CN109620986A - The decontamination system and control method and terminal of a kind of Breathing Suppotion equipment - Google Patents
The decontamination system and control method and terminal of a kind of Breathing Suppotion equipment Download PDFInfo
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- CN109620986A CN109620986A CN201811501705.6A CN201811501705A CN109620986A CN 109620986 A CN109620986 A CN 109620986A CN 201811501705 A CN201811501705 A CN 201811501705A CN 109620986 A CN109620986 A CN 109620986A
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- ozone generator
- unit
- ozone
- circulation loop
- fan
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/20—Gaseous substances, e.g. vapours
- A61L2/202—Ozone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/24—Apparatus using programmed or automatic operation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/26—Accessories or devices or components used for biocidal treatment
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B11/00—Automatic controllers
- G05B11/01—Automatic controllers electric
- G05B11/36—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential
- G05B11/42—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential for obtaining a characteristic which is both proportional and time-dependent, e.g. P.I., P.I.D.
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/10—Apparatus features
- A61L2202/14—Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/20—Targets to be treated
- A61L2202/24—Medical instruments, e.g. endoscopes, catheters, sharps
Abstract
The invention discloses a kind of decontamination system of Breathing Suppotion equipment and control methods and terminal, system includes Breathing Suppotion equipment pipeline to be sterilized, produces ozoniferous ozone generator, for by the blower and circulation pipe of ozone dissipation and flowing, the Breathing Suppotion equipment pipeline, blower and circulation pipe are interconnected to form circulation loop, and the ozone generator and circulation loop are connected as circulation loop for ozone.This system generates ozone by ozone generator, and the recycling sterilizing in Breathing Suppotion equipment circulation line does not need user and unpicks and washes, while decreasing other costs of user.While meeting sterilization function, improve user using efficient and convenient property.
Description
Technical field
The present invention relates to the decontamination systems and control of Breathing Suppotion equipment technical field more particularly to a kind of Breathing Suppotion equipment
Method and terminal processed.
Background technique
Breathing Suppotion equipment, common is exactly ventilator, and ventilator prolonged use can be bred greatly in respiratory siphon
The germ of amount, and in order to reduce noise as far as possible, wrapping up around blower largely can not clean sound-proof material.A large amount of dusts in order to prevent
It is directly added into air flue and protection blower, air intake passage there are a large amount of filter cottons, and in order to smaller and light, most of machine will not be incited somebody to action
Gas circuit and circuit separate, and germ can drop to easily on warm fan blade.Once breeding germ, air-flow is enough to drive entire disease
Flora enters human body by breathing pipeline, causes very big threat to human health.So ventilator is every now uses one section
After time, it is necessary to carry out disinfection cleaning to external pipeline, mask and ventilator internal duct.
Mainly there is artificial disinfection to the common sterilization method of home ventilator at present, i.e., disassemble breathing pipeline etc.,
It is put into impregnate in disinfectant and carries out cleaning-sterilizing.Or carried out disinfection using ventilator specialized sterilizing machine or disinfection treasured, such as
CN201520408256.6 discloses a kind of ventilator specialized sterilizing machine, is disappeared by independent sterilizing machine to ventilator
Poison.Both modes are all comparatively laborious, low efficiency, and at high cost, time-consuming and laborious.
Summary of the invention
In view of this, the decontamination system and control method and terminal of a kind of Breathing Suppotion equipment of the invention, this system is logical
It crosses ozone generator and generates ozone, the recycling sterilizing in Breathing Suppotion equipment circulation line does not need user and unpicks and washes, simultaneously
Decrease other costs of user.While meeting sterilization function, improve user using efficient and convenient property.
A kind of decontamination system of Breathing Suppotion equipment, system include Breathing Suppotion equipment pipeline to be sterilized, generate ozone
Ozone generator, for by the blower and circulation pipe of ozone dissipation and flowing, the Breathing Suppotion equipment pipeline, blower with
And circulation pipe is interconnected to form circulation loop, the ozone generator and circulation loop are connected as circulation loop for ozone.
Preferably, system further includes flow sensor, and the flow sensor is connect with circulation loop, and is electrically connected at
Blower, the flow sensor control the revolving speed of blower by the uninterrupted of measurement circulation loop.
A kind of control method of Breathing Suppotion equipment disinfection, method include:
S1. uninterrupted in decontamination cycle circuit is detected；
S2. rotation speed of fan is calculated according to uninterrupted；
S3. judge whether disinfecting process is completed.
Preferably, before the S1 further include: judge whether there is fan trouble, judge whether there is ozone generator failure
And driving ozone generator and fan operation, carry out disinfection to circulation loop, if judgement there is no when fan trouble and
There is no when ozone generator failure, then ozone generator and fan operation are driven, is carried out disinfection to circulation loop.
