EP3143342A1 - Dispositif de commande d'un dispositif de ventilation d'un local et procédé de ventilation d'un local - Google Patents

Dispositif de commande d'un dispositif de ventilation d'un local et procédé de ventilation d'un local

Info

Publication number
EP3143342A1
EP3143342A1 EP15723882.5A EP15723882A EP3143342A1 EP 3143342 A1 EP3143342 A1 EP 3143342A1 EP 15723882 A EP15723882 A EP 15723882A EP 3143342 A1 EP3143342 A1 EP 3143342A1
Authority
EP
European Patent Office
Prior art keywords
ventilation
room
sound
control device
noise
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.)
Granted
Application number
EP15723882.5A
Other languages
German (de)
English (en)
Other versions
EP3143342B1 (fr
EP3143342C0 (fr
Inventor
Karlheinz Bay
Philip Leistner
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.)
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Publication of EP3143342A1 publication Critical patent/EP3143342A1/fr
Application granted granted Critical
Publication of EP3143342B1 publication Critical patent/EP3143342B1/fr
Publication of EP3143342C0 publication Critical patent/EP3143342C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F24F11/0001—Control or safety arrangements for ventilation
    • 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
    • F24F11/0001—Control or safety arrangements for ventilation
    • F24F2011/0002—Control or safety arrangements for ventilation for admittance of outside air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2130/00—Control inputs relating to environmental factors not covered by group F24F2110/00
    • F24F2130/40—Noise

