CN107198533A - Pressure sore prevention alarm set, method and system - Google Patents
Pressure sore prevention alarm set, method and system Download PDFInfo
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- CN107198533A CN107198533A CN201611080255.9A CN201611080255A CN107198533A CN 107198533 A CN107198533 A CN 107198533A CN 201611080255 A CN201611080255 A CN 201611080255A CN 107198533 A CN107198533 A CN 107198533A
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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
- A61B5/22—Ergometry; Measuring muscular strength or the force of a muscular blow
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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
- A61B5/44—Detecting, measuring or recording for evaluating the integumentary system, e.g. skin, hair or nails
- A61B5/441—Skin evaluation, e.g. for skin disorder diagnosis
- A61B5/447—Skin evaluation, e.g. for skin disorder diagnosis specially adapted for aiding the prevention of ulcer or pressure sore development, i.e. before the ulcer or sore has developed
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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
- A61B5/74—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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/05—Parts, details or accessories of beds
- A61G7/057—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor
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Abstract
The invention discloses a kind of pressure sore prevention alarm set, method and system, wherein, pressure sore prevention alarm set includes：Pressure sensitive module, signal processing module, signal analysis control module and warning reminding module；Wherein, pressure sensitive module includes at least one friction generator and/or at least one piezoelectric generator, for sensing the pressure that human body is acted in pressure sensitive module, output pressure electric signal；Signal processing module is connected with pressure sensitive module, for handling the electric pressure signal that pressure sensitive module is exported；Signal analysis control module is connected with signal processing module, for handling signal processing module after electric pressure signal analyze, obtain analysis result, and alarm control signal is exported according to analysis result；Warning reminding module is connected with signal analysis control module, for carrying out alarm according to alarm control signal.The technical scheme that the present invention is provided has the advantage for improving sensing sensitivity and the degree of accuracy and reduction rate of false alarm.
Description
Technical field
The present invention relates to medical treatment and nursing technical field, and in particular to a kind of pressure sore prevention alarm set, method and system.
Background technology
As the aging population trend of society and the incidence of disease of angiocardiopathy rise, on the incidence of disease of pressure sore also has
The trend risen.Pressure sore is also known as pressure ulcer, bedsore, refers to that body part tissue is pressurized for a long time, blood circulation disorder, tissue
Nutritional deficiency, causes skin to lose tissue damage caused by normal function and necrosis, and multiple body of being born in is pressurized and shortage fat
Fat organization protection, without musculature parcel or the relatively thin bone knuckle of muscle layer at.
For pressure sore, different positions has different predilection sites, and dorsal position is apt to occur in occipital tuberosity, scapular region, elbow, sacrum
Afterbody, heel, lateral position are apt to occur in outside in auricle, acromion, elbow, hip, knee joint, outside in ankle-joint, and prone position is sent out well
In forehead, lower jaw, shoulder, breast, costal margin, crista iliaca, knee, toe, seat is apt to occur in ischial tuberosity.
The more effective method of current Bedsore prevention is stood up for patient, prevents body part tissue to be pressurized for a long time,
But there is problems with this kind of method：Medical personnel and/or care provider may be forgotten or be prolonged due to various outside causes
Bedsore, causes to be stood up to patient in time by mistake, the probability that increase pressure sore occurs；In addition, if medical personnel are special
Surely guard a certain position patient, although can largely Bedsore prevention generation, still, which not only adds medical care people
The workload of member, and make the reduction of its operating efficiency, while also huge medical expense can be brought to bear to families of patients.
Therefore, lack in the prior art one kind can sensitive, monitor human body pressing times, and remind medical personnel
And/or care provider stand up in time for patient pressure sore prevention alarm set, method and system.
The content of the invention
The present invention goal of the invention be for prior art defect there is provided a kind of pressure sore prevention alarm set, method and
System, for solve it is of the prior art can not sensitive, monitor human body pressing times, and remind medical personnel and/or
The problem of care provider stands up for patient in time.
The present invention provides a kind of pressure sore prevention alarm set, and the device includes：Pressure sensitive module, signal processing module, letter
Number analysis and Control module and warning reminding module；Wherein,
Pressure sensitive module includes at least one friction generator and/or at least one piezoelectric generator, for sensing people
The pressure that body is acted in pressure sensitive module, output pressure electric signal；
Signal processing module is connected with pressure sensitive module, and the electric pressure signal for being exported to pressure sensitive module is carried out
Processing；
Signal analysis control module is connected with signal processing module, for handling signal processing module after pressure telecommunications
Number analyzed, obtain analysis result, and alarm control signal is exported according to analysis result；
Warning reminding module is connected with signal analysis control module, for carrying out alarm according to alarm control signal.
Further, signal analysis control module includes：Central control module, the first timer and the second timer；Wherein,
Central control module is connected with signal processing module and the first timer, for judging after signal processing module processing
Electric pressure signal whether be more than or equal to preset pressure electric signal threshold value, if so, then start the first timer carry out timing, obtain
To the first timing time；
Central control module is connected with warning reminding module and the second timer, is additionally operable to judge the first of the first timer
Whether timing time is more than the first preset time threshold, if so, then exporting alarm control signal, and starts the progress of the second timer
Timing, obtains the second timing time；
Whether central control module is additionally operable to judge the second timing time of the second timer more than the second preset time threshold
Value, if so, the electric pressure signal after then being handled according to signal processing module, judges whether to stand up user.
Further, central control module is further used for：If central control module judges to obtain standing up user,
Then reset the first timer and the second timer；If central control module judges to obtain not standing up user, the is reset
One timer, the first timer is added to by the second timing time of the second timer, is started the first timer and is continued timing, and
The second timer is reset, the time do not stood up to user and number of times is stored.
Further, signal processing module includes：Rectification module, filtration module, amplification module and analog-to-digital conversion module；Its
In,
Rectification module is connected with pressure sensitive module, and the electric pressure signal for being exported to pressure sensitive module carries out rectification
Processing；
Filtration module is connected with rectification module, for being filtered processing to the electric pressure signal after rectified processing；
Amplification module is connected with filtration module, for being amplified processing to the electric pressure signal after filtered processing；
Analog-to-digital conversion module is connected with amplifying circuit, and the electric pressure signal of the simulation for amplification module to be exported is converted to
Corresponding digital electric pressure signal.
Further, pressure sore prevention alarm set also includes：Information inputs display module and/or radio receiving transmitting module；
Wherein, information input display module is connected with signal analysis control module, for inputting preset time threshold, and to
User shows the analysis result that the analysis of signal analysis control module is obtained；
Radio receiving transmitting module is connected with signal analysis control module, for signal analysis control module to be analyzed to obtained point
Analysis result is wirelessly sent to terminal device.
Further, pressure sore prevention alarm set also includes：Histanoxia monitoring modular, temperature monitoring module and/or humidity prison
Survey module；
Wherein, histanoxia monitoring modular is connected with signal analysis control module, for monitoring the human body at pressurized zone
The anaerobic condition of tissue, produces anoxic electric signal.