Preferably, if judgement sends a warning there are fan trouble or there are when ozone generator failure.
Preferably, if disinfecting process does not complete, continue to sterilize；It further include ozone out of service if disinfecting process is completed
Generator prompts user to disconnect circulation loop, and runs extension set and for a period of time remove residual ozone in circulation loop.
A kind of controlling terminal of Breathing Suppotion equipment disinfection, terminal include detection unit, computing unit and third judgement
Unit, the detection unit, computing unit and third judging unit are sequentially connected, in which:
Detection unit, for detecting uninterrupted in decontamination cycle circuit；
Computing unit, for calculating rotation speed of fan according to uninterrupted；
Third judging unit, for judging whether disinfecting process is completed.
It preferably, further include the first judging unit, second judgment unit and driving unit, first judging unit,
Second judgment unit and driving unit are sequentially connected, and the driving unit is also attached to detection unit, in which:
First judging unit, for judging whether there is fan trouble；
Second judgment unit judges whether there is ozone generator failure when for fan trouble if it does not exist；
Driving unit when for ozone generator failure if it does not exist, drives ozone generator and fan operation, to following
Loop back path carries out disinfection.
It preferably, further include alarm unit, if the first judging unit or second judgment unit judge that there are blower events
When barrier or ozone generator failure, alarm unit sends a warning.
It preferably, further include clearing cell, if third judging unit judges that disinfecting process is completed, the clearing cell is used for
Ozone generator out of service prompts user to disconnect circulation loop, and running extension set for a period of time will be remaining smelly in circulation loop
Oxygen is removed.
The beneficial effects of the present invention are: the decontamination system and control method of a kind of Breathing Suppotion equipment of the invention and end
End, this system by ozone generator generation ozone, the recycling sterilizing in Breathing Suppotion equipment circulation line, do not need user into
Row is unpicked and washed, while decreasing other costs of user.While meeting sterilization function, the use for improving user is fast
Prompt convenience.
Detailed description of the invention
Technical solution in order to illustrate the embodiments of the present invention more clearly, below will be to needed in embodiment description
Attached drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the invention, general for this field
For logical technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of decontamination system schematic diagram of Breathing Suppotion equipment；
Fig. 2 is a kind of 1 flow diagram of control method embodiment of the disinfection of Breathing Suppotion equipment；
Fig. 3 is a kind of 1 flow diagram of controlling terminal embodiment of the disinfection of Breathing Suppotion equipment；
Fig. 4 is a kind of 2 flow diagram of control method embodiment of the disinfection of Breathing Suppotion equipment；
Fig. 5 is a kind of 2 flow diagram of controlling terminal embodiment of the disinfection of Breathing Suppotion equipment；
Fig. 6 is a kind of controlling terminal PID control flow diagram of the disinfection of Breathing Suppotion equipment.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
It should be appreciated that ought use in this specification and in the appended claims, term " includes " and "comprising" instruction
Described feature, entirety, step, operation, the presence of element and/or component, but one or more of the other feature, whole is not precluded
Body, step, operation, the presence or addition of element, component and/or its set.
It will be further appreciated that the term "and/or" used in description of the invention and the appended claims is
Refer to any combination and all possible combinations of one or more of associated item listed, and including these combinations.
Fig. 1, a kind of decontamination system schematic diagram of Breathing Suppotion equipment are please referred to, system includes that Breathing Suppotion to be sterilized is set
Standby pipeline 11 produces ozoniferous ozone generator 16, for breathing ozone dissipation and the blower of flowing 12 and circulation pipe
Holding equipment pipeline 11, blower 12 and circulation pipe are interconnected to form circulation loop, and ozone generator 16 and circulation loop connect
It connects, and is circulation loop for ozone；Wherein, blower 12 and ozone generator 16 are all disposed in Breathing Suppotion equipment, and are exhaled
Inhale holding equipment one.It, only need to be by circulation pipe by blower 12 and Breathing Suppotion equipment when Breathing Suppotion equipment needs to sterilize
Pipeline 11 connects, and forms circulation line, and ozone generator 16 transmits ozone into circulation line, and blower drives in circulation pipe
Ozone circulate in circulation pipe, to Breathing Suppotion equipment pipeline 11 sterilize, do not need user and unpick and wash, decrease simultaneously
The cleaning charge of user, and it is very convenient quick.
Wherein, circulation pipe includes Breathing Suppotion equipment external pipeline 13 and ozone return contacts 14；Breathing Suppotion equipment
13 one end of external pipeline connects blower 12, and the other end connects ozone return contacts 14；14 other end of ozone return contacts is connected to
The air inlet end of Breathing Suppotion equipment pipeline 11, in disinfection, Breathing Suppotion equipment pipeline 11, blower 12, Breathing Suppotion equipment
Circulation loop is collectively formed in external pipeline 13 and ozone return contacts 14.
