CN101847016B - Method for automatically regulating balance between CO2 and O2 in sealed system - Google Patents
Method for automatically regulating balance between CO2 and O2 in sealed system Download PDFInfo
- Publication number
- CN101847016B CN101847016B CN2010101720590A CN201010172059A CN101847016B CN 101847016 B CN101847016 B CN 101847016B CN 2010101720590 A CN2010101720590 A CN 2010101720590A CN 201010172059 A CN201010172059 A CN 201010172059A CN 101847016 B CN101847016 B CN 101847016B
- Authority
- CN
- China
- Prior art keywords
- closed system
- concentration
- control
- balance
- controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Cultivation Of Seaweed (AREA)
Abstract
The invention relates to a method for automatically regulating the balance between CO2 and O2 in a sealed system, which mainly aims at the problem of the balance between the CO2 and the O2 in a bioregenerative life support system (BLSS) of a long-time and remote manned space base (such as a moon permanent base, a Mars base and the like). In the invention, a simulation model of a CO2 controller of the sealed system in a MatLab/Simulink is established, the simulation model of the controller serving as the actual controller is connected with hardware by taking LabVIEW software as a platform; and the current of an LED light source is adjusted by monitoring the concentration of the CO2 in the sealed system so as to change the light intensity of the light source, influence the photosynthesis speed of a microalgae, and also influence the concentration of the CO2 and the O2 in the sealed system; and the aim of automatically regulating the balance between the CO2 and the O2 in the sealed system is fulfilled.
Description
Technical field
The present invention relates to CO in a kind of auto-control closed system
2And O
2The method of balance is primarily aimed at long-time, remote manned base, space (like moon permanent base, Mars base etc.) bioregenerative life support system (Bioregenerative Life Support System, BLSS) interior CO
2And O
2Equilibrium problem.
Background technology
Bioregenerative life support system (Bioregenerative Life Support System; BLSS) be the gordian technique of manned space flight; It is to utilize biologies such as higher plant and microorganism to produce food, processing of waste; Simultaneously regeneration air and water provide independent, complete, the complicated system of material guarantee for spacefarer's vital movement.Wherein, keeping gas in the system (mainly is CO
2And O
2) balance be the important assurance of BLSS security and reliability.
Higher plant is the core component of BLSS, for the occupant provides food, and the regeneration of water and O
2Regeneration.But research is illustrated among the BLSS and possibly occurs higher plant situation in poor harvest suddenly, and this will cause a series of problem, comprise the gas equilibrium of destruction system.In this case; The recipe that can select to change the occupant is regulated, and its shortcoming is to need the long reaction time (about 10 days), also can recover through the kind that changes higher plant; This needs long time (30～60 days) equally; Be fatal to the so artificial small-sized ecologic environment of BLSS so long release time, therefore, develop a kind of can quick adjustment BLSS in CO
2And O
2The method of balance is imperative.
Compare with higher plant, little algae has characteristics such as volume is little, fast growth, the efficiency of light energy utilization is high, oxygen discharging speed is fast as the simple relatively phototrophy organism of a class formation, can fast Absorption CO
2, discharge O
2, therefore can be used for regulating and control BLSS CO
2And O
2Balance.And bioreactor is to influence micro algae growth and O as the culture apparatus of little algae
2The key equipment of regeneration; Through it is effectively regulated, can control the growth of little algae, produce oxygen fast; Can be as the emergence technology unit of BLSS; When the plant unit fluctuation of service, the service condition through the control bioreactor makes the photosynthesis of little algae accelerate or weaken, to keep stable atmospheric environment among the BLSS.
Therefore, develop a kind of method that can the auto-control bioreactor, so that keep CO in the BLSS
2And O
2Balance, BLSS security and reliability are had great importance.
Summary of the invention
The purpose of this invention is to provide a kind of can the auto-control closed system in CO
2And O
2The method of balance.
For achieving the above object, the technical scheme of taking is: regulate and control the photosynthetic rate of little algae through the light intensity that changes the bioreactor led light source, and then regulate and control CO in the closed system
2And O
2Concentration.For realizing automatic control, in MatLab/Simulink, set up closed system CO
2The controller simulation model is that platform is connected with hardware with LabVIEW software, as the working control device, through preestablishing CO in the closed system
2CO in the closed system of concentration value and monitoring
2The difference of concentration value is calculated light intensity value, regulates bioreactor led light source light intensity with the current impulse regulative mode, through regulating and control little algae photosynthetic rate, and then regulation and control closed system CO
2And O
2Concentration, thus reach CO in the auto-control closed system
2And O
2The purpose of balance.
