in sub-combinations of the disclosed features. Various combinations and sub-combinations are fully described in the detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The accompanying drawings provide a further understanding of the present invention and are incorporated in and constitute a part of this specification. The accompanying drawings illustrate exemplary embodiments of the present invention and together with the description serve to explain the principles of the present invention.

[0045] The accompanying drawings are for illustration purposes only and are not intended to limit the present invention, wherein: Figure 1 A ceiling fan with a radar-based sensor for fall detection according to a preferred embodiment of the present invention is shown.

[0046] Figure 2 A block diagram of a ceiling fan with a radar-based sensor for fall detection according to a preferred embodiment of the present invention is shown.

[0047] Figure 3 An example of a fall detection and prevention system according to a preferred embodiment of the present invention is shown.

[0048] Figure 4 An example of a virtual boundary alarm of a preferred embodiment of the present invention is shown.

[0049] Figure 5 The system architecture for monitoring and fall detection according to the preferred embodiment of the present invention is shown.

[0050] Figure 6 A flow chart for monitoring and fall detection according to a preferred embodiment of the present invention is shown. DETAILED DESCRIPTION

[0051] The following is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. The embodiments are described in such detail to clearly describe the present invention. However, the detailed description provided is not intended to limit the expected changes of the embodiments; on the contrary, all modifications, equivalents and alternatives falling within the spirit and scope of the present invention should be covered.

[0052] In the following description, numerous specific details are set forth in order to provide a thorough understanding of embodiments of the present invention. It will be apparent to one skilled in the art that embodiments of the present invention may be practiced without some of these specific details.

[0053] Various terms used herein are as follows. For the purposes of this document, the terms used should be given the broadest definitions given to them by people in the relevant art as reflected in printed publications and issued patents at the time of filing.

[0054] The present invention provides a fall detection and prevention system and method that can use infrastructure such as ceiling fans and radar technology to ensure the safety and health of individuals in indoor environments. The fall detection and prevention system (hereinafter referred to as the system or the system) uses strategically positioned radar sensors on ceiling fans to continuously acquire and process real-time data through a microcontroller or processor. An intelligent fall detection and prevention algorithm with adjustable sensitivity levels and thresholds can accurately identify potential fall events. The system can be integrated into ceiling fans or other similar indoor devices, including fully functional lighting devices, light bulbs, mirrors, and air conditioning units. The system can also be integrated into a fully functional standalone radar device that is combined or connected to indoor appliances. The system optionally uses dual radar capabilities to enhance reliability and reduce false alarms through cross-validation. When a fall is confirmed, the system triggers an alarm system in its communication module to immediately notify the designated recipient. The system can also use a user interface to allow configuration, monitoring, and visual feedback. The fall detection and prevention system and method of the present invention combines technological innovation and user-friendly functions to effectively detect and prevent falls, ensuring a safer environment for high-risk patients, the elderly, and individuals in recovery.

[0055] The fall detection and prevention system of the present invention can be integrated into ceiling fans or other similar indoor electronic devices, and indoor devices incorporating the system include lighting devices, light bulbs, mirrors, and air conditioning devices with full functionality. The system can also be integrated into a standalone radar device with full functionality. A radar module or radar-on-chip on any indoor electronic device can provide similar functionality, which provides compatibility of the present invention with existing electronic devices or appliances.

[0056] Furthermore, by integrating radar technology into the existing infrastructure of ceiling fans, the inventive solution aims to improve the safety and well-being of individuals at risk of falling. The inventive fall detection and prevention system addresses the shortcomings of the prior art, providing a comprehensive, user-friendly, and privacy-focused approach to fall detection in the comfort of home, hospital, and similar care center environments. Thorough testing and adherence to safety standards are critical to ensure the effectiveness and ethical implementation of this groundbreaking invention. The innovation can detect critical events such as: a) When a person gets out of bed or stands up in bed, which is necessary to prevent falls; b) In the unfortunate event of a person falling, the system can detect this in time and alert the caregiver or medical staff; c) If a person leaves the bed area, the system can generate an alarm to ensure the safety of vulnerable individuals (e.g., patients with chronic diseases, dementia, or the elderly); Artificial intelligence (AI)-based processing assistance systems process radar data and determine falls and other patterns; The prediction module assisted by the AI ​​engine can also predict the possibility of a fall event by continuously monitoring one or more people.

