CN206792383U - Non-intrusion type sleep monitor mattress - Google Patents
Non-intrusion type sleep monitor mattress Download PDFInfo
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- CN206792383U CN206792383U CN201621410503.7U CN201621410503U CN206792383U CN 206792383 U CN206792383 U CN 206792383U CN 201621410503 U CN201621410503 U CN 201621410503U CN 206792383 U CN206792383 U CN 206792383U
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Abstract
The utility model belongs to sleep monitor technical field, specially a kind of non-intrusion type sleep monitor mattress.The utility model uses two kinds of pliable pressure sensors, and the first sensor is used to make pressure sensing array, whole mattress is uniformly distributed in, for detecting the force-bearing situation in mattress major part region；Second of sensor is distributed in a few place's key positions of mattress, for gather that the breathing of user, body be dynamic and rhythm signal caused by pressure change, and pressure change signal is changed into electric signal；Obtained electric signal is amplified by follow-up hardware, filters, transmit, then feature extraction, pattern recognition process are carried out by PC ends, obtains pressure distribution image and sleep analysis.The structure such as sensor and its electrode all uses ultrathin flexible material in the utility model, and mattress thicknesses are thin, in light weight, are easy to carry about with one；Because it is non-intrusion type, sleep monitor can be carried out in the case where user has no to discover, reduces the natural sleep of user completely, is the strong supplement of residential care.
Description
Technical field
The utility model belongs to sleep monitor technical field, and in particular to a kind of non-intrusion type sleep monitoring device.
Background technology
The goldstandard for clinically carrying out sleep monitor to patient at present is Polysomnography technology, but polysomnogram
Monitoring technology is complicated, operation is inconvenient, and certain psychological burden is caused to patient during application, has a strong impact on its ortho.
Therefore the direction of sleep monitor towards non-intrusion type is developed, and makes every effort to farthest reduction naturally sleep.In current clinic
In practice, full night polysomnogram（PSG）It is the goldstandard of sleep monitor.PSG measurements are typically only capable to the sleep experiments in hospital
Carry out room.PSG includes multi-channal physiological, such as electrocardiogram, electroencephalogram, electromyogram, eye movement tracking and blood oxygen saturation
Degree.The system is directly connected to using many gel electrodes and bulky equipment by numerous wires with human body, and this is to natural
Sleep mode forms very big interference, uncomfortable, inconvenient, therefore user's acceptance is very low.For example, working as patient needs lavatory,
He or she must remove the sensor of all connections one by one, and after returning, then their reconnects, startup, this is a phase
When the process of complexity.The interference to natural sleep is additionally, since, PSG measurement can not represent real sleep state completely, because
This has error based on its diagnosis and treatment.
The sensitive mattress that non-intrusion type sleep monitor can be carried out on the market at present is mainly passed using Embedded pressure
Sensor, the pressure signal of user's body is detected by being embedded in the sensor inside mattress, and carried out according to pressure signal
Body is dynamic to be answered, from bed sensing, breathing detection and heart rate detection, and above-mentioned physiological signal is analyzed and processed, obtains user
Sleep quality.There is article to show that the device for generating human pressure's distributed image can make the form of mattress simultaneously, but city
Sensitive mattress on face can not generate pressure distribution image, can not obtain the position that the sleep posture of user is concentrated with pressure,
Generation pressure distribution image resolution ratio is relatively low in document simultaneously, can only find out posture and the pressure collection middle part of sleep quality roughly
Point；And embedded sensor distribution is more concentrated, the quality of analysis result depends on sensor and the relative position of user,
Therefore the installation of mattress is with using the guidance for needing professional.In recent years, for " weak intrusive mood " or portable sleep monitor
Systematic research achievement, which has had, much to be reported, such as：Intelligent bed pads existing heart alluviation figure（BCG）Monitor ［ 1 ］；Application of force is quick
Type textile cloth, which makes array of pressure sensors and is implanted in sheet, realizes human body attitude change and monitoring of respiration；Intelligent watch or
Wrist strap measurement PPG signals ［ 2 ］；In fingertip monitor peripheral arterial sound ［ 3 ］；Sleep is realized by analyzing cardiopulmonary activity record data
Analytic hierarchy process and classification ［ 4 ］；The apnea ［ 5 ］ occurred in sleep procedure is detected using forehead near infrared technology；Millet,
The wearable device that the enterprises such as Actiwatch, Fitbit release realizes dynamic record ［ 6,7 ］ of body etc. in sleep procedure.But this
A little systems often simply measure the partial parameters needed for sleep analysis, do not provide and meet needed for sleeping disorders clinical diagnosis
Comprehensive data measurement scheme.Do not solved moreover, still suffering from some technological difficulties in above-mentioned various new technologies, such as：The standard heart
The reliable and stable collection of electricity and breath signal, how to improve the robustness of detection under motion artifacts interference, how to eliminate sleep
The different errors introduced of posture.At present, still it can realize that the system that this project is intended researching and developing is " completely non-to daily sleep without research
Intrusive mood ", " suitable comfortable sleeping ", and realize the high reliability and stability of signal acquisition.