Description of drawings
Fig. 1 is CO in the auto-control closed system of the present invention
2And O
2The balance method process flow diagram;
The closed system CO that Fig. 2 sets up in MatLab/Simulink for the present invention
2The consistency controller realistic model.
Embodiment
Be described in further detail below in conjunction with the accompanying drawing specific embodiments of the invention.
Utilize CO
2CO in the concentration sensor monitoring closed system
2Concentration, signal get into the LabView platform through the numerical value collection plate; Import in the controller simulation algorithm (Fig. 2) of MatLab/Simulink through NI simulation interfacekit (SIT) interface again; At first signal is proofreaied and correct, LPF then is with CO in the predefined closed system
2Subtract each other concentration reference value and it; Import ratio-integration (PI) middle controller into and calculate light intensity value, get into the LabView platform, through signal amplifier through SIT; Change bioreactor led light source light intensity with electric current pulse-width regulated mode; With the light intensity value of light intensity regulating to calculating, thereby the photosynthetic rate of little algae in the regulation and control bioreactor is regulated and control CO in the closed system
2And O
2Concentration, CO in closed system
2Concentration and predefined CO
2Till the concentration reference value unanimity, thereby reach CO in the auto-control closed system
2And O
2The purpose of balance.
Claims (4)
1. CO in the auto-control closed system
2And O
2The method of balance is characterized in that: utilize CO
2CO in the concentration sensor monitoring closed system
2Concentration; Signal is through the numerical value collection plate; Get into the LabView platform, import in the controller simulation algorithm of MatLab/Simulink through NI simulation interface kit (SIT), this algorithm comprises to be proofreaied and correct signal; LPF, and with CO in this signal and the predefined closed system
2Concentration reference value is subtracted each other; Import ratio-integration (PI) controller into and calculate light intensity value, should value import the LabView platform into then, through amplifier through SIT; Change the electric current of led light source through the pulse-width regulated mode; Can light source intensity be adjusted to the light intensity value of calculating, thus the photosynthetic rate of little algae in the regulation and control bioreactor, and then CO in the regulation and control closed system
2And O
2Concentration, CO in closed system
2Concentration and predefined CO
2Till the concentration reference value unanimity.
2. method according to claim 1, it is characterized in that: the light intensity of bioreactor led light source is regulated through electric current pulse-width regulated mode, thereby regulates and control the photosynthetic rate of little algae.
3. method according to claim 1 is characterized in that: in MatLab/Simulink, set up closed system CO
2The controller simulation model is controlled the calculating of light intensity magnitude.
4. method according to claim 1 is characterized in that: in MatLab/Simulink, set up closed system CO
2The controller simulation model is that platform is connected with hardware with LabVIEW software, as CO in the regulation and control closed system
2And O
2The working control device of balance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101720590A CN101847016B (en) | 2010-05-07 | 2010-05-07 | Method for automatically regulating balance between CO2 and O2 in sealed system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101720590A CN101847016B (en) | 2010-05-07 | 2010-05-07 | Method for automatically regulating balance between CO2 and O2 in sealed system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101847016A CN101847016A (en) | 2010-09-29 |
| CN101847016B true CN101847016B (en) | 2012-01-11 |
Family
ID=42771652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101720590A Expired - Fee Related CN101847016B (en) | 2010-05-07 | 2010-05-07 | Method for automatically regulating balance between CO2 and O2 in sealed system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101847016B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758027B (en) * | 2011-04-28 | 2013-12-25 | 杭州汉徽光电科技有限公司 | Generation environment control method and system for microalgae cultivation |
| CN102736540A (en) * | 2012-06-12 | 2012-10-17 | 北京航空航天大学 | Artificial neural network model reference servo controller for regulating microalgae growth rate |
| CN103977493B (en) * | 2014-05-29 | 2016-08-17 | 北京航空航天大学 | Can be used for the experiment porch of invasive ventilation gas leakage detection |
