CN108245144A - A kind of contactless monitoring mattress and monitor system based on Multi-sensor Fusion - Google Patents
A kind of contactless monitoring mattress and monitor system based on Multi-sensor Fusion Download PDFInfo
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- CN108245144A CN108245144A CN201810014367.7A CN201810014367A CN108245144A CN 108245144 A CN108245144 A CN 108245144A CN 201810014367 A CN201810014367 A CN 201810014367A CN 108245144 A CN108245144 A CN 108245144A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, 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
- A61B5/0205—Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/01—Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
- A61B5/6892—Mats
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/746—Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0247—Pressure sensors
Abstract
A kind of contactless monitoring mattress and monitor system based on Multi-sensor Fusion of the present invention includes：Mattress body, signal processing analysis device and ipc monitor device；Infrared thermometer, piezoelectric film sensor and conductive fabric are set in mattress body；Signal processing analysis device includes piezoelectric signal processing module, ECG's data compression module, AD conversion module and arm processor；Arm processor carries out transformed digital signal processing and obtains heart rate, respiratory rate, temperature and electrocardiosignal.Ipc monitor device carries out heart rate, respiratory rate, temperature and electrocardiosignal analysis and obtains patient body action, sleep quality and health condition.The monitoring mattress and monitor system of the present invention can carry out patient uninterrupted monitoring in 24 hours, and send out alarm, the timely processing state of an illness or the unexpected accident from bed of discovery to doctor or family members in situation exception, convenient for making rapid remedial measure.
Description
Technical field
The present invention relates to medical monitoring arts field more particularly to a kind of contactless monitoring based on Multi-sensor Fusion
Mattress and monitor system.
Background technology
At present, people detect sign data and are required for professional medical department greatly, this brings inconvenience to body detection.For
Convenient for voluntarily detecting at home, some people have purchased detecting instrument, but often volume is big, uses cumbersome, price for these instruments
It is high etc., it is cumbersome.And many diseases can only be detected in morbidity to go wrong, and it is small that existing instrument is difficult to realize 24
When monitor sampling processing.In addition to this, in the mechanisms such as hospital, social wellfare home, insane asylum and home for destitute, heart patient,
Mental patient, old man, physical disabilities are very necessary when the vital signs in bed.Doctor, nurse, family members, guardian
Etc. the various physical conditions for needing to know children under guardianship.Furthermore it is unexpected from bed, apnea etc. that children under guardianship include child in family
Situation may inadvertently occur, because it is found that not in time, sue and labour not in time, cause sick children under guardianship, aggravation,
The adverse consequences such as unexpected death.This vital signs pad is small, it is easy to use, can to the electrocardio of user, breathe, sleep
Whether the signs such as dormancy carry out twenty four hours monitoring analysis, can detect user from bed situation and fall.
Invention content
In order to solve the above technical problems, the object of the present invention is to provide a kind of contactless prisons based on Multi-sensor Fusion
Apron pad and monitor system solve the vital sign that the contactless acquisition of twenty four hours includes electrocardio, respiratory rate and the rhythm of the heart
The technical issues of monitor system.
The present invention provides a kind of contactless monitoring mattress based on Multi-sensor Fusion, at mattress body and signal
Manage analytical equipment；
The mattress body is equipped with：
Infrared thermometer, for acquiring human body temperature；
Piezoelectric film sensor, for faint deformation caused by human heartbeat's vibrations and breathing fluctuating to be converted to electric current
Signal；
Electronic fabric forms capacity effect as capacitive coupling electrode and human body and generates first voltage signal；
The signal processing analysis device includes：
Piezoelectric signal processing module is connected with the piezoelectric film sensor and processing acquisition second is carried out to current signal
Voltage signal；
ECG's data compression module, being connected with the electronic fabric is amplified first voltage signal and correction process
Obtain tertiary voltage signal；
A/D convertor circuit is connected with piezoelectric signal processing module and ECG's data compression module believes second voltage respectively
Number and tertiary voltage signal be converted to corresponding digital signal；
Arm processor is connected with A/D convertor circuit and infrared thermometer, to digital signal carry out analysis obtain heart rate,
Respiratory rate, temperature and electrocardiosignal.
In the contactless monitoring mattress based on Multi-sensor Fusion of the present invention：
The infrared thermometer is arranged on the neck position corresponded on mattress when human body lies low；
The piezoelectric film sensor is laid on the pulmonary position corresponded on mattress when human body lies low；
The electronic fabric includes the first fabric and the second fabric to form the two of capacitor pole plates, the first fabric and the
Two fabrics are separately positioned on above and below the heart corresponded on mattress when human body lies low.