[1] Kortelainen, et al. Sleep staging based on signals acquired
through bed sensor. IEEE TITB., 2010.
[2] Sady, et al. Automatic sleep staging from ventilator signals in
non-invasive ventilation. Comput. Biol. Med., 2013.
[3] J. Hedner, et al. Sleep staging based on autonomic signals: a
multi-center validation study. J. Clin. Sleep Med., 2011.
[4] Sleep profiler, available from http://
www.advancedbrainmonitoring.com/sleep-profiler/
[5] PortaNIRS Screening for Sleep Apnea, available from http://
www.portanirs.com/
[6] millet Intelligent bracelet, www.mi.com/shouhuan
[7] Fitbit ONE Wireless Activity and Sleep Tracker. Available from
https://www.fitbit.com.
Associated companies have：Shanghai Mai Dong Medical Treatment Equipment Co., Ltd；Jesse's medical treatment Co., Ltd of the U.S..
The content of the invention
The purpose of this utility model is to provide a kind of reliability height and the good non-intrusion type sleep monitor mattress of stability.
Non-intrusion type sleep monitor mattress provided by the utility model, the form of mattress is made, wherein, using two kinds of flexibilities
Pressure sensor, the first sensor are used to make pressure sensing array, and the first sensor is length of side 0.6-0.9cm pros
The distance between shape flake, each sensor are 0.3-0.45cm, whole mattress are evenly distributed in, for detecting the big portion of mattress
Subregional force-bearing situation；Second of sensor is distributed in a few place's key positions of mattress, such as heart corresponds to bed when people lies low
The position of pad, and heart is on the symmetrical position of backbone, the center of trunk and the human body waist institute on mattress
Corresponding position, for gather that the breathing of user, body be dynamic and rhythm signal caused by pressure change, and these pressure are become
Change signal and change into electric signal.
For the first sensor, according to the pressure size suffered by each sensor, the electric signal of single mapping is changed into,
Electric signal is then converted into the matrix color lump of sensor correspondence position on pressure distribution image, and the colourity of matrix color lump is with pressure
Increase and increase, therefore pressure distribution image can not only obtain the posture of user, the pressure that can also obtain user is concentrated
Part；
Obtained electric signal is amplified by subsequent conditioning circuit and processor, filter, transmitted, then spy is carried out by PC ends
The processing such as extraction, pattern-recognition is levied, obtains pressure distribution image and sleep analysis etc..
The thickness of flexible material is all micron order used by the utility model, and expansibility is extremely strong；According to actual conditions
By adjusting thickness to improve comfort level.
