TH24351U - Bed fall alert system - Google Patents

Abstract

The bed fall alert system consists of measurement devices for analyzing bed falls, including pressure sensors and ultrasonic sensors. The measured values are sent to the system's processing and control unit to analyze the user's status: lying on the bed, sitting, and falling off the bed. Once processed, the information is sent to an online database on the cloud via the internet. If the received status indicates a bed fall, the data is sent to a mobile application on the user's or caregiver's smartphone. The application then sends an alert signal, allowing the caregiver to provide immediate assistance. The alert stops when the user presses the "close" button in the application window after the assistance is complete.

Claims (10)

1. The fall-from-bed alert system consists of a bed (1) with a mattress (2) on top, equipped with at least one sensor to receive pressure from the patient on the bed. This sensor is equipped with at least one ultrasonic sensor (3) installed at the head of the bed (1) and at least one at the foot of the bed (1) to monitor the distance between the sensor and the person lying on the bed, to determine the position of the person sitting or falling off the bed when the patient falls to the floor, and to send the data to the processing unit (200) for the purpose of detecting the patient's fall from the bed. A pressure sensor (4) is installed on the mattress (2) to receive pressure from the patient's body on the mattress (2) and to send the data to the processing unit (200) for the purpose of detecting the patient's sleeping position. An analog-to-digital converter (5) is equipped to receive the patient's sleeping position and position data from the pressure sensor (4) and the ultrasonic sensor (4) and to convert the signal. Analog signals are converted to digital signals before being sent to the processing unit (200). The processing unit (200) processes patient position data received from the pressure sensor (4) and the ultrasonic sensor (3) and sends the data to the application (300), which includes the display screen (301) and the alert system (302). The cloud (6) provides an internet connection to the bed fall alert system to receive bed fall data, store it, and then send the bed fall status information to the caregiver's display screen (301) via the application (300). The display screen (301) shows the results of the patient's position, where the results are sent from the cloud (5) via the internet to be displayed on the application's display screen (301) and send an alert signal when the result is a bed fall. 2. Bed fall alert system, according to claim 1, which is provided with additional stop alert button (303) on the display screen (301) to turn off the alert signal when the caregiver has finished assisting. 3. Bed fall alert system, according to claim 1, where appropriate ultrasonic sensors (3) are provided, installed at the head of the bed (1) 2 units and at each leg of the bed (1) 1 unit, and appropriate pressure sensors (4) are provided, 6 units installed on the surface of the mattress (2). 4. Bed fall alert system, according to claim 1, in which the processor (200) is provided as a microcontroller (Microcontroller Arduino Nano 33 IoT) (111) housed in a box for integrating the connections of an ultrasonic sensor (3), a force sensor (4) in the system and a Breadboard Dedicated Power Module (222) for converting the power to suit each device, using a Finite State Machine (FSM) process (333) to monitor the data received from each sensor. 5. The process of bed fall alert consists of the following steps: a. Start the operation by turning on the system. b. Bed fall detection. The ultrasonic sensor (3) measures the distance between the sensor and the person sleeping, while the pressure sensor (4) measures the pressure caused by the weight of the person sleeping and converts the analog signal into a digital signal. The measured pressure and distance values are then sent to the processing unit (200). c. Processing by the processing unit (200), which has a set of instructions to process the measured data to produce information on the patient's sleeping position and the status of the patient falling from the bed. The data is then sent via the internet signal to be stored on an online database on the cloud system (6). d. Send an alert to the caregiver. When the cloud system (6) detects the status of the patient falling from the bed, it arranges for the alert signal to be sent to the application (300) on the display screen (301) of the smartphone. 6. Bed fall alert process, in accordance with claim 5, which sends an alert to the caregiver, provides an alert signal that appears on the display screen (301) until the caregiver presses the close button on the application screen (300) when the rescue is complete. 7. The bed fall alert process, as per claim 5, which is processed by a processor (200), provides the use of a board housed in a box for integrating the connections of the ultrasonic sensor (3), the force sensor (4) in the system, and a power converter module (222) for converting the power to suit each device, using a Finite State Machine (FSM) process (333) to verify the data received from each sensor. 8. Bed fall alert process under claim 5, which detects bed fall, is provided when the system finds that the pressure sensor (4) cannot detect pressure from the patient on the bed (1) and the ultrasonic sensor (3) detects the patient has fallen from the bed (1) to the floor, it will send the patient's bed fall information to the processing unit (200). 9. Bed fall alert process, in accordance with claim 5, which sends an alert to the caregiver, provides an alert signal that sounds on the smartphone's display screen (301) when the processing results indicate that the patient has fallen from the bed (1), and provides a button to press to turn off the alert signal and reset the system on the display screen (301) when the patient rescue is complete. 10. The procedure for notifying of falls from the bed, as per claim 5, where the patient's fall-from-the-bed status includes lying in bed, sitting, or falling from the bed, any one of these.