[0057] Figure 1 A fall detection and prevention system 100 of a preferred embodiment of the present invention is shown, which includes a ceiling fan having a radar-based sensor for fall detection. The system 100 includes a radar module, a processor, and a communication module.

[0058] In the fall detection and prevention system of the present invention, a person 101 in a room is continuously monitored by using a radar module (radar sensor) installed in a ceiling fan 102. The ceiling fan control component 103 serves as a central interface for communication with the radar module. This communication allows the collection of comprehensive data related to the person's presence, posture, and movement. The collected data is then processed and can be used for various applications, including assessing safety levels and potential falls and implementing response measures. The integration of the radar module in the ceiling fan ensures an unobtrusive and effective method to monitor individuals and improve their safety and health.

[0059] Figure 2 A component block diagram (200) of a ceiling fan with a radar-based sensor for a fall detection or prevention system according to a preferred embodiment of the present invention is shown. More specifically, the system 100 includes a power supply unit 212, a ceiling fan 202 and components, a radar sensor 204, a processor 206, a fall detection algorithm 208, and an alarm system 210, wherein the fall detection algorithm 208 is configured on the processor 206.

[0060] The ceiling fan 202 and its components are powered by a power supply unit 212. The power supply unit provides a stable and continuous power supply to the radar sensor, (micro)controller and communication module. An energy-saving operation mode can be used to optimize power consumption and enhance the sustainability and reliability of the system.

[0061] Radar sensors 204: Multiple radar sensors are strategically positioned inside or adjacent to the ceiling fans 202 to ensure full coverage of the monitoring area. These sensors continuously emit and analyze signals to detect motion and capture the data required for fall detection.

[0062] Processor 206: As the core processing unit, it controls and coordinates the operation of the radar sensor and the fall detection algorithm; it acts as the brain of the system, facilitating real-time data processing and decision making. Processor 206 can be a microprocessor or a microcontroller, used as a data processing unit.

[0063] Fall Detection Algorithm 208: The processor processes radar data in real time to implement a sophisticated fall detection algorithm. The algorithm analyzes patterns associated with falls, and the fall detection algorithm can be based on factors such as sudden changes in center of gravity height and irregular movement patterns (such as a person climbing over a side rail or standing up in bed). The system has adjustable sensitivity levels and thresholds, which allows flexibility to fine-tune parameters and minimize the occurrence of false alarms. The processor also collaborates with the communication module to seamlessly trigger an alarm.

[0064] Alarm system 210: When the radar sensor 204 detects a fall, a potential for a fall, or a crossing of a virtual fence, the communication module activates the alarm system. It sends timely notifications to designated recipients (such as caregivers, family members, or emergency service personnel), ensuring a quick response to potential dangers or emergencies. The system may also include a user interface, which the communication module may facilitate to allow individuals to configure system settings, monitor fall events, and receive alerts. The user interface may include visual feedback elements, such as LED indicators or display panels on ceiling fans, to enhance user interaction and awareness. The interface may also be connected to a central monitoring system for staff alerts and response procedure activation.

[0065] In addition, the system integrates wireless communication protocols (communication modules), such as Bluetooth, Wi-Fi or other relevant standards. This enables seamless communication between the system integrated in the ceiling fan and external devices (including smartphones or central monitoring units). The use of wireless communication protocols ensures efficient integration, data exchange and compatibility with various monitoring devices.

[0066] In the context of fall detection, especially for couples or elderly people who share a bed, radar systems, whether single or multiple, play a key role in enhancing safety and reliability. In addition to embodiments with a single radar, the system can also feature a dual radar system designed specifically for fall detection, a technology that can distinguish between movements with extremely high accuracy. This personalized monitoring capability is critical to independently assess the health and well-being of each person, ensuring a comprehensive approach to fall prevention.

[0067] The dual radar system operates collaboratively to cross-validate detected falls, significantly reducing the likelihood of false alarms. For example, if one radar detects a fall, the other radar can independently confirm that the event occurred, resulting in a more reliable and accurate alert. This collaborative verification mechanism is particularly important in scenarios involving couples or elderly people, where an additional layer of safety is critical. In addition, each radar unit within the system can focus on a specific area or individual, allowing for detailed tracking and analysis. This targeted approach enhances the system's ability to personalize fall detection, ensuring that unique movement patterns are accurately captured and evaluated.