Non-intrusion type sleep monitor mattress provided by the utility model, its structure include：Cushion above and following
Basalis, it is the placed layer of second of pressure sensor, the first array of pressure sensors layer, or second successively that both are middle
The mixed layer of kind pressure sensor and the first array of pressure sensors；In addition, also include：The first array of pressure sensors layer
Upper/lower electrode layer, and the separation layer between two kinds of pressure sensor layers.
In the utility model, cushion, for preventing pressure sensor from directly being contacted with the external world, and to the pressure from human body
Power carries out appropriate buffering.
In the utility model, basalis, for preventing lower electrode from directly being contacted with the external world, and play a protective role.
In the utility model, separation layer, for preventing the structure on upper strata because gravity contacts with pressure sensor layer,
Avoid influenceing the precision of signal.
In the utility model, protective layer is set between pressure sensor layer and corresponding electrode layer, for preventing from pressing
Force snesor contacts with electrode layer produces interference signal.
The non-intrusion type sleep monitor mattress of the utility model design, its electrical schematic diagram are as shown in Figure 4.Also include：With
A kind of sensor（Array of pressure sensors）Related part：Scan round acquisition module, amplifier and filter circuit, Yi Jiyu
The related part of second of sensor：Amplifier and filter circuit；
In addition, the processor of the subsequent conditioning circuit, power module, clock module, memory module, data transmission device, PC
End, digital signal processor etc..The first embedded sensor array of processor control scan round acquisition module gating, to pressure
The scanning of force sensor array signal, the pressure signal of each position of collection human body, signal is by amplifier amplification, filter circuit
Processor is delivered to after filtering；Processor controls second of working sensor, and the electric signal that second of sensor obtains is passed through
Amplifying circuit and filter circuit, are delivered to processor.Processor by built-in analog-digital converter to by amplifying circuit with
And the analog signal after filter circuit processing carries out analog-to-digital conversion, obtains data signal；The data signal that processor will obtain
Memory module is put into, and data signal can be transmitted to PC ends data transmission module in a manner of being wirelessly transferred；Data
Transport module is made up of integrated WIFI module and peripheral circuit；The power module of processor is responsible for the confession of whole circuit system
Electricity, voltage 220V civil powers changed into required for system, including modules such as rectification, voltage stabilizings；The clock module of processor
It is responsible for the SECO of whole circuit system, ensures frequency and sequential that hardware circuit smoothly can be set according to software program
It is operated.
At PC ends, signal is filtered, the pre-treatment such as noise reduction, smooth waveform, then by the signal of All Through The Night on time
Between be sequentially segmented, for example, being one section per the 30-60 seconds, feature extraction is carried out to each segment signal, the feature of extraction includes body
Dynamic feature, respiratory characteristic, rhythm of the heart feature and posture feature；And sleep state is classified according to feature：
First, first step classification is carried out, i.e., feature is moved according to obtained body and all segment signals is classified, be specifically divided into
Two classes：If body, which moves feature, meets corresponding requirement, it is divided into " night clear-headed+shallow sleep " class, is divided into if being unsatisfactory for " fast
Fast REM sleep+deep sleep " class；
Then, second step classification is carried out, i.e., according to respiratory characteristic, heart rate feature and posture feature to existing two class point
Pattern-recognition is not carried out, is further divided into " night regains consciousness ", " shallow sleep ", " deep sleep " and " rapid-eye-movement sleep ", so
The ratio according to shared by four sleep stages carries out sleep analysis, or selection suitable wake-up time etc. afterwards.
Finally monitoring obtained sleep analysis result and being shown in the form of report by cell phone application or PC softwares makes
User, user is helped to improve sleep quality.
The non-intrusion type sleep monitor mattress of the utility model design, answer, sense from bed, exhale except body innervation can be carried out
Detection and heart rate detection are inhaled, and the sleep pose presentation and pressure concentrated part of user can be obtained, and its figure
The resolution ratio of picture, which is compared, improves more than 4 times in document（The directly existing influence pressure-plotting of the sensor arrangement rate of unit area
The resolution ratio of picture, and the sensor arrangement rate in document is 2621/m2, sensor arrangement rate of the present utility model is 5056-
11378/m2）, pressure distribution and the sleep posture of the display user that can be become apparent from；User can be ensured simultaneously
No matter clearly physiological signal and accurate sleep analysis can be obtained in any position of bed；And the present invention it is frivolous, can
Fold, be easy to user oneself to install and use.