More preferably, system further includes flow sensor 15, and flow sensor 15 is connect with circulation loop, and is electrically connected at
Blower 12, flow sensor 15 passes through the uninterrupted of measurement circulation loop, so that the revolving speed of blower 12 is controlled, so that ozone
The ozone that generator 16 generates is transmitted to each place of circulation pipe as needed.
When needing the outer surface to system to carry out disinfection, Breathing Suppotion equipment connects circulation pipe, and formation is integrally put
Enter to be put into sterile package, while carrying out disinfection to 11 inside of Breathing Suppotion equipment pipeline and outside, so more thoroughly.
Please refer to Fig. 2, a kind of 1 flow diagram of control method embodiment of the disinfection of Breathing Suppotion equipment；Method includes:
S21. uninterrupted in decontamination cycle circuit is detected；When Breathing Suppotion equipment disinfection, detect in circulation loop
Gas flow size, wherein measuring flow size are as follows:
It is to use PID closed-loop control, and then it is big to adjust air-flow to the control that the gas flow size in current pipeline carries out
It is small.
Wherein the acquisition calculation of flow uses moving average filter method, and the specific method is as follows:
The N number of sampled value continuously obtained is regarded as a queue, the length of queue is fixed as N, samples one every time newly
Data are put into tail of the queue, and throw away a data (first in first out) of original head of the queue, and N number of data in queue are carried out arithmetic
Average calculating operation obtains new filter result.
Calculation formula are as follows:
This calculation method has a good inhibiting effect to PERIODIC INTERFERENCE, and smoothness is high, for flow calculating very
Properly.
For the PID control of blower, referring to control flow Fig. 6:
In calculating control process, it is according to flow setting value Yd (t) to be achieved and real-time traffic output valve Y (t) structure
At control deviation err=Yd-Y.
Control formula are as follows:
In formula, Kp-proportionality coefficient；Ti-integration time constant；TD-derivative time constant.
The effect of each correction link of PID controller is as follows:
(1) proportional component: proportionally reflecting the deviation signal err (t) of control system, i.e. actual flow value and setting flows
Deviation between magnitude, deviation are then controlled by ratio, once generating to reduce deviation in a program.
(2) integral element: be mainly used for eliminate static difference, improve system without margin.The power of integral action depends on product
Divide time constant Ti, Ti is bigger, and integral action is weaker, on the contrary then stronger.
(3) differentiation element: reflect the variation tendency (rate of change) of deviation signal, and it can be become too big in deviation signal
Before, an effective early stage revise signal is introduced in systems, to accelerate the movement speed of system, reduces regulating time.
The step that flow PID adjustment parameter determines is as follows:
(1) Proportional coefficient K p is determined
When determining Proportional coefficient K p, removes the integral term and differential term of PID first, Ti=0, TD=0 can be enabled, be allowed into
For pure proportion adjustment.Input, which is set as system, allows to export the 60%~70% of maximum value, and Proportional coefficient K p gradually increases by 0
Greatly, until system vibrates；Again in turn, it is gradually reduced from Proportional coefficient K p at this time, until system oscillation disappears.Note
Record Proportional coefficient K p at this time sets the Proportional coefficient K p of PID as the 60%~70% of current value.
(2) integration time constant Ti is determined
After Proportional coefficient K p is determined, a biggish integration time constant Ti is set, Ti is then gradually reduced, until
System vibrates, and then again in turn, is gradually increased Ti, until system oscillation disappears.The Ti of record at this time, sets PID's
Integration time constant Ti is the 150%~180% of current value.
(3) derivative time constant TD is determined
Derivative time constant TD does not have to generally set, and is 0, and PID adjusting at this time is converted to PI adjusting.It sets if necessary
It is fixed, then identical as the method for Kp is determined, the 30% of its value when taking nonoscillatory.
According to the above method, so that flow rate calculation in circulation loop be come out.
S22. rotation speed of fan is calculated according to uninterrupted；The uninterrupted that basis is measured, to calculate outlet air
Machine revolving speed then turns down rotation speed of fan that is, when gas flow is larger, when gas flow is smaller, then rotation speed of fan is turned up,
To a kind of corresponding relationship is arranged between gas flow size and rotation speed of fan, such as: when preset gas flow is 1L/min,
The gas flow detected is 0.9L/min, then difference gas flow is 0.1L/min, then can correspond to rotation speed of fan is 20r/
20r/min is turned up in rotation speed of fan by min；When the gas flow detected is 1.2L/min, then difference gas flow is
0.2L/min, then can correspond to rotation speed of fan is 40r/min, i.e., rotation speed of fan is turned down 40r/min；Certainly, this is linear
Adjusting, may may not be stringent linear relationship in practical adjustments, it may be possible to a kind of curved line relation, this correspondence
Relationship can be carried out presetting.
