CN103142219A - Unrestraint type vital sign monitoring mattress - Google Patents
Unrestraint type vital sign monitoring mattress Download PDFInfo
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- CN103142219A CN103142219A CN2013101065969A CN201310106596A CN103142219A CN 103142219 A CN103142219 A CN 103142219A CN 2013101065969 A CN2013101065969 A CN 2013101065969A CN 201310106596 A CN201310106596 A CN 201310106596A CN 103142219 A CN103142219 A CN 103142219A
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Abstract
The invention relates to an unrestraint type vital sign monitoring mattress. The unrestraint type vital sign monitoring mattress comprises a mattress body, wherein the mattress body is internally provided with a sign monitoring sensor for monitoring vital sign information; the sign monitoring sensor is electrically connected with an information analyzing and extracting circuit; and the information analyzing and extracting circuit identifies and stores corresponding heart rates, respiratory rates, body motion recognition and on-bed and/or off-bed states according to a monitoring signal of the sign monitoring sensor. According to the unrestraint type vital sign monitoring mattress disclosed by the invention, a human body to be monitored directly lies on the mattress body and the sign information of the human body to be monitored is detected by the sign monitoring sensor in the mattress body, so as to realize the monitoring of unrestraint type vital signs. The information of the sign monitoring sensor is analyzed through the information analyzing and extracting circuit so that the heart rates, the respiratory rates, the body motion state and the on-bed and/or off-bed states of the human body to be monitored are obtained; storage and transmission of monitoring state parameters can be realized; and the unrestraint type vital sign monitoring mattress is compact in structure, low in use cost, convenient to use, safe and reliable.
Description
Technical field
The present invention relates to a kind of monitoring mattress, especially a kind of without constraint formula vital sign monitoring mattress, belong to the technical field of signal monitoring.
Background technology
The Internet of Things cognition technology is one of gateway of internet of things key technology, and along with the large-scale application of following Internet of Things, sensor will become main data acquisition equipment carrying person, and therefore, the maturation of sensor device will directly affect the development of Internet of Things industry.Sensor generally is comprised of sensing element, conversion element, change-over circuit three parts: sensing element---effect is that direct feeling is measured, and output and the measured element that becomes to determine a certain physical quantity of relation; Conversion element---effect is to be output as input with sensing element, and this input is converted to circuit parameter; Change-over circuit---effect is that the foregoing circuit Parameters Transformation that will access becomes electric weight output.If measured enough large, the output of sensor has higher signal to noise ratio, and is can perception measured by output; If measured very faint, the signal to noise ratio of the output of sensor is very little, is difficult to perception by output measured, and at this moment sensor does not have the effect of sensing.If the output signal that monitoring and the recognition technology of small-signal is applied to the detection and Identification sensor, although measured very faint, it is measured that sensor also can perception.
The most occupation modes that adopt contiguity constraint of existing vital sign detecting instrument, the monitoring use cost is high, has hindered the promotion and application to vital sign equipment.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of and monitor mattress without constraint formula vital sign, vital sign parameter can effectively be monitored and read to its compact conformation, and use cost is low, and is easy to use, safe and reliable.
According to technical scheme provided by the invention, described without constraint vital sign monitoring mattress, comprise the mattress body; Be provided with the sign monitoring sensor for the monitoring vital sign information in described mattress body, described sign monitoring sensor is electrically connected to information analysis extraction circuit, and the moving identification of heart rate, breathing rate, body that correspondence was identified and stored to information analysis extraction circuit according to the monitor signal of sign monitoring sensor reaches at bed and/or from the bed state.
Described sign monitoring sensor comprises and is distributed in the intrinsic piezoelectric cable of mattress.
Described information analysis extracts circuit and comprises microcontroller, described microcontroller is connected with the outfan of sign monitoring sensor by operation amplifier and analog to digital conversion circuit, the moving identification of heart rate, breathing rate, body that microcontroller identification is corresponding and at bed and/or from the bed state, and with the moving identification of heart rate, breathing rate, body of described identification and store in the SD card at bed and/or from the bed state.
Described microcontroller is connected with ethernet controller, and the heart rate that microcontroller will be identified and/or store by ethernet controller, breathing rate, the moving identification of body reach at bed and/or from the bed state transfer to Ethernet.
Described microcontroller is connected with buzzer, and the heart rate of microcontroller identification, breathing rate, the moving identification of body reach and do not mate at bed and/or from bed state and canned data, and when surpassing warning value, microcontroller is reported to the police by buzzer.