Temperature monitoring module is connected with signal analysis control module, for monitoring the human tissue surface's at pressurized zone
Temperature, produces temperature signal；
Humidity monitoring module is connected with signal analysis control module, for monitoring the human tissue surface's at pressurized zone
Humidity, produces humidity electric signal.
Further, pressure sensitive module be arranged in the specific pressurized zone of bedding or clothes specific pressurized zone
On.
Further, friction generator is three-decker, four-layer structure, five layers of membrane structure or five layers of intervening electrode between two parties
The friction generator of structure；Friction generator comprises at least two surfaces for constituting frictional interface；Piezoelectric generator is zinc oxide
Generator, piezoelectric ceramic generator, Kynoar generator, porous polypropylene generator and porous Teflon generator
Any of.
Further, constituted in friction generator and be provided with projection at least one surface in two surfaces of frictional interface
Array structure.
Present invention also offers a kind of pressure sore prevention based reminding method, this method includes：
The pressure acted on using pressure sensitive module senses human body in pressure sensitive module, output pressure electric signal；Its
In, pressure sensitive module includes at least one friction generator and/or at least one piezoelectric generator；
The electric pressure signal that pressure sensitive module is exported is handled, the electric pressure signal after processing is obtained；
Electric pressure signal after processing is analyzed, analysis result is obtained, and according to analysis result output alarm control
Signal processed；
Alarm is carried out according to alarm control signal.
Further, the electric pressure signal after processing is analyzed, obtains analysis result, and export according to analysis result
Alarm control signal further comprises：
Judge whether the electric pressure signal after processing is more than or equal to preset pressure electric signal threshold value, if so, then starting
First timer carries out timing, obtains the first timing time；
Whether the first timing time of the first timer is judged more than the first preset time threshold, if so, then output alarm
Control signal, and start the progress timing of the second timer, obtain the second timing time；
Whether the second timing time of the second timer is judged more than the second preset time threshold, if so, then according to through place
Electric pressure signal after reason, judges whether to stand up user.
Further, this method also includes：If judgement obtains standing up user, the first timer and second are reset
Timer；If judgement obtains not standing up user, the first timer is reset, by the second timing time of the second timer
The first timer is added to, starts the first timer and continues timing, and resets the second timer, storage is not stood up to user
Time and number of times.
Further, the electric pressure signal that pressure sensitive module is exported is handled, obtains the pressure telecommunications after processing
Number further comprise：
Rectification, filtering, enhanced processing are carried out to the electric pressure signal that pressure sensitive module is exported；
The electric pressure signal of simulation after amplified processing is converted into corresponding digital electric pressure signal.
Further, analyzed to the electric pressure signal after processing, obtain analysis result, and it is defeated according to analysis result
Go out after alarm control signal, this method also includes：
Analysis result is shown to user；And/or,
Analysis result is wirelessly sent to terminal device.
Further, this method also includes：
Using the anaerobic condition of the tissue at histanoxia monitoring module monitors pressurized zone, anoxic telecommunications is produced
Number；And/or,
The temperature of the human tissue surface at pressurized zone is monitored using temperature monitoring module, temperature signal is produced；With/
Or,
The humidity of the human tissue surface at pressurized zone is monitored using humidity monitoring module, humidity electric signal is produced.
Further, pressure sensitive module be arranged in the specific pressurized zone of bedding or clothes specific pressurized zone
On.
Further, friction generator is three-decker, four-layer structure, five layers of membrane structure or five layers of intervening electrode between two parties
The friction generator of structure；Friction generator comprises at least two surfaces for constituting frictional interface；Piezoelectric generator is zinc oxide
Generator, piezoelectric ceramic generator, Kynoar generator, porous polypropylene generator and porous Teflon generator
Any of.
Further, constituted in friction generator and be provided with projection at least one surface in two surfaces of frictional interface
Array structure.
Present invention also offers a kind of pressure sore prevention system for prompting, the system includes：Above-mentioned pressure sore prevention alarm set and
Terminal device；
Wherein, terminal device is connected with pressure sore prevention alarm set, for receiving point that the analysis of pressure sore prevention alarm set is obtained
Result is analysed, and sends the control instruction for controlling the signal analysis control module in pressure sore prevention alarm set.
Whether the technical scheme that the present invention is provided, located using friction generator and/or piezoelectric generator sensing human body
It is not only convenient for users in pressured state, and sensing sensitivity and the degree of accuracy are improved, reduce rate of false alarm；In addition,
The pressure sore prevention alarm set and system that the present invention is provided have structure and simple, the with low cost advantage of manufacture craft, are adapted to big
Technical scale is produced.
Brief description of the drawings
The functional block diagram for the pressure sore prevention alarm set embodiment one that Fig. 1 provides for the present invention；
The setting schematic diagram of pressure sensitive module in the pressure sore prevention alarm set embodiment one that Fig. 2 provides for the present invention
One；
The setting schematic diagram of pressure sensitive module in the pressure sore prevention alarm set embodiment one that Fig. 3 provides for the present invention
Two；
The setting schematic diagram of pressure sensitive module in the pressure sore prevention alarm set embodiment one that Fig. 4 provides for the present invention
Three；
Fig. 5 for pressure sensitive module, signal processing module in the pressure sore prevention alarm set embodiment one that provides of the present invention with
The connection signal block diagram of signal analysis control module；
Signal processing module, signal analysis control mould in the pressure sore prevention alarm set embodiment one that Fig. 6 provides for the present invention
Block and the connection signal block diagram of warning reminding module；
The setting schematic diagram four for the pressure sensitive module that Fig. 7 provides for the present invention；
The functional block diagram for the pressure sore prevention alarm set embodiment two that Fig. 8 provides for the present invention；
The functional block diagram for the pressure sore prevention alarm set embodiment three that Fig. 9 provides for the present invention；
The function knot for the corresponding pressure sore prevention system for prompting of pressure sore prevention alarm set embodiment two that Figure 10 provides for the present invention
Structure block diagram；
Figure 11 is the cross section structure schematic diagram of the friction generator of three-decker；
The schematic flow sheet for the pressure sore prevention based reminding method embodiment one that Figure 12 provides for the present invention；
The schematic flow sheet for the pressure sore prevention based reminding method embodiment two that Figure 13 provides for the present invention.
Embodiment
To be fully understood by the purpose, feature and effect of the present invention, by following specific embodiments, the present invention is done in detail
Describe in detail bright, but the present invention is not restricted to this.
The invention provides a kind of pressure sore prevention alarm set, the pressure sore prevention alarm set includes：Pressure sensitive module, signal
Processing module, signal analysis control module and warning reminding module；Wherein, pressure sensitive module includes at least one triboelectricity
Machine and/or at least one piezoelectric generator, for sensing the pressure that human body is acted in pressure sensitive module, output pressure telecommunications
Number；Signal processing module is connected with pressure sensitive module, for handling the electric pressure signal that pressure sensitive module is exported；
Signal analysis control module is connected with signal processing module, for handling signal processing module after electric pressure signal divided
Analysis, obtains analysis result, and export alarm control signal according to analysis result；Warning reminding module and signal analysis control module
Connection, for carrying out alarm according to alarm control signal.
