CN103824418A - Off-bed monitoring alarm system, alarm device and alarm method and bed - Google Patents
Off-bed monitoring alarm system, alarm device and alarm method and bed Download PDFInfo
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- CN103824418A CN103824418A CN201310049874.1A CN201310049874A CN103824418A CN 103824418 A CN103824418 A CN 103824418A CN 201310049874 A CN201310049874 A CN 201310049874A CN 103824418 A CN103824418 A CN 103824418A
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Abstract
The invention discloses an off-bed monitoring alarm system, alarm device and alarm method and a bed. The off-bed monitoring alarm system comprises two piezoelectric film sensors, a processor and an alarm. The two piezoelectric film sensors are sequentially laid on the bed along the extension direction of the long edge of the bed, and collects pressure signals from the bed continuously and synchronously. The processor forms two periodic physiological feature signals of a man in bed according to the two pressure signals, judges the man falls off the bed when the two periodic physiological feature signals break off synchronously, and judges the man leaves the bed voluntarily when the two periodic physiological feature signals break off non-synchronously. The alarm gives out alarm reminding when the man falls off the bed. The advantages lie in that the man falling off the bed can be found timely, and rapid remedy measures can be taken conveniently. The invention also relates to the bed equipped with the off-bed monitoring alarm system, the off-bed monitoring alarm device in matched usage with the off-bed monitoring alarm system, and the off-bed monitoring alarm method.
Description
Technical field
The present invention relates to a kind of warning system, relate in particular to a kind of warning system from bed monitoring, be provided with this from the bed of warning system of bed monitoring, with should be from the warning system of bed monitoring matching used warning device and alarm method thereof from bed monitoring.
Background technology
In the care institutions vibrations such as hospital, social wellfare home, insane asylum and endowment center or family, the situation that the disabled person of mental patient, amentia old man, forfeiture arm drops sick bed occurs often, owing to not finding in time, fail to sue and labour in time, cause sorry or dispute.Be not only care institutions vibrations, in the family that has child, also can often occur falling in child's sleep process under bed and fail the accident of finding in time, easily catch a cold because child fails to find in time, sick, when affecting child's health, delay the head of a family's work.
Summary of the invention
The object of the invention is to develop a kind of warning system from bed monitoring, be provided with this from the bed of warning system of bed monitoring, with should be from the warning system of bed monitoring matching used warning device and alarm method thereof from bed monitoring, it solves the upper human body of bed and drops the technical matters that can not find in time from bed.
The present invention is achieved by following technical solution:
From a warning system for bed monitoring, it comprises the first piezoelectric film sensor, the second piezoelectric film sensor, processor and alarm; This first piezoelectric film sensor and this second piezoelectric film sensor are for laying in bed successively along the long limit bearing of trend of bed, and synchronous continuous acquisition is from the pressure signal on this; This processor is for forming respectively two periodicity physiological characteristic signals of this upper human body according to two pressure signals, and in the time of two periodicity physiological characteristic signal sync break, judge that human body drops from bed, and in the time that two periodically interrupt physiological characteristic signal front and back, judge that human body is voluntarily from bed; This alarm sends alarm while dropping from bed for being judged as at this processor.
As the further improvement of such scheme, this the first piezoelectric film sensor correspondence is placed in this head of a bed region, this the second piezoelectric film sensor correspondence is placed in this lathe bed region, this processor also, at corresponding with the second piezoelectric film sensor, the first piezoelectric film sensor two while periodically interrupting before and after physiological characteristic signals respectively, judges that human body is voluntarily from bed.
As the further improvement of such scheme, should also comprise the prime amplifier being all electrically connected with this first piezoelectric film sensor, this second piezoelectric film sensor from the warning system of bed monitoring, this prime amplifier is for the pressure signal of this first piezoelectric film sensor and this second piezoelectric film sensor is amplified respectively, and this prime amplifier is also electrically connected the pressure signal that is used for transmitting after amplification to this processor with this processor.