Such as postoperative personnel can use the mattress, pressure concentrates on the wound position of operation when preventing from sleeping, and ensures wound
The healing as early as possible of mouth.The elderly can prevent the generation of bedsore using the mattress using pressure warning unit.Its is preferable simultaneously
The analysis of Sleep architecture and the early warning of partial sleep associated conditions can make user obtain further close and protect.
The utility model is combined using flexible sensor array with compliant conductive fabric, and it is micron-sized biography to obtain thickness
Sensor structure, sensor construction can spread all over whole mattress, and sensor or conductive material and flexible fabric are combined closely
High-precision equipment is make use of, therefore sensor more, that precision is higher can be arranged.When user lies on a bed,
High-precision flexible sensor can perceive the physiological signal of human body, and be analyzed by distal end by the sleep quality of user（Sleep
Dormancy structure, sleep posture, pressure concentrate position and with the presence or absence of associated conditions etc.）It is sent to oneself.Wherein distal end analysis should
With the algorithm in newest sleep monitor field, higher precision and arithmetic speed can be obtained.Due to sensor and electrode etc.
All it is made using flexible material, and it is combined with fabric, therefore can folded, clean, is easily installed, carries.
Technique effect：
1st, by the first sensor（Piezoresistance sensor）The array of pressure sensors of making can be generated with compared with high-resolution
The pressure distribution image of rate, but its structure can reduce the quantity of lead as far as possible, so as to reduce the weight of mattress, be easy to make
Make and produce；
2nd, due to can be to second of sensor（Piezoelectric transducer）The physiological signal of collection is screened, selection signal matter
Measure best data to be analyzed, therefore its sleep monitor is more accurate；
3rd, due to the ultrathin flexible material that the structures such as sensor and its electrode all use, therefore mattress thicknesses are thin, in light weight,
It is easy to carry about with one, can apply to a variety of occasions such as family, mechanism；
4th, due to the characteristic of its non-intrusion type, sleep monitor can be carried out in the case where user has no to discover, completely
Reduce the natural sleep of user, it is easier to be accepted, be the strong supplement of residential care.
Brief description of the drawings
The first structure of Fig. 1 non-intrusion type sleep monitor mattresses.
Second of structure of Fig. 2 non-intrusion type sleep monitor mattresses.
Two kinds of pressure sensor mixed structure layer segment schematic diagrames of Fig. 3.
Fig. 4 non-intrusion type sleep monitor mattress schematic diagrams.
Fig. 5 scan round acquisition module schematic diagrames.
Fig. 6 data flowcharts.
The pictorial diagram of Fig. 7 samples.
Fig. 8 human body attitude pressure distribution images.
Embodiment
Non-intrusion type sleep monitor mattress provided by the utility model, it can be designed as two kinds of typical structures.
The first is 9 Rotating fields, is followed successively by from top to bottom：1st layer is cushion, prevent pressure sensor directly with the external world
Contact, and appropriate buffering is carried out to the pressure from human body.The 2nd layer of placed layer for second of pressure sensor, second
Pressure sensor is fixed on the diverse location of placed layer according to design, ensures the normal acquisition of signal.3rd layer is protective layer, main
It is used to prevent second of pressure sensor contacts with electrode layer from producing interference signal.4th layer is upper electrode layer, for gating
The first array of pressure sensors.5th layer is separation layer, for preventing the structure on upper strata due to gravity and pressure sensor
Array contact, influence the precision of signal.6th layer is the first array of pressure sensors layer, fixed substantial amounts of pressure sensor.