Described microcontroller comprises Port Multiplier, the outfan of described Port Multiplier and regulator, the moving identification module of body and at bed/be connected from bed state recognition module, the regulator is connected with the heart rate identification module by the amplification filtering module, and described heart rate identification module is connected with the breathing rate identification module.
Advantage of the present invention: human body to be monitored directly lies on the mattress body, and the intrinsic sign monitoring sensor of mattress detects the sign information of human body to be monitored, namely realizes the monitoring without the constraint vital sign.Extracting circuit by information analysis analyzes the information of sign monitoring sensor, thereby the moving state of the heart rate, breathing rate, body that obtain human body to be monitored, at bed/from the bed state, and can realize storage and the transmission of monitoring state parameter, compact conformation, use cost is low, easy to use, safe and reliable.
Description of drawings
Fig. 1 is the structured flowchart that information analysis of the present invention extracts circuit.
Fig. 2 is structured flowchart of the present invention.
Fig. 3 is the structured flowchart of microcontroller of the present invention.
Fig. 4 is the structured flowchart of heart rate identification of the present invention.
description of reference numerals: 1-operation amplifier and analog to digital conversion circuit, the 2-microcontroller, the 3-buzzer, the 4-ethernet controller, the 5-SD card, 6-sign monitoring sensor, the 7-information analysis extracts circuit, 8-vital sign historical data statistical analysis module, the 9-Port Multiplier, the 10-regulator, 11-amplification filtering module, 12-heart rate identification module, 13-breathing rate identification module, the 14-body moves identification module, 15-is at bed/from bed state recognition module, the 16-comparison module, 17-locking module and 18-decision-making module.
The specific embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As shown in Figure 2: in order conveniently to realize the monitoring to human body vital sign, the present invention includes the mattress body; , be provided with the sign monitoring sensor 6 for the monitoring vital sign information in described mattress body, described sign monitoring sensor 6 is electrically connected to information analysis extraction circuit 7, and the moving identification of heart rate, breathing rate, body that correspondence was identified and stored to information analysis extraction circuit 7 according to the monitor signal of sign monitoring sensor 6 reaches at bed and/or from the bed state.
Particularly, in the embodiment of the present invention, sign monitoring sensor 6 adopts piezoelectric cable, and described piezoelectric cable is distributed in the mattress body, and described mattress body can adopt the conventional mattress fabric, and piezoelectric cable and mattress body form the piezoelectricity mattress jointly.Piezoelectric cable is a kind of piezoelectric film sensor, adopts coaxial design, adopts between layers insulant, and is compressed or when stretching when piezoelectric cable, piezoelectric effect can occur, thereby produce electric charge or the voltage signal that is proportional to pressure.Piezoelectric cable can reach the effect of self-shileding owing to adopting coaxial design, can be applied under the environment of high electromagnetic interference; The coaxial combination technology of employing standard, it can be made into passive coaxial cable; Because the intensity of itself is good, can be applied in heavily to block with the axle of truck and counts; As the sensor of linearity, it can be applied in large-area monitoring.Information analysis extracts circuit 7 can carry out analyzing and processing to the monitor signal of sign monitoring sensor 6, and form vital sign historical data statistical analysis module 8 after storage, can inquire about and review the historical data of monitoring by vital sign historical data statistical analysis module 8.In the embodiment of the present invention, the moving identification of described body refers to action and the frequency of personnel to be monitored stirring on the mattress body etc.
As shown in Figure 1: the structured flowchart that extracts circuit 7 for information analysis of the present invention.Described information analysis extracts circuit 7 and comprises microcontroller 2, described microcontroller 2 is connected with the outfan of sign monitoring sensor 6 by operation amplifier and analog to digital conversion circuit 1, the moving identification of heart rate, breathing rate, body that microcontroller 2 identification is corresponding and at bed and/or from the bed state, and with the moving identification of heart rate, breathing rate, body of described identification and store in SD card 5 at bed and/or from the bed state.Described operation amplifier and analog to digital conversion circuit 1 comprise operational amplifier and analog-to-digital conversion module, and described operation amplifier and analog to digital conversion circuit 1 can extremely can drive the state of microcontroller 2 with the small-signal amplification filtering of sign monitoring sensor 6 outputs.