The functional block diagram for the pressure sore prevention alarm set embodiment one that Fig. 1 provides for the present invention, as shown in figure 1, this is anti-
Pressure sore alarm set includes：Pressure sensitive module 110, signal processing module 120, signal analysis control module 130 and alarm are carried
Awake module 140.
Pressure sensitive module 110 includes at least one friction generator and/or at least one piezoelectric generator, pressure sensitive
Module 110 may be provided in pressurized zone, for sensing the pressure that human body is acted in pressure sensitive module, output pressure telecommunications
Number；Signal processing module 120 is connected with pressure sensitive module 110, for the electric pressure signal exported to pressure sensitive module 110
Handled；Signal analysis control module 130 is connected with signal processing module 120, after to the processing of signal processing module 120
Electric pressure signal analyzed, obtain analysis result, and alarm control signal is exported according to analysis result；Warning reminding module
140 are connected with signal analysis control module 130, for carrying out alarm according to alarm control signal.Wherein, warning reminding mould
Block 140 may include loudspeaker and/or LED, and warning reminding module 140 is according to alarm control signal with sound and/or light shape
Formula carries out alarm.
Specifically, the quantity of pressure sensitive module 110 can be one, or multiple, those skilled in the art can
Selected, do not limited herein according to actual needs.Pressure sensitive is acted in order to more accurately sense human body
Pressure in module, it is preferred to use multiple pressure sensitive modules.Alternatively, each pressure sensitive module may include that at least one rubs
Wipe generator and/or piezoelectric generator.When each pressure sensitive module includes multiple friction generators, multiple friction generators
It is arranged in the way of stacking in pressurized zone, and can be by the way of series connection and/or parallel connection between multiple friction generators
It is attached.Those skilled in the art can be selected according to actual needs, not limited herein.
Specifically, friction generator can be for three-decker, four-layer structure, five layers membrane structure or five layers are between two parties between two parties
The friction generator of electrode structure, friction generator comprises at least two surfaces for constituting frictional interface.Piezoelectric generator can be with
For zinc oxide generator, piezoelectric ceramic generator, Kynoar generator, porous polypropylene generator or porous polytetrafluoro
Ethene generator.Above-mentioned friction generator and piezoelectric generator have the output end of electric signal output.Those skilled in the art
Friction generator and piezoelectric generator can be selected according to specific needs, are not limited herein.Used to increase user
When comfort level, it is preferable that can be using the friction generator that is fabricated from a flexible material.
Wherein, pressure sensitive module 110 be may be disposed on bedding or clothes, it is preferable that pressure sensitive module 110 is set
It is placed in the specific pressurized zone of bedding or in the specific pressurized zone of clothes.Wherein, specific pressurized zone is according to people
The significant pressurized zone of compression that body pressure distribution is obtained, such as head, shoulder, the back of the body, buttocks, leg and pin etc..With articles for use in bed
Pressure sensitive module 110 is set to compare in whole pressurized zone or in the whole pressurized zone of clothes, in specific pressurized zone
Pressure sensitive module 110 is set to reduce the laying area of pressure sensitive module 110, so as to save pressure sore prevention alarm set
Cost of manufacture.Furthermore it is also possible to which pressure sensitive module 110 is fabricated to and pressurized zone shape identical sucker, directly absorption
In human skin.
The setting schematic diagram of pressure sensitive module in the pressure sore prevention alarm set embodiment one that Fig. 2 provides for the present invention
One, as shown in Fig. 2 pressure sensitive module 210 is arranged in the pressurized zone in the pressurized zone inside mattress and inside pillow,
Wherein, dash area is the pressure sensitive module 210 of setting in Fig. 2.This setup can not only avoid pressure sensitive
Module 210 directly and human contact, adds the usage comfort of user, but also can reduce human body to pressure sensitive module
210 abrasion, the service life of extension pressure sensitive module 210.
The setting schematic diagram of pressure sensitive module in the pressure sore prevention alarm set embodiment one that Fig. 3 provides for the present invention
Two, as shown in figure 3, pressure sensitive module 310 is arranged in the specific pressurized zone of clothes.Wherein, dash area is in Fig. 3
The pressure sensitive module 310 of setting, set pressure sensitive module 310 is identical with the shape of specific pressurized zone.Specifically,
Pressure sensitive module 310 may be provided in the specific pressurized zone of clothes outer surface or clothes interlayer specific pressurized zone
On.Using this setup, it on the one hand can make pressure sensitive module 310 is sensitiveer, sense human body exactly to act on
Pressure in pressure sensitive module 310, on the other hand can avoid pressure sensitive module 310 directly and human contact, add
The usage comfort of user, another further aspect can reduce abrasion of the human body to pressure sensitive module 310, extend pressure sensitive module
310 service life.
The setting schematic diagram of pressure sensitive module in the pressure sore prevention alarm set embodiment one that Fig. 4 provides for the present invention
Three, as shown in figure 4, by pressure sensitive module 410 be fabricated to pressurized zone shape identical sucker, directly adsorb in human body skin
Skin surface.Wherein, dash area is the pressure sensitive module 410 of setting in Fig. 4.This setup can make pressure sensitive
Module 410 is sensitiveer, sensing human body is acted in pressure sensitive module 410 exactly pressure.
In addition, in addition to the set-up mode of above-mentioned three kinds of pressure sensitive modules, those skilled in the art can also basis
The other set-up modes of selection are actually needed, are not limited herein.For example, pressure sensitive module can be arranged on to mattress outer surface
Pressurized zone on and the pressurized zone of pillow outer surface on, or pressure sensitive module can be arranged on seat cushion or wheelchair.
Fig. 5 for pressure sensitive module, signal processing module in the pressure sore prevention alarm set embodiment one that provides of the present invention with
The connection signal block diagram of signal analysis control module, as shown in figure 5, signal processing module 120 includes：Rectification module 121, filtering
Module 122, amplification module 123 and analog-to-digital conversion module 124.Wherein, rectification module 121 is connected with pressure sensitive module 110, is used
Rectification processing is carried out in the electric pressure signal exported to pressure sensitive module 110；Filtration module 122 is connected with rectification module 121,
For being filtered processing, filtering clutter to the electric pressure signal after rectified processing；Amplification module 123 and filtration module 122
Connection, for being amplified processing to the electric pressure signal after filtered processing；Analog-to-digital conversion module 124 and amplifying circuit 123
Connection, the electric pressure signal of the simulation for amplification module 123 to be exported is converted to corresponding digital electric pressure signal, so that
Signal analysis control module 130 can be analyzed the electric pressure signal.Wherein, above-mentioned module can be according to art technology
Being actually needed for personnel is configured, and is not limited herein.If for example, the electric pressure signal that pressure sensitive module 110 is exported
Rectification processing need not be carried out, then can save rectification module 121.