As the further improvement of such scheme, should also comprise the operation push-button being electrically electrically connected with this processor from the warning system of bed monitoring, this operation push-button is for controlling the required function of this processor selection.
As the further improvement of such scheme, should also comprise the power supply unit to system power supply from the warning system of bed monitoring.
The present invention also provides a kind of warning device from bed monitoring, and it is applied in the above-mentioned warning system of guarding from bed, should comprise from the warning device of bed monitoring:
Signal acquisition module, it is the pressure signal from this first piezoelectric film sensor and this second piezoelectric film sensor for the synchronous continuous acquisition of difference;
Signal processing module, it is for forming respectively two periodicity physiological characteristic signals of this upper human body according to two pressure signals;
Signal judge module, it is at two periodically when physiological characteristic signal sync break, judge that human body drops from bed, and periodically before and after physiological characteristic signals when interruption, judges that human body is voluntarily from bed at two; And
Alarm module, it,, for being judged as while dropping from bed, drives this alarm to send alarm.
As the further improvement of such scheme, two pressure signals that this signal acquisition module gathers are through preposition amplification processing.
The present invention also provides a kind of alarm method from bed monitoring, and it is applied to above-mentioned in the warning system of bed monitoring, should comprise from the alarm method of bed monitoring:
Synchronous continuous acquisition is from the pressure signal of this first piezoelectric film sensor and this second piezoelectric film sensor respectively;
Form respectively two periodicity physiological characteristic signals of this upper human body according to two pressure signals;
At two periodically when physiological characteristic signal sync break, judge that human body drops from bed, and periodically before and after physiological characteristic signals when interruption, judge that human body is voluntarily from bed at two; And
Being judged as while dropping from bed, drive this alarm to send alarm.
As the further improvement of such scheme, these two pressure signals are through preposition amplification processing.
The present invention also provides a kind of bed, on its bed board, is equipped with mattress, is provided with from the warning system of bed monitoring on this bed board, should comprise the first piezoelectric film sensor, the second piezoelectric film sensor, processor and alarm from the warning system of bed monitoring; This first piezoelectric film sensor and this second piezoelectric film sensor are for laying in bed successively along the long limit bearing of trend of bed, and synchronous continuous acquisition is from the pressure signal on this; This processor is for forming respectively two periodicity physiological characteristic signals of this upper human body according to two pressure signals, and in the time of two periodicity physiological characteristic signal sync break, judge that human body drops from bed, and in the time that two periodically interrupt physiological characteristic signal front and back, judge that human body is voluntarily from bed; This alarm sends alarm while dropping from bed for being judged as at this processor.Lay successively this first piezoelectric film sensor and this second piezoelectric film sensor at the long limit bearing of trend along bed board, this mattress is laid on the top layer that is positioned at this on this first piezoelectric film sensor and this second piezoelectric film sensor.
As the further improvement of such scheme, this the first piezoelectric film sensor correspondence is placed in this head of a bed region, this the second piezoelectric film sensor correspondence is placed in this lathe bed region, this processor also, at corresponding with the second piezoelectric film sensor, the first piezoelectric film sensor two while periodically interrupting before and after physiological characteristic signals respectively, judges that human body is voluntarily from bed.
As the further improvement of such scheme, should also comprise the prime amplifier being all electrically connected with this first piezoelectric film sensor, this second piezoelectric film sensor from the warning system of bed monitoring, this prime amplifier is for the pressure signal of this first piezoelectric film sensor and this second piezoelectric film sensor is amplified respectively, and this prime amplifier is also electrically connected the pressure signal that is used for transmitting after amplification to this processor with this processor.
As the further improvement of such scheme, should also comprise the operation push-button being electrically electrically connected with this processor from the warning system of bed monitoring, this operation push-button is for controlling the required function of this processor selection.
As the further improvement of such scheme, should also comprise the power supply unit to system power supply from the warning system of bed monitoring.