Described microcontroller 2 is connected with ethernet controller 4, and the heart rate that microcontroller 2 will be identified and/or store by ethernet controller 4, breathing rate, the moving identification of body reach at bed and/or from the bed state transfer to Ethernet.Be that microcontroller 2 is transferred to remote control terminal by ethernet controller 4 with relevant status data, realize long-range monitoring.
Described microcontroller 2 is connected with buzzer 3, the heart rate of microcontroller 2 identification, breathing rate, the moving identification of body and when not mating at bed and/or from bed state and canned data, surpass (when surpassing the warning value of microcontroller 2 interior settings) when setting restriction, microcontroller 2 is reported to the police by buzzer 3.In the embodiment of the present invention, can be in the parameter of the heart rate of the interior pre-stored relevant human body to be monitored of microcontroller 2, breathing rate etc., when the signal of sign monitoring sensor 6 monitoring and the interior pre-stored parameter of microcontroller 2 are not mated, namely pilot signal appears and stored parameter has relatively large deviation, at this moment, microcontroller 2 can be reported to the police by buzzer 3, to remind relevant monitoring personnel.Simultaneously, microcontroller 2 signal that the sign monitoring sensor 6 of identification can be detected shows output by display screen or display instrument.
Described microcontroller 2 comprises Port Multiplier 9, the outfan of described Port Multiplier 9 and regulator 10, the moving identification module 14 of body and at bed/be connected from bed state recognition module 15, regulator 10 is connected with heart rate identification module 12 by amplification filtering module 11, and described heart rate identification module 12 is connected with breathing rate identification module 13.
Particularly, Port Multiplier 9 is assigned to respectively the moving identification module 14 in regulator 10, body with the monitor signal after amplification filtering and at bed/in bed state recognition module 15.
For piezoelectric, the frequency of breathing is crossed slow and is difficult to be detected, and the breathing rate for the 13 monitoring outputs of breathing rate identification module during the invention process, according to the relation of heart rate and breathing rate, can calculate breathing rate after having obtained heart rate.
In the moving identification module 14 of body, owing to having pressure on the mattress body, the moving piezoelectric signal of body reaches tens of millivolts, and the moving threshold value of body can be set, and can be judged to be a body moving when piezoelectric signal in a certain period surpasses this threshold value.
At bed/in bed state recognition module 15, from being transformed at the bed state from the bed state, piezoelectric signal can be converted to the positive pulse that produces several tens of millivolts of amplitudes from without the heart rate small-signal, then changes and have by the heart rate small-signal; And from being transformed at the bed state from the bed state, piezoelectric signal can be converted to the negative pulse that produces several tens of millivolts of amplitudes from the heart rate small-signal is arranged, then transformation has or not the heart rate small-signal.Can be according to the having or not of heart rate signal in small-signal, and the change procedure such as positive and negative of pulse signal, judgement detected this at bed or from the bed state.
As shown in Figure 4: the structured flowchart of heart rate identification module 12.Described heart rate identification module 12 comprises comparison module 16, locking module 17 and decision-making module 18, during the invention process, mainly uses the sweep-frequency Békésy audiometer lock-in amplifier to complete, and is implemented as follows:
Comparison module 16 namely adopts traditional threshold value comparison method to detect pulse signal.Specific practice is, get nearest a period of time several peak value of pulses average pact half as threshold value.Signal after amplification filtering is carried out threshold value differentiate, surpass threshold value person and be judged to be the heart beating pulse.This method Simple fast, but it is larger affected by environmental disturbances, and identification error is higher.
Locking module 17 is namely utilized the lock-in amplifier identification heart rate with frequency sweep function.Lock-in amplifier is to utilize relevant principle, extracts the effective ways of small-signal from noise.But frequency or its approximate frequency that prerequisite is noise are known, so just can produce the same frequency reference signal, reach signal coherence and extract the purpose of small-signal.The output of traditional lock-in amplifier is the DC voltage that is directly proportional to signal intensity.For the vital sign in this project monitoring mattress, people's pulse frequency varies with each individual, so its piezoelectric signal frequency also fluctuates, and traditional like this lock-in amplifier technology just can not obtain expected result.Therefore the present invention takes the way of frequency sweep: the frequency that makes reference signal in a specified scope by ascending repeatedly change (that is the frequency sweep) of certain step-length, when lock-in amplifier has the direct current signal of stable output, can obtain heart rate by the frequency of reference signal.During specific implementation frequency sweep lock-in amplifier, can utilize rapid fourier change to accomplish easily, namely first the time-domain signal of piezoelectric cable is obtained frequency-region signal as rapid fourier change, then find out the frequency of energy maximum in frequency-region signal, frequency can calculate heart rate thus.