[0068] The utilization of multiple radars not only provides granularity in monitoring but also introduces redundancy, thereby enhancing the overall reliability of the fall detection system. In addition to radar technology, the system of the present invention also allows for the integration of various other sensors and technologies dedicated to fall detection. These additional sensors are equipped with advanced processing and communication capabilities, which facilitate comprehensive monitoring and surveillance. By seamlessly collecting, processing, and transmitting data, the system ensures an effective and comprehensive fall detection approach, thereby improving the safety and health of individuals who require personalized monitoring.

[0069] Processing of fall-related conditions: The fall detection and prevention system of the present invention is configured to detect and process fall-related conditions, such as: Getting out of bed: The system can determine when an individual gets out of bed, which is critical for fall prevention; Climbing over guardrails, or standing up in hospital beds: Hospital beds often have guardrails to prevent patients from inadvertently getting out of bed. Detecting someone trying to climb out of bed is the first sign of a potential fall-related incident; Standing: Identifying when a person is standing is important for assessing mobility and activity levels; Walking: The system can detect walking, which is important for understanding the individual's movement, level of movement, and direction; Fall detection and alerts: In the event of a fall, the system immediately detects the fall and generates an alert. This rapid response is critical to providing timely assistance. Crossing Virtual Boundary Alerts: When an individual crosses a virtual boundary, such as leaving the bed area, the system can create an alert, a feature that enhances the safety and security of the user or the elderly.

[0070] Radar module integration: In a specific design, the fall detection and prevention system of the present invention incorporates a radar-on-chip (ROC) sensor module, referred to as a "radar module", which is integrated into a ceiling fan or other device to enhance the functionality of the system; the integration can take one of two forms: As an inherent component of the device’s electronic design: In this configuration, the ROC sensor module is an integrated and built-in part of the electronic design of the room’s electronics, meaning it is seamlessly integrated during the manufacturing process and becomes an inherent feature of the device; Standalone Unit Connected to Adjacent Equipment: Alternatively, the ROC sensor module can be a standalone unit adjacent to and connected to indoor electronic equipment. This configuration allows for flexible installation and positioning as the radar module can be connected to indoor electronic equipment or placed nearby to optimize monitoring coverage.

[0071] The ROC sensor module is essential for high-precision motion and presence detection. It transmits millimeter wave signals and analyzes the reflections, providing detailed information about the individual's position and movement. The integration of radar technology significantly enhances the system's monitoring capabilities. The ROC sensor module (radar module) can detect even subtle movements and changes in the monitored area. The radar module helps with occupancy detection and tracking, which is particularly valuable for understanding the presence and activities of individuals in the bed area. The radar module helps with fall detection. It can detect falls with high accuracy, enabling rapid response and assistance.

[0072] In another embodiment, the fall detection and prevention system of the present invention employs a user interface that enables an individual to configure settings, monitor falls, and receive alerts. For example, visual feedback may be provided through a user interface such as an LED indicator or a display panel. The ceiling fan control mechanism is activated and an alert mechanism option is provided. After a fall event is detected and the necessary response is triggered, the system continues to actively observe the health status of the faller. This post-fall monitoring involves a continuous monitoring process that enables the fall detection and prevention system of the present invention to assess the individual's condition over time. If any further issues or anomalies are detected during this monitoring phase, the system will initiate additional notifications. This functionality ensures that in addition to an immediate response to a fall, long-term, thoughtful safety and care is provided, which helps to take a more comprehensive and continuous approach to protecting personal well-being.

[0073] Figure 3 An example of a fall detection and prevention system 300 of a preferred embodiment of the present invention is shown. In one embodiment, the operation of this innovative system is a multifaceted process designed to enhance the safety and health of individuals, especially those in bedrooms or healthcare environments. Ceiling fan 301 acts as a central hub, integrating advanced sensor technology, one of whose main functions is to monitor individuals or patients 304. The integrated sensors of the system 300, including radar technology, continuously track the activities of the individual. When a fall is detected, the system immediately responds, triggering an alarm or intervention to ensure the safety of the person. The radar module with transmit and receive echoes 303, 302 plays a key role in this process, monitoring the environment and the activities of the person. The radar module transmits real-time data to other components within the system. The radar module is essential for the fall detection and safety functions, as it helps identify situations where the height of the Center of Gravity (COG) changes suddenly and other potential fall situations. In the event of a fall or any safety issue, the system can immediately send an alert to the caregiver or medical professional. This feature ensures that individuals are closely monitored, their well-being is prioritized, and timely assistance is provided when needed, making it a comprehensive and important solution for enhancing safety and healthcare in various environments.