In the contactless monitoring mattress based on Multi-sensor Fusion of the present invention, the piezoelectric signal processing module packet
It includes：The amplifying circuit and 50Hz power frequencies of sequentially connected charge amplifying circuit, high-pass filtering circuit, level-one are adjustable amplification factor are fallen into
Wave circuit；
Charge amplifying circuit is used to current signal converting voltage signal；High-pass filtering circuit is used to carry out voltage signal
Filtering process；The amplifying circuit of level-one is adjustable amplification factor to filtered voltage signal for being amplified processing；50Hz works
Frequency trap circuit is used to remove divided by obtain second voltage signal by 50HZ frequency contents in voltage signal.
In the contactless monitoring mattress based on Multi-sensor Fusion of the present invention, the 50Hz notch filters circuit packet
UAF42 chips and corresponding resistor network are included, with the Hz noise that piezoelectric film sensor is inhibited to be brought in measuring.
In the contactless monitoring mattress based on Multi-sensor Fusion of the present invention, the ECG's data compression module packet
Include level-one amplifying circuit and baseline correction circuit；
The level-one amplifying circuit is used to be amplified processing to first voltage signal；Baseline correction circuit further filters out
Static electricity on human body interferes, and muscle tremors, human body anxiety, breathing is inhibited to tremble caused baseline drift to obtain tertiary voltage signal.
In the contactless monitoring mattress based on Multi-sensor Fusion of the present invention, the signal processing analysis device is set
There is the display unit for being used to show heart rate, respiratory rate, temperature and electrocardiosignal being connected with the arm processor.
The present invention also provides a kind of contactless monitor system based on Multi-sensor Fusion, which includes：Above-mentioned
Mattress and ipc monitor device are guarded, the ipc monitor device is connected with the arm processor of the monitoring mattress, uses
Patient body action, sleep quality and healthy feelings are obtained in carrying out analysis to heart rate, respiratory rate, temperature and electrocardiosignal
Condition.
The present invention the contactless monitor system based on Multi-sensor Fusion in, the system also includes with it is described on
The warning device that position machine monitoring device is connected.
The present invention the contactless monitor system based on Multi-sensor Fusion in, the system also includes with it is described on
What position machine monitoring device was connected is used to send the wireless communication module of alarming short message to family members.
A kind of non-contact vital sign monitoring mattress based on Multi-sensor Fusion of the present invention, by using No.1 electricity
Sub- fabric and No. two electronic fabrics acquisition human ecg signals, piezoelectric film sensor is by the respiratory cycle the features of sex physiology of human body
Be converted to cyclical physiological characteristic signal, infrared sensor acquisition temperature signals, the real-time every life entity for monitoring children under guardianship
Sign, judges its posture state, and send out alarm to doctor, nurse, family members in situation exception by various signals, so as to
The timely processing state of an illness finds the unexpected accident from bed, convenient for making rapid remedial measure.
Description of the drawings
Fig. 1 is the schematic diagram of the mattress body of the contactless monitoring mattress based on Multi-sensor Fusion of the present invention；
Fig. 2 is the structure diagram of the contactless monitoring mattress based on Multi-sensor Fusion of the present invention；
Fig. 3 is the structure diagram of the piezoelectric signal processing module of the present invention.
Fig. 4 is the structure diagram of the ECG's data compression module of the present invention.
Fig. 5 is the structure diagram of the contactless monitor system based on Multi-sensor Fusion of the present invention.
Specific embodiment
A kind of contactless monitoring mattress based on Multi-sensor Fusion of the invention as shown in Figures 1 to 4, including mattress
Ontology 1 and signal processing analysis device.
Mattress body 1 is equipped with：Infrared thermometer 2, piezoelectric film sensor 3, electronic fabric 4.
Infrared thermometer 2 is arranged on the neck position corresponded on mattress when human body lies low for acquiring human body temperature.Piezoelectricity
Faint deformation caused by thin film sensor 3 is used to shake human heartbeat and breathing rises and falls is converted to current signal, is laid on
Pulmonary position when human body lies low is corresponded on mattress.Electronic fabric 4 forms capacity effect production as capacitive coupling electrode and human body
Raw first voltage signal, the electronic fabric 4 includes the first fabric 41 and the second fabric 42 forms two pole plates of capacitor, the
One fabric 41 and the second fabric 42 are separately positioned on above and below the heart corresponded on mattress when human body lies low.
