CN114557821A - Intelligent medical bed system and monitoring method thereof - Google Patents

Intelligent medical bed system and monitoring method thereof Download PDF

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Publication number
CN114557821A
CN114557821A CN202210191607.7A CN202210191607A CN114557821A CN 114557821 A CN114557821 A CN 114557821A CN 202210191607 A CN202210191607 A CN 202210191607A CN 114557821 A CN114557821 A CN 114557821A
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medical bed
user
data
push rod
state information
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胡亚军
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Foshan Dessena Medical Technology Co ltd
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Foshan Dessena Medical Technology Co ltd
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/002Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame
    • A61G7/015Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame divided into different adjustable sections, e.g. for Gatch position
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/02Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/0205Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/02Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/024Detecting, measuring or recording pulse rate or heart rate
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/08Detecting, measuring or recording devices for evaluating the respiratory organs
    • A61B5/0816Measuring devices for examining respiratory frequency
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/103Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • A61B5/1113Local tracking of patients, e.g. in a hospital or private home
    • A61B5/1115Monitoring leaving of a patient support, e.g. a bed or a wheelchair
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/103Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • A61B5/1116Determining posture transitions
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/48Other medical applications
    • A61B5/4806Sleep evaluation
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/48Other medical applications
    • A61B5/4806Sleep evaluation
    • A61B5/4812Detecting sleep stages or cycles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/48Other medical applications
    • A61B5/4806Sleep evaluation
    • A61B5/4815Sleep quality
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/74Details of notification to user or communication with user or patient ; user input means
    • A61B5/746Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/002Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame
    • A61G7/012Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame raising or lowering of the whole mattress frame
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/05Parts, details or accessories of beds
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/05Parts, details or accessories of beds
    • A61G7/0527Weighing devices

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  • Life Sciences & Earth Sciences (AREA)
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  • Nursing (AREA)
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  • Pulmonology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)

Abstract

The invention provides an intelligent medical bed system and a monitoring method thereof, wherein the medical bed system comprises a medical bed, a physical sign monitoring unit, a push rod unit and a data box, wherein push rod control data of the push rod unit are collected; the operation box is used for acquiring the physical sign signals of the physical sign monitoring unit, performing operation processing and outputting human body physical sign data of a user; acquiring push rod control data, performing operation processing, and outputting medical bed state information; the server is used for storing and logically processing the human body sign data of the user output by the operation box, generating a user body monitoring report and a user behavior state and alarming for abnormity of the user behavior state; and storing the medical bed state information output by the operation box, and giving an alarm when the medical bed state information changes relative to the set posture of the medical bed. The invention can achieve the effects of intelligent nursing, monitoring and medical treatment, and is beneficial to the medical treatment of users.

