EP1546612A1 - Dispositif permettant de determiner la qualite d'air ambiant - Google Patents

Dispositif permettant de determiner la qualite d'air ambiant

Info

Publication number
EP1546612A1
EP1546612A1 EP03751618A EP03751618A EP1546612A1 EP 1546612 A1 EP1546612 A1 EP 1546612A1 EP 03751618 A EP03751618 A EP 03751618A EP 03751618 A EP03751618 A EP 03751618A EP 1546612 A1 EP1546612 A1 EP 1546612A1
Authority
EP
European Patent Office
Prior art keywords
signal
threshold value
variable
room
variables
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.)
Withdrawn
Application number
EP03751618A
Other languages
German (de)
English (en)
Inventor
Norbert Peter Vroege
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Innosource BV
Original Assignee
Innosource BV
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 Innosource BV filed Critical Innosource BV
Publication of EP1546612A1 publication Critical patent/EP1546612A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52—Indication arrangements, e.g. displays
    • F24F11/526—Indication arrangements, e.g. displays giving audible indications
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/50—Air quality properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/50—Air quality properties
    • F24F2110/65—Concentration of specific substances or contaminants
    • F24F2110/70—Carbon dioxide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the present invention relates to a device for determining the quality of the ambient air in a room.
  • German patent 19700964 describes a multisensor which is used to control a heat treatment installation.
  • the atmosphere in rooms is important to the well being of humans and animals. This is true in particular in rooms in which a relatively large number of people are present. The presence of this relatively large number of people may cause the conditions in a room of this type to change rapidly.
  • One example is a classroom. It has been found that when the windows are closed conditions may deteriorate rapidly during the lesson, and consequently the ability of the pupils to absorb fresh information drops especially quickly. It has been found that the learning performance and attentiveness can be improved if the atmosphere in rooms of this type is improved.
  • the devices which have been used hitherto are particularly complicated and expensive, and consequently they are not in general use. Moreover, it has been found that devices of this type do not operate optimally under all conditions. If various parameters are being measured, it is preferable if, in the event of a defined threshold value for each variable being exceeded, a signal is emitted indicating that this threshold value has been exceeded. However, it has been found that even though defined threshold values are not exceeded, the climate in a certain room may nevertheless not satisfy the demands imposed upon it.
  • US-A-5,394,934 describes a device designed as a type of thermostat. It is to be attached to the wall of a room. The use of a device of this type is limited to the specific room.
  • the object of the present invention is to avoid the drawbacks described above and to provide a device which is simple to use and allows accurate determination of the climatic conditions inside a room, such as a classroom or other rooms in which a relatively large number of people are present.
  • this object is realized with a device for determining the quality of the ambient air in a room, comprising at least one sensor for measuring at least two variables, such as temperature, atmospheric humidity, number of particles, percentage of carbon dioxide, and a processing and comparison element for processing the signal emanating from the sensor, comparing the values of the variables in this signal with threshold values for these variables stored in a table and outputting an indication using a display and/or sound signal when said threshold value is passed, the level of the threshold value for a variable being dependent on the measured value for another variable, the parts of this device being accommodated in a stand-alone casing comprising a base, and the device comprising an energy store.
  • the threshold value for a variable, at which a signal is emitted when the threshold value is exceeded is not a constant value, but rather varies as a function of the value of other measured variables, i.e. if all the conditions are optimal apart from one condition, such as for example the atmospheric humidity, the threshold at which a signal is emitted will be relatively high. However, if an undesirable temperature level is approached at the same time, without the threshold value selected for this level being exceeded, the threshold value for the first variable, such as the atmospheric humidity, will be selected at a lower level and a signal will be emitted at an earlier stage.
  • the device By designing the device to be a stand-alone unit, accommodated in a case or housing which can be placed onto a table or the like, it is possible to quickly determine the climate in any room. Since the device has its own energy supply such as a battery, and has the option of emitting a sound signal, it is not necessary to take special measures in order to rapidly determine the air quality in any desired room. Moreover, the device according to the invention can be quickly changed between different rooms. For example, in schools it is possible to monitor a large number of classrooms using just one device.
  • the device is a structure without the need for any external cabling, i.e. the device is provided with its own energy supply and/or its own energy store.
  • An energy supply may, inter alia, comprise a solar cell, while an energy store may comprise a battery.
  • the indication which is given in order to characterize the conditions inside a room is carried out using a display, on which, for example, it is possible to present the temperature, atmospheric humidity and the like. Moreover, it is possible to use a sound and/or light signal to indicate whether certain threshold values are exceeded.
  • Fig. 1 diagrammatically depicts an embodiment of the device according to the invention.
  • Fig. 2 shows the block diagram of the device according to the invention.
  • the device according to the invention is denoted overall by 1. It is provided with a base 3 and a part 4 which projects from the base and in which there is a display 2.
  • a device of this type is a "stand-alone" unit and can easily be placed onto a desk or the like.
  • Fig. 2 diagrammatically depicts the structure of the device. 2 denotes the display, which is controlled by control/storage element 5. Sensors for determining four parameters, which sensors are denoted by 6, 7, 8 and 9, are connected to the control/storage element 5. These sensors can be used to detect the number of particles in the air, the percentage of carbon dioxide, the temperature and the humidity. Of course, it is also possible to measure other parameters, such as the conductivity and the like.
  • 12 denotes an antenna which symbolizes a transmission device.
  • 10 is a solar cell, while 11 is a battery.
  • 15 is a loudspeaker for emitting a sound signal, while 14 is an LED or other light-emitting element.
  • a table containing threshold values for each of the variables measured by sensors 6-9 is stored in element 5. If the values measured by the sensors 6, 8 and 9, for example, are well below the undesirable situation, the threshold value for the variable measured by sensor 7 is relatively high. However, if the values for the variables measured using the sensors 6, 8 and 9 approach their associated threshold values, without actually exceeding them, according to the invention the threshold value for the variable measured using sensor 7 is adjusted downward. If two of the sensors 6, 8 and 9 approach a threshold value, the threshold value of sensor 7 can be adjusted even further downward. Moreover, it is also possible, in such a situation, to adjust the threshold values for the sensors 6, 8 and/or 9 downward, i.e. lower threshold values are adopted for the combination measurement of the different variables if a number of threshold values are approached.
  • a warning signal can be given on display 2. Temperature, atmospheric humidity and the like can be presented on display 2.
  • the above-described device can be positioned without any physical connection to its surroundings, i.e. a single device can be used to alternately measure the climatic conditions in various rooms.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