Signal processing analysis device is used to acquire the signal of mattress body detection, specifically includes：Piezoelectric signal processing module
5th, ECG's data compression module 6, A/D convertor circuit 7 and arm processor 8.
Current signal is carried out as shown in figure 3, piezoelectric signal processing module 5 is connected with the piezoelectric film sensor 3
Processing obtains second voltage signal.Piezoelectric signal processing module 5 includes：Sequentially connected charge amplifying circuit 51, high-pass filtering
Circuit 52, level-one the are adjustable amplifying circuit 53 of amplification factor and 50Hz notch filters circuit 54.It can export ± 12V analog telecommunications
Number, signal strength can clearly reflect the piezoelectric film sensor 3 being connected with piezoelectric signal processing module 5 for people on it
Jump faint deformation caused by vibrations and breathing fluctuating in body-centered.
By the charge amplifying circuit 51 and piezoelectricity of the capacitive feedback type that operational amplifier and corresponding resistor capacity cell are formed
Thin film sensor 3 is connected, for current signal to be converted into voltage signal；High-pass filtering circuit 52 be used for voltage signal into
Row filtering process prevents the signal of below 0.01Hz；The amplifying circuit 53 of level-one is adjustable amplification factor is set using AD620 chips
Meter, for being amplified processing to filtered voltage signal, these three circuits can remove the influence of baseline drift, filtering useless
Signal is amplified to faint heart impact signal with breathing fluctuating signal the requirement of suitable A/D conversions.Finally use UAF42 cores
50HZ frequency contents in voltage signal are gone divided by obtained by the 50Hz notch filters circuit 54 that piece coordinates corresponding resistor network to be formed
Second voltage signal is obtained, with the Hz noise that piezoelectric film sensor 3 is inhibited to be brought in measuring.
First voltage signal is put as shown in figure 4, ECG's data compression module 6 is connected with the electronic fabric 4
Big and correction process obtains tertiary voltage signal.ECG's data compression module 6 includes level-one amplifying circuit 61 and baseline correction electricity
Road 62.The level-one amplifying circuit 61 to first voltage signal for being amplified processing, by the way of Differential Input, inhibits
Common-mode signal amplifies difference mode signal, improves common-mode rejection ratio；Baseline correction circuit 62 further filters out static electricity on human body's interference, suppression
Baseline drift caused by muscle tremors processed, human body are nervous, breathing is trembled is to obtain tertiary voltage signal.
A/D convertor circuit 7 is connected with piezoelectric signal processing module 5 and ECG's data compression module 6 by second voltage respectively
Signal and tertiary voltage signal are converted to corresponding digital signal.
Arm processor 8 is connected with A/D convertor circuit 7 and infrared thermometer 2, and analysis is carried out to digital signal and obtains the heart
Rate, respiratory rate, temperature and electrocardiosignal.
Further, signal processing analysis device is used to show heart rate, exhale equipped with what is with the arm processor 8 be connected
The display unit 9 of suction rate, temperature and electrocardiosignal.
As shown in figure 5, the present invention also provides a kind of contactless monitor system based on Multi-sensor Fusion, including above-mentioned
Monitoring mattress and ipc monitor device 10.8 phase of arm processor of the ipc monitor device 10 and the monitoring mattress
Connection, for heart rate, respiratory rate, temperature and electrocardiosignal carry out analysis obtain patient body action, sleep quality and
Health condition.The structure of monitoring mattress repeats no more.
Further, monitor system further includes the warning device 11 being connected with the ipc monitor device 10.
Further, monitor system further include be connected with the ipc monitor device 10 be used for family members send report
The wireless communication module 12 of alert short message.
A kind of course of work of contactless monitor system based on Multi-sensor Fusion of the present invention is as follows：
First, synchronous signal of the continuous acquisition from the first fabric 41 and the second fabric 42, from piezoelectric film sensor 3
The breathing fluctuating signal of acquisition and heartbeat vibration signal, the temperature signals acquired from infrared thermometer 2.Then, pass through piezoelectricity
The signal that signal processing module 5, ECG's data compression module 6, A/D convertor circuit 7 acquire each sensor is handled, ARM
Processor 8 again by the digital signal obtained after processing carry out analysis obtain the patient cyclical physiological characteristic signal include the heart
Rate, respiratory rate, temperature and electrocardiosignal.Finally, heart rate, respiratory rate, temperature and electrocardio are believed by Radio Transmission Technology
Number be sent to host computer towel monitoring device 10 carry out storage and further analysis with obtain patient body action, sleep quality and
Health condition.