| CN105159073B (en) * | 2015-08-18 | 2017-12-12 | 北京航空航天大学 | A kind of method by adjusting carbon dioxide and oxygen balance in the closed artificial ecological system of part Plant Light cycle regulating |
| CN107368111B (en) * | 2016-08-01 | 2020-04-21 | 北京航空航天大学 | Method for maintaining stable concentrations of oxygen and carbon dioxide in plant factory based on plant photoperiod staggered setting |
| CN107153742A (en) * | 2017-05-24 | 2017-09-12 | 北京航空航天大学 | Regulate and control the method and technique of oxygen and gas concentration lwevel balance in airtight space cabin using Artificially transfering bezoar |
| CN108256181B (en) * | 2017-12-31 | 2021-03-26 | 西北农林科技大学 | Construction and application of optimal regulation and control model of facility carbon dioxide target value with integration of efficiency constraint |
| CN109458563A (en) * | 2018-10-23 | 2019-03-12 | 青岛理工大学 | A kind of open local water supply network dynamic self-adapting emulation modelling method |
| CN110647196A (en) * | 2019-10-14 | 2020-01-03 | 全元通通讯股份有限公司 | Active indoor planting dynamic carbon dioxide concentration adjusting system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201203598Y (en) * | 2007-06-12 | 2009-03-04 | 北京航空航天大学 | Synthesis experimental device for simulating relation between biology units of biology regenesis life-support system |
| CN101781663A (en) * | 2009-01-21 | 2010-07-21 | 新奥科技发展有限公司 | Method for preparing and collecting oxygen-enriched air |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01226897A (en) * | 1988-03-08 | 1989-09-11 | Kazuo Kojima | Method for extracting fucosterol |
-
2010
- 2010-05-07 CN CN2010101720590A patent/CN101847016B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201203598Y (en) * | 2007-06-12 | 2009-03-04 | 北京航空航天大学 | Synthesis experimental device for simulating relation between biology units of biology regenesis life-support system |
| CN101781663A (en) * | 2009-01-21 | 2010-07-21 | 新奥科技发展有限公司 | Method for preparing and collecting oxygen-enriched air |
Non-Patent Citations (3)
| Title |
|---|
| 刘红等.生物再生生命保障系统设计的基本问题.《航天医学与医学工程》.2008,第21卷(第4期),372-376. * |
| 胡大伟等.BLSS中光生物反应器控制器数值仿真和虚拟现实研究.《中国空间科学学会第七次学术年会》.2009,250-251. * |
| 胡大伟等.BLSS中光藻反应器的模型与仿真实验研究.《航天医学与医学工程》.2009,第22卷(第1期),1-8. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101847016A (en) | 2010-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101847016B (en) | Method for automatically regulating balance between CO2 and O2 in sealed system | |
| He et al. | Experimental analysis and model-based optimization of microalgae growth in photo-bioreactors using flue gas | |
| Ketheesan et al. | Modeling microalgal growth in an airlift-driven raceway reactor | |
| WO2012087965A3 (en) | Cell culture platform for single cell sorting and enhanced reprogramming of ipscs | |
| Kuo et al. | Ability of an alkali-tolerant mutant strain of the microalga Chlorella sp. AT1 to capture carbon dioxide for increasing carbon dioxide utilization efficiency | |
| WO2011161086A3 (en) | Device and method for industrial cultivation of cells | |
| NZ627091A (en) | Host cells with artificial endosymbionts | |
| CN1978866A (en) | Biological control method and apparatus for reducing coal-mine gas content | |
| Chellamboli et al. | Application of response surface methodology for optimization of growth and lipids in Scenedesmus abundans using batch culture system | |
| WO2013112939A3 (en) | Methods for succinate production | |
| Kim et al. | A novel approach to the production of hyaluronic acid by Streptococcus zooepidemicus | |
| CN101859118B (en) | Robust controller for adjusting equilibrium of gases in small artificial ecosystem | |
| WO2014094734A3 (en) | Energy conversion system | |
| Proksch | Growing sustainability-integrating algae cultivation into the built environment | |
| CA2898315C (en) | Process for managing photobioreactor exhaust | |
| CN105159073B (en) | A kind of method by adjusting carbon dioxide and oxygen balance in the closed artificial ecological system of part Plant Light cycle regulating | |
| ATE474908T1 (en) | DEVICE FOR CULTIVATION OF CELLS OR MICROORGANISMS | |
| CN201065407Y (en) | In vitro cell open type pressure program control culturing device | |
| TW201129698A (en) | New cell culture method | |
| CN201842846U (en) | Control device of cell exposure gas with controllable concentration | |
| WO2007082002A3 (en) | Waste management facilities for the production of hydrogen gas and reduction of greenhouse gases | |
| JP2007089580A (en) | Method and apparatus for culturing photosynthetic microorganism | |
| CN102174378A (en) | Biogas fermentation device | |
| MY179877A (en) | Method for producing 2,3-butanediol | |
| CN204229728U (en) | A kind of chlorella photosynthesis teaching and experimental demonstration device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20120507 |