Dispositif permettant de déterminer la qualité de l'air ambiant d'une pièce. Ce dispositif comporte au moins deux capteurs qui déterminent, par exemple, la température, l'humidité atmosphérique, le nombre de particules ou le pourcentage de dioxyde carbone. La valeur enregistrée par le capteur est comparée à une valeur de seuil stockée en mémoire. Selon la présente invention, la valeur de seuil pour une variable est dépendante de la valeur mesurée d'une autre variable, par ex. si la limite d'humidité atmosphérique est atteinte, un signal d'alarme est émis à une température plus basse, en termes relatifs, que si l'humidité atmosphérique est loin d'atteindre cette limite.
EP03751618A 2002-09-30 2003-09-30 Dispositif permettant de determiner la qualite d'air ambiant Withdrawn EP1546612A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL1021562A NL1021562C2 (nl) 2002-09-30 2002-09-30 Zelfstandig werkende inrichting voor het geven van informatie inzake luchtkwaliteit.
NL1021562 2002-09-30
PCT/NL2003/000671 WO2004029517A1 (fr) 2002-09-30 2003-09-30 Dispositif permettant de determiner la qualite d'air ambiant

Publications (1)

Publication Number Publication Date
EP1546612A1 true EP1546612A1 (fr) 2005-06-29

Family

ID=32041044

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03751618A Withdrawn EP1546612A1 (fr) 2002-09-30 2003-09-30 Dispositif permettant de determiner la qualite d'air ambiant

Country Status (4)

Country Link
EP (1) EP1546612A1 (fr)
AU (1) AU2003271233A1 (fr)
NL (1) NL1021562C2 (fr)
WO (1) WO2004029517A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010047322A1 (de) * 2010-10-01 2012-04-05 Abb Ag Elektrisches Installationsgerät mit einer Anzeige für die Raumluftgüte
CN103454378A (zh) * 2012-05-30 2013-12-18 张跃 一种多功能空气质量检测器
CN112015215A (zh) * 2019-05-31 2020-12-01 智达电小二(天津)科技有限公司 一种智慧教室自动控制系统
CN111412619A (zh) * 2020-02-28 2020-07-14 和湜(上海)建筑科技有限公司 一种室内环境智能控制系统及控制方法
CN112817352A (zh) * 2021-01-04 2021-05-18 河南职业技术学院 一种基于物联网的智慧教室

Family Cites Families (14)

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Publication number Priority date Publication date Assignee Title
US4462246A (en) * 1982-06-04 1984-07-31 Sierra Monitor Corporation Percent oxygen gauge
EP0518327B1 (fr) * 1991-06-14 1998-01-21 Matsushita Electric Industrial Co., Ltd. Système de conditionnement d'air
JP3026895B2 (ja) * 1992-10-13 2000-03-27 松下電器産業株式会社 空気質レベル判定方法および空気質レベル判定装置
GB2280978A (en) * 1993-07-19 1995-02-15 Benedict Chaplin Spencer Portable temperature detector
US5428964A (en) * 1994-01-10 1995-07-04 Tec-Way Air Quality Products Inc. Control for air quality machine
US5394934A (en) * 1994-04-15 1995-03-07 American Standard Inc. Indoor air quality sensor and method
US5589824A (en) * 1995-11-09 1996-12-31 Lynch Adam Q Multi-sensor detection system
DE19700964C2 (de) * 1997-01-14 1999-06-24 Probst Max Josef Einrichtung zur Raumklimatisierung
JPH10213341A (ja) * 1997-01-30 1998-08-11 Takenaka Komuten Co Ltd 空調用室内コントローラ
US5936532A (en) * 1998-06-16 1999-08-10 Peralta; David A. Smoke and carbon monoxide detector with clock
DE19855056C5 (de) * 1998-11-28 2008-10-02 AUMA-TEC Ausbau-, Umwelt- und Anlagen-Technik GmbH Gerätesystem für die Lüftung von Einzelräumen
AU3440501A (en) * 1999-11-17 2001-05-30 Simulation Systems And Applications, Inc. Carbon monoxide detector for air vehicles
GB2357142B (en) * 1999-12-07 2003-12-31 Ray Hudson Ltd Ventilation apparatus
DE10028333B4 (de) * 2000-06-05 2007-01-11 Gärtner, Erich Sicherheits-Funk-Schaltungsanordnung für ein Abluftsystem

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2004029517A1 *

Also Published As

Publication number Publication date
AU2003271233A1 (en) 2004-04-19
NL1021562C2 (nl) 2004-04-02
WO2004029517A1 (fr) 2004-04-08

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