Description

Intelligent medical bed system and monitoring method thereof
Technical Field
The invention relates to the technical field of medical beds, in particular to an intelligent medical bed system and a monitoring method thereof.
Background
A hospital bed is one of the most important medical devices in a hospital. With the rapid development of science and technology and economy, medical bed equipment is rapidly developed, the existing medical bed has the functions of treatment, rescue and transportation, and has great positive effects on prevention, prevention and treatment of diseases.
The existing medical bed has certain disadvantages when in use:
firstly, the functions are single, the functions are lacked, the comprehensive and timely monitoring of the user cannot be realized, most users directly inform medical care personnel, and the prevention performance is poor;
secondly, it is intelligent poor, can't real-time supervision user's vital sign data, action and the state of medical bed to can't make medical personnel in time learn user's current situation, current action, treatment data and treatment.
The existing medical bed cannot meet the requirements of modern people, and the problems of single function, poor intelligent performance and the like are not improved correspondingly. Therefore, the intelligent design and innovation of the hospital bed are the most concerned by users and caregivers.
Disclosure of Invention
The invention aims to overcome the defects and shortcomings in the prior art and provides an intelligent medical bed system and a monitoring method thereof.
In order to achieve the purpose, the invention is realized by the following technical scheme:
an intelligent medical bed system, which is characterized in that: the method comprises the following steps:
a medical bed;
the physical sign monitoring unit is used for acquiring physical sign signals of a user on the medical bed;
the push rod unit pushes the medical bed to lift;
the data box is used for acquiring push rod control data of the push rod unit;
the operation box is used for controlling the physical sign monitoring unit, acquiring the physical sign signal of the physical sign monitoring unit, performing operation processing and outputting human body physical sign data of a user; acquiring push rod control data, performing operation processing, and outputting medical bed state information;
the server is used for storing and logically processing the human body sign data of the user output by the operation box, generating a user body monitoring report and a user behavior state and alarming for abnormity of the user behavior state; storing the medical bed state information output by the operation box, and alarming when the medical bed state information changes relative to the set posture of the medical bed;
the physical sign monitoring unit, the push rod unit, the data box and the operation box are all arranged on the medical bed; the physical sign monitoring unit is connected with the operation box; the input end of the data box is connected with the push rod unit, and the output end of the data box is connected with the operation box; the operation box is in wireless connection with the server; the server is provided with an API interface, so that a third-party platform can access the server conveniently.
The intelligent medical bed system also comprises a tablet personal computer which is used for setting parameters or threshold values of logic processing and displaying a user body monitoring report, a user behavior state and medical bed state information; the tablet personal computer is connected with the server.
In the above solution, the intelligent medical bed system of the present invention performs operation processing on the data related to the push rod unit and the physical sign signal of the physical sign monitoring unit through the operation unit, and transmits the data to the server in a wireless manner and performs logic processing on the operated data, thereby generating a report. The server can be used for checking and inquiring by a third-party platform, and can also be connected with a tablet personal computer to set and check report parameters and check reports. The invention can comprehensively monitor the human body sign data, the user state behavior and the medical bed state of the user, not only can ensure the body health of the user, but also can be convenient for a caregiver to know the current state, the treatment data and the treatment effect of the user in real time, thereby achieving the effects of intelligent nursing, monitoring and medical treatment and being beneficial to the medical treatment and medical maintenance of the user.
The physical sign monitoring unit is an optical fiber sensor arranged on a back plate of the medical bed; the sign signal is the received light beam quantity of the optical fiber sensor.
The push rod unit comprises a controller, a driver and a plurality of push rods; the controller is connected with the push rod through the driver, and the push rod is connected with the back plate and the foot plate of the medical bed; the controller is connected with the data box.
The intelligent medical bed system also comprises a weighing unit used for weighing and displaying the user on the medical bed; the weighing unit comprises a weighing sensor and a display which are connected with each other, the weighing sensor is arranged on a bed bottom frame of the medical bed and connected with the data box, and the display is arranged on the medical bed.
A monitoring method of an intelligent medical bed system is characterized in that: the method comprises the following steps:
collecting physical sign signals of a user on a medical bed;
weighing and displaying a user on the medical bed;
collecting push rod control data and weighing data for pushing the medical bed to ascend and descend;
acquiring sign signals, performing operation processing, and outputting human body sign data of a user; acquiring push rod control data, performing operation processing, and outputting medical bed state information; acquiring weighing data and outputting user weight information;
storing and logically processing the output human body sign data and the user weight information of the user, generating a user body monitoring report and a user behavior state, and alarming for abnormal user behavior state; and storing the medical bed state information output by the operation box, and giving an alarm when the medical bed state information changes relative to the set posture of the medical bed.
Acquiring physical sign signals of a user on the medical bed by adopting an optical fiber sensor;
the acquiring and operating sign signals refers to: the sign signal is the received light beam quantity of the optical fiber sensor; controlling the emitted light beam quantity of the optical fiber sensor, calculating the ratio of the emitted light beam quantity to the received light beam quantity, and generating human body sign data of a user; the user human body sign data comprises a body movement value, a respiration rate value and a heart rate value.
The user body monitoring report comprises a user heartbeat frequency report, a user breathing frequency report, a user body movement report and a user sleep analysis report;
the generation of the user sleep analysis report comprises the following steps:
dividing the sleep state into four state intervals of waking up, REM, light sleep and deep sleep, and setting a threshold value for the body movement value, the respiration rate value and the heart rate value of each state interval;
for real-time heart rate values and real-time respiration rate values in the time domain [ T0–Tn]Average filtering is performed within the range of (1);
