EP3143342A1 - Control device for a space ventilation device and method for ventilating a space - Google Patents
Control device for a space ventilation device and method for ventilating a spaceInfo
- 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
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 108
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 19
- 238000011156 evaluation Methods 0.000 claims description 8
- 238000007781 pre-processing Methods 0.000 claims description 3
- 230000001902 propagating effect Effects 0.000 claims description 3
- 239000003570 air Substances 0.000 description 25
- 238000005399 mechanical ventilation Methods 0.000 description 5
- 230000001953 sensory effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 238000009795 derivation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 208000003443 Unconsciousness Diseases 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010219 correlation analysis Methods 0.000 description 1
- 238000005314 correlation function Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003909 pattern recognition Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000004393 prognosis Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
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)
- Air Conditioning Control Device (AREA)
- Ventilation (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014106606.5A DE102014106606A1 (en) | 2014-05-12 | 2014-05-12 | Control device for a room ventilation device and method for ventilating a room |
PCT/EP2015/060352 WO2015173185A1 (en) | 2014-05-12 | 2015-05-11 | Control device for a space ventilation device and method for ventilating a space |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3143342A1 true EP3143342A1 (en) | 2017-03-22 |
EP3143342C0 EP3143342C0 (en) | 2024-03-06 |
EP3143342B1 EP3143342B1 (en) | 2024-03-06 |
Family
ID=53199959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15723882.5A Active EP3143342B1 (en) | 2014-05-12 | 2015-05-11 | Control device for a room ventilation device and method of ventilating a room |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3143342B1 (en) |
DE (1) | DE102014106606A1 (en) |
PL (1) | PL3143342T3 (en) |
WO (1) | WO2015173185A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021209641A1 (en) * | 2021-09-01 | 2023-03-02 | Ziehl-Abegg Se | Method of operating a ventilator and system for carrying out the method |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1449710A (en) * | 1965-05-31 | 1966-08-19 | Nat Res Dev | Acoustically operated locking device |
DE2719144A1 (en) * | 1977-04-29 | 1978-11-02 | Siegenia Frank Kg | SOUND-INSULATING VENTILATION DEVICE FOR ROOMS |
DE3805458A1 (en) * | 1988-02-22 | 1989-08-31 | Hans Uschwa | Air-conditioning plant with heat exchanger in the room to be air-conditioned, supply air flowing through the heat exchanger |
US5010739A (en) * | 1989-06-30 | 1991-04-30 | Kabushiki Kaisha Toshiba | Air conditioning apparatus having audible sound level control function |
JPH09190244A (en) * | 1996-01-12 | 1997-07-22 | Hitachi Ltd | Controller for cooling fan |
NL1004626C2 (en) * | 1996-11-27 | 1998-05-28 | Berli Holding B V | Method for ventilating a room as well as a device suitable for carrying out such a method. |
US6494381B2 (en) * | 2000-12-21 | 2002-12-17 | Koninklijke Phillips Electronics N.V. | Cooling fan in sync with audio output level |
JP2005221107A (en) * | 2004-02-03 | 2005-08-18 | Sanyo Electric Co Ltd | Air conditioner |
US7459002B2 (en) * | 2004-08-31 | 2008-12-02 | Airistar Technologies Llc | Modular presentation apparatus having integral air processing apparatus |
JP2006118747A (en) * | 2004-10-19 | 2006-05-11 | Aisin Aw Co Ltd | Air conditioner |
DE202012103045U1 (en) * | 2012-08-13 | 2013-11-18 | Meltem Wärmerückgewinnung GmbH & Co. KG | Air exchange device with noise control |
-
2014
- 2014-05-12 DE DE102014106606.5A patent/DE102014106606A1/en active Pending
-
2015
- 2015-05-11 PL PL15723882.5T patent/PL3143342T3/en unknown
- 2015-05-11 WO PCT/EP2015/060352 patent/WO2015173185A1/en active Application Filing
- 2015-05-11 EP EP15723882.5A patent/EP3143342B1/en active Active
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2015173185A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102014106606A1 (en) | 2015-11-12 |
WO2015173185A1 (en) | 2015-11-19 |
PL3143342T3 (en) | 2024-07-08 |
EP3143342C0 (en) | 2024-03-06 |
EP3143342B1 (en) | 2024-03-06 |
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