Signal processing module, signal analysis control mould in the pressure sore prevention alarm set embodiment one that Fig. 6 provides for the present invention
Block and the connection signal block diagram of warning reminding module, as shown in fig. 6, signal analysis control module 130 includes：Central control module
131st, the first timer 132 and the second timer 133.
Wherein, central control module 131 is connected with the timer 132 of signal processing module 120 and first, for judging signal
Whether the electric pressure signal after the processing of processing module 120 is more than or equal to preset pressure electric signal threshold value, if so, then starting first
Timer 132 carries out timing, obtains the first timing time.Those skilled in the art can set preset pressure electricity according to actual needs
Signal threshold value, is not limited herein.
Central control module 131 is connected with the timer 133 of warning reminding module 140 and second, is additionally operable to judge the first meter
When device 132 the first timing time whether more than the first preset time threshold, if so, then exporting alarm control signal, and start
Second timer 133 carries out timing, obtains the second timing time.Those skilled in the art can set first pre- according to actual needs
If time threshold, do not limit herein.For example, the first preset time threshold can be set to 120 minutes.Warning reminding module
140 alarm control signals exported according to central control module 131 carry out alarm, to point out medical personnel and/or monitoring
Personnel need to stand up user.
Central control module 131 is additionally operable to judge whether the second timing time of the second timer 133 is default more than second
Time threshold, if so, then according to the electric pressure signal after processing, judging whether to stand up user.Art technology
Personnel can set the second preset time threshold according to actual needs, not limit herein.For example, when the second preset time threshold is set
When being set to 5 minutes, user is stood up equivalent to medical personnel and/or the care provider time of 5 minutes is given.If in
Centre control module 131 judges to obtain the second timing time of the second timer 133 more than the second preset time threshold, then center control
Molding block 131 judges whether to stand up user according to the electric pressure signal after the processing of signal processing module 120.
If central control module 131 judges to obtain standing up user, the first timer 132 and the second meter are reset
When device 133；If central control module 131 judges to obtain not standing up user, the first timer 132 is reset, by second
Second timing time of timer 133 is added to the first timer 132, starts the first timer 132 and continues timing, and resets the
Two timers 133, store the time do not stood up to user and number of times.
For example, when central control module 131 judges to obtain not standing up user, now second timer 133
Second timing time is 5 minutes, then reset the first timer 132, the first meter was added to by 5 minutes of the second timer 133
When device 132, start the first timer 132 continue timing.That is, the first timer 132 is to continue to count since 5 minutes
When.In the present invention, the first timer 132 proceeds timing after being accumulated the second timing time of the second timer 133, from
And the time that user should actually be stood up next time can be measured, and then the alarm that can be carried out exactly next time is carried
Show.In addition, when central control module 131 judges to obtain not standing up user, also storage is not turned over to user every time
Time corresponding to body and the total degree not stood up to user.
Specifically, signal analysis control module 130 can be microcontroller or microcontroller chip, for example, TI low-power consumption
Chip MSP430,51 series monolithics, ARM series monolithics etc., or the work(for using a variety of circuits to realize microcontroller jointly
Can, or more combination, those skilled in the art can as needed be selected, not limited herein.
Wherein, the internal electric source that the pressure sore prevention alarm set that the present embodiment is provided uses signal analysis control module enters
Row power supply, therefore be not shown, naturally it is also possible to single power module is used for each mould in pressure sore prevention alarm set
Block is powered, and is not limited herein.
The setting schematic diagram four of pressure sensitive module that Fig. 7 provides for the present invention, as shown in fig. 7, by 4 pressure sensitive moulds
Block is arranged in the pressurized zone of in the pressurized zone of pillow outer surface and mattress outer surface and is specifically described, it should be understood that
It is that the quantity of pressure sensitive module can be adjusted flexibly according to actual needs.As shown in fig. 7, the compressive region of pillow outer surface
Two pressure sensitive modules are provided with domain, the two pressure sensitive modules are respectively pressure sensitive modules A and pressure sensitive mould
Block B；Two pressure sensitive modules are also equipped with the pressurized zone of mattress outer surface, the two pressure sensitive modules are respectively pressure
Power induction module C and pressure sensitive module D.If by human body lie flat on the bed on the basis of direction, pressure sensitive modules A and pressure
Body on the left of body region on the right side of induction module C correspondence human bodies, pressure sensitive module B human bodies corresponding with pressure sensitive module D
Body region.
The original state using human body is specifically described as lying status below.
Medical personnel and/or care provider can be configured to the first preset time threshold and the second preset time threshold,
For example, the first preset time threshold is set to 120 minutes, the second preset time threshold is set to 5 minutes.
When user lies flat on the bed, pressure sensitive modules A, pressure sensitive module B, pressure sensitive module C and pressure sensitive
Module D can sense that human body acts on pressure thereon, and corresponding electric pressure signal, i.e. electric pressure signal A, pressure are produced respectively
Force electrical signal B, electric pressure signal C and electric pressure signal D, and by electric pressure signal A, electric pressure signal B, electric pressure signal C and
Electric pressure signal D is exported to signal processing module.
Signal processing module is to the electric pressure signal A received, electric pressure signal B, electric pressure signal C and electric pressure signal
D processing, then exports the electric pressure signal A after processing, electric pressure signal B, electric pressure signal C and electric pressure signal D
To signal analysis control module.
Central control module in signal analysis control module receive the electric pressure signal A after signal processing module processing,
Electric pressure signal B, electric pressure signal C and electric pressure signal D, the pressure after electric pressure signal A and processing after then judgement is handled
Whether force electrical signal B is more than or equal to the first preset pressure electric signal threshold value, and judges the electric pressure signal C after processing and place
Whether the electric pressure signal D after reason is more than or equal to the second preset pressure electric signal threshold value.If it is determined that the pressure after being handled
The pressure that force electrical signal A is more than or equal to after the first preset pressure electric signal threshold value, and processing with the electric pressure signal B after processing
Force electrical signal C is more than or equal to the second preset pressure electric signal threshold value with the electric pressure signal D after processing, then illustrates that user lies low
In bed, then central control module starts the first timer and carries out timing, obtains the first timing time.
Central control module judges that the first timing time of the first timer whether more than the first preset time threshold, that is, is sentenced
Whether the first timing time of disconnected first timer is more than 120 minutes.If central control module judges to obtain the first timer
The first timing time more than the first preset time threshold, then export alarm control signal, and start the second timer and counted
When, obtain the second timing time.That is, when the time that user lies flat on the bed was more than 120 minutes, just output alarm control
Signal processed, and start the progress timing of the second timer.
The alarm control signal that warning reminding module is exported according to central control module carries out alarm, to point out medical care
Personnel and/or care provider need to stand up user, it is to avoid pressure sore occurs in user.