Warning system from bed monitoring of the present invention, this bed from the warning system of bed monitoring is installed, with this warning system from bed monitoring matching used warning device and alarm method thereof from bed monitoring, by adopting the first piezoelectric film sensor and the second piezoelectric film sensor that the respiratory cycle the features of sex physiology of human body is converted to periodically physiological characteristic signal, and judge that thus human body drops from bed still voluntarily from bed, and in the time that dropping from bed, judgement sends alarm, thereby can find in time that human body drops the mishap from bed, be convenient to make remedial measures rapidly.
Accompanying drawing explanation
Fig. 1 is for being provided with of providing of preferred embodiments of the present invention is from the use view of the bed of the warning system of bed monitoring.
Fig. 2 be in Fig. 1 from the warning system of bed monitoring from bed monitoring circuit diagram.
Fig. 3 is the view that couches of the upper human body of bed in Fig. 1.
Fig. 4 is vital sign oscillogram when the upper human normal of bed couches in Fig. 1.
Fig. 5 is the view of falling that in Fig. 1, bed is gone up human body.
Fig. 6 is the view of standing up of the upper human body of bed in Fig. 1.
Fig. 7 be in Fig. 1 the upper human body of bed from bed view.
Fig. 8 is the normal vital sign oscillogram from bed of the upper human body of bed in Fig. 1.
Fig. 9 is the abnormal vital sign oscillogram from bed of the upper human body of bed in Fig. 1.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, it is the use view that the bed of the warning system of guarding from bed is installed.Bed also comprises bed board 9 and mattress 10, recumbency human body 11 on mattress 10.Incorporated by reference to Fig. 2, the warning system from bed monitoring of installing on bed comprises hardware components and software section, and its hardware components comprises piezoelectric film sensor 1, prime amplifier 2, processor 3, operation push-button 4, alarm 5 and power supply unit 6.
Piezoelectric film sensor 1 comprises the first piezoelectric film sensor 7, the second piezoelectric film sensor 8.Lay successively this first piezoelectric film sensor 7 and this second piezoelectric film sensor 8 at the long limit bearing of trend along bed board 9, corresponding this first piezoelectric film sensor 7 of settling in head of a bed region of this bed board 9, corresponding this second piezoelectric film sensor 8 of settling in lathe bed region of this bed board 9.This mattress 10 is laid on the top layer that is positioned at this on this first piezoelectric film sensor 7 and this second piezoelectric film sensor 8.In human body 11 is slept on mattress 10, actual is to be pressed on the first piezoelectric film sensor 7 and the second piezoelectric film sensor 8, as shown in Figure 3.This first piezoelectric film sensor 7 with this second piezoelectric film sensor 8 for synchronizeing continuous acquisition from the pressure signal on this.Piezoelectric film sensor 1 adopts the core component of piezoelectric membrane as pressure transducer, comprises piezo-electric electret thin film, PVDF piezoelectric membrane, pzt thin film.
This processor 3 is for forming respectively two periodicity physiological characteristic signals of this upper human body 11 according to two pressure signals, the breathing of human body 11 exists and rises and falls, can drive the periodic jitter of whole human body 11, therefore, two pressure signals can form two periodicity physiological characteristic signals as shown in Figure 4.
When human body 11 falls, the pressure on the first piezoelectric film sensor 7 and the second piezoelectric film sensor 8 is got back to original state, thereby pressure signal sync break, as shown in Figure 5.Human body 11 is in the time standing up, and the pressure on the first piezoelectric film sensor 7 is got back to original state, thereby pressure signal interruption, and the second piezoelectric film sensor 8 remains unchanged, as shown in Figure 6; Then, human body 11 is during from bed, the second piezoelectric film sensor 8 can be because human body 11 be from bed, and pressure on it is got back to original state, thereby pressure signal interrupts thereupon, as shown in Figure 7, therefore, human body 11 during from bed, interrupts before and after the pressure signal of the first piezoelectric film sensor 7 and the second piezoelectric film sensor 8.