S23. judge whether disinfecting process is completed；When the ozone in circulation pipe reaches a certain concentration, i.e., in circulation pipe
Play the effect of disinfection；When ozone concentration reaches preset concentration, it can carry out timing, be generally to set disinfecting time
It is set to 30min, the time that process reaches 100% is 30 minutes, that is, every 18s, and disinfection process percentage adds 1；It was sterilizing
Cheng Zhong sterilizes process real-time display, such as: when also not to 100%, it is shown as the percentage of process, and sterilizing,
Please wait a moment；If process reaches 100%, disinfection is prompted to complete；It is by from timing whether judging whether disinfecting process is completed
Start, if reach preset disinfecting time, when preset disinfecting time to when, that is, complete entire disinfecting process.
Please refer to Fig. 3, a kind of 1 flow diagram of controlling terminal embodiment of the disinfection of Breathing Suppotion equipment；Terminal includes:
Detection unit 31, computing unit 32 and third judging unit 33, detection unit 31, computing unit 32 and third judging unit
33 are sequentially connected, in which:
Detection unit 31, for detecting uninterrupted in decontamination cycle circuit；When Breathing Suppotion equipment disinfection, detection is followed
Gas flow size in loop back path, wherein measuring flow size are as follows:
It is to use PID closed-loop control, and then it is big to adjust air-flow to the control that the gas flow size in current pipeline carries out
It is small.
Wherein the acquisition calculation of flow uses moving average filter method, and the specific method is as follows:
The N number of sampled value continuously obtained is regarded as a queue, the length of queue is fixed as N, samples one every time newly
Data are put into tail of the queue, and throw away a data (first in first out) of original head of the queue, and N number of data in queue are carried out arithmetic
Average calculating operation obtains new filter result.
Calculation formula are as follows:
This calculation method has a good inhibiting effect to PERIODIC INTERFERENCE, and smoothness is high, for flow calculating very
Properly.
For the PID control of blower, referring to control flow Fig. 6:
In calculating control process, it is according to flow setting value Yd (t) to be achieved and real-time traffic output valve Y (t) structure
At control deviation err=Yd-Y.
Control formula are as follows:
In formula, Kp-proportionality coefficient；Ti-integration time constant；TD-derivative time constant.
The effect of each correction link of PID controller is as follows:
(1) proportional component: proportionally reflecting the deviation signal err (t) of control system, i.e. actual flow value and setting flows
Deviation between magnitude, deviation are then controlled by ratio, once generating to reduce deviation in a program.
(2) integral element: be mainly used for eliminate static difference, improve system without margin.The power of integral action depends on product
Divide time constant Ti, Ti is bigger, and integral action is weaker, on the contrary then stronger.
(3) differentiation element: reflect the variation tendency (rate of change) of deviation signal, and it can be become too big in deviation signal
Before, an effective early stage revise signal is introduced in systems, to accelerate the movement speed of system, reduces regulating time.
The step that flow PID adjustment parameter determines is as follows:
(1) Proportional coefficient K p is determined
When determining Proportional coefficient K p, removes the integral term and differential term of PID first, Ti=0, TD=0 can be enabled, be allowed into
For pure proportion adjustment.Input, which is set as system, allows to export the 60%~70% of maximum value, and Proportional coefficient K p gradually increases by 0
Greatly, until system vibrates；Again in turn, it is gradually reduced from Proportional coefficient K p at this time, until system oscillation disappears.Note
Record Proportional coefficient K p at this time sets the Proportional coefficient K p of PID as the 60%~70% of current value.
(2) integration time constant Ti is determined
After Proportional coefficient K p is determined, a biggish integration time constant Ti is set, Ti is then gradually reduced, until
System vibrates, and then again in turn, is gradually increased Ti, until system oscillation disappears.The Ti of record at this time, sets PID's
Integration time constant Ti is the 150%~180% of current value.
(3) derivative time constant TD is determined
Derivative time constant TD does not have to generally set, and is 0, and PID adjusting at this time is converted to PI adjusting.It sets if necessary
It is fixed, then identical as the method for Kp is determined, the 30% of its value when taking nonoscillatory.
According to the above method, so that flow rate calculation in circulation loop be come out.