When human body respiration suspends, it can significantly observe that heart rate and electrocardio still have, warning device 11 can be passed through at this time
Carry out alarm；When electrocardiosignal disappearance, larger signal fluctuation, subsequent signal are collected along with piezoelectric film sensor 3
During disappearance, human body is can determine whether at this time voluntarily from bed, while show and retain every vital sign of human body.
Ipc monitor device 10 can also analyze the electrocardiosignal that the processing of arm processor 8 obtains, and analyze the electrocardio
P waves, QRS complex, T waves represented by signal judge the problems such as subject is with the presence or absence of tachycardia, cardiac arrhythmia, can be with
Obtain the heart rate of subject.
The present invention acquires human body physical sign signal respectively using piezoelectric film sensor 3 and electronic fabric 4, when piezoelectric membrane passes
After the acquisition failure of sensor 3, the electrocardiosignal obtained can be still acquired according to electronic fabric 4 and obtains Heart Rate；It is knitted using electronics
After the capacitive coupling acquisition method failure of object 4, heart rate can be still obtained according to 3 acquisition method of piezoelectric film sensor, and can basis
The acquisition method of piezoelectric film sensor 3 obtains whether patient has limb action, judges the capacitive coupling acquisition side of electronic fabric 4
Whether the signal that method obtains is effective, so as to be continued reliably to monitor.
The present invention is using two-way electronic fabric and piezoelectric film sensor acquisition human cyclin physiology sign, the periodicity
Physiology sign includes but not limited to electrocardio, breathing, heart rate, physical activity, sleep quality.When human body leaves sensor sensing area
When, the physiology sign of departure process can be acquired, so as to differentiate whether action of the human body from bed be normal, and unusual condition is reported
It is alert.After human body leaves sensor sensing area, monitor system break-off.
At least there are advantages below for the monitoring mattress and monitor system of the present invention：
1. contactless monitoring：Patient does not need to wear anything；
2. without manual call, whether system can be with automatic identification patient from bed；
3. there is good adaptability with human body as sensor using flexible electronic fabric, piezoelectric membrane etc.；
4. acquisition that can be contactless and display electrocardiosignal；
5. piezoelectric film sensor can acquire breathing fluctuating signal and heartbeat vibration signal simultaneously；
6. multiple sensors mutually merge use, the signal for making acquisition is more accurate；
7. signal processing analysis device is more tight accurate, real vital sign can be more accorded with；
8. identifying the state of human body by monitoring physiology sign, object (clothes or pillow etc.) can be excluded to monitor system
False alarm.
The foregoing is merely presently preferred embodiments of the present invention, the thought being not intended to limit the invention, all the present invention's
Within spirit and principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of contactless monitoring mattress based on Multi-sensor Fusion, which is characterized in that at mattress body and signal
Manage analytical equipment；
The mattress body is equipped with：
Infrared thermometer, for acquiring human body temperature；
Piezoelectric film sensor, for faint deformation caused by human heartbeat's vibrations and breathing fluctuating to be converted to electric current letter
Number；
Electronic fabric forms capacity effect as capacitive coupling electrode and human body and generates first voltage signal；
The signal processing analysis device includes：
Piezoelectric signal processing module is connected with the piezoelectric film sensor and processing acquisition second voltage is carried out to current signal
Signal；
ECG's data compression module, be connected with the electronic fabric first voltage signal is amplified and correction process obtain
Tertiary voltage signal；
A/D convertor circuit, be connected with piezoelectric signal processing module and ECG's data compression module respectively by second voltage signal and
Tertiary voltage signal is converted to corresponding digital signal；
Arm processor is connected with A/D convertor circuit and infrared thermometer, and analysis is carried out to digital signal and obtains heart rate, breathing
Rate, temperature and electrocardiosignal.
2. the contactless monitoring mattress based on Multi-sensor Fusion as described in claim 1, it is characterised in that：
The infrared thermometer is arranged on the neck position corresponded on mattress when human body lies low；
The piezoelectric film sensor is laid on the pulmonary position corresponded on mattress when human body lies low；
The electronic fabric includes the first fabric and the second fabric to form the two of capacitor pole plates, and the first fabric and second is knitted
Object is separately positioned on above and below the heart corresponded on mattress when human body lies low.
3. the contactless monitoring mattress based on Multi-sensor Fusion as described in claim 1, which is characterized in that the piezoelectricity
Signal processing module includes：The amplification electricity of sequentially connected charge amplifying circuit, high-pass filtering circuit, level-one are adjustable amplification factor
Road and 50Hz notch filter circuits；
Charge amplifying circuit is used to current signal converting voltage signal；High-pass filtering circuit is used to be filtered voltage signal
Processing；The amplifying circuit of level-one is adjustable amplification factor to filtered voltage signal for being amplified processing；50Hz power frequencies are fallen into
Wave circuit is used to remove divided by obtain second voltage signal by 50HZ frequency contents in voltage signal.