Therefore, human body is during voluntarily from bed, and two periodically interrupt before and after physiological characteristic signals, as shown in Figure 8; And human body is while dropping from bed, two physiological characteristic signal sync break periodically, as shown in Figure 9.According to above analysis, this processor 3 is also at two periodically when physiological characteristic signal sync break, judge that human body drops from bed, and periodically before and after physiological characteristic signals when interruption, judges that human body is voluntarily from bed at two.
In order to improve the accuracy of signal, generally need to utilize prime amplifier 2 to amplify respectively this first piezoelectric film sensor 7 and the pressure signal of this second piezoelectric film sensor 8, this prime amplifier 2 is not only electrically connected with this second piezoelectric film sensor 8 with this first piezoelectric film sensor 7, is also electrically connected the pressure signal that is used for transmitting after amplification to this processor 3 with this processor 3.
This alarm 5 sends alarm while dropping from bed for being judged as at this processor 3, thereby can find in time that human body drops the mishap from bed, is convenient to make remedial measures rapidly.Alarm 5 can adopt physical components, as hummer, sound equipment etc., also can adopt software part, design software pop-up window, this is practical in care institutions vibrations, by being connected with nurse station is wired or wireless from the warning system of bed monitoring, in the time that the patient on sick bed drops from bed, on the monitor of nurse station, eject prompt window, carry out emergency alarm.For the purpose of can certainly insuring, carry out soft or hard and combine.
Operation push-button 4 is electrically electrically connected with this processor 3, and this operation push-button 4 is selected required function for controlling this processor 3, as on & off switch, close, otherwise open, so convenient control in the warning system operation that need to not guard from bed; The set of time key of the length of reporting to the police for another example or ann reset key etc.
Power supply unit 6, for to system power supply, can adopt powered battery, also can adopt rechargeable battery, can also adopt external power source to add transformer form, and as civil power, its 220V is converted to required voltage through transformer.
The software section of the warning system of guarding from bed can be arranged in processor 3, also can be arranged in computing machine, in the computing machine of nurse station or server.The software section of the warning system of guarding from bed is the warning device from bed monitoring, warning device from bed monitoring comprises: signal acquisition module, and it is the pressure signal from this first piezoelectric film sensor 7 and this second piezoelectric film sensor 8 for the synchronous continuous acquisition of difference; Signal processing module, it is for forming respectively two periodicity physiological characteristic signals of this upper human body according to two pressure signals; Signal judge module, it is at two periodically when physiological characteristic signal sync break, judge that human body drops from bed, and periodically before and after physiological characteristic signals when interruption, judges that human body is voluntarily from bed at two; And alarm module, it,, for being judged as while dropping from bed, drives this alarm 5 to send alarm.Preferably, two pressure signals that this signal acquisition module gathers are through preposition amplification processing.
On software flow, first, synchronous continuous acquisition is from the pressure signal of this first piezoelectric film sensor and this second piezoelectric film sensor respectively; Secondly, form respectively two periodicity physiological characteristic signals of this upper human body according to two pressure signals; Then, at two periodically when physiological characteristic signal sync break, judge that human body drops from bed, and periodically before and after physiological characteristic signals when interruption, judge that human body is voluntarily from bed at two; Afterwards, being judged as while dropping from bed, drive this alarm to send alarm.
The present invention adopts two-way piezoelectric film sensor synchronous acquisition human cyclin physiology sign, and this periodicity physiology sign includes but not limited to heartbeat, breathing, physical activity.In the time that human body leaves sensor sensing district, acquisition system does not show Human Physiology sign, thereby whether differentiate human body normal from the action of bed, and team's unusual condition is reported to the police.