[0074] Figure 4An example of a virtual boundary alarm in a fall detection and prevention system, i.e., a fall detection and prevention system 400, according to a preferred embodiment of the present invention is shown. The functionality of the system revolves around ensuring the safety and well-being of a person or patient 403 within a designated area. The ceiling fan 401 acts as a central hub, integrating advanced sensors and technologies, including a radar module. The radar module uses echoes 402 to continuously monitor the movement of a person, paying particular attention to their position and movements within a predetermined area around the bed. These areas are defined to maintain the safety of the individual. When the subject is detected crossing a virtual boundary 404 within these predefined areas, the system immediately generates an alarm. These alarms can be quickly communicated to caregivers or medical professionals, enabling a quick response to resolve the situation and ensure that the person remains within the designated safe area, thereby prioritizing their safety and well-being.

[0075] Figure 5 The architecture of a system 500 for monitoring falls and potential events in a fall detection and prevention system according to a preferred embodiment of the present invention is shown. The outlined architecture includes various components (or modules) and their functions, creating a comprehensive system for monitoring and enhancing indoor environments. The following describes the details of each component: Radar module 501: This module is responsible for radar-based detection, which transmits radar signals and captures their reflected signals to detect and track the presence and activities of individuals in the monitoring area; Radar on a Chip (ROC) 502: This component is a specialized radar technology called Radar on a Chip (ROC), which plays a key role in accurate motion detection and presence sensing. The ROC processes radar data and extracts valuable information reflecting the location and motion of objects within its coverage area. AI processor 503: The AI ​​(Artificial Intelligence) processor is the core component of data analysis. It processes the data collected by the radar module and ROC to classify and understand the behavior and status of individuals. It can identify potential and actual fall detection using artificial intelligence algorithms; Event recording unit 504: This function records the events and data generated by the system. It can maintain a log of fall prevention alarms and other significant events. The event record is valuable for future reference, analysis and improving system performance; Communications and power control module 505: The communications and power control module manages the communications and power aspects of the system. It ensures efficient transmission of data and alarms and manages the power resources of the radar module; Onboard antenna 506: The onboard antenna is an optional component of the system and is used to enhance the communication capabilities of the system to improve signal transmission and reception; Ceiling fan control component 507: Ceiling fan control controls the ceiling fan according to the instructions of the AI ​​processor; Mobile device application 508: This component represents the user interface for interacting with the system. The mobile device application allows the user to monitor system data, receive alerts, and adjust settings. It provides a convenient way for caregivers or individuals to understand the situation and control the system. Cloud / Local Edge Device 509: This component provides flexibility in data management. It allows data to be processed and stored on local edge devices or in the cloud. Local edge processing provides real-time monitoring and immediate action, while cloud storage provides long-term data analysis and remote access.

[0076] Figure 6 A flow chart 600 of a fall detection and prevention system for monitoring a fall detection and prevention scenario according to a preferred embodiment of the present invention is shown. The flow chart outlines the operational steps of a method performed by a system designed specifically for monitoring and enhancing an indoor environment. Details of each step involved are provided below: Step 601, sensor detection: This stage represents the initial step in the process, where sensors (which may include radar or other technology) detect the presence of a person in the monitored area, and the sensors collect data about the individual's posture, movements, transitions, center of gravity, activity level, and balance; Step 602, Fall Prevention and Detection FPD: To ensure safety, the system uses a fall prevention and detection algorithm, which can detect when someone gets up or attempts to climb over a guardrail, or stands up from a hospital bed, thereby signaling a fall risk, which is particularly important in a healthcare environment where patient safety is a priority; Step 603, delay d seconds: This step introduces a delay of a certain number of seconds, which can be a user-defined parameter. The delay is to enable continuous preset time to sample the current state / situation of the individual in his / her environment. After each delay, the algorithm of the FPD in step 602 will be executed and any detected event will be reported to the communication module. This delay can be used to solve short, expected interruptions in monitoring and ensure that events are not triggered prematurely; Step 604, record events (optional step): Optionally, the system may record detected events, which may include creating a log of fall prevention and detection alarms and other events for future reference or analysis; Step 605, transmit events: The system transmits detected events and data to external applications or services. This communication is critical to provide real-time alerts and enable remote monitoring by healthcare professionals or caregivers.