4. the contactless monitoring mattress based on Multi-sensor Fusion as claimed in claim 3, which is characterized in that the 50Hz
Notch filter circuit includes UAF42 chips and corresponding resistor network, with the work that piezoelectric film sensor is inhibited to be brought in measuring
Frequency interferes.
5. the contactless monitoring mattress based on Multi-sensor Fusion as described in claim 1, which is characterized in that the electrocardio
Signal processing module includes level-one amplifying circuit and baseline correction circuit；The level-one amplifying circuit is used for first voltage signal
It is amplified processing；Baseline correction circuit further filters out static electricity on human body's interference, and muscle tremors, human body anxiety, breathing is inhibited to quiver
Caused baseline drift is trembled to obtain tertiary voltage signal.
6. the contactless monitoring mattress based on Multi-sensor Fusion as described in claim 1, which is characterized in that the signal
Processing analytical equipment be additionally provided be connected with the arm processor for showing heart rate, respiratory rate, temperature and electrocardiosignal
Display unit.
7. a kind of contactless monitor system based on Multi-sensor Fusion, which is characterized in that the system includes：Claim 1
To the monitoring mattress and ipc monitor device described in any one of 6, the ipc monitor device and the monitoring mattress
Arm processor is connected, and obtains patient body action for carrying out analysis to heart rate, respiratory rate, temperature and electrocardiosignal, sleeps
Dormancy situation and health condition.
8. the contactless monitor system based on Multi-sensor Fusion as claimed in claim 7, which is characterized in that the system
Further include the warning device being connected with the ipc monitor device.
9. the contactless monitor system based on Multi-sensor Fusion as claimed in claim 7, which is characterized in that the system
Further include the wireless communication module for being used to send alarming short message to family members being connected with the ipc monitor device.
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| CN201810014367.7A CN108245144A (en) | 2018-01-08 | 2018-01-08 | A kind of contactless monitoring mattress and monitor system based on Multi-sensor Fusion |
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| CN201810014367.7A CN108245144A (en) | 2018-01-08 | 2018-01-08 | A kind of contactless monitoring mattress and monitor system based on Multi-sensor Fusion |
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| CN109211409A (en) * | 2018-09-27 | 2019-01-15 | 中国医学科学院北京协和医院 | Hospital bed monitors system |
| CN109350017A (en) * | 2018-12-13 | 2019-02-19 | 温州医科大学 | A kind of life physical sign monitoring device and method based on multisensor array |
| CN109620176A (en) * | 2018-12-05 | 2019-04-16 | 广东工业大学 | A kind of intelligent sleep monitoring method and device |
| CN109757926A (en) * | 2018-11-22 | 2019-05-17 | 浙江想能云软件股份有限公司 | The hardness adjusting method and device of intelligent mattress |
| CN112972154A (en) * | 2018-12-27 | 2021-06-18 | 艾感科技(广东)有限公司 | Knocking signal based early warning method |
| CN113558628A (en) * | 2021-07-20 | 2021-10-29 | 和也健康科技有限公司 | Intelligent monitoring mattress |
| CN113616171A (en) * | 2021-07-13 | 2021-11-09 | 上海电气智能康复医疗科技有限公司 | Monitoring system for sensing heart rate and breathing body movement |
| CN114081453A (en) * | 2021-11-24 | 2022-02-25 | 重庆城银科技股份有限公司 | Patient state monitoring device and method based on online monitoring technology |
| CN114869255A (en) * | 2022-04-28 | 2022-08-09 | 杭州师范大学钱江学院 | Non-contact vital sign monitoring system |
| CN114903448A (en) * | 2022-05-07 | 2022-08-16 | 广州和普乐健康科技有限公司 | Sleep respiration monitoring device and sleep respiration monitoring method |
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| CN113616171A (en) * | 2021-07-13 | 2021-11-09 | 上海电气智能康复医疗科技有限公司 | Monitoring system for sensing heart rate and breathing body movement |
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| CN114081453A (en) * | 2021-11-24 | 2022-02-25 | 重庆城银科技股份有限公司 | Patient state monitoring device and method based on online monitoring technology |
| CN114869255A (en) * | 2022-04-28 | 2022-08-09 | 杭州师范大学钱江学院 | Non-contact vital sign monitoring system |
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