The invention has the advantages that:
1. non-contact type monitoring: patient does not need to wear anything;
2. without manual call, system can be identified patient's the sick bed of dropping automatically;
3. adopt flexible piezoelectric membrane as pressure transducer, have good adaptability with human body;
4. by the state of monitoring physiology sign identification human body, can get rid of the false alarm of object (clothes or pillow etc.) to monitor system.
In sum, warning system from bed monitoring of the present invention, this bed from the warning system of bed monitoring is installed, with this warning system from bed monitoring matching used warning device and alarm method thereof from bed monitoring, by adopting the first piezoelectric film sensor and the second piezoelectric film sensor that the respiratory cycle the features of sex physiology of human body is converted to periodically physiological characteristic signal, and judge that thus human body drops from bed still voluntarily from bed, and in the time that dropping from bed, judgement sends alarm, thereby can find in time that human body drops the mishap from bed, be convenient to make remedial measures rapidly.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. from a warning system for bed monitoring, it is characterized in that, it comprises the first piezoelectric film sensor, the second piezoelectric film sensor, processor and alarm; This first piezoelectric film sensor and this second piezoelectric film sensor are for laying in bed successively along the long limit bearing of trend of bed, and synchronous continuous acquisition is from the pressure signal on this; This processor is for forming respectively two periodicity physiological characteristic signals of this upper human body according to two pressure signals, and in the time of two periodicity physiological characteristic signal sync break, judge that human body drops from bed, and in the time that two periodically interrupt physiological characteristic signal front and back, judge that human body is voluntarily from bed; This alarm sends alarm while dropping from bed for being judged as at this processor.
2. the warning system from bed monitoring as claimed in claim 1, it is characterized in that, this the first piezoelectric film sensor correspondence is placed in this head of a bed region, this the second piezoelectric film sensor correspondence is placed in this lathe bed region, this processor also, at corresponding with the second piezoelectric film sensor, the first piezoelectric film sensor two while periodically interrupting before and after physiological characteristic signals respectively, judges that human body is voluntarily from bed.
3. the warning system from bed monitoring as claimed in claim 1, it is characterized in that, should also comprise the prime amplifier being all electrically connected with this first piezoelectric film sensor, this second piezoelectric film sensor from the warning system of bed monitoring, this prime amplifier is for the pressure signal of this first piezoelectric film sensor and this second piezoelectric film sensor is amplified respectively, and this prime amplifier is also electrically connected the pressure signal that is used for transmitting after amplification to this processor with this processor.
4. the warning system from bed monitoring as described in claim 1 or 2 or 3, is characterized in that, should also comprise the operation push-button being electrically electrically connected with this processor from the warning system of bed monitoring, and this operation push-button is for controlling the required function of this processor selection.
5. the warning system from bed monitoring as claimed in claim 1, is characterized in that, should also comprise the power supply unit to system power supply from the warning system of bed monitoring.
6. from a warning device for bed monitoring, it is applied in the warning system of guarding from bed as described in any one in claim 1 to 5, it is characterized in that, should comprise from the warning device of bed monitoring:
Signal acquisition module, it is the pressure signal from this first piezoelectric film sensor and this second piezoelectric film sensor for the synchronous continuous acquisition of difference;
Signal processing module, it is for forming respectively two periodicity physiological characteristic signals of this upper human body according to two pressure signals;
Signal judge module, it is at two periodically when physiological characteristic signal sync break, judge that human body drops from bed, and periodically before and after physiological characteristic signals when interruption, judges that human body is voluntarily from bed at two; And
Alarm module, it,, for being judged as while dropping from bed, drives this alarm to send alarm.
7. the warning device from bed monitoring as claimed in claim 6, is characterized in that, two pressure signals that this signal acquisition module gathers are through preposition amplification processing.