7th layer is separation layer, for preventing the structure on upper strata from, because gravity contacts with array of pressure sensors, influenceing the essence of signal
Degree.8th layer is lower electrode layers, for gating the first array of pressure sensors.9th layer is basalis, for preventing lower floor
Electrode directly contacts with the external world, and plays a protective role.The first structure is as shown in Figure 1.
Second of structure is 8 Rotating fields, is followed successively by from top to bottom：1st layer is cushion, prevents that pressure sensor is direct
Contacted with the external world, and appropriate buffering is carried out to the pressure from human body.2nd layer is protective layer, is mainly used in preventing second
Pressure sensor contacts with electrode layer produces interference signal.3rd layer is upper electrode layer, for gating the first pressure sensor
Array.4th layer is separation layer, for preventing the structure on upper strata from, because gravity contacts with array of pressure sensors, influenceing letter
Number precision.5th layer is two kinds of pressure sensor mixed structure layers, and second of pressure sensor colloidal sol of fine strip shape is close
The clearance for insulation being bonded in the first array of pressure sensors, overall structure can be simplified, be easy to the cleaning of other layers to change,
It is bigger than gap elsewhere that the gap of the first pressure sensor of the opening position of second of pressure sensor is distributed with,
It is easy to the bonding of second of pressure sensor, as shown in Figure 3.Because only that the position of second of pressure sensor is being distributed, the
A kind of pressure sensor just use as sparse distribution, if whole mattress is distributed 6 second of pressure sensors, then the
Two kinds of structures decline 2.6 ‰ compared with few 30 the first pressure sensors of the first structure, resolution ratio, have little influence on image essence
Degree.6th layer is separation layer, for preventing the structure on upper strata from, because gravity contacts with array of pressure sensors, influenceing signal
Precision.7th layer is lower electrode layers, for gating the first array of pressure sensors.8th layer is basalis, for preventing
Lower electrode directly contacts with the external world, and plays a protective role.Second of structure is as shown in Figure 2.
By taking the first structure of the present utility model as an example, its schematic diagram is as shown in figure 4, two inframes are that this practicality is new in figure
The hardware components of type, wherein inframe above（Red boxes）For the first array of pressure sensors and its peripheral hardware part, 9
Rotating fields the 4th, 5,6,7,8,9 Rotating fields belong to the inframe；Following inframe（Blue square frame）For second of pressure sensor
And its peripheral hardware part, 9 Rotating fields the 1st, 2,3-tier architecture belong to inframe.
When user is lain on mattress, the first embedded sensor of processor control scan round acquisition module gating
Array, the electric signal of 11378 sensors of whole is passed sequentially through into amplifying circuit and filter circuit, is then sent to place
Manage device.Amplifying circuit is made up of amplifier chip and peripheral electron device, is responsible for amplifying faint voltage signal, in order to
The accurate identification of subsequent conditioning circuit.Filter circuit is made up of amplifier chip and peripheral electron device, forms bandpass filter, is born
Noise that duty introduces 50Hz civil powers and analog circuit etc. is preliminarily filtered, and reduces the intractability of data signal.
Meanwhile processor controls second of sensor continuous firing, the electric signal that second of sensor is obtained is by putting
Big circuit and filter circuit, are then sent to processor.Amplifying circuit and filter circuit that second of sensor is connected with
The amplifying circuit and filter circuit principle of the first sensor are similar, and the chip simply specifically selected is different from electronic device.
By the analog signal after amplifying circuit and filter circuit processing, the analog-digital converter built in processor is utilized
Analog-to-digital conversion is carried out, obtains the data signal of 10, obtained data signal is put into memory module by processor, and can be by number
Word signal is transmitted to PC ends data transmission module in a manner of being wirelessly transferred.Data transmission module is by integrated WIFI module
And peripheral circuit composition.The power module of processor is responsible for the power supply of whole circuit system, and 220V civil powers are changed into system
Required voltage, including modules such as rectification, voltage stabilizings.The clock module of processor is responsible for the sequential control of whole circuit system
System, the frequency that ensure hardware circuit smoothly can set according to software program are operated with sequential.