Definitions

  • the application relates to a control device for a room ventilation device and method for controlling a room ventilation device.
  • Room characteristics such as Room temperature, room humidity and room air quality (Fig. 1 a). This makes demand-driven, energy-efficient ventilation possible. Ventilation is provided for certain limit values, with other limit values the ventilation is interrupted again. This control can be achieved by considering z. B. the
  • Ventilation noise falls below again. In the sometimes standardized practice, therefore, this quiescent level also applies as the maximum allowable ventilation noise level. If there is an increased need for ventilation, z. B. significantly quieter and more
  • Air handling units are used or the ventilation units are equipped with elaborate mufflers. Incidentally, these mufflers cause a pressure loss, which in turn requires increased fan power with associated electrical power consumption. The noise reduction of the ventilation is in any case associated with a considerable effort. A problem of controlled natural and mechanical ventilation devices is thus to minimize the associated noise in the ventilated room, which can be distracting from the users. So far, the user must either accept these acoustic disturbances or they are very elaborate arrangements necessary, such. B. silencers in the ventilation equipment or on the facade openings to reduce these disturbances.
  • Object of this invention is to enable a room ventilation, in which the
  • control device for a room ventilation device, which is used for ventilation of a room.
  • the control device is designed such that when deciding whether the
  • Room ventilation device should cause ventilation, one of the ventilation
  • the ventilation can contribute in several ways to the noise pollution in the room. Sound from the environment can enter the room through an open window. In the case of ventilation with a fan fan noise may occur. To a limited extent, even with ventilation with a fan, sound from the environment can penetrate into a room. Another source of noise can be the opening and closing of the windows self-portray. As explained in the introduction, the prior art always pursues the approach of reducing the sound that enters the room through ventilation.
  • a sound detection device is present in the room. This allows the control depending on the sound detected in the room.
  • an already high level of noise in the room such as playing children in a kindergarten, an additional noise pollution by ventilation will lead to no annoyance. If the kids are sleeping, one should
  • an operating condition of a fan provided for ventilating the room may be taken into account.
  • a statement can be made as to whether the sound detected in the room originates from the fan or from other sources.
  • Operate operating conditions and record the sound recorded in the room are also known from the manufacturer data, but often do not consider the respective space sufficiently.
  • Room ventilation device serving window or a facade opening controlled.
  • the presence of persons in the room can be detected.
  • room ventilation systems are operated so that no operation takes place in the absence of persons, since there is no need for ventilation. But to avoid noise pollution, it may be useful to ventilate especially in the absence. It goes without saying that a window must not be opened in this way if there is a risk of break-ins.
  • this detection device can also detect the presence of persons. Is the detection device so sensitive that even breathing sounds of an otherwise quiet person can be detected, eg. As in bedrooms or sick rooms, so that the presence of people in the room can be detected.
  • the sound in the environment can be determined from the time and stored data, at which time which sound is to be expected. For example, it may be known that on a workday morning, between 7:00 am and 8:00 am, there is always such a high level of noise that it is better not to ventilate. It goes without saying that this procedure can naturally lead to errors. However, this can be dispensed with a detection device for the sound in the environment or its temporary failure to be bridged.
  • the sound in the environment may be off
  • Real-time information and / or derived from real-time information based forecasts of sound generating events For example, it is possible to derive from a current flight plan whether aircraft noise is to be expected. Current flight schedules are in many cases easily interrogated on the Internet. It makes sense to create a prognosis from a requested real-time information, when noise is expected. For example, from a surveyed flight plan with the help of a forecast it can become clear that aircraft noise will occur in three minutes. Especially with a ventilation with an open window, it is advantageous to know the sound in the environment in advance in order to close the window in good time.
  • Detecting devices for sound present in the environment so that propagating acoustic events, in particular moving noise-generating means of transport, can be detected and a forecast of the expected sound, in particular for a plurality of rooms to be ventilated, can be created.
  • an urban network should be considered that captures and tracks propagating acoustic events and provides both local and temporal forecasts for individual buildings.
  • the pursuit of an inner-city train passage or a departing aircraft can thus contribute to safely predictable acoustic control by closing the windows of affected buildings in good time at night.
  • the individual detection devices for sound in the environment can also be used for control devices located there
  • Rooms are used without a forecast.
  • the sound detection devices may also detect other sound, such as from a construction site, and, accordingly, cause the windows to close in the immediate vicinity of the construction site.
  • an analysis of the sound can be made with regard to the subjective annoyance emanating therefrom. Since ultimately it is mainly, if not exclusively, the avoidance of subjective harassment, it makes sense not only to consider the level of the sound level, but also the resulting subjective harassment. For practical implementation, the
  • the sound can also be used to mask information-containing speech signals. For example, it is possible to consciously accept the penetration of ambient sound, if less distracting conversations are perceived as a result.
  • an intervention of users is possible, so that the room ventilation can be done according to current wishes of the user.
  • Such a configuration increases the user's acceptance, since he does not feel at the mercy of technology. Above all, it should be noted that there may be situations in which a user high air quality or non-existent
  • control device is designed to control a room ventilation device for ventilating a room of a mobile device, in particular of a vehicle. Even in vehicles high air quality with low noise is desirable.
  • sound in particular sound in the
  • the air quality is low. Especially in this case is not necessarily the To detect sound in the environment. A tunnel is sometimes also to the sound within the vehicle, so to recognize by the detection device for sound in the room.
  • a signal preprocessing and signal evaluation unit is provided so that control signals for the room ventilation apparatus can be provided.
  • amplifier or frequency filtering available.
  • a signal evaluation module is provided which from the detected
  • noise-related signals and other noise-relevant data a control signal for noise-dependent adjustment of the ventilation device generated that controls the room ventilation device directly or as an element of a higher-level room control.
  • the invention also relates to a method for ventilating a room, wherein in the decision whether the room ventilation device is to effect a ventilation, a noise pollution resulting from the ventilation for persons located in the room can be taken into account, wherein sound in the environment of the room, from the Aeration serving air is taken into account. Further explanations of the method are omitted since the method is already sufficiently clear from the description of the control device. The method can be carried out with a control device described above. Exemplary embodiments and further details
  • Fig. 1 a Schematic representation of the generation or propagation of sound through
  • Ventilation equipment in naturally or mechanically ventilated rooms (prior art)
  • FIG. 1 b Schematic representation of the control of these ventilation devices on the
  • FIG. 2 Exemplary embodiment of the acoustic control according to the invention of natural and mechanical ventilation devices for rooms on the basis of sensory detected noises, their evaluation and derivation of control signals.
  • FIG. 3 Exemplary embodiment of the acoustic control according to the invention of natural and mechanical ventilation devices for rooms on the basis of sensory detected noises, their evaluation in the context of further room characteristics, information and data for the superordinate derivation of control signals.
  • Fig. 4 Exemplary schematic representation of the time profile of the air quality in a room (a), the corresponding room ventilation (b) depending on a limit of air quality, regardless of the air quality ongoing development of user noise in the room or at the same time the maximum permissible noise level (c) as well as the
  • the acoustic control according to the invention takes into account three aspects required for the solution.
  • Ventilation-related noises whether as an entry from the outside through windows or from
  • Ventilation units in the room separate from each other.
  • These signals are directly, z. B. with at least one, but usually several (vibro-) acoustic sensors (sound and vibration sensor) (Fig. 2), or indirectly, for. B. based on information on Störschallermaschineern (traffic information such as data from traffic guidance or from driving and flight schedules at external sound sources and device-related
  • the noise separation can be based on the relation between the ventilation noise and the speed of the fan, expressed by a linear correlation or a type of characteristic.
  • the resulting expected value of the ventilation noise is in the room with the means of a sound sensor, for. B. one or more microphones at representative locations, measured noise level compared, so that from the comparison can be concluded on the noise balance. If the measured noise level is above the expected value of the speed-related ventilation noise, the user noise in the room exceeds the ventilation noise. Depending on the difference, it is still possible to ventilate or increase the ventilation performance. If the measured noise level corresponds to the expected value of the ventilation noise, the ventilation (speed) is gradually reduced by a controller and the noise balance is checked until the useful noise dominates again.
  • Interior noise a spectrally selective amplitude and correlation evaluation, as here several noise sources in space overlap.
  • the noise components have to be extracted from the resulting sound.
  • two sensors or signals are usually required, the z. B. by measuring positions outward and inward differentiate. These are usually microphones or vibration sensors.
  • the inner and outer windows of a window can be used together as direction detectors.
  • the sound intensity method can be used. This information and the noise amplitudes of the two sensors allow a clear assessment of the noise situation in terms of acoustic control.
  • the known distance or phase difference of the sound signals in the cross-correlation function can be used to separate the noise components based on the sign of the phase difference.
  • the sensors must be protected against eg mechanical or weather influences as well as against unconscious manipulation.
  • the acoustically determined control signals in conjunction with other relevant information, such as day or time, presence of users, electronically and semantically prepare, so they with other sensor signals, eg. B. resulting from room temperature, humidity and air quality, can be brought together (Fig. 3).
  • the signal for influencing the ventilation device is generated and transmitted to them.
  • the priority rules include z. B. different time constants for acoustic interference and for the acceptable air quality.
  • the decision model is therefore for psychoacoustically justified criteria, such as e.g. Annoyance to supplement the interference potential.
  • the controller may be provided with a scenario memory that holds for a predetermined period of time, such as the situation outside (eg, outside noise) and inside Behave or change (eg C0 2 content).
  • a scenario memory that holds for a predetermined period of time, such as the situation outside (eg, outside noise) and inside Behave or change (eg C0 2 content).
  • Both critical phases, eg with high C0 2- Jardin Kunststoffmaschinehalt and at the same time high noise pollution, as well as harmless periods are like that
  • this qualitative acoustic influence is also to be quantified or practically realized, i. a gradual change in the ventilation rate with a corresponding change, whether gradual or continuous, to link the noise balance. With ventilation units, this change can in turn be reacted with the speed.
  • the opening area that is equally responsible for the ventilation rate and the resulting sound insulation, eg. As the tilt angle or Ausstellbine, a gradual
  • FIG. 1 shows a room 1 which, in the variants shown above, can be ventilated with a window 2, in the variants shown below with a fan 3.
  • a vehicle 4 generates sound in the environment. Accordingly, the space 1 in Figure 1 b above the sound 5a exposed.
  • the fan 3 leads to a sound load 5b.
  • FIG. 2 differs from FIG. 1 in that in addition detection devices 8 for the sound are present.
  • detection devices 8 for the sound are present in the variant shown above, in which the ventilation takes place with the window 2, both a detection device 8 for the sound in the room 1 as well as a detection device 8 for the sound in the environment can be seen.
  • Detected means 8 sound, the C0 2 concentration, the relative humidity and the temperature of the room air also interventions by the user, which can be excited by a C0 2 traffic light, taken into account.
  • the time and timetables can be taken into account.
  • Figures 4a to 4d show the results of the improved control. To the right, the time is plotted. Upwards, the air quality is plotted in FIG. 4a, where the air quality rises. It can be seen that air quality fluctuates around a limit shown by the dashed line.
  • FIG. 4b the ventilation and the associated ventilation noise are plotted upwards, which would result in ventilation aligned with the requirement according to FIG. 4a.
  • FIG. 4c the permissible noise level resulting from the analysis of the noise level present in room 1 is plotted upward.
  • FIG. 4 d Taking into account the ventilation requirement according to FIG. 4 a and the permissible noise level according to FIG. 4 c, the resulting ventilation and the associated ventilation noise are shown in FIG. 4 d.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Ventilation (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