8. from an alarm method for bed monitoring, it is applied in the warning system of guarding from bed as described in any one in claim 1 to 5, it is characterized in that, should comprise from the alarm method of bed monitoring:
Synchronous continuous acquisition is from the pressure signal of this first piezoelectric film sensor and this second piezoelectric film sensor respectively;
Form respectively two periodicity physiological characteristic signals of this upper human body according to two pressure signals;
At two periodically when physiological characteristic signal sync break, judge that human body drops from bed, and periodically before and after physiological characteristic signals when interruption, judge that human body is voluntarily from bed at two; And
Being judged as while dropping from bed, drive this alarm to send alarm.
9. the alarm method from bed monitoring as claimed in claim 8, is characterized in that, these two pressure signals are through preposition amplification processing.
10. a bed, on its bed board, be equipped with mattress, it is characterized in that, the warning system from bed monitoring as described in any one in claim 1 to 5 is installed on this bed board, lay successively this first piezoelectric film sensor and this second piezoelectric film sensor at the long limit bearing of trend along bed board, this mattress is laid on the top layer that is positioned at this on this first piezoelectric film sensor and this second piezoelectric film sensor.
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| CN201310049874.1A CN103824418B (en) | 2013-02-07 | 2013-02-07 | Warning system and bed, alarm device and alarm method thereof from bed monitoring |
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| CN201310049874.1A CN103824418B (en) | 2013-02-07 | 2013-02-07 | Warning system and bed, alarm device and alarm method thereof from bed monitoring |
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Cited By (11)
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| CN106846735A (en) * | 2017-04-12 | 2017-06-13 | 深圳市智化科技有限公司 | A kind of intelligent mattress warning system |
| CN107170198A (en) * | 2017-05-17 | 2017-09-15 | 华中科技大学 | It is a kind of to detect warning device from bed |
| CN107865746A (en) * | 2017-12-20 | 2018-04-03 | 珠海智星荟科技服务有限公司 | A kind of physiotherapy couch easy to remove |
| CN108186245A (en) * | 2018-03-01 | 2018-06-22 | 重庆医科大学附属第医院 | A kind of liquid monitoring for critically ill patient and cleaning system and method |
| CN108550240A (en) * | 2018-02-27 | 2018-09-18 | 浙江辉宏地理信息有限公司 | A kind of internet of things sensors network system |
| CN109276381A (en) * | 2018-07-18 | 2019-01-29 | 凯泰科（中国）医疗器械股份有限公司 | A kind of intelligence hospital bed monitoring system |
| CN110555978A (en) * | 2019-09-06 | 2019-12-10 | 上海长征医院 | prevent falling and weigh down warning mattress of bed |
| CN110812665A (en) * | 2019-11-14 | 2020-02-21 | 北京航空航天大学 | Catheter antimicrobial system and method of use |
| CN111145894A (en) * | 2019-12-03 | 2020-05-12 | 江苏省无锡交通高等职业技术学校 | Medical monitoring and interaction system |
| CN113633279A (en) * | 2021-07-25 | 2021-11-12 | 华中科技大学同济医学院附属协和医院 | Bed leaving monitoring alarm method and system |
| CN113724472A (en) * | 2021-06-24 | 2021-11-30 | 浙江麒盛数据服务有限公司 | Sleep leaving alarm method and system for intelligent bed and storage medium |
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| CN110812665B (en) * | 2019-11-14 | 2021-04-30 | 北京航空航天大学 | Catheter antimicrobial system and method of use |
| CN111145894A (en) * | 2019-12-03 | 2020-05-12 | 江苏省无锡交通高等职业技术学校 | Medical monitoring and interaction system |
| CN111145894B (en) * | 2019-12-03 | 2023-07-04 | 江苏省无锡交通高等职业技术学校 | Medical monitoring and interaction system |
| CN113724472A (en) * | 2021-06-24 | 2021-11-30 | 浙江麒盛数据服务有限公司 | Sleep leaving alarm method and system for intelligent bed and storage medium |
| CN113633279A (en) * | 2021-07-25 | 2021-11-12 | 华中科技大学同济医学院附属协和医院 | Bed leaving monitoring alarm method and system |
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