In decision-making module 18, determine final rhythm signal according to the heart rate data signal of comparison module 16 and locking module 17 two-way.The two-way heart rate data is derived from two kinds of different heart rate acquisition methods, and quality is often respectively arranged in different environments for use.Decision-making module 18 will therefrom be got excellent roguing exactly, and output is heart rate data the most accurately.Concrete method can have multiple, and as simple averaging method, the weighted sum method is near averaging method etc.Also can utilize artificial neural network, support vector regression, find relation between two-way heart rate data and true heart rate data with the method for machine learning, utilize this relation to obtain final heart rate data according to the two-way heart rate data.
As Fig. 1 ~ shown in Figure 4: human body to be monitored directly lies on the mattress body, and the intrinsic sign monitoring sensor 6 of mattress detects the sign information of human body to be monitored, namely realizes the monitoring without the constraint vital sign.Extract the information of 7 pairs of sign monitoring sensors 6 of circuit analyzes by information analysis, thereby the moving state of the heart rate, breathing rate, body that obtain human body to be monitored, at bed/from the bed state, and can realize storage and the transmission of monitoring state parameter, compact conformation, use cost is low, easy to use, safe and reliable.
Above-mentioned is only one embodiment of the present of invention, and enforcement such as embodiment of the method that it is concrete are described, do not repeat them here, but not in order to limit the present invention.
The above is only preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of making within the spirit and principles in the present invention, is equal to and replaces and improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. monitor mattress without the constraint vital sign for one kind, comprise the mattress body; It is characterized in that: be provided with the sign monitoring sensor (6) for the monitoring vital sign information in described mattress body, described sign monitoring sensor (6) is electrically connected to information analysis extraction circuit (7), and the moving identification of heart rate, breathing rate, body that correspondence was identified and stored to information analysis extraction circuit (7) according to the monitor signal of sign monitoring sensor (6) reaches at bed and/or from the bed state.
2. according to claim 1 without constraint vital sign monitoring mattress, it is characterized in that: described sign monitoring sensor (6) comprises and is distributed in the intrinsic piezoelectric cable of mattress.
3. according to claim 1 without constraint vital sign monitoring mattress, it is characterized in that: described information analysis extracts circuit (7) and comprises microcontroller (2), described microcontroller (2) is connected with the outfan of sign monitoring sensor (6) by operation amplifier and analog to digital conversion circuit (1), the moving identification of heart rate, breathing rate, body that microcontroller (2) identification is corresponding and at bed and/or from the bed state, and with the moving identification of heart rate, breathing rate, body of described identification and store in SD card (5) at bed and/or from the bed state.
4. according to claim 3 without constraint vital sign monitoring mattress, it is characterized in that: described microcontroller (2) is connected with ethernet controller (4), and the heart rate that microcontroller (2) will be identified and/or store by ethernet controller (4), breathing rate, the moving identification of body reach at bed and/or from the bed state transfer to Ethernet.
5. according to claim 3 without constraint vital sign monitoring mattress, it is characterized in that: described microcontroller (2) is connected with buzzer (3), the heart rate of microcontroller (2) identification, breathing rate, the moving identification of body reach and do not mate at bed and/or from bed state and canned data, and microcontroller (2) is reported to the police by buzzer (3).
6. according to claim 3 without constraint vital sign monitoring mattress, it is characterized in that: described microcontroller (2) comprises Port Multiplier (9), the outfan of described Port Multiplier (9) and regulator (10), the moving identification module (14) of body and at bed/be connected from bed state recognition module (15), regulator (10) is connected with heart rate identification module (12) by amplification filtering module (11), and described heart rate identification module (12) is connected with breathing rate identification module (13).