Central control module judges that the second timing time of the second timer whether more than the second preset time threshold, that is, is sentenced
Whether the second timing time of disconnected second timer is more than 5 minutes.If central control module judges to obtain the second timer
Second timing time is more than the second preset time threshold, then the pressure electricity after central control module is handled according to signal processing module
Signal, judges whether to stand up user.
Specifically, if in the second timing time, received only being exported by pressure sensitive modules A and through signal
Electric pressure signal A ' after reason resume module and exported by pressure sensitive module C and the pressure after handling through signal processing module
Force electrical signal C ', wherein, the electric pressure signal A ' after processing is more than or equal to the first preset pressure electric signal threshold value, and handles
Electric pressure signal C ' afterwards is more than or equal to the second preset pressure electric signal threshold value, illustrates that user lies on a bed to the right, then
Central control module judges to obtain standing up user；If in the second timing time, received only by pressure sensitive
Module B outputs and the electric pressure signal B ' after being handled through signal processing module and exported by pressure sensitive module D and pass through
Electric pressure signal D ' after signal processing module processing, wherein, the electric pressure signal B ' after processing, which is more than or equal to first, to be preset
Electric pressure signal D ' after electric pressure signal threshold value, and processing is more than or equal to the second preset pressure electric signal threshold value, explanation
User lies on a bed to the left, then central control module judges to obtain standing up user；In addition to above-mentioned two situations,
Central control module can then judge to obtain not standing up user.
If central control module judges to obtain standing up user, the first timer and the second timing are reset
Device, alarm next time is carried out so as to follow-up.
If central control module judges to obtain not standing up user, the first timer is reset, by the second timing
Second timing time of device is added to the first timer, starts the first timer and continues timing, and resets the second timer, storage
The time do not stood up to user and number of times.
The functional block diagram for the pressure sore prevention alarm set embodiment two that Fig. 8 provides for the present invention, as shown in figure 8, against pressure
The difference of sore alarm set embodiment two and pressure sore prevention alarm set embodiment one is：Pressure sore prevention alarm set embodiment two is also
Display module 150 and radio receiving transmitting module 160 are inputted including information.
Information input display module 150 is connected with signal analysis control module 130, for inputting preset time threshold, and
The analysis result that the analysis of signal analysis control module 130 is obtained is shown to user.Specifically, display module can be inputted by information
150 the first preset time thresholds of input and the second preset time threshold, also can input display module 150 by information and check every time
Time corresponding to not stood up to user and the total degree not stood up to user.
Radio receiving transmitting module 160 is connected with signal analysis control module 130, for by 130 points of signal analysis control module
Obtained analysis result is analysed wirelessly to send to terminal device.For example, radio receiving transmitting module 160 will be every time to user
Time corresponding to being stood up and the total degree not stood up to user are wirelessly sent to terminal device, so as to
The medical personnel or care provider of terminal equipment side are checked.
The functional block diagram for the pressure sore prevention alarm set embodiment three that Fig. 9 provides for the present invention, as shown in figure 9, against pressure
The difference of sore alarm set embodiment three and pressure sore prevention alarm set embodiment two is：Pressure sore prevention alarm set embodiment three is also
Including：Histanoxia monitoring modular 170, temperature monitoring module 180 and humidity monitoring module 190.
Wherein, histanoxia monitoring modular 170 is connected with signal analysis control module 130, for monitoring at pressurized zone
Tissue anaerobic condition, produce anoxic electric signal, and by the anoxic electric signal output of generation to signal analysis control mould
Block 130；Temperature monitoring module 180 is connected with signal analysis control module 130, for monitoring the tissue table at pressurized zone
The temperature in face, produces temperature signal, and the temperature signal of generation is exported to signal analysis control module 130；Humidity is supervised
Survey module 190 to be connected with signal analysis control module 130, the humidity for monitoring the human tissue surface at pressurized zone, production
Raw humidity electric signal, and by the humidity electric signal output of generation to signal analysis control module 130.
Present invention also offers a kind of pressure sore prevention system for prompting, the pressure sore prevention system for prompting includes：Above-mentioned pressure sore prevention is carried
Awake device and terminal device；Wherein, terminal device is connected with pressure sore prevention alarm set, for receiving pressure sore prevention alarm set point
Obtained analysis result is analysed, and is sent for controlling the control of the signal analysis control module in pressure sore prevention alarm set to refer to
Order.Specifically, control instruction may include：For the open command of open signal analysis and Control module work and for termination signal
The command for stopping of analysis and Control module work.It should be noted that pressure sore prevention alarm set can be in the way of radio communication and end
End equipment is connected, it is possibility to have the mode of line communication is connected with terminal device, is not limited herein.If pressure sore prevention alarm set with
The mode of radio communication is connected with terminal device, then pressure sore prevention alarm set includes radio receiving transmitting module；If pressure sore prevention is reminded
Device is connected in the way of wire communication with terminal device, then does not include radio receiving transmitting module, terminal in pressure sore prevention alarm set
Equipment is directly connected with the signal analysis control module in pressure sore prevention alarm set.
Specifically, the corresponding pressure sore prevention system for prompting of pressure sore prevention alarm set embodiment two that Figure 10 provides for the present invention
Functional block diagram, as shown in Figure 10, the pressure sore prevention system for prompting include：Pressure sore prevention alarm set 1010 and terminal device
1020.Wherein, the pressure sore prevention alarm set embodiment two that the pressure sore prevention alarm set 1010 provides for the present invention.Terminal device
1020 are connected with communication with pressure sore prevention alarm set 1010, are obtained for receiving the analysis of pressure sore prevention alarm set 1010
Analysis result, and send for controlling the control of the signal analysis control module 130 in pressure sore prevention alarm set 1010 to refer to
Order.Specifically, radio receiving transmitting module 160 of the terminal device 1020 in the way of radio communication and in pressure sore prevention alarm set 1010
Connection, obtained analysis result is analyzed for receiving the signal analysis control module 130 of the transmission of radio receiving transmitting module 160, and
Control instruction for control signal analysis and Control module 130 is sent to radio receiving transmitting module 160.Specifically, control instruction can
Including：For the open command of the work of open signal analysis and Control module 130 and for the work of termination signal analysis and Control module 130
The command for stopping of work.
In addition, the first preset time threshold and the second preset time threshold can be also set by terminal device 1020, and will
The first preset time threshold and the second preset time threshold set is sent to radio receiving transmitting module 160, then need not then be adopted
150 pair of first preset time threshold of display module is inputted with information and the second preset time threshold is configured.