and carrying out interval classification and judgment on the heart rate value and the respiration rate value after average filtering and the real-time body motion value, and generating a sleep analysis report of the user.
The user behavior state comprises a normal behavior state and an out-of-bed behavior state as an abnormal condition;
when the real-time body motion value, the real-time respiration rate value and the real-time heart rate value change simultaneously and reach a set time range, judging that the user is in the current off-bed behavior state, and alarming; otherwise, judging that the user is in a normal behavior state currently.
Comparing the state information of the medical bed with the set posture of the medical bed, judging that the posture of the medical bed is changed by manual operation of a user when the state information of the medical bed is changed, and giving an alarm; otherwise, the state information of the medical bed is judged to be normal.
Compared with the prior art, the invention has the following advantages and beneficial effects: the intelligent medical bed system and the monitoring method thereof can comprehensively monitor the human body sign data, the user state behavior and the medical bed state of the user, not only can ensure the physical health of the user, but also can facilitate a caregiver to know the current state, the treatment data and the treatment effect of the user in real time, achieve the effects of intelligent nursing, monitoring and medical treatment, and are beneficial to the medical treatment and medical maintenance of the user.
Drawings
FIG. 1 is a schematic diagram of the intelligent hospital bed system of the present invention;
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Examples
As shown in fig. 1, the intelligent medical bed system of the present invention includes:
a medical bed;
the physical sign monitoring unit is used for acquiring physical sign signals of a user on the medical bed;
the push rod unit pushes the medical bed to lift;
the weighing unit is used for weighing and displaying a user on the medical bed;
the data box is used for acquiring push rod control data of the push rod unit and weighing data of the weighing unit;
the operation box is used for controlling the physical sign monitoring unit, acquiring the physical sign signal of the physical sign monitoring unit, performing operation processing and outputting human body physical sign data of a user; acquiring push rod control data, performing operation processing, and outputting medical bed state information; acquiring weighing data and outputting user weight information;
the server stores and logically processes the user body sign data and the user weight information output by the operation box, generates a user body monitoring report and a user behavior state, and gives an alarm for the abnormal user behavior state; storing the medical bed state information output by the operation box, and alarming when the medical bed state information changes relative to the set posture of the medical bed;
wherein, sign monitoring unit is connected with the operation box, and the input of data box is connected with push rod unit and weighing unit respectively, and the output and the operation box of data box are connected, operation box and server wireless connection, and the server is provided with the API interface, the third party platform of being convenient for visits.
The intelligent medical bed further comprises a tablet computer which is used for setting parameters or threshold values of logic processing and displaying the body monitoring report of the user, the behavior state of the user and the state information of the medical bed, and the tablet computer is connected with the server.
The physical sign monitoring unit is an optical fiber sensor arranged on a back plate of the medical bed, and the physical sign signal is the received light beam quantity of the optical fiber sensor.
The push rod unit comprises a controller, a driver and a plurality of push rods, wherein the controller is connected with the push rods through the driver, the push rods are connected with a back plate and a foot plate of a medical bed to push the back plate and the foot plate of the medical bed to be folded and lifted, and the controller is connected with a data box.
The weighing unit comprises a weighing sensor and a display which are connected with each other, wherein the weighing sensor is arranged on a bed bottom frame of the medical bed, and the display is arranged on the medical bed.
The monitoring method of the intelligent medical bed comprises the following steps:
collecting physical sign signals of a user on a medical bed;
weighing and displaying a user on the medical bed;
acquiring control data and weighing data of a push rod for pushing a medical bed to lift;
acquiring sign signals, performing operation processing, and outputting human body sign data of a user; acquiring push rod control data, performing operation processing, and outputting medical bed state information; acquiring weighing data and outputting user weight information;
storing and logically processing the output human body sign data and the user weight information of the user, generating a user body monitoring report and a user behavior state, and alarming for abnormal user behavior state; and storing the medical bed state information output by the operation box, and giving an alarm when the medical bed state information changes relative to the set posture of the medical bed.
Specifically, the above-mentioned acquiring and processing the vital sign signal is: the sign signal is the received light beam quantity of the optical fiber sensor; controlling the emitted light beam quantity of the optical fiber sensor, calculating the ratio of the emitted light beam quantity to the received light beam quantity, and generating human body sign data of a user; the user human body sign data comprises a body movement value, a respiration rate value and a heart rate value.
The user body monitoring report comprises a user heartbeat frequency report, a user breathing frequency report, a user body movement report and a user sleep analysis report; wherein the generation of the sleep analysis report of the user comprises:
dividing the sleep state into four state intervals of waking up, REM, light sleep and deep sleep, and setting threshold values for body movement value, respiration rate value and heart rate value of each state interval;
for real-time heart rate values and real-time respiration rate values in the time domain [ T0–Tn]Average filtering is performed within the range of (1);
and carrying out interval classification and judgment on the heart rate value and the respiration rate value after average filtering and the real-time body motion value, and generating a sleep analysis report of the user.
In the monitoring method of the invention, the user behavior state comprises a normal behavior state and an out-of-bed behavior state as an abnormal condition; when the real-time body motion value, the real-time respiration rate value and the real-time heart rate value change simultaneously and reach a set time range, judging that the user is in the current off-bed behavior state, and alarming; otherwise, judging that the user is in a normal behavior state currently.
In the monitoring method, the state information of the medical bed is compared with the set posture of the medical bed, and when the state information of the medical bed is changed, the posture change of the medical bed, which is manually operated by a user, is judged, and an alarm is given; otherwise, the state information of the medical bed is judged to be normal.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.