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| CN201310106596.9A CN103142219B (en) | 2013-03-28 | 2013-03-28 | Unrestraint type vital sign monitoring mattress |
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Cited By (16)
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| CN104274158A (en) * | 2013-07-10 | 2015-01-14 | 上海宽带技术及应用工程研究中心 | Furniture physical sign detection device and furniture type physical sign monitoring system |
| CN104274181A (en) * | 2013-07-10 | 2015-01-14 | 上海宽带技术及应用工程研究中心 | Furniture type physical sign detection method, system and monitoring system |
| CN104510451A (en) * | 2013-09-29 | 2015-04-15 | 海思康利(北京)新技术有限公司 | Non-load monitoring system |
| CN104931073A (en) * | 2015-06-30 | 2015-09-23 | 奇瑞汽车股份有限公司 | Sensor based on signal adjusting circuit |
| CN105117007A (en) * | 2015-08-20 | 2015-12-02 | 小米科技有限责任公司 | Control method and device of display equipment and intelligent pad |
| CN106255449A (en) * | 2014-05-05 | 2016-12-21 | 思勘度股份有限公司 | There is the mancarried device of the multiple integrated sensors scanned for vital sign |
| CN106236041A (en) * | 2016-08-23 | 2016-12-21 | 电子科技大学 | A kind of measure in real time and accurately heart rate and the algorithm of breathing rate and system |
| CN107981846A (en) * | 2018-01-02 | 2018-05-04 | 湖北心源科技有限公司 | Contactless multi-parameter sleep acquisition analysis system |
| CN108433435A (en) * | 2018-03-28 | 2018-08-24 | 江苏兰菱机电科技有限公司 | A kind of lathe pad |
| CN109394223A (en) * | 2017-08-17 | 2019-03-01 | 香港理工大学 | Monitor the method, apparatus and server of physical activity |
| CN109497953A (en) * | 2018-12-29 | 2019-03-22 | 浙江梦神家居股份有限公司 | It is a kind of collect sleep quality data mattress and its analysis control methods |
| CN110215214A (en) * | 2019-05-29 | 2019-09-10 | 深圳和而泰家居在线网络科技有限公司 | To the monitoring method, monitoring device and monitoring device of bed |
| CN111210602A (en) * | 2019-12-27 | 2020-05-29 | 广州昆仑科技有限公司 | Night risk prevention and control method, system and storage medium |
| CN111770705A (en) * | 2017-12-28 | 2020-10-13 | 数眠公司 | Bed with presence detection feature |
| CN111938588A (en) * | 2020-07-24 | 2020-11-17 | 深圳数联天下智能科技有限公司 | Method for detecting sleep state, sleep monitor and storage medium |
| WO2022020874A1 (en) | 2020-07-30 | 2022-02-03 | Malzl Hans L | System and method for detecting sleep quality |
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| CN104274181A (en) * | 2013-07-10 | 2015-01-14 | 上海宽带技术及应用工程研究中心 | Furniture type physical sign detection method, system and monitoring system |
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| CN104510451A (en) * | 2013-09-29 | 2015-04-15 | 海思康利(北京)新技术有限公司 | Non-load monitoring system |
| CN106255449A (en) * | 2014-05-05 | 2016-12-21 | 思勘度股份有限公司 | There is the mancarried device of the multiple integrated sensors scanned for vital sign |
| CN104931073A (en) * | 2015-06-30 | 2015-09-23 | 奇瑞汽车股份有限公司 | Sensor based on signal adjusting circuit |
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| CN106236041B (en) * | 2016-08-23 | 2019-06-25 | 电子科技大学 | A kind of algorithm and system measuring heart rate and respiratory rate in real time and accurately |
| CN109394223A (en) * | 2017-08-17 | 2019-03-01 | 香港理工大学 | Monitor the method, apparatus and server of physical activity |
| CN111770705A (en) * | 2017-12-28 | 2020-10-13 | 数眠公司 | Bed with presence detection feature |
| CN107981846A (en) * | 2018-01-02 | 2018-05-04 | 湖北心源科技有限公司 | Contactless multi-parameter sleep acquisition analysis system |
| CN108433435A (en) * | 2018-03-28 | 2018-08-24 | 江苏兰菱机电科技有限公司 | A kind of lathe pad |
| CN109497953A (en) * | 2018-12-29 | 2019-03-22 | 浙江梦神家居股份有限公司 | It is a kind of collect sleep quality data mattress and its analysis control methods |
| CN110215214A (en) * | 2019-05-29 | 2019-09-10 | 深圳和而泰家居在线网络科技有限公司 | To the monitoring method, monitoring device and monitoring device of bed |
| CN111210602A (en) * | 2019-12-27 | 2020-05-29 | 广州昆仑科技有限公司 | Night risk prevention and control method, system and storage medium |
| CN111938588A (en) * | 2020-07-24 | 2020-11-17 | 深圳数联天下智能科技有限公司 | Method for detecting sleep state, sleep monitor and storage medium |
| WO2022020874A1 (en) | 2020-07-30 | 2022-02-03 | Malzl Hans L | System and method for detecting sleep quality |
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