[0077] In one embodiment, the process of detecting and classifying the detected individual within the fall detection and prevention system of the present invention encompasses a comprehensive set of functions within a digital detection and classification framework. This process involves several key steps: Detection and generation of 4D Radar Point Cloud: Starting from the detection of radar echoes, a 4D “Radar Point Cloud” is created, which represents the complete detection of all physical surfaces in the radar coverage area. Each detection point is precisely located in three-dimensional space (x, y, z) and assigned a radial velocity, including a stationary point relative to the radar module position (radial velocity “0”); Grouping and center of gravity calculation: involves grouping the detected radar points into separate objects, including individuals, infants, pets, and other targets; the grouping process generates a center of gravity for each group, their respective positions (x, y, z), and radial velocities relative to the radar module position; Classification of grouped radar returns: The system classifies these grouped radar returns (called "targets") into categories such as people, infants, or other specified categories such as pets or wheelchairs, with each group of radar returns being individually identified as a "target"; Continuous Monitoring and Posture Classification: Human targets, including bedridden chronically ill patients, elderly impaired patients, post-operative patients, etc., are continuously monitored to observe and classify changes in their posture, movements, and behaviors. This classification may include identifying states such as waking up, getting out of bed, climbing over the bed rails or standing in bed, leaving the bed, or approaching a door.

[0078] In some embodiments, the radar module has an integrated radome, which is an important design feature of the fall detection and prevention system of the present invention, allowing for seamless integration of radar technology without compromising the aesthetics or functionality of a ceiling fan or similar indoor equipment. The fall detection and prevention system of an embodiment of the present invention includes a decorative radome designed to wrap around the radar module. The radome acts as a protective and aesthetic cover for the radar module, which can be seamlessly integrated into the design of the indoor equipment without adversely affecting the established configuration.

[0079] Radomes can be incorporated alongside existing components such as light fixture covers, plastic housings or similar designs without any detrimental effects. Decorative radomes are used to protect radar modules from physical damage, dust and other environmental factors. This protection ensures the longevity and reliability of the radar technology. Designed to blend harmoniously with the overall design of a ceiling fan or similar device, the radome can be customized to match the look of the indoor device, maintaining a consistent and pleasing aesthetic.

[0080] The integration process is designed to be simple, ensuring that the radome can be added without major modifications or disruptions to the equipment's configuration. This minimizes installation complexity and associated costs. By seamlessly integrating the decorative radome, the system of the present invention improves the user experience. Users not only benefit from advanced radar technology, but also enjoy a low-profile and attractive design. The decorative radome can adapt to different equipment designs and configurations. It adapts to a variety of forms and styles, enabling it to be used in different settings and applications.

[0081] The system of the present invention, the installation of which is designed to be user-friendly and non-intrusive, involves integrating the sensor system into a ceiling fan or similar device above the bed. A key component of this integration is a radar transparent cover or radome. The radome serves a dual purpose during the installation process: first, it is a decorative enclosure that enhances the overall aesthetic of the device and blends seamlessly with the design of the device. This decorativeness ensures that the installation is visually attractive and does not detract from the appearance of the device. The second key role of the radome is to provide protection for the radar module. It acts as a protective shell that encloses the radar module, protecting it from physical damage, dust and other environmental factors. This protective function ensures the life and reliability of the radar module.

[0082] Despite its protective function, the radome is transparent (transmissive) to radar signals, allowing radar waves to pass through without distortion or interference. This radar transparency is critical to maintaining the functionality of the radar module. The system of the present invention can continue to accurately detect the movement, presence and other data of an individual when enclosed within the radome. The radome can be customized to match the specific design and aesthetics of a ceiling fan or similar device.

[0083] Radomes can be customized to match the look of the equipment, ensuring a cohesive and pleasing appearance. This customization adds a layer of versatility, allowing the system to adapt to a variety of room styles and preferences. Importantly, the installation of a radar-transparent cover (radome) does not disrupt the existing equipment configuration, it can be added seamlessly without major modifications, reducing installation complexity and associated costs. Users can enjoy the benefits of advanced radar technology without making invasive changes to their room setup. The combination of radar technology and radar-transparent covers (radomes) enhances the user experience. Users can not only benefit from advanced monitoring and detection capabilities, but also enjoy a low-profile and attractive design that blends seamlessly with the equipment.