Computing unit 32, for calculating rotation speed of fan according to uninterrupted；The uninterrupted that basis is measured, from
And calculate rotation speed of fan, i.e., when gas flow is larger, then rotation speed of fan is turned down, when gas flow is smaller, then by wind
Machine revolving speed is turned up, to a kind of corresponding relationship is arranged between gas flow size and rotation speed of fan, such as: when preset gas flow
When for 1L/min, the gas flow detected is 0.9L/min, then difference gas flow is 0.1L/min, then can correspond to blower
Revolving speed is 20r/min, i.e., 20r/min is turned up in rotation speed of fan；When the gas flow detected is 1.2L/min, then difference gas
Flow is 0.2L/min, then can correspond to rotation speed of fan is 40r/min, i.e., rotation speed of fan is turned down 40r/min；Certainly, this
It is linear adjusting, may may not be stringent linear relationship in practical adjustments, it may be possible to a kind of curved line relation, this
Kind corresponding relationship can be carried out presetting.
Third judging unit 33, for judging whether disinfecting process is completed；When the ozone in circulation pipe reaches a certain concentration
When, i.e., to the effect for playing disinfection in circulation pipe；When ozone concentration reaches preset concentration, it can carry out timing, generally
Ground is to set disinfecting time to 30min, and the time that process reaches 100% is 30 minutes, that is, every 18s, sterilizes process hundred
Divide than adding 1；In disinfecting process, process real-time display is sterilized, such as: when also not to 100%, it is shown as the percentage of process
Than, and sterilizing, please wait a moment；If process reaches 100%, disinfection is prompted to complete；Judge whether disinfecting process is complete
At whether, be by since timing, if reach preset disinfecting time, when preset disinfecting time to when, that is, complete
Entire disinfecting process.
Please refer to Fig. 4, a kind of 2 flow diagram of control method embodiment of the disinfection of Breathing Suppotion equipment；Method includes:
S41. fan trouble is judged whether there is；Before disinfection starting, check blower whether judge blower first
There are failures, among these include line fault, signal line failure and blower internal fault itself.
S42. ozone generator failure is judged whether there is；When failure is not present in blower, then judge that ozone generator is
No there are failures, among these also include line fault, signal line failure and ozone generator internal fault itself.
S43. it sends a warning, returns to initial interface；When blower or ozone generator are there are when failure, then report is issued
Alert information prompts user to eliminate failure to user, and returns to initial interface.
S44. ozone generator and fan operation are driven, is carried out disinfection；When blower and ozone generator are all not present
When failure, then ozone generator and fan operation are driven, carried out disinfection to the circulation line of Breathing Suppotion equipment.
S45. uninterrupted in decontamination cycle circuit is detected；When Breathing Suppotion equipment disinfection, detect in circulation loop
Gas flow size, wherein measuring flow size are as follows:
It is to use PID closed-loop control, and then it is big to adjust air-flow to the control that the gas flow size in current pipeline carries out
It is small.
Wherein the acquisition calculation of flow uses moving average filter method, and the specific method is as follows:
The N number of sampled value continuously obtained is regarded as a queue, the length of queue is fixed as N, samples one every time newly
Data are put into tail of the queue, and throw away a data (first in first out) of original head of the queue, and N number of data in queue are carried out arithmetic
Average calculating operation obtains new filter result.
Calculation formula are as follows:
This calculation method has a good inhibiting effect to PERIODIC INTERFERENCE, and smoothness is high, for flow calculating very
Properly.
For the PID control of blower, referring to control flow Fig. 6；
In calculating control process, it is according to flow setting value Yd (t) to be achieved and real-time traffic output valve Y (t) structure
At control deviation err=Yd-Y.
Control formula are as follows:
In formula, Kp-proportionality coefficient；Ti-integration time constant；TD-derivative time constant.
The effect of each correction link of PID controller is as follows:
(1) proportional component: proportionally reflecting the deviation signal err (t) of control system, i.e. actual flow value and setting flows
Deviation between magnitude, deviation are then controlled by ratio, once generating to reduce deviation in a program.
(2) integral element: be mainly used for eliminate static difference, improve system without margin.The power of integral action depends on product
Divide time constant Ti, Ti is bigger, and integral action is weaker, on the contrary then stronger.
(3) differentiation element: reflect the variation tendency (rate of change) of deviation signal, and it can be become too big in deviation signal
Before, an effective early stage revise signal is introduced in systems, to accelerate the movement speed of system, reduces regulating time.
The step that flow PID adjustment parameter determines is as follows:
(1) Proportional coefficient K p is determined
When determining Proportional coefficient K p, removes the integral term and differential term of PID first, Ti=0, TD=0 can be enabled, be allowed into
For pure proportion adjustment.Input, which is set as system, allows to export the 60%~70% of maximum value, and Proportional coefficient K p gradually increases by 0
Greatly, until system vibrates；Again in turn, it is gradually reduced from Proportional coefficient K p at this time, until system oscillation disappears.Note
Record Proportional coefficient K p at this time sets the Proportional coefficient K p of PID as the 60%~70% of current value.