Claims (10)

1. An intelligent medical bed system, which is characterized in that: the method comprises the following steps:
a medical bed;
the physical sign monitoring unit is used for acquiring physical sign signals of a user on the medical bed;
the push rod unit pushes the medical bed to lift;
the data box is used for acquiring push rod control data of the push rod unit;
the operation box is used for controlling the physical sign monitoring unit, acquiring the physical sign signal of the physical sign monitoring unit, performing operation processing and outputting human body physical sign data of a user; acquiring push rod control data, performing operation processing, and outputting medical bed state information;
the server is used for storing and logically processing the human body sign data of the user output by the operation box, generating a user body monitoring report and a user behavior state and alarming for abnormity of the user behavior state; storing the medical bed state information output by the operation box, and alarming when the medical bed state information changes relative to the set posture of the medical bed;
the physical sign monitoring unit, the push rod unit, the data box and the operation box are all arranged on the medical bed; the physical sign monitoring unit is connected with the operation box; the input end of the data box is connected with the push rod unit, and the output end of the data box is connected with the operation box; the operation box is in wireless connection with the server; the server is provided with an API interface, so that a third-party platform can access the server conveniently.
2. The intelligent medical bed system of claim 1, wherein: the intelligent medical bed system also comprises a tablet personal computer which is used for setting parameters or threshold values of logic processing and displaying a user body monitoring report, a user behavior state and medical bed state information; the tablet personal computer is connected with the server.
3. The intelligent medical bed system of claim 1, wherein: the physical sign monitoring unit is an optical fiber sensor arranged on a back plate of the medical bed; the sign signal is the received light beam quantity of the optical fiber sensor.
4. The intelligent medical bed system of claim 1, wherein: the push rod unit comprises a controller, a driver and a plurality of push rods; the controller is connected with the push rod through the driver, and the push rod is connected with the back plate and the foot plate of the medical bed; the controller is connected with the data box.
5. The intelligent medical bed system of claim 1, wherein: the intelligent medical bed system also comprises a weighing unit used for weighing and displaying the user on the medical bed; the weighing unit comprises a weighing sensor and a display which are connected with each other, the weighing sensor is arranged on a bed bottom frame of the medical bed and connected with the data box, and the display is arranged on the medical bed.
6. A monitoring method of an intelligent medical bed system is characterized in that: the method comprises the following steps:
collecting physical sign signals of a user on a medical bed;
weighing and displaying a user on the medical bed;
collecting push rod control data and weighing data for pushing the medical bed to ascend and descend;
acquiring sign signals, performing operation processing, and outputting human body sign data of a user; acquiring push rod control data, performing operation processing, and outputting medical bed state information; acquiring weighing data and outputting user weight information;
storing and logically processing the output human body sign data and the user weight information of the user, generating a user body monitoring report and a user behavior state, and alarming for abnormal user behavior state; and storing the medical bed state information output by the operation box, and giving an alarm when the medical bed state information changes relative to the set posture of the medical bed.
7. The monitoring method of the intelligent medical bed system according to claim 6, wherein: acquiring physical sign signals of a user on the medical bed by adopting an optical fiber sensor;
the acquiring and operating sign signals refers to: the sign signal is the received light beam quantity of the optical fiber sensor; controlling the emitted light beam quantity of the optical fiber sensor, calculating the ratio of the emitted light beam quantity to the received light beam quantity, and generating human body sign data of a user; the user human body sign data comprises a body movement value, a respiration rate value and a heart rate value.
8. The monitoring method of the intelligent medical bed system according to claim 7, wherein: the user body monitoring report comprises a user heartbeat frequency report, a user breathing frequency report, a user body movement report and a user sleep analysis report;
the generation of the user sleep analysis report comprises the following steps:
dividing the sleep state into four state intervals of waking up, REM, light sleep and deep sleep, and setting a threshold value for the body movement value, the respiration rate value and the heart rate value of each state interval;
for real-time heart rate values and real-time respiration rate values in the time domain [ T0–Tn]Average filtering is performed within the range of (1);
and carrying out interval classification and judgment on the heart rate value and the respiration rate value after average filtering and the real-time body motion value, and generating a sleep analysis report of the user.
9. The monitoring method of the intelligent medical bed system according to claim 7, wherein: the user behavior state comprises a normal behavior state and an out-of-bed behavior state as an abnormal condition;
when the real-time body motion value, the real-time respiration rate value and the real-time heart rate value change simultaneously and reach a set time range, judging that the user is in the current off-bed behavior state, and alarming; otherwise, judging that the user is in a normal behavior state at present.
10. The monitoring method of the intelligent medical bed system according to claim 6, wherein: comparing the state information of the medical bed with the set posture of the medical bed, judging that the posture of the medical bed is changed by manual operation of a user when the state information of the medical bed is changed, and giving an alarm; otherwise, the state information of the medical bed is judged to be normal.
CN202210191607.7A 2022-02-28 2022-02-28 Intelligent medical bed system and monitoring method thereof Pending CN114557821A (en)

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