[0084] The system described in the embodiments of the present invention provides an innovative solution for enhancing the performance and aesthetics of indoor equipment. In this system, indoor equipment (from ceiling fans to lighting fixtures, light bulbs, mirrors and air conditioning units) is specially configured to seamlessly integrate radar modules. This integration becomes particularly important with the introduction of specialized radar transparent covers (called "radomes"). Radomes are carefully designed to wrap and protect embedded radar modules within indoor equipment. The uniqueness of this solution lies in the careful consideration of design and composition, ensuring that the radome coexists harmoniously with the overall aesthetics of the indoor equipment. While providing a protective housing for the radar module, the radome also preserves the functional and visual characteristics of the equipment. In addition, it achieves this balance without hindering the transmission of radar signals. This innovative system effectively combines technology and design, allowing indoor appliances to not only perform optimally but also maintain their original appeal, making it a valuable addition to the field of indoor appliance technology and design.

[0085] The system described in the embodiment of the present invention uses a flexible data communication module to manage sensor data, which is designed to adapt to various scenarios and user preferences. By default, sensor data is usually processed locally. This means that the data collected by the sensor will be analyzed and processed within the system or indoor electronic equipment itself. Local processing ensures real-time response and is critical in situations where immediate action is required. In addition to local processing, the system described in the embodiment of the present invention can also communicate with edge devices. Edge devices are intermediate computing devices that are closer to the data source (sensor system). Compared with cloud-based solutions, these edge devices can further process and analyze data, provide more computing power and may reduce latency. The system described in the embodiment of the present invention is also able to transmit sensor data to cloud services. This cloud-based communication enables remote monitoring, data storage, and advanced analysis. Cloud services have the advantage of being accessible from anywhere with an Internet connection. The system described in the embodiment of the present invention can connect to the data network using wired and wireless methods. Wired connections can include Ethernet, while wireless networks can include Wi-Fi, Bluetooth, or 4 / 5G connections. The choice of network connection depends on the specific application and user preferences. The system of the embodiment of the present invention is equipped with full-duplex communication capabilities, allowing two-way data transmission, which means that not only can data from the sensor be sent to an external device, but also pre-recorded audio files can be received from the external device.

[0086] The data communication capabilities of the system described in the embodiment of the present invention provide a multi-faceted data management approach. Local data processing ensures immediate response to critical events, while providing data redundancy and storage through connections to edge devices and cloud services, ensuring that historical data is available for analysis. Cloud service integration allows remote monitoring and access, allowing users to understand personal health and environmental conditions at any time anywhere there is Internet access. In addition, the collected data can be analyzed in the cloud for advanced analysis, providing valuable insights into long-term trends and patterns. The system described in the embodiment of the present invention is versatile and can be connected through various wired and wireless networks and full-duplex communication capabilities to ensure compatibility with different devices and data transmission methods.

[0087] The system described in the embodiment of the present invention is equipped with an alarm and notification mechanism, that is, an alert communication system or the above-mentioned alarm system, which enables it to send timely notifications to external applications or servers. These alarms are essential to ensure the safety, well-being and healthcare management of individuals. The alert communication system plays a key role in achieving rapid response to major events and ensuring that individuals receive timely help when necessary. The system described in the embodiment of the invention significantly improves safety through fall prevention and detection alarms, which is particularly beneficial to vulnerable groups such as the elderly and patients in medical environments. In healthcare and elderly care environments, the alarm communication system is an essential tool to improve patient care, safety and overall well-being. In addition, the remote monitoring function ensures that healthcare professionals and caregivers can actively monitor and respond to events even when they are physically far away, ultimately improving the quality of care and patient treatment. Detailed descriptions of alarm generation for fall prevention, fall detection and severe movement disorders are provided below: Fall prevention – when attempting to climb over the guardrails of a hospital bed or when standing up in bed: Fall prevention alarms are triggered when an individual attempts to climb over the guardrails and may fall over the top and free fall to the floor, which is particularly important when monitoring high-risk patients after surgery or patients who are confused and disoriented and must remain in bed; Fall prevention - crossing virtual boundaries: When an individual approaches the edge of the bed or a virtual boundary defined around the bed, a fall prevention alarm is triggered; the system of the embodiment of the present invention monitors the proximity of these boundaries and issues an alarm when someone is at risk of falling, which is particularly important in healthcare environments where patients may have limited mobility, and fall prevention is a key aspect of ensuring patient safety; Fall Detection – When the target’s COG or posture classification indicates a fall: The fall detection alarm is activated when the system’s analysis of an individual’s center of gravity (COG) or posture classification indicates a fall, which may be a sudden or uncontrolled movement indicating that someone has fallen. Rapid fall detection is critical to getting immediate assistance in the event of an accident or emergency, especially in healthcare and senior care facilities.