(2) integration time constant Ti is determined
After Proportional coefficient K p is determined, a biggish integration time constant Ti is set, Ti is then gradually reduced, until
System vibrates, and then again in turn, is gradually increased Ti, until system oscillation disappears.The Ti of record at this time, sets PID's
Integration time constant Ti is the 150%~180% of current value.
(3) derivative time constant TD is determined
Derivative time constant TD does not have to generally set, and is 0, and PID adjusting at this time is converted to PI adjusting.It sets if necessary
It is fixed, then identical as the method for Kp is determined, the 30% of its value when taking nonoscillatory.
According to the above method, so that flow rate calculation in circulation loop be come out.
S46. rotation speed of fan is calculated according to uninterrupted；The uninterrupted that basis is measured, to calculate outlet air
Machine revolving speed then turns down rotation speed of fan that is, when gas flow is larger, when gas flow is smaller, then rotation speed of fan is turned up,
To a kind of corresponding relationship is arranged between gas flow size and rotation speed of fan, such as: when preset gas flow is 1L/min,
The gas flow detected is 0.9L/min, then difference gas flow is 0.1L/min, then can correspond to rotation speed of fan is 20r/
20r/min is turned up in rotation speed of fan by min；When the gas flow detected is 1.2L/min, then difference gas flow is
0.2L/min, then can correspond to rotation speed of fan is 40r/min, i.e., rotation speed of fan is turned down 40r/min；Certainly, this is linear
Adjusting, may may not be stringent linear relationship in practical adjustments, it may be possible to a kind of curved line relation, this correspondence
Relationship can be carried out presetting.
S47. judge whether disinfecting process is completed；When the ozone in circulation pipe reaches a certain concentration, i.e., in circulation pipe
Play the effect of disinfection；When ozone concentration reaches preset concentration, it can carry out timing, be generally to set disinfecting time
It is set to 30min, the time that process reaches 100% is 30 minutes, that is, every 18s, and disinfection process percentage adds 1；It was sterilizing
Cheng Zhong sterilizes process real-time display, such as: when also not to 100%, it is shown as the percentage of process, and sterilizing,
Please wait a moment；If process reaches 100%, disinfection is prompted to complete；It is by from timing whether judging whether disinfecting process is completed
Start, if reach preset disinfecting time, when preset disinfecting time is also not timed out, then continue to sterilize.
S48. ozone generator out of service, after prompting user to disconnect circulation loop, fan operation carries out residual for a period of time
The cleaning of after-odour oxygen；When disinfecting process is completed, then ozone generator out of service, because being recycled after the completion of disinfecting process
There are also ozone in pipe, cannot directly be used by user, so prompt user disconnects circulation line, after circulation line disconnection, after
For a period of time, ozone concentration is not generally operation 5min in extra high situation to reforwarding row blower in pipe, will be in circulation line
Ozone residue discharge.
Fig. 5, a kind of 2 flow diagram of controlling terminal embodiment of the disinfection of Breathing Suppotion equipment are please referred to, terminal includes:
First judging unit 51, second judgment unit 52, alarm unit 53, driving unit 54, detection unit 55, computing unit 56,
Three judging units 57 and clearing cell 58, the first judging unit 51, second judgment unit 52, driving unit 54, detection unit
55, computing unit 56, third judging unit 57 and clearing cell 58 are sequentially connected, and alarm unit 53 is connected to first simultaneously
Judging unit 51, second judgment unit 52, in which:
First judging unit 51, for judging whether there is fan trouble；Before disinfection starting, blower is examined first
It looks into, judges blower with the presence or absence of failure, among these include the internal event of line fault, signal line failure and blower itself
Barrier.
Second judgment unit 52, for judging whether there is ozone generator failure；When failure is not present in blower, then sentence
Disconnected ozone generator whether there is failure, among these also include line fault, signal line failure and ozone generator sheet
Body internal fault.
Alarm unit 53 returns to initial interface for sending a warning；When there are failures for blower or ozone generator
When, then alert prompts user to eliminate failure to user, and returns to initial interface.
Driving unit 54 carries out disinfection for driving ozone generator and fan operation；When blower and ozone are sent out
When failure is all not present in raw device, then ozone generator and fan operation are driven, the circulation line of Breathing Suppotion equipment is carried out
Disinfection.
Detection unit 55, for detecting uninterrupted in decontamination cycle circuit；When Breathing Suppotion equipment disinfection, detection is followed
Gas flow size in loop back path, wherein measuring flow size are as follows:
It is to use PID closed-loop control, and then it is big to adjust air-flow to the control that the gas flow size in current pipeline carries out
It is small.
Wherein the acquisition calculation of flow uses moving average filter method, and the specific method is as follows:
The N number of sampled value continuously obtained is regarded as a queue, the length of queue is fixed as N, samples one every time newly
Data are put into tail of the queue, and throw away a data (first in first out) of original head of the queue, and N number of data in queue are carried out arithmetic
Average calculating operation obtains new filter result.