Scan round acquisition module used by the utility model is as shown in figure 5, the utility model shares force samples point
128*64=8192, the sensor matrices formed for the first sensor of 128 rows 64 row, upper electrode layer have 128
Conductive electrode, Vcc being connected by multiway analog switch, lower electrode layers have 64 conductive electrodes, are grounded by pull down resistor,
Analog-digital converter is connect by multiway analog switch simultaneously.When user is lain on mattress, pressure can by upper electrode, sensor,
Lower electrode closely fits together, and forms a part for circuit loop, can carry out the collection of pressure signal.Scan round
When Acquisition Circuit works, first by controlling the road multiway analog switch of the first order 4 of lower electrode layers, the second level is gated in turn
4 16 road multiway analog switches, then the road multiway analog switch of the 4 of the second level 16 gate each row electrode in turn, gating
In the time of certain row electrode signal, by controlling the road multiway analog switch of the first order 8 of upper electrode floor, the second level is gated in turn
8 16 road multiway analog switches, then the road multiway analog switch of the 8 of the second level 16 gates every a line electrode in turn, and connects
Logical Vcc.Need 8192 gating process cans to collect all sample amplitude when reproduced values altogether, and then form each frame pressure
Distributed image.By the method, collection is scanned for 128*64 matrix sequence, circuit only needs 128+64 electrode,
System only needs an analog-digital converter.
Fig. 6 is the data flowchart of the present invention, and electric signal passes through wherein caused by the first sensor and second of sensor
Cross after the processing such as amplification, the filtering of analog circuit, carry out analog-to-digital conversion, the storage that the data signal after conversion passes through processor
And transmission, be delivered to PC ends be filtered, the pre-treatment such as noise reduction, smooth waveform, it is then that the signal of All Through The Night is temporally suitable
Sequence is segmented, for example, being within every 30 seconds one section, feature extraction is carried out to each segment signal, feature includes body and moves feature, and breathing is special
Sign, rhythm of the heart feature and posture feature.
First, first step classification is carried out, i.e., feature is moved according to obtained body and all segment signals is classified, be specifically divided into
Two classes：If body, which moves feature, meets corresponding requirement, it is divided into " night clear-headed+shallow sleep " class, is divided into if being unsatisfactory for " fast
Fast REM sleep+deep sleep " class；
Then, second step classification is carried out, i.e., according to respiratory characteristic, heart rate feature and posture feature to existing two class point
Pattern-recognition is not carried out, is further divided into " night regains consciousness ", " shallow sleep ", " deep sleep " and " rapid-eye-movement sleep ", so
The ratio according to shared by four sleep stages carries out sleep analysis, or selection suitable wake-up time etc. afterwards.
Finally monitoring obtained sleep analysis result and being shown in the form of report by cell phone application or PC softwares makes
User, user is helped to improve sleep quality.
With reference to selected works：
[1]Liu J J, Xu W, Huang M C, et al. Sleep posture analysis using a
dense pressure sensitive bedsheet[J]. Pervasive and Mobile Computing, 2014,
10: 34-50.
[2]Samy L, Huang M C, Liu J J, et al. Unobtrusive sleep stage
identification using a pressure-sensitive bed sheet[J]. IEEE Sensors Journal,
2014, 14(7): 2092-2101.
[3]Mora G G, Kortelainen J M, Hernández E R P, et al. Evaluation of
pressure bed sensor for automatic SAHS screening[J]. IEEE Transactions on
Instrumentation and Measurement, 2015, 64(7): 1935-1943.
[4]Watanabe K, Watanabe T, Watanabe H, et al. Noninvasive measurement
of heartbeat, respiration, snoring and body movements of a subject in bed via
a pneumatic method[J]. IEEE transactions on biomedical engineering, 2005, 52
(12): 2100-2107.
[5] Borbely et al. Sleep homeostasis and models of sleep regulation.