[0088] The system of the present invention incorporates the radar module into a ceiling fan, an appliance or an independent radar sensor device to provide multiple embodiments, each embodiment is customized for different installation scenarios and requirements. These embodiments are disclosed in detail below: Standalone Radar Module Unit: In the first embodiment, the radar module is used as a standalone unit with all its components and functionalities. The radar antenna is facing downwards and is equipped with a communication channel for interaction with the ceiling fan unit. This standalone radar module provides flexibility in placement and can be optimally positioned according to specific monitoring requirements.

[0089] Radar module under radome cover: In a second embodiment, the "front end" of the radar module, including the antenna and RF circuitry, is located under a dedicated cover with the characteristics of a radome. The radome cover protects and hides the radar components while allowing the radar signal to pass through. The radar control components (or processor) are connected to the ceiling fan controller and other necessary components as dictated by the specific implementation. This configuration combines performance with aesthetics.

[0090] Integrated Radar Control Components (Processors): A third embodiment involves integrating the radar control component directly into the control component and / or printed circuit of the ceiling fan. This approach simplifies installation and reduces the number of separate components. The radar control component typically communicates with the ceiling fan control component via half-duplex or full-duplex communications, which communication channel facilitates the exchange of information that enables the ceiling fan to respond to radar inputs and adjust its operation accordingly.

[0091] Regardless of the embodiment, the radar beam direction is typically downward, covering the floor area and most of the room space. However, certain embodiments may provide the flexibility to adjust the radar direction to accommodate different monitoring scenarios. For example, it can be adjusted to face a bed or other area of ​​interest. This adaptability ensures that the radar module can be optimized for its specific application. In terms of installation, the radar module is typically fixed to the ceiling fan frame using methods such as magnets, screws or other mechanical fasteners. These connection mechanisms allow the direction and angle of the radar module relative to the ceiling fan frame substrate to be adjusted. Optimizing the distance between the radar and the radome or covering is critical to achieving optimal performance. Overall, these embodiments provide the versatility of incorporating radar technology into a variety of indoor devices, whether ceiling fans, appliances or stand-alone sensor devices, thereby ensuring effective and unobtrusive monitoring and control.

[0092] It is important to note that certain embodiments of the sensor module including the sensor and communication module are discussed in detail in the accompanying drawings, which illustrate the physical structure and integration of the sensor system, providing a comprehensive understanding of its components and functions.

[0093] While the invention has been described and illustrated with certain preferred and alternative embodiments, it should be understood that various modifications can be made to these embodiments without departing from the invention, the scope of which is defined by the appended claims.

Claims

1. A fall detection and prevention system, characterized in that, The system comprises: A standalone device comprising one or more sensors: the sensors are strategically positioned to cover the entire monitoring area, for real-time monitoring of objects in an indoor environment, and for collecting data necessary for fall detection; One or more processors responsible for processing data acquired by the sensors in real time, implementing fall detection and prevention algorithms to analyze patterns associated with falls, potential falls, or unsafe conditions, and generating necessary responses; and Communication module: configured to trigger the necessary response.

2. The system according to claim 1, characterized in that: The sensor comprises a radar sensor; The independent device is an indoor appliance, and the system is integrated into the indoor appliance or installed near the indoor appliance; The sensors are used to monitor events, including: when a person gets up or stands in bed; or, when someone unfortunately falls; or, if a person leaves the bed area; the processor implements a fall detection and prevention algorithm to determine the relevant state of the person's fall, and the relevant state includes: getting up or climbing over the side rail or standing or walking or crossing a virtual boundary, and generates necessary responses accordingly, and the responses include alarms or interventions or notifications.