In the various embodiments described above, friction generator is three-decker, four-layer structure, five layers of membrane structure or five between two parties
The friction generator of layer intervening electrode structure, friction generator comprises at least two surfaces for constituting frictional interface, triboelectricity
Machine at least has the first electrode layer and the second electrode lay for constituting signal output part.The two of frictional interface is constituted in friction generator
Array of protrusions structure is provided with least one surface in individual surface.Wherein, array of protrusions structure is multiple salient points according to square
Shape or diamond array are constituted, or for multiple banded structures according to geometry be arranged in the both sides at least one surface, corner,
On edge or whole surface.Alternatively, the shape of salient point can be cylinder, four prism type or pyramid shape etc., herein
It is not especially limited；Banded structure can be arranged according to the array of shapes of well word, fork word, zebra line style, cross or mouth word, herein
It is not especially limited.
Specifically, when friction generator is the friction generator of three-decker, friction generator can be set including stacking
First electrode layer, the first high molecular polymer insulating barrier and the second electrode lay, first electrode layer and the first high molecular polymerization put
Frictional interface is formed between thing insulating barrier.When friction generator is the friction generator of four-layer structure, friction generator can be with
Including the first electrode layer being stacked, the first high molecular polymer insulating barrier, the second high molecular polymer insulating barrier and second
Electrode layer, frictional interface is formed between the first high molecular polymer insulating barrier and the second high molecular polymer insulating barrier.Work as friction
Generator be five layers between two parties the friction generator of membrane structure when, friction generator can include the first electrode that is stacked
Layer, between two parties the first high molecular polymer insulating barrier, film layer, the second high molecular polymer insulating barrier and the second electrode lay, between two parties
Film layer forms frictional interface between the first high molecular polymer insulating barrier and the second high molecular polymer insulating barrier respectively.When
When friction generator is the friction generator of five layers of intervening electrode structure, friction generator includes the first electrode being stacked
Layer, the first high molecular polymer insulating barrier, intervening electrode layer, the second high molecular polymer insulating barrier and the second electrode lay, are occupied
Between electrode layer form frictional interface between the first high molecular polymer insulating barrier and the second high molecular polymer insulating barrier respectively.
When friction generator includes two layers of high molecular polymer insulating barrier, the first high molecular polymer insulating barrier therein can be electricity
Positivity high molecular polymer insulating barrier, the second high molecular polymer insulating barrier can be electronegativity high molecular polymer insulating barrier.
Figure 11 is the cross section structure schematic diagram of the friction generator of three-decker, and as shown in figure 11, friction generator includes
First electrode layer 1101, the first high molecular polymer insulating barrier 1102 and the second electrode lay 1103 being stacked, wherein, first
Frictional interface, the first high molecular polymer insulating barrier are formed between the high molecular polymer insulating barrier 1102 of electrode layer 1101 and first
The array of protrusions structure 1104 of pyramid shape is provided with 1102.When the insulation of the high molecular polymer of first electrode layer 1101 and first
During the contact friction of layer 1102, array of protrusions structure 1104 can make the high molecular polymer insulating barrier of first electrode layer 1101 and first
1102 apparent surface better contacts with friction, and induces at first electrode layer 1101 and the second electrode lay 1103 more
Electric charge.
The above-mentioned pressure sore prevention alarm set and system provided according to the present invention, is acted on by pressure sensitive module senses human body
Pressure in pressure sensitive module, output pressure electric signal is then exported by signal processing module to pressure sensitive module
Electric pressure signal handled, by signal analysis control module to signal processing module processing after electric pressure signal carry out
Analysis, obtains analysis result, and exports alarm control signal according to analysis result, and then warning reminding module is according to controlling alarm
Signal carries out alarm.The pressure sore prevention alarm set and system that the present invention is provided utilize friction generator and/or piezo-electric generating
Whether machine sensing human body is in pressured state, not only convenient for users, and improves sensing sensitivity and accurate
Degree, reduces rate of false alarm；In addition, the pressure sore prevention alarm set that provides of the present invention and system have structure and manufacture craft it is simple,
Advantage with low cost, is adapted to large-scale industrial production.
Present invention also offers a kind of pressure sore prevention based reminding method, this method includes：Utilize pressure sensitive module senses human body
The pressure acted in pressure sensitive module, output pressure electric signal, wherein, pressure sensitive module includes at least one friction hair
Motor and/or at least one piezoelectric generator；The electric pressure signal that pressure sensitive module is exported is handled, obtained through processing
Electric pressure signal afterwards；Electric pressure signal after processing is analyzed, analysis result is obtained, and export according to analysis result
Alarm control signal；Alarm is carried out according to alarm control signal.
The schematic flow sheet for the pressure sore prevention based reminding method embodiment one that Figure 12 provides for the present invention, as shown in figure 12, the party
Method comprises the following steps：
Step S1201, the pressure acted on using pressure sensitive module senses human body in pressure sensitive module, output pressure
Electric signal.
Wherein, pressure sensitive module be may be disposed on bedding or clothes, it is preferable that pressure sensitive module 110 is set
In in the specific pressurized zone of bedding or in the specific pressurized zone of clothes.Furthermore it is also possible to by pressure sensitive module system
Be made with pressurized zone shape identical sucker, directly adsorb in human skin.Specific pressure sensitive module setting side
Formula can refer to the set-up mode to pressure sensitive module in pressure sore prevention alarm set embodiment one, and here is omitted.
Pressure sensitive module includes at least one friction generator and/or at least one piezoelectric generator.Pressure sensitive mould
The quantity of block can be one, or multiple, those skilled in the art can be selected according to actual needs, not done herein
Limit.Specifically, friction generator can be for three-decker, four-layer structure, five layers membrane structure or five layers are electric between two parties between two parties
The friction generator of pole structure, friction generator is comprised at least in two surfaces for constituting frictional interface, friction generator and constituted
Array of protrusions structure is provided with least one surface in two surfaces of frictional interface.Piezoelectric generator can be zinc oxide
Generator, piezoelectric ceramic generator, Kynoar generator, porous polypropylene generator or porous Teflon generate electricity
Machine.
Step S1202, is handled the electric pressure signal that pressure sensitive module is exported, and obtains the electricity of the pressure after processing
Signal.
Specifically, in step S1202, rectification, filtering, amplification are carried out to the electric pressure signal that pressure sensitive module is exported
Processing, is then converted to corresponding digital electric pressure signal by the electric pressure signal of the simulation after amplified processing.
Step S1203, is analyzed the electric pressure signal after processing, obtains analysis result, and according to analysis result
Export alarm control signal.
Step S1204, alarm is carried out according to alarm control signal.
Specifically, can be according to alarm control signal with sound and/or light form progress alarm.
Alternatively, analyzed to the electric pressure signal after processing, obtain analysis result, and it is defeated according to analysis result
Go out after alarm control signal, this method also includes：Pass through nothing to the step of user's display analysis result and/or by analysis result
The step of line mode is sent to terminal device.
The schematic flow sheet for the pressure sore prevention based reminding method embodiment two that Figure 13 provides for the present invention, as shown in figure 13, the party
Method comprises the following steps：
Step S1301, the pressure acted on using pressure sensitive module senses human body in pressure sensitive module, output pressure
Electric signal.
Step S1302, is handled the electric pressure signal that pressure sensitive module is exported, and obtains the electricity of the pressure after processing
Signal.