Calculation formula are as follows:
This calculation method has a good inhibiting effect to PERIODIC INTERFERENCE, and smoothness is high, for flow calculating very
Properly.
For the PID control of blower, referring to control flow Fig. 6；
In calculating control process, it is according to flow setting value Yd (t) to be achieved and real-time traffic output valve Y (t) structure
At control deviation err=Yd-Y.
Control formula are as follows:
In formula, Kp-proportionality coefficient；Ti-integration time constant；TD-derivative time constant.
The effect of each correction link of PID controller is as follows:
(1) proportional component: proportionally reflecting the deviation signal err (t) of control system, i.e. actual flow value and setting flows
Deviation between magnitude, deviation are then controlled by ratio, once generating to reduce deviation in a program.
(2) integral element: be mainly used for eliminate static difference, improve system without margin.The power of integral action depends on product
Divide time constant Ti, Ti is bigger, and integral action is weaker, on the contrary then stronger.
(3) differentiation element: reflect the variation tendency (rate of change) of deviation signal, and it can be become too big in deviation signal
Before, an effective early stage revise signal is introduced in systems, to accelerate the movement speed of system, reduces regulating time.
The step that flow PID adjustment parameter determines is as follows:
(1) Proportional coefficient K p is determined
When determining Proportional coefficient K p, removes the integral term and differential term of PID first, Ti=0, TD=0 can be enabled, be allowed into
For pure proportion adjustment.Input, which is set as system, allows to export the 60%~70% of maximum value, and Proportional coefficient K p gradually increases by 0
Greatly, until system vibrates；Again in turn, it is gradually reduced from Proportional coefficient K p at this time, until system oscillation disappears.Record
Proportional coefficient K p at this time sets the Proportional coefficient K p of PID as the 60%~70% of current value.
(2) integration time constant Ti is determined
After Proportional coefficient K p is determined, a biggish integration time constant Ti is set, Ti is then gradually reduced, until
System vibrates, and then again in turn, is gradually increased Ti, until system oscillation disappears.The Ti of record at this time, sets PID's
Integration time constant Ti is the 150%~180% of current value.
(3) derivative time constant TD is determined
Derivative time constant TD does not have to generally set, and is 0, and PID adjusting at this time is converted to PI adjusting.It sets if necessary
It is fixed, then identical as the method for Kp is determined, the 30% of its value when taking nonoscillatory.
According to the above method, so that flow rate calculation in circulation loop be come out.
Computing unit 56, for calculating rotation speed of fan according to uninterrupted；The uninterrupted that basis is measured, from
And calculate rotation speed of fan, i.e., when gas flow is larger, then rotation speed of fan is turned down, when gas flow is smaller, then by wind
Machine revolving speed is turned up, to a kind of corresponding relationship is arranged between gas flow size and rotation speed of fan, such as: when preset gas flow
When for 1L/min, the gas flow detected is 0.9L/min, then difference gas flow is 0.1L/min, then can correspond to blower
Revolving speed is 20r/min, i.e., 20r/min is turned up in rotation speed of fan；When the gas flow detected is 1.2L/min, then difference gas
Flow is 0.2L/min, then can correspond to rotation speed of fan is 40r/min, i.e., rotation speed of fan is turned down 40r/min；Certainly, this
It is linear adjusting, may may not be stringent linear relationship in practical adjustments, it may be possible to a kind of curved line relation, this
Kind corresponding relationship can be carried out presetting.
Third judging unit 57, for judging whether disinfecting process is completed；When the ozone in circulation pipe reaches a certain concentration
When, i.e., to the effect for playing disinfection in circulation pipe；When ozone concentration reaches preset concentration, it can carry out timing, generally
Ground is to set disinfecting time to 30min, and the time that process reaches 100% is 30 minutes, that is, every 18s, sterilizes process hundred
Divide than adding 1；In disinfecting process, process real-time display is sterilized, such as: when also not to 100%, it is shown as the percentage of process
Than, and sterilizing, please wait a moment；If process reaches 100%, disinfection is prompted to complete；Judge whether disinfecting process is complete
At whether, be by since timing, if reach preset disinfecting time, when preset disinfecting time is also not timed out, then after
It is continuous to carry out disinfection.
Clearing cell 58 is used for ozone generator out of service, after prompting user to disconnect circulation loop, one section of fan operation
Time carries out residual ozone cleaning；When disinfecting process is completed, then ozone generator out of service, because being completed in disinfecting process
Afterwards, there are also ozone in circulation pipe, cannot directly be used by user, so prompt user disconnects circulation line, in circulation line
After disconnection, blower is continued to run for a period of time, ozone concentration is not generally operation 5min in extra high situation in pipe, will
Ozone residue discharge in circulation line.
