CN104456857A - Indoor harmful gas monitoring system - Google Patents

Indoor harmful gas monitoring system Download PDF

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Publication number
CN104456857A
CN104456857A CN201410849583.5A CN201410849583A CN104456857A CN 104456857 A CN104456857 A CN 104456857A CN 201410849583 A CN201410849583 A CN 201410849583A CN 104456857 A CN104456857 A CN 104456857A
Authority
CN
China
Prior art keywords
control circuit
indoor
dsp microprocessor
harmful gas
gas monitoring
Prior art date
Application number
CN201410849583.5A
Other languages
Chinese (zh)
Inventor
王一伊
Original Assignee
桂林科技企业发展中心
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 桂林科技企业发展中心 filed Critical 桂林科技企业发展中心
Priority to CN201410849583.5A priority Critical patent/CN104456857A/en
Publication of CN104456857A publication Critical patent/CN104456857A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/50Air quality properties
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/50Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52Indication arrangements, e.g. displays
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/50Air quality properties
    • F24F2110/60Odour
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/50Air quality properties
    • F24F2110/64Airborne particle content

Abstract

The invention discloses an indoor harmful gas monitoring system which comprises an MQ2 gas sensitive sensor, a dust sensor, an A/D conversion circuit, a DSP microprocessor and an air inlet end control circuit. The MQ2 gas sensitive sensor and the dust sensor are connected with the signal input end of the DSP microprocessor through the A/D conversion circuit. The signal output end of the DSP microprocessor is connected with the air inlet end control circuit. The air inlet end control circuit comprises an indoor air valve control circuit and an outdoor air valve control circuit. The indoor harmful gas monitoring system is simple, and has the functions of monitoring the concentration of indoor gases in real time, giving out concentration over-standard alarms and automatically starting an air inlet valve.

Description

Indoor harmful gas monitoring system

Technical field

The present invention relates to a kind of monitoring harmful gases system, be specifically related to indoor harmful gas monitoring system.

Background technology

Along with the development of economic society, it is plentiful that people are no longer satisfied with on material, more focuses on the pursuit to quality of life.In order to enjoy family's warmth and visual sensation, often use a large amount of ornament materials during finishing, and these materials release a large amount of dusty gas, as formaldehyde, ammonia, radon etc., serious threat health safety; Newly renovated house, a large amount of dust also can be filled the air in indoor, causes adverse influence to the breathing of human body.Meanwhile, coal gas or natural gas also enter huge numbers of families, and potential danger also enters huge numbers of families.The thing that the anthracemia that gas leak or gas leakage cause has when being; especially cold winter; people habitually shut the cold air that door and window resists outside; once there is gas leak or gas leakage; the healthy and safe of human body will be injured; the probably life of crisis human body, causes huge life and property loss.So, develop a kind of easy monitoring system, the residing indoor gas concentration of people can be informed at any time, concentration over-standard reports to the police and start the indoor harmful gas monitoring system of inlet flap voluntarily, for people have a health, the living environment of safety provides safeguard.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of simple and easy, has the gas concentration of Real-Time Monitoring indoor, concentration over-standard reports to the police and start the indoor harmful gas monitoring system of inlet flap voluntarily.

Indoor harmful gas monitoring system, comprise MQ2 gas sensor, dust sensor, A/D change-over circuit, DSP microprocessor, inlet end control circuit, described MQ2 gas sensor is connected DSP microprocessor signals input with dust sensor through A/D change-over circuit, DSP microprocessor signals output connects inlet end control circuit, and described inlet end control circuit comprises indoor air-valve control circuit and outdoor air-valve control circuit.

Further, described DSP microprocessor signals input is also connected with keyboard, the setting value of convenient input gas concentration and some other numerical value.

Further, described DSP microprocessor signals output is also connected with display and warning device, and realizing people can other situation such as real time inspection indoor harmful gas content intuitively, is inform indoor personnel by warning device when harmful gas concentration exceeds standard.

Further, described DSP microprocessor also connects host computer by communication interface, makes control more diversified.

Beneficial effect of the present invention is:

The present invention can according to the harmful gas concentration in MQ2 gas sensor and the real-time nernst cell of dust sensor and dust granules concentration, shown by display after DSP microprocessor processes, and make comparisons with harmful gas concentration setting value and dust granules concentration set point, the opening and closing of air-valve and outdoor air-valve in control room voluntarily, ensure that indoor oxygen content maintains desirable level, also inform indoor personnel by warning device when the harmful substances such as indoor harmful gas exceed standard.

Accompanying drawing explanation

Fig. 1 is the structured flowchart of indoor harmful gas monitoring system of the present invention.

Detailed description of the invention

Accompanying drawing discloses concrete structure of the present invention without limitation, and below in conjunction with accompanying drawing, the invention will be further described.

As shown in Figure 1, indoor harmful gas monitoring system, comprise MQ2 gas sensor, dust sensor, A/D change-over circuit, DSP microprocessor, inlet end control circuit, described MQ2 gas sensor is connected DSP microprocessor signals input with dust sensor through A/D change-over circuit, DSP microprocessor signals output connects inlet end control circuit, and described inlet end control circuit comprises indoor air-valve control circuit and outdoor air-valve control circuit.Described DSP microprocessor signals input is also connected with keyboard.Described DSP microprocessor signals output is also connected with display and warning device.Described DSP microprocessor also connects host computer by communication interface.