Step S1303, judges whether the electric pressure signal after processing is more than or equal to preset pressure electric signal threshold value；If
It is then to perform step S1304；If it is not, then performing step S1301.
Those skilled in the art can set preset pressure electric signal threshold value according to actual needs, not limit herein.If
Pressure sensitive module is arranged on bedding, when judgement obtains the electric pressure signal after processing more than or equal to preset pressure
During electric signal threshold value, illustrate that user lies on a bed.
Step S1304, starts the first timer and carries out timing, obtain the first timing time.
Whether step S1305, judge the first timing time of the first timer more than the first preset time threshold；If so,
Then perform step S1306；If it is not, then performing step S1305.
Those skilled in the art can set the first preset time threshold according to actual needs, not limit herein.For example, can
First preset time threshold is set to 120 minutes.If it is determined that obtaining the first timing time of the first timer more than first
Preset time threshold, then perform step S1306；If it is determined that the first timing time for obtaining the first timer is pre- not less than first
If time threshold, then step S1305 is continued executing with.
Step S1306, exports alarm control signal.
Judging to obtain feelings of first timing time more than the first preset time threshold of the first timer through step S1305
Under condition, alarm control signal is exported.
Step S1307, alarm is carried out according to alarm control signal.
Specifically, can be according to alarm control signal with sound and/or light form progress alarm, so as to point out medical care
Personnel and/or care provider need to stand up user.
Step S1308, starts the second timer and carries out timing, obtain the second timing time.
Whether step S1309, judge the second timing time of the second timer more than the second preset time threshold；If so,
Then perform step S1310；If it is not, then performing step S1309.
Those skilled in the art can set the second preset time threshold according to actual needs, not limit herein.For example, can
Second preset time threshold is set to 5 minutes.If it is determined that the second timing time for obtaining the second timer is pre- more than second
If time threshold, then step S1310 is performed；If it is determined that the second timing time for obtaining the second timer is default not less than second
Time threshold, then continue executing with step S1309.
Step S1310, according to the electric pressure signal after processing, judges whether to stand up user；If so, then holding
Row step S1311；If it is not, then performing step S1312.
Judging to obtain feelings of second timing time more than the second preset time threshold of the second timer through step S1310
Under condition, according to the electric pressure signal after processing, judge whether to stand up user.
Step S1311, resets the first timer and the second timer.
Step S1312, the first timer is added to by the second timing time of the second timer, start the first timer after
Continuous timing, and reset the second timer.
In the present invention, the second timing time of the second timer is added to the first timer, then starts first and count
When device proceed timing, so as to measure the time that user should actually be stood up next time, and then can be accurate
Ground carries out alarm next time.
Step S1313, stores the time do not stood up to user and number of times.
Alternatively, this method may also include：Utilize the tissue at histanoxia monitoring module monitors pressurized zone
Anaerobic condition, the step of producing anoxic electric signal；And/or, monitor the tissue at pressurized zone using temperature monitoring module
The temperature on surface, the step of producing temperature signal；And/or, monitor the human body group at pressurized zone using humidity monitoring module
The humidity on surface is knitted, the step of producing humidity electric signal.
The above-mentioned pressure sore prevention based reminding method provided according to the present invention, is sensed using friction generator and/or piezoelectric generator
Whether human body is in pressured state, not only convenient for users, and improves sensing sensitivity and the degree of accuracy, reduces
Rate of false alarm.
The various modules that are previously mentioned in the present invention, circuit are by hard-wired circuit, for example, signal analysis controls mould
Block can include microcontroller or microcontroller chip, and warning reminding module may include loudspeaker and/or LED, and rectification module can
Including rectification circuit, filtration module may include comparison circuit, and amplification module may include amplifying circuit etc., and analog-to-digital conversion module can be wrapped
Include analog-digital converter etc..Although some of which module, circuit are integrated with software, the claimed present invention is integrated software pair
The hardware circuit for the function of answering, and not exclusively software is in itself.
It should be appreciated by those skilled in the art that the apparatus structure shown in accompanying drawing or embodiment is only schematical, table
Show logical construction.The module wherein shown as separating component is probably or may not be physically separate, is used as module
The part of display is probably or may not be physical module.
Finally it should be noted that be：Listed above is only the specific embodiment of the present invention, the technology of certain this area
Personnel can be modified and modification to the present invention, if these modifications and variations belong to the claims in the present invention and its equivalent skill
Within the scope of art, protection scope of the present invention is considered as.
Claims (19)
1. a kind of pressure sore prevention alarm set, it is characterised in that including：Pressure sensitive module, signal processing module, signal analysis control
Molding block and warning reminding module；Wherein,
The pressure sensitive module includes at least one friction generator and/or at least one piezoelectric generator, for sensing people
The pressure that body is acted in the pressure sensitive module, output pressure electric signal；
The signal processing module is connected with the pressure sensitive module, for the pressure electricity exported to the pressure sensitive module
Signal is handled；
The signal analysis control module is connected with the signal processing module, after to signal processing module processing
Electric pressure signal is analyzed, and obtains analysis result, and export alarm control signal according to the analysis result；
The warning reminding module is connected with the signal analysis control module, for being reported according to the alarm control signal
Alert prompting.
2. pressure sore prevention alarm set according to claim 1, it is characterised in that the signal analysis control module includes：
Central control module, the first timer and the second timer；Wherein,
The central control module is connected with the signal processing module and first timer, for judging at the signal
Manage whether the electric pressure signal after resume module is more than or equal to preset pressure electric signal threshold value, if so, then starting described first
Timer carries out timing, obtains the first timing time；
The central control module is connected with the warning reminding module and second timer, is additionally operable to judge described first
Whether the first timing time of timer is more than the first preset time threshold, if so, then exporting alarm control signal, and starts institute
State the second timer and carry out timing, obtain the second timing time；
When the central control module is additionally operable to judge whether the second timing time of second timer is default more than second
Between threshold value, if so, then according to the signal processing module handle after electric pressure signal, judge whether to turn over user
Body.
3. pressure sore prevention alarm set according to claim 2, it is characterised in that the central control module is further used
In：
If the central control module judges to obtain standing up user, first timer and described second are reset
Timer；If the central control module judges to obtain not standing up user, first timer is reset, will be described
Second timing time of the second timer is added to first timer, starts first timer and continues timing, and clearly
Second timer described in zero, stores the time do not stood up to user and number of times.
4. pressure sore prevention alarm set according to claim 1, it is characterised in that the signal processing module includes：Rectification
Module, filtration module, amplification module and analog-to-digital conversion module；Wherein,
The rectification module is connected with the pressure sensitive module, for the electric pressure signal exported to the pressure sensitive module
Carry out rectification processing；
The filtration module is connected with the rectification module, for being filtered place to the electric pressure signal after rectified processing
Reason；
The amplification module is connected with the filtration module, for being amplified place to the electric pressure signal after filtered processing
Reason；
The analog-to-digital conversion module is connected with the amplifying circuit, for the pressure telecommunications for the simulation for exporting the amplification module
Number be converted to corresponding digital electric pressure signal.