L'invention concerne un dispositif de commande (6, 7) d'un dispositif de ventilation (2, 3) servant à ventiler un local (1). Le dispositif de commande (6, 7) est configuré de telle manière qu'au moment de décider si le dispositif de ventilation (2, 3) d'un local doit exercer une ventilation, une nuisance sonore causée par la ventilation pour les personnes se trouvant dans le local (1) peut être prise en considération. Le dispositif comprend un dispositif de détection (8) du son régnant dans l'environnement du local (1), d'où provient l'air servant à la ventilation. L'invention concerne par ailleurs un procédé de ventilation d'un local (1) selon lequel, au moment de décider si le dispositif de ventilation (2, 3) d'un local doit exercer une ventilation, une nuisance sonore causée par la ventilation pour les personnes se trouvant dans le local (1) peut être prise en considération, le son régnant dans l'environnement du local (1), d'où provient l'air servant à la ventilation, étant pris en considération.
EP15723882.5A 2014-05-12 2015-05-11 Unité de contrôle pour la ventilation d'un espace et méthode de ventilation d'un espace Active EP3143342B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014106606.5A DE102014106606A1 (de) 2014-05-12 2014-05-12 Steuereinrichtung für eine Raumlüftungseinrichtung und Verfahren zur Belüftung eines Raums
PCT/EP2015/060352 WO2015173185A1 (fr) 2014-05-12 2015-05-11 Dispositif de commande d'un dispositif de ventilation d'un local et procédé de ventilation d'un local