3. The system according to claim 2, characterized in that The sensor is integrated into the indoor appliance in one of the following forms: The sensor is an inherent part of the electronic design of the indoor appliance and is an integral built-in part of the electronic design; or The sensor is a separate unit located adjacent to and connected to the indoor appliances.

4. The system according to claim 3, characterized in that The system also includes a control component for indoor appliances, the processor is directly integrated into the control component for the indoor appliances and / or integrated into a printed circuit; the processor is communicatively connected with the control component for the indoor appliances; the control component for the indoor appliances is used as a central interface for communicating with the sensor; the control component for the indoor appliances controls the indoor unit according to instructions issued by the processor.

5. The system according to claim 2, characterized in that The indoor appliances include one or more of fully functional lighting devices, light bulbs, mirrors or air conditioning units.

6. The system according to claim 1, characterized in that The system is integrated into a fully functional independent sensor device; the independent sensor device is connected to the independent device.

7. The system according to claim 1, characterized in that The sensor is provided with an antenna cover outside, which is suitable for the design and configuration of the indoor appliance and is seamlessly integrated into the design of the indoor appliance; the antenna cover is transparent to the sensor signal and allows the signal wave emitted by the sensor to pass through without distortion or interference.

8. The system of claim 1, wherein: The sensor includes a radar on chip (ROC); the processor includes an artificial intelligence (AI) processor; the AI ​​processor processes data acquired by the sensor to classify and understand human behavior and status, and uses an artificial intelligence algorithm to identify potential and actual fall detection.

9. The system according to claim 1, characterized in that The system is connected to a cloud service and / or a local edge device via a wired or wireless network to provide flexibility in data management; the system interacts with a mobile device application to allow a user to monitor the system's data via a mobile device, and / or receive alerts or notifications, and / or adjust settings.

10. The system according to claim 1, wherein: The system also includes an event recording unit for recording events and data generated by the system; the system also includes an onboard antenna to enhance the communication capability of the system.

11. The system according to claim 1, characterized in that The sensor includes a dual radar system for enhanced reliability, enabling cross-verification of fall events between radar sensors to reduce the likelihood of false alarms.

12. The system of claim 1, wherein: The communication module adopts wireless communication protocol to enable seamless integration of the system with a smartphone or monitoring device.

13. The system of claim 1, wherein: The system further comprises a power supply unit for supplying power to the sensor, control component and communication module; the power supply unit is combined with an energy-saving component to optimize power consumption.

14. The system of claim 1, wherein: The processor implements a fall detection and prevention algorithm with adjustable sensitivity levels and thresholds to fine tune parameters and minimize false alarms; The processor implements fall detection and prevention algorithms including those based on sudden changes in center of gravity height and irregular movement patterns, including individuals climbing over side rails or standing up in bed; The processor processes the sensor data for a variety of applications, including assessing safety levels and potential falls and implementing response measures.

15. The system according to any one of claims 1 to 14, characterized in that: The processor cooperates with the communication module to trigger an alarm seamlessly; the system is configured with an alarm system, and the processor controls the communication module to trigger the alarm system when an event of a person falling, the possibility of falling, or crossing a virtual boundary is detected, and a notification is immediately sent to a designated person.

16. The system according to any one of claims 2 to 14, characterized in that: The system further comprises a user interface for configuration, parameter adjustment, monitoring of fall detection events, and receiving alarms or notifications; the processor is connected to the user interface via a communication module; The user interface includes a visual feedback component; A user interface is provided on the indoor electrical appliance; the user interface is connected to a central monitoring system for alerting staff and activating a response procedure.

17. A fall detection and prevention method comprising the following steps: Continuously monitor individuals in an indoor environment in real time and obtain data necessary for human fall detection from one or more strategically located sensors; Processing data acquired by sensors in real time; Implementing a fall detection algorithm with adjustable sensitivity levels and thresholds to analyze patterns associated with falls; Identify potential fall events based on the processed data; triggering an alarm system within the communication module upon detection and optional confirmation of a fall; as well as Send notifications to designated personnel in a timely manner.

18. The method according to claim 17, characterized in that The method is performed using the system according to any one of claims 1 to 16; The method further comprises: Post-fall monitoring, which continuously monitors an individual’s health status after a fall event, provides ongoing monitoring and additional notifications when needed, ensuring ongoing safety and care.

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