5. pressure sore prevention alarm set according to claim 1, it is characterised in that the pressure sore prevention alarm set also includes：
Information inputs display module and/or radio receiving transmitting module；
Wherein, described information input display module is connected with the signal analysis control module, for inputting preset time threshold,
And show the analysis result that the signal analysis control module analysis is obtained to user；
The radio receiving transmitting module is connected with the signal analysis control module, for the signal analysis control module to be analyzed
Obtained analysis result is wirelessly sent to terminal device.
6. pressure sore prevention alarm set according to claim 1, it is characterised in that the pressure sore prevention alarm set also includes：
Histanoxia monitoring modular, temperature monitoring module and/or humidity monitoring module；
Wherein, the histanoxia monitoring modular is connected with the signal analysis control module, for monitoring at pressurized zone
The anaerobic condition of tissue, produces anoxic electric signal；
The temperature monitoring module is connected with the signal analysis control module, for monitoring the tissue table at pressurized zone
The temperature in face, produces temperature signal；
The humidity monitoring module is connected with the signal analysis control module, for monitoring the tissue table at pressurized zone
The humidity in face, produces humidity electric signal.
7. the pressure sore prevention alarm set according to claim any one of 1-6, it is characterised in that the pressure sensitive module is set
It is placed in the specific pressurized zone of bedding or in the specific pressurized zone of clothes.
8. pressure sore prevention alarm set according to claim 1, it is characterised in that the friction generator be three-decker,
Four-layer structure, the friction generator of five layers of membrane structure or five layers of intervening electrode structure between two parties；The friction generator is at least
Include two surfaces for constituting frictional interface；The piezoelectric generator is zinc oxide generator, piezoelectric ceramic generator, gathers inclined fluorine
Any of ethene generator, porous polypropylene generator and porous Teflon generator.
9. pressure sore prevention alarm set according to claim 8, it is characterised in that friction circle is constituted in the friction generator
Array of protrusions structure is provided with least one surface in two surfaces in face.
10. a kind of pressure sore prevention based reminding method, it is characterised in that including：
The pressure acted on using pressure sensitive module senses human body in the pressure sensitive module, output pressure electric signal；Its
In, pressure sensitive module includes at least one friction generator and/or at least one piezoelectric generator；
The electric pressure signal that the pressure sensitive module is exported is handled, the electric pressure signal after processing is obtained；
Electric pressure signal after processing is analyzed, analysis result is obtained, and according to analysis result output alarm control
Signal processed；
Alarm is carried out according to the alarm control signal.
11. pressure sore prevention based reminding method according to claim 10, it is characterised in that the described pair of pressure telecommunications after processing
Number analyzed, obtain analysis result, and alarm control signal is exported according to the analysis result further comprising：
Judge whether the electric pressure signal after processing is more than or equal to preset pressure electric signal threshold value, if so, then starting first
Timer carries out timing, obtains the first timing time；
Whether the first timing time of first timer is judged more than the first preset time threshold, if so, then output alarm
Control signal, and start the progress timing of the second timer, obtain the second timing time；
Whether the second timing time of second timer is judged more than the second preset time threshold, if so, then according to through place
Electric pressure signal after reason, judges whether to stand up user.
12. pressure sore prevention based reminding method according to claim 11, it is characterised in that methods described also includes：
If judgement obtains standing up user, first timer and second timer are reset；If judging
To not stood up to user, then first timer is reset, the second timing time of second timer is added to
First timer, starts first timer and continues timing, and resets second timer, and storage is not entered to user
Time and number of times that row is stood up.
13. pressure sore prevention based reminding method according to claim 10, it is characterised in that described defeated to the pressure sensitive module
The electric pressure signal gone out is handled, and is obtained the electric pressure signal after processing and is further comprised：
Rectification, filtering, enhanced processing are carried out to the electric pressure signal that the pressure sensitive module is exported；
The electric pressure signal of simulation after amplified processing is converted into corresponding digital electric pressure signal.
14. pressure sore prevention based reminding method according to claim 10, it is characterised in that in the described pair of pressure electricity after processing
Signal is analyzed, and obtains analysis result, and after exporting alarm control signal according to the analysis result, methods described is also wrapped
Include：
The analysis result is shown to user；And/or,
The analysis result is wirelessly sent to terminal device.
15. pressure sore prevention based reminding method according to claim 10, it is characterised in that methods described also includes：
Using the anaerobic condition of the tissue at histanoxia monitoring module monitors pressurized zone, anoxic electric signal is produced；With/
Or,
The temperature of the human tissue surface at pressurized zone is monitored using temperature monitoring module, temperature signal is produced；And/or,
The humidity of the human tissue surface at pressurized zone is monitored using humidity monitoring module, humidity electric signal is produced.
16. the pressure sore prevention based reminding method according to claim any one of 10-15, it is characterised in that the pressure sensitive mould
Block is arranged in the specific pressurized zone of bedding or in the specific pressurized zone of clothes.
17. pressure sore prevention based reminding method according to claim 10, it is characterised in that the friction generator is three-layered node
Structure, four-layer structure, the friction generator of five layers of membrane structure or five layers of intervening electrode structure between two parties；The friction generator is extremely
It is few to include two surfaces for constituting frictional interface；The piezoelectric generator is zinc oxide generator, piezoelectric ceramic generator, gathers inclined
Any of PVF generator, porous polypropylene generator and porous Teflon generator.
18. pressure sore prevention based reminding method according to claim 17, it is characterised in that friction is constituted in the friction generator
Array of protrusions structure is provided with least one surface in two surfaces at interface.
19. a kind of pressure sore prevention system for prompting, it is characterised in that including：Pressure sore prevention as described in claim any one of 1-9 is reminded
Device and terminal device；
Wherein, the terminal device is connected with the pressure sore prevention alarm set, for receiving the pressure sore prevention alarm set analysis
Obtained analysis result, and send for controlling the control of the signal analysis control module in the pressure sore prevention alarm set to refer to
Order.
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| CN110403573A (en) * | 2019-07-19 | 2019-11-05 | 深圳大学 | The automatic early warning method and system at position are easily sent out in a kind of human body pressure sore |
| CN111243721A (en) * | 2020-03-02 | 2020-06-05 | 毛红玲 | High-risk patient medical central control system and method based on embedded wireless communication module |
| CN111449864A (en) * | 2020-04-28 | 2020-07-28 | 嘉兴市第二医院 | Flexible detection circuit intelligent bed and detection method thereof |
| CN112634586A (en) * | 2020-12-30 | 2021-04-09 | 南华大学附属南华医院 | Pressure sore prevention reminding device |
| CN113274211A (en) * | 2021-06-30 | 2021-08-20 | 中国人民解放军陆军军医大学第一附属医院 | Intelligent medical sick bed that stands up |
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