Publications (3)

Publication Number Publication Date
EP3143342A1 true EP3143342A1 (fr) 2017-03-22
EP3143342B1 EP3143342B1 (fr) 2024-03-06
EP3143342C0 EP3143342C0 (fr) 2024-03-06

Family

ID=53199959

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15723882.5A Active EP3143342B1 (fr) 2014-05-12 2015-05-11 Unité de contrôle pour la ventilation d'un espace et méthode de ventilation d'un espace

Country Status (4)

Country Link
EP (1) EP3143342B1 (fr)
DE (1) DE102014106606A1 (fr)
PL (1) PL3143342T3 (fr)
WO (1) WO2015173185A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021209641A1 (de) * 2021-09-01 2023-03-02 Ziehl-Abegg Se Verfahren zum Betrieb eines Ventilators und System zur Durchführung des Verfahrens
CH721935A1 (de) * 2024-06-27 2026-01-15 Trinovent Gmbh Anlage zur wärmeversorgung eines gebäudes und betriebsverfahren
DE102024120393A1 (de) * 2024-07-18 2026-01-22 Vaillant Gmbh Verfahren zum Betreiben eines HVAC-Systems, HVAC-System und Computerprogramm

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FR1449710A (fr) * 1965-05-31 1966-08-19 Nat Res Dev Appareil de fermeture à commande acoustique
DE2719144A1 (de) * 1977-04-29 1978-11-02 Siegenia Frank Kg Schalldaemmende lueftungsvorrichtung fuer raeume
DE3805458A1 (de) * 1988-02-22 1989-08-31 Hans Uschwa Klimaanlage mit zuluftdurchstoemten waermetauscher im zu klimatisierenden raum
US5010739A (en) * 1989-06-30 1991-04-30 Kabushiki Kaisha Toshiba Air conditioning apparatus having audible sound level control function
JPH09190244A (ja) * 1996-01-12 1997-07-22 Hitachi Ltd 冷却用ファンの制御装置
NL1004626C2 (nl) * 1996-11-27 1998-05-28 Berli Holding B V Werkwijze voor het ventileren van een ruimte alsmede inrichting geschikt voor het uitvoeren van een dergelijke werkwijze.
US6494381B2 (en) * 2000-12-21 2002-12-17 Koninklijke Phillips Electronics N.V. Cooling fan in sync with audio output level
JP2005221107A (ja) * 2004-02-03 2005-08-18 Sanyo Electric Co Ltd 空気調和装置
US7459002B2 (en) * 2004-08-31 2008-12-02 Airistar Technologies Llc Modular presentation apparatus having integral air processing apparatus
JP2006118747A (ja) * 2004-10-19 2006-05-11 Aisin Aw Co Ltd 空気調和機
DE202012103045U1 (de) * 2012-08-13 2013-11-18 Meltem Wärmerückgewinnung GmbH & Co. KG Luftaustauschvorrichtung mit Geräuschregulierung

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See also references of WO2015173185A1 *

Also Published As

Publication number Publication date
WO2015173185A1 (fr) 2015-11-19
DE102014106606A1 (de) 2015-11-12
PL3143342T3 (pl) 2024-07-08
EP3143342B1 (fr) 2024-03-06
EP3143342C0 (fr) 2024-03-06

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