J. Biol. Rhythms., 14(6), 1999.
[6] Krueger et al. Sleep as a fundamental property of neuronal
assemblies. Nat. Rev. Neurosci., 2008.
[7] R. Stickgold. Sleep-dependent memory consolidation. Nature, 437
(7063): 1272-1278, 2005.
[8] Gami, et al. Daynight pattern of sudden death in obstructive
sleep apnea. N. Engl. J. Med., 2005
[9] E. Tasali, et al. Slow-wave sleep and the risk of type 2 diabetes
in humans. Natl. Acad. Sci., 2008.。
Claims (3)
1. a kind of non-intrusion type sleep monitor mattress, it is characterised in that using two kinds of pliable pressure sensors, the first sensor
For making pressure sensing array, the first sensor is length of side 0.6-0.9cm square sheets shape, between each sensor
Distance be 0.3-0.45cm, whole mattress is evenly distributed in, for detecting the force-bearing situation in mattress major part region；Second
Sensor is distributed in a few place's key positions of mattress, including heart corresponds to the position of mattress when people lies low, and heart is on ridge
The position of column symmetry, the center of trunk and human body waist position corresponding on mattress, are used for gathering
The breathing of person, body be dynamic and rhythm signal caused by pressure change, and these pressure change signals are changed into electric signal.
2. non-intrusion type sleep monitor mattress according to claim 1, it is characterised in that concrete structure includes：Above
Cushion and following basalis, both are middle for the placed layer of second of pressure sensor, the first pressure sensor successively
Array layer, or the mixed layer of second of pressure sensor and the first array of pressure sensors；In addition, also include：The first
Separation layer between the upper/lower electrode layer of array of pressure sensors layer, and two kinds of pressure sensor layers；Wherein：
Cushion is used to prevent pressure sensor from directly contacting with the external world, and appropriate buffering is carried out to the pressure from human body；
Basalis is used to prevent lower electrode from directly contacting with the external world, and plays a protective role；
Separation layer is used to preventing the structure on upper strata from, because gravity contacts with pressure sensor layer, avoiding the essence of influence signal
Degree；
Matcoveredn is set between pressure sensor layer and corresponding electrode layer, for preventing pressure sensor from being connect with electrode layer
Touch and produce interference signal.
3. non-intrusion type sleep monitor mattress according to claim 2, it is characterised in that also include：With the first sensing
Device is the related part of array of pressure sensors：Scan round acquisition module, amplifier and filter circuit, and passed with second
The related part of sensor：Amplifier and filter circuit.
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| CN108078547A (en) * | 2018-01-17 | 2018-05-29 | 成都乐享智家科技有限责任公司 | A kind of monitoring mattress for guarding user's dormant data |
| CN109171315A (en) * | 2018-06-12 | 2019-01-11 | 深圳市格兰莫尔寝室用品有限公司 | Automatically adjust mattress and intelligent bed |
| CN109497766A (en) * | 2018-12-29 | 2019-03-22 | 浙江梦神家居股份有限公司 | It is a kind of monitor conventional sleep data mattress and its control methods |
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| CN112656371A (en) * | 2020-12-12 | 2021-04-16 | 深圳市苏仁智能科技有限公司 | Human body sleep sign detection method and system based on heart rate respiration signals |
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| CN112203581A (en) * | 2018-05-30 | 2021-01-08 | 美梦有限公司 | Monitoring method and buffer structure |
| CN109171315A (en) * | 2018-06-12 | 2019-01-11 | 深圳市格兰莫尔寝室用品有限公司 | Automatically adjust mattress and intelligent bed |
| CN109497766A (en) * | 2018-12-29 | 2019-03-22 | 浙江梦神家居股份有限公司 | It is a kind of monitor conventional sleep data mattress and its control methods |
| WO2020181452A1 (en) * | 2019-03-11 | 2020-09-17 | 北京微动数联科技有限公司 | Signal acquisition sensor array, electronic device, and mattress |
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