The present invention is by air concentrations such as the pernicious gases in MQ2 gas sensor, the real-time nernst cell of dust sensor, and signal is sent to DSP microprocessor, the analysis of DSP microprocessor processes is shown by display, and compare with the setting value of input through keyboard, if pernicious gas isoconcentration exceeds standard, DSP microprocessor sends control instruction, action made by warning device, inform that indoor occupant is ready, simultaneously, DSP microprocessor also sends control instruction to inlet end control circuit, and what opening chamber's inner blower was conducive to indoor harmful gas is discharged into outside room; If pernicious gas isoconcentration does not exceed standard, DSP microprocessor sends control instruction to inlet end control circuit, opens the circulation that outdoor fan is conducive to indoor-outdoor air.Administrative staff also control whole system by host computer real time inspection.

Claims (4)

1. indoor harmful gas monitoring system, comprise MQ2 gas sensor, dust sensor, A/D change-over circuit, DSP microprocessor, inlet end control circuit, it is characterized in that: described MQ2 gas sensor is connected DSP microprocessor signals input with dust sensor through A/D change-over circuit, DSP microprocessor signals output connects inlet end control circuit, and described inlet end control circuit comprises indoor air-valve control circuit and outdoor air-valve control circuit.
2. indoor harmful gas monitoring system according to claim 1, is characterized in that: described DSP microprocessor signals input is also connected with keyboard.
3. indoor harmful gas monitoring system according to claim 1, is characterized in that: described DSP microprocessor signals output is also connected with display and warning device.
4. indoor harmful gas monitoring system according to claim 1, is characterized in that: described DSP microprocessor also connects host computer by communication interface.
CN201410849583.5A 2014-12-31 2014-12-31 Indoor harmful gas monitoring system CN104456857A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410849583.5A CN104456857A (en) 2014-12-31 2014-12-31 Indoor harmful gas monitoring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410849583.5A CN104456857A (en) 2014-12-31 2014-12-31 Indoor harmful gas monitoring system

Publications (1)

Publication Number Publication Date
CN104456857A true CN104456857A (en) 2015-03-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410849583.5A CN104456857A (en) 2014-12-31 2014-12-31 Indoor harmful gas monitoring system

Country Status (1)

Country Link
CN (1) CN104456857A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104729034A (en) * 2015-04-09 2015-06-24 郭陇军 Ventilating system
CN105571997A (en) * 2016-01-19 2016-05-11 华北电力大学(保定) Measurement and control method and device for particle concentration of indoor air
CN106093352A (en) * 2016-05-27 2016-11-09 国网浙江省电力公司宁波供电公司 A kind of oily close analyser of micro-crystal
CN107576354A (en) * 2017-08-07 2018-01-12 深圳益强信息科技有限公司 Parameter detecting and the system and method for monitoring
CN108151260A (en) * 2018-01-03 2018-06-12 西安鹏光环保科技有限责任公司 A kind of indoor harmful gas monitors system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2472235Y (en) * 2001-03-21 2002-01-16 南京大学 Indoor air quality monitor
JP2005216257A (en) * 2004-02-02 2005-08-11 Matsushita Electric Works Ltd Gas warning device
US20060207325A1 (en) * 2005-03-17 2006-09-21 Denso Corporation Window fog detecting apparatus
CN201449382U (en) * 2009-07-23 2010-05-05 华南理工大学 Indoor air quality monitoring and control system
CN201765479U (en) * 2010-09-04 2011-03-16 中南林业科技大学 Portable indoor environment monitoring device
CN202993473U (en) * 2012-12-25 2013-06-12 长沙学院 Indoor air quality monitoring and controlling device
CN203643427U (en) * 2013-11-22 2014-06-11 西安联控电气有限责任公司 Indoor air quality comprehensive-detection system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2472235Y (en) * 2001-03-21 2002-01-16 南京大学 Indoor air quality monitor
JP2005216257A (en) * 2004-02-02 2005-08-11 Matsushita Electric Works Ltd Gas warning device
US20060207325A1 (en) * 2005-03-17 2006-09-21 Denso Corporation Window fog detecting apparatus
CN201449382U (en) * 2009-07-23 2010-05-05 华南理工大学 Indoor air quality monitoring and control system
CN201765479U (en) * 2010-09-04 2011-03-16 中南林业科技大学 Portable indoor environment monitoring device
CN202993473U (en) * 2012-12-25 2013-06-12 长沙学院 Indoor air quality monitoring and controlling device
CN203643427U (en) * 2013-11-22 2014-06-11 西安联控电气有限责任公司 Indoor air quality comprehensive-detection system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104729034A (en) * 2015-04-09 2015-06-24 郭陇军 Ventilating system
CN105571997A (en) * 2016-01-19 2016-05-11 华北电力大学(保定) Measurement and control method and device for particle concentration of indoor air
CN106093352A (en) * 2016-05-27 2016-11-09 国网浙江省电力公司宁波供电公司 A kind of oily close analyser of micro-crystal
CN107576354A (en) * 2017-08-07 2018-01-12 深圳益强信息科技有限公司 Parameter detecting and the system and method for monitoring
CN108151260A (en) * 2018-01-03 2018-06-12 西安鹏光环保科技有限责任公司 A kind of indoor harmful gas monitors system

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Application publication date: 20150325