The embodiment of the present invention can be sequentially adjusted, merged and deleted according to actual needs.
This programme is described in detail in embodiment, and specific case used herein is to structural principle of the invention
And embodiment is expounded, above embodiments are merely used to help understand method and its core concept of the invention；Meanwhile
For those of ordinary skill in the art, according to the thought of the present invention, has change in specific embodiments and applications
Become place, in conclusion the contents of this specification are not to be construed as limiting the invention.
Claims (10)
1. a kind of decontamination system of Breathing Suppotion equipment, which is characterized in that system include Breathing Suppotion equipment pipeline to be sterilized,
Produce ozoniferous ozone generator, for by the blower and circulation pipe of ozone dissipation and flowing, the Breathing Suppotion equipment pipe
Road, blower and circulation pipe are interconnected to form circulation loop, and the ozone generator and circulation loop are connected as circulation loop
For ozone.
2. decontamination system according to claim 1, which is characterized in that system further includes flow sensor, and the flow passes
Sensor is connect with circulation loop, and is electrically connected at blower, the uninterrupted that the flow sensor passes through measurement circulation loop
To control the revolving speed of blower.
3. a kind of control method of Breathing Suppotion equipment disinfection, which is characterized in that method includes:
S1. uninterrupted in decontamination cycle circuit is detected；
S2. rotation speed of fan is calculated according to uninterrupted；
S3. judge whether disinfecting process is completed.
4. control method according to claim 3, which is characterized in that before the S1 further include: judge whether there is blower
Failure judges whether there is ozone generator failure and driving ozone generator and fan operation, carries out to circulation loop
Disinfection, if judgement drives ozone generator and wind there is no when fan trouble and when ozone generator failure is not present
Machine operation, carries out disinfection to circulation loop.
5. control method according to claim 4, which is characterized in that if judgement is there are fan trouble or there are ozone generations
When device failure, then send a warning.
6. control method according to claim 3, which is characterized in that if disinfecting process does not complete, continue to sterilize；If disappearing
Malicious process is completed, and further includes ozone generator out of service, and user is prompted to disconnect circulation loop, and is run extension set and for a period of time will
Residual ozone is removed in circulation loop.
7. a kind of controlling terminal of Breathing Suppotion equipment disinfection, which is characterized in that terminal include detection unit, computing unit and
Third judging unit, the detection unit, computing unit and third judging unit are sequentially connected, in which:
Detection unit, for detecting uninterrupted in decontamination cycle circuit；
Computing unit, for calculating rotation speed of fan according to uninterrupted；
Third judging unit, for judging whether disinfecting process is completed.
8. controlling terminal according to claim 7, which is characterized in that further include the first judging unit, second judgment unit
And driving unit, first judging unit, second judgment unit and driving unit are sequentially connected, the driving unit is also
It is connected to detection unit, in which:
First judging unit, for judging whether there is fan trouble；
Second judgment unit judges whether there is ozone generator failure when for fan trouble if it does not exist；
Driving unit when for ozone generator failure if it does not exist, drives ozone generator and fan operation, to being recycled back to
Road carries out disinfection.
9. controlling terminal according to claim 8, which is characterized in that further include alarm unit, if the first judging unit or
Person's second judgment unit judges that alarm unit sends a warning there are when fan trouble or ozone generator failure.
10. controlling terminal according to claim 7, which is characterized in that further include clearing cell, if third judging unit is sentenced
Disconnected disinfecting process is completed, and the clearing cell is used for ozone generator out of service, prompts user to disconnect circulation loop, and run
Extension set for a period of time removes residual ozone in circulation loop.
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| CN201811501705.6A CN109620986A (en) | 2018-12-10 | 2018-12-10 | The decontamination system and control method and terminal of a kind of Breathing Suppotion equipment |
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| CN201811501705.6A CN109620986A (en) | 2018-12-10 | 2018-12-10 | The decontamination system and control method and terminal of a kind of Breathing Suppotion equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111110891A (en) * | 2019-12-31 | 2020-05-08 | 湖南明康中锦医疗科技发展有限公司 | Respiratory support device disinfection system |
| CN111361385A (en) * | 2020-03-06 | 2020-07-03 | 国唐汽车有限公司 | Autonomous disinfection epidemic prevention method for new energy bus |
-
2018
- 2018-12-10 CN CN201811501705.6A patent/CN109620986A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111110891A (en) * | 2019-12-31 | 2020-05-08 | 湖南明康中锦医疗科技发展有限公司 | Respiratory support device disinfection system |
| CN111361385A (en) * | 2020-03-06 | 2020-07-03 | 国唐汽车有限公司 | Autonomous disinfection epidemic